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7c673cae FG |
1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | /* | |
4 | * Ceph - scalable distributed file system | |
5 | * | |
6 | * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net> | |
7 | * | |
8 | * This is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License version 2.1, as published by the Free Software | |
11 | * Foundation. See file COPYING. | |
12 | * | |
13 | */ | |
14 | ||
15 | ||
16 | // unix-ey fs stuff | |
17 | #include <unistd.h> | |
18 | #include <sys/types.h> | |
19 | #include <time.h> | |
20 | #include <utime.h> | |
11fdf7f2 | 21 | #include <string.h> |
7c673cae FG |
22 | #include <sys/stat.h> |
23 | #include <sys/param.h> | |
24 | #include <fcntl.h> | |
25 | #include <sys/file.h> | |
26 | #include <sys/utsname.h> | |
27 | #include <sys/uio.h> | |
28 | ||
29 | #include <boost/lexical_cast.hpp> | |
30 | #include <boost/fusion/include/std_pair.hpp> | |
31 | ||
32 | #if defined(__FreeBSD__) | |
33 | #define XATTR_CREATE 0x1 | |
34 | #define XATTR_REPLACE 0x2 | |
35 | #else | |
36 | #include <sys/xattr.h> | |
37 | #endif | |
38 | ||
39 | #if defined(__linux__) | |
40 | #include <linux/falloc.h> | |
41 | #endif | |
42 | ||
43 | #include <sys/statvfs.h> | |
44 | ||
45 | #include "common/config.h" | |
46 | #include "common/version.h" | |
47 | ||
11fdf7f2 TL |
48 | #include "mon/MonClient.h" |
49 | ||
50 | #include "messages/MClientCaps.h" | |
51 | #include "messages/MClientLease.h" | |
52 | #include "messages/MClientQuota.h" | |
53 | #include "messages/MClientReclaim.h" | |
54 | #include "messages/MClientReclaimReply.h" | |
7c673cae | 55 | #include "messages/MClientReconnect.h" |
11fdf7f2 | 56 | #include "messages/MClientReply.h" |
7c673cae FG |
57 | #include "messages/MClientRequest.h" |
58 | #include "messages/MClientRequestForward.h" | |
11fdf7f2 | 59 | #include "messages/MClientSession.h" |
7c673cae FG |
60 | #include "messages/MClientSnap.h" |
61 | #include "messages/MCommandReply.h" | |
7c673cae FG |
62 | #include "messages/MFSMap.h" |
63 | #include "messages/MFSMapUser.h" | |
11fdf7f2 TL |
64 | #include "messages/MMDSMap.h" |
65 | #include "messages/MOSDMap.h" | |
7c673cae FG |
66 | |
67 | #include "mds/flock.h" | |
11fdf7f2 | 68 | #include "mds/cephfs_features.h" |
7c673cae FG |
69 | #include "osd/OSDMap.h" |
70 | #include "osdc/Filer.h" | |
71 | ||
72 | #include "common/Cond.h" | |
7c673cae FG |
73 | #include "common/perf_counters.h" |
74 | #include "common/admin_socket.h" | |
75 | #include "common/errno.h" | |
76 | #include "include/str_list.h" | |
77 | ||
78 | #define dout_subsys ceph_subsys_client | |
79 | ||
80 | #include "include/lru.h" | |
81 | #include "include/compat.h" | |
82 | #include "include/stringify.h" | |
83 | ||
84 | #include "Client.h" | |
85 | #include "Inode.h" | |
86 | #include "Dentry.h" | |
b32b8144 | 87 | #include "Delegation.h" |
7c673cae FG |
88 | #include "Dir.h" |
89 | #include "ClientSnapRealm.h" | |
90 | #include "Fh.h" | |
91 | #include "MetaSession.h" | |
92 | #include "MetaRequest.h" | |
93 | #include "ObjecterWriteback.h" | |
94 | #include "posix_acl.h" | |
95 | ||
11fdf7f2 | 96 | #include "include/ceph_assert.h" |
7c673cae FG |
97 | #include "include/stat.h" |
98 | ||
e306af50 | 99 | #include "include/cephfs/ceph_ll_client.h" |
7c673cae FG |
100 | |
101 | #if HAVE_GETGROUPLIST | |
102 | #include <grp.h> | |
103 | #include <pwd.h> | |
104 | #include <unistd.h> | |
105 | #endif | |
106 | ||
107 | #undef dout_prefix | |
108 | #define dout_prefix *_dout << "client." << whoami << " " | |
109 | ||
110 | #define tout(cct) if (!cct->_conf->client_trace.empty()) traceout | |
111 | ||
112 | // FreeBSD fails to define this | |
113 | #ifndef O_DSYNC | |
114 | #define O_DSYNC 0x0 | |
115 | #endif | |
116 | // Darwin fails to define this | |
117 | #ifndef O_RSYNC | |
118 | #define O_RSYNC 0x0 | |
119 | #endif | |
120 | ||
121 | #ifndef O_DIRECT | |
122 | #define O_DIRECT 0x0 | |
123 | #endif | |
124 | ||
125 | #define DEBUG_GETATTR_CAPS (CEPH_CAP_XATTR_SHARED) | |
126 | ||
adb31ebb TL |
127 | using namespace TOPNSPC::common; |
128 | ||
7c673cae FG |
129 | void client_flush_set_callback(void *p, ObjectCacher::ObjectSet *oset) |
130 | { | |
131 | Client *client = static_cast<Client*>(p); | |
132 | client->flush_set_callback(oset); | |
133 | } | |
134 | ||
135 | ||
136 | // ------------- | |
137 | ||
138 | Client::CommandHook::CommandHook(Client *client) : | |
139 | m_client(client) | |
140 | { | |
141 | } | |
142 | ||
9f95a23c TL |
143 | int Client::CommandHook::call( |
144 | std::string_view command, | |
145 | const cmdmap_t& cmdmap, | |
146 | Formatter *f, | |
147 | std::ostream& errss, | |
148 | bufferlist& out) | |
7c673cae | 149 | { |
7c673cae | 150 | f->open_object_section("result"); |
9f95a23c TL |
151 | { |
152 | std::lock_guard l{m_client->client_lock}; | |
153 | if (command == "mds_requests") | |
154 | m_client->dump_mds_requests(f); | |
adb31ebb TL |
155 | else if (command == "mds_sessions") { |
156 | bool cap_dump = false; | |
157 | cmd_getval(cmdmap, "cap_dump", cap_dump); | |
158 | m_client->dump_mds_sessions(f, cap_dump); | |
159 | } else if (command == "dump_cache") | |
9f95a23c TL |
160 | m_client->dump_cache(f); |
161 | else if (command == "kick_stale_sessions") | |
162 | m_client->_kick_stale_sessions(); | |
163 | else if (command == "status") | |
164 | m_client->dump_status(f); | |
165 | else | |
166 | ceph_abort_msg("bad command registered"); | |
167 | } | |
7c673cae | 168 | f->close_section(); |
9f95a23c | 169 | return 0; |
7c673cae FG |
170 | } |
171 | ||
172 | ||
173 | // ------------- | |
174 | ||
175 | dir_result_t::dir_result_t(Inode *in, const UserPerm& perms) | |
176 | : inode(in), offset(0), next_offset(2), | |
177 | release_count(0), ordered_count(0), cache_index(0), start_shared_gen(0), | |
178 | perms(perms) | |
179 | { } | |
180 | ||
181 | void Client::_reset_faked_inos() | |
182 | { | |
183 | ino_t start = 1024; | |
184 | free_faked_inos.clear(); | |
185 | free_faked_inos.insert(start, (uint32_t)-1 - start + 1); | |
186 | last_used_faked_ino = 0; | |
11fdf7f2 | 187 | last_used_faked_root = 0; |
7c673cae FG |
188 | _use_faked_inos = sizeof(ino_t) < 8 || cct->_conf->client_use_faked_inos; |
189 | } | |
190 | ||
191 | void Client::_assign_faked_ino(Inode *in) | |
192 | { | |
11fdf7f2 TL |
193 | if (0 == last_used_faked_ino) |
194 | last_used_faked_ino = last_used_faked_ino + 2048; // start(1024)~2048 reserved for _assign_faked_root | |
7c673cae FG |
195 | interval_set<ino_t>::const_iterator it = free_faked_inos.lower_bound(last_used_faked_ino + 1); |
196 | if (it == free_faked_inos.end() && last_used_faked_ino > 0) { | |
11fdf7f2 | 197 | last_used_faked_ino = 2048; |
7c673cae FG |
198 | it = free_faked_inos.lower_bound(last_used_faked_ino + 1); |
199 | } | |
11fdf7f2 | 200 | ceph_assert(it != free_faked_inos.end()); |
7c673cae | 201 | if (last_used_faked_ino < it.get_start()) { |
11fdf7f2 | 202 | ceph_assert(it.get_len() > 0); |
7c673cae FG |
203 | last_used_faked_ino = it.get_start(); |
204 | } else { | |
205 | ++last_used_faked_ino; | |
11fdf7f2 | 206 | ceph_assert(it.get_start() + it.get_len() > last_used_faked_ino); |
7c673cae FG |
207 | } |
208 | in->faked_ino = last_used_faked_ino; | |
209 | free_faked_inos.erase(in->faked_ino); | |
210 | faked_ino_map[in->faked_ino] = in->vino(); | |
211 | } | |
212 | ||
11fdf7f2 TL |
213 | /* |
214 | * In the faked mode, if you export multiple subdirectories, | |
215 | * you will see that the inode numbers of the exported subdirectories | |
216 | * are the same. so we distinguish the mount point by reserving | |
217 | * the "fake ids" between "1024~2048" and combining the last | |
218 | * 10bits(0x3ff) of the "root inodes". | |
219 | */ | |
220 | void Client::_assign_faked_root(Inode *in) | |
221 | { | |
222 | interval_set<ino_t>::const_iterator it = free_faked_inos.lower_bound(last_used_faked_root + 1); | |
223 | if (it == free_faked_inos.end() && last_used_faked_root > 0) { | |
224 | last_used_faked_root = 0; | |
225 | it = free_faked_inos.lower_bound(last_used_faked_root + 1); | |
226 | } | |
227 | assert(it != free_faked_inos.end()); | |
228 | vinodeno_t inode_info = in->vino(); | |
229 | uint64_t inode_num = (uint64_t)inode_info.ino; | |
230 | ldout(cct, 10) << "inode_num " << inode_num << "inode_num & 0x3ff=" << (inode_num & 0x3ff)<< dendl; | |
231 | last_used_faked_root = it.get_start() + (inode_num & 0x3ff); // 0x3ff mask and get_start will not exceed 2048 | |
232 | assert(it.get_start() + it.get_len() > last_used_faked_root); | |
233 | ||
234 | in->faked_ino = last_used_faked_root; | |
235 | free_faked_inos.erase(in->faked_ino); | |
236 | faked_ino_map[in->faked_ino] = in->vino(); | |
237 | } | |
238 | ||
7c673cae FG |
239 | void Client::_release_faked_ino(Inode *in) |
240 | { | |
241 | free_faked_inos.insert(in->faked_ino); | |
242 | faked_ino_map.erase(in->faked_ino); | |
243 | } | |
244 | ||
245 | vinodeno_t Client::_map_faked_ino(ino_t ino) | |
246 | { | |
247 | vinodeno_t vino; | |
248 | if (ino == 1) | |
249 | vino = root->vino(); | |
250 | else if (faked_ino_map.count(ino)) | |
251 | vino = faked_ino_map[ino]; | |
252 | else | |
253 | vino = vinodeno_t(0, CEPH_NOSNAP); | |
11fdf7f2 | 254 | ldout(cct, 10) << __func__ << " " << ino << " -> " << vino << dendl; |
7c673cae FG |
255 | return vino; |
256 | } | |
257 | ||
258 | vinodeno_t Client::map_faked_ino(ino_t ino) | |
259 | { | |
11fdf7f2 | 260 | std::lock_guard lock(client_lock); |
7c673cae FG |
261 | return _map_faked_ino(ino); |
262 | } | |
263 | ||
264 | // cons/des | |
265 | ||
266 | Client::Client(Messenger *m, MonClient *mc, Objecter *objecter_) | |
267 | : Dispatcher(m->cct), | |
7c673cae | 268 | timer(m->cct, client_lock), |
11fdf7f2 TL |
269 | messenger(m), |
270 | monclient(mc), | |
271 | objecter(objecter_), | |
272 | whoami(mc->get_global_id()), | |
7c673cae FG |
273 | async_ino_invalidator(m->cct), |
274 | async_dentry_invalidator(m->cct), | |
275 | interrupt_finisher(m->cct), | |
276 | remount_finisher(m->cct), | |
e306af50 | 277 | async_ino_releasor(m->cct), |
7c673cae | 278 | objecter_finisher(m->cct), |
11fdf7f2 TL |
279 | m_command_hook(this), |
280 | fscid(0) | |
7c673cae FG |
281 | { |
282 | _reset_faked_inos(); | |
7c673cae | 283 | |
7c673cae FG |
284 | user_id = cct->_conf->client_mount_uid; |
285 | group_id = cct->_conf->client_mount_gid; | |
92f5a8d4 TL |
286 | fuse_default_permissions = cct->_conf.get_val<bool>( |
287 | "fuse_default_permissions"); | |
7c673cae | 288 | |
7c673cae FG |
289 | if (cct->_conf->client_acl_type == "posix_acl") |
290 | acl_type = POSIX_ACL; | |
291 | ||
7c673cae FG |
292 | lru.lru_set_midpoint(cct->_conf->client_cache_mid); |
293 | ||
294 | // file handles | |
295 | free_fd_set.insert(10, 1<<30); | |
296 | ||
297 | mdsmap.reset(new MDSMap); | |
298 | ||
299 | // osd interfaces | |
300 | writeback_handler.reset(new ObjecterWriteback(objecter, &objecter_finisher, | |
301 | &client_lock)); | |
302 | objectcacher.reset(new ObjectCacher(cct, "libcephfs", *writeback_handler, client_lock, | |
303 | client_flush_set_callback, // all commit callback | |
304 | (void*)this, | |
305 | cct->_conf->client_oc_size, | |
306 | cct->_conf->client_oc_max_objects, | |
307 | cct->_conf->client_oc_max_dirty, | |
308 | cct->_conf->client_oc_target_dirty, | |
309 | cct->_conf->client_oc_max_dirty_age, | |
310 | true)); | |
7c673cae FG |
311 | } |
312 | ||
313 | ||
314 | Client::~Client() | |
315 | { | |
9f95a23c | 316 | ceph_assert(ceph_mutex_is_not_locked(client_lock)); |
7c673cae | 317 | |
31f18b77 FG |
318 | // It is necessary to hold client_lock, because any inode destruction |
319 | // may call into ObjectCacher, which asserts that it's lock (which is | |
320 | // client_lock) is held. | |
9f95a23c | 321 | std::lock_guard l{client_lock}; |
7c673cae FG |
322 | tear_down_cache(); |
323 | } | |
324 | ||
325 | void Client::tear_down_cache() | |
326 | { | |
327 | // fd's | |
328 | for (ceph::unordered_map<int, Fh*>::iterator it = fd_map.begin(); | |
329 | it != fd_map.end(); | |
330 | ++it) { | |
331 | Fh *fh = it->second; | |
11fdf7f2 | 332 | ldout(cct, 1) << __func__ << " forcing close of fh " << it->first << " ino " << fh->inode->ino << dendl; |
7c673cae FG |
333 | _release_fh(fh); |
334 | } | |
335 | fd_map.clear(); | |
336 | ||
337 | while (!opened_dirs.empty()) { | |
338 | dir_result_t *dirp = *opened_dirs.begin(); | |
11fdf7f2 | 339 | ldout(cct, 1) << __func__ << " forcing close of dir " << dirp << " ino " << dirp->inode->ino << dendl; |
7c673cae FG |
340 | _closedir(dirp); |
341 | } | |
342 | ||
343 | // caps! | |
344 | // *** FIXME *** | |
345 | ||
346 | // empty lru | |
7c673cae | 347 | trim_cache(); |
11fdf7f2 | 348 | ceph_assert(lru.lru_get_size() == 0); |
7c673cae FG |
349 | |
350 | // close root ino | |
11fdf7f2 | 351 | ceph_assert(inode_map.size() <= 1 + root_parents.size()); |
7c673cae FG |
352 | if (root && inode_map.size() == 1 + root_parents.size()) { |
353 | delete root; | |
354 | root = 0; | |
355 | root_ancestor = 0; | |
356 | while (!root_parents.empty()) | |
357 | root_parents.erase(root_parents.begin()); | |
358 | inode_map.clear(); | |
359 | _reset_faked_inos(); | |
360 | } | |
361 | ||
11fdf7f2 | 362 | ceph_assert(inode_map.empty()); |
7c673cae FG |
363 | } |
364 | ||
365 | inodeno_t Client::get_root_ino() | |
366 | { | |
11fdf7f2 | 367 | std::lock_guard l(client_lock); |
7c673cae FG |
368 | if (use_faked_inos()) |
369 | return root->faked_ino; | |
370 | else | |
371 | return root->ino; | |
372 | } | |
373 | ||
374 | Inode *Client::get_root() | |
375 | { | |
11fdf7f2 | 376 | std::lock_guard l(client_lock); |
7c673cae FG |
377 | root->ll_get(); |
378 | return root; | |
379 | } | |
380 | ||
381 | ||
382 | // debug crapola | |
383 | ||
384 | void Client::dump_inode(Formatter *f, Inode *in, set<Inode*>& did, bool disconnected) | |
385 | { | |
386 | filepath path; | |
387 | in->make_long_path(path); | |
388 | ldout(cct, 1) << "dump_inode: " | |
389 | << (disconnected ? "DISCONNECTED ":"") | |
390 | << "inode " << in->ino | |
391 | << " " << path | |
392 | << " ref " << in->get_num_ref() | |
393 | << *in << dendl; | |
394 | ||
395 | if (f) { | |
396 | f->open_object_section("inode"); | |
397 | f->dump_stream("path") << path; | |
398 | if (disconnected) | |
399 | f->dump_int("disconnected", 1); | |
400 | in->dump(f); | |
401 | f->close_section(); | |
402 | } | |
403 | ||
404 | did.insert(in); | |
405 | if (in->dir) { | |
406 | ldout(cct, 1) << " dir " << in->dir << " size " << in->dir->dentries.size() << dendl; | |
407 | for (ceph::unordered_map<string, Dentry*>::iterator it = in->dir->dentries.begin(); | |
408 | it != in->dir->dentries.end(); | |
409 | ++it) { | |
410 | ldout(cct, 1) << " " << in->ino << " dn " << it->first << " " << it->second << " ref " << it->second->ref << dendl; | |
411 | if (f) { | |
412 | f->open_object_section("dentry"); | |
413 | it->second->dump(f); | |
414 | f->close_section(); | |
415 | } | |
416 | if (it->second->inode) | |
417 | dump_inode(f, it->second->inode.get(), did, false); | |
418 | } | |
419 | } | |
420 | } | |
421 | ||
422 | void Client::dump_cache(Formatter *f) | |
423 | { | |
424 | set<Inode*> did; | |
425 | ||
11fdf7f2 | 426 | ldout(cct, 1) << __func__ << dendl; |
7c673cae FG |
427 | |
428 | if (f) | |
429 | f->open_array_section("cache"); | |
430 | ||
431 | if (root) | |
432 | dump_inode(f, root, did, true); | |
433 | ||
434 | // make a second pass to catch anything disconnected | |
435 | for (ceph::unordered_map<vinodeno_t, Inode*>::iterator it = inode_map.begin(); | |
436 | it != inode_map.end(); | |
437 | ++it) { | |
438 | if (did.count(it->second)) | |
439 | continue; | |
440 | dump_inode(f, it->second, did, true); | |
441 | } | |
442 | ||
443 | if (f) | |
444 | f->close_section(); | |
445 | } | |
446 | ||
447 | void Client::dump_status(Formatter *f) | |
448 | { | |
9f95a23c | 449 | ceph_assert(ceph_mutex_is_locked_by_me(client_lock)); |
7c673cae FG |
450 | |
451 | ldout(cct, 1) << __func__ << dendl; | |
452 | ||
453 | const epoch_t osd_epoch | |
454 | = objecter->with_osdmap(std::mem_fn(&OSDMap::get_epoch)); | |
455 | ||
456 | if (f) { | |
457 | f->open_object_section("metadata"); | |
458 | for (const auto& kv : metadata) | |
459 | f->dump_string(kv.first.c_str(), kv.second); | |
460 | f->close_section(); | |
461 | ||
462 | f->dump_int("dentry_count", lru.lru_get_size()); | |
463 | f->dump_int("dentry_pinned_count", lru.lru_get_num_pinned()); | |
464 | f->dump_int("id", get_nodeid().v); | |
11fdf7f2 | 465 | entity_inst_t inst(messenger->get_myname(), messenger->get_myaddr_legacy()); |
1adf2230 | 466 | f->dump_object("inst", inst); |
11fdf7f2 TL |
467 | f->dump_object("addr", inst.addr); |
468 | f->dump_stream("inst_str") << inst.name << " " << inst.addr.get_legacy_str(); | |
469 | f->dump_string("addr_str", inst.addr.get_legacy_str()); | |
7c673cae FG |
470 | f->dump_int("inode_count", inode_map.size()); |
471 | f->dump_int("mds_epoch", mdsmap->get_epoch()); | |
472 | f->dump_int("osd_epoch", osd_epoch); | |
473 | f->dump_int("osd_epoch_barrier", cap_epoch_barrier); | |
f64942e4 | 474 | f->dump_bool("blacklisted", blacklisted); |
adb31ebb | 475 | f->dump_string("fs_name", mdsmap->get_fs_name()); |
7c673cae FG |
476 | } |
477 | } | |
478 | ||
e306af50 | 479 | void Client::_pre_init() |
7c673cae FG |
480 | { |
481 | timer.init(); | |
e306af50 TL |
482 | |
483 | objecter_finisher.start(); | |
484 | filer.reset(new Filer(objecter, &objecter_finisher)); | |
485 | objecter->enable_blacklist_events(); | |
486 | ||
7c673cae | 487 | objectcacher->start(); |
e306af50 TL |
488 | } |
489 | ||
490 | int Client::init() | |
491 | { | |
492 | _pre_init(); | |
9f95a23c TL |
493 | { |
494 | std::lock_guard l{client_lock}; | |
495 | ceph_assert(!initialized); | |
496 | messenger->add_dispatcher_tail(this); | |
497 | } | |
7c673cae FG |
498 | _finish_init(); |
499 | return 0; | |
500 | } | |
501 | ||
502 | void Client::_finish_init() | |
503 | { | |
9f95a23c TL |
504 | { |
505 | std::lock_guard l{client_lock}; | |
506 | // logger | |
507 | PerfCountersBuilder plb(cct, "client", l_c_first, l_c_last); | |
508 | plb.add_time_avg(l_c_reply, "reply", "Latency of receiving a reply on metadata request"); | |
509 | plb.add_time_avg(l_c_lat, "lat", "Latency of processing a metadata request"); | |
510 | plb.add_time_avg(l_c_wrlat, "wrlat", "Latency of a file data write operation"); | |
511 | plb.add_time_avg(l_c_read, "rdlat", "Latency of a file data read operation"); | |
512 | plb.add_time_avg(l_c_fsync, "fsync", "Latency of a file sync operation"); | |
513 | logger.reset(plb.create_perf_counters()); | |
514 | cct->get_perfcounters_collection()->add(logger.get()); | |
515 | } | |
7c673cae | 516 | |
11fdf7f2 | 517 | cct->_conf.add_observer(this); |
7c673cae FG |
518 | |
519 | AdminSocket* admin_socket = cct->get_admin_socket(); | |
520 | int ret = admin_socket->register_command("mds_requests", | |
7c673cae FG |
521 | &m_command_hook, |
522 | "show in-progress mds requests"); | |
523 | if (ret < 0) { | |
524 | lderr(cct) << "error registering admin socket command: " | |
525 | << cpp_strerror(-ret) << dendl; | |
526 | } | |
adb31ebb TL |
527 | ret = admin_socket->register_command("mds_sessions " |
528 | "name=cap_dump,type=CephBool,req=false", | |
7c673cae FG |
529 | &m_command_hook, |
530 | "show mds session state"); | |
531 | if (ret < 0) { | |
532 | lderr(cct) << "error registering admin socket command: " | |
533 | << cpp_strerror(-ret) << dendl; | |
534 | } | |
535 | ret = admin_socket->register_command("dump_cache", | |
7c673cae FG |
536 | &m_command_hook, |
537 | "show in-memory metadata cache contents"); | |
538 | if (ret < 0) { | |
539 | lderr(cct) << "error registering admin socket command: " | |
540 | << cpp_strerror(-ret) << dendl; | |
541 | } | |
542 | ret = admin_socket->register_command("kick_stale_sessions", | |
7c673cae FG |
543 | &m_command_hook, |
544 | "kick sessions that were remote reset"); | |
545 | if (ret < 0) { | |
546 | lderr(cct) << "error registering admin socket command: " | |
547 | << cpp_strerror(-ret) << dendl; | |
548 | } | |
549 | ret = admin_socket->register_command("status", | |
7c673cae FG |
550 | &m_command_hook, |
551 | "show overall client status"); | |
552 | if (ret < 0) { | |
553 | lderr(cct) << "error registering admin socket command: " | |
554 | << cpp_strerror(-ret) << dendl; | |
555 | } | |
556 | ||
9f95a23c | 557 | std::lock_guard l{client_lock}; |
7c673cae | 558 | initialized = true; |
7c673cae FG |
559 | } |
560 | ||
561 | void Client::shutdown() | |
562 | { | |
11fdf7f2 | 563 | ldout(cct, 1) << __func__ << dendl; |
7c673cae FG |
564 | |
565 | // If we were not mounted, but were being used for sending | |
566 | // MDS commands, we may have sessions that need closing. | |
9f95a23c TL |
567 | { |
568 | std::lock_guard l{client_lock}; | |
569 | _close_sessions(); | |
570 | } | |
11fdf7f2 | 571 | cct->_conf.remove_observer(this); |
7c673cae | 572 | |
11fdf7f2 | 573 | cct->get_admin_socket()->unregister_commands(&m_command_hook); |
7c673cae FG |
574 | |
575 | if (ino_invalidate_cb) { | |
576 | ldout(cct, 10) << "shutdown stopping cache invalidator finisher" << dendl; | |
577 | async_ino_invalidator.wait_for_empty(); | |
578 | async_ino_invalidator.stop(); | |
579 | } | |
580 | ||
581 | if (dentry_invalidate_cb) { | |
582 | ldout(cct, 10) << "shutdown stopping dentry invalidator finisher" << dendl; | |
583 | async_dentry_invalidator.wait_for_empty(); | |
584 | async_dentry_invalidator.stop(); | |
585 | } | |
586 | ||
587 | if (switch_interrupt_cb) { | |
588 | ldout(cct, 10) << "shutdown stopping interrupt finisher" << dendl; | |
589 | interrupt_finisher.wait_for_empty(); | |
590 | interrupt_finisher.stop(); | |
591 | } | |
592 | ||
593 | if (remount_cb) { | |
594 | ldout(cct, 10) << "shutdown stopping remount finisher" << dendl; | |
595 | remount_finisher.wait_for_empty(); | |
596 | remount_finisher.stop(); | |
597 | } | |
598 | ||
e306af50 TL |
599 | if (ino_release_cb) { |
600 | ldout(cct, 10) << "shutdown stopping inode release finisher" << dendl; | |
601 | async_ino_releasor.wait_for_empty(); | |
602 | async_ino_releasor.stop(); | |
603 | } | |
604 | ||
7c673cae | 605 | objectcacher->stop(); // outside of client_lock! this does a join. |
9f95a23c TL |
606 | { |
607 | std::lock_guard l{client_lock}; | |
608 | ceph_assert(initialized); | |
609 | initialized = false; | |
610 | timer.shutdown(); | |
611 | } | |
7c673cae FG |
612 | objecter_finisher.wait_for_empty(); |
613 | objecter_finisher.stop(); | |
614 | ||
615 | if (logger) { | |
616 | cct->get_perfcounters_collection()->remove(logger.get()); | |
617 | logger.reset(); | |
618 | } | |
619 | } | |
620 | ||
621 | ||
622 | // =================== | |
623 | // metadata cache stuff | |
624 | ||
625 | void Client::trim_cache(bool trim_kernel_dcache) | |
626 | { | |
181888fb FG |
627 | uint64_t max = cct->_conf->client_cache_size; |
628 | ldout(cct, 20) << "trim_cache size " << lru.lru_get_size() << " max " << max << dendl; | |
7c673cae FG |
629 | unsigned last = 0; |
630 | while (lru.lru_get_size() != last) { | |
631 | last = lru.lru_get_size(); | |
632 | ||
181888fb | 633 | if (!unmounting && lru.lru_get_size() <= max) break; |
7c673cae FG |
634 | |
635 | // trim! | |
31f18b77 | 636 | Dentry *dn = static_cast<Dentry*>(lru.lru_get_next_expire()); |
7c673cae FG |
637 | if (!dn) |
638 | break; // done | |
639 | ||
640 | trim_dentry(dn); | |
641 | } | |
642 | ||
181888fb | 643 | if (trim_kernel_dcache && lru.lru_get_size() > max) |
7c673cae FG |
644 | _invalidate_kernel_dcache(); |
645 | ||
646 | // hose root? | |
647 | if (lru.lru_get_size() == 0 && root && root->get_num_ref() == 0 && inode_map.size() == 1 + root_parents.size()) { | |
648 | ldout(cct, 15) << "trim_cache trimmed root " << root << dendl; | |
649 | delete root; | |
650 | root = 0; | |
651 | root_ancestor = 0; | |
652 | while (!root_parents.empty()) | |
653 | root_parents.erase(root_parents.begin()); | |
654 | inode_map.clear(); | |
655 | _reset_faked_inos(); | |
656 | } | |
657 | } | |
658 | ||
659 | void Client::trim_cache_for_reconnect(MetaSession *s) | |
660 | { | |
661 | mds_rank_t mds = s->mds_num; | |
11fdf7f2 | 662 | ldout(cct, 20) << __func__ << " mds." << mds << dendl; |
7c673cae FG |
663 | |
664 | int trimmed = 0; | |
665 | list<Dentry*> skipped; | |
666 | while (lru.lru_get_size() > 0) { | |
667 | Dentry *dn = static_cast<Dentry*>(lru.lru_expire()); | |
668 | if (!dn) | |
669 | break; | |
670 | ||
671 | if ((dn->inode && dn->inode->caps.count(mds)) || | |
672 | dn->dir->parent_inode->caps.count(mds)) { | |
673 | trim_dentry(dn); | |
674 | trimmed++; | |
675 | } else | |
676 | skipped.push_back(dn); | |
677 | } | |
678 | ||
679 | for(list<Dentry*>::iterator p = skipped.begin(); p != skipped.end(); ++p) | |
680 | lru.lru_insert_mid(*p); | |
681 | ||
11fdf7f2 | 682 | ldout(cct, 20) << __func__ << " mds." << mds |
7c673cae FG |
683 | << " trimmed " << trimmed << " dentries" << dendl; |
684 | ||
685 | if (s->caps.size() > 0) | |
686 | _invalidate_kernel_dcache(); | |
687 | } | |
688 | ||
689 | void Client::trim_dentry(Dentry *dn) | |
690 | { | |
691 | ldout(cct, 15) << "trim_dentry unlinking dn " << dn->name | |
11fdf7f2 TL |
692 | << " in dir " |
693 | << std::hex << dn->dir->parent_inode->ino << std::dec | |
7c673cae FG |
694 | << dendl; |
695 | if (dn->inode) { | |
696 | Inode *diri = dn->dir->parent_inode; | |
7c673cae FG |
697 | clear_dir_complete_and_ordered(diri, true); |
698 | } | |
699 | unlink(dn, false, false); // drop dir, drop dentry | |
700 | } | |
701 | ||
702 | ||
1adf2230 AA |
703 | void Client::update_inode_file_size(Inode *in, int issued, uint64_t size, |
704 | uint64_t truncate_seq, uint64_t truncate_size) | |
7c673cae | 705 | { |
7c673cae FG |
706 | uint64_t prior_size = in->size; |
707 | ||
7c673cae FG |
708 | if (truncate_seq > in->truncate_seq || |
709 | (truncate_seq == in->truncate_seq && size > in->size)) { | |
710 | ldout(cct, 10) << "size " << in->size << " -> " << size << dendl; | |
711 | in->size = size; | |
712 | in->reported_size = size; | |
713 | if (truncate_seq != in->truncate_seq) { | |
714 | ldout(cct, 10) << "truncate_seq " << in->truncate_seq << " -> " | |
715 | << truncate_seq << dendl; | |
716 | in->truncate_seq = truncate_seq; | |
717 | in->oset.truncate_seq = truncate_seq; | |
718 | ||
719 | // truncate cached file data | |
720 | if (prior_size > size) { | |
721 | _invalidate_inode_cache(in, truncate_size, prior_size - truncate_size); | |
722 | } | |
723 | } | |
724 | ||
725 | // truncate inline data | |
726 | if (in->inline_version < CEPH_INLINE_NONE) { | |
727 | uint32_t len = in->inline_data.length(); | |
728 | if (size < len) | |
729 | in->inline_data.splice(size, len - size); | |
730 | } | |
731 | } | |
732 | if (truncate_seq >= in->truncate_seq && | |
733 | in->truncate_size != truncate_size) { | |
734 | if (in->is_file()) { | |
735 | ldout(cct, 10) << "truncate_size " << in->truncate_size << " -> " | |
736 | << truncate_size << dendl; | |
737 | in->truncate_size = truncate_size; | |
738 | in->oset.truncate_size = truncate_size; | |
739 | } else { | |
740 | ldout(cct, 0) << "Hmmm, truncate_seq && truncate_size changed on non-file inode!" << dendl; | |
741 | } | |
742 | } | |
1adf2230 AA |
743 | } |
744 | ||
745 | void Client::update_inode_file_time(Inode *in, int issued, uint64_t time_warp_seq, | |
746 | utime_t ctime, utime_t mtime, utime_t atime) | |
747 | { | |
748 | ldout(cct, 10) << __func__ << " " << *in << " " << ccap_string(issued) | |
749 | << " ctime " << ctime << " mtime " << mtime << dendl; | |
750 | ||
751 | if (time_warp_seq > in->time_warp_seq) | |
752 | ldout(cct, 10) << " mds time_warp_seq " << time_warp_seq | |
753 | << " is higher than local time_warp_seq " | |
754 | << in->time_warp_seq << dendl; | |
755 | ||
756 | int warn = false; | |
7c673cae FG |
757 | // be careful with size, mtime, atime |
758 | if (issued & (CEPH_CAP_FILE_EXCL| | |
759 | CEPH_CAP_FILE_WR| | |
760 | CEPH_CAP_FILE_BUFFER| | |
761 | CEPH_CAP_AUTH_EXCL| | |
762 | CEPH_CAP_XATTR_EXCL)) { | |
763 | ldout(cct, 30) << "Yay have enough caps to look at our times" << dendl; | |
764 | if (ctime > in->ctime) | |
765 | in->ctime = ctime; | |
766 | if (time_warp_seq > in->time_warp_seq) { | |
7c673cae FG |
767 | //the mds updated times, so take those! |
768 | in->mtime = mtime; | |
769 | in->atime = atime; | |
770 | in->time_warp_seq = time_warp_seq; | |
771 | } else if (time_warp_seq == in->time_warp_seq) { | |
772 | //take max times | |
773 | if (mtime > in->mtime) | |
774 | in->mtime = mtime; | |
775 | if (atime > in->atime) | |
776 | in->atime = atime; | |
777 | } else if (issued & CEPH_CAP_FILE_EXCL) { | |
778 | //ignore mds values as we have a higher seq | |
779 | } else warn = true; | |
780 | } else { | |
781 | ldout(cct, 30) << "Don't have enough caps, just taking mds' time values" << dendl; | |
782 | if (time_warp_seq >= in->time_warp_seq) { | |
783 | in->ctime = ctime; | |
784 | in->mtime = mtime; | |
785 | in->atime = atime; | |
786 | in->time_warp_seq = time_warp_seq; | |
787 | } else warn = true; | |
788 | } | |
789 | if (warn) { | |
790 | ldout(cct, 0) << "WARNING: " << *in << " mds time_warp_seq " | |
791 | << time_warp_seq << " is lower than local time_warp_seq " | |
792 | << in->time_warp_seq | |
793 | << dendl; | |
794 | } | |
795 | } | |
796 | ||
797 | void Client::_fragmap_remove_non_leaves(Inode *in) | |
798 | { | |
799 | for (map<frag_t,int>::iterator p = in->fragmap.begin(); p != in->fragmap.end(); ) | |
800 | if (!in->dirfragtree.is_leaf(p->first)) | |
801 | in->fragmap.erase(p++); | |
802 | else | |
803 | ++p; | |
804 | } | |
805 | ||
806 | void Client::_fragmap_remove_stopped_mds(Inode *in, mds_rank_t mds) | |
807 | { | |
808 | for (auto p = in->fragmap.begin(); p != in->fragmap.end(); ) | |
809 | if (p->second == mds) | |
810 | in->fragmap.erase(p++); | |
811 | else | |
812 | ++p; | |
813 | } | |
814 | ||
815 | Inode * Client::add_update_inode(InodeStat *st, utime_t from, | |
816 | MetaSession *session, | |
817 | const UserPerm& request_perms) | |
818 | { | |
819 | Inode *in; | |
820 | bool was_new = false; | |
821 | if (inode_map.count(st->vino)) { | |
822 | in = inode_map[st->vino]; | |
11fdf7f2 | 823 | ldout(cct, 12) << __func__ << " had " << *in << " caps " << ccap_string(st->cap.caps) << dendl; |
7c673cae FG |
824 | } else { |
825 | in = new Inode(this, st->vino, &st->layout); | |
826 | inode_map[st->vino] = in; | |
827 | ||
828 | if (use_faked_inos()) | |
829 | _assign_faked_ino(in); | |
830 | ||
831 | if (!root) { | |
832 | root = in; | |
11fdf7f2 TL |
833 | if (use_faked_inos()) |
834 | _assign_faked_root(root); | |
7c673cae FG |
835 | root_ancestor = in; |
836 | cwd = root; | |
837 | } else if (!mounted) { | |
838 | root_parents[root_ancestor] = in; | |
839 | root_ancestor = in; | |
840 | } | |
841 | ||
842 | // immutable bits | |
843 | in->ino = st->vino.ino; | |
844 | in->snapid = st->vino.snapid; | |
845 | in->mode = st->mode & S_IFMT; | |
846 | was_new = true; | |
847 | } | |
848 | ||
849 | in->rdev = st->rdev; | |
850 | if (in->is_symlink()) | |
851 | in->symlink = st->symlink; | |
852 | ||
7c673cae | 853 | // only update inode if mds info is strictly newer, or it is the same and projected (odd). |
1adf2230 AA |
854 | bool new_version = false; |
855 | if (in->version == 0 || | |
856 | ((st->cap.flags & CEPH_CAP_FLAG_AUTH) && | |
857 | (in->version & ~1) < st->version)) | |
858 | new_version = true; | |
7c673cae | 859 | |
1adf2230 AA |
860 | int issued; |
861 | in->caps_issued(&issued); | |
862 | issued |= in->caps_dirty(); | |
863 | int new_issued = ~issued & (int)st->cap.caps; | |
7c673cae | 864 | |
1adf2230 AA |
865 | if ((new_version || (new_issued & CEPH_CAP_AUTH_SHARED)) && |
866 | !(issued & CEPH_CAP_AUTH_EXCL)) { | |
867 | in->mode = st->mode; | |
868 | in->uid = st->uid; | |
869 | in->gid = st->gid; | |
870 | in->btime = st->btime; | |
81eedcae | 871 | in->snap_btime = st->snap_btime; |
1adf2230 | 872 | } |
7c673cae | 873 | |
1adf2230 AA |
874 | if ((new_version || (new_issued & CEPH_CAP_LINK_SHARED)) && |
875 | !(issued & CEPH_CAP_LINK_EXCL)) { | |
876 | in->nlink = st->nlink; | |
877 | } | |
7c673cae | 878 | |
1adf2230 AA |
879 | if (new_version || (new_issued & CEPH_CAP_ANY_RD)) { |
880 | update_inode_file_time(in, issued, st->time_warp_seq, | |
881 | st->ctime, st->mtime, st->atime); | |
882 | } | |
7c673cae | 883 | |
1adf2230 AA |
884 | if (new_version || |
885 | (new_issued & (CEPH_CAP_ANY_FILE_RD | CEPH_CAP_ANY_FILE_WR))) { | |
7c673cae | 886 | in->layout = st->layout; |
1adf2230 AA |
887 | update_inode_file_size(in, issued, st->size, st->truncate_seq, st->truncate_size); |
888 | } | |
7c673cae | 889 | |
1adf2230 AA |
890 | if (in->is_dir()) { |
891 | if (new_version || (new_issued & CEPH_CAP_FILE_SHARED)) { | |
892 | in->dirstat = st->dirstat; | |
893 | } | |
894 | // dir_layout/rstat/quota are not tracked by capability, update them only if | |
895 | // the inode stat is from auth mds | |
896 | if (new_version || (st->cap.flags & CEPH_CAP_FLAG_AUTH)) { | |
7c673cae FG |
897 | in->dir_layout = st->dir_layout; |
898 | ldout(cct, 20) << " dir hash is " << (int)in->dir_layout.dl_dir_hash << dendl; | |
1adf2230 AA |
899 | in->rstat = st->rstat; |
900 | in->quota = st->quota; | |
11fdf7f2 | 901 | in->dir_pin = st->dir_pin; |
1adf2230 AA |
902 | } |
903 | // move me if/when version reflects fragtree changes. | |
904 | if (in->dirfragtree != st->dirfragtree) { | |
905 | in->dirfragtree = st->dirfragtree; | |
906 | _fragmap_remove_non_leaves(in); | |
7c673cae | 907 | } |
7c673cae FG |
908 | } |
909 | ||
910 | if ((in->xattr_version == 0 || !(issued & CEPH_CAP_XATTR_EXCL)) && | |
911 | st->xattrbl.length() && | |
912 | st->xattr_version > in->xattr_version) { | |
11fdf7f2 TL |
913 | auto p = st->xattrbl.cbegin(); |
914 | decode(in->xattrs, p); | |
7c673cae FG |
915 | in->xattr_version = st->xattr_version; |
916 | } | |
917 | ||
1adf2230 AA |
918 | if (st->inline_version > in->inline_version) { |
919 | in->inline_data = st->inline_data; | |
920 | in->inline_version = st->inline_version; | |
7c673cae FG |
921 | } |
922 | ||
1adf2230 AA |
923 | /* always take a newer change attr */ |
924 | if (st->change_attr > in->change_attr) | |
925 | in->change_attr = st->change_attr; | |
926 | ||
927 | if (st->version > in->version) | |
928 | in->version = st->version; | |
929 | ||
930 | if (was_new) | |
931 | ldout(cct, 12) << __func__ << " adding " << *in << " caps " << ccap_string(st->cap.caps) << dendl; | |
932 | ||
933 | if (!st->cap.caps) | |
934 | return in; // as with readdir returning indoes in different snaprealms (no caps!) | |
935 | ||
7c673cae | 936 | if (in->snapid == CEPH_NOSNAP) { |
a8e16298 TL |
937 | add_update_cap(in, session, st->cap.cap_id, st->cap.caps, st->cap.wanted, |
938 | st->cap.seq, st->cap.mseq, inodeno_t(st->cap.realm), | |
939 | st->cap.flags, request_perms); | |
28e407b8 | 940 | if (in->auth_cap && in->auth_cap->session == session) { |
7c673cae | 941 | in->max_size = st->max_size; |
28e407b8 AA |
942 | in->rstat = st->rstat; |
943 | } | |
7c673cae | 944 | |
1adf2230 AA |
945 | // setting I_COMPLETE needs to happen after adding the cap |
946 | if (in->is_dir() && | |
947 | (st->cap.caps & CEPH_CAP_FILE_SHARED) && | |
948 | (issued & CEPH_CAP_FILE_EXCL) == 0 && | |
949 | in->dirstat.nfiles == 0 && | |
950 | in->dirstat.nsubdirs == 0) { | |
951 | ldout(cct, 10) << " marking (I_COMPLETE|I_DIR_ORDERED) on empty dir " << *in << dendl; | |
952 | in->flags |= I_COMPLETE | I_DIR_ORDERED; | |
953 | if (in->dir) { | |
954 | ldout(cct, 10) << " dir is open on empty dir " << in->ino << " with " | |
955 | << in->dir->dentries.size() << " entries, marking all dentries null" << dendl; | |
956 | in->dir->readdir_cache.clear(); | |
957 | for (const auto& p : in->dir->dentries) { | |
958 | unlink(p.second, true, true); // keep dir, keep dentry | |
959 | } | |
960 | if (in->dir->dentries.empty()) | |
961 | close_dir(in->dir); | |
7c673cae | 962 | } |
7c673cae | 963 | } |
1adf2230 AA |
964 | } else { |
965 | in->snap_caps |= st->cap.caps; | |
7c673cae FG |
966 | } |
967 | ||
968 | return in; | |
969 | } | |
970 | ||
971 | ||
972 | /* | |
973 | * insert_dentry_inode - insert + link a single dentry + inode into the metadata cache. | |
974 | */ | |
975 | Dentry *Client::insert_dentry_inode(Dir *dir, const string& dname, LeaseStat *dlease, | |
976 | Inode *in, utime_t from, MetaSession *session, | |
977 | Dentry *old_dentry) | |
978 | { | |
979 | Dentry *dn = NULL; | |
980 | if (dir->dentries.count(dname)) | |
981 | dn = dir->dentries[dname]; | |
982 | ||
11fdf7f2 | 983 | ldout(cct, 12) << __func__ << " '" << dname << "' vino " << in->vino() |
7c673cae FG |
984 | << " in dir " << dir->parent_inode->vino() << " dn " << dn |
985 | << dendl; | |
986 | ||
987 | if (dn && dn->inode) { | |
988 | if (dn->inode->vino() == in->vino()) { | |
989 | touch_dn(dn); | |
990 | ldout(cct, 12) << " had dentry " << dname | |
991 | << " with correct vino " << dn->inode->vino() | |
992 | << dendl; | |
993 | } else { | |
994 | ldout(cct, 12) << " had dentry " << dname | |
995 | << " with WRONG vino " << dn->inode->vino() | |
996 | << dendl; | |
997 | unlink(dn, true, true); // keep dir, keep dentry | |
998 | } | |
999 | } | |
1000 | ||
1001 | if (!dn || !dn->inode) { | |
1002 | InodeRef tmp_ref(in); | |
1003 | if (old_dentry) { | |
1004 | if (old_dentry->dir != dir) { | |
1005 | Inode *old_diri = old_dentry->dir->parent_inode; | |
7c673cae FG |
1006 | clear_dir_complete_and_ordered(old_diri, false); |
1007 | } | |
1008 | unlink(old_dentry, dir == old_dentry->dir, false); // drop dentry, keep dir open if its the same dir | |
1009 | } | |
1010 | Inode *diri = dir->parent_inode; | |
7c673cae FG |
1011 | clear_dir_complete_and_ordered(diri, false); |
1012 | dn = link(dir, dname, in, dn); | |
1013 | } | |
1014 | ||
1015 | update_dentry_lease(dn, dlease, from, session); | |
1016 | return dn; | |
1017 | } | |
1018 | ||
1019 | void Client::update_dentry_lease(Dentry *dn, LeaseStat *dlease, utime_t from, MetaSession *session) | |
1020 | { | |
1021 | utime_t dttl = from; | |
1022 | dttl += (float)dlease->duration_ms / 1000.0; | |
1023 | ||
11fdf7f2 | 1024 | ceph_assert(dn); |
7c673cae | 1025 | |
9f95a23c | 1026 | if (dlease->mask & CEPH_LEASE_VALID) { |
7c673cae FG |
1027 | if (dttl > dn->lease_ttl) { |
1028 | ldout(cct, 10) << "got dentry lease on " << dn->name | |
1029 | << " dur " << dlease->duration_ms << "ms ttl " << dttl << dendl; | |
1030 | dn->lease_ttl = dttl; | |
1031 | dn->lease_mds = session->mds_num; | |
1032 | dn->lease_seq = dlease->seq; | |
1033 | dn->lease_gen = session->cap_gen; | |
1034 | } | |
1035 | } | |
1036 | dn->cap_shared_gen = dn->dir->parent_inode->shared_gen; | |
f91f0fd5 TL |
1037 | if (dlease->mask & CEPH_LEASE_PRIMARY_LINK) |
1038 | dn->mark_primary(); | |
7c673cae FG |
1039 | } |
1040 | ||
1041 | ||
1042 | /* | |
1043 | * update MDS location cache for a single inode | |
1044 | */ | |
1045 | void Client::update_dir_dist(Inode *in, DirStat *dst) | |
1046 | { | |
1047 | // auth | |
1048 | ldout(cct, 20) << "got dirfrag map for " << in->ino << " frag " << dst->frag << " to mds " << dst->auth << dendl; | |
1049 | if (dst->auth >= 0) { | |
1050 | in->fragmap[dst->frag] = dst->auth; | |
1051 | } else { | |
1052 | in->fragmap.erase(dst->frag); | |
1053 | } | |
1054 | if (!in->dirfragtree.is_leaf(dst->frag)) { | |
1055 | in->dirfragtree.force_to_leaf(cct, dst->frag); | |
1056 | _fragmap_remove_non_leaves(in); | |
1057 | } | |
1058 | ||
1059 | // replicated | |
1060 | in->dir_replicated = !dst->dist.empty(); // FIXME that's just one frag! | |
7c673cae FG |
1061 | } |
1062 | ||
1063 | void Client::clear_dir_complete_and_ordered(Inode *diri, bool complete) | |
1064 | { | |
f91f0fd5 TL |
1065 | if (complete) |
1066 | diri->dir_release_count++; | |
1067 | else | |
1068 | diri->dir_ordered_count++; | |
7c673cae FG |
1069 | if (diri->flags & I_COMPLETE) { |
1070 | if (complete) { | |
1071 | ldout(cct, 10) << " clearing (I_COMPLETE|I_DIR_ORDERED) on " << *diri << dendl; | |
1072 | diri->flags &= ~(I_COMPLETE | I_DIR_ORDERED); | |
1073 | } else { | |
1074 | if (diri->flags & I_DIR_ORDERED) { | |
1075 | ldout(cct, 10) << " clearing I_DIR_ORDERED on " << *diri << dendl; | |
1076 | diri->flags &= ~I_DIR_ORDERED; | |
1077 | } | |
1078 | } | |
1079 | if (diri->dir) | |
1080 | diri->dir->readdir_cache.clear(); | |
1081 | } | |
1082 | } | |
1083 | ||
1084 | /* | |
1085 | * insert results from readdir or lssnap into the metadata cache. | |
1086 | */ | |
1087 | void Client::insert_readdir_results(MetaRequest *request, MetaSession *session, Inode *diri) { | |
1088 | ||
11fdf7f2 | 1089 | auto& reply = request->reply; |
7c673cae | 1090 | ConnectionRef con = request->reply->get_connection(); |
11fdf7f2 TL |
1091 | uint64_t features; |
1092 | if(session->mds_features.test(CEPHFS_FEATURE_REPLY_ENCODING)) { | |
1093 | features = (uint64_t)-1; | |
1094 | } | |
1095 | else { | |
1096 | features = con->get_features(); | |
1097 | } | |
7c673cae FG |
1098 | |
1099 | dir_result_t *dirp = request->dirp; | |
11fdf7f2 | 1100 | ceph_assert(dirp); |
7c673cae FG |
1101 | |
1102 | // the extra buffer list is only set for readdir and lssnap replies | |
11fdf7f2 | 1103 | auto p = reply->get_extra_bl().cbegin(); |
7c673cae FG |
1104 | if (!p.end()) { |
1105 | // snapdir? | |
1106 | if (request->head.op == CEPH_MDS_OP_LSSNAP) { | |
11fdf7f2 | 1107 | ceph_assert(diri); |
7c673cae FG |
1108 | diri = open_snapdir(diri); |
1109 | } | |
1110 | ||
1111 | // only open dir if we're actually adding stuff to it! | |
1112 | Dir *dir = diri->open_dir(); | |
11fdf7f2 | 1113 | ceph_assert(dir); |
7c673cae FG |
1114 | |
1115 | // dirstat | |
11fdf7f2 | 1116 | DirStat dst(p, features); |
7c673cae FG |
1117 | __u32 numdn; |
1118 | __u16 flags; | |
11fdf7f2 TL |
1119 | decode(numdn, p); |
1120 | decode(flags, p); | |
7c673cae FG |
1121 | |
1122 | bool end = ((unsigned)flags & CEPH_READDIR_FRAG_END); | |
1123 | bool hash_order = ((unsigned)flags & CEPH_READDIR_HASH_ORDER); | |
1124 | ||
1125 | frag_t fg = (unsigned)request->head.args.readdir.frag; | |
1126 | unsigned readdir_offset = dirp->next_offset; | |
1127 | string readdir_start = dirp->last_name; | |
11fdf7f2 | 1128 | ceph_assert(!readdir_start.empty() || readdir_offset == 2); |
7c673cae FG |
1129 | |
1130 | unsigned last_hash = 0; | |
1131 | if (hash_order) { | |
1132 | if (!readdir_start.empty()) { | |
1133 | last_hash = ceph_frag_value(diri->hash_dentry_name(readdir_start)); | |
1134 | } else if (flags & CEPH_READDIR_OFFSET_HASH) { | |
1135 | /* mds understands offset_hash */ | |
1136 | last_hash = (unsigned)request->head.args.readdir.offset_hash; | |
1137 | } | |
1138 | } | |
1139 | ||
1140 | if (fg != dst.frag) { | |
1141 | ldout(cct, 10) << "insert_trace got new frag " << fg << " -> " << dst.frag << dendl; | |
1142 | fg = dst.frag; | |
1143 | if (!hash_order) { | |
1144 | readdir_offset = 2; | |
1145 | readdir_start.clear(); | |
1146 | dirp->offset = dir_result_t::make_fpos(fg, readdir_offset, false); | |
1147 | } | |
1148 | } | |
1149 | ||
1150 | ldout(cct, 10) << __func__ << " " << numdn << " readdir items, end=" << end | |
1151 | << ", hash_order=" << hash_order | |
1152 | << ", readdir_start " << readdir_start | |
1153 | << ", last_hash " << last_hash | |
1154 | << ", next_offset " << readdir_offset << dendl; | |
1155 | ||
1156 | if (diri->snapid != CEPH_SNAPDIR && | |
1157 | fg.is_leftmost() && readdir_offset == 2 && | |
1158 | !(hash_order && last_hash)) { | |
1159 | dirp->release_count = diri->dir_release_count; | |
1160 | dirp->ordered_count = diri->dir_ordered_count; | |
1161 | dirp->start_shared_gen = diri->shared_gen; | |
1162 | dirp->cache_index = 0; | |
1163 | } | |
1164 | ||
1165 | dirp->buffer_frag = fg; | |
1166 | ||
1167 | _readdir_drop_dirp_buffer(dirp); | |
1168 | dirp->buffer.reserve(numdn); | |
1169 | ||
1170 | string dname; | |
1171 | LeaseStat dlease; | |
1172 | for (unsigned i=0; i<numdn; i++) { | |
11fdf7f2 TL |
1173 | decode(dname, p); |
1174 | dlease.decode(p, features); | |
7c673cae FG |
1175 | InodeStat ist(p, features); |
1176 | ||
1177 | ldout(cct, 15) << "" << i << ": '" << dname << "'" << dendl; | |
1178 | ||
1179 | Inode *in = add_update_inode(&ist, request->sent_stamp, session, | |
1180 | request->perms); | |
1181 | Dentry *dn; | |
1182 | if (diri->dir->dentries.count(dname)) { | |
1183 | Dentry *olddn = diri->dir->dentries[dname]; | |
1184 | if (olddn->inode != in) { | |
1185 | // replace incorrect dentry | |
1186 | unlink(olddn, true, true); // keep dir, dentry | |
1187 | dn = link(dir, dname, in, olddn); | |
11fdf7f2 | 1188 | ceph_assert(dn == olddn); |
7c673cae FG |
1189 | } else { |
1190 | // keep existing dn | |
1191 | dn = olddn; | |
1192 | touch_dn(dn); | |
1193 | } | |
1194 | } else { | |
1195 | // new dn | |
1196 | dn = link(dir, dname, in, NULL); | |
1197 | } | |
1198 | ||
1199 | update_dentry_lease(dn, &dlease, request->sent_stamp, session); | |
1200 | if (hash_order) { | |
1201 | unsigned hash = ceph_frag_value(diri->hash_dentry_name(dname)); | |
1202 | if (hash != last_hash) | |
1203 | readdir_offset = 2; | |
1204 | last_hash = hash; | |
1205 | dn->offset = dir_result_t::make_fpos(hash, readdir_offset++, true); | |
1206 | } else { | |
1207 | dn->offset = dir_result_t::make_fpos(fg, readdir_offset++, false); | |
1208 | } | |
1209 | // add to readdir cache | |
1210 | if (dirp->release_count == diri->dir_release_count && | |
1211 | dirp->ordered_count == diri->dir_ordered_count && | |
1212 | dirp->start_shared_gen == diri->shared_gen) { | |
1213 | if (dirp->cache_index == dir->readdir_cache.size()) { | |
1214 | if (i == 0) { | |
11fdf7f2 | 1215 | ceph_assert(!dirp->inode->is_complete_and_ordered()); |
7c673cae FG |
1216 | dir->readdir_cache.reserve(dirp->cache_index + numdn); |
1217 | } | |
1218 | dir->readdir_cache.push_back(dn); | |
1219 | } else if (dirp->cache_index < dir->readdir_cache.size()) { | |
1220 | if (dirp->inode->is_complete_and_ordered()) | |
11fdf7f2 | 1221 | ceph_assert(dir->readdir_cache[dirp->cache_index] == dn); |
7c673cae FG |
1222 | else |
1223 | dir->readdir_cache[dirp->cache_index] = dn; | |
1224 | } else { | |
11fdf7f2 | 1225 | ceph_abort_msg("unexpected readdir buffer idx"); |
7c673cae FG |
1226 | } |
1227 | dirp->cache_index++; | |
1228 | } | |
1229 | // add to cached result list | |
1230 | dirp->buffer.push_back(dir_result_t::dentry(dn->offset, dname, in)); | |
1231 | ldout(cct, 15) << __func__ << " " << hex << dn->offset << dec << ": '" << dname << "' -> " << in->ino << dendl; | |
1232 | } | |
1233 | ||
1234 | if (numdn > 0) | |
1235 | dirp->last_name = dname; | |
1236 | if (end) | |
1237 | dirp->next_offset = 2; | |
1238 | else | |
1239 | dirp->next_offset = readdir_offset; | |
1240 | ||
1241 | if (dir->is_empty()) | |
1242 | close_dir(dir); | |
1243 | } | |
1244 | } | |
1245 | ||
1246 | /** insert_trace | |
1247 | * | |
1248 | * insert a trace from a MDS reply into the cache. | |
1249 | */ | |
1250 | Inode* Client::insert_trace(MetaRequest *request, MetaSession *session) | |
1251 | { | |
11fdf7f2 | 1252 | auto& reply = request->reply; |
7c673cae FG |
1253 | int op = request->get_op(); |
1254 | ||
1255 | ldout(cct, 10) << "insert_trace from " << request->sent_stamp << " mds." << session->mds_num | |
1256 | << " is_target=" << (int)reply->head.is_target | |
1257 | << " is_dentry=" << (int)reply->head.is_dentry | |
1258 | << dendl; | |
1259 | ||
11fdf7f2 | 1260 | auto p = reply->get_trace_bl().cbegin(); |
7c673cae FG |
1261 | if (request->got_unsafe) { |
1262 | ldout(cct, 10) << "insert_trace -- already got unsafe; ignoring" << dendl; | |
11fdf7f2 | 1263 | ceph_assert(p.end()); |
7c673cae FG |
1264 | return NULL; |
1265 | } | |
1266 | ||
1267 | if (p.end()) { | |
1268 | ldout(cct, 10) << "insert_trace -- no trace" << dendl; | |
1269 | ||
1270 | Dentry *d = request->dentry(); | |
1271 | if (d) { | |
1272 | Inode *diri = d->dir->parent_inode; | |
7c673cae FG |
1273 | clear_dir_complete_and_ordered(diri, true); |
1274 | } | |
1275 | ||
1276 | if (d && reply->get_result() == 0) { | |
1277 | if (op == CEPH_MDS_OP_RENAME) { | |
1278 | // rename | |
1279 | Dentry *od = request->old_dentry(); | |
1280 | ldout(cct, 10) << " unlinking rename src dn " << od << " for traceless reply" << dendl; | |
11fdf7f2 | 1281 | ceph_assert(od); |
7c673cae FG |
1282 | unlink(od, true, true); // keep dir, dentry |
1283 | } else if (op == CEPH_MDS_OP_RMDIR || | |
1284 | op == CEPH_MDS_OP_UNLINK) { | |
1285 | // unlink, rmdir | |
1286 | ldout(cct, 10) << " unlinking unlink/rmdir dn " << d << " for traceless reply" << dendl; | |
1287 | unlink(d, true, true); // keep dir, dentry | |
1288 | } | |
1289 | } | |
1290 | return NULL; | |
1291 | } | |
1292 | ||
1293 | ConnectionRef con = request->reply->get_connection(); | |
11fdf7f2 TL |
1294 | uint64_t features; |
1295 | if (session->mds_features.test(CEPHFS_FEATURE_REPLY_ENCODING)) { | |
1296 | features = (uint64_t)-1; | |
1297 | } | |
1298 | else { | |
1299 | features = con->get_features(); | |
1300 | } | |
7c673cae FG |
1301 | ldout(cct, 10) << " features 0x" << hex << features << dec << dendl; |
1302 | ||
1303 | // snap trace | |
1304 | SnapRealm *realm = NULL; | |
1305 | if (reply->snapbl.length()) | |
1306 | update_snap_trace(reply->snapbl, &realm); | |
1307 | ||
1308 | ldout(cct, 10) << " hrm " | |
1309 | << " is_target=" << (int)reply->head.is_target | |
1310 | << " is_dentry=" << (int)reply->head.is_dentry | |
1311 | << dendl; | |
1312 | ||
1313 | InodeStat dirst; | |
1314 | DirStat dst; | |
1315 | string dname; | |
1316 | LeaseStat dlease; | |
1317 | InodeStat ist; | |
1318 | ||
1319 | if (reply->head.is_dentry) { | |
1320 | dirst.decode(p, features); | |
11fdf7f2 TL |
1321 | dst.decode(p, features); |
1322 | decode(dname, p); | |
1323 | dlease.decode(p, features); | |
7c673cae FG |
1324 | } |
1325 | ||
1326 | Inode *in = 0; | |
1327 | if (reply->head.is_target) { | |
1328 | ist.decode(p, features); | |
1329 | if (cct->_conf->client_debug_getattr_caps) { | |
1330 | unsigned wanted = 0; | |
1331 | if (op == CEPH_MDS_OP_GETATTR || op == CEPH_MDS_OP_LOOKUP) | |
1332 | wanted = request->head.args.getattr.mask; | |
1333 | else if (op == CEPH_MDS_OP_OPEN || op == CEPH_MDS_OP_CREATE) | |
1334 | wanted = request->head.args.open.mask; | |
1335 | ||
1336 | if ((wanted & CEPH_CAP_XATTR_SHARED) && | |
1337 | !(ist.xattr_version > 0 && ist.xattrbl.length() > 0)) | |
11fdf7f2 | 1338 | ceph_abort_msg("MDS reply does not contain xattrs"); |
7c673cae FG |
1339 | } |
1340 | ||
1341 | in = add_update_inode(&ist, request->sent_stamp, session, | |
1342 | request->perms); | |
1343 | } | |
1344 | ||
1345 | Inode *diri = NULL; | |
1346 | if (reply->head.is_dentry) { | |
1347 | diri = add_update_inode(&dirst, request->sent_stamp, session, | |
1348 | request->perms); | |
1349 | update_dir_dist(diri, &dst); // dir stat info is attached to .. | |
1350 | ||
1351 | if (in) { | |
1352 | Dir *dir = diri->open_dir(); | |
1353 | insert_dentry_inode(dir, dname, &dlease, in, request->sent_stamp, session, | |
1354 | (op == CEPH_MDS_OP_RENAME) ? request->old_dentry() : NULL); | |
1355 | } else { | |
1356 | Dentry *dn = NULL; | |
1357 | if (diri->dir && diri->dir->dentries.count(dname)) { | |
1358 | dn = diri->dir->dentries[dname]; | |
1359 | if (dn->inode) { | |
7c673cae FG |
1360 | clear_dir_complete_and_ordered(diri, false); |
1361 | unlink(dn, true, true); // keep dir, dentry | |
1362 | } | |
1363 | } | |
1364 | if (dlease.duration_ms > 0) { | |
1365 | if (!dn) { | |
1366 | Dir *dir = diri->open_dir(); | |
1367 | dn = link(dir, dname, NULL, NULL); | |
1368 | } | |
1369 | update_dentry_lease(dn, &dlease, request->sent_stamp, session); | |
1370 | } | |
1371 | } | |
1372 | } else if (op == CEPH_MDS_OP_LOOKUPSNAP || | |
1373 | op == CEPH_MDS_OP_MKSNAP) { | |
1374 | ldout(cct, 10) << " faking snap lookup weirdness" << dendl; | |
1375 | // fake it for snap lookup | |
1376 | vinodeno_t vino = ist.vino; | |
1377 | vino.snapid = CEPH_SNAPDIR; | |
11fdf7f2 | 1378 | ceph_assert(inode_map.count(vino)); |
7c673cae FG |
1379 | diri = inode_map[vino]; |
1380 | ||
1381 | string dname = request->path.last_dentry(); | |
1382 | ||
1383 | LeaseStat dlease; | |
1384 | dlease.duration_ms = 0; | |
1385 | ||
1386 | if (in) { | |
1387 | Dir *dir = diri->open_dir(); | |
1388 | insert_dentry_inode(dir, dname, &dlease, in, request->sent_stamp, session); | |
1389 | } else { | |
1390 | if (diri->dir && diri->dir->dentries.count(dname)) { | |
1391 | Dentry *dn = diri->dir->dentries[dname]; | |
1392 | if (dn->inode) | |
1393 | unlink(dn, true, true); // keep dir, dentry | |
1394 | } | |
1395 | } | |
1396 | } | |
1397 | ||
1398 | if (in) { | |
1399 | if (op == CEPH_MDS_OP_READDIR || | |
1400 | op == CEPH_MDS_OP_LSSNAP) { | |
1401 | insert_readdir_results(request, session, in); | |
1402 | } else if (op == CEPH_MDS_OP_LOOKUPNAME) { | |
1403 | // hack: return parent inode instead | |
1404 | in = diri; | |
1405 | } | |
1406 | ||
1407 | if (request->dentry() == NULL && in != request->inode()) { | |
1408 | // pin the target inode if its parent dentry is not pinned | |
1409 | request->set_other_inode(in); | |
1410 | } | |
1411 | } | |
1412 | ||
1413 | if (realm) | |
1414 | put_snap_realm(realm); | |
1415 | ||
1416 | request->target = in; | |
1417 | return in; | |
1418 | } | |
1419 | ||
1420 | // ------- | |
1421 | ||
1422 | mds_rank_t Client::choose_target_mds(MetaRequest *req, Inode** phash_diri) | |
1423 | { | |
1424 | mds_rank_t mds = MDS_RANK_NONE; | |
1425 | __u32 hash = 0; | |
1426 | bool is_hash = false; | |
1427 | ||
1428 | Inode *in = NULL; | |
1429 | Dentry *de = NULL; | |
7c673cae FG |
1430 | |
1431 | if (req->resend_mds >= 0) { | |
1432 | mds = req->resend_mds; | |
1433 | req->resend_mds = -1; | |
11fdf7f2 | 1434 | ldout(cct, 10) << __func__ << " resend_mds specified as mds." << mds << dendl; |
7c673cae FG |
1435 | goto out; |
1436 | } | |
1437 | ||
1438 | if (cct->_conf->client_use_random_mds) | |
1439 | goto random_mds; | |
1440 | ||
1441 | in = req->inode(); | |
1442 | de = req->dentry(); | |
1443 | if (in) { | |
11fdf7f2 | 1444 | ldout(cct, 20) << __func__ << " starting with req->inode " << *in << dendl; |
7c673cae FG |
1445 | if (req->path.depth()) { |
1446 | hash = in->hash_dentry_name(req->path[0]); | |
11fdf7f2 | 1447 | ldout(cct, 20) << __func__ << " inode dir hash is " << (int)in->dir_layout.dl_dir_hash |
7c673cae FG |
1448 | << " on " << req->path[0] |
1449 | << " => " << hash << dendl; | |
1450 | is_hash = true; | |
1451 | } | |
1452 | } else if (de) { | |
1453 | if (de->inode) { | |
1454 | in = de->inode.get(); | |
11fdf7f2 | 1455 | ldout(cct, 20) << __func__ << " starting with req->dentry inode " << *in << dendl; |
7c673cae FG |
1456 | } else { |
1457 | in = de->dir->parent_inode; | |
1458 | hash = in->hash_dentry_name(de->name); | |
11fdf7f2 | 1459 | ldout(cct, 20) << __func__ << " dentry dir hash is " << (int)in->dir_layout.dl_dir_hash |
7c673cae FG |
1460 | << " on " << de->name |
1461 | << " => " << hash << dendl; | |
1462 | is_hash = true; | |
1463 | } | |
1464 | } | |
1465 | if (in) { | |
1466 | if (in->snapid != CEPH_NOSNAP) { | |
11fdf7f2 | 1467 | ldout(cct, 10) << __func__ << " " << *in << " is snapped, using nonsnap parent" << dendl; |
7c673cae FG |
1468 | while (in->snapid != CEPH_NOSNAP) { |
1469 | if (in->snapid == CEPH_SNAPDIR) | |
1470 | in = in->snapdir_parent.get(); | |
11fdf7f2 | 1471 | else if (!in->dentries.empty()) |
7c673cae FG |
1472 | /* In most cases there will only be one dentry, so getting it |
1473 | * will be the correct action. If there are multiple hard links, | |
1474 | * I think the MDS should be able to redirect as needed*/ | |
1475 | in = in->get_first_parent()->dir->parent_inode; | |
1476 | else { | |
1477 | ldout(cct, 10) << "got unlinked inode, can't look at parent" << dendl; | |
1478 | break; | |
1479 | } | |
1480 | } | |
1481 | is_hash = false; | |
1482 | } | |
1483 | ||
11fdf7f2 | 1484 | ldout(cct, 20) << __func__ << " " << *in << " is_hash=" << is_hash |
7c673cae FG |
1485 | << " hash=" << hash << dendl; |
1486 | ||
1487 | if (is_hash && S_ISDIR(in->mode) && !in->fragmap.empty()) { | |
1488 | frag_t fg = in->dirfragtree[hash]; | |
1489 | if (in->fragmap.count(fg)) { | |
1490 | mds = in->fragmap[fg]; | |
1491 | if (phash_diri) | |
1492 | *phash_diri = in; | |
91327a77 AA |
1493 | } else if (in->auth_cap) { |
1494 | mds = in->auth_cap->session->mds_num; | |
1495 | } | |
1496 | if (mds >= 0) { | |
11fdf7f2 | 1497 | ldout(cct, 10) << __func__ << " from dirfragtree hash" << dendl; |
7c673cae FG |
1498 | goto out; |
1499 | } | |
1500 | } | |
1501 | ||
11fdf7f2 TL |
1502 | if (in->auth_cap && req->auth_is_best()) { |
1503 | mds = in->auth_cap->session->mds_num; | |
1504 | } else if (!in->caps.empty()) { | |
1505 | mds = in->caps.begin()->second.session->mds_num; | |
1506 | } else { | |
7c673cae | 1507 | goto random_mds; |
11fdf7f2 TL |
1508 | } |
1509 | ldout(cct, 10) << __func__ << " from caps on inode " << *in << dendl; | |
7c673cae FG |
1510 | |
1511 | goto out; | |
1512 | } | |
1513 | ||
1514 | random_mds: | |
1515 | if (mds < 0) { | |
1516 | mds = _get_random_up_mds(); | |
1517 | ldout(cct, 10) << "did not get mds through better means, so chose random mds " << mds << dendl; | |
1518 | } | |
1519 | ||
1520 | out: | |
1521 | ldout(cct, 20) << "mds is " << mds << dendl; | |
1522 | return mds; | |
1523 | } | |
1524 | ||
1525 | ||
1526 | void Client::connect_mds_targets(mds_rank_t mds) | |
1527 | { | |
11fdf7f2 TL |
1528 | ldout(cct, 10) << __func__ << " for mds." << mds << dendl; |
1529 | ceph_assert(mds_sessions.count(mds)); | |
7c673cae FG |
1530 | const MDSMap::mds_info_t& info = mdsmap->get_mds_info(mds); |
1531 | for (set<mds_rank_t>::const_iterator q = info.export_targets.begin(); | |
1532 | q != info.export_targets.end(); | |
1533 | ++q) { | |
1534 | if (mds_sessions.count(*q) == 0 && | |
1535 | mdsmap->is_clientreplay_or_active_or_stopping(*q)) { | |
1536 | ldout(cct, 10) << "check_mds_sessions opening mds." << mds | |
1537 | << " export target mds." << *q << dendl; | |
1538 | _open_mds_session(*q); | |
1539 | } | |
1540 | } | |
1541 | } | |
1542 | ||
adb31ebb | 1543 | void Client::dump_mds_sessions(Formatter *f, bool cap_dump) |
7c673cae FG |
1544 | { |
1545 | f->dump_int("id", get_nodeid().v); | |
11fdf7f2 | 1546 | entity_inst_t inst(messenger->get_myname(), messenger->get_myaddr_legacy()); |
1adf2230 AA |
1547 | f->dump_object("inst", inst); |
1548 | f->dump_stream("inst_str") << inst; | |
1549 | f->dump_stream("addr_str") << inst.addr; | |
7c673cae | 1550 | f->open_array_section("sessions"); |
11fdf7f2 | 1551 | for (const auto &p : mds_sessions) { |
7c673cae | 1552 | f->open_object_section("session"); |
adb31ebb | 1553 | p.second.dump(f, cap_dump); |
7c673cae FG |
1554 | f->close_section(); |
1555 | } | |
1556 | f->close_section(); | |
1557 | f->dump_int("mdsmap_epoch", mdsmap->get_epoch()); | |
1558 | } | |
1559 | void Client::dump_mds_requests(Formatter *f) | |
1560 | { | |
1561 | for (map<ceph_tid_t, MetaRequest*>::iterator p = mds_requests.begin(); | |
1562 | p != mds_requests.end(); | |
1563 | ++p) { | |
1564 | f->open_object_section("request"); | |
1565 | p->second->dump(f); | |
1566 | f->close_section(); | |
1567 | } | |
1568 | } | |
1569 | ||
9f95a23c | 1570 | int Client::verify_reply_trace(int r, MetaSession *session, |
11fdf7f2 | 1571 | MetaRequest *request, const MConstRef<MClientReply>& reply, |
7c673cae FG |
1572 | InodeRef *ptarget, bool *pcreated, |
1573 | const UserPerm& perms) | |
1574 | { | |
1575 | // check whether this request actually did the create, and set created flag | |
1576 | bufferlist extra_bl; | |
1577 | inodeno_t created_ino; | |
1578 | bool got_created_ino = false; | |
1579 | ceph::unordered_map<vinodeno_t, Inode*>::iterator p; | |
1580 | ||
11fdf7f2 | 1581 | extra_bl = reply->get_extra_bl(); |
7c673cae | 1582 | if (extra_bl.length() >= 8) { |
9f95a23c TL |
1583 | if (session->mds_features.test(CEPHFS_FEATURE_DELEG_INO)) { |
1584 | struct openc_response_t ocres; | |
1585 | ||
1586 | decode(ocres, extra_bl); | |
1587 | created_ino = ocres.created_ino; | |
1588 | /* | |
1589 | * The userland cephfs client doesn't have a way to do an async create | |
1590 | * (yet), so just discard delegated_inos for now. Eventually we should | |
1591 | * store them and use them in create calls, even if they are synchronous, | |
1592 | * if only for testing purposes. | |
1593 | */ | |
1594 | ldout(cct, 10) << "delegated_inos: " << ocres.delegated_inos << dendl; | |
1595 | } else { | |
1596 | // u64 containing number of created ino | |
1597 | decode(created_ino, extra_bl); | |
1598 | } | |
7c673cae | 1599 | ldout(cct, 10) << "make_request created ino " << created_ino << dendl; |
9f95a23c | 1600 | got_created_ino = true; |
7c673cae FG |
1601 | } |
1602 | ||
1603 | if (pcreated) | |
1604 | *pcreated = got_created_ino; | |
1605 | ||
1606 | if (request->target) { | |
1607 | *ptarget = request->target; | |
1608 | ldout(cct, 20) << "make_request target is " << *ptarget->get() << dendl; | |
1609 | } else { | |
1610 | if (got_created_ino && (p = inode_map.find(vinodeno_t(created_ino, CEPH_NOSNAP))) != inode_map.end()) { | |
1611 | (*ptarget) = p->second; | |
1612 | ldout(cct, 20) << "make_request created, target is " << *ptarget->get() << dendl; | |
1613 | } else { | |
1614 | // we got a traceless reply, and need to look up what we just | |
1615 | // created. for now, do this by name. someday, do this by the | |
1616 | // ino... which we know! FIXME. | |
1617 | InodeRef target; | |
1618 | Dentry *d = request->dentry(); | |
1619 | if (d) { | |
1620 | if (d->dir) { | |
1621 | ldout(cct, 10) << "make_request got traceless reply, looking up #" | |
1622 | << d->dir->parent_inode->ino << "/" << d->name | |
1623 | << " got_ino " << got_created_ino | |
1624 | << " ino " << created_ino | |
1625 | << dendl; | |
1626 | r = _do_lookup(d->dir->parent_inode, d->name, request->regetattr_mask, | |
1627 | &target, perms); | |
1628 | } else { | |
1629 | // if the dentry is not linked, just do our best. see #5021. | |
11fdf7f2 | 1630 | ceph_abort_msg("how did this happen? i want logs!"); |
7c673cae FG |
1631 | } |
1632 | } else { | |
1633 | Inode *in = request->inode(); | |
1634 | ldout(cct, 10) << "make_request got traceless reply, forcing getattr on #" | |
1635 | << in->ino << dendl; | |
1636 | r = _getattr(in, request->regetattr_mask, perms, true); | |
1637 | target = in; | |
1638 | } | |
1639 | if (r >= 0) { | |
1640 | // verify ino returned in reply and trace_dist are the same | |
1641 | if (got_created_ino && | |
1642 | created_ino.val != target->ino.val) { | |
1643 | ldout(cct, 5) << "create got ino " << created_ino << " but then failed on lookup; EINTR?" << dendl; | |
1644 | r = -EINTR; | |
1645 | } | |
1646 | if (ptarget) | |
1647 | ptarget->swap(target); | |
1648 | } | |
1649 | } | |
1650 | } | |
1651 | ||
1652 | return r; | |
1653 | } | |
1654 | ||
1655 | ||
1656 | /** | |
1657 | * make a request | |
1658 | * | |
1659 | * Blocking helper to make an MDS request. | |
1660 | * | |
1661 | * If the ptarget flag is set, behavior changes slightly: the caller | |
1662 | * expects to get a pointer to the inode we are creating or operating | |
1663 | * on. As a result, we will follow up any traceless mutation reply | |
1664 | * with a getattr or lookup to transparently handle a traceless reply | |
1665 | * from the MDS (as when the MDS restarts and the client has to replay | |
1666 | * a request). | |
1667 | * | |
1668 | * @param request the MetaRequest to execute | |
1669 | * @param perms The user uid/gid to execute as (eventually, full group lists?) | |
1670 | * @param ptarget [optional] address to store a pointer to the target inode we want to create or operate on | |
1671 | * @param pcreated [optional; required if ptarget] where to store a bool of whether our create atomically created a file | |
1672 | * @param use_mds [optional] prefer a specific mds (-1 for default) | |
1673 | * @param pdirbl [optional; disallowed if ptarget] where to pass extra reply payload to the caller | |
1674 | */ | |
1675 | int Client::make_request(MetaRequest *request, | |
1676 | const UserPerm& perms, | |
1677 | InodeRef *ptarget, bool *pcreated, | |
1678 | mds_rank_t use_mds, | |
1679 | bufferlist *pdirbl) | |
1680 | { | |
1681 | int r = 0; | |
1682 | ||
1683 | // assign a unique tid | |
1684 | ceph_tid_t tid = ++last_tid; | |
1685 | request->set_tid(tid); | |
1686 | ||
1687 | // and timestamp | |
1688 | request->op_stamp = ceph_clock_now(); | |
1689 | ||
1690 | // make note | |
1691 | mds_requests[tid] = request->get(); | |
1692 | if (oldest_tid == 0 && request->get_op() != CEPH_MDS_OP_SETFILELOCK) | |
1693 | oldest_tid = tid; | |
1694 | ||
1695 | request->set_caller_perms(perms); | |
1696 | ||
1697 | if (cct->_conf->client_inject_fixed_oldest_tid) { | |
1698 | ldout(cct, 20) << __func__ << " injecting fixed oldest_client_tid(1)" << dendl; | |
1699 | request->set_oldest_client_tid(1); | |
1700 | } else { | |
1701 | request->set_oldest_client_tid(oldest_tid); | |
1702 | } | |
1703 | ||
1704 | // hack target mds? | |
1705 | if (use_mds >= 0) | |
1706 | request->resend_mds = use_mds; | |
1707 | ||
9f95a23c | 1708 | MetaSession *session = NULL; |
7c673cae FG |
1709 | while (1) { |
1710 | if (request->aborted()) | |
1711 | break; | |
1712 | ||
31f18b77 FG |
1713 | if (blacklisted) { |
1714 | request->abort(-EBLACKLISTED); | |
1715 | break; | |
1716 | } | |
1717 | ||
7c673cae | 1718 | // set up wait cond |
9f95a23c | 1719 | ceph::condition_variable caller_cond; |
7c673cae FG |
1720 | request->caller_cond = &caller_cond; |
1721 | ||
1722 | // choose mds | |
1723 | Inode *hash_diri = NULL; | |
1724 | mds_rank_t mds = choose_target_mds(request, &hash_diri); | |
1725 | int mds_state = (mds == MDS_RANK_NONE) ? MDSMap::STATE_NULL : mdsmap->get_state(mds); | |
1726 | if (mds_state != MDSMap::STATE_ACTIVE && mds_state != MDSMap::STATE_STOPPING) { | |
1727 | if (mds_state == MDSMap::STATE_NULL && mds >= mdsmap->get_max_mds()) { | |
1728 | if (hash_diri) { | |
1729 | ldout(cct, 10) << " target mds." << mds << " has stopped, remove it from fragmap" << dendl; | |
1730 | _fragmap_remove_stopped_mds(hash_diri, mds); | |
1731 | } else { | |
1732 | ldout(cct, 10) << " target mds." << mds << " has stopped, trying a random mds" << dendl; | |
1733 | request->resend_mds = _get_random_up_mds(); | |
1734 | } | |
1735 | } else { | |
1736 | ldout(cct, 10) << " target mds." << mds << " not active, waiting for new mdsmap" << dendl; | |
1737 | wait_on_list(waiting_for_mdsmap); | |
1738 | } | |
1739 | continue; | |
1740 | } | |
1741 | ||
1742 | // open a session? | |
7c673cae FG |
1743 | if (!have_open_session(mds)) { |
1744 | session = _get_or_open_mds_session(mds); | |
f6b5b4d7 TL |
1745 | if (session->state == MetaSession::STATE_REJECTED) { |
1746 | request->abort(-EPERM); | |
1747 | break; | |
1748 | } | |
7c673cae FG |
1749 | // wait |
1750 | if (session->state == MetaSession::STATE_OPENING) { | |
1751 | ldout(cct, 10) << "waiting for session to mds." << mds << " to open" << dendl; | |
1752 | wait_on_context_list(session->waiting_for_open); | |
7c673cae FG |
1753 | continue; |
1754 | } | |
1755 | ||
1756 | if (!have_open_session(mds)) | |
1757 | continue; | |
1758 | } else { | |
11fdf7f2 | 1759 | session = &mds_sessions.at(mds); |
7c673cae FG |
1760 | } |
1761 | ||
1762 | // send request. | |
1763 | send_request(request, session); | |
1764 | ||
1765 | // wait for signal | |
1766 | ldout(cct, 20) << "awaiting reply|forward|kick on " << &caller_cond << dendl; | |
1767 | request->kick = false; | |
9f95a23c TL |
1768 | std::unique_lock l{client_lock, std::adopt_lock}; |
1769 | caller_cond.wait(l, [request] { | |
1770 | return (request->reply || // reply | |
1771 | request->resend_mds >= 0 || // forward | |
1772 | request->kick); | |
1773 | }); | |
1774 | l.release(); | |
1775 | request->caller_cond = nullptr; | |
7c673cae FG |
1776 | |
1777 | // did we get a reply? | |
1778 | if (request->reply) | |
1779 | break; | |
1780 | } | |
1781 | ||
1782 | if (!request->reply) { | |
11fdf7f2 TL |
1783 | ceph_assert(request->aborted()); |
1784 | ceph_assert(!request->got_unsafe); | |
7c673cae FG |
1785 | r = request->get_abort_code(); |
1786 | request->item.remove_myself(); | |
1787 | unregister_request(request); | |
11fdf7f2 | 1788 | put_request(request); |
7c673cae FG |
1789 | return r; |
1790 | } | |
1791 | ||
1792 | // got it! | |
11fdf7f2 | 1793 | auto reply = std::move(request->reply); |
7c673cae FG |
1794 | r = reply->get_result(); |
1795 | if (r >= 0) | |
1796 | request->success = true; | |
1797 | ||
1798 | // kick dispatcher (we've got it!) | |
11fdf7f2 | 1799 | ceph_assert(request->dispatch_cond); |
9f95a23c | 1800 | request->dispatch_cond->notify_all(); |
7c673cae FG |
1801 | ldout(cct, 20) << "sendrecv kickback on tid " << tid << " " << request->dispatch_cond << dendl; |
1802 | request->dispatch_cond = 0; | |
1803 | ||
1804 | if (r >= 0 && ptarget) | |
9f95a23c | 1805 | r = verify_reply_trace(r, session, request, reply, ptarget, pcreated, perms); |
7c673cae FG |
1806 | |
1807 | if (pdirbl) | |
11fdf7f2 | 1808 | *pdirbl = reply->get_extra_bl(); |
7c673cae FG |
1809 | |
1810 | // -- log times -- | |
1811 | utime_t lat = ceph_clock_now(); | |
1812 | lat -= request->sent_stamp; | |
1813 | ldout(cct, 20) << "lat " << lat << dendl; | |
1814 | logger->tinc(l_c_lat, lat); | |
1815 | logger->tinc(l_c_reply, lat); | |
1816 | ||
1817 | put_request(request); | |
7c673cae FG |
1818 | return r; |
1819 | } | |
1820 | ||
1821 | void Client::unregister_request(MetaRequest *req) | |
1822 | { | |
1823 | mds_requests.erase(req->tid); | |
1824 | if (req->tid == oldest_tid) { | |
1825 | map<ceph_tid_t, MetaRequest*>::iterator p = mds_requests.upper_bound(oldest_tid); | |
1826 | while (true) { | |
1827 | if (p == mds_requests.end()) { | |
1828 | oldest_tid = 0; | |
1829 | break; | |
1830 | } | |
1831 | if (p->second->get_op() != CEPH_MDS_OP_SETFILELOCK) { | |
1832 | oldest_tid = p->first; | |
1833 | break; | |
1834 | } | |
1835 | ++p; | |
1836 | } | |
1837 | } | |
1838 | put_request(req); | |
1839 | } | |
1840 | ||
1841 | void Client::put_request(MetaRequest *request) | |
1842 | { | |
1843 | if (request->_put()) { | |
1844 | int op = -1; | |
1845 | if (request->success) | |
1846 | op = request->get_op(); | |
1847 | InodeRef other_in; | |
1848 | request->take_other_inode(&other_in); | |
1849 | delete request; | |
1850 | ||
1851 | if (other_in && | |
1852 | (op == CEPH_MDS_OP_RMDIR || | |
1853 | op == CEPH_MDS_OP_RENAME || | |
1854 | op == CEPH_MDS_OP_RMSNAP)) { | |
1855 | _try_to_trim_inode(other_in.get(), false); | |
1856 | } | |
1857 | } | |
1858 | } | |
1859 | ||
1860 | int Client::encode_inode_release(Inode *in, MetaRequest *req, | |
1861 | mds_rank_t mds, int drop, | |
1862 | int unless, int force) | |
1863 | { | |
11fdf7f2 | 1864 | ldout(cct, 20) << __func__ << " enter(in:" << *in << ", req:" << req |
7c673cae | 1865 | << " mds:" << mds << ", drop:" << drop << ", unless:" << unless |
1911f103 | 1866 | << ", force:" << force << ")" << dendl; |
7c673cae | 1867 | int released = 0; |
11fdf7f2 TL |
1868 | auto it = in->caps.find(mds); |
1869 | if (it != in->caps.end()) { | |
1870 | Cap &cap = it->second; | |
7c673cae | 1871 | drop &= ~(in->dirty_caps | get_caps_used(in)); |
11fdf7f2 TL |
1872 | if ((drop & cap.issued) && |
1873 | !(unless & cap.issued)) { | |
1911f103 | 1874 | ldout(cct, 25) << "dropping caps " << ccap_string(drop) << dendl; |
11fdf7f2 TL |
1875 | cap.issued &= ~drop; |
1876 | cap.implemented &= ~drop; | |
7c673cae | 1877 | released = 1; |
7c673cae FG |
1878 | } else { |
1879 | released = force; | |
1880 | } | |
1881 | if (released) { | |
1911f103 TL |
1882 | cap.wanted = in->caps_wanted(); |
1883 | if (&cap == in->auth_cap && | |
1884 | !(cap.wanted & CEPH_CAP_ANY_FILE_WR)) { | |
1885 | in->requested_max_size = 0; | |
1886 | ldout(cct, 25) << "reset requested_max_size due to not wanting any file write cap" << dendl; | |
1887 | } | |
7c673cae FG |
1888 | ceph_mds_request_release rel; |
1889 | rel.ino = in->ino; | |
11fdf7f2 TL |
1890 | rel.cap_id = cap.cap_id; |
1891 | rel.seq = cap.seq; | |
1892 | rel.issue_seq = cap.issue_seq; | |
1893 | rel.mseq = cap.mseq; | |
1894 | rel.caps = cap.implemented; | |
1895 | rel.wanted = cap.wanted; | |
7c673cae FG |
1896 | rel.dname_len = 0; |
1897 | rel.dname_seq = 0; | |
1898 | req->cap_releases.push_back(MClientRequest::Release(rel,"")); | |
1899 | } | |
1900 | } | |
11fdf7f2 | 1901 | ldout(cct, 25) << __func__ << " exit(in:" << *in << ") released:" |
7c673cae FG |
1902 | << released << dendl; |
1903 | return released; | |
1904 | } | |
1905 | ||
1906 | void Client::encode_dentry_release(Dentry *dn, MetaRequest *req, | |
1907 | mds_rank_t mds, int drop, int unless) | |
1908 | { | |
11fdf7f2 | 1909 | ldout(cct, 20) << __func__ << " enter(dn:" |
7c673cae FG |
1910 | << dn << ")" << dendl; |
1911 | int released = 0; | |
1912 | if (dn->dir) | |
1913 | released = encode_inode_release(dn->dir->parent_inode, req, | |
1914 | mds, drop, unless, 1); | |
1915 | if (released && dn->lease_mds == mds) { | |
1916 | ldout(cct, 25) << "preemptively releasing dn to mds" << dendl; | |
11fdf7f2 | 1917 | auto& rel = req->cap_releases.back(); |
7c673cae FG |
1918 | rel.item.dname_len = dn->name.length(); |
1919 | rel.item.dname_seq = dn->lease_seq; | |
1920 | rel.dname = dn->name; | |
adb31ebb | 1921 | dn->lease_mds = -1; |
7c673cae | 1922 | } |
11fdf7f2 | 1923 | ldout(cct, 25) << __func__ << " exit(dn:" |
7c673cae FG |
1924 | << dn << ")" << dendl; |
1925 | } | |
1926 | ||
1927 | ||
1928 | /* | |
1929 | * This requires the MClientRequest *request member to be set. | |
1930 | * It will error out horribly without one. | |
1931 | * Additionally, if you set any *drop member, you'd better have | |
1932 | * set the corresponding dentry! | |
1933 | */ | |
1934 | void Client::encode_cap_releases(MetaRequest *req, mds_rank_t mds) | |
1935 | { | |
11fdf7f2 | 1936 | ldout(cct, 20) << __func__ << " enter (req: " |
7c673cae FG |
1937 | << req << ", mds: " << mds << ")" << dendl; |
1938 | if (req->inode_drop && req->inode()) | |
1939 | encode_inode_release(req->inode(), req, | |
1940 | mds, req->inode_drop, | |
1941 | req->inode_unless); | |
1942 | ||
1943 | if (req->old_inode_drop && req->old_inode()) | |
1944 | encode_inode_release(req->old_inode(), req, | |
1945 | mds, req->old_inode_drop, | |
1946 | req->old_inode_unless); | |
1947 | if (req->other_inode_drop && req->other_inode()) | |
1948 | encode_inode_release(req->other_inode(), req, | |
1949 | mds, req->other_inode_drop, | |
1950 | req->other_inode_unless); | |
1951 | ||
1952 | if (req->dentry_drop && req->dentry()) | |
1953 | encode_dentry_release(req->dentry(), req, | |
1954 | mds, req->dentry_drop, | |
1955 | req->dentry_unless); | |
1956 | ||
1957 | if (req->old_dentry_drop && req->old_dentry()) | |
1958 | encode_dentry_release(req->old_dentry(), req, | |
1959 | mds, req->old_dentry_drop, | |
1960 | req->old_dentry_unless); | |
11fdf7f2 | 1961 | ldout(cct, 25) << __func__ << " exit (req: " |
7c673cae FG |
1962 | << req << ", mds " << mds <<dendl; |
1963 | } | |
1964 | ||
1965 | bool Client::have_open_session(mds_rank_t mds) | |
1966 | { | |
11fdf7f2 TL |
1967 | const auto &it = mds_sessions.find(mds); |
1968 | return it != mds_sessions.end() && | |
1969 | (it->second.state == MetaSession::STATE_OPEN || | |
1970 | it->second.state == MetaSession::STATE_STALE); | |
7c673cae FG |
1971 | } |
1972 | ||
1973 | MetaSession *Client::_get_mds_session(mds_rank_t mds, Connection *con) | |
1974 | { | |
11fdf7f2 TL |
1975 | const auto &it = mds_sessions.find(mds); |
1976 | if (it == mds_sessions.end() || it->second.con != con) { | |
7c673cae | 1977 | return NULL; |
11fdf7f2 TL |
1978 | } else { |
1979 | return &it->second; | |
1980 | } | |
7c673cae FG |
1981 | } |
1982 | ||
1983 | MetaSession *Client::_get_or_open_mds_session(mds_rank_t mds) | |
1984 | { | |
11fdf7f2 TL |
1985 | auto it = mds_sessions.find(mds); |
1986 | return it == mds_sessions.end() ? _open_mds_session(mds) : &it->second; | |
7c673cae FG |
1987 | } |
1988 | ||
1989 | /** | |
1990 | * Populate a map of strings with client-identifying metadata, | |
1991 | * such as the hostname. Call this once at initialization. | |
1992 | */ | |
1993 | void Client::populate_metadata(const std::string &mount_root) | |
1994 | { | |
1995 | // Hostname | |
1996 | struct utsname u; | |
1997 | int r = uname(&u); | |
1998 | if (r >= 0) { | |
1999 | metadata["hostname"] = u.nodename; | |
2000 | ldout(cct, 20) << __func__ << " read hostname '" << u.nodename << "'" << dendl; | |
2001 | } else { | |
2002 | ldout(cct, 1) << __func__ << " failed to read hostname (" << cpp_strerror(r) << ")" << dendl; | |
2003 | } | |
2004 | ||
2005 | metadata["pid"] = stringify(getpid()); | |
2006 | ||
2007 | // Ceph entity id (the '0' in "client.0") | |
2008 | metadata["entity_id"] = cct->_conf->name.get_id(); | |
2009 | ||
2010 | // Our mount position | |
2011 | if (!mount_root.empty()) { | |
2012 | metadata["root"] = mount_root; | |
2013 | } | |
2014 | ||
2015 | // Ceph version | |
2016 | metadata["ceph_version"] = pretty_version_to_str(); | |
2017 | metadata["ceph_sha1"] = git_version_to_str(); | |
2018 | ||
2019 | // Apply any metadata from the user's configured overrides | |
2020 | std::vector<std::string> tokens; | |
2021 | get_str_vec(cct->_conf->client_metadata, ",", tokens); | |
2022 | for (const auto &i : tokens) { | |
2023 | auto eqpos = i.find("="); | |
2024 | // Throw out anything that isn't of the form "<str>=<str>" | |
2025 | if (eqpos == 0 || eqpos == std::string::npos || eqpos == i.size()) { | |
2026 | lderr(cct) << "Invalid metadata keyval pair: '" << i << "'" << dendl; | |
2027 | continue; | |
2028 | } | |
2029 | metadata[i.substr(0, eqpos)] = i.substr(eqpos + 1); | |
2030 | } | |
2031 | } | |
2032 | ||
2033 | /** | |
2034 | * Optionally add or override client metadata fields. | |
2035 | */ | |
2036 | void Client::update_metadata(std::string const &k, std::string const &v) | |
2037 | { | |
11fdf7f2 TL |
2038 | std::lock_guard l(client_lock); |
2039 | ceph_assert(initialized); | |
7c673cae | 2040 | |
11fdf7f2 TL |
2041 | auto it = metadata.find(k); |
2042 | if (it != metadata.end()) { | |
7c673cae | 2043 | ldout(cct, 1) << __func__ << " warning, overriding metadata field '" << k |
11fdf7f2 | 2044 | << "' from '" << it->second << "' to '" << v << "'" << dendl; |
7c673cae FG |
2045 | } |
2046 | ||
2047 | metadata[k] = v; | |
2048 | } | |
2049 | ||
2050 | MetaSession *Client::_open_mds_session(mds_rank_t mds) | |
2051 | { | |
11fdf7f2 TL |
2052 | ldout(cct, 10) << __func__ << " mds." << mds << dendl; |
2053 | auto addrs = mdsmap->get_addrs(mds); | |
2054 | auto em = mds_sessions.emplace(std::piecewise_construct, | |
2055 | std::forward_as_tuple(mds), | |
2056 | std::forward_as_tuple(mds, messenger->connect_to_mds(addrs), addrs)); | |
2057 | ceph_assert(em.second); /* not already present */ | |
2058 | MetaSession *session = &em.first->second; | |
7c673cae | 2059 | |
9f95a23c | 2060 | auto m = make_message<MClientSession>(CEPH_SESSION_REQUEST_OPEN); |
11fdf7f2 TL |
2061 | m->metadata = metadata; |
2062 | m->supported_features = feature_bitset_t(CEPHFS_FEATURES_CLIENT_SUPPORTED); | |
2063 | session->con->send_message2(std::move(m)); | |
7c673cae FG |
2064 | return session; |
2065 | } | |
2066 | ||
2067 | void Client::_close_mds_session(MetaSession *s) | |
2068 | { | |
11fdf7f2 | 2069 | ldout(cct, 2) << __func__ << " mds." << s->mds_num << " seq " << s->seq << dendl; |
7c673cae | 2070 | s->state = MetaSession::STATE_CLOSING; |
9f95a23c | 2071 | s->con->send_message2(make_message<MClientSession>(CEPH_SESSION_REQUEST_CLOSE, s->seq)); |
7c673cae FG |
2072 | } |
2073 | ||
f6b5b4d7 | 2074 | void Client::_closed_mds_session(MetaSession *s, int err, bool rejected) |
7c673cae | 2075 | { |
11fdf7f2 | 2076 | ldout(cct, 5) << __func__ << " mds." << s->mds_num << " seq " << s->seq << dendl; |
f6b5b4d7 TL |
2077 | if (rejected && s->state != MetaSession::STATE_CLOSING) |
2078 | s->state = MetaSession::STATE_REJECTED; | |
2079 | else | |
2080 | s->state = MetaSession::STATE_CLOSED; | |
7c673cae FG |
2081 | s->con->mark_down(); |
2082 | signal_context_list(s->waiting_for_open); | |
9f95a23c | 2083 | mount_cond.notify_all(); |
f6b5b4d7 | 2084 | remove_session_caps(s, err); |
7c673cae | 2085 | kick_requests_closed(s); |
f6b5b4d7 TL |
2086 | mds_ranks_closing.erase(s->mds_num); |
2087 | if (s->state == MetaSession::STATE_CLOSED) | |
2088 | mds_sessions.erase(s->mds_num); | |
7c673cae FG |
2089 | } |
2090 | ||
11fdf7f2 | 2091 | void Client::handle_client_session(const MConstRef<MClientSession>& m) |
7c673cae FG |
2092 | { |
2093 | mds_rank_t from = mds_rank_t(m->get_source().num()); | |
11fdf7f2 | 2094 | ldout(cct, 10) << __func__ << " " << *m << " from mds." << from << dendl; |
7c673cae FG |
2095 | |
2096 | MetaSession *session = _get_mds_session(from, m->get_connection().get()); | |
2097 | if (!session) { | |
2098 | ldout(cct, 10) << " discarding session message from sessionless mds " << m->get_source_inst() << dendl; | |
7c673cae FG |
2099 | return; |
2100 | } | |
2101 | ||
2102 | switch (m->get_op()) { | |
2103 | case CEPH_SESSION_OPEN: | |
11fdf7f2 TL |
2104 | { |
2105 | feature_bitset_t missing_features(CEPHFS_FEATURES_CLIENT_REQUIRED); | |
2106 | missing_features -= m->supported_features; | |
2107 | if (!missing_features.empty()) { | |
2108 | lderr(cct) << "mds." << from << " lacks required features '" | |
2109 | << missing_features << "', closing session " << dendl; | |
11fdf7f2 | 2110 | _close_mds_session(session); |
f6b5b4d7 | 2111 | _closed_mds_session(session, -EPERM, true); |
11fdf7f2 TL |
2112 | break; |
2113 | } | |
2114 | session->mds_features = std::move(m->supported_features); | |
2115 | ||
2116 | renew_caps(session); | |
2117 | session->state = MetaSession::STATE_OPEN; | |
2118 | if (unmounting) | |
9f95a23c | 2119 | mount_cond.notify_all(); |
11fdf7f2 TL |
2120 | else |
2121 | connect_mds_targets(from); | |
2122 | signal_context_list(session->waiting_for_open); | |
2123 | break; | |
2124 | } | |
7c673cae FG |
2125 | |
2126 | case CEPH_SESSION_CLOSE: | |
2127 | _closed_mds_session(session); | |
2128 | break; | |
2129 | ||
2130 | case CEPH_SESSION_RENEWCAPS: | |
2131 | if (session->cap_renew_seq == m->get_seq()) { | |
a8e16298 | 2132 | bool was_stale = ceph_clock_now() >= session->cap_ttl; |
7c673cae FG |
2133 | session->cap_ttl = |
2134 | session->last_cap_renew_request + mdsmap->get_session_timeout(); | |
a8e16298 TL |
2135 | if (was_stale) |
2136 | wake_up_session_caps(session, false); | |
7c673cae FG |
2137 | } |
2138 | break; | |
2139 | ||
2140 | case CEPH_SESSION_STALE: | |
28e407b8 AA |
2141 | // invalidate session caps/leases |
2142 | session->cap_gen++; | |
2143 | session->cap_ttl = ceph_clock_now(); | |
2144 | session->cap_ttl -= 1; | |
7c673cae FG |
2145 | renew_caps(session); |
2146 | break; | |
2147 | ||
2148 | case CEPH_SESSION_RECALL_STATE: | |
2149 | trim_caps(session, m->get_max_caps()); | |
2150 | break; | |
2151 | ||
2152 | case CEPH_SESSION_FLUSHMSG: | |
a8e16298 | 2153 | /* flush cap release */ |
11fdf7f2 TL |
2154 | if (auto& m = session->release; m) { |
2155 | session->con->send_message2(std::move(m)); | |
a8e16298 | 2156 | } |
9f95a23c | 2157 | session->con->send_message2(make_message<MClientSession>(CEPH_SESSION_FLUSHMSG_ACK, m->get_seq())); |
7c673cae FG |
2158 | break; |
2159 | ||
2160 | case CEPH_SESSION_FORCE_RO: | |
2161 | force_session_readonly(session); | |
2162 | break; | |
2163 | ||
2164 | case CEPH_SESSION_REJECT: | |
11fdf7f2 TL |
2165 | { |
2166 | std::string_view error_str; | |
2167 | auto it = m->metadata.find("error_string"); | |
2168 | if (it != m->metadata.end()) | |
2169 | error_str = it->second; | |
2170 | else | |
2171 | error_str = "unknown error"; | |
2172 | lderr(cct) << "mds." << from << " rejected us (" << error_str << ")" << dendl; | |
7c673cae | 2173 | |
f6b5b4d7 | 2174 | _closed_mds_session(session, -EPERM, true); |
11fdf7f2 | 2175 | } |
7c673cae FG |
2176 | break; |
2177 | ||
2178 | default: | |
2179 | ceph_abort(); | |
2180 | } | |
7c673cae FG |
2181 | } |
2182 | ||
2183 | bool Client::_any_stale_sessions() const | |
2184 | { | |
9f95a23c | 2185 | ceph_assert(ceph_mutex_is_locked_by_me(client_lock)); |
7c673cae | 2186 | |
11fdf7f2 TL |
2187 | for (const auto &p : mds_sessions) { |
2188 | if (p.second.state == MetaSession::STATE_STALE) { | |
7c673cae FG |
2189 | return true; |
2190 | } | |
2191 | } | |
2192 | ||
2193 | return false; | |
2194 | } | |
2195 | ||
2196 | void Client::_kick_stale_sessions() | |
2197 | { | |
11fdf7f2 | 2198 | ldout(cct, 1) << __func__ << dendl; |
7c673cae | 2199 | |
11fdf7f2 TL |
2200 | for (auto it = mds_sessions.begin(); it != mds_sessions.end(); ) { |
2201 | MetaSession &s = it->second; | |
f6b5b4d7 TL |
2202 | if (s.state == MetaSession::STATE_REJECTED) { |
2203 | mds_sessions.erase(it++); | |
2204 | continue; | |
2205 | } | |
11fdf7f2 TL |
2206 | ++it; |
2207 | if (s.state == MetaSession::STATE_STALE) | |
2208 | _closed_mds_session(&s); | |
7c673cae FG |
2209 | } |
2210 | } | |
2211 | ||
2212 | void Client::send_request(MetaRequest *request, MetaSession *session, | |
2213 | bool drop_cap_releases) | |
2214 | { | |
2215 | // make the request | |
2216 | mds_rank_t mds = session->mds_num; | |
11fdf7f2 | 2217 | ldout(cct, 10) << __func__ << " rebuilding request " << request->get_tid() |
7c673cae | 2218 | << " for mds." << mds << dendl; |
11fdf7f2 | 2219 | auto r = build_client_request(request); |
7c673cae FG |
2220 | if (request->dentry()) { |
2221 | r->set_dentry_wanted(); | |
2222 | } | |
2223 | if (request->got_unsafe) { | |
2224 | r->set_replayed_op(); | |
2225 | if (request->target) | |
2226 | r->head.ino = request->target->ino; | |
2227 | } else { | |
2228 | encode_cap_releases(request, mds); | |
2229 | if (drop_cap_releases) // we haven't send cap reconnect yet, drop cap releases | |
2230 | request->cap_releases.clear(); | |
2231 | else | |
2232 | r->releases.swap(request->cap_releases); | |
2233 | } | |
2234 | r->set_mdsmap_epoch(mdsmap->get_epoch()); | |
2235 | if (r->head.op == CEPH_MDS_OP_SETXATTR) { | |
2236 | objecter->with_osdmap([r](const OSDMap& o) { | |
2237 | r->set_osdmap_epoch(o.get_epoch()); | |
2238 | }); | |
2239 | } | |
2240 | ||
2241 | if (request->mds == -1) { | |
2242 | request->sent_stamp = ceph_clock_now(); | |
11fdf7f2 | 2243 | ldout(cct, 20) << __func__ << " set sent_stamp to " << request->sent_stamp << dendl; |
7c673cae FG |
2244 | } |
2245 | request->mds = mds; | |
2246 | ||
2247 | Inode *in = request->inode(); | |
11fdf7f2 TL |
2248 | if (in) { |
2249 | auto it = in->caps.find(mds); | |
2250 | if (it != in->caps.end()) { | |
2251 | request->sent_on_mseq = it->second.mseq; | |
2252 | } | |
2253 | } | |
7c673cae FG |
2254 | |
2255 | session->requests.push_back(&request->item); | |
2256 | ||
11fdf7f2 TL |
2257 | ldout(cct, 10) << __func__ << " " << *r << " to mds." << mds << dendl; |
2258 | session->con->send_message2(std::move(r)); | |
7c673cae FG |
2259 | } |
2260 | ||
9f95a23c | 2261 | ref_t<MClientRequest> Client::build_client_request(MetaRequest *request) |
7c673cae | 2262 | { |
9f95a23c | 2263 | auto req = make_message<MClientRequest>(request->get_op()); |
7c673cae FG |
2264 | req->set_tid(request->tid); |
2265 | req->set_stamp(request->op_stamp); | |
2266 | memcpy(&req->head, &request->head, sizeof(ceph_mds_request_head)); | |
2267 | ||
2268 | // if the filepath's haven't been set, set them! | |
2269 | if (request->path.empty()) { | |
2270 | Inode *in = request->inode(); | |
2271 | Dentry *de = request->dentry(); | |
2272 | if (in) | |
2273 | in->make_nosnap_relative_path(request->path); | |
2274 | else if (de) { | |
2275 | if (de->inode) | |
2276 | de->inode->make_nosnap_relative_path(request->path); | |
2277 | else if (de->dir) { | |
2278 | de->dir->parent_inode->make_nosnap_relative_path(request->path); | |
2279 | request->path.push_dentry(de->name); | |
2280 | } | |
2281 | else ldout(cct, 1) << "Warning -- unable to construct a filepath!" | |
2282 | << " No path, inode, or appropriately-endowed dentry given!" | |
2283 | << dendl; | |
2284 | } else ldout(cct, 1) << "Warning -- unable to construct a filepath!" | |
2285 | << " No path, inode, or dentry given!" | |
2286 | << dendl; | |
2287 | } | |
2288 | req->set_filepath(request->get_filepath()); | |
2289 | req->set_filepath2(request->get_filepath2()); | |
2290 | req->set_data(request->data); | |
2291 | req->set_retry_attempt(request->retry_attempt++); | |
2292 | req->head.num_fwd = request->num_fwd; | |
2293 | const gid_t *_gids; | |
2294 | int gid_count = request->perms.get_gids(&_gids); | |
2295 | req->set_gid_list(gid_count, _gids); | |
2296 | return req; | |
2297 | } | |
2298 | ||
2299 | ||
2300 | ||
11fdf7f2 | 2301 | void Client::handle_client_request_forward(const MConstRef<MClientRequestForward>& fwd) |
7c673cae FG |
2302 | { |
2303 | mds_rank_t mds = mds_rank_t(fwd->get_source().num()); | |
2304 | MetaSession *session = _get_mds_session(mds, fwd->get_connection().get()); | |
2305 | if (!session) { | |
7c673cae FG |
2306 | return; |
2307 | } | |
2308 | ceph_tid_t tid = fwd->get_tid(); | |
2309 | ||
2310 | if (mds_requests.count(tid) == 0) { | |
11fdf7f2 | 2311 | ldout(cct, 10) << __func__ << " no pending request on tid " << tid << dendl; |
7c673cae FG |
2312 | return; |
2313 | } | |
2314 | ||
2315 | MetaRequest *request = mds_requests[tid]; | |
11fdf7f2 | 2316 | ceph_assert(request); |
7c673cae FG |
2317 | |
2318 | // reset retry counter | |
2319 | request->retry_attempt = 0; | |
2320 | ||
2321 | // request not forwarded, or dest mds has no session. | |
2322 | // resend. | |
11fdf7f2 | 2323 | ldout(cct, 10) << __func__ << " tid " << tid |
7c673cae FG |
2324 | << " fwd " << fwd->get_num_fwd() |
2325 | << " to mds." << fwd->get_dest_mds() | |
2326 | << ", resending to " << fwd->get_dest_mds() | |
2327 | << dendl; | |
2328 | ||
2329 | request->mds = -1; | |
2330 | request->item.remove_myself(); | |
2331 | request->num_fwd = fwd->get_num_fwd(); | |
2332 | request->resend_mds = fwd->get_dest_mds(); | |
9f95a23c | 2333 | request->caller_cond->notify_all(); |
7c673cae FG |
2334 | } |
2335 | ||
2336 | bool Client::is_dir_operation(MetaRequest *req) | |
2337 | { | |
2338 | int op = req->get_op(); | |
2339 | if (op == CEPH_MDS_OP_MKNOD || op == CEPH_MDS_OP_LINK || | |
2340 | op == CEPH_MDS_OP_UNLINK || op == CEPH_MDS_OP_RENAME || | |
2341 | op == CEPH_MDS_OP_MKDIR || op == CEPH_MDS_OP_RMDIR || | |
2342 | op == CEPH_MDS_OP_SYMLINK || op == CEPH_MDS_OP_CREATE) | |
2343 | return true; | |
2344 | return false; | |
2345 | } | |
2346 | ||
11fdf7f2 | 2347 | void Client::handle_client_reply(const MConstRef<MClientReply>& reply) |
7c673cae FG |
2348 | { |
2349 | mds_rank_t mds_num = mds_rank_t(reply->get_source().num()); | |
2350 | MetaSession *session = _get_mds_session(mds_num, reply->get_connection().get()); | |
2351 | if (!session) { | |
7c673cae FG |
2352 | return; |
2353 | } | |
2354 | ||
2355 | ceph_tid_t tid = reply->get_tid(); | |
2356 | bool is_safe = reply->is_safe(); | |
2357 | ||
2358 | if (mds_requests.count(tid) == 0) { | |
11fdf7f2 | 2359 | lderr(cct) << __func__ << " no pending request on tid " << tid |
7c673cae | 2360 | << " safe is:" << is_safe << dendl; |
7c673cae FG |
2361 | return; |
2362 | } | |
2363 | MetaRequest *request = mds_requests.at(tid); | |
2364 | ||
11fdf7f2 | 2365 | ldout(cct, 20) << __func__ << " got a reply. Safe:" << is_safe |
7c673cae FG |
2366 | << " tid " << tid << dendl; |
2367 | ||
2368 | if (request->got_unsafe && !is_safe) { | |
2369 | //duplicate response | |
2370 | ldout(cct, 0) << "got a duplicate reply on tid " << tid << " from mds " | |
2371 | << mds_num << " safe:" << is_safe << dendl; | |
7c673cae FG |
2372 | return; |
2373 | } | |
2374 | ||
2375 | if (-ESTALE == reply->get_result()) { // see if we can get to proper MDS | |
2376 | ldout(cct, 20) << "got ESTALE on tid " << request->tid | |
2377 | << " from mds." << request->mds << dendl; | |
2378 | request->send_to_auth = true; | |
2379 | request->resend_mds = choose_target_mds(request); | |
2380 | Inode *in = request->inode(); | |
11fdf7f2 | 2381 | std::map<mds_rank_t, Cap>::const_iterator it; |
7c673cae FG |
2382 | if (request->resend_mds >= 0 && |
2383 | request->resend_mds == request->mds && | |
2384 | (in == NULL || | |
11fdf7f2 TL |
2385 | (it = in->caps.find(request->resend_mds)) != in->caps.end() || |
2386 | request->sent_on_mseq == it->second.mseq)) { | |
2387 | ldout(cct, 20) << "have to return ESTALE" << dendl; | |
7c673cae | 2388 | } else { |
9f95a23c | 2389 | request->caller_cond->notify_all(); |
7c673cae FG |
2390 | return; |
2391 | } | |
7c673cae FG |
2392 | } |
2393 | ||
11fdf7f2 | 2394 | ceph_assert(!request->reply); |
7c673cae FG |
2395 | request->reply = reply; |
2396 | insert_trace(request, session); | |
2397 | ||
2398 | // Handle unsafe reply | |
2399 | if (!is_safe) { | |
2400 | request->got_unsafe = true; | |
2401 | session->unsafe_requests.push_back(&request->unsafe_item); | |
2402 | if (is_dir_operation(request)) { | |
2403 | Inode *dir = request->inode(); | |
11fdf7f2 | 2404 | ceph_assert(dir); |
7c673cae FG |
2405 | dir->unsafe_ops.push_back(&request->unsafe_dir_item); |
2406 | } | |
2407 | if (request->target) { | |
2408 | InodeRef &in = request->target; | |
2409 | in->unsafe_ops.push_back(&request->unsafe_target_item); | |
2410 | } | |
2411 | } | |
2412 | ||
2413 | // Only signal the caller once (on the first reply): | |
2414 | // Either its an unsafe reply, or its a safe reply and no unsafe reply was sent. | |
2415 | if (!is_safe || !request->got_unsafe) { | |
9f95a23c | 2416 | ceph::condition_variable cond; |
7c673cae FG |
2417 | request->dispatch_cond = &cond; |
2418 | ||
2419 | // wake up waiter | |
11fdf7f2 | 2420 | ldout(cct, 20) << __func__ << " signalling caller " << (void*)request->caller_cond << dendl; |
9f95a23c | 2421 | request->caller_cond->notify_all(); |
7c673cae FG |
2422 | |
2423 | // wake for kick back | |
9f95a23c TL |
2424 | std::unique_lock l{client_lock, std::adopt_lock}; |
2425 | cond.wait(l, [tid, request, &cond, this] { | |
2426 | if (request->dispatch_cond) { | |
2427 | ldout(cct, 20) << "handle_client_reply awaiting kickback on tid " | |
2428 | << tid << " " << &cond << dendl; | |
2429 | } | |
2430 | return !request->dispatch_cond; | |
2431 | }); | |
2432 | l.release(); | |
7c673cae FG |
2433 | } |
2434 | ||
2435 | if (is_safe) { | |
2436 | // the filesystem change is committed to disk | |
2437 | // we're done, clean up | |
2438 | if (request->got_unsafe) { | |
2439 | request->unsafe_item.remove_myself(); | |
2440 | request->unsafe_dir_item.remove_myself(); | |
2441 | request->unsafe_target_item.remove_myself(); | |
2442 | signal_cond_list(request->waitfor_safe); | |
2443 | } | |
2444 | request->item.remove_myself(); | |
2445 | unregister_request(request); | |
2446 | } | |
2447 | if (unmounting) | |
9f95a23c | 2448 | mount_cond.notify_all(); |
7c673cae FG |
2449 | } |
2450 | ||
2451 | void Client::_handle_full_flag(int64_t pool) | |
2452 | { | |
2453 | ldout(cct, 1) << __func__ << ": FULL: cancelling outstanding operations " | |
2454 | << "on " << pool << dendl; | |
2455 | // Cancel all outstanding ops in this pool with -ENOSPC: it is necessary | |
2456 | // to do this rather than blocking, because otherwise when we fill up we | |
2457 | // potentially lock caps forever on files with dirty pages, and we need | |
2458 | // to be able to release those caps to the MDS so that it can delete files | |
2459 | // and free up space. | |
2460 | epoch_t cancelled_epoch = objecter->op_cancel_writes(-ENOSPC, pool); | |
2461 | ||
2462 | // For all inodes with layouts in this pool and a pending flush write op | |
2463 | // (i.e. one of the ones we will cancel), we've got to purge_set their data | |
2464 | // from ObjectCacher so that it doesn't re-issue the write in response to | |
2465 | // the ENOSPC error. | |
2466 | // Fortunately since we're cancelling everything in a given pool, we don't | |
2467 | // need to know which ops belong to which ObjectSet, we can just blow all | |
2468 | // the un-flushed cached data away and mark any dirty inodes' async_err | |
2469 | // field with -ENOSPC as long as we're sure all the ops we cancelled were | |
2470 | // affecting this pool, and all the objectsets we're purging were also | |
2471 | // in this pool. | |
2472 | for (unordered_map<vinodeno_t,Inode*>::iterator i = inode_map.begin(); | |
2473 | i != inode_map.end(); ++i) | |
2474 | { | |
2475 | Inode *inode = i->second; | |
2476 | if (inode->oset.dirty_or_tx | |
2477 | && (pool == -1 || inode->layout.pool_id == pool)) { | |
2478 | ldout(cct, 4) << __func__ << ": FULL: inode 0x" << std::hex << i->first << std::dec | |
2479 | << " has dirty objects, purging and setting ENOSPC" << dendl; | |
2480 | objectcacher->purge_set(&inode->oset); | |
2481 | inode->set_async_err(-ENOSPC); | |
2482 | } | |
2483 | } | |
2484 | ||
2485 | if (cancelled_epoch != (epoch_t)-1) { | |
2486 | set_cap_epoch_barrier(cancelled_epoch); | |
2487 | } | |
2488 | } | |
2489 | ||
11fdf7f2 | 2490 | void Client::handle_osd_map(const MConstRef<MOSDMap>& m) |
7c673cae | 2491 | { |
31f18b77 FG |
2492 | std::set<entity_addr_t> new_blacklists; |
2493 | objecter->consume_blacklist_events(&new_blacklists); | |
2494 | ||
11fdf7f2 TL |
2495 | const auto myaddrs = messenger->get_myaddrs(); |
2496 | bool new_blacklist = false; | |
2497 | bool prenautilus = objecter->with_osdmap( | |
2498 | [&](const OSDMap& o) { | |
9f95a23c | 2499 | return o.require_osd_release < ceph_release_t::nautilus; |
11fdf7f2 TL |
2500 | }); |
2501 | if (!blacklisted) { | |
2502 | for (auto a : myaddrs.v) { | |
2503 | // blacklist entries are always TYPE_ANY for nautilus+ | |
2504 | a.set_type(entity_addr_t::TYPE_ANY); | |
2505 | if (new_blacklists.count(a)) { | |
2506 | new_blacklist = true; | |
2507 | break; | |
2508 | } | |
2509 | if (prenautilus) { | |
2510 | // ...except pre-nautilus, they were TYPE_LEGACY | |
2511 | a.set_type(entity_addr_t::TYPE_LEGACY); | |
2512 | if (new_blacklists.count(a)) { | |
2513 | new_blacklist = true; | |
2514 | break; | |
2515 | } | |
2516 | } | |
2517 | } | |
2518 | } | |
2519 | if (new_blacklist) { | |
31f18b77 FG |
2520 | auto epoch = objecter->with_osdmap([](const OSDMap &o){ |
2521 | return o.get_epoch(); | |
2522 | }); | |
2523 | lderr(cct) << "I was blacklisted at osd epoch " << epoch << dendl; | |
2524 | blacklisted = true; | |
31f18b77 | 2525 | |
11fdf7f2 | 2526 | _abort_mds_sessions(-EBLACKLISTED); |
31f18b77 FG |
2527 | |
2528 | // Since we know all our OSD ops will fail, cancel them all preemtively, | |
2529 | // so that on an unhealthy cluster we can umount promptly even if e.g. | |
2530 | // some PGs were inaccessible. | |
2531 | objecter->op_cancel_writes(-EBLACKLISTED); | |
2532 | ||
2533 | } else if (blacklisted) { | |
2534 | // Handle case where we were blacklisted but no longer are | |
11fdf7f2 TL |
2535 | blacklisted = objecter->with_osdmap([myaddrs](const OSDMap &o){ |
2536 | return o.is_blacklisted(myaddrs);}); | |
31f18b77 FG |
2537 | } |
2538 | ||
f64942e4 AA |
2539 | // Always subscribe to next osdmap for blacklisted client |
2540 | // until this client is not blacklisted. | |
2541 | if (blacklisted) { | |
2542 | objecter->maybe_request_map(); | |
2543 | } | |
2544 | ||
7c673cae FG |
2545 | if (objecter->osdmap_full_flag()) { |
2546 | _handle_full_flag(-1); | |
2547 | } else { | |
2548 | // Accumulate local list of full pools so that I can drop | |
2549 | // the objecter lock before re-entering objecter in | |
2550 | // cancel_writes | |
2551 | std::vector<int64_t> full_pools; | |
2552 | ||
2553 | objecter->with_osdmap([&full_pools](const OSDMap &o) { | |
2554 | for (const auto& kv : o.get_pools()) { | |
2555 | if (kv.second.has_flag(pg_pool_t::FLAG_FULL)) { | |
2556 | full_pools.push_back(kv.first); | |
2557 | } | |
2558 | } | |
2559 | }); | |
2560 | ||
2561 | for (auto p : full_pools) | |
2562 | _handle_full_flag(p); | |
2563 | ||
2564 | // Subscribe to subsequent maps to watch for the full flag going | |
2565 | // away. For the global full flag objecter does this for us, but | |
2566 | // it pays no attention to the per-pool full flag so in this branch | |
2567 | // we do it ourselves. | |
2568 | if (!full_pools.empty()) { | |
2569 | objecter->maybe_request_map(); | |
2570 | } | |
2571 | } | |
7c673cae FG |
2572 | } |
2573 | ||
2574 | ||
2575 | // ------------------------ | |
2576 | // incoming messages | |
2577 | ||
2578 | ||
11fdf7f2 | 2579 | bool Client::ms_dispatch2(const MessageRef &m) |
7c673cae | 2580 | { |
11fdf7f2 | 2581 | std::lock_guard l(client_lock); |
7c673cae FG |
2582 | if (!initialized) { |
2583 | ldout(cct, 10) << "inactive, discarding " << *m << dendl; | |
7c673cae FG |
2584 | return true; |
2585 | } | |
2586 | ||
2587 | switch (m->get_type()) { | |
2588 | // mounting and mds sessions | |
2589 | case CEPH_MSG_MDS_MAP: | |
9f95a23c | 2590 | handle_mds_map(ref_cast<MMDSMap>(m)); |
7c673cae FG |
2591 | break; |
2592 | case CEPH_MSG_FS_MAP: | |
9f95a23c | 2593 | handle_fs_map(ref_cast<MFSMap>(m)); |
7c673cae FG |
2594 | break; |
2595 | case CEPH_MSG_FS_MAP_USER: | |
9f95a23c | 2596 | handle_fs_map_user(ref_cast<MFSMapUser>(m)); |
7c673cae FG |
2597 | break; |
2598 | case CEPH_MSG_CLIENT_SESSION: | |
9f95a23c | 2599 | handle_client_session(ref_cast<MClientSession>(m)); |
7c673cae FG |
2600 | break; |
2601 | ||
2602 | case CEPH_MSG_OSD_MAP: | |
9f95a23c | 2603 | handle_osd_map(ref_cast<MOSDMap>(m)); |
7c673cae FG |
2604 | break; |
2605 | ||
2606 | // requests | |
2607 | case CEPH_MSG_CLIENT_REQUEST_FORWARD: | |
9f95a23c | 2608 | handle_client_request_forward(ref_cast<MClientRequestForward>(m)); |
7c673cae FG |
2609 | break; |
2610 | case CEPH_MSG_CLIENT_REPLY: | |
9f95a23c | 2611 | handle_client_reply(ref_cast<MClientReply>(m)); |
11fdf7f2 TL |
2612 | break; |
2613 | ||
2614 | // reclaim reply | |
2615 | case CEPH_MSG_CLIENT_RECLAIM_REPLY: | |
9f95a23c | 2616 | handle_client_reclaim_reply(ref_cast<MClientReclaimReply>(m)); |
7c673cae FG |
2617 | break; |
2618 | ||
2619 | case CEPH_MSG_CLIENT_SNAP: | |
9f95a23c | 2620 | handle_snap(ref_cast<MClientSnap>(m)); |
7c673cae FG |
2621 | break; |
2622 | case CEPH_MSG_CLIENT_CAPS: | |
9f95a23c | 2623 | handle_caps(ref_cast<MClientCaps>(m)); |
7c673cae FG |
2624 | break; |
2625 | case CEPH_MSG_CLIENT_LEASE: | |
9f95a23c | 2626 | handle_lease(ref_cast<MClientLease>(m)); |
7c673cae FG |
2627 | break; |
2628 | case MSG_COMMAND_REPLY: | |
2629 | if (m->get_source().type() == CEPH_ENTITY_TYPE_MDS) { | |
9f95a23c | 2630 | handle_command_reply(ref_cast<MCommandReply>(m)); |
7c673cae FG |
2631 | } else { |
2632 | return false; | |
2633 | } | |
2634 | break; | |
2635 | case CEPH_MSG_CLIENT_QUOTA: | |
9f95a23c | 2636 | handle_quota(ref_cast<MClientQuota>(m)); |
7c673cae FG |
2637 | break; |
2638 | ||
2639 | default: | |
2640 | return false; | |
2641 | } | |
2642 | ||
2643 | // unmounting? | |
2644 | if (unmounting) { | |
2645 | ldout(cct, 10) << "unmounting: trim pass, size was " << lru.lru_get_size() | |
2646 | << "+" << inode_map.size() << dendl; | |
2647 | long unsigned size = lru.lru_get_size() + inode_map.size(); | |
2648 | trim_cache(); | |
2649 | if (size < lru.lru_get_size() + inode_map.size()) { | |
2650 | ldout(cct, 10) << "unmounting: trim pass, cache shrank, poking unmount()" << dendl; | |
9f95a23c | 2651 | mount_cond.notify_all(); |
7c673cae FG |
2652 | } else { |
2653 | ldout(cct, 10) << "unmounting: trim pass, size still " << lru.lru_get_size() | |
2654 | << "+" << inode_map.size() << dendl; | |
2655 | } | |
2656 | } | |
2657 | ||
2658 | return true; | |
2659 | } | |
2660 | ||
11fdf7f2 | 2661 | void Client::handle_fs_map(const MConstRef<MFSMap>& m) |
7c673cae FG |
2662 | { |
2663 | fsmap.reset(new FSMap(m->get_fsmap())); | |
7c673cae FG |
2664 | |
2665 | signal_cond_list(waiting_for_fsmap); | |
2666 | ||
2667 | monclient->sub_got("fsmap", fsmap->get_epoch()); | |
2668 | } | |
2669 | ||
11fdf7f2 | 2670 | void Client::handle_fs_map_user(const MConstRef<MFSMapUser>& m) |
7c673cae FG |
2671 | { |
2672 | fsmap_user.reset(new FSMapUser); | |
2673 | *fsmap_user = m->get_fsmap(); | |
7c673cae FG |
2674 | |
2675 | monclient->sub_got("fsmap.user", fsmap_user->get_epoch()); | |
2676 | signal_cond_list(waiting_for_fsmap); | |
2677 | } | |
2678 | ||
11fdf7f2 | 2679 | void Client::handle_mds_map(const MConstRef<MMDSMap>& m) |
7c673cae | 2680 | { |
f64942e4 | 2681 | mds_gid_t old_inc, new_inc; |
7c673cae | 2682 | if (m->get_epoch() <= mdsmap->get_epoch()) { |
11fdf7f2 | 2683 | ldout(cct, 1) << __func__ << " epoch " << m->get_epoch() |
7c673cae FG |
2684 | << " is identical to or older than our " |
2685 | << mdsmap->get_epoch() << dendl; | |
7c673cae | 2686 | return; |
f64942e4 | 2687 | } |
7c673cae | 2688 | |
11fdf7f2 | 2689 | ldout(cct, 1) << __func__ << " epoch " << m->get_epoch() << dendl; |
7c673cae FG |
2690 | |
2691 | std::unique_ptr<MDSMap> oldmap(new MDSMap); | |
2692 | oldmap.swap(mdsmap); | |
2693 | ||
2694 | mdsmap->decode(m->get_encoded()); | |
2695 | ||
2696 | // Cancel any commands for missing or laggy GIDs | |
2697 | std::list<ceph_tid_t> cancel_ops; | |
2698 | auto &commands = command_table.get_commands(); | |
2699 | for (const auto &i : commands) { | |
2700 | auto &op = i.second; | |
2701 | const mds_gid_t op_mds_gid = op.mds_gid; | |
2702 | if (mdsmap->is_dne_gid(op_mds_gid) || mdsmap->is_laggy_gid(op_mds_gid)) { | |
2703 | ldout(cct, 1) << __func__ << ": cancelling command op " << i.first << dendl; | |
2704 | cancel_ops.push_back(i.first); | |
2705 | if (op.outs) { | |
2706 | std::ostringstream ss; | |
2707 | ss << "MDS " << op_mds_gid << " went away"; | |
2708 | *(op.outs) = ss.str(); | |
2709 | } | |
2710 | op.con->mark_down(); | |
2711 | if (op.on_finish) { | |
2712 | op.on_finish->complete(-ETIMEDOUT); | |
2713 | } | |
2714 | } | |
2715 | } | |
2716 | ||
2717 | for (std::list<ceph_tid_t>::iterator i = cancel_ops.begin(); | |
2718 | i != cancel_ops.end(); ++i) { | |
2719 | command_table.erase(*i); | |
2720 | } | |
2721 | ||
2722 | // reset session | |
11fdf7f2 | 2723 | for (auto p = mds_sessions.begin(); p != mds_sessions.end(); ) { |
7c673cae | 2724 | mds_rank_t mds = p->first; |
11fdf7f2 | 2725 | MetaSession *session = &p->second; |
7c673cae FG |
2726 | ++p; |
2727 | ||
2728 | int oldstate = oldmap->get_state(mds); | |
2729 | int newstate = mdsmap->get_state(mds); | |
2730 | if (!mdsmap->is_up(mds)) { | |
2731 | session->con->mark_down(); | |
11fdf7f2 | 2732 | } else if (mdsmap->get_addrs(mds) != session->addrs) { |
f64942e4 AA |
2733 | old_inc = oldmap->get_incarnation(mds); |
2734 | new_inc = mdsmap->get_incarnation(mds); | |
2735 | if (old_inc != new_inc) { | |
2736 | ldout(cct, 1) << "mds incarnation changed from " | |
2737 | << old_inc << " to " << new_inc << dendl; | |
2738 | oldstate = MDSMap::STATE_NULL; | |
2739 | } | |
7c673cae | 2740 | session->con->mark_down(); |
11fdf7f2 | 2741 | session->addrs = mdsmap->get_addrs(mds); |
7c673cae FG |
2742 | // When new MDS starts to take over, notify kernel to trim unused entries |
2743 | // in its dcache/icache. Hopefully, the kernel will release some unused | |
2744 | // inodes before the new MDS enters reconnect state. | |
2745 | trim_cache_for_reconnect(session); | |
2746 | } else if (oldstate == newstate) | |
2747 | continue; // no change | |
2748 | ||
2749 | session->mds_state = newstate; | |
2750 | if (newstate == MDSMap::STATE_RECONNECT) { | |
11fdf7f2 | 2751 | session->con = messenger->connect_to_mds(session->addrs); |
7c673cae | 2752 | send_reconnect(session); |
81eedcae TL |
2753 | } else if (newstate > MDSMap::STATE_RECONNECT) { |
2754 | if (oldstate < MDSMap::STATE_RECONNECT) { | |
2755 | ldout(cct, 1) << "we may miss the MDSMap::RECONNECT, close mds session ... " << dendl; | |
2756 | _closed_mds_session(session); | |
2757 | continue; | |
2758 | } | |
2759 | if (newstate >= MDSMap::STATE_ACTIVE) { | |
2760 | if (oldstate < MDSMap::STATE_ACTIVE) { | |
2761 | // kick new requests | |
2762 | kick_requests(session); | |
2763 | kick_flushing_caps(session); | |
2764 | signal_context_list(session->waiting_for_open); | |
2765 | wake_up_session_caps(session, true); | |
2766 | } | |
2767 | connect_mds_targets(mds); | |
7c673cae | 2768 | } |
7c673cae FG |
2769 | } else if (newstate == MDSMap::STATE_NULL && |
2770 | mds >= mdsmap->get_max_mds()) { | |
2771 | _closed_mds_session(session); | |
2772 | } | |
2773 | } | |
2774 | ||
2775 | // kick any waiting threads | |
2776 | signal_cond_list(waiting_for_mdsmap); | |
2777 | ||
7c673cae FG |
2778 | monclient->sub_got("mdsmap", mdsmap->get_epoch()); |
2779 | } | |
2780 | ||
2781 | void Client::send_reconnect(MetaSession *session) | |
2782 | { | |
2783 | mds_rank_t mds = session->mds_num; | |
11fdf7f2 | 2784 | ldout(cct, 10) << __func__ << " to mds." << mds << dendl; |
7c673cae FG |
2785 | |
2786 | // trim unused caps to reduce MDS's cache rejoin time | |
2787 | trim_cache_for_reconnect(session); | |
2788 | ||
2789 | session->readonly = false; | |
2790 | ||
11fdf7f2 | 2791 | session->release.reset(); |
7c673cae FG |
2792 | |
2793 | // reset my cap seq number | |
2794 | session->seq = 0; | |
2795 | //connect to the mds' offload targets | |
2796 | connect_mds_targets(mds); | |
2797 | //make sure unsafe requests get saved | |
2798 | resend_unsafe_requests(session); | |
2799 | ||
11fdf7f2 TL |
2800 | early_kick_flushing_caps(session); |
2801 | ||
9f95a23c | 2802 | auto m = make_message<MClientReconnect>(); |
11fdf7f2 | 2803 | bool allow_multi = session->mds_features.test(CEPHFS_FEATURE_MULTI_RECONNECT); |
7c673cae FG |
2804 | |
2805 | // i have an open session. | |
2806 | ceph::unordered_set<inodeno_t> did_snaprealm; | |
2807 | for (ceph::unordered_map<vinodeno_t, Inode*>::iterator p = inode_map.begin(); | |
2808 | p != inode_map.end(); | |
2809 | ++p) { | |
2810 | Inode *in = p->second; | |
11fdf7f2 TL |
2811 | auto it = in->caps.find(mds); |
2812 | if (it != in->caps.end()) { | |
2813 | if (allow_multi && | |
9f95a23c TL |
2814 | m->get_approx_size() >= |
2815 | static_cast<size_t>((std::numeric_limits<int>::max() >> 1))) { | |
11fdf7f2 TL |
2816 | m->mark_more(); |
2817 | session->con->send_message2(std::move(m)); | |
2818 | ||
9f95a23c | 2819 | m = make_message<MClientReconnect>(); |
11fdf7f2 TL |
2820 | } |
2821 | ||
2822 | Cap &cap = it->second; | |
7c673cae | 2823 | ldout(cct, 10) << " caps on " << p->first |
11fdf7f2 | 2824 | << " " << ccap_string(cap.issued) |
7c673cae FG |
2825 | << " wants " << ccap_string(in->caps_wanted()) |
2826 | << dendl; | |
2827 | filepath path; | |
f91f0fd5 | 2828 | in->make_short_path(path); |
7c673cae FG |
2829 | ldout(cct, 10) << " path " << path << dendl; |
2830 | ||
2831 | bufferlist flockbl; | |
2832 | _encode_filelocks(in, flockbl); | |
2833 | ||
11fdf7f2 TL |
2834 | cap.seq = 0; // reset seq. |
2835 | cap.issue_seq = 0; // reset seq. | |
2836 | cap.mseq = 0; // reset seq. | |
2837 | // cap gen should catch up with session cap_gen | |
2838 | if (cap.gen < session->cap_gen) { | |
2839 | cap.gen = session->cap_gen; | |
2840 | cap.issued = cap.implemented = CEPH_CAP_PIN; | |
2841 | } else { | |
2842 | cap.issued = cap.implemented; | |
2843 | } | |
7c673cae FG |
2844 | snapid_t snap_follows = 0; |
2845 | if (!in->cap_snaps.empty()) | |
2846 | snap_follows = in->cap_snaps.begin()->first; | |
2847 | ||
2848 | m->add_cap(p->first.ino, | |
11fdf7f2 | 2849 | cap.cap_id, |
7c673cae FG |
2850 | path.get_ino(), path.get_path(), // ino |
2851 | in->caps_wanted(), // wanted | |
11fdf7f2 | 2852 | cap.issued, // issued |
7c673cae FG |
2853 | in->snaprealm->ino, |
2854 | snap_follows, | |
2855 | flockbl); | |
2856 | ||
2857 | if (did_snaprealm.count(in->snaprealm->ino) == 0) { | |
2858 | ldout(cct, 10) << " snaprealm " << *in->snaprealm << dendl; | |
2859 | m->add_snaprealm(in->snaprealm->ino, in->snaprealm->seq, in->snaprealm->parent); | |
2860 | did_snaprealm.insert(in->snaprealm->ino); | |
2861 | } | |
2862 | } | |
2863 | } | |
2864 | ||
11fdf7f2 TL |
2865 | if (!allow_multi) |
2866 | m->set_encoding_version(0); // use connection features to choose encoding | |
2867 | session->con->send_message2(std::move(m)); | |
7c673cae | 2868 | |
9f95a23c | 2869 | mount_cond.notify_all(); |
11fdf7f2 TL |
2870 | |
2871 | if (session->reclaim_state == MetaSession::RECLAIMING) | |
2872 | signal_cond_list(waiting_for_reclaim); | |
7c673cae FG |
2873 | } |
2874 | ||
2875 | ||
2876 | void Client::kick_requests(MetaSession *session) | |
2877 | { | |
11fdf7f2 | 2878 | ldout(cct, 10) << __func__ << " for mds." << session->mds_num << dendl; |
7c673cae FG |
2879 | for (map<ceph_tid_t, MetaRequest*>::iterator p = mds_requests.begin(); |
2880 | p != mds_requests.end(); | |
2881 | ++p) { | |
31f18b77 FG |
2882 | MetaRequest *req = p->second; |
2883 | if (req->got_unsafe) | |
2884 | continue; | |
2885 | if (req->aborted()) { | |
2886 | if (req->caller_cond) { | |
2887 | req->kick = true; | |
9f95a23c | 2888 | req->caller_cond->notify_all(); |
31f18b77 | 2889 | } |
7c673cae | 2890 | continue; |
31f18b77 FG |
2891 | } |
2892 | if (req->retry_attempt > 0) | |
7c673cae | 2893 | continue; // new requests only |
31f18b77 | 2894 | if (req->mds == session->mds_num) { |
7c673cae FG |
2895 | send_request(p->second, session); |
2896 | } | |
2897 | } | |
2898 | } | |
2899 | ||
2900 | void Client::resend_unsafe_requests(MetaSession *session) | |
2901 | { | |
2902 | for (xlist<MetaRequest*>::iterator iter = session->unsafe_requests.begin(); | |
2903 | !iter.end(); | |
2904 | ++iter) | |
2905 | send_request(*iter, session); | |
2906 | ||
2907 | // also re-send old requests when MDS enters reconnect stage. So that MDS can | |
2908 | // process completed requests in clientreplay stage. | |
2909 | for (map<ceph_tid_t, MetaRequest*>::iterator p = mds_requests.begin(); | |
2910 | p != mds_requests.end(); | |
2911 | ++p) { | |
2912 | MetaRequest *req = p->second; | |
2913 | if (req->got_unsafe) | |
2914 | continue; | |
31f18b77 FG |
2915 | if (req->aborted()) |
2916 | continue; | |
7c673cae FG |
2917 | if (req->retry_attempt == 0) |
2918 | continue; // old requests only | |
2919 | if (req->mds == session->mds_num) | |
2920 | send_request(req, session, true); | |
2921 | } | |
2922 | } | |
2923 | ||
2924 | void Client::wait_unsafe_requests() | |
2925 | { | |
2926 | list<MetaRequest*> last_unsafe_reqs; | |
11fdf7f2 TL |
2927 | for (const auto &p : mds_sessions) { |
2928 | const MetaSession &s = p.second; | |
2929 | if (!s.unsafe_requests.empty()) { | |
2930 | MetaRequest *req = s.unsafe_requests.back(); | |
7c673cae FG |
2931 | req->get(); |
2932 | last_unsafe_reqs.push_back(req); | |
2933 | } | |
2934 | } | |
2935 | ||
2936 | for (list<MetaRequest*>::iterator p = last_unsafe_reqs.begin(); | |
2937 | p != last_unsafe_reqs.end(); | |
2938 | ++p) { | |
2939 | MetaRequest *req = *p; | |
2940 | if (req->unsafe_item.is_on_list()) | |
2941 | wait_on_list(req->waitfor_safe); | |
2942 | put_request(req); | |
2943 | } | |
2944 | } | |
2945 | ||
2946 | void Client::kick_requests_closed(MetaSession *session) | |
2947 | { | |
11fdf7f2 | 2948 | ldout(cct, 10) << __func__ << " for mds." << session->mds_num << dendl; |
7c673cae FG |
2949 | for (map<ceph_tid_t, MetaRequest*>::iterator p = mds_requests.begin(); |
2950 | p != mds_requests.end(); ) { | |
2951 | MetaRequest *req = p->second; | |
2952 | ++p; | |
2953 | if (req->mds == session->mds_num) { | |
2954 | if (req->caller_cond) { | |
2955 | req->kick = true; | |
9f95a23c | 2956 | req->caller_cond->notify_all(); |
7c673cae FG |
2957 | } |
2958 | req->item.remove_myself(); | |
2959 | if (req->got_unsafe) { | |
11fdf7f2 | 2960 | lderr(cct) << __func__ << " removing unsafe request " << req->get_tid() << dendl; |
7c673cae | 2961 | req->unsafe_item.remove_myself(); |
eafe8130 TL |
2962 | if (is_dir_operation(req)) { |
2963 | Inode *dir = req->inode(); | |
2964 | assert(dir); | |
2965 | dir->set_async_err(-EIO); | |
2966 | lderr(cct) << "kick_requests_closed drop req of inode(dir) : " | |
2967 | << dir->ino << " " << req->get_tid() << dendl; | |
2968 | req->unsafe_dir_item.remove_myself(); | |
2969 | } | |
2970 | if (req->target) { | |
2971 | InodeRef &in = req->target; | |
2972 | in->set_async_err(-EIO); | |
2973 | lderr(cct) << "kick_requests_closed drop req of inode : " | |
2974 | << in->ino << " " << req->get_tid() << dendl; | |
2975 | req->unsafe_target_item.remove_myself(); | |
2976 | } | |
7c673cae FG |
2977 | signal_cond_list(req->waitfor_safe); |
2978 | unregister_request(req); | |
2979 | } | |
2980 | } | |
2981 | } | |
11fdf7f2 TL |
2982 | ceph_assert(session->requests.empty()); |
2983 | ceph_assert(session->unsafe_requests.empty()); | |
7c673cae FG |
2984 | } |
2985 | ||
2986 | ||
2987 | ||
2988 | ||
2989 | /************ | |
2990 | * leases | |
2991 | */ | |
2992 | ||
2993 | void Client::got_mds_push(MetaSession *s) | |
2994 | { | |
2995 | s->seq++; | |
2996 | ldout(cct, 10) << " mds." << s->mds_num << " seq now " << s->seq << dendl; | |
2997 | if (s->state == MetaSession::STATE_CLOSING) { | |
9f95a23c | 2998 | s->con->send_message2(make_message<MClientSession>(CEPH_SESSION_REQUEST_CLOSE, s->seq)); |
7c673cae FG |
2999 | } |
3000 | } | |
3001 | ||
11fdf7f2 | 3002 | void Client::handle_lease(const MConstRef<MClientLease>& m) |
7c673cae | 3003 | { |
11fdf7f2 | 3004 | ldout(cct, 10) << __func__ << " " << *m << dendl; |
7c673cae | 3005 | |
11fdf7f2 | 3006 | ceph_assert(m->get_action() == CEPH_MDS_LEASE_REVOKE); |
7c673cae FG |
3007 | |
3008 | mds_rank_t mds = mds_rank_t(m->get_source().num()); | |
3009 | MetaSession *session = _get_mds_session(mds, m->get_connection().get()); | |
3010 | if (!session) { | |
7c673cae FG |
3011 | return; |
3012 | } | |
3013 | ||
3014 | got_mds_push(session); | |
3015 | ||
3016 | ceph_seq_t seq = m->get_seq(); | |
3017 | ||
3018 | Inode *in; | |
3019 | vinodeno_t vino(m->get_ino(), CEPH_NOSNAP); | |
3020 | if (inode_map.count(vino) == 0) { | |
3021 | ldout(cct, 10) << " don't have vino " << vino << dendl; | |
3022 | goto revoke; | |
3023 | } | |
3024 | in = inode_map[vino]; | |
3025 | ||
9f95a23c | 3026 | if (m->get_mask() & CEPH_LEASE_VALID) { |
7c673cae FG |
3027 | if (!in->dir || in->dir->dentries.count(m->dname) == 0) { |
3028 | ldout(cct, 10) << " don't have dir|dentry " << m->get_ino() << "/" << m->dname <<dendl; | |
3029 | goto revoke; | |
3030 | } | |
3031 | Dentry *dn = in->dir->dentries[m->dname]; | |
3032 | ldout(cct, 10) << " revoked DN lease on " << dn << dendl; | |
3033 | dn->lease_mds = -1; | |
3034 | } | |
3035 | ||
3036 | revoke: | |
11fdf7f2 | 3037 | { |
9f95a23c TL |
3038 | auto reply = make_message<MClientLease>(CEPH_MDS_LEASE_RELEASE, seq, |
3039 | m->get_mask(), m->get_ino(), | |
3040 | m->get_first(), m->get_last(), m->dname); | |
11fdf7f2 TL |
3041 | m->get_connection()->send_message2(std::move(reply)); |
3042 | } | |
7c673cae FG |
3043 | } |
3044 | ||
3045 | void Client::put_inode(Inode *in, int n) | |
3046 | { | |
11fdf7f2 | 3047 | ldout(cct, 10) << __func__ << " on " << *in << dendl; |
7c673cae FG |
3048 | int left = in->_put(n); |
3049 | if (left == 0) { | |
3050 | // release any caps | |
3051 | remove_all_caps(in); | |
3052 | ||
11fdf7f2 | 3053 | ldout(cct, 10) << __func__ << " deleting " << *in << dendl; |
7c673cae | 3054 | bool unclean = objectcacher->release_set(&in->oset); |
11fdf7f2 | 3055 | ceph_assert(!unclean); |
7c673cae FG |
3056 | inode_map.erase(in->vino()); |
3057 | if (use_faked_inos()) | |
3058 | _release_faked_ino(in); | |
3059 | ||
3060 | if (in == root) { | |
3061 | root = 0; | |
3062 | root_ancestor = 0; | |
3063 | while (!root_parents.empty()) | |
3064 | root_parents.erase(root_parents.begin()); | |
3065 | } | |
3066 | ||
3067 | delete in; | |
3068 | } | |
3069 | } | |
3070 | ||
3071 | void Client::close_dir(Dir *dir) | |
3072 | { | |
3073 | Inode *in = dir->parent_inode; | |
11fdf7f2 TL |
3074 | ldout(cct, 15) << __func__ << " dir " << dir << " on " << in << dendl; |
3075 | ceph_assert(dir->is_empty()); | |
3076 | ceph_assert(in->dir == dir); | |
3077 | ceph_assert(in->dentries.size() < 2); // dirs can't be hard-linked | |
3078 | if (!in->dentries.empty()) | |
7c673cae FG |
3079 | in->get_first_parent()->put(); // unpin dentry |
3080 | ||
3081 | delete in->dir; | |
3082 | in->dir = 0; | |
3083 | put_inode(in); // unpin inode | |
3084 | } | |
3085 | ||
3086 | /** | |
3087 | * Don't call this with in==NULL, use get_or_create for that | |
3088 | * leave dn set to default NULL unless you're trying to add | |
3089 | * a new inode to a pre-created Dentry | |
3090 | */ | |
3091 | Dentry* Client::link(Dir *dir, const string& name, Inode *in, Dentry *dn) | |
3092 | { | |
3093 | if (!dn) { | |
3094 | // create a new Dentry | |
11fdf7f2 TL |
3095 | dn = new Dentry(dir, name); |
3096 | ||
7c673cae FG |
3097 | lru.lru_insert_mid(dn); // mid or top? |
3098 | ||
3099 | ldout(cct, 15) << "link dir " << dir->parent_inode << " '" << name << "' to inode " << in | |
3100 | << " dn " << dn << " (new dn)" << dendl; | |
3101 | } else { | |
11fdf7f2 | 3102 | ceph_assert(!dn->inode); |
7c673cae FG |
3103 | ldout(cct, 15) << "link dir " << dir->parent_inode << " '" << name << "' to inode " << in |
3104 | << " dn " << dn << " (old dn)" << dendl; | |
3105 | } | |
3106 | ||
3107 | if (in) { // link to inode | |
11fdf7f2 | 3108 | InodeRef tmp_ref; |
7c673cae | 3109 | // only one parent for directories! |
11fdf7f2 TL |
3110 | if (in->is_dir() && !in->dentries.empty()) { |
3111 | tmp_ref = in; // prevent unlink below from freeing the inode. | |
7c673cae | 3112 | Dentry *olddn = in->get_first_parent(); |
11fdf7f2 | 3113 | ceph_assert(olddn->dir != dir || olddn->name != name); |
7c673cae | 3114 | Inode *old_diri = olddn->dir->parent_inode; |
7c673cae FG |
3115 | clear_dir_complete_and_ordered(old_diri, true); |
3116 | unlink(olddn, true, true); // keep dir, dentry | |
3117 | } | |
3118 | ||
11fdf7f2 TL |
3119 | dn->link(in); |
3120 | ldout(cct, 20) << "link inode " << in << " parents now " << in->dentries << dendl; | |
7c673cae FG |
3121 | } |
3122 | ||
3123 | return dn; | |
3124 | } | |
3125 | ||
3126 | void Client::unlink(Dentry *dn, bool keepdir, bool keepdentry) | |
3127 | { | |
11fdf7f2 | 3128 | InodeRef in(dn->inode); |
7c673cae FG |
3129 | ldout(cct, 15) << "unlink dir " << dn->dir->parent_inode << " '" << dn->name << "' dn " << dn |
3130 | << " inode " << dn->inode << dendl; | |
3131 | ||
3132 | // unlink from inode | |
11fdf7f2 TL |
3133 | if (dn->inode) { |
3134 | dn->unlink(); | |
3135 | ldout(cct, 20) << "unlink inode " << in << " parents now " << in->dentries << dendl; | |
7c673cae FG |
3136 | } |
3137 | ||
3138 | if (keepdentry) { | |
3139 | dn->lease_mds = -1; | |
3140 | } else { | |
3141 | ldout(cct, 15) << "unlink removing '" << dn->name << "' dn " << dn << dendl; | |
3142 | ||
3143 | // unlink from dir | |
11fdf7f2 TL |
3144 | Dir *dir = dn->dir; |
3145 | dn->detach(); | |
7c673cae FG |
3146 | |
3147 | // delete den | |
3148 | lru.lru_remove(dn); | |
3149 | dn->put(); | |
11fdf7f2 TL |
3150 | |
3151 | if (dir->is_empty() && !keepdir) | |
3152 | close_dir(dir); | |
7c673cae FG |
3153 | } |
3154 | } | |
3155 | ||
3156 | /** | |
3157 | * For asynchronous flushes, check for errors from the IO and | |
3158 | * update the inode if necessary | |
3159 | */ | |
3160 | class C_Client_FlushComplete : public Context { | |
3161 | private: | |
3162 | Client *client; | |
3163 | InodeRef inode; | |
3164 | public: | |
3165 | C_Client_FlushComplete(Client *c, Inode *in) : client(c), inode(in) { } | |
3166 | void finish(int r) override { | |
9f95a23c | 3167 | ceph_assert(ceph_mutex_is_locked_by_me(client->client_lock)); |
7c673cae FG |
3168 | if (r != 0) { |
3169 | client_t const whoami = client->whoami; // For the benefit of ldout prefix | |
3170 | ldout(client->cct, 1) << "I/O error from flush on inode " << inode | |
3171 | << " 0x" << std::hex << inode->ino << std::dec | |
3172 | << ": " << r << "(" << cpp_strerror(r) << ")" << dendl; | |
3173 | inode->set_async_err(r); | |
3174 | } | |
3175 | } | |
3176 | }; | |
3177 | ||
3178 | ||
3179 | /**** | |
3180 | * caps | |
3181 | */ | |
3182 | ||
3183 | void Client::get_cap_ref(Inode *in, int cap) | |
3184 | { | |
3185 | if ((cap & CEPH_CAP_FILE_BUFFER) && | |
3186 | in->cap_refs[CEPH_CAP_FILE_BUFFER] == 0) { | |
11fdf7f2 | 3187 | ldout(cct, 5) << __func__ << " got first FILE_BUFFER ref on " << *in << dendl; |
7c673cae FG |
3188 | in->get(); |
3189 | } | |
3190 | if ((cap & CEPH_CAP_FILE_CACHE) && | |
3191 | in->cap_refs[CEPH_CAP_FILE_CACHE] == 0) { | |
11fdf7f2 | 3192 | ldout(cct, 5) << __func__ << " got first FILE_CACHE ref on " << *in << dendl; |
7c673cae FG |
3193 | in->get(); |
3194 | } | |
3195 | in->get_cap_ref(cap); | |
3196 | } | |
3197 | ||
3198 | void Client::put_cap_ref(Inode *in, int cap) | |
3199 | { | |
3200 | int last = in->put_cap_ref(cap); | |
3201 | if (last) { | |
3202 | int put_nref = 0; | |
3203 | int drop = last & ~in->caps_issued(); | |
3204 | if (in->snapid == CEPH_NOSNAP) { | |
7f7e6c64 | 3205 | if ((last & (CEPH_CAP_FILE_WR | CEPH_CAP_FILE_BUFFER)) && |
7c673cae FG |
3206 | !in->cap_snaps.empty() && |
3207 | in->cap_snaps.rbegin()->second.writing) { | |
11fdf7f2 | 3208 | ldout(cct, 10) << __func__ << " finishing pending cap_snap on " << *in << dendl; |
7c673cae FG |
3209 | in->cap_snaps.rbegin()->second.writing = 0; |
3210 | finish_cap_snap(in, in->cap_snaps.rbegin()->second, get_caps_used(in)); | |
3211 | signal_cond_list(in->waitfor_caps); // wake up blocked sync writers | |
3212 | } | |
3213 | if (last & CEPH_CAP_FILE_BUFFER) { | |
3214 | for (auto &p : in->cap_snaps) | |
3215 | p.second.dirty_data = 0; | |
3216 | signal_cond_list(in->waitfor_commit); | |
11fdf7f2 | 3217 | ldout(cct, 5) << __func__ << " dropped last FILE_BUFFER ref on " << *in << dendl; |
7c673cae FG |
3218 | ++put_nref; |
3219 | } | |
3220 | } | |
3221 | if (last & CEPH_CAP_FILE_CACHE) { | |
11fdf7f2 | 3222 | ldout(cct, 5) << __func__ << " dropped last FILE_CACHE ref on " << *in << dendl; |
7c673cae FG |
3223 | ++put_nref; |
3224 | } | |
3225 | if (drop) | |
3226 | check_caps(in, 0); | |
3227 | if (put_nref) | |
3228 | put_inode(in, put_nref); | |
3229 | } | |
3230 | } | |
3231 | ||
f6b5b4d7 | 3232 | int Client::get_caps(Fh *fh, int need, int want, int *phave, loff_t endoff) |
7c673cae | 3233 | { |
f6b5b4d7 TL |
3234 | Inode *in = fh->inode.get(); |
3235 | ||
7c673cae FG |
3236 | int r = check_pool_perm(in, need); |
3237 | if (r < 0) | |
3238 | return r; | |
3239 | ||
3240 | while (1) { | |
3241 | int file_wanted = in->caps_file_wanted(); | |
3242 | if ((file_wanted & need) != need) { | |
3243 | ldout(cct, 10) << "get_caps " << *in << " need " << ccap_string(need) | |
3244 | << " file_wanted " << ccap_string(file_wanted) << ", EBADF " | |
3245 | << dendl; | |
3246 | return -EBADF; | |
3247 | } | |
3248 | ||
f6b5b4d7 TL |
3249 | if ((fh->mode & CEPH_FILE_MODE_WR) && fh->gen != fd_gen) |
3250 | return -EBADF; | |
3251 | ||
3252 | if ((in->flags & I_ERROR_FILELOCK) && fh->has_any_filelocks()) | |
3253 | return -EIO; | |
3254 | ||
7c673cae FG |
3255 | int implemented; |
3256 | int have = in->caps_issued(&implemented); | |
3257 | ||
3258 | bool waitfor_caps = false; | |
3259 | bool waitfor_commit = false; | |
3260 | ||
3261 | if (have & need & CEPH_CAP_FILE_WR) { | |
1911f103 TL |
3262 | if (endoff > 0) { |
3263 | if ((endoff >= (loff_t)in->max_size || | |
3264 | endoff > (loff_t)(in->size << 1)) && | |
3265 | endoff > (loff_t)in->wanted_max_size) { | |
3266 | ldout(cct, 10) << "wanted_max_size " << in->wanted_max_size << " -> " << endoff << dendl; | |
3267 | in->wanted_max_size = endoff; | |
3268 | } | |
3269 | if (in->wanted_max_size > in->max_size && | |
3270 | in->wanted_max_size > in->requested_max_size) | |
3271 | check_caps(in, 0); | |
7c673cae FG |
3272 | } |
3273 | ||
3274 | if (endoff >= 0 && endoff > (loff_t)in->max_size) { | |
3275 | ldout(cct, 10) << "waiting on max_size, endoff " << endoff << " max_size " << in->max_size << " on " << *in << dendl; | |
3276 | waitfor_caps = true; | |
3277 | } | |
3278 | if (!in->cap_snaps.empty()) { | |
3279 | if (in->cap_snaps.rbegin()->second.writing) { | |
3280 | ldout(cct, 10) << "waiting on cap_snap write to complete" << dendl; | |
3281 | waitfor_caps = true; | |
3282 | } | |
3283 | for (auto &p : in->cap_snaps) { | |
3284 | if (p.second.dirty_data) { | |
3285 | waitfor_commit = true; | |
3286 | break; | |
3287 | } | |
3288 | } | |
3289 | if (waitfor_commit) { | |
3290 | _flush(in, new C_Client_FlushComplete(this, in)); | |
3291 | ldout(cct, 10) << "waiting for WRBUFFER to get dropped" << dendl; | |
3292 | } | |
3293 | } | |
3294 | } | |
3295 | ||
3296 | if (!waitfor_caps && !waitfor_commit) { | |
3297 | if ((have & need) == need) { | |
7c673cae FG |
3298 | int revoking = implemented & ~have; |
3299 | ldout(cct, 10) << "get_caps " << *in << " have " << ccap_string(have) | |
3300 | << " need " << ccap_string(need) << " want " << ccap_string(want) | |
c07f9fc5 | 3301 | << " revoking " << ccap_string(revoking) |
7c673cae | 3302 | << dendl; |
c07f9fc5 | 3303 | if ((revoking & want) == 0) { |
7c673cae FG |
3304 | *phave = need | (have & want); |
3305 | in->get_cap_ref(need); | |
3306 | return 0; | |
3307 | } | |
3308 | } | |
3309 | ldout(cct, 10) << "waiting for caps " << *in << " need " << ccap_string(need) << " want " << ccap_string(want) << dendl; | |
3310 | waitfor_caps = true; | |
3311 | } | |
3312 | ||
3313 | if ((need & CEPH_CAP_FILE_WR) && in->auth_cap && | |
3314 | in->auth_cap->session->readonly) | |
3315 | return -EROFS; | |
3316 | ||
3317 | if (in->flags & I_CAP_DROPPED) { | |
3318 | int mds_wanted = in->caps_mds_wanted(); | |
3319 | if ((mds_wanted & need) != need) { | |
3320 | int ret = _renew_caps(in); | |
3321 | if (ret < 0) | |
3322 | return ret; | |
3323 | continue; | |
3324 | } | |
a8e16298 | 3325 | if (!(file_wanted & ~mds_wanted)) |
7c673cae | 3326 | in->flags &= ~I_CAP_DROPPED; |
7c673cae FG |
3327 | } |
3328 | ||
3329 | if (waitfor_caps) | |
3330 | wait_on_list(in->waitfor_caps); | |
3331 | else if (waitfor_commit) | |
3332 | wait_on_list(in->waitfor_commit); | |
3333 | } | |
3334 | } | |
3335 | ||
3336 | int Client::get_caps_used(Inode *in) | |
3337 | { | |
3338 | unsigned used = in->caps_used(); | |
3339 | if (!(used & CEPH_CAP_FILE_CACHE) && | |
3340 | !objectcacher->set_is_empty(&in->oset)) | |
3341 | used |= CEPH_CAP_FILE_CACHE; | |
3342 | return used; | |
3343 | } | |
3344 | ||
3345 | void Client::cap_delay_requeue(Inode *in) | |
3346 | { | |
11fdf7f2 | 3347 | ldout(cct, 10) << __func__ << " on " << *in << dendl; |
7c673cae FG |
3348 | in->hold_caps_until = ceph_clock_now(); |
3349 | in->hold_caps_until += cct->_conf->client_caps_release_delay; | |
28e407b8 | 3350 | delayed_list.push_back(&in->delay_cap_item); |
7c673cae FG |
3351 | } |
3352 | ||
3353 | void Client::send_cap(Inode *in, MetaSession *session, Cap *cap, | |
eafe8130 | 3354 | int flags, int used, int want, int retain, |
7c673cae FG |
3355 | int flush, ceph_tid_t flush_tid) |
3356 | { | |
3357 | int held = cap->issued | cap->implemented; | |
3358 | int revoking = cap->implemented & ~cap->issued; | |
3359 | retain &= ~revoking; | |
3360 | int dropping = cap->issued & ~retain; | |
3361 | int op = CEPH_CAP_OP_UPDATE; | |
3362 | ||
11fdf7f2 | 3363 | ldout(cct, 10) << __func__ << " " << *in |
7c673cae | 3364 | << " mds." << session->mds_num << " seq " << cap->seq |
7c673cae FG |
3365 | << " used " << ccap_string(used) |
3366 | << " want " << ccap_string(want) | |
3367 | << " flush " << ccap_string(flush) | |
3368 | << " retain " << ccap_string(retain) | |
3369 | << " held "<< ccap_string(held) | |
3370 | << " revoking " << ccap_string(revoking) | |
3371 | << " dropping " << ccap_string(dropping) | |
3372 | << dendl; | |
3373 | ||
3374 | if (cct->_conf->client_inject_release_failure && revoking) { | |
3375 | const int would_have_issued = cap->issued & retain; | |
3376 | const int would_have_implemented = cap->implemented & (cap->issued | used); | |
3377 | // Simulated bug: | |
3378 | // - tell the server we think issued is whatever they issued plus whatever we implemented | |
3379 | // - leave what we have implemented in place | |
3380 | ldout(cct, 20) << __func__ << " injecting failure to release caps" << dendl; | |
3381 | cap->issued = cap->issued | cap->implemented; | |
3382 | ||
3383 | // Make an exception for revoking xattr caps: we are injecting | |
3384 | // failure to release other caps, but allow xattr because client | |
3385 | // will block on xattr ops if it can't release these to MDS (#9800) | |
3386 | const int xattr_mask = CEPH_CAP_XATTR_SHARED | CEPH_CAP_XATTR_EXCL; | |
3387 | cap->issued ^= xattr_mask & revoking; | |
3388 | cap->implemented ^= xattr_mask & revoking; | |
3389 | ||
3390 | ldout(cct, 20) << __func__ << " issued " << ccap_string(cap->issued) << " vs " << ccap_string(would_have_issued) << dendl; | |
3391 | ldout(cct, 20) << __func__ << " implemented " << ccap_string(cap->implemented) << " vs " << ccap_string(would_have_implemented) << dendl; | |
3392 | } else { | |
3393 | // Normal behaviour | |
3394 | cap->issued &= retain; | |
3395 | cap->implemented &= cap->issued | used; | |
3396 | } | |
3397 | ||
3398 | snapid_t follows = 0; | |
3399 | ||
3400 | if (flush) | |
3401 | follows = in->snaprealm->get_snap_context().seq; | |
3402 | ||
9f95a23c | 3403 | auto m = make_message<MClientCaps>(op, |
7c673cae FG |
3404 | in->ino, |
3405 | 0, | |
3406 | cap->cap_id, cap->seq, | |
3407 | cap->implemented, | |
3408 | want, | |
3409 | flush, | |
3410 | cap->mseq, | |
3411 | cap_epoch_barrier); | |
3412 | m->caller_uid = in->cap_dirtier_uid; | |
3413 | m->caller_gid = in->cap_dirtier_gid; | |
3414 | ||
3415 | m->head.issue_seq = cap->issue_seq; | |
3416 | m->set_tid(flush_tid); | |
3417 | ||
3418 | m->head.uid = in->uid; | |
3419 | m->head.gid = in->gid; | |
3420 | m->head.mode = in->mode; | |
3421 | ||
3422 | m->head.nlink = in->nlink; | |
3423 | ||
3424 | if (flush & CEPH_CAP_XATTR_EXCL) { | |
11fdf7f2 | 3425 | encode(in->xattrs, m->xattrbl); |
7c673cae FG |
3426 | m->head.xattr_version = in->xattr_version; |
3427 | } | |
3428 | ||
3429 | m->size = in->size; | |
3430 | m->max_size = in->max_size; | |
3431 | m->truncate_seq = in->truncate_seq; | |
3432 | m->truncate_size = in->truncate_size; | |
3433 | m->mtime = in->mtime; | |
3434 | m->atime = in->atime; | |
3435 | m->ctime = in->ctime; | |
3436 | m->btime = in->btime; | |
3437 | m->time_warp_seq = in->time_warp_seq; | |
3438 | m->change_attr = in->change_attr; | |
eafe8130 TL |
3439 | |
3440 | if (!(flags & MClientCaps::FLAG_PENDING_CAPSNAP) && | |
3441 | !in->cap_snaps.empty() && | |
3442 | in->cap_snaps.rbegin()->second.flush_tid == 0) | |
3443 | flags |= MClientCaps::FLAG_PENDING_CAPSNAP; | |
3444 | m->flags = flags; | |
3445 | ||
7c673cae FG |
3446 | if (flush & CEPH_CAP_FILE_WR) { |
3447 | m->inline_version = in->inline_version; | |
3448 | m->inline_data = in->inline_data; | |
3449 | } | |
3450 | ||
3451 | in->reported_size = in->size; | |
3452 | m->set_snap_follows(follows); | |
3453 | cap->wanted = want; | |
3454 | if (cap == in->auth_cap) { | |
1911f103 TL |
3455 | if (want & CEPH_CAP_ANY_FILE_WR) { |
3456 | m->set_max_size(in->wanted_max_size); | |
3457 | in->requested_max_size = in->wanted_max_size; | |
3458 | ldout(cct, 15) << "auth cap, requesting max_size " << in->requested_max_size << dendl; | |
3459 | } else { | |
3460 | in->requested_max_size = 0; | |
3461 | ldout(cct, 15) << "auth cap, reset requested_max_size due to not wanting any file write cap" << dendl; | |
3462 | } | |
7c673cae FG |
3463 | } |
3464 | ||
3465 | if (!session->flushing_caps_tids.empty()) | |
3466 | m->set_oldest_flush_tid(*session->flushing_caps_tids.begin()); | |
3467 | ||
11fdf7f2 | 3468 | session->con->send_message2(std::move(m)); |
7c673cae FG |
3469 | } |
3470 | ||
31f18b77 FG |
3471 | static bool is_max_size_approaching(Inode *in) |
3472 | { | |
3473 | /* mds will adjust max size according to the reported size */ | |
3474 | if (in->flushing_caps & CEPH_CAP_FILE_WR) | |
3475 | return false; | |
3476 | if (in->size >= in->max_size) | |
3477 | return true; | |
3478 | /* half of previous max_size increment has been used */ | |
3479 | if (in->max_size > in->reported_size && | |
3480 | (in->size << 1) >= in->max_size + in->reported_size) | |
3481 | return true; | |
3482 | return false; | |
3483 | } | |
7c673cae | 3484 | |
11fdf7f2 TL |
3485 | static int adjust_caps_used_for_lazyio(int used, int issued, int implemented) |
3486 | { | |
3487 | if (!(used & (CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_BUFFER))) | |
3488 | return used; | |
3489 | if (!(implemented & CEPH_CAP_FILE_LAZYIO)) | |
3490 | return used; | |
3491 | ||
3492 | if (issued & CEPH_CAP_FILE_LAZYIO) { | |
3493 | if (!(issued & CEPH_CAP_FILE_CACHE)) { | |
3494 | used &= ~CEPH_CAP_FILE_CACHE; | |
3495 | used |= CEPH_CAP_FILE_LAZYIO; | |
3496 | } | |
3497 | if (!(issued & CEPH_CAP_FILE_BUFFER)) { | |
3498 | used &= ~CEPH_CAP_FILE_BUFFER; | |
3499 | used |= CEPH_CAP_FILE_LAZYIO; | |
3500 | } | |
3501 | } else { | |
3502 | if (!(implemented & CEPH_CAP_FILE_CACHE)) { | |
3503 | used &= ~CEPH_CAP_FILE_CACHE; | |
3504 | used |= CEPH_CAP_FILE_LAZYIO; | |
3505 | } | |
3506 | if (!(implemented & CEPH_CAP_FILE_BUFFER)) { | |
3507 | used &= ~CEPH_CAP_FILE_BUFFER; | |
3508 | used |= CEPH_CAP_FILE_LAZYIO; | |
3509 | } | |
3510 | } | |
3511 | return used; | |
3512 | } | |
3513 | ||
7c673cae FG |
3514 | /** |
3515 | * check_caps | |
3516 | * | |
3517 | * Examine currently used and wanted versus held caps. Release, flush or ack | |
3518 | * revoked caps to the MDS as appropriate. | |
3519 | * | |
3520 | * @param in the inode to check | |
3521 | * @param flags flags to apply to cap check | |
3522 | */ | |
3523 | void Client::check_caps(Inode *in, unsigned flags) | |
3524 | { | |
3525 | unsigned wanted = in->caps_wanted(); | |
3526 | unsigned used = get_caps_used(in); | |
3527 | unsigned cap_used; | |
3528 | ||
7c673cae FG |
3529 | int implemented; |
3530 | int issued = in->caps_issued(&implemented); | |
3531 | int revoking = implemented & ~issued; | |
3532 | ||
11fdf7f2 TL |
3533 | int orig_used = used; |
3534 | used = adjust_caps_used_for_lazyio(used, issued, implemented); | |
3535 | ||
7c673cae | 3536 | int retain = wanted | used | CEPH_CAP_PIN; |
a8e16298 TL |
3537 | if (!unmounting && in->nlink > 0) { |
3538 | if (wanted) { | |
7c673cae | 3539 | retain |= CEPH_CAP_ANY; |
a8e16298 TL |
3540 | } else if (in->is_dir() && |
3541 | (issued & CEPH_CAP_FILE_SHARED) && | |
3542 | (in->flags & I_COMPLETE)) { | |
3543 | // we do this here because we don't want to drop to Fs (and then | |
3544 | // drop the Fs if we do a create!) if that alone makes us send lookups | |
3545 | // to the MDS. Doing it in in->caps_wanted() has knock-on effects elsewhere | |
3546 | wanted = CEPH_CAP_ANY_SHARED | CEPH_CAP_FILE_EXCL; | |
3547 | retain |= wanted; | |
3548 | } else { | |
7c673cae | 3549 | retain |= CEPH_CAP_ANY_SHARED; |
a8e16298 TL |
3550 | // keep RD only if we didn't have the file open RW, |
3551 | // because then the mds would revoke it anyway to | |
3552 | // journal max_size=0. | |
3553 | if (in->max_size == 0) | |
3554 | retain |= CEPH_CAP_ANY_RD; | |
3555 | } | |
7c673cae FG |
3556 | } |
3557 | ||
11fdf7f2 | 3558 | ldout(cct, 10) << __func__ << " on " << *in |
7c673cae FG |
3559 | << " wanted " << ccap_string(wanted) |
3560 | << " used " << ccap_string(used) | |
3561 | << " issued " << ccap_string(issued) | |
3562 | << " revoking " << ccap_string(revoking) | |
3563 | << " flags=" << flags | |
3564 | << dendl; | |
3565 | ||
3566 | if (in->snapid != CEPH_NOSNAP) | |
3567 | return; //snap caps last forever, can't write | |
3568 | ||
3569 | if (in->caps.empty()) | |
3570 | return; // guard if at end of func | |
3571 | ||
11fdf7f2 TL |
3572 | if (!(orig_used & CEPH_CAP_FILE_BUFFER) && |
3573 | (revoking & used & (CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO))) { | |
94b18763 | 3574 | if (_release(in)) |
11fdf7f2 | 3575 | used &= ~(CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO); |
94b18763 | 3576 | } |
7c673cae | 3577 | |
7c673cae | 3578 | |
11fdf7f2 TL |
3579 | for (auto &p : in->caps) { |
3580 | mds_rank_t mds = p.first; | |
3581 | Cap &cap = p.second; | |
7c673cae | 3582 | |
11fdf7f2 | 3583 | MetaSession *session = &mds_sessions.at(mds); |
7c673cae FG |
3584 | |
3585 | cap_used = used; | |
11fdf7f2 | 3586 | if (in->auth_cap && &cap != in->auth_cap) |
7c673cae FG |
3587 | cap_used &= ~in->auth_cap->issued; |
3588 | ||
11fdf7f2 | 3589 | revoking = cap.implemented & ~cap.issued; |
7c673cae FG |
3590 | |
3591 | ldout(cct, 10) << " cap mds." << mds | |
11fdf7f2 TL |
3592 | << " issued " << ccap_string(cap.issued) |
3593 | << " implemented " << ccap_string(cap.implemented) | |
7c673cae FG |
3594 | << " revoking " << ccap_string(revoking) << dendl; |
3595 | ||
3596 | if (in->wanted_max_size > in->max_size && | |
3597 | in->wanted_max_size > in->requested_max_size && | |
11fdf7f2 | 3598 | &cap == in->auth_cap) |
7c673cae FG |
3599 | goto ack; |
3600 | ||
3601 | /* approaching file_max? */ | |
11fdf7f2 TL |
3602 | if ((cap.issued & CEPH_CAP_FILE_WR) && |
3603 | &cap == in->auth_cap && | |
31f18b77 | 3604 | is_max_size_approaching(in)) { |
7c673cae | 3605 | ldout(cct, 10) << "size " << in->size << " approaching max_size " << in->max_size |
31f18b77 | 3606 | << ", reported " << in->reported_size << dendl; |
7c673cae FG |
3607 | goto ack; |
3608 | } | |
3609 | ||
3610 | /* completed revocation? */ | |
3611 | if (revoking && (revoking & cap_used) == 0) { | |
11fdf7f2 | 3612 | ldout(cct, 10) << "completed revocation of " << ccap_string(cap.implemented & ~cap.issued) << dendl; |
7c673cae FG |
3613 | goto ack; |
3614 | } | |
3615 | ||
3616 | /* want more caps from mds? */ | |
11fdf7f2 | 3617 | if (wanted & ~(cap.wanted | cap.issued)) |
7c673cae FG |
3618 | goto ack; |
3619 | ||
3620 | if (!revoking && unmounting && (cap_used == 0)) | |
3621 | goto ack; | |
3622 | ||
11fdf7f2 | 3623 | if ((cap.issued & ~retain) == 0 && // and we don't have anything we wouldn't like |
a8e16298 | 3624 | !in->dirty_caps) // and we have no dirty caps |
7c673cae FG |
3625 | continue; |
3626 | ||
11fdf7f2 | 3627 | if (!(flags & CHECK_CAPS_NODELAY)) { |
7c673cae | 3628 | ldout(cct, 10) << "delaying cap release" << dendl; |
11fdf7f2 | 3629 | cap_delay_requeue(in); |
7c673cae FG |
3630 | continue; |
3631 | } | |
3632 | ||
3633 | ack: | |
eafe8130 TL |
3634 | if (&cap == in->auth_cap) { |
3635 | if (in->flags & I_KICK_FLUSH) { | |
3636 | ldout(cct, 20) << " reflushing caps (check_caps) on " << *in | |
3637 | << " to mds." << mds << dendl; | |
3638 | kick_flushing_caps(in, session); | |
3639 | } | |
3640 | if (!in->cap_snaps.empty() && | |
3641 | in->cap_snaps.rbegin()->second.flush_tid == 0) | |
3642 | flush_snaps(in); | |
7c673cae FG |
3643 | } |
3644 | ||
3645 | int flushing; | |
e306af50 | 3646 | int msg_flags = 0; |
7c673cae | 3647 | ceph_tid_t flush_tid; |
11fdf7f2 | 3648 | if (in->auth_cap == &cap && in->dirty_caps) { |
7c673cae | 3649 | flushing = mark_caps_flushing(in, &flush_tid); |
e306af50 TL |
3650 | if (flags & CHECK_CAPS_SYNCHRONOUS) |
3651 | msg_flags |= MClientCaps::FLAG_SYNC; | |
7c673cae FG |
3652 | } else { |
3653 | flushing = 0; | |
3654 | flush_tid = 0; | |
3655 | } | |
3656 | ||
eafe8130 TL |
3657 | send_cap(in, session, &cap, msg_flags, cap_used, wanted, retain, |
3658 | flushing, flush_tid); | |
7c673cae FG |
3659 | } |
3660 | } | |
3661 | ||
3662 | ||
3663 | void Client::queue_cap_snap(Inode *in, SnapContext& old_snapc) | |
3664 | { | |
3665 | int used = get_caps_used(in); | |
3666 | int dirty = in->caps_dirty(); | |
11fdf7f2 | 3667 | ldout(cct, 10) << __func__ << " " << *in << " snapc " << old_snapc << " used " << ccap_string(used) << dendl; |
7c673cae FG |
3668 | |
3669 | if (in->cap_snaps.size() && | |
3670 | in->cap_snaps.rbegin()->second.writing) { | |
11fdf7f2 | 3671 | ldout(cct, 10) << __func__ << " already have pending cap_snap on " << *in << dendl; |
7c673cae FG |
3672 | return; |
3673 | } else if (in->caps_dirty() || | |
3674 | (used & CEPH_CAP_FILE_WR) || | |
3675 | (dirty & CEPH_CAP_ANY_WR)) { | |
3676 | const auto &capsnapem = in->cap_snaps.emplace(std::piecewise_construct, std::make_tuple(old_snapc.seq), std::make_tuple(in)); | |
11fdf7f2 | 3677 | ceph_assert(capsnapem.second); /* element inserted */ |
7c673cae FG |
3678 | CapSnap &capsnap = capsnapem.first->second; |
3679 | capsnap.context = old_snapc; | |
3680 | capsnap.issued = in->caps_issued(); | |
3681 | capsnap.dirty = in->caps_dirty(); | |
7f7e6c64 | 3682 | |
7c673cae | 3683 | capsnap.dirty_data = (used & CEPH_CAP_FILE_BUFFER); |
7f7e6c64 | 3684 | |
7c673cae FG |
3685 | capsnap.uid = in->uid; |
3686 | capsnap.gid = in->gid; | |
3687 | capsnap.mode = in->mode; | |
3688 | capsnap.btime = in->btime; | |
3689 | capsnap.xattrs = in->xattrs; | |
3690 | capsnap.xattr_version = in->xattr_version; | |
11fdf7f2 TL |
3691 | capsnap.cap_dirtier_uid = in->cap_dirtier_uid; |
3692 | capsnap.cap_dirtier_gid = in->cap_dirtier_gid; | |
7f7e6c64 | 3693 | |
7c673cae | 3694 | if (used & CEPH_CAP_FILE_WR) { |
11fdf7f2 | 3695 | ldout(cct, 10) << __func__ << " WR used on " << *in << dendl; |
7c673cae FG |
3696 | capsnap.writing = 1; |
3697 | } else { | |
3698 | finish_cap_snap(in, capsnap, used); | |
3699 | } | |
3700 | } else { | |
11fdf7f2 | 3701 | ldout(cct, 10) << __func__ << " not dirty|writing on " << *in << dendl; |
7c673cae FG |
3702 | } |
3703 | } | |
3704 | ||
3705 | void Client::finish_cap_snap(Inode *in, CapSnap &capsnap, int used) | |
3706 | { | |
11fdf7f2 | 3707 | ldout(cct, 10) << __func__ << " " << *in << " capsnap " << (void *)&capsnap << " used " << ccap_string(used) << dendl; |
7c673cae FG |
3708 | capsnap.size = in->size; |
3709 | capsnap.mtime = in->mtime; | |
3710 | capsnap.atime = in->atime; | |
3711 | capsnap.ctime = in->ctime; | |
3712 | capsnap.time_warp_seq = in->time_warp_seq; | |
3713 | capsnap.change_attr = in->change_attr; | |
7c673cae FG |
3714 | capsnap.dirty |= in->caps_dirty(); |
3715 | ||
11fdf7f2 TL |
3716 | /* Only reset it if it wasn't set before */ |
3717 | if (capsnap.cap_dirtier_uid == -1) { | |
3718 | capsnap.cap_dirtier_uid = in->cap_dirtier_uid; | |
3719 | capsnap.cap_dirtier_gid = in->cap_dirtier_gid; | |
3720 | } | |
3721 | ||
7c673cae FG |
3722 | if (capsnap.dirty & CEPH_CAP_FILE_WR) { |
3723 | capsnap.inline_data = in->inline_data; | |
3724 | capsnap.inline_version = in->inline_version; | |
3725 | } | |
3726 | ||
3727 | if (used & CEPH_CAP_FILE_BUFFER) { | |
7f7e6c64 | 3728 | capsnap.writing = 1; |
11fdf7f2 | 3729 | ldout(cct, 10) << __func__ << " " << *in << " cap_snap " << &capsnap << " used " << used |
7c673cae FG |
3730 | << " WRBUFFER, delaying" << dendl; |
3731 | } else { | |
3732 | capsnap.dirty_data = 0; | |
3733 | flush_snaps(in); | |
3734 | } | |
3735 | } | |
3736 | ||
eafe8130 TL |
3737 | void Client::send_flush_snap(Inode *in, MetaSession *session, |
3738 | snapid_t follows, CapSnap& capsnap) | |
3739 | { | |
9f95a23c TL |
3740 | auto m = make_message<MClientCaps>(CEPH_CAP_OP_FLUSHSNAP, |
3741 | in->ino, in->snaprealm->ino, 0, | |
3742 | in->auth_cap->mseq, cap_epoch_barrier); | |
eafe8130 TL |
3743 | m->caller_uid = capsnap.cap_dirtier_uid; |
3744 | m->caller_gid = capsnap.cap_dirtier_gid; | |
3745 | ||
3746 | m->set_client_tid(capsnap.flush_tid); | |
3747 | m->head.snap_follows = follows; | |
3748 | ||
3749 | m->head.caps = capsnap.issued; | |
3750 | m->head.dirty = capsnap.dirty; | |
3751 | ||
3752 | m->head.uid = capsnap.uid; | |
3753 | m->head.gid = capsnap.gid; | |
3754 | m->head.mode = capsnap.mode; | |
3755 | m->btime = capsnap.btime; | |
3756 | ||
3757 | m->size = capsnap.size; | |
3758 | ||
3759 | m->head.xattr_version = capsnap.xattr_version; | |
3760 | encode(capsnap.xattrs, m->xattrbl); | |
3761 | ||
3762 | m->ctime = capsnap.ctime; | |
3763 | m->btime = capsnap.btime; | |
3764 | m->mtime = capsnap.mtime; | |
3765 | m->atime = capsnap.atime; | |
3766 | m->time_warp_seq = capsnap.time_warp_seq; | |
3767 | m->change_attr = capsnap.change_attr; | |
3768 | ||
3769 | if (capsnap.dirty & CEPH_CAP_FILE_WR) { | |
3770 | m->inline_version = in->inline_version; | |
3771 | m->inline_data = in->inline_data; | |
3772 | } | |
3773 | ||
3774 | ceph_assert(!session->flushing_caps_tids.empty()); | |
3775 | m->set_oldest_flush_tid(*session->flushing_caps_tids.begin()); | |
3776 | ||
3777 | session->con->send_message2(std::move(m)); | |
3778 | } | |
3779 | ||
3780 | void Client::flush_snaps(Inode *in) | |
7c673cae | 3781 | { |
eafe8130 | 3782 | ldout(cct, 10) << "flush_snaps on " << *in << dendl; |
11fdf7f2 | 3783 | ceph_assert(in->cap_snaps.size()); |
7c673cae FG |
3784 | |
3785 | // pick auth mds | |
11fdf7f2 | 3786 | ceph_assert(in->auth_cap); |
7c673cae | 3787 | MetaSession *session = in->auth_cap->session; |
7c673cae FG |
3788 | |
3789 | for (auto &p : in->cap_snaps) { | |
3790 | CapSnap &capsnap = p.second; | |
eafe8130 TL |
3791 | // only do new flush |
3792 | if (capsnap.flush_tid > 0) | |
3793 | continue; | |
7c673cae FG |
3794 | |
3795 | ldout(cct, 10) << "flush_snaps mds." << session->mds_num | |
3796 | << " follows " << p.first | |
3797 | << " size " << capsnap.size | |
3798 | << " mtime " << capsnap.mtime | |
3799 | << " dirty_data=" << capsnap.dirty_data | |
3800 | << " writing=" << capsnap.writing | |
3801 | << " on " << *in << dendl; | |
3802 | if (capsnap.dirty_data || capsnap.writing) | |
eafe8130 | 3803 | break; |
7f7e6c64 | 3804 | |
eafe8130 TL |
3805 | capsnap.flush_tid = ++last_flush_tid; |
3806 | session->flushing_caps_tids.insert(capsnap.flush_tid); | |
3807 | in->flushing_cap_tids[capsnap.flush_tid] = 0; | |
3808 | if (!in->flushing_cap_item.is_on_list()) | |
3809 | session->flushing_caps.push_back(&in->flushing_cap_item); | |
7c673cae | 3810 | |
eafe8130 | 3811 | send_flush_snap(in, session, p.first, capsnap); |
7c673cae FG |
3812 | } |
3813 | } | |
3814 | ||
9f95a23c | 3815 | void Client::wait_on_list(list<ceph::condition_variable*>& ls) |
7c673cae | 3816 | { |
9f95a23c | 3817 | ceph::condition_variable cond; |
7c673cae | 3818 | ls.push_back(&cond); |
9f95a23c TL |
3819 | std::unique_lock l{client_lock, std::adopt_lock}; |
3820 | cond.wait(l); | |
3821 | l.release(); | |
7c673cae FG |
3822 | ls.remove(&cond); |
3823 | } | |
3824 | ||
9f95a23c | 3825 | void Client::signal_cond_list(list<ceph::condition_variable*>& ls) |
7c673cae | 3826 | { |
9f95a23c TL |
3827 | for (auto cond : ls) { |
3828 | cond->notify_all(); | |
3829 | } | |
7c673cae FG |
3830 | } |
3831 | ||
3832 | void Client::wait_on_context_list(list<Context*>& ls) | |
3833 | { | |
9f95a23c | 3834 | ceph::condition_variable cond; |
7c673cae FG |
3835 | bool done = false; |
3836 | int r; | |
9f95a23c TL |
3837 | ls.push_back(new C_Cond(cond, &done, &r)); |
3838 | std::unique_lock l{client_lock, std::adopt_lock}; | |
3839 | cond.wait(l, [&done] { return done;}); | |
3840 | l.release(); | |
7c673cae FG |
3841 | } |
3842 | ||
3843 | void Client::signal_context_list(list<Context*>& ls) | |
3844 | { | |
3845 | while (!ls.empty()) { | |
3846 | ls.front()->complete(0); | |
3847 | ls.pop_front(); | |
3848 | } | |
3849 | } | |
3850 | ||
a8e16298 | 3851 | void Client::wake_up_session_caps(MetaSession *s, bool reconnect) |
7c673cae | 3852 | { |
11fdf7f2 TL |
3853 | for (const auto &cap : s->caps) { |
3854 | auto &in = cap->inode; | |
a8e16298 | 3855 | if (reconnect) { |
11fdf7f2 TL |
3856 | in.requested_max_size = 0; |
3857 | in.wanted_max_size = 0; | |
a8e16298 TL |
3858 | } else { |
3859 | if (cap->gen < s->cap_gen) { | |
3860 | // mds did not re-issue stale cap. | |
3861 | cap->issued = cap->implemented = CEPH_CAP_PIN; | |
3862 | // make sure mds knows what we want. | |
11fdf7f2 TL |
3863 | if (in.caps_file_wanted() & ~cap->wanted) |
3864 | in.flags |= I_CAP_DROPPED; | |
a8e16298 TL |
3865 | } |
3866 | } | |
11fdf7f2 | 3867 | signal_cond_list(in.waitfor_caps); |
7c673cae FG |
3868 | } |
3869 | } | |
3870 | ||
3871 | ||
3872 | // flush dirty data (from objectcache) | |
3873 | ||
3874 | class C_Client_CacheInvalidate : public Context { | |
3875 | private: | |
3876 | Client *client; | |
3877 | vinodeno_t ino; | |
3878 | int64_t offset, length; | |
3879 | public: | |
3880 | C_Client_CacheInvalidate(Client *c, Inode *in, int64_t off, int64_t len) : | |
3881 | client(c), offset(off), length(len) { | |
3882 | if (client->use_faked_inos()) | |
3883 | ino = vinodeno_t(in->faked_ino, CEPH_NOSNAP); | |
3884 | else | |
3885 | ino = in->vino(); | |
3886 | } | |
3887 | void finish(int r) override { | |
3888 | // _async_invalidate takes the lock when it needs to, call this back from outside of lock. | |
9f95a23c | 3889 | ceph_assert(ceph_mutex_is_not_locked_by_me(client->client_lock)); |
7c673cae FG |
3890 | client->_async_invalidate(ino, offset, length); |
3891 | } | |
3892 | }; | |
3893 | ||
3894 | void Client::_async_invalidate(vinodeno_t ino, int64_t off, int64_t len) | |
3895 | { | |
3896 | if (unmounting) | |
3897 | return; | |
11fdf7f2 | 3898 | ldout(cct, 10) << __func__ << " " << ino << " " << off << "~" << len << dendl; |
7c673cae FG |
3899 | ino_invalidate_cb(callback_handle, ino, off, len); |
3900 | } | |
3901 | ||
3902 | void Client::_schedule_invalidate_callback(Inode *in, int64_t off, int64_t len) { | |
3903 | ||
3904 | if (ino_invalidate_cb) | |
3905 | // we queue the invalidate, which calls the callback and decrements the ref | |
3906 | async_ino_invalidator.queue(new C_Client_CacheInvalidate(this, in, off, len)); | |
3907 | } | |
3908 | ||
3909 | void Client::_invalidate_inode_cache(Inode *in) | |
3910 | { | |
11fdf7f2 | 3911 | ldout(cct, 10) << __func__ << " " << *in << dendl; |
7c673cae FG |
3912 | |
3913 | // invalidate our userspace inode cache | |
94b18763 | 3914 | if (cct->_conf->client_oc) { |
7c673cae | 3915 | objectcacher->release_set(&in->oset); |
94b18763 FG |
3916 | if (!objectcacher->set_is_empty(&in->oset)) |
3917 | lderr(cct) << "failed to invalidate cache for " << *in << dendl; | |
3918 | } | |
7c673cae FG |
3919 | |
3920 | _schedule_invalidate_callback(in, 0, 0); | |
3921 | } | |
3922 | ||
3923 | void Client::_invalidate_inode_cache(Inode *in, int64_t off, int64_t len) | |
3924 | { | |
11fdf7f2 | 3925 | ldout(cct, 10) << __func__ << " " << *in << " " << off << "~" << len << dendl; |
7c673cae FG |
3926 | |
3927 | // invalidate our userspace inode cache | |
3928 | if (cct->_conf->client_oc) { | |
3929 | vector<ObjectExtent> ls; | |
3930 | Striper::file_to_extents(cct, in->ino, &in->layout, off, len, in->truncate_size, ls); | |
28e407b8 | 3931 | objectcacher->discard_writeback(&in->oset, ls, nullptr); |
7c673cae FG |
3932 | } |
3933 | ||
3934 | _schedule_invalidate_callback(in, off, len); | |
3935 | } | |
3936 | ||
3937 | bool Client::_release(Inode *in) | |
3938 | { | |
3939 | ldout(cct, 20) << "_release " << *in << dendl; | |
3940 | if (in->cap_refs[CEPH_CAP_FILE_CACHE] == 0) { | |
3941 | _invalidate_inode_cache(in); | |
3942 | return true; | |
3943 | } | |
3944 | return false; | |
3945 | } | |
3946 | ||
3947 | bool Client::_flush(Inode *in, Context *onfinish) | |
3948 | { | |
3949 | ldout(cct, 10) << "_flush " << *in << dendl; | |
3950 | ||
3951 | if (!in->oset.dirty_or_tx) { | |
3952 | ldout(cct, 10) << " nothing to flush" << dendl; | |
3953 | onfinish->complete(0); | |
3954 | return true; | |
3955 | } | |
3956 | ||
3957 | if (objecter->osdmap_pool_full(in->layout.pool_id)) { | |
1adf2230 | 3958 | ldout(cct, 8) << __func__ << ": FULL, purging for ENOSPC" << dendl; |
7c673cae FG |
3959 | objectcacher->purge_set(&in->oset); |
3960 | if (onfinish) { | |
3961 | onfinish->complete(-ENOSPC); | |
3962 | } | |
3963 | return true; | |
3964 | } | |
3965 | ||
3966 | return objectcacher->flush_set(&in->oset, onfinish); | |
3967 | } | |
3968 | ||
3969 | void Client::_flush_range(Inode *in, int64_t offset, uint64_t size) | |
3970 | { | |
9f95a23c | 3971 | ceph_assert(ceph_mutex_is_locked(client_lock)); |
7c673cae FG |
3972 | if (!in->oset.dirty_or_tx) { |
3973 | ldout(cct, 10) << " nothing to flush" << dendl; | |
3974 | return; | |
3975 | } | |
3976 | ||
11fdf7f2 | 3977 | C_SaferCond onflush("Client::_flush_range flock"); |
7c673cae | 3978 | bool ret = objectcacher->file_flush(&in->oset, &in->layout, in->snaprealm->get_snap_context(), |
11fdf7f2 | 3979 | offset, size, &onflush); |
7c673cae FG |
3980 | if (!ret) { |
3981 | // wait for flush | |
9f95a23c | 3982 | client_lock.unlock(); |
11fdf7f2 | 3983 | onflush.wait(); |
9f95a23c | 3984 | client_lock.lock(); |
7c673cae FG |
3985 | } |
3986 | } | |
3987 | ||
3988 | void Client::flush_set_callback(ObjectCacher::ObjectSet *oset) | |
3989 | { | |
11fdf7f2 | 3990 | // std::lock_guard l(client_lock); |
9f95a23c | 3991 | ceph_assert(ceph_mutex_is_locked(client_lock)); // will be called via dispatch() -> objecter -> ... |
7c673cae | 3992 | Inode *in = static_cast<Inode *>(oset->parent); |
11fdf7f2 | 3993 | ceph_assert(in); |
7c673cae FG |
3994 | _flushed(in); |
3995 | } | |
3996 | ||
3997 | void Client::_flushed(Inode *in) | |
3998 | { | |
3999 | ldout(cct, 10) << "_flushed " << *in << dendl; | |
4000 | ||
4001 | put_cap_ref(in, CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_BUFFER); | |
4002 | } | |
4003 | ||
4004 | ||
4005 | ||
4006 | // checks common to add_update_cap, handle_cap_grant | |
11fdf7f2 | 4007 | void Client::check_cap_issue(Inode *in, unsigned issued) |
7c673cae FG |
4008 | { |
4009 | unsigned had = in->caps_issued(); | |
4010 | ||
4011 | if ((issued & CEPH_CAP_FILE_CACHE) && | |
4012 | !(had & CEPH_CAP_FILE_CACHE)) | |
4013 | in->cache_gen++; | |
4014 | ||
f91f0fd5 TL |
4015 | if ((issued & CEPH_CAP_FILE_SHARED) != |
4016 | (had & CEPH_CAP_FILE_SHARED)) { | |
4017 | if (issued & CEPH_CAP_FILE_SHARED) | |
4018 | in->shared_gen++; | |
7c673cae FG |
4019 | if (in->is_dir()) |
4020 | clear_dir_complete_and_ordered(in, true); | |
4021 | } | |
4022 | } | |
4023 | ||
4024 | void Client::add_update_cap(Inode *in, MetaSession *mds_session, uint64_t cap_id, | |
a8e16298 TL |
4025 | unsigned issued, unsigned wanted, unsigned seq, unsigned mseq, |
4026 | inodeno_t realm, int flags, const UserPerm& cap_perms) | |
7c673cae | 4027 | { |
11fdf7f2 TL |
4028 | if (!in->is_any_caps()) { |
4029 | ceph_assert(in->snaprealm == 0); | |
4030 | in->snaprealm = get_snap_realm(realm); | |
4031 | in->snaprealm->inodes_with_caps.push_back(&in->snaprealm_item); | |
4032 | ldout(cct, 15) << __func__ << " first one, opened snaprealm " << in->snaprealm << dendl; | |
4033 | } else { | |
4034 | ceph_assert(in->snaprealm); | |
4035 | if ((flags & CEPH_CAP_FLAG_AUTH) && | |
4036 | realm != inodeno_t(-1) && in->snaprealm->ino != realm) { | |
4037 | in->snaprealm_item.remove_myself(); | |
4038 | auto oldrealm = in->snaprealm; | |
4039 | in->snaprealm = get_snap_realm(realm); | |
4040 | in->snaprealm->inodes_with_caps.push_back(&in->snaprealm_item); | |
4041 | put_snap_realm(oldrealm); | |
4042 | } | |
4043 | } | |
4044 | ||
7c673cae | 4045 | mds_rank_t mds = mds_session->mds_num; |
11fdf7f2 TL |
4046 | const auto &capem = in->caps.emplace(std::piecewise_construct, std::forward_as_tuple(mds), std::forward_as_tuple(*in, mds_session)); |
4047 | Cap &cap = capem.first->second; | |
4048 | if (!capem.second) { | |
4049 | if (cap.gen < mds_session->cap_gen) | |
4050 | cap.issued = cap.implemented = CEPH_CAP_PIN; | |
7c673cae FG |
4051 | |
4052 | /* | |
4053 | * auth mds of the inode changed. we received the cap export | |
4054 | * message, but still haven't received the cap import message. | |
4055 | * handle_cap_export() updated the new auth MDS' cap. | |
4056 | * | |
4057 | * "ceph_seq_cmp(seq, cap->seq) <= 0" means we are processing | |
4058 | * a message that was send before the cap import message. So | |
4059 | * don't remove caps. | |
4060 | */ | |
11fdf7f2 | 4061 | if (ceph_seq_cmp(seq, cap.seq) <= 0) { |
92f5a8d4 TL |
4062 | if (&cap != in->auth_cap) |
4063 | ldout(cct, 0) << "WARNING: " << "inode " << *in << " caps on mds." << mds << " != auth_cap." << dendl; | |
4064 | ||
11fdf7f2 TL |
4065 | ceph_assert(cap.cap_id == cap_id); |
4066 | seq = cap.seq; | |
4067 | mseq = cap.mseq; | |
4068 | issued |= cap.issued; | |
7c673cae FG |
4069 | flags |= CEPH_CAP_FLAG_AUTH; |
4070 | } | |
7c673cae FG |
4071 | } |
4072 | ||
11fdf7f2 | 4073 | check_cap_issue(in, issued); |
7c673cae FG |
4074 | |
4075 | if (flags & CEPH_CAP_FLAG_AUTH) { | |
11fdf7f2 | 4076 | if (in->auth_cap != &cap && |
7c673cae FG |
4077 | (!in->auth_cap || ceph_seq_cmp(in->auth_cap->mseq, mseq) < 0)) { |
4078 | if (in->auth_cap && in->flushing_cap_item.is_on_list()) { | |
11fdf7f2 | 4079 | ldout(cct, 10) << __func__ << " changing auth cap: " |
7c673cae FG |
4080 | << "add myself to new auth MDS' flushing caps list" << dendl; |
4081 | adjust_session_flushing_caps(in, in->auth_cap->session, mds_session); | |
4082 | } | |
11fdf7f2 | 4083 | in->auth_cap = ∩ |
7c673cae FG |
4084 | } |
4085 | } | |
4086 | ||
11fdf7f2 TL |
4087 | unsigned old_caps = cap.issued; |
4088 | cap.cap_id = cap_id; | |
4089 | cap.issued = issued; | |
4090 | cap.implemented |= issued; | |
4091 | if (ceph_seq_cmp(mseq, cap.mseq) > 0) | |
4092 | cap.wanted = wanted; | |
a8e16298 | 4093 | else |
11fdf7f2 TL |
4094 | cap.wanted |= wanted; |
4095 | cap.seq = seq; | |
4096 | cap.issue_seq = seq; | |
4097 | cap.mseq = mseq; | |
4098 | cap.gen = mds_session->cap_gen; | |
4099 | cap.latest_perms = cap_perms; | |
4100 | ldout(cct, 10) << __func__ << " issued " << ccap_string(old_caps) << " -> " << ccap_string(cap.issued) | |
4101 | << " from mds." << mds | |
4102 | << " on " << *in | |
4103 | << dendl; | |
4104 | ||
4105 | if ((issued & ~old_caps) && in->auth_cap == &cap) { | |
7c673cae | 4106 | // non-auth MDS is revoking the newly grant caps ? |
11fdf7f2 TL |
4107 | for (auto &p : in->caps) { |
4108 | if (&p.second == &cap) | |
7c673cae | 4109 | continue; |
11fdf7f2 | 4110 | if (p.second.implemented & ~p.second.issued & issued) { |
7c673cae FG |
4111 | check_caps(in, CHECK_CAPS_NODELAY); |
4112 | break; | |
4113 | } | |
4114 | } | |
4115 | } | |
4116 | ||
4117 | if (issued & ~old_caps) | |
4118 | signal_cond_list(in->waitfor_caps); | |
4119 | } | |
4120 | ||
4121 | void Client::remove_cap(Cap *cap, bool queue_release) | |
4122 | { | |
11fdf7f2 | 4123 | auto &in = cap->inode; |
7c673cae FG |
4124 | MetaSession *session = cap->session; |
4125 | mds_rank_t mds = cap->session->mds_num; | |
4126 | ||
11fdf7f2 | 4127 | ldout(cct, 10) << __func__ << " mds." << mds << " on " << in << dendl; |
7c673cae FG |
4128 | |
4129 | if (queue_release) { | |
4130 | session->enqueue_cap_release( | |
11fdf7f2 | 4131 | in.ino, |
7c673cae FG |
4132 | cap->cap_id, |
4133 | cap->issue_seq, | |
4134 | cap->mseq, | |
4135 | cap_epoch_barrier); | |
4136 | } | |
4137 | ||
11fdf7f2 TL |
4138 | if (in.auth_cap == cap) { |
4139 | if (in.flushing_cap_item.is_on_list()) { | |
7c673cae | 4140 | ldout(cct, 10) << " removing myself from flushing_cap list" << dendl; |
11fdf7f2 | 4141 | in.flushing_cap_item.remove_myself(); |
7c673cae | 4142 | } |
11fdf7f2 | 4143 | in.auth_cap = NULL; |
7c673cae | 4144 | } |
11fdf7f2 TL |
4145 | size_t n = in.caps.erase(mds); |
4146 | ceph_assert(n == 1); | |
7c673cae FG |
4147 | cap = nullptr; |
4148 | ||
11fdf7f2 TL |
4149 | if (!in.is_any_caps()) { |
4150 | ldout(cct, 15) << __func__ << " last one, closing snaprealm " << in.snaprealm << dendl; | |
4151 | in.snaprealm_item.remove_myself(); | |
4152 | put_snap_realm(in.snaprealm); | |
4153 | in.snaprealm = 0; | |
7c673cae FG |
4154 | } |
4155 | } | |
4156 | ||
4157 | void Client::remove_all_caps(Inode *in) | |
4158 | { | |
4159 | while (!in->caps.empty()) | |
11fdf7f2 | 4160 | remove_cap(&in->caps.begin()->second, true); |
7c673cae FG |
4161 | } |
4162 | ||
f6b5b4d7 | 4163 | void Client::remove_session_caps(MetaSession *s, int err) |
7c673cae | 4164 | { |
11fdf7f2 | 4165 | ldout(cct, 10) << __func__ << " mds." << s->mds_num << dendl; |
7c673cae FG |
4166 | |
4167 | while (s->caps.size()) { | |
4168 | Cap *cap = *s->caps.begin(); | |
11fdf7f2 | 4169 | InodeRef in(&cap->inode); |
eafe8130 | 4170 | bool dirty_caps = false; |
7c673cae | 4171 | if (in->auth_cap == cap) { |
7c673cae FG |
4172 | dirty_caps = in->dirty_caps | in->flushing_caps; |
4173 | in->wanted_max_size = 0; | |
4174 | in->requested_max_size = 0; | |
f6b5b4d7 TL |
4175 | if (in->has_any_filelocks()) |
4176 | in->flags |= I_ERROR_FILELOCK; | |
7c673cae | 4177 | } |
f6b5b4d7 | 4178 | auto caps = cap->implemented; |
a8e16298 TL |
4179 | if (cap->wanted | cap->issued) |
4180 | in->flags |= I_CAP_DROPPED; | |
7c673cae | 4181 | remove_cap(cap, false); |
eafe8130 | 4182 | in->cap_snaps.clear(); |
7c673cae | 4183 | if (dirty_caps) { |
11fdf7f2 | 4184 | lderr(cct) << __func__ << " still has dirty|flushing caps on " << *in << dendl; |
7c673cae FG |
4185 | if (in->flushing_caps) { |
4186 | num_flushing_caps--; | |
4187 | in->flushing_cap_tids.clear(); | |
4188 | } | |
4189 | in->flushing_caps = 0; | |
28e407b8 | 4190 | in->mark_caps_clean(); |
11fdf7f2 | 4191 | put_inode(in.get()); |
7c673cae | 4192 | } |
f6b5b4d7 TL |
4193 | caps &= CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_BUFFER; |
4194 | if (caps && !in->caps_issued_mask(caps, true)) { | |
4195 | if (err == -EBLACKLISTED) { | |
4196 | if (in->oset.dirty_or_tx) { | |
4197 | lderr(cct) << __func__ << " still has dirty data on " << *in << dendl; | |
4198 | in->set_async_err(err); | |
4199 | } | |
4200 | objectcacher->purge_set(&in->oset); | |
4201 | } else { | |
4202 | objectcacher->release_set(&in->oset); | |
4203 | } | |
4204 | _schedule_invalidate_callback(in.get(), 0, 0); | |
4205 | } | |
4206 | ||
a8e16298 | 4207 | signal_cond_list(in->waitfor_caps); |
7c673cae FG |
4208 | } |
4209 | s->flushing_caps_tids.clear(); | |
9f95a23c | 4210 | sync_cond.notify_all(); |
7c673cae FG |
4211 | } |
4212 | ||
91327a77 | 4213 | int Client::_do_remount(bool retry_on_error) |
b32b8144 | 4214 | { |
adb31ebb | 4215 | uint64_t max_retries = cct->_conf.get_val<uint64_t>("mds_max_retries_on_remount_failure"); |
91327a77 | 4216 | |
b32b8144 FG |
4217 | errno = 0; |
4218 | int r = remount_cb(callback_handle); | |
91327a77 AA |
4219 | if (r == 0) { |
4220 | retries_on_invalidate = 0; | |
4221 | } else { | |
b32b8144 FG |
4222 | int e = errno; |
4223 | client_t whoami = get_nodeid(); | |
4224 | if (r == -1) { | |
4225 | lderr(cct) << | |
4226 | "failed to remount (to trim kernel dentries): " | |
4227 | "errno = " << e << " (" << strerror(e) << ")" << dendl; | |
4228 | } else { | |
4229 | lderr(cct) << | |
4230 | "failed to remount (to trim kernel dentries): " | |
4231 | "return code = " << r << dendl; | |
4232 | } | |
91327a77 | 4233 | bool should_abort = |
11fdf7f2 TL |
4234 | (cct->_conf.get_val<bool>("client_die_on_failed_remount") || |
4235 | cct->_conf.get_val<bool>("client_die_on_failed_dentry_invalidate")) && | |
91327a77 | 4236 | !(retry_on_error && (++retries_on_invalidate < max_retries)); |
b32b8144 FG |
4237 | if (should_abort && !unmounting) { |
4238 | lderr(cct) << "failed to remount for kernel dentry trimming; quitting!" << dendl; | |
4239 | ceph_abort(); | |
4240 | } | |
4241 | } | |
4242 | return r; | |
4243 | } | |
4244 | ||
7c673cae FG |
4245 | class C_Client_Remount : public Context { |
4246 | private: | |
4247 | Client *client; | |
4248 | public: | |
4249 | explicit C_Client_Remount(Client *c) : client(c) {} | |
4250 | void finish(int r) override { | |
11fdf7f2 | 4251 | ceph_assert(r == 0); |
91327a77 | 4252 | client->_do_remount(true); |
7c673cae FG |
4253 | } |
4254 | }; | |
4255 | ||
4256 | void Client::_invalidate_kernel_dcache() | |
4257 | { | |
4258 | if (unmounting) | |
4259 | return; | |
94b18763 FG |
4260 | if (can_invalidate_dentries) { |
4261 | if (dentry_invalidate_cb && root->dir) { | |
4262 | for (ceph::unordered_map<string, Dentry*>::iterator p = root->dir->dentries.begin(); | |
4263 | p != root->dir->dentries.end(); | |
4264 | ++p) { | |
4265 | if (p->second->inode) | |
4266 | _schedule_invalidate_dentry_callback(p->second, false); | |
4267 | } | |
7c673cae FG |
4268 | } |
4269 | } else if (remount_cb) { | |
4270 | // Hacky: | |
4271 | // when remounting a file system, linux kernel trims all unused dentries in the fs | |
4272 | remount_finisher.queue(new C_Client_Remount(this)); | |
4273 | } | |
4274 | } | |
4275 | ||
91327a77 AA |
4276 | void Client::_trim_negative_child_dentries(InodeRef& in) |
4277 | { | |
4278 | if (!in->is_dir()) | |
4279 | return; | |
4280 | ||
4281 | Dir* dir = in->dir; | |
4282 | if (dir && dir->dentries.size() == dir->num_null_dentries) { | |
4283 | for (auto p = dir->dentries.begin(); p != dir->dentries.end(); ) { | |
4284 | Dentry *dn = p->second; | |
4285 | ++p; | |
11fdf7f2 | 4286 | ceph_assert(!dn->inode); |
91327a77 AA |
4287 | if (dn->lru_is_expireable()) |
4288 | unlink(dn, true, false); // keep dir, drop dentry | |
4289 | } | |
4290 | if (dir->dentries.empty()) { | |
4291 | close_dir(dir); | |
4292 | } | |
4293 | } | |
4294 | ||
4295 | if (in->flags & I_SNAPDIR_OPEN) { | |
4296 | InodeRef snapdir = open_snapdir(in.get()); | |
4297 | _trim_negative_child_dentries(snapdir); | |
4298 | } | |
4299 | } | |
4300 | ||
e306af50 TL |
4301 | class C_Client_CacheRelease : public Context { |
4302 | private: | |
4303 | Client *client; | |
4304 | vinodeno_t ino; | |
4305 | public: | |
4306 | C_Client_CacheRelease(Client *c, Inode *in) : | |
4307 | client(c) { | |
4308 | if (client->use_faked_inos()) | |
4309 | ino = vinodeno_t(in->faked_ino, CEPH_NOSNAP); | |
4310 | else | |
4311 | ino = in->vino(); | |
4312 | } | |
4313 | void finish(int r) override { | |
4314 | ceph_assert(ceph_mutex_is_not_locked_by_me(client->client_lock)); | |
4315 | client->_async_inode_release(ino); | |
4316 | } | |
4317 | }; | |
4318 | ||
4319 | void Client::_async_inode_release(vinodeno_t ino) | |
4320 | { | |
4321 | if (unmounting) | |
4322 | return; | |
4323 | ldout(cct, 10) << __func__ << " " << ino << dendl; | |
4324 | ino_release_cb(callback_handle, ino); | |
4325 | } | |
4326 | ||
4327 | void Client::_schedule_ino_release_callback(Inode *in) { | |
4328 | ||
4329 | if (ino_release_cb) | |
4330 | // we queue the invalidate, which calls the callback and decrements the ref | |
4331 | async_ino_releasor.queue(new C_Client_CacheRelease(this, in)); | |
4332 | } | |
4333 | ||
28e407b8 | 4334 | void Client::trim_caps(MetaSession *s, uint64_t max) |
7c673cae FG |
4335 | { |
4336 | mds_rank_t mds = s->mds_num; | |
28e407b8 | 4337 | size_t caps_size = s->caps.size(); |
11fdf7f2 | 4338 | ldout(cct, 10) << __func__ << " mds." << mds << " max " << max |
7c673cae FG |
4339 | << " caps " << caps_size << dendl; |
4340 | ||
28e407b8 AA |
4341 | uint64_t trimmed = 0; |
4342 | auto p = s->caps.begin(); | |
4343 | std::set<Dentry *> to_trim; /* this avoids caps other than the one we're | |
4344 | * looking at from getting deleted during traversal. */ | |
7c673cae FG |
4345 | while ((caps_size - trimmed) > max && !p.end()) { |
4346 | Cap *cap = *p; | |
11fdf7f2 | 4347 | InodeRef in(&cap->inode); |
7c673cae FG |
4348 | |
4349 | // Increment p early because it will be invalidated if cap | |
4350 | // is deleted inside remove_cap | |
4351 | ++p; | |
4352 | ||
4353 | if (in->caps.size() > 1 && cap != in->auth_cap) { | |
4354 | int mine = cap->issued | cap->implemented; | |
4355 | int oissued = in->auth_cap ? in->auth_cap->issued : 0; | |
4356 | // disposable non-auth cap | |
b32b8144 | 4357 | if (!(get_caps_used(in.get()) & ~oissued & mine)) { |
7c673cae | 4358 | ldout(cct, 20) << " removing unused, unneeded non-auth cap on " << *in << dendl; |
28e407b8 | 4359 | cap = (remove_cap(cap, true), nullptr); |
7c673cae FG |
4360 | trimmed++; |
4361 | } | |
4362 | } else { | |
4363 | ldout(cct, 20) << " trying to trim dentries for " << *in << dendl; | |
91327a77 | 4364 | _trim_negative_child_dentries(in); |
7c673cae | 4365 | bool all = true; |
11fdf7f2 TL |
4366 | auto q = in->dentries.begin(); |
4367 | while (q != in->dentries.end()) { | |
4368 | Dentry *dn = *q; | |
4369 | ++q; | |
7c673cae FG |
4370 | if (dn->lru_is_expireable()) { |
4371 | if (can_invalidate_dentries && | |
4372 | dn->dir->parent_inode->ino == MDS_INO_ROOT) { | |
4373 | // Only issue one of these per DN for inodes in root: handle | |
4374 | // others more efficiently by calling for root-child DNs at | |
4375 | // the end of this function. | |
4376 | _schedule_invalidate_dentry_callback(dn, true); | |
4377 | } | |
28e407b8 AA |
4378 | ldout(cct, 20) << " queueing dentry for trimming: " << dn->name << dendl; |
4379 | to_trim.insert(dn); | |
7c673cae FG |
4380 | } else { |
4381 | ldout(cct, 20) << " not expirable: " << dn->name << dendl; | |
4382 | all = false; | |
4383 | } | |
4384 | } | |
f91f0fd5 TL |
4385 | if (in->ll_ref == 1 && in->ino != MDS_INO_ROOT) { |
4386 | _schedule_ino_release_callback(in.get()); | |
4387 | } | |
7c673cae FG |
4388 | if (all && in->ino != MDS_INO_ROOT) { |
4389 | ldout(cct, 20) << __func__ << " counting as trimmed: " << *in << dendl; | |
4390 | trimmed++; | |
4391 | } | |
4392 | } | |
4393 | } | |
28e407b8 AA |
4394 | ldout(cct, 20) << " trimming queued dentries: " << dendl; |
4395 | for (const auto &dn : to_trim) { | |
4396 | trim_dentry(dn); | |
4397 | } | |
4398 | to_trim.clear(); | |
7c673cae | 4399 | |
b32b8144 | 4400 | caps_size = s->caps.size(); |
11fdf7f2 | 4401 | if (caps_size > (size_t)max) |
7c673cae FG |
4402 | _invalidate_kernel_dcache(); |
4403 | } | |
4404 | ||
4405 | void Client::force_session_readonly(MetaSession *s) | |
4406 | { | |
4407 | s->readonly = true; | |
4408 | for (xlist<Cap*>::iterator p = s->caps.begin(); !p.end(); ++p) { | |
11fdf7f2 TL |
4409 | auto &in = (*p)->inode; |
4410 | if (in.caps_wanted() & CEPH_CAP_FILE_WR) | |
4411 | signal_cond_list(in.waitfor_caps); | |
7c673cae FG |
4412 | } |
4413 | } | |
4414 | ||
7c673cae FG |
4415 | int Client::mark_caps_flushing(Inode *in, ceph_tid_t* ptid) |
4416 | { | |
4417 | MetaSession *session = in->auth_cap->session; | |
4418 | ||
4419 | int flushing = in->dirty_caps; | |
11fdf7f2 | 4420 | ceph_assert(flushing); |
7c673cae FG |
4421 | |
4422 | ceph_tid_t flush_tid = ++last_flush_tid; | |
4423 | in->flushing_cap_tids[flush_tid] = flushing; | |
4424 | ||
4425 | if (!in->flushing_caps) { | |
11fdf7f2 | 4426 | ldout(cct, 10) << __func__ << " " << ccap_string(flushing) << " " << *in << dendl; |
7c673cae FG |
4427 | num_flushing_caps++; |
4428 | } else { | |
11fdf7f2 | 4429 | ldout(cct, 10) << __func__ << " (more) " << ccap_string(flushing) << " " << *in << dendl; |
7c673cae FG |
4430 | } |
4431 | ||
4432 | in->flushing_caps |= flushing; | |
28e407b8 | 4433 | in->mark_caps_clean(); |
7c673cae FG |
4434 | |
4435 | if (!in->flushing_cap_item.is_on_list()) | |
4436 | session->flushing_caps.push_back(&in->flushing_cap_item); | |
4437 | session->flushing_caps_tids.insert(flush_tid); | |
4438 | ||
4439 | *ptid = flush_tid; | |
4440 | return flushing; | |
4441 | } | |
4442 | ||
4443 | void Client::adjust_session_flushing_caps(Inode *in, MetaSession *old_s, MetaSession *new_s) | |
4444 | { | |
4445 | for (auto &p : in->cap_snaps) { | |
4446 | CapSnap &capsnap = p.second; | |
4447 | if (capsnap.flush_tid > 0) { | |
4448 | old_s->flushing_caps_tids.erase(capsnap.flush_tid); | |
4449 | new_s->flushing_caps_tids.insert(capsnap.flush_tid); | |
4450 | } | |
4451 | } | |
4452 | for (map<ceph_tid_t, int>::iterator it = in->flushing_cap_tids.begin(); | |
4453 | it != in->flushing_cap_tids.end(); | |
4454 | ++it) { | |
4455 | old_s->flushing_caps_tids.erase(it->first); | |
4456 | new_s->flushing_caps_tids.insert(it->first); | |
4457 | } | |
4458 | new_s->flushing_caps.push_back(&in->flushing_cap_item); | |
4459 | } | |
4460 | ||
4461 | /* | |
4462 | * Flush all caps back to the MDS. Because the callers generally wait on the | |
4463 | * result of this function (syncfs and umount cases), we set | |
4464 | * CHECK_CAPS_SYNCHRONOUS on the last check_caps call. | |
4465 | */ | |
4466 | void Client::flush_caps_sync() | |
4467 | { | |
4468 | ldout(cct, 10) << __func__ << dendl; | |
28e407b8 | 4469 | xlist<Inode*>::iterator p = delayed_list.begin(); |
7c673cae FG |
4470 | while (!p.end()) { |
4471 | unsigned flags = CHECK_CAPS_NODELAY; | |
4472 | Inode *in = *p; | |
4473 | ||
4474 | ++p; | |
28e407b8 AA |
4475 | delayed_list.pop_front(); |
4476 | if (p.end() && dirty_list.empty()) | |
7c673cae FG |
4477 | flags |= CHECK_CAPS_SYNCHRONOUS; |
4478 | check_caps(in, flags); | |
4479 | } | |
4480 | ||
4481 | // other caps, too | |
28e407b8 | 4482 | p = dirty_list.begin(); |
7c673cae FG |
4483 | while (!p.end()) { |
4484 | unsigned flags = CHECK_CAPS_NODELAY; | |
4485 | Inode *in = *p; | |
4486 | ||
4487 | ++p; | |
4488 | if (p.end()) | |
4489 | flags |= CHECK_CAPS_SYNCHRONOUS; | |
4490 | check_caps(in, flags); | |
4491 | } | |
4492 | } | |
4493 | ||
7c673cae FG |
4494 | void Client::wait_sync_caps(Inode *in, ceph_tid_t want) |
4495 | { | |
4496 | while (in->flushing_caps) { | |
4497 | map<ceph_tid_t, int>::iterator it = in->flushing_cap_tids.begin(); | |
11fdf7f2 | 4498 | ceph_assert(it != in->flushing_cap_tids.end()); |
7c673cae FG |
4499 | if (it->first > want) |
4500 | break; | |
11fdf7f2 | 4501 | ldout(cct, 10) << __func__ << " on " << *in << " flushing " |
7c673cae FG |
4502 | << ccap_string(it->second) << " want " << want |
4503 | << " last " << it->first << dendl; | |
4504 | wait_on_list(in->waitfor_caps); | |
4505 | } | |
4506 | } | |
4507 | ||
4508 | void Client::wait_sync_caps(ceph_tid_t want) | |
4509 | { | |
4510 | retry: | |
11fdf7f2 | 4511 | ldout(cct, 10) << __func__ << " want " << want << " (last is " << last_flush_tid << ", " |
7c673cae | 4512 | << num_flushing_caps << " total flushing)" << dendl; |
11fdf7f2 TL |
4513 | for (auto &p : mds_sessions) { |
4514 | MetaSession *s = &p.second; | |
7c673cae FG |
4515 | if (s->flushing_caps_tids.empty()) |
4516 | continue; | |
4517 | ceph_tid_t oldest_tid = *s->flushing_caps_tids.begin(); | |
4518 | if (oldest_tid <= want) { | |
11fdf7f2 | 4519 | ldout(cct, 10) << " waiting on mds." << p.first << " tid " << oldest_tid |
7c673cae | 4520 | << " (want " << want << ")" << dendl; |
9f95a23c TL |
4521 | std::unique_lock l{client_lock, std::adopt_lock}; |
4522 | sync_cond.wait(l); | |
4523 | l.release(); | |
7c673cae FG |
4524 | goto retry; |
4525 | } | |
4526 | } | |
4527 | } | |
4528 | ||
eafe8130 TL |
4529 | void Client::kick_flushing_caps(Inode *in, MetaSession *session) |
4530 | { | |
4531 | in->flags &= ~I_KICK_FLUSH; | |
4532 | ||
4533 | Cap *cap = in->auth_cap; | |
4534 | ceph_assert(cap->session == session); | |
4535 | ||
4536 | ceph_tid_t last_snap_flush = 0; | |
4537 | for (auto p = in->flushing_cap_tids.rbegin(); | |
4538 | p != in->flushing_cap_tids.rend(); | |
4539 | ++p) { | |
4540 | if (!p->second) { | |
4541 | last_snap_flush = p->first; | |
4542 | break; | |
4543 | } | |
4544 | } | |
4545 | ||
4546 | int wanted = in->caps_wanted(); | |
4547 | int used = get_caps_used(in) | in->caps_dirty(); | |
4548 | auto it = in->cap_snaps.begin(); | |
4549 | for (auto& p : in->flushing_cap_tids) { | |
4550 | if (p.second) { | |
4551 | int msg_flags = p.first < last_snap_flush ? MClientCaps::FLAG_PENDING_CAPSNAP : 0; | |
4552 | send_cap(in, session, cap, msg_flags, used, wanted, (cap->issued | cap->implemented), | |
4553 | p.second, p.first); | |
4554 | } else { | |
4555 | ceph_assert(it != in->cap_snaps.end()); | |
4556 | ceph_assert(it->second.flush_tid == p.first); | |
4557 | send_flush_snap(in, session, it->first, it->second); | |
4558 | ++it; | |
4559 | } | |
4560 | } | |
4561 | } | |
4562 | ||
7c673cae FG |
4563 | void Client::kick_flushing_caps(MetaSession *session) |
4564 | { | |
4565 | mds_rank_t mds = session->mds_num; | |
11fdf7f2 | 4566 | ldout(cct, 10) << __func__ << " mds." << mds << dendl; |
7c673cae FG |
4567 | |
4568 | for (xlist<Inode*>::iterator p = session->flushing_caps.begin(); !p.end(); ++p) { | |
4569 | Inode *in = *p; | |
eafe8130 TL |
4570 | if (in->flags & I_KICK_FLUSH) { |
4571 | ldout(cct, 20) << " reflushing caps on " << *in << " to mds." << mds << dendl; | |
4572 | kick_flushing_caps(in, session); | |
4573 | } | |
7c673cae | 4574 | } |
7c673cae FG |
4575 | } |
4576 | ||
4577 | void Client::early_kick_flushing_caps(MetaSession *session) | |
4578 | { | |
7c673cae FG |
4579 | for (xlist<Inode*>::iterator p = session->flushing_caps.begin(); !p.end(); ++p) { |
4580 | Inode *in = *p; | |
11fdf7f2 TL |
4581 | Cap *cap = in->auth_cap; |
4582 | ceph_assert(cap); | |
7c673cae FG |
4583 | |
4584 | // if flushing caps were revoked, we re-send the cap flush in client reconnect | |
4585 | // stage. This guarantees that MDS processes the cap flush message before issuing | |
4586 | // the flushing caps to other client. | |
eafe8130 TL |
4587 | if ((in->flushing_caps & in->auth_cap->issued) == in->flushing_caps) { |
4588 | in->flags |= I_KICK_FLUSH; | |
7c673cae | 4589 | continue; |
eafe8130 | 4590 | } |
7c673cae FG |
4591 | |
4592 | ldout(cct, 20) << " reflushing caps (early_kick) on " << *in | |
4593 | << " to mds." << session->mds_num << dendl; | |
11fdf7f2 TL |
4594 | // send_reconnect() also will reset these sequence numbers. make sure |
4595 | // sequence numbers in cap flush message match later reconnect message. | |
4596 | cap->seq = 0; | |
4597 | cap->issue_seq = 0; | |
4598 | cap->mseq = 0; | |
4599 | cap->issued = cap->implemented; | |
4600 | ||
eafe8130 | 4601 | kick_flushing_caps(in, session); |
7c673cae FG |
4602 | } |
4603 | } | |
4604 | ||
7c673cae FG |
4605 | void SnapRealm::build_snap_context() |
4606 | { | |
4607 | set<snapid_t> snaps; | |
4608 | snapid_t max_seq = seq; | |
4609 | ||
4610 | // start with prior_parents? | |
4611 | for (unsigned i=0; i<prior_parent_snaps.size(); i++) | |
4612 | snaps.insert(prior_parent_snaps[i]); | |
4613 | ||
4614 | // current parent's snaps | |
4615 | if (pparent) { | |
4616 | const SnapContext& psnapc = pparent->get_snap_context(); | |
4617 | for (unsigned i=0; i<psnapc.snaps.size(); i++) | |
4618 | if (psnapc.snaps[i] >= parent_since) | |
4619 | snaps.insert(psnapc.snaps[i]); | |
4620 | if (psnapc.seq > max_seq) | |
4621 | max_seq = psnapc.seq; | |
4622 | } | |
4623 | ||
4624 | // my snaps | |
4625 | for (unsigned i=0; i<my_snaps.size(); i++) | |
4626 | snaps.insert(my_snaps[i]); | |
4627 | ||
4628 | // ok! | |
4629 | cached_snap_context.seq = max_seq; | |
4630 | cached_snap_context.snaps.resize(0); | |
4631 | cached_snap_context.snaps.reserve(snaps.size()); | |
4632 | for (set<snapid_t>::reverse_iterator p = snaps.rbegin(); p != snaps.rend(); ++p) | |
4633 | cached_snap_context.snaps.push_back(*p); | |
4634 | } | |
4635 | ||
4636 | void Client::invalidate_snaprealm_and_children(SnapRealm *realm) | |
4637 | { | |
4638 | list<SnapRealm*> q; | |
4639 | q.push_back(realm); | |
4640 | ||
4641 | while (!q.empty()) { | |
4642 | realm = q.front(); | |
4643 | q.pop_front(); | |
4644 | ||
11fdf7f2 | 4645 | ldout(cct, 10) << __func__ << " " << *realm << dendl; |
7c673cae FG |
4646 | realm->invalidate_cache(); |
4647 | ||
4648 | for (set<SnapRealm*>::iterator p = realm->pchildren.begin(); | |
4649 | p != realm->pchildren.end(); | |
4650 | ++p) | |
4651 | q.push_back(*p); | |
4652 | } | |
4653 | } | |
4654 | ||
4655 | SnapRealm *Client::get_snap_realm(inodeno_t r) | |
4656 | { | |
4657 | SnapRealm *realm = snap_realms[r]; | |
4658 | if (!realm) | |
4659 | snap_realms[r] = realm = new SnapRealm(r); | |
11fdf7f2 | 4660 | ldout(cct, 20) << __func__ << " " << r << " " << realm << " " << realm->nref << " -> " << (realm->nref + 1) << dendl; |
7c673cae FG |
4661 | realm->nref++; |
4662 | return realm; | |
4663 | } | |
4664 | ||
4665 | SnapRealm *Client::get_snap_realm_maybe(inodeno_t r) | |
4666 | { | |
4667 | if (snap_realms.count(r) == 0) { | |
11fdf7f2 | 4668 | ldout(cct, 20) << __func__ << " " << r << " fail" << dendl; |
7c673cae FG |
4669 | return NULL; |
4670 | } | |
4671 | SnapRealm *realm = snap_realms[r]; | |
11fdf7f2 | 4672 | ldout(cct, 20) << __func__ << " " << r << " " << realm << " " << realm->nref << " -> " << (realm->nref + 1) << dendl; |
7c673cae FG |
4673 | realm->nref++; |
4674 | return realm; | |
4675 | } | |
4676 | ||
4677 | void Client::put_snap_realm(SnapRealm *realm) | |
4678 | { | |
11fdf7f2 | 4679 | ldout(cct, 20) << __func__ << " " << realm->ino << " " << realm |
7c673cae FG |
4680 | << " " << realm->nref << " -> " << (realm->nref - 1) << dendl; |
4681 | if (--realm->nref == 0) { | |
4682 | snap_realms.erase(realm->ino); | |
4683 | if (realm->pparent) { | |
4684 | realm->pparent->pchildren.erase(realm); | |
4685 | put_snap_realm(realm->pparent); | |
4686 | } | |
4687 | delete realm; | |
4688 | } | |
4689 | } | |
4690 | ||
4691 | bool Client::adjust_realm_parent(SnapRealm *realm, inodeno_t parent) | |
4692 | { | |
4693 | if (realm->parent != parent) { | |
11fdf7f2 | 4694 | ldout(cct, 10) << __func__ << " " << *realm |
7c673cae FG |
4695 | << " " << realm->parent << " -> " << parent << dendl; |
4696 | realm->parent = parent; | |
4697 | if (realm->pparent) { | |
4698 | realm->pparent->pchildren.erase(realm); | |
4699 | put_snap_realm(realm->pparent); | |
4700 | } | |
4701 | realm->pparent = get_snap_realm(parent); | |
4702 | realm->pparent->pchildren.insert(realm); | |
4703 | return true; | |
4704 | } | |
4705 | return false; | |
4706 | } | |
4707 | ||
4708 | static bool has_new_snaps(const SnapContext& old_snapc, | |
4709 | const SnapContext& new_snapc) | |
4710 | { | |
4711 | return !new_snapc.snaps.empty() && new_snapc.snaps[0] > old_snapc.seq; | |
4712 | } | |
4713 | ||
4714 | ||
11fdf7f2 | 4715 | void Client::update_snap_trace(const bufferlist& bl, SnapRealm **realm_ret, bool flush) |
7c673cae FG |
4716 | { |
4717 | SnapRealm *first_realm = NULL; | |
11fdf7f2 | 4718 | ldout(cct, 10) << __func__ << " len " << bl.length() << dendl; |
7c673cae FG |
4719 | |
4720 | map<SnapRealm*, SnapContext> dirty_realms; | |
4721 | ||
11fdf7f2 | 4722 | auto p = bl.cbegin(); |
7c673cae FG |
4723 | while (!p.end()) { |
4724 | SnapRealmInfo info; | |
11fdf7f2 | 4725 | decode(info, p); |
7c673cae FG |
4726 | SnapRealm *realm = get_snap_realm(info.ino()); |
4727 | ||
4728 | bool invalidate = false; | |
4729 | ||
4730 | if (info.seq() > realm->seq) { | |
11fdf7f2 | 4731 | ldout(cct, 10) << __func__ << " " << *realm << " seq " << info.seq() << " > " << realm->seq |
7c673cae FG |
4732 | << dendl; |
4733 | ||
4734 | if (flush) { | |
4735 | // writeback any dirty caps _before_ updating snap list (i.e. with old snap info) | |
4736 | // flush me + children | |
4737 | list<SnapRealm*> q; | |
4738 | q.push_back(realm); | |
4739 | while (!q.empty()) { | |
4740 | SnapRealm *realm = q.front(); | |
4741 | q.pop_front(); | |
4742 | ||
4743 | for (set<SnapRealm*>::iterator p = realm->pchildren.begin(); | |
4744 | p != realm->pchildren.end(); | |
4745 | ++p) | |
4746 | q.push_back(*p); | |
4747 | ||
4748 | if (dirty_realms.count(realm) == 0) { | |
4749 | realm->nref++; | |
4750 | dirty_realms[realm] = realm->get_snap_context(); | |
4751 | } | |
4752 | } | |
4753 | } | |
4754 | ||
4755 | // update | |
4756 | realm->seq = info.seq(); | |
4757 | realm->created = info.created(); | |
4758 | realm->parent_since = info.parent_since(); | |
4759 | realm->prior_parent_snaps = info.prior_parent_snaps; | |
4760 | realm->my_snaps = info.my_snaps; | |
4761 | invalidate = true; | |
4762 | } | |
4763 | ||
4764 | // _always_ verify parent | |
4765 | if (adjust_realm_parent(realm, info.parent())) | |
4766 | invalidate = true; | |
4767 | ||
4768 | if (invalidate) { | |
4769 | invalidate_snaprealm_and_children(realm); | |
11fdf7f2 | 4770 | ldout(cct, 15) << __func__ << " " << *realm << " self|parent updated" << dendl; |
7c673cae FG |
4771 | ldout(cct, 15) << " snapc " << realm->get_snap_context() << dendl; |
4772 | } else { | |
11fdf7f2 | 4773 | ldout(cct, 10) << __func__ << " " << *realm << " seq " << info.seq() |
7c673cae FG |
4774 | << " <= " << realm->seq << " and same parent, SKIPPING" << dendl; |
4775 | } | |
7f7e6c64 | 4776 | |
7c673cae FG |
4777 | if (!first_realm) |
4778 | first_realm = realm; | |
4779 | else | |
4780 | put_snap_realm(realm); | |
4781 | } | |
4782 | ||
7f7e6c64 | 4783 | for (auto &[realm, snapc] : dirty_realms) { |
7c673cae | 4784 | // if there are new snaps ? |
7f7e6c64 | 4785 | if (has_new_snaps(snapc, realm->get_snap_context())) { |
7c673cae | 4786 | ldout(cct, 10) << " flushing caps on " << *realm << dendl; |
7f7e6c64 TL |
4787 | for (auto&& in : realm->inodes_with_caps) { |
4788 | queue_cap_snap(in, snapc); | |
7c673cae FG |
4789 | } |
4790 | } else { | |
4791 | ldout(cct, 10) << " no new snap on " << *realm << dendl; | |
4792 | } | |
4793 | put_snap_realm(realm); | |
4794 | } | |
4795 | ||
4796 | if (realm_ret) | |
4797 | *realm_ret = first_realm; | |
4798 | else | |
4799 | put_snap_realm(first_realm); | |
4800 | } | |
4801 | ||
11fdf7f2 | 4802 | void Client::handle_snap(const MConstRef<MClientSnap>& m) |
7c673cae | 4803 | { |
11fdf7f2 | 4804 | ldout(cct, 10) << __func__ << " " << *m << dendl; |
7c673cae FG |
4805 | mds_rank_t mds = mds_rank_t(m->get_source().num()); |
4806 | MetaSession *session = _get_mds_session(mds, m->get_connection().get()); | |
4807 | if (!session) { | |
7c673cae FG |
4808 | return; |
4809 | } | |
4810 | ||
4811 | got_mds_push(session); | |
4812 | ||
4813 | map<Inode*, SnapContext> to_move; | |
4814 | SnapRealm *realm = 0; | |
4815 | ||
4816 | if (m->head.op == CEPH_SNAP_OP_SPLIT) { | |
11fdf7f2 | 4817 | ceph_assert(m->head.split); |
7c673cae | 4818 | SnapRealmInfo info; |
11fdf7f2 TL |
4819 | auto p = m->bl.cbegin(); |
4820 | decode(info, p); | |
4821 | ceph_assert(info.ino() == m->head.split); | |
7c673cae FG |
4822 | |
4823 | // flush, then move, ino's. | |
4824 | realm = get_snap_realm(info.ino()); | |
4825 | ldout(cct, 10) << " splitting off " << *realm << dendl; | |
11fdf7f2 TL |
4826 | for (auto& ino : m->split_inos) { |
4827 | vinodeno_t vino(ino, CEPH_NOSNAP); | |
7c673cae FG |
4828 | if (inode_map.count(vino)) { |
4829 | Inode *in = inode_map[vino]; | |
4830 | if (!in->snaprealm || in->snaprealm == realm) | |
4831 | continue; | |
4832 | if (in->snaprealm->created > info.created()) { | |
4833 | ldout(cct, 10) << " NOT moving " << *in << " from _newer_ realm " | |
4834 | << *in->snaprealm << dendl; | |
4835 | continue; | |
4836 | } | |
4837 | ldout(cct, 10) << " moving " << *in << " from " << *in->snaprealm << dendl; | |
4838 | ||
4839 | ||
4840 | in->snaprealm_item.remove_myself(); | |
4841 | to_move[in] = in->snaprealm->get_snap_context(); | |
4842 | put_snap_realm(in->snaprealm); | |
4843 | } | |
4844 | } | |
4845 | ||
4846 | // move child snaprealms, too | |
11fdf7f2 TL |
4847 | for (auto& child_realm : m->split_realms) { |
4848 | ldout(cct, 10) << "adjusting snaprealm " << child_realm << " parent" << dendl; | |
4849 | SnapRealm *child = get_snap_realm_maybe(child_realm); | |
7c673cae FG |
4850 | if (!child) |
4851 | continue; | |
4852 | adjust_realm_parent(child, realm->ino); | |
4853 | put_snap_realm(child); | |
4854 | } | |
4855 | } | |
4856 | ||
4857 | update_snap_trace(m->bl, NULL, m->head.op != CEPH_SNAP_OP_DESTROY); | |
4858 | ||
4859 | if (realm) { | |
4860 | for (auto p = to_move.begin(); p != to_move.end(); ++p) { | |
4861 | Inode *in = p->first; | |
4862 | in->snaprealm = realm; | |
4863 | realm->inodes_with_caps.push_back(&in->snaprealm_item); | |
4864 | realm->nref++; | |
4865 | // queue for snap writeback | |
4866 | if (has_new_snaps(p->second, realm->get_snap_context())) | |
4867 | queue_cap_snap(in, p->second); | |
4868 | } | |
4869 | put_snap_realm(realm); | |
4870 | } | |
7c673cae FG |
4871 | } |
4872 | ||
11fdf7f2 | 4873 | void Client::handle_quota(const MConstRef<MClientQuota>& m) |
7c673cae FG |
4874 | { |
4875 | mds_rank_t mds = mds_rank_t(m->get_source().num()); | |
4876 | MetaSession *session = _get_mds_session(mds, m->get_connection().get()); | |
4877 | if (!session) { | |
7c673cae FG |
4878 | return; |
4879 | } | |
4880 | ||
4881 | got_mds_push(session); | |
4882 | ||
11fdf7f2 | 4883 | ldout(cct, 10) << __func__ << " " << *m << " from mds." << mds << dendl; |
7c673cae FG |
4884 | |
4885 | vinodeno_t vino(m->ino, CEPH_NOSNAP); | |
4886 | if (inode_map.count(vino)) { | |
4887 | Inode *in = NULL; | |
4888 | in = inode_map[vino]; | |
4889 | ||
4890 | if (in) { | |
4891 | in->quota = m->quota; | |
4892 | in->rstat = m->rstat; | |
4893 | } | |
4894 | } | |
7c673cae FG |
4895 | } |
4896 | ||
11fdf7f2 | 4897 | void Client::handle_caps(const MConstRef<MClientCaps>& m) |
7c673cae FG |
4898 | { |
4899 | mds_rank_t mds = mds_rank_t(m->get_source().num()); | |
4900 | MetaSession *session = _get_mds_session(mds, m->get_connection().get()); | |
4901 | if (!session) { | |
7c673cae FG |
4902 | return; |
4903 | } | |
4904 | ||
4905 | if (m->osd_epoch_barrier && !objecter->have_map(m->osd_epoch_barrier)) { | |
4906 | // Pause RADOS operations until we see the required epoch | |
4907 | objecter->set_epoch_barrier(m->osd_epoch_barrier); | |
4908 | } | |
4909 | ||
4910 | if (m->osd_epoch_barrier > cap_epoch_barrier) { | |
4911 | // Record the barrier so that we will transmit it to MDS when releasing | |
4912 | set_cap_epoch_barrier(m->osd_epoch_barrier); | |
4913 | } | |
4914 | ||
4915 | got_mds_push(session); | |
4916 | ||
11fdf7f2 | 4917 | Inode *in; |
7c673cae | 4918 | vinodeno_t vino(m->get_ino(), CEPH_NOSNAP); |
11fdf7f2 TL |
4919 | if (auto it = inode_map.find(vino); it != inode_map.end()) { |
4920 | in = it->second; | |
4921 | } else { | |
7c673cae | 4922 | if (m->get_op() == CEPH_CAP_OP_IMPORT) { |
11fdf7f2 | 4923 | ldout(cct, 5) << __func__ << " don't have vino " << vino << " on IMPORT, immediately releasing" << dendl; |
7c673cae FG |
4924 | session->enqueue_cap_release( |
4925 | m->get_ino(), | |
4926 | m->get_cap_id(), | |
4927 | m->get_seq(), | |
4928 | m->get_mseq(), | |
4929 | cap_epoch_barrier); | |
4930 | } else { | |
11fdf7f2 | 4931 | ldout(cct, 5) << __func__ << " don't have vino " << vino << ", dropping" << dendl; |
7c673cae | 4932 | } |
7c673cae FG |
4933 | |
4934 | // in case the mds is waiting on e.g. a revocation | |
4935 | flush_cap_releases(); | |
4936 | return; | |
4937 | } | |
4938 | ||
4939 | switch (m->get_op()) { | |
11fdf7f2 TL |
4940 | case CEPH_CAP_OP_EXPORT: return handle_cap_export(session, in, m); |
4941 | case CEPH_CAP_OP_FLUSHSNAP_ACK: return handle_cap_flushsnap_ack(session, in, m); | |
4942 | case CEPH_CAP_OP_IMPORT: /* no return */ handle_cap_import(session, in, m); | |
7c673cae FG |
4943 | } |
4944 | ||
11fdf7f2 TL |
4945 | if (auto it = in->caps.find(mds); it != in->caps.end()) { |
4946 | Cap &cap = in->caps.at(mds); | |
7c673cae | 4947 | |
11fdf7f2 TL |
4948 | switch (m->get_op()) { |
4949 | case CEPH_CAP_OP_TRUNC: return handle_cap_trunc(session, in, m); | |
4950 | case CEPH_CAP_OP_IMPORT: | |
4951 | case CEPH_CAP_OP_REVOKE: | |
4952 | case CEPH_CAP_OP_GRANT: return handle_cap_grant(session, in, &cap, m); | |
4953 | case CEPH_CAP_OP_FLUSH_ACK: return handle_cap_flush_ack(session, in, &cap, m); | |
4954 | } | |
4955 | } else { | |
4956 | ldout(cct, 5) << __func__ << " don't have " << *in << " cap on mds." << mds << dendl; | |
4957 | return; | |
7c673cae FG |
4958 | } |
4959 | } | |
4960 | ||
11fdf7f2 | 4961 | void Client::handle_cap_import(MetaSession *session, Inode *in, const MConstRef<MClientCaps>& m) |
7c673cae FG |
4962 | { |
4963 | mds_rank_t mds = session->mds_num; | |
4964 | ||
11fdf7f2 | 4965 | ldout(cct, 5) << __func__ << " ino " << m->get_ino() << " mseq " << m->get_mseq() |
7c673cae FG |
4966 | << " IMPORT from mds." << mds << dendl; |
4967 | ||
4968 | const mds_rank_t peer_mds = mds_rank_t(m->peer.mds); | |
4969 | Cap *cap = NULL; | |
4970 | UserPerm cap_perms; | |
11fdf7f2 TL |
4971 | if (auto it = in->caps.find(peer_mds); m->peer.cap_id && it != in->caps.end()) { |
4972 | cap = &it->second; | |
4973 | cap_perms = cap->latest_perms; | |
7c673cae FG |
4974 | } |
4975 | ||
4976 | // add/update it | |
4977 | SnapRealm *realm = NULL; | |
4978 | update_snap_trace(m->snapbl, &realm); | |
4979 | ||
1911f103 TL |
4980 | int issued = m->get_caps(); |
4981 | int wanted = m->get_wanted(); | |
7c673cae | 4982 | add_update_cap(in, session, m->get_cap_id(), |
1911f103 | 4983 | issued, wanted, m->get_seq(), m->get_mseq(), |
a8e16298 | 4984 | m->get_realm(), CEPH_CAP_FLAG_AUTH, cap_perms); |
7c673cae FG |
4985 | |
4986 | if (cap && cap->cap_id == m->peer.cap_id) { | |
4987 | remove_cap(cap, (m->peer.flags & CEPH_CAP_FLAG_RELEASE)); | |
4988 | } | |
4989 | ||
4990 | if (realm) | |
4991 | put_snap_realm(realm); | |
4992 | ||
eafe8130 | 4993 | if (in->auth_cap && in->auth_cap->session == session) { |
1911f103 TL |
4994 | if (!(wanted & CEPH_CAP_ANY_FILE_WR) || |
4995 | in->requested_max_size > m->get_max_size()) { | |
4996 | in->requested_max_size = 0; | |
4997 | ldout(cct, 15) << "reset requested_max_size after cap import" << dendl; | |
4998 | } | |
7c673cae | 4999 | // reflush any/all caps (if we are now the auth_cap) |
eafe8130 | 5000 | kick_flushing_caps(in, session); |
7c673cae FG |
5001 | } |
5002 | } | |
5003 | ||
11fdf7f2 | 5004 | void Client::handle_cap_export(MetaSession *session, Inode *in, const MConstRef<MClientCaps>& m) |
7c673cae FG |
5005 | { |
5006 | mds_rank_t mds = session->mds_num; | |
5007 | ||
11fdf7f2 | 5008 | ldout(cct, 5) << __func__ << " ino " << m->get_ino() << " mseq " << m->get_mseq() |
7c673cae FG |
5009 | << " EXPORT from mds." << mds << dendl; |
5010 | ||
11fdf7f2 TL |
5011 | auto it = in->caps.find(mds); |
5012 | if (it != in->caps.end()) { | |
5013 | Cap &cap = it->second; | |
5014 | if (cap.cap_id == m->get_cap_id()) { | |
5015 | if (m->peer.cap_id) { | |
5016 | const auto peer_mds = mds_rank_t(m->peer.mds); | |
5017 | MetaSession *tsession = _get_or_open_mds_session(peer_mds); | |
5018 | auto it = in->caps.find(peer_mds); | |
5019 | if (it != in->caps.end()) { | |
5020 | Cap &tcap = it->second; | |
5021 | if (tcap.cap_id == m->peer.cap_id && | |
5022 | ceph_seq_cmp(tcap.seq, m->peer.seq) < 0) { | |
5023 | tcap.cap_id = m->peer.cap_id; | |
5024 | tcap.seq = m->peer.seq - 1; | |
5025 | tcap.issue_seq = tcap.seq; | |
5026 | tcap.issued |= cap.issued; | |
5027 | tcap.implemented |= cap.issued; | |
5028 | if (&cap == in->auth_cap) | |
5029 | in->auth_cap = &tcap; | |
5030 | if (in->auth_cap == &tcap && in->flushing_cap_item.is_on_list()) | |
5031 | adjust_session_flushing_caps(in, session, tsession); | |
5032 | } | |
5033 | } else { | |
5034 | add_update_cap(in, tsession, m->peer.cap_id, cap.issued, 0, | |
5035 | m->peer.seq - 1, m->peer.mseq, (uint64_t)-1, | |
5036 | &cap == in->auth_cap ? CEPH_CAP_FLAG_AUTH : 0, | |
5037 | cap.latest_perms); | |
5038 | } | |
7c673cae | 5039 | } else { |
11fdf7f2 TL |
5040 | if (cap.wanted | cap.issued) |
5041 | in->flags |= I_CAP_DROPPED; | |
7c673cae | 5042 | } |
7c673cae | 5043 | |
11fdf7f2 TL |
5044 | remove_cap(&cap, false); |
5045 | } | |
7c673cae | 5046 | } |
7c673cae FG |
5047 | } |
5048 | ||
11fdf7f2 | 5049 | void Client::handle_cap_trunc(MetaSession *session, Inode *in, const MConstRef<MClientCaps>& m) |
7c673cae FG |
5050 | { |
5051 | mds_rank_t mds = session->mds_num; | |
11fdf7f2 | 5052 | ceph_assert(in->caps.count(mds)); |
7c673cae | 5053 | |
11fdf7f2 | 5054 | ldout(cct, 10) << __func__ << " on ino " << *in |
7c673cae FG |
5055 | << " size " << in->size << " -> " << m->get_size() |
5056 | << dendl; | |
5057 | ||
1adf2230 AA |
5058 | int issued; |
5059 | in->caps_issued(&issued); | |
5060 | issued |= in->caps_dirty(); | |
5061 | update_inode_file_size(in, issued, m->get_size(), | |
5062 | m->get_truncate_seq(), m->get_truncate_size()); | |
7c673cae FG |
5063 | } |
5064 | ||
11fdf7f2 | 5065 | void Client::handle_cap_flush_ack(MetaSession *session, Inode *in, Cap *cap, const MConstRef<MClientCaps>& m) |
7c673cae FG |
5066 | { |
5067 | ceph_tid_t flush_ack_tid = m->get_client_tid(); | |
5068 | int dirty = m->get_dirty(); | |
5069 | int cleaned = 0; | |
5070 | int flushed = 0; | |
5071 | ||
11fdf7f2 TL |
5072 | auto it = in->flushing_cap_tids.begin(); |
5073 | if (it->first < flush_ack_tid) { | |
5074 | ldout(cct, 0) << __func__ << " mds." << session->mds_num | |
5075 | << " got unexpected flush ack tid " << flush_ack_tid | |
5076 | << " expected is " << it->first << dendl; | |
5077 | } | |
5078 | for (; it != in->flushing_cap_tids.end(); ) { | |
eafe8130 TL |
5079 | if (!it->second) { |
5080 | // cap snap | |
5081 | ++it; | |
5082 | continue; | |
5083 | } | |
7c673cae FG |
5084 | if (it->first == flush_ack_tid) |
5085 | cleaned = it->second; | |
5086 | if (it->first <= flush_ack_tid) { | |
5087 | session->flushing_caps_tids.erase(it->first); | |
5088 | in->flushing_cap_tids.erase(it++); | |
5089 | ++flushed; | |
5090 | continue; | |
5091 | } | |
5092 | cleaned &= ~it->second; | |
5093 | if (!cleaned) | |
5094 | break; | |
5095 | ++it; | |
5096 | } | |
5097 | ||
11fdf7f2 | 5098 | ldout(cct, 5) << __func__ << " mds." << session->mds_num |
7c673cae FG |
5099 | << " cleaned " << ccap_string(cleaned) << " on " << *in |
5100 | << " with " << ccap_string(dirty) << dendl; | |
5101 | ||
5102 | if (flushed) { | |
5103 | signal_cond_list(in->waitfor_caps); | |
5104 | if (session->flushing_caps_tids.empty() || | |
5105 | *session->flushing_caps_tids.begin() > flush_ack_tid) | |
9f95a23c | 5106 | sync_cond.notify_all(); |
7c673cae FG |
5107 | } |
5108 | ||
5109 | if (!dirty) { | |
5110 | in->cap_dirtier_uid = -1; | |
5111 | in->cap_dirtier_gid = -1; | |
5112 | } | |
5113 | ||
5114 | if (!cleaned) { | |
5115 | ldout(cct, 10) << " tid " << m->get_client_tid() << " != any cap bit tids" << dendl; | |
5116 | } else { | |
5117 | if (in->flushing_caps) { | |
5118 | ldout(cct, 5) << " flushing_caps " << ccap_string(in->flushing_caps) | |
5119 | << " -> " << ccap_string(in->flushing_caps & ~cleaned) << dendl; | |
5120 | in->flushing_caps &= ~cleaned; | |
5121 | if (in->flushing_caps == 0) { | |
5122 | ldout(cct, 10) << " " << *in << " !flushing" << dendl; | |
5123 | num_flushing_caps--; | |
eafe8130 | 5124 | if (in->flushing_cap_tids.empty()) |
7c673cae FG |
5125 | in->flushing_cap_item.remove_myself(); |
5126 | } | |
5127 | if (!in->caps_dirty()) | |
5128 | put_inode(in); | |
5129 | } | |
5130 | } | |
7c673cae FG |
5131 | } |
5132 | ||
5133 | ||
11fdf7f2 | 5134 | void Client::handle_cap_flushsnap_ack(MetaSession *session, Inode *in, const MConstRef<MClientCaps>& m) |
7c673cae | 5135 | { |
eafe8130 | 5136 | ceph_tid_t flush_ack_tid = m->get_client_tid(); |
7c673cae | 5137 | mds_rank_t mds = session->mds_num; |
11fdf7f2 | 5138 | ceph_assert(in->caps.count(mds)); |
7c673cae FG |
5139 | snapid_t follows = m->get_snap_follows(); |
5140 | ||
11fdf7f2 TL |
5141 | if (auto it = in->cap_snaps.find(follows); it != in->cap_snaps.end()) { |
5142 | auto& capsnap = it->second; | |
eafe8130 TL |
5143 | if (flush_ack_tid != capsnap.flush_tid) { |
5144 | ldout(cct, 10) << " tid " << flush_ack_tid << " != " << capsnap.flush_tid << dendl; | |
7c673cae | 5145 | } else { |
eafe8130 | 5146 | InodeRef tmp_ref(in); |
11fdf7f2 | 5147 | ldout(cct, 5) << __func__ << " mds." << mds << " flushed snap follows " << follows |
7c673cae | 5148 | << " on " << *in << dendl; |
7c673cae | 5149 | session->flushing_caps_tids.erase(capsnap.flush_tid); |
eafe8130 TL |
5150 | in->flushing_cap_tids.erase(capsnap.flush_tid); |
5151 | if (in->flushing_caps == 0 && in->flushing_cap_tids.empty()) | |
5152 | in->flushing_cap_item.remove_myself(); | |
11fdf7f2 | 5153 | in->cap_snaps.erase(it); |
eafe8130 TL |
5154 | |
5155 | signal_cond_list(in->waitfor_caps); | |
5156 | if (session->flushing_caps_tids.empty() || | |
5157 | *session->flushing_caps_tids.begin() > flush_ack_tid) | |
9f95a23c | 5158 | sync_cond.notify_all(); |
7c673cae FG |
5159 | } |
5160 | } else { | |
11fdf7f2 | 5161 | ldout(cct, 5) << __func__ << " DUP(?) mds." << mds << " flushed snap follows " << follows |
7c673cae FG |
5162 | << " on " << *in << dendl; |
5163 | // we may not have it if we send multiple FLUSHSNAP requests and (got multiple FLUSHEDSNAPs back) | |
5164 | } | |
7c673cae FG |
5165 | } |
5166 | ||
5167 | class C_Client_DentryInvalidate : public Context { | |
5168 | private: | |
5169 | Client *client; | |
5170 | vinodeno_t dirino; | |
5171 | vinodeno_t ino; | |
5172 | string name; | |
5173 | public: | |
5174 | C_Client_DentryInvalidate(Client *c, Dentry *dn, bool del) : | |
5175 | client(c), name(dn->name) { | |
5176 | if (client->use_faked_inos()) { | |
5177 | dirino.ino = dn->dir->parent_inode->faked_ino; | |
5178 | if (del) | |
5179 | ino.ino = dn->inode->faked_ino; | |
5180 | } else { | |
5181 | dirino = dn->dir->parent_inode->vino(); | |
5182 | if (del) | |
5183 | ino = dn->inode->vino(); | |
5184 | } | |
5185 | if (!del) | |
5186 | ino.ino = inodeno_t(); | |
5187 | } | |
5188 | void finish(int r) override { | |
5189 | // _async_dentry_invalidate is responsible for its own locking | |
9f95a23c | 5190 | ceph_assert(ceph_mutex_is_not_locked_by_me(client->client_lock)); |
7c673cae FG |
5191 | client->_async_dentry_invalidate(dirino, ino, name); |
5192 | } | |
5193 | }; | |
5194 | ||
5195 | void Client::_async_dentry_invalidate(vinodeno_t dirino, vinodeno_t ino, string& name) | |
5196 | { | |
5197 | if (unmounting) | |
5198 | return; | |
11fdf7f2 | 5199 | ldout(cct, 10) << __func__ << " '" << name << "' ino " << ino |
7c673cae | 5200 | << " in dir " << dirino << dendl; |
e306af50 | 5201 | dentry_invalidate_cb(callback_handle, dirino, ino, name.c_str(), name.length()); |
7c673cae FG |
5202 | } |
5203 | ||
5204 | void Client::_schedule_invalidate_dentry_callback(Dentry *dn, bool del) | |
5205 | { | |
5206 | if (dentry_invalidate_cb && dn->inode->ll_ref > 0) | |
5207 | async_dentry_invalidator.queue(new C_Client_DentryInvalidate(this, dn, del)); | |
5208 | } | |
5209 | ||
5210 | void Client::_try_to_trim_inode(Inode *in, bool sched_inval) | |
5211 | { | |
5212 | int ref = in->get_num_ref(); | |
494da23a | 5213 | ldout(cct, 5) << __func__ << " in " << *in <<dendl; |
7c673cae FG |
5214 | |
5215 | if (in->dir && !in->dir->dentries.empty()) { | |
5216 | for (auto p = in->dir->dentries.begin(); | |
5217 | p != in->dir->dentries.end(); ) { | |
5218 | Dentry *dn = p->second; | |
5219 | ++p; | |
5220 | /* rmsnap removes whole subtree, need trim inodes recursively. | |
5221 | * we don't need to invalidate dentries recursively. because | |
5222 | * invalidating a directory dentry effectively invalidate | |
5223 | * whole subtree */ | |
5224 | if (in->snapid != CEPH_NOSNAP && dn->inode && dn->inode->is_dir()) | |
5225 | _try_to_trim_inode(dn->inode.get(), false); | |
5226 | ||
5227 | if (dn->lru_is_expireable()) | |
5228 | unlink(dn, true, false); // keep dir, drop dentry | |
5229 | } | |
5230 | if (in->dir->dentries.empty()) { | |
5231 | close_dir(in->dir); | |
5232 | --ref; | |
5233 | } | |
5234 | } | |
5235 | ||
5236 | if (ref > 0 && (in->flags & I_SNAPDIR_OPEN)) { | |
5237 | InodeRef snapdir = open_snapdir(in); | |
5238 | _try_to_trim_inode(snapdir.get(), false); | |
5239 | --ref; | |
5240 | } | |
5241 | ||
494da23a | 5242 | if (ref > 0) { |
11fdf7f2 TL |
5243 | auto q = in->dentries.begin(); |
5244 | while (q != in->dentries.end()) { | |
5245 | Dentry *dn = *q; | |
5246 | ++q; | |
494da23a TL |
5247 | if( in->ll_ref > 0 && sched_inval) { |
5248 | // FIXME: we play lots of unlink/link tricks when handling MDS replies, | |
5249 | // so in->dentries doesn't always reflect the state of kernel's dcache. | |
5250 | _schedule_invalidate_dentry_callback(dn, true); | |
5251 | } | |
7c673cae FG |
5252 | unlink(dn, true, true); |
5253 | } | |
5254 | } | |
5255 | } | |
5256 | ||
11fdf7f2 | 5257 | void Client::handle_cap_grant(MetaSession *session, Inode *in, Cap *cap, const MConstRef<MClientCaps>& m) |
7c673cae FG |
5258 | { |
5259 | mds_rank_t mds = session->mds_num; | |
5260 | int used = get_caps_used(in); | |
5261 | int wanted = in->caps_wanted(); | |
5262 | ||
a8e16298 TL |
5263 | const unsigned new_caps = m->get_caps(); |
5264 | const bool was_stale = session->cap_gen > cap->gen; | |
11fdf7f2 | 5265 | ldout(cct, 5) << __func__ << " on in " << m->get_ino() |
7c673cae FG |
5266 | << " mds." << mds << " seq " << m->get_seq() |
5267 | << " caps now " << ccap_string(new_caps) | |
a8e16298 | 5268 | << " was " << ccap_string(cap->issued) |
92f5a8d4 | 5269 | << (was_stale ? " (stale)" : "") << dendl; |
a8e16298 TL |
5270 | |
5271 | if (was_stale) | |
5272 | cap->issued = cap->implemented = CEPH_CAP_PIN; | |
7c673cae | 5273 | cap->seq = m->get_seq(); |
28e407b8 | 5274 | cap->gen = session->cap_gen; |
7c673cae | 5275 | |
11fdf7f2 | 5276 | check_cap_issue(in, new_caps); |
a8e16298 | 5277 | |
7c673cae | 5278 | // update inode |
1adf2230 AA |
5279 | int issued; |
5280 | in->caps_issued(&issued); | |
5281 | issued |= in->caps_dirty(); | |
7c673cae | 5282 | |
1adf2230 AA |
5283 | if ((new_caps & CEPH_CAP_AUTH_SHARED) && |
5284 | !(issued & CEPH_CAP_AUTH_EXCL)) { | |
7c673cae FG |
5285 | in->mode = m->head.mode; |
5286 | in->uid = m->head.uid; | |
5287 | in->gid = m->head.gid; | |
5288 | in->btime = m->btime; | |
5289 | } | |
5290 | bool deleted_inode = false; | |
1adf2230 AA |
5291 | if ((new_caps & CEPH_CAP_LINK_SHARED) && |
5292 | !(issued & CEPH_CAP_LINK_EXCL)) { | |
7c673cae FG |
5293 | in->nlink = m->head.nlink; |
5294 | if (in->nlink == 0 && | |
5295 | (new_caps & (CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL))) | |
5296 | deleted_inode = true; | |
5297 | } | |
1adf2230 | 5298 | if (!(issued & CEPH_CAP_XATTR_EXCL) && |
7c673cae FG |
5299 | m->xattrbl.length() && |
5300 | m->head.xattr_version > in->xattr_version) { | |
11fdf7f2 TL |
5301 | auto p = m->xattrbl.cbegin(); |
5302 | decode(in->xattrs, p); | |
7c673cae FG |
5303 | in->xattr_version = m->head.xattr_version; |
5304 | } | |
28e407b8 AA |
5305 | |
5306 | if ((new_caps & CEPH_CAP_FILE_SHARED) && m->dirstat_is_valid()) { | |
5307 | in->dirstat.nfiles = m->get_nfiles(); | |
5308 | in->dirstat.nsubdirs = m->get_nsubdirs(); | |
5309 | } | |
5310 | ||
1adf2230 AA |
5311 | if (new_caps & CEPH_CAP_ANY_RD) { |
5312 | update_inode_file_time(in, issued, m->get_time_warp_seq(), | |
5313 | m->get_ctime(), m->get_mtime(), m->get_atime()); | |
5314 | } | |
5315 | ||
5316 | if (new_caps & (CEPH_CAP_ANY_FILE_RD | CEPH_CAP_ANY_FILE_WR)) { | |
5317 | in->layout = m->get_layout(); | |
5318 | update_inode_file_size(in, issued, m->get_size(), | |
5319 | m->get_truncate_seq(), m->get_truncate_size()); | |
5320 | } | |
5321 | ||
5322 | if (m->inline_version > in->inline_version) { | |
5323 | in->inline_data = m->inline_data; | |
5324 | in->inline_version = m->inline_version; | |
5325 | } | |
5326 | ||
5327 | /* always take a newer change attr */ | |
5328 | if (m->get_change_attr() > in->change_attr) | |
5329 | in->change_attr = m->get_change_attr(); | |
7c673cae FG |
5330 | |
5331 | // max_size | |
5332 | if (cap == in->auth_cap && | |
1adf2230 AA |
5333 | (new_caps & CEPH_CAP_ANY_FILE_WR) && |
5334 | (m->get_max_size() != in->max_size)) { | |
7c673cae FG |
5335 | ldout(cct, 10) << "max_size " << in->max_size << " -> " << m->get_max_size() << dendl; |
5336 | in->max_size = m->get_max_size(); | |
5337 | if (in->max_size > in->wanted_max_size) { | |
5338 | in->wanted_max_size = 0; | |
5339 | in->requested_max_size = 0; | |
5340 | } | |
5341 | } | |
5342 | ||
5343 | bool check = false; | |
a8e16298 TL |
5344 | if ((was_stale || m->get_op() == CEPH_CAP_OP_IMPORT) && |
5345 | (wanted & ~(cap->wanted | new_caps))) { | |
5346 | // If mds is importing cap, prior cap messages that update 'wanted' | |
5347 | // may get dropped by mds (migrate seq mismatch). | |
5348 | // | |
5349 | // We don't send cap message to update 'wanted' if what we want are | |
5350 | // already issued. If mds revokes caps, cap message that releases caps | |
5351 | // also tells mds what we want. But if caps got revoked by mds forcedly | |
5352 | // (session stale). We may haven't told mds what we want. | |
7c673cae | 5353 | check = true; |
a8e16298 | 5354 | } |
7c673cae | 5355 | |
7c673cae FG |
5356 | |
5357 | // update caps | |
a8e16298 | 5358 | auto revoked = cap->issued & ~new_caps; |
b32b8144 FG |
5359 | if (revoked) { |
5360 | ldout(cct, 10) << " revocation of " << ccap_string(revoked) << dendl; | |
7c673cae FG |
5361 | cap->issued = new_caps; |
5362 | cap->implemented |= new_caps; | |
5363 | ||
b32b8144 FG |
5364 | // recall delegations if we're losing caps necessary for them |
5365 | if (revoked & ceph_deleg_caps_for_type(CEPH_DELEGATION_RD)) | |
5366 | in->recall_deleg(false); | |
5367 | else if (revoked & ceph_deleg_caps_for_type(CEPH_DELEGATION_WR)) | |
5368 | in->recall_deleg(true); | |
5369 | ||
11fdf7f2 TL |
5370 | used = adjust_caps_used_for_lazyio(used, cap->issued, cap->implemented); |
5371 | if ((used & revoked & (CEPH_CAP_FILE_BUFFER | CEPH_CAP_FILE_LAZYIO)) && | |
28e407b8 | 5372 | !_flush(in, new C_Client_FlushComplete(this, in))) { |
7c673cae | 5373 | // waitin' for flush |
11fdf7f2 | 5374 | } else if (used & revoked & (CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO)) { |
7c673cae FG |
5375 | if (_release(in)) |
5376 | check = true; | |
5377 | } else { | |
5378 | cap->wanted = 0; // don't let check_caps skip sending a response to MDS | |
5379 | check = true; | |
5380 | } | |
a8e16298 TL |
5381 | } else if (cap->issued == new_caps) { |
5382 | ldout(cct, 10) << " caps unchanged at " << ccap_string(cap->issued) << dendl; | |
7c673cae | 5383 | } else { |
a8e16298 | 5384 | ldout(cct, 10) << " grant, new caps are " << ccap_string(new_caps & ~cap->issued) << dendl; |
7c673cae FG |
5385 | cap->issued = new_caps; |
5386 | cap->implemented |= new_caps; | |
5387 | ||
5388 | if (cap == in->auth_cap) { | |
5389 | // non-auth MDS is revoking the newly grant caps ? | |
11fdf7f2 TL |
5390 | for (const auto &p : in->caps) { |
5391 | if (&p.second == cap) | |
7c673cae | 5392 | continue; |
11fdf7f2 | 5393 | if (p.second.implemented & ~p.second.issued & new_caps) { |
7c673cae FG |
5394 | check = true; |
5395 | break; | |
5396 | } | |
5397 | } | |
5398 | } | |
5399 | } | |
5400 | ||
5401 | if (check) | |
5402 | check_caps(in, 0); | |
5403 | ||
5404 | // wake up waiters | |
5405 | if (new_caps) | |
5406 | signal_cond_list(in->waitfor_caps); | |
5407 | ||
5408 | // may drop inode's last ref | |
5409 | if (deleted_inode) | |
5410 | _try_to_trim_inode(in, true); | |
7c673cae FG |
5411 | } |
5412 | ||
7c673cae FG |
5413 | int Client::inode_permission(Inode *in, const UserPerm& perms, unsigned want) |
5414 | { | |
5415 | if (perms.uid() == 0) | |
5416 | return 0; | |
5417 | ||
5418 | if (perms.uid() != in->uid && (in->mode & S_IRWXG)) { | |
5419 | int ret = _posix_acl_permission(in, perms, want); | |
5420 | if (ret != -EAGAIN) | |
5421 | return ret; | |
5422 | } | |
5423 | ||
5424 | // check permissions before doing anything else | |
5425 | if (!in->check_mode(perms, want)) | |
5426 | return -EACCES; | |
5427 | return 0; | |
5428 | } | |
5429 | ||
5430 | int Client::xattr_permission(Inode *in, const char *name, unsigned want, | |
5431 | const UserPerm& perms) | |
5432 | { | |
5433 | int r = _getattr_for_perm(in, perms); | |
5434 | if (r < 0) | |
5435 | goto out; | |
5436 | ||
5437 | r = 0; | |
5438 | if (strncmp(name, "system.", 7) == 0) { | |
5439 | if ((want & MAY_WRITE) && (perms.uid() != 0 && perms.uid() != in->uid)) | |
5440 | r = -EPERM; | |
5441 | } else { | |
5442 | r = inode_permission(in, perms, want); | |
5443 | } | |
5444 | out: | |
1adf2230 | 5445 | ldout(cct, 5) << __func__ << " " << in << " = " << r << dendl; |
7c673cae FG |
5446 | return r; |
5447 | } | |
5448 | ||
5449 | ostream& operator<<(ostream &out, const UserPerm& perm) { | |
5450 | out << "UserPerm(uid: " << perm.uid() << ", gid: " << perm.gid() << ")"; | |
5451 | return out; | |
5452 | } | |
5453 | ||
5454 | int Client::may_setattr(Inode *in, struct ceph_statx *stx, int mask, | |
5455 | const UserPerm& perms) | |
5456 | { | |
181888fb | 5457 | ldout(cct, 20) << __func__ << " " << *in << "; " << perms << dendl; |
7c673cae FG |
5458 | int r = _getattr_for_perm(in, perms); |
5459 | if (r < 0) | |
5460 | goto out; | |
5461 | ||
5462 | if (mask & CEPH_SETATTR_SIZE) { | |
5463 | r = inode_permission(in, perms, MAY_WRITE); | |
5464 | if (r < 0) | |
5465 | goto out; | |
5466 | } | |
5467 | ||
5468 | r = -EPERM; | |
5469 | if (mask & CEPH_SETATTR_UID) { | |
5470 | if (perms.uid() != 0 && (perms.uid() != in->uid || stx->stx_uid != in->uid)) | |
5471 | goto out; | |
5472 | } | |
5473 | if (mask & CEPH_SETATTR_GID) { | |
5474 | if (perms.uid() != 0 && (perms.uid() != in->uid || | |
5475 | (!perms.gid_in_groups(stx->stx_gid) && stx->stx_gid != in->gid))) | |
5476 | goto out; | |
5477 | } | |
5478 | ||
5479 | if (mask & CEPH_SETATTR_MODE) { | |
5480 | if (perms.uid() != 0 && perms.uid() != in->uid) | |
5481 | goto out; | |
5482 | ||
5483 | gid_t i_gid = (mask & CEPH_SETATTR_GID) ? stx->stx_gid : in->gid; | |
5484 | if (perms.uid() != 0 && !perms.gid_in_groups(i_gid)) | |
5485 | stx->stx_mode &= ~S_ISGID; | |
5486 | } | |
5487 | ||
5488 | if (mask & (CEPH_SETATTR_CTIME | CEPH_SETATTR_BTIME | | |
5489 | CEPH_SETATTR_MTIME | CEPH_SETATTR_ATIME)) { | |
5490 | if (perms.uid() != 0 && perms.uid() != in->uid) { | |
5491 | int check_mask = CEPH_SETATTR_CTIME | CEPH_SETATTR_BTIME; | |
5492 | if (!(mask & CEPH_SETATTR_MTIME_NOW)) | |
5493 | check_mask |= CEPH_SETATTR_MTIME; | |
5494 | if (!(mask & CEPH_SETATTR_ATIME_NOW)) | |
5495 | check_mask |= CEPH_SETATTR_ATIME; | |
5496 | if (check_mask & mask) { | |
5497 | goto out; | |
5498 | } else { | |
5499 | r = inode_permission(in, perms, MAY_WRITE); | |
5500 | if (r < 0) | |
5501 | goto out; | |
5502 | } | |
5503 | } | |
5504 | } | |
5505 | r = 0; | |
5506 | out: | |
5507 | ldout(cct, 3) << __func__ << " " << in << " = " << r << dendl; | |
5508 | return r; | |
5509 | } | |
5510 | ||
5511 | int Client::may_open(Inode *in, int flags, const UserPerm& perms) | |
5512 | { | |
181888fb | 5513 | ldout(cct, 20) << __func__ << " " << *in << "; " << perms << dendl; |
7c673cae FG |
5514 | unsigned want = 0; |
5515 | ||
5516 | if ((flags & O_ACCMODE) == O_WRONLY) | |
5517 | want = MAY_WRITE; | |
5518 | else if ((flags & O_ACCMODE) == O_RDWR) | |
5519 | want = MAY_READ | MAY_WRITE; | |
5520 | else if ((flags & O_ACCMODE) == O_RDONLY) | |
5521 | want = MAY_READ; | |
5522 | if (flags & O_TRUNC) | |
5523 | want |= MAY_WRITE; | |
5524 | ||
5525 | int r = 0; | |
5526 | switch (in->mode & S_IFMT) { | |
5527 | case S_IFLNK: | |
5528 | r = -ELOOP; | |
5529 | goto out; | |
5530 | case S_IFDIR: | |
5531 | if (want & MAY_WRITE) { | |
5532 | r = -EISDIR; | |
5533 | goto out; | |
5534 | } | |
5535 | break; | |
5536 | } | |
5537 | ||
5538 | r = _getattr_for_perm(in, perms); | |
5539 | if (r < 0) | |
5540 | goto out; | |
5541 | ||
5542 | r = inode_permission(in, perms, want); | |
5543 | out: | |
5544 | ldout(cct, 3) << __func__ << " " << in << " = " << r << dendl; | |
5545 | return r; | |
5546 | } | |
5547 | ||
5548 | int Client::may_lookup(Inode *dir, const UserPerm& perms) | |
5549 | { | |
181888fb | 5550 | ldout(cct, 20) << __func__ << " " << *dir << "; " << perms << dendl; |
7c673cae FG |
5551 | int r = _getattr_for_perm(dir, perms); |
5552 | if (r < 0) | |
5553 | goto out; | |
5554 | ||
5555 | r = inode_permission(dir, perms, MAY_EXEC); | |
5556 | out: | |
5557 | ldout(cct, 3) << __func__ << " " << dir << " = " << r << dendl; | |
5558 | return r; | |
5559 | } | |
5560 | ||
5561 | int Client::may_create(Inode *dir, const UserPerm& perms) | |
5562 | { | |
181888fb | 5563 | ldout(cct, 20) << __func__ << " " << *dir << "; " << perms << dendl; |
7c673cae FG |
5564 | int r = _getattr_for_perm(dir, perms); |
5565 | if (r < 0) | |
5566 | goto out; | |
5567 | ||
5568 | r = inode_permission(dir, perms, MAY_EXEC | MAY_WRITE); | |
5569 | out: | |
5570 | ldout(cct, 3) << __func__ << " " << dir << " = " << r << dendl; | |
5571 | return r; | |
5572 | } | |
5573 | ||
5574 | int Client::may_delete(Inode *dir, const char *name, const UserPerm& perms) | |
5575 | { | |
181888fb | 5576 | ldout(cct, 20) << __func__ << " " << *dir << "; " << "; name " << name << "; " << perms << dendl; |
7c673cae FG |
5577 | int r = _getattr_for_perm(dir, perms); |
5578 | if (r < 0) | |
5579 | goto out; | |
5580 | ||
5581 | r = inode_permission(dir, perms, MAY_EXEC | MAY_WRITE); | |
5582 | if (r < 0) | |
5583 | goto out; | |
5584 | ||
5585 | /* 'name == NULL' means rmsnap */ | |
5586 | if (perms.uid() != 0 && name && (dir->mode & S_ISVTX)) { | |
5587 | InodeRef otherin; | |
5588 | r = _lookup(dir, name, CEPH_CAP_AUTH_SHARED, &otherin, perms); | |
5589 | if (r < 0) | |
5590 | goto out; | |
5591 | if (dir->uid != perms.uid() && otherin->uid != perms.uid()) | |
5592 | r = -EPERM; | |
5593 | } | |
5594 | out: | |
5595 | ldout(cct, 3) << __func__ << " " << dir << " = " << r << dendl; | |
5596 | return r; | |
5597 | } | |
5598 | ||
5599 | int Client::may_hardlink(Inode *in, const UserPerm& perms) | |
5600 | { | |
181888fb | 5601 | ldout(cct, 20) << __func__ << " " << *in << "; " << perms << dendl; |
7c673cae FG |
5602 | int r = _getattr_for_perm(in, perms); |
5603 | if (r < 0) | |
5604 | goto out; | |
5605 | ||
5606 | if (perms.uid() == 0 || perms.uid() == in->uid) { | |
5607 | r = 0; | |
5608 | goto out; | |
5609 | } | |
5610 | ||
5611 | r = -EPERM; | |
5612 | if (!S_ISREG(in->mode)) | |
5613 | goto out; | |
5614 | ||
5615 | if (in->mode & S_ISUID) | |
5616 | goto out; | |
5617 | ||
5618 | if ((in->mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) | |
5619 | goto out; | |
5620 | ||
5621 | r = inode_permission(in, perms, MAY_READ | MAY_WRITE); | |
5622 | out: | |
5623 | ldout(cct, 3) << __func__ << " " << in << " = " << r << dendl; | |
5624 | return r; | |
5625 | } | |
5626 | ||
5627 | int Client::_getattr_for_perm(Inode *in, const UserPerm& perms) | |
5628 | { | |
5629 | int mask = CEPH_STAT_CAP_MODE; | |
5630 | bool force = false; | |
5631 | if (acl_type != NO_ACL) { | |
5632 | mask |= CEPH_STAT_CAP_XATTR; | |
5633 | force = in->xattr_version == 0; | |
5634 | } | |
5635 | return _getattr(in, mask, perms, force); | |
5636 | } | |
5637 | ||
5638 | vinodeno_t Client::_get_vino(Inode *in) | |
5639 | { | |
5640 | /* The caller must hold the client lock */ | |
5641 | return vinodeno_t(in->ino, in->snapid); | |
5642 | } | |
5643 | ||
7c673cae FG |
5644 | /** |
5645 | * Resolve an MDS spec to a list of MDS daemon GIDs. | |
5646 | * | |
5647 | * The spec is a string representing a GID, rank, filesystem:rank, or name/id. | |
5648 | * It may be '*' in which case it matches all GIDs. | |
5649 | * | |
5650 | * If no error is returned, the `targets` vector will be populated with at least | |
5651 | * one MDS. | |
5652 | */ | |
5653 | int Client::resolve_mds( | |
5654 | const std::string &mds_spec, | |
5655 | std::vector<mds_gid_t> *targets) | |
5656 | { | |
11fdf7f2 TL |
5657 | ceph_assert(fsmap); |
5658 | ceph_assert(targets != nullptr); | |
7c673cae FG |
5659 | |
5660 | mds_role_t role; | |
5661 | std::stringstream ss; | |
5662 | int role_r = fsmap->parse_role(mds_spec, &role, ss); | |
5663 | if (role_r == 0) { | |
5664 | // We got a role, resolve it to a GID | |
5665 | ldout(cct, 10) << __func__ << ": resolved '" << mds_spec << "' to role '" | |
5666 | << role << "'" << dendl; | |
5667 | targets->push_back( | |
5668 | fsmap->get_filesystem(role.fscid)->mds_map.get_info(role.rank).global_id); | |
5669 | return 0; | |
5670 | } | |
5671 | ||
5672 | std::string strtol_err; | |
5673 | long long rank_or_gid = strict_strtoll(mds_spec.c_str(), 10, &strtol_err); | |
5674 | if (strtol_err.empty()) { | |
5675 | // It is a possible GID | |
5676 | const mds_gid_t mds_gid = mds_gid_t(rank_or_gid); | |
5677 | if (fsmap->gid_exists(mds_gid)) { | |
5678 | ldout(cct, 10) << __func__ << ": validated GID " << mds_gid << dendl; | |
5679 | targets->push_back(mds_gid); | |
5680 | } else { | |
5681 | lderr(cct) << __func__ << ": GID " << mds_gid << " not in MDS map" | |
5682 | << dendl; | |
5683 | return -ENOENT; | |
5684 | } | |
5685 | } else if (mds_spec == "*") { | |
5686 | // It is a wildcard: use all MDSs | |
5687 | const auto mds_info = fsmap->get_mds_info(); | |
5688 | ||
5689 | if (mds_info.empty()) { | |
5690 | lderr(cct) << __func__ << ": * passed but no MDS daemons found" << dendl; | |
5691 | return -ENOENT; | |
5692 | } | |
5693 | ||
5694 | for (const auto i : mds_info) { | |
5695 | targets->push_back(i.first); | |
5696 | } | |
5697 | } else { | |
5698 | // It did not parse as an integer, it is not a wildcard, it must be a name | |
5699 | const mds_gid_t mds_gid = fsmap->find_mds_gid_by_name(mds_spec); | |
5700 | if (mds_gid == 0) { | |
5701 | lderr(cct) << "MDS ID '" << mds_spec << "' not found" << dendl; | |
5702 | ||
5703 | lderr(cct) << "FSMap: " << *fsmap << dendl; | |
5704 | ||
5705 | return -ENOENT; | |
5706 | } else { | |
5707 | ldout(cct, 10) << __func__ << ": resolved ID '" << mds_spec | |
5708 | << "' to GID " << mds_gid << dendl; | |
5709 | targets->push_back(mds_gid); | |
5710 | } | |
5711 | } | |
5712 | ||
5713 | return 0; | |
5714 | } | |
5715 | ||
5716 | ||
5717 | /** | |
5718 | * Authenticate with mon and establish global ID | |
5719 | */ | |
5720 | int Client::authenticate() | |
5721 | { | |
9f95a23c | 5722 | ceph_assert(ceph_mutex_is_locked_by_me(client_lock)); |
7c673cae FG |
5723 | |
5724 | if (monclient->is_authenticated()) { | |
5725 | return 0; | |
5726 | } | |
5727 | ||
9f95a23c | 5728 | client_lock.unlock(); |
7c673cae | 5729 | int r = monclient->authenticate(cct->_conf->client_mount_timeout); |
9f95a23c | 5730 | client_lock.lock(); |
7c673cae FG |
5731 | if (r < 0) { |
5732 | return r; | |
5733 | } | |
5734 | ||
5735 | whoami = monclient->get_global_id(); | |
5736 | messenger->set_myname(entity_name_t::CLIENT(whoami.v)); | |
5737 | ||
5738 | return 0; | |
5739 | } | |
5740 | ||
5741 | int Client::fetch_fsmap(bool user) | |
5742 | { | |
5743 | int r; | |
5744 | // Retrieve FSMap to enable looking up daemon addresses. We need FSMap | |
5745 | // rather than MDSMap because no one MDSMap contains all the daemons, and | |
5746 | // a `tell` can address any daemon. | |
5747 | version_t fsmap_latest; | |
5748 | do { | |
5749 | C_SaferCond cond; | |
5750 | monclient->get_version("fsmap", &fsmap_latest, NULL, &cond); | |
9f95a23c | 5751 | client_lock.unlock(); |
7c673cae | 5752 | r = cond.wait(); |
9f95a23c | 5753 | client_lock.lock(); |
7c673cae FG |
5754 | } while (r == -EAGAIN); |
5755 | ||
5756 | if (r < 0) { | |
5757 | lderr(cct) << "Failed to learn FSMap version: " << cpp_strerror(r) << dendl; | |
5758 | return r; | |
5759 | } | |
5760 | ||
5761 | ldout(cct, 10) << __func__ << " learned FSMap version " << fsmap_latest << dendl; | |
5762 | ||
5763 | if (user) { | |
5764 | if (!fsmap_user || fsmap_user->get_epoch() < fsmap_latest) { | |
5765 | monclient->sub_want("fsmap.user", fsmap_latest, CEPH_SUBSCRIBE_ONETIME); | |
5766 | monclient->renew_subs(); | |
5767 | wait_on_list(waiting_for_fsmap); | |
5768 | } | |
11fdf7f2 TL |
5769 | ceph_assert(fsmap_user); |
5770 | ceph_assert(fsmap_user->get_epoch() >= fsmap_latest); | |
7c673cae FG |
5771 | } else { |
5772 | if (!fsmap || fsmap->get_epoch() < fsmap_latest) { | |
5773 | monclient->sub_want("fsmap", fsmap_latest, CEPH_SUBSCRIBE_ONETIME); | |
5774 | monclient->renew_subs(); | |
5775 | wait_on_list(waiting_for_fsmap); | |
5776 | } | |
11fdf7f2 TL |
5777 | ceph_assert(fsmap); |
5778 | ceph_assert(fsmap->get_epoch() >= fsmap_latest); | |
7c673cae FG |
5779 | } |
5780 | ldout(cct, 10) << __func__ << " finished waiting for FSMap version " | |
5781 | << fsmap_latest << dendl; | |
5782 | return 0; | |
5783 | } | |
5784 | ||
5785 | /** | |
5786 | * | |
5787 | * @mds_spec one of ID, rank, GID, "*" | |
5788 | * | |
5789 | */ | |
5790 | int Client::mds_command( | |
5791 | const std::string &mds_spec, | |
5792 | const vector<string>& cmd, | |
5793 | const bufferlist& inbl, | |
5794 | bufferlist *outbl, | |
5795 | string *outs, | |
5796 | Context *onfinish) | |
5797 | { | |
11fdf7f2 | 5798 | std::lock_guard lock(client_lock); |
7c673cae | 5799 | |
181888fb FG |
5800 | if (!initialized) |
5801 | return -ENOTCONN; | |
7c673cae FG |
5802 | |
5803 | int r; | |
5804 | r = authenticate(); | |
5805 | if (r < 0) { | |
5806 | return r; | |
5807 | } | |
5808 | ||
5809 | r = fetch_fsmap(false); | |
5810 | if (r < 0) { | |
5811 | return r; | |
5812 | } | |
5813 | ||
5814 | // Look up MDS target(s) of the command | |
5815 | std::vector<mds_gid_t> targets; | |
5816 | r = resolve_mds(mds_spec, &targets); | |
5817 | if (r < 0) { | |
5818 | return r; | |
5819 | } | |
5820 | ||
5821 | // If daemons are laggy, we won't send them commands. If all | |
5822 | // are laggy then we fail. | |
5823 | std::vector<mds_gid_t> non_laggy; | |
5824 | for (const auto gid : targets) { | |
5825 | const auto info = fsmap->get_info_gid(gid); | |
5826 | if (!info.laggy()) { | |
5827 | non_laggy.push_back(gid); | |
5828 | } | |
5829 | } | |
5830 | if (non_laggy.size() == 0) { | |
5831 | *outs = "All targeted MDS daemons are laggy"; | |
5832 | return -ENOENT; | |
5833 | } | |
5834 | ||
5835 | if (metadata.empty()) { | |
5836 | // We are called on an unmounted client, so metadata | |
5837 | // won't be initialized yet. | |
5838 | populate_metadata(""); | |
5839 | } | |
5840 | ||
5841 | // Send commands to targets | |
5842 | C_GatherBuilder gather(cct, onfinish); | |
5843 | for (const auto target_gid : non_laggy) { | |
5844 | const auto info = fsmap->get_info_gid(target_gid); | |
5845 | ||
5846 | // Open a connection to the target MDS | |
11fdf7f2 | 5847 | ConnectionRef conn = messenger->connect_to_mds(info.get_addrs()); |
7c673cae FG |
5848 | |
5849 | // Generate MDSCommandOp state | |
5850 | auto &op = command_table.start_command(); | |
5851 | ||
5852 | op.on_finish = gather.new_sub(); | |
5853 | op.cmd = cmd; | |
5854 | op.outbl = outbl; | |
5855 | op.outs = outs; | |
5856 | op.inbl = inbl; | |
5857 | op.mds_gid = target_gid; | |
5858 | op.con = conn; | |
5859 | ||
5860 | ldout(cct, 4) << __func__ << ": new command op to " << target_gid | |
5861 | << " tid=" << op.tid << cmd << dendl; | |
5862 | ||
5863 | // Construct and send MCommand | |
11fdf7f2 TL |
5864 | auto m = op.get_message(monclient->get_fsid()); |
5865 | conn->send_message2(std::move(m)); | |
7c673cae FG |
5866 | } |
5867 | gather.activate(); | |
5868 | ||
5869 | return 0; | |
5870 | } | |
5871 | ||
11fdf7f2 | 5872 | void Client::handle_command_reply(const MConstRef<MCommandReply>& m) |
7c673cae FG |
5873 | { |
5874 | ceph_tid_t const tid = m->get_tid(); | |
5875 | ||
5876 | ldout(cct, 10) << __func__ << ": tid=" << m->get_tid() << dendl; | |
5877 | ||
5878 | if (!command_table.exists(tid)) { | |
5879 | ldout(cct, 1) << __func__ << ": unknown tid " << tid << ", dropping" << dendl; | |
7c673cae FG |
5880 | return; |
5881 | } | |
5882 | ||
5883 | auto &op = command_table.get_command(tid); | |
5884 | if (op.outbl) { | |
11fdf7f2 | 5885 | *op.outbl = m->get_data(); |
7c673cae FG |
5886 | } |
5887 | if (op.outs) { | |
5888 | *op.outs = m->rs; | |
5889 | } | |
5890 | ||
5891 | if (op.on_finish) { | |
5892 | op.on_finish->complete(m->r); | |
5893 | } | |
5894 | ||
5895 | command_table.erase(tid); | |
7c673cae FG |
5896 | } |
5897 | ||
5898 | // ------------------- | |
5899 | // MOUNT | |
5900 | ||
11fdf7f2 | 5901 | int Client::subscribe_mdsmap(const std::string &fs_name) |
7c673cae | 5902 | { |
7c673cae FG |
5903 | int r = authenticate(); |
5904 | if (r < 0) { | |
5905 | lderr(cct) << "authentication failed: " << cpp_strerror(r) << dendl; | |
5906 | return r; | |
5907 | } | |
5908 | ||
11fdf7f2 TL |
5909 | std::string resolved_fs_name; |
5910 | if (fs_name.empty()) { | |
9f95a23c TL |
5911 | resolved_fs_name = cct->_conf.get_val<std::string>("client_fs"); |
5912 | if (resolved_fs_name.empty()) | |
5913 | // Try the backwards compatibility fs name option | |
5914 | resolved_fs_name = cct->_conf.get_val<std::string>("client_mds_namespace"); | |
11fdf7f2 TL |
5915 | } else { |
5916 | resolved_fs_name = fs_name; | |
5917 | } | |
5918 | ||
7c673cae | 5919 | std::string want = "mdsmap"; |
11fdf7f2 | 5920 | if (!resolved_fs_name.empty()) { |
7c673cae FG |
5921 | r = fetch_fsmap(true); |
5922 | if (r < 0) | |
5923 | return r; | |
11fdf7f2 TL |
5924 | fscid = fsmap_user->get_fs_cid(resolved_fs_name); |
5925 | if (fscid == FS_CLUSTER_ID_NONE) { | |
7c673cae | 5926 | return -ENOENT; |
11fdf7f2 | 5927 | } |
7c673cae FG |
5928 | |
5929 | std::ostringstream oss; | |
11fdf7f2 | 5930 | oss << want << "." << fscid; |
7c673cae FG |
5931 | want = oss.str(); |
5932 | } | |
5933 | ldout(cct, 10) << "Subscribing to map '" << want << "'" << dendl; | |
5934 | ||
5935 | monclient->sub_want(want, 0, 0); | |
5936 | monclient->renew_subs(); | |
5937 | ||
11fdf7f2 TL |
5938 | return 0; |
5939 | } | |
5940 | ||
5941 | int Client::mount(const std::string &mount_root, const UserPerm& perms, | |
5942 | bool require_mds, const std::string &fs_name) | |
5943 | { | |
5944 | std::lock_guard lock(client_lock); | |
5945 | ||
5946 | if (mounted) { | |
5947 | ldout(cct, 5) << "already mounted" << dendl; | |
5948 | return 0; | |
5949 | } | |
5950 | ||
5951 | unmounting = false; | |
5952 | ||
5953 | int r = subscribe_mdsmap(fs_name); | |
5954 | if (r < 0) { | |
5955 | lderr(cct) << "mdsmap subscription failed: " << cpp_strerror(r) << dendl; | |
5956 | return r; | |
5957 | } | |
5958 | ||
7c673cae FG |
5959 | tick(); // start tick |
5960 | ||
5961 | if (require_mds) { | |
5962 | while (1) { | |
5963 | auto availability = mdsmap->is_cluster_available(); | |
5964 | if (availability == MDSMap::STUCK_UNAVAILABLE) { | |
5965 | // Error out | |
5966 | ldout(cct, 10) << "mds cluster unavailable: epoch=" << mdsmap->get_epoch() << dendl; | |
5967 | return CEPH_FUSE_NO_MDS_UP; | |
5968 | } else if (availability == MDSMap::AVAILABLE) { | |
5969 | // Continue to mount | |
5970 | break; | |
5971 | } else if (availability == MDSMap::TRANSIENT_UNAVAILABLE) { | |
5972 | // Else, wait. MDSMonitor will update the map to bring | |
5973 | // us to a conclusion eventually. | |
5974 | wait_on_list(waiting_for_mdsmap); | |
5975 | } else { | |
5976 | // Unexpected value! | |
5977 | ceph_abort(); | |
5978 | } | |
5979 | } | |
5980 | } | |
5981 | ||
5982 | populate_metadata(mount_root.empty() ? "/" : mount_root); | |
5983 | ||
5984 | filepath fp(CEPH_INO_ROOT); | |
5985 | if (!mount_root.empty()) { | |
5986 | fp = filepath(mount_root.c_str()); | |
5987 | } | |
5988 | while (true) { | |
5989 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_GETATTR); | |
5990 | req->set_filepath(fp); | |
5991 | req->head.args.getattr.mask = CEPH_STAT_CAP_INODE_ALL; | |
5992 | int res = make_request(req, perms); | |
5993 | if (res < 0) { | |
5994 | if (res == -EACCES && root) { | |
5995 | ldout(cct, 1) << __func__ << " EACCES on parent of mount point; quotas may not work" << dendl; | |
5996 | break; | |
5997 | } | |
5998 | return res; | |
5999 | } | |
6000 | ||
6001 | if (fp.depth()) | |
6002 | fp.pop_dentry(); | |
6003 | else | |
6004 | break; | |
6005 | } | |
6006 | ||
11fdf7f2 | 6007 | ceph_assert(root); |
7c673cae FG |
6008 | _ll_get(root); |
6009 | ||
6010 | mounted = true; | |
6011 | ||
6012 | // trace? | |
6013 | if (!cct->_conf->client_trace.empty()) { | |
6014 | traceout.open(cct->_conf->client_trace.c_str()); | |
6015 | if (traceout.is_open()) { | |
6016 | ldout(cct, 1) << "opened trace file '" << cct->_conf->client_trace << "'" << dendl; | |
6017 | } else { | |
6018 | ldout(cct, 1) << "FAILED to open trace file '" << cct->_conf->client_trace << "'" << dendl; | |
6019 | } | |
6020 | } | |
6021 | ||
6022 | /* | |
6023 | ldout(cct, 3) << "op: // client trace data structs" << dendl; | |
6024 | ldout(cct, 3) << "op: struct stat st;" << dendl; | |
6025 | ldout(cct, 3) << "op: struct utimbuf utim;" << dendl; | |
6026 | ldout(cct, 3) << "op: int readlinkbuf_len = 1000;" << dendl; | |
6027 | ldout(cct, 3) << "op: char readlinkbuf[readlinkbuf_len];" << dendl; | |
6028 | ldout(cct, 3) << "op: map<string, inode_t*> dir_contents;" << dendl; | |
6029 | ldout(cct, 3) << "op: map<int, int> open_files;" << dendl; | |
6030 | ldout(cct, 3) << "op: int fd;" << dendl; | |
6031 | */ | |
6032 | return 0; | |
6033 | } | |
6034 | ||
6035 | // UNMOUNT | |
6036 | ||
6037 | void Client::_close_sessions() | |
6038 | { | |
f6b5b4d7 TL |
6039 | for (auto it = mds_sessions.begin(); it != mds_sessions.end(); ) { |
6040 | if (it->second.state == MetaSession::STATE_REJECTED) | |
6041 | mds_sessions.erase(it++); | |
6042 | else | |
6043 | ++it; | |
6044 | } | |
6045 | ||
7c673cae FG |
6046 | while (!mds_sessions.empty()) { |
6047 | // send session closes! | |
11fdf7f2 TL |
6048 | for (auto &p : mds_sessions) { |
6049 | if (p.second.state != MetaSession::STATE_CLOSING) { | |
6050 | _close_mds_session(&p.second); | |
f6b5b4d7 | 6051 | mds_ranks_closing.insert(p.first); |
7c673cae FG |
6052 | } |
6053 | } | |
6054 | ||
6055 | // wait for sessions to close | |
f6b5b4d7 TL |
6056 | double timo = cct->_conf.get_val<std::chrono::seconds>("client_shutdown_timeout").count(); |
6057 | ldout(cct, 2) << "waiting for " << mds_ranks_closing.size() << " mds session(s) to close (timeout: " | |
6058 | << timo << "s)" << dendl; | |
9f95a23c | 6059 | std::unique_lock l{client_lock, std::adopt_lock}; |
f6b5b4d7 TL |
6060 | if (!timo) { |
6061 | mount_cond.wait(l); | |
6062 | } else if (!mount_cond.wait_for(l, ceph::make_timespan(timo), [this] { return mds_ranks_closing.empty(); })) { | |
6063 | ldout(cct, 1) << mds_ranks_closing.size() << " mds(s) did not respond to session close -- timing out." << dendl; | |
6064 | while (!mds_ranks_closing.empty()) { | |
6065 | auto session = mds_sessions.at(*mds_ranks_closing.begin()); | |
6066 | // this prunes entry from mds_sessions and mds_ranks_closing | |
6067 | _closed_mds_session(&session, -ETIMEDOUT); | |
6068 | } | |
6069 | } | |
6070 | ||
6071 | mds_ranks_closing.clear(); | |
9f95a23c | 6072 | l.release(); |
7c673cae FG |
6073 | } |
6074 | } | |
6075 | ||
31f18b77 FG |
6076 | void Client::flush_mdlog_sync() |
6077 | { | |
6078 | if (mds_requests.empty()) | |
6079 | return; | |
11fdf7f2 TL |
6080 | for (auto &p : mds_sessions) { |
6081 | flush_mdlog(&p.second); | |
31f18b77 FG |
6082 | } |
6083 | } | |
6084 | ||
6085 | void Client::flush_mdlog(MetaSession *session) | |
6086 | { | |
6087 | // Only send this to Luminous or newer MDS daemons, older daemons | |
6088 | // will crash if they see an unknown CEPH_SESSION_* value in this msg. | |
6089 | const uint64_t features = session->con->get_features(); | |
6090 | if (HAVE_FEATURE(features, SERVER_LUMINOUS)) { | |
9f95a23c | 6091 | auto m = make_message<MClientSession>(CEPH_SESSION_REQUEST_FLUSH_MDLOG); |
11fdf7f2 | 6092 | session->con->send_message2(std::move(m)); |
31f18b77 FG |
6093 | } |
6094 | } | |
6095 | ||
6096 | ||
11fdf7f2 TL |
6097 | void Client::_abort_mds_sessions(int err) |
6098 | { | |
6099 | for (auto p = mds_requests.begin(); p != mds_requests.end(); ) { | |
6100 | auto req = p->second; | |
6101 | ++p; | |
6102 | // unsafe requests will be removed during close session below. | |
6103 | if (req->got_unsafe) | |
6104 | continue; | |
6105 | ||
6106 | req->abort(err); | |
6107 | if (req->caller_cond) { | |
6108 | req->kick = true; | |
9f95a23c | 6109 | req->caller_cond->notify_all(); |
11fdf7f2 TL |
6110 | } |
6111 | } | |
6112 | ||
6113 | // Process aborts on any requests that were on this waitlist. | |
6114 | // Any requests that were on a waiting_for_open session waitlist | |
6115 | // will get kicked during close session below. | |
6116 | signal_cond_list(waiting_for_mdsmap); | |
6117 | ||
6118 | // Force-close all sessions | |
6119 | while(!mds_sessions.empty()) { | |
6120 | auto& session = mds_sessions.begin()->second; | |
f6b5b4d7 | 6121 | _closed_mds_session(&session, err); |
11fdf7f2 TL |
6122 | } |
6123 | } | |
6124 | ||
6125 | void Client::_unmount(bool abort) | |
7c673cae | 6126 | { |
9f95a23c | 6127 | std::unique_lock lock{client_lock, std::adopt_lock}; |
181888fb FG |
6128 | if (unmounting) |
6129 | return; | |
7c673cae | 6130 | |
11fdf7f2 TL |
6131 | if (abort || blacklisted) { |
6132 | ldout(cct, 2) << "unmounting (" << (abort ? "abort)" : "blacklisted)") << dendl; | |
6133 | } else { | |
6134 | ldout(cct, 2) << "unmounting" << dendl; | |
6135 | } | |
7c673cae FG |
6136 | unmounting = true; |
6137 | ||
b32b8144 FG |
6138 | deleg_timeout = 0; |
6139 | ||
11fdf7f2 TL |
6140 | if (abort) { |
6141 | // Abort all mds sessions | |
6142 | _abort_mds_sessions(-ENOTCONN); | |
6143 | ||
6144 | objecter->op_cancel_writes(-ENOTCONN); | |
6145 | } else { | |
6146 | // flush the mdlog for pending requests, if any | |
6147 | flush_mdlog_sync(); | |
6148 | } | |
6149 | ||
9f95a23c TL |
6150 | mount_cond.wait(lock, [this] { |
6151 | if (!mds_requests.empty()) { | |
6152 | ldout(cct, 10) << "waiting on " << mds_requests.size() << " requests" | |
6153 | << dendl; | |
6154 | } | |
6155 | return mds_requests.empty(); | |
6156 | }); | |
7c673cae FG |
6157 | if (tick_event) |
6158 | timer.cancel_event(tick_event); | |
6159 | tick_event = 0; | |
6160 | ||
6161 | cwd.reset(); | |
6162 | ||
6163 | // clean up any unclosed files | |
6164 | while (!fd_map.empty()) { | |
6165 | Fh *fh = fd_map.begin()->second; | |
6166 | fd_map.erase(fd_map.begin()); | |
6167 | ldout(cct, 0) << " destroyed lost open file " << fh << " on " << *fh->inode << dendl; | |
6168 | _release_fh(fh); | |
6169 | } | |
6170 | ||
6171 | while (!ll_unclosed_fh_set.empty()) { | |
6172 | set<Fh*>::iterator it = ll_unclosed_fh_set.begin(); | |
6173 | Fh *fh = *it; | |
6174 | ll_unclosed_fh_set.erase(fh); | |
6175 | ldout(cct, 0) << " destroyed lost open file " << fh << " on " << *(fh->inode) << dendl; | |
6176 | _release_fh(fh); | |
6177 | } | |
6178 | ||
6179 | while (!opened_dirs.empty()) { | |
6180 | dir_result_t *dirp = *opened_dirs.begin(); | |
6181 | ldout(cct, 0) << " destroyed lost open dir " << dirp << " on " << *dirp->inode << dendl; | |
6182 | _closedir(dirp); | |
6183 | } | |
6184 | ||
6185 | _ll_drop_pins(); | |
6186 | ||
9f95a23c TL |
6187 | mount_cond.wait(lock, [this] { |
6188 | if (unsafe_sync_write > 0) { | |
6189 | ldout(cct, 0) << unsafe_sync_write << " unsafe_sync_writes, waiting" | |
6190 | << dendl; | |
6191 | } | |
6192 | return unsafe_sync_write <= 0; | |
6193 | }); | |
7c673cae FG |
6194 | |
6195 | if (cct->_conf->client_oc) { | |
6196 | // flush/release all buffered data | |
11fdf7f2 TL |
6197 | std::list<InodeRef> anchor; |
6198 | for (auto& p : inode_map) { | |
6199 | Inode *in = p.second; | |
7c673cae | 6200 | if (!in) { |
11fdf7f2 TL |
6201 | ldout(cct, 0) << "null inode_map entry ino " << p.first << dendl; |
6202 | ceph_assert(in); | |
7c673cae | 6203 | } |
11fdf7f2 TL |
6204 | |
6205 | // prevent inode from getting freed | |
6206 | anchor.emplace_back(in); | |
6207 | ||
6208 | if (abort || blacklisted) { | |
6209 | objectcacher->purge_set(&in->oset); | |
6210 | } else if (!in->caps.empty()) { | |
7c673cae FG |
6211 | _release(in); |
6212 | _flush(in, new C_Client_FlushComplete(this, in)); | |
6213 | } | |
6214 | } | |
6215 | } | |
6216 | ||
11fdf7f2 TL |
6217 | if (abort || blacklisted) { |
6218 | for (auto p = dirty_list.begin(); !p.end(); ) { | |
6219 | Inode *in = *p; | |
6220 | ++p; | |
6221 | if (in->dirty_caps) { | |
6222 | ldout(cct, 0) << " drop dirty caps on " << *in << dendl; | |
6223 | in->mark_caps_clean(); | |
6224 | put_inode(in); | |
6225 | } | |
6226 | } | |
6227 | } else { | |
6228 | flush_caps_sync(); | |
6229 | wait_sync_caps(last_flush_tid); | |
6230 | } | |
7c673cae FG |
6231 | |
6232 | // empty lru cache | |
7c673cae FG |
6233 | trim_cache(); |
6234 | ||
6235 | while (lru.lru_get_size() > 0 || | |
6236 | !inode_map.empty()) { | |
6237 | ldout(cct, 2) << "cache still has " << lru.lru_get_size() | |
6238 | << "+" << inode_map.size() << " items" | |
6239 | << ", waiting (for caps to release?)" | |
6240 | << dendl; | |
9f95a23c TL |
6241 | if (auto r = mount_cond.wait_for(lock, ceph::make_timespan(5)); |
6242 | r == std::cv_status::timeout) { | |
7c673cae FG |
6243 | dump_cache(NULL); |
6244 | } | |
6245 | } | |
11fdf7f2 TL |
6246 | ceph_assert(lru.lru_get_size() == 0); |
6247 | ceph_assert(inode_map.empty()); | |
7c673cae FG |
6248 | |
6249 | // stop tracing | |
6250 | if (!cct->_conf->client_trace.empty()) { | |
6251 | ldout(cct, 1) << "closing trace file '" << cct->_conf->client_trace << "'" << dendl; | |
6252 | traceout.close(); | |
6253 | } | |
6254 | ||
6255 | _close_sessions(); | |
6256 | ||
6257 | mounted = false; | |
6258 | ||
9f95a23c | 6259 | lock.release(); |
7c673cae FG |
6260 | ldout(cct, 2) << "unmounted." << dendl; |
6261 | } | |
6262 | ||
b32b8144 FG |
6263 | void Client::unmount() |
6264 | { | |
11fdf7f2 TL |
6265 | std::lock_guard lock(client_lock); |
6266 | _unmount(false); | |
6267 | } | |
6268 | ||
6269 | void Client::abort_conn() | |
6270 | { | |
6271 | std::lock_guard lock(client_lock); | |
6272 | _unmount(true); | |
b32b8144 FG |
6273 | } |
6274 | ||
7c673cae FG |
6275 | void Client::flush_cap_releases() |
6276 | { | |
6277 | // send any cap releases | |
11fdf7f2 TL |
6278 | for (auto &p : mds_sessions) { |
6279 | auto &session = p.second; | |
6280 | if (session.release && mdsmap->is_clientreplay_or_active_or_stopping( | |
6281 | p.first)) { | |
7c673cae FG |
6282 | if (cct->_conf->client_inject_release_failure) { |
6283 | ldout(cct, 20) << __func__ << " injecting failure to send cap release message" << dendl; | |
7c673cae | 6284 | } else { |
11fdf7f2 | 6285 | session.con->send_message2(std::move(session.release)); |
7c673cae | 6286 | } |
11fdf7f2 | 6287 | session.release.reset(); |
7c673cae FG |
6288 | } |
6289 | } | |
6290 | } | |
6291 | ||
6292 | void Client::tick() | |
6293 | { | |
6294 | if (cct->_conf->client_debug_inject_tick_delay > 0) { | |
6295 | sleep(cct->_conf->client_debug_inject_tick_delay); | |
11fdf7f2 TL |
6296 | ceph_assert(0 == cct->_conf.set_val("client_debug_inject_tick_delay", "0")); |
6297 | cct->_conf.apply_changes(nullptr); | |
7c673cae FG |
6298 | } |
6299 | ||
6300 | ldout(cct, 21) << "tick" << dendl; | |
3efd9988 FG |
6301 | tick_event = timer.add_event_after( |
6302 | cct->_conf->client_tick_interval, | |
9f95a23c | 6303 | new LambdaContext([this](int) { |
3efd9988 | 6304 | // Called back via Timer, which takes client_lock for us |
9f95a23c | 6305 | ceph_assert(ceph_mutex_is_locked_by_me(client_lock)); |
3efd9988 FG |
6306 | tick(); |
6307 | })); | |
7c673cae FG |
6308 | utime_t now = ceph_clock_now(); |
6309 | ||
6310 | if (!mounted && !mds_requests.empty()) { | |
6311 | MetaRequest *req = mds_requests.begin()->second; | |
6312 | if (req->op_stamp + cct->_conf->client_mount_timeout < now) { | |
6313 | req->abort(-ETIMEDOUT); | |
6314 | if (req->caller_cond) { | |
6315 | req->kick = true; | |
9f95a23c | 6316 | req->caller_cond->notify_all(); |
7c673cae FG |
6317 | } |
6318 | signal_cond_list(waiting_for_mdsmap); | |
11fdf7f2 TL |
6319 | for (auto &p : mds_sessions) { |
6320 | signal_context_list(p.second.waiting_for_open); | |
6321 | } | |
7c673cae FG |
6322 | } |
6323 | } | |
6324 | ||
6325 | if (mdsmap->get_epoch()) { | |
6326 | // renew caps? | |
6327 | utime_t el = now - last_cap_renew; | |
6328 | if (el > mdsmap->get_session_timeout() / 3.0) | |
6329 | renew_caps(); | |
6330 | ||
6331 | flush_cap_releases(); | |
6332 | } | |
6333 | ||
6334 | // delayed caps | |
28e407b8 | 6335 | xlist<Inode*>::iterator p = delayed_list.begin(); |
7c673cae FG |
6336 | while (!p.end()) { |
6337 | Inode *in = *p; | |
6338 | ++p; | |
6339 | if (in->hold_caps_until > now) | |
6340 | break; | |
28e407b8 | 6341 | delayed_list.pop_front(); |
7c673cae FG |
6342 | check_caps(in, CHECK_CAPS_NODELAY); |
6343 | } | |
6344 | ||
6345 | trim_cache(true); | |
f6b5b4d7 TL |
6346 | |
6347 | if (blacklisted && mounted && | |
6348 | last_auto_reconnect + 30 * 60 < now && | |
6349 | cct->_conf.get_val<bool>("client_reconnect_stale")) { | |
6350 | messenger->client_reset(); | |
6351 | fd_gen++; // invalidate open files | |
6352 | blacklisted = false; | |
6353 | _kick_stale_sessions(); | |
6354 | last_auto_reconnect = now; | |
6355 | } | |
7c673cae FG |
6356 | } |
6357 | ||
6358 | void Client::renew_caps() | |
6359 | { | |
6360 | ldout(cct, 10) << "renew_caps()" << dendl; | |
6361 | last_cap_renew = ceph_clock_now(); | |
6362 | ||
11fdf7f2 TL |
6363 | for (auto &p : mds_sessions) { |
6364 | ldout(cct, 15) << "renew_caps requesting from mds." << p.first << dendl; | |
6365 | if (mdsmap->get_state(p.first) >= MDSMap::STATE_REJOIN) | |
6366 | renew_caps(&p.second); | |
7c673cae FG |
6367 | } |
6368 | } | |
6369 | ||
6370 | void Client::renew_caps(MetaSession *session) | |
6371 | { | |
6372 | ldout(cct, 10) << "renew_caps mds." << session->mds_num << dendl; | |
6373 | session->last_cap_renew_request = ceph_clock_now(); | |
6374 | uint64_t seq = ++session->cap_renew_seq; | |
9f95a23c | 6375 | session->con->send_message2(make_message<MClientSession>(CEPH_SESSION_REQUEST_RENEWCAPS, seq)); |
7c673cae FG |
6376 | } |
6377 | ||
6378 | ||
6379 | // =============================================================== | |
6380 | // high level (POSIXy) interface | |
6381 | ||
6382 | int Client::_do_lookup(Inode *dir, const string& name, int mask, | |
6383 | InodeRef *target, const UserPerm& perms) | |
6384 | { | |
6385 | int op = dir->snapid == CEPH_SNAPDIR ? CEPH_MDS_OP_LOOKUPSNAP : CEPH_MDS_OP_LOOKUP; | |
6386 | MetaRequest *req = new MetaRequest(op); | |
6387 | filepath path; | |
6388 | dir->make_nosnap_relative_path(path); | |
6389 | path.push_dentry(name); | |
6390 | req->set_filepath(path); | |
6391 | req->set_inode(dir); | |
6392 | if (cct->_conf->client_debug_getattr_caps && op == CEPH_MDS_OP_LOOKUP) | |
6393 | mask |= DEBUG_GETATTR_CAPS; | |
6394 | req->head.args.getattr.mask = mask; | |
6395 | ||
11fdf7f2 | 6396 | ldout(cct, 10) << __func__ << " on " << path << dendl; |
7c673cae FG |
6397 | |
6398 | int r = make_request(req, perms, target); | |
11fdf7f2 | 6399 | ldout(cct, 10) << __func__ << " res is " << r << dendl; |
7c673cae FG |
6400 | return r; |
6401 | } | |
6402 | ||
6403 | int Client::_lookup(Inode *dir, const string& dname, int mask, InodeRef *target, | |
6404 | const UserPerm& perms) | |
6405 | { | |
6406 | int r = 0; | |
6407 | Dentry *dn = NULL; | |
f91f0fd5 TL |
6408 | // can only request shared caps |
6409 | mask &= CEPH_CAP_ANY_SHARED | CEPH_STAT_RSTAT; | |
7c673cae | 6410 | |
7c673cae | 6411 | if (dname == "..") { |
11fdf7f2 TL |
6412 | if (dir->dentries.empty()) { |
6413 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_LOOKUPPARENT); | |
6414 | filepath path(dir->ino); | |
6415 | req->set_filepath(path); | |
6416 | ||
6417 | InodeRef tmptarget; | |
6418 | int r = make_request(req, perms, &tmptarget, NULL, rand() % mdsmap->get_num_in_mds()); | |
6419 | ||
6420 | if (r == 0) { | |
f91f0fd5 | 6421 | *target = std::move(tmptarget); |
11fdf7f2 TL |
6422 | ldout(cct, 8) << __func__ << " found target " << (*target)->ino << dendl; |
6423 | } else { | |
6424 | *target = dir; | |
6425 | } | |
6426 | } | |
7c673cae FG |
6427 | else |
6428 | *target = dir->get_first_parent()->dir->parent_inode; //dirs can't be hard-linked | |
6429 | goto done; | |
6430 | } | |
6431 | ||
6432 | if (dname == ".") { | |
6433 | *target = dir; | |
6434 | goto done; | |
6435 | } | |
6436 | ||
11fdf7f2 TL |
6437 | if (!dir->is_dir()) { |
6438 | r = -ENOTDIR; | |
6439 | goto done; | |
6440 | } | |
6441 | ||
7c673cae FG |
6442 | if (dname.length() > NAME_MAX) { |
6443 | r = -ENAMETOOLONG; | |
6444 | goto done; | |
6445 | } | |
6446 | ||
6447 | if (dname == cct->_conf->client_snapdir && | |
6448 | dir->snapid == CEPH_NOSNAP) { | |
6449 | *target = open_snapdir(dir); | |
6450 | goto done; | |
6451 | } | |
6452 | ||
6453 | if (dir->dir && | |
6454 | dir->dir->dentries.count(dname)) { | |
6455 | dn = dir->dir->dentries[dname]; | |
6456 | ||
11fdf7f2 | 6457 | ldout(cct, 20) << __func__ << " have dn " << dname << " mds." << dn->lease_mds << " ttl " << dn->lease_ttl |
7c673cae FG |
6458 | << " seq " << dn->lease_seq |
6459 | << dendl; | |
6460 | ||
94b18763 | 6461 | if (!dn->inode || dn->inode->caps_issued_mask(mask, true)) { |
7c673cae FG |
6462 | // is dn lease valid? |
6463 | utime_t now = ceph_clock_now(); | |
6464 | if (dn->lease_mds >= 0 && | |
6465 | dn->lease_ttl > now && | |
6466 | mds_sessions.count(dn->lease_mds)) { | |
11fdf7f2 TL |
6467 | MetaSession &s = mds_sessions.at(dn->lease_mds); |
6468 | if (s.cap_ttl > now && | |
6469 | s.cap_gen == dn->lease_gen) { | |
7c673cae FG |
6470 | // touch this mds's dir cap too, even though we don't _explicitly_ use it here, to |
6471 | // make trim_caps() behave. | |
6472 | dir->try_touch_cap(dn->lease_mds); | |
6473 | goto hit_dn; | |
6474 | } | |
11fdf7f2 | 6475 | ldout(cct, 20) << " bad lease, cap_ttl " << s.cap_ttl << ", cap_gen " << s.cap_gen |
7c673cae FG |
6476 | << " vs lease_gen " << dn->lease_gen << dendl; |
6477 | } | |
92f5a8d4 | 6478 | // dir shared caps? |
94b18763 | 6479 | if (dir->caps_issued_mask(CEPH_CAP_FILE_SHARED, true)) { |
7c673cae | 6480 | if (dn->cap_shared_gen == dir->shared_gen && |
94b18763 | 6481 | (!dn->inode || dn->inode->caps_issued_mask(mask, true))) |
7c673cae FG |
6482 | goto hit_dn; |
6483 | if (!dn->inode && (dir->flags & I_COMPLETE)) { | |
11fdf7f2 | 6484 | ldout(cct, 10) << __func__ << " concluded ENOENT locally for " |
7c673cae FG |
6485 | << *dir << " dn '" << dname << "'" << dendl; |
6486 | return -ENOENT; | |
6487 | } | |
6488 | } | |
6489 | } else { | |
6490 | ldout(cct, 20) << " no cap on " << dn->inode->vino() << dendl; | |
6491 | } | |
6492 | } else { | |
6493 | // can we conclude ENOENT locally? | |
94b18763 | 6494 | if (dir->caps_issued_mask(CEPH_CAP_FILE_SHARED, true) && |
7c673cae | 6495 | (dir->flags & I_COMPLETE)) { |
11fdf7f2 | 6496 | ldout(cct, 10) << __func__ << " concluded ENOENT locally for " << *dir << " dn '" << dname << "'" << dendl; |
7c673cae FG |
6497 | return -ENOENT; |
6498 | } | |
6499 | } | |
6500 | ||
6501 | r = _do_lookup(dir, dname, mask, target, perms); | |
6502 | goto done; | |
6503 | ||
6504 | hit_dn: | |
6505 | if (dn->inode) { | |
6506 | *target = dn->inode; | |
6507 | } else { | |
6508 | r = -ENOENT; | |
6509 | } | |
6510 | touch_dn(dn); | |
6511 | ||
6512 | done: | |
6513 | if (r < 0) | |
11fdf7f2 | 6514 | ldout(cct, 10) << __func__ << " " << *dir << " " << dname << " = " << r << dendl; |
7c673cae | 6515 | else |
11fdf7f2 | 6516 | ldout(cct, 10) << __func__ << " " << *dir << " " << dname << " = " << **target << dendl; |
7c673cae FG |
6517 | return r; |
6518 | } | |
6519 | ||
6520 | int Client::get_or_create(Inode *dir, const char* name, | |
6521 | Dentry **pdn, bool expect_null) | |
6522 | { | |
6523 | // lookup | |
11fdf7f2 | 6524 | ldout(cct, 20) << __func__ << " " << *dir << " name " << name << dendl; |
7c673cae FG |
6525 | dir->open_dir(); |
6526 | if (dir->dir->dentries.count(name)) { | |
6527 | Dentry *dn = dir->dir->dentries[name]; | |
6528 | ||
6529 | // is dn lease valid? | |
6530 | utime_t now = ceph_clock_now(); | |
6531 | if (dn->inode && | |
6532 | dn->lease_mds >= 0 && | |
6533 | dn->lease_ttl > now && | |
6534 | mds_sessions.count(dn->lease_mds)) { | |
11fdf7f2 TL |
6535 | MetaSession &s = mds_sessions.at(dn->lease_mds); |
6536 | if (s.cap_ttl > now && | |
6537 | s.cap_gen == dn->lease_gen) { | |
7c673cae FG |
6538 | if (expect_null) |
6539 | return -EEXIST; | |
6540 | } | |
6541 | } | |
6542 | *pdn = dn; | |
6543 | } else { | |
6544 | // otherwise link up a new one | |
6545 | *pdn = link(dir->dir, name, NULL, NULL); | |
6546 | } | |
6547 | ||
6548 | // success | |
6549 | return 0; | |
6550 | } | |
6551 | ||
6552 | int Client::path_walk(const filepath& origpath, InodeRef *end, | |
6553 | const UserPerm& perms, bool followsym, int mask) | |
6554 | { | |
6555 | filepath path = origpath; | |
6556 | InodeRef cur; | |
6557 | if (origpath.absolute()) | |
6558 | cur = root; | |
6559 | else | |
6560 | cur = cwd; | |
11fdf7f2 | 6561 | ceph_assert(cur); |
7c673cae | 6562 | |
11fdf7f2 | 6563 | ldout(cct, 10) << __func__ << " " << path << dendl; |
7c673cae FG |
6564 | |
6565 | int symlinks = 0; | |
6566 | ||
6567 | unsigned i=0; | |
6568 | while (i < path.depth() && cur) { | |
6569 | int caps = 0; | |
6570 | const string &dname = path[i]; | |
6571 | ldout(cct, 10) << " " << i << " " << *cur << " " << dname << dendl; | |
6572 | ldout(cct, 20) << " (path is " << path << ")" << dendl; | |
6573 | InodeRef next; | |
6574 | if (cct->_conf->client_permissions) { | |
6575 | int r = may_lookup(cur.get(), perms); | |
6576 | if (r < 0) | |
6577 | return r; | |
6578 | caps = CEPH_CAP_AUTH_SHARED; | |
6579 | } | |
6580 | ||
6581 | /* Get extra requested caps on the last component */ | |
6582 | if (i == (path.depth() - 1)) | |
6583 | caps |= mask; | |
6584 | int r = _lookup(cur.get(), dname, caps, &next, perms); | |
6585 | if (r < 0) | |
6586 | return r; | |
6587 | // only follow trailing symlink if followsym. always follow | |
6588 | // 'directory' symlinks. | |
6589 | if (next && next->is_symlink()) { | |
6590 | symlinks++; | |
6591 | ldout(cct, 20) << " symlink count " << symlinks << ", value is '" << next->symlink << "'" << dendl; | |
6592 | if (symlinks > MAXSYMLINKS) { | |
6593 | return -ELOOP; | |
6594 | } | |
6595 | ||
6596 | if (i < path.depth() - 1) { | |
6597 | // dir symlink | |
6598 | // replace consumed components of path with symlink dir target | |
6599 | filepath resolved(next->symlink.c_str()); | |
6600 | resolved.append(path.postfixpath(i + 1)); | |
6601 | path = resolved; | |
6602 | i = 0; | |
6603 | if (next->symlink[0] == '/') { | |
6604 | cur = root; | |
6605 | } | |
6606 | continue; | |
6607 | } else if (followsym) { | |
6608 | if (next->symlink[0] == '/') { | |
6609 | path = next->symlink.c_str(); | |
6610 | i = 0; | |
6611 | // reset position | |
6612 | cur = root; | |
6613 | } else { | |
6614 | filepath more(next->symlink.c_str()); | |
6615 | // we need to remove the symlink component from off of the path | |
6616 | // before adding the target that the symlink points to. remain | |
6617 | // at the same position in the path. | |
6618 | path.pop_dentry(); | |
6619 | path.append(more); | |
6620 | } | |
6621 | continue; | |
6622 | } | |
6623 | } | |
6624 | cur.swap(next); | |
6625 | i++; | |
6626 | } | |
6627 | if (!cur) | |
6628 | return -ENOENT; | |
6629 | if (end) | |
6630 | end->swap(cur); | |
6631 | return 0; | |
6632 | } | |
6633 | ||
6634 | ||
6635 | // namespace ops | |
6636 | ||
6637 | int Client::link(const char *relexisting, const char *relpath, const UserPerm& perm) | |
6638 | { | |
11fdf7f2 | 6639 | std::lock_guard lock(client_lock); |
7c673cae FG |
6640 | tout(cct) << "link" << std::endl; |
6641 | tout(cct) << relexisting << std::endl; | |
6642 | tout(cct) << relpath << std::endl; | |
6643 | ||
181888fb FG |
6644 | if (unmounting) |
6645 | return -ENOTCONN; | |
6646 | ||
7c673cae FG |
6647 | filepath existing(relexisting); |
6648 | ||
6649 | InodeRef in, dir; | |
6650 | int r = path_walk(existing, &in, perm, true); | |
6651 | if (r < 0) | |
6652 | return r; | |
6653 | if (std::string(relpath) == "/") { | |
6654 | r = -EEXIST; | |
6655 | return r; | |
6656 | } | |
6657 | filepath path(relpath); | |
6658 | string name = path.last_dentry(); | |
6659 | path.pop_dentry(); | |
6660 | ||
6661 | r = path_walk(path, &dir, perm, true); | |
6662 | if (r < 0) | |
6663 | return r; | |
6664 | if (cct->_conf->client_permissions) { | |
6665 | if (S_ISDIR(in->mode)) { | |
6666 | r = -EPERM; | |
6667 | return r; | |
6668 | } | |
6669 | r = may_hardlink(in.get(), perm); | |
6670 | if (r < 0) | |
6671 | return r; | |
6672 | r = may_create(dir.get(), perm); | |
6673 | if (r < 0) | |
6674 | return r; | |
6675 | } | |
6676 | r = _link(in.get(), dir.get(), name.c_str(), perm); | |
6677 | return r; | |
6678 | } | |
6679 | ||
6680 | int Client::unlink(const char *relpath, const UserPerm& perm) | |
6681 | { | |
11fdf7f2 TL |
6682 | std::lock_guard lock(client_lock); |
6683 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
6684 | tout(cct) << relpath << std::endl; |
6685 | ||
181888fb FG |
6686 | if (unmounting) |
6687 | return -ENOTCONN; | |
6688 | ||
7c673cae FG |
6689 | if (std::string(relpath) == "/") |
6690 | return -EISDIR; | |
6691 | ||
6692 | filepath path(relpath); | |
6693 | string name = path.last_dentry(); | |
6694 | path.pop_dentry(); | |
6695 | InodeRef dir; | |
6696 | int r = path_walk(path, &dir, perm); | |
6697 | if (r < 0) | |
6698 | return r; | |
6699 | if (cct->_conf->client_permissions) { | |
6700 | r = may_delete(dir.get(), name.c_str(), perm); | |
6701 | if (r < 0) | |
6702 | return r; | |
6703 | } | |
6704 | return _unlink(dir.get(), name.c_str(), perm); | |
6705 | } | |
6706 | ||
6707 | int Client::rename(const char *relfrom, const char *relto, const UserPerm& perm) | |
6708 | { | |
11fdf7f2 TL |
6709 | std::lock_guard lock(client_lock); |
6710 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
6711 | tout(cct) << relfrom << std::endl; |
6712 | tout(cct) << relto << std::endl; | |
6713 | ||
181888fb FG |
6714 | if (unmounting) |
6715 | return -ENOTCONN; | |
6716 | ||
7c673cae FG |
6717 | if (std::string(relfrom) == "/" || std::string(relto) == "/") |
6718 | return -EBUSY; | |
6719 | ||
6720 | filepath from(relfrom); | |
6721 | filepath to(relto); | |
6722 | string fromname = from.last_dentry(); | |
6723 | from.pop_dentry(); | |
6724 | string toname = to.last_dentry(); | |
6725 | to.pop_dentry(); | |
6726 | ||
6727 | InodeRef fromdir, todir; | |
6728 | int r = path_walk(from, &fromdir, perm); | |
6729 | if (r < 0) | |
6730 | goto out; | |
6731 | r = path_walk(to, &todir, perm); | |
6732 | if (r < 0) | |
6733 | goto out; | |
6734 | ||
6735 | if (cct->_conf->client_permissions) { | |
6736 | int r = may_delete(fromdir.get(), fromname.c_str(), perm); | |
6737 | if (r < 0) | |
6738 | return r; | |
6739 | r = may_delete(todir.get(), toname.c_str(), perm); | |
6740 | if (r < 0 && r != -ENOENT) | |
6741 | return r; | |
6742 | } | |
6743 | r = _rename(fromdir.get(), fromname.c_str(), todir.get(), toname.c_str(), perm); | |
6744 | out: | |
6745 | return r; | |
6746 | } | |
6747 | ||
6748 | // dirs | |
6749 | ||
6750 | int Client::mkdir(const char *relpath, mode_t mode, const UserPerm& perm) | |
6751 | { | |
11fdf7f2 TL |
6752 | std::lock_guard lock(client_lock); |
6753 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
6754 | tout(cct) << relpath << std::endl; |
6755 | tout(cct) << mode << std::endl; | |
11fdf7f2 | 6756 | ldout(cct, 10) << __func__ << ": " << relpath << dendl; |
7c673cae | 6757 | |
181888fb FG |
6758 | if (unmounting) |
6759 | return -ENOTCONN; | |
6760 | ||
7c673cae FG |
6761 | if (std::string(relpath) == "/") |
6762 | return -EEXIST; | |
6763 | ||
6764 | filepath path(relpath); | |
6765 | string name = path.last_dentry(); | |
6766 | path.pop_dentry(); | |
6767 | InodeRef dir; | |
6768 | int r = path_walk(path, &dir, perm); | |
6769 | if (r < 0) | |
6770 | return r; | |
6771 | if (cct->_conf->client_permissions) { | |
6772 | r = may_create(dir.get(), perm); | |
6773 | if (r < 0) | |
6774 | return r; | |
6775 | } | |
6776 | return _mkdir(dir.get(), name.c_str(), mode, perm); | |
6777 | } | |
6778 | ||
6779 | int Client::mkdirs(const char *relpath, mode_t mode, const UserPerm& perms) | |
6780 | { | |
11fdf7f2 | 6781 | std::lock_guard lock(client_lock); |
7c673cae | 6782 | ldout(cct, 10) << "Client::mkdirs " << relpath << dendl; |
11fdf7f2 | 6783 | tout(cct) << __func__ << std::endl; |
7c673cae FG |
6784 | tout(cct) << relpath << std::endl; |
6785 | tout(cct) << mode << std::endl; | |
6786 | ||
181888fb FG |
6787 | if (unmounting) |
6788 | return -ENOTCONN; | |
6789 | ||
7c673cae FG |
6790 | //get through existing parts of path |
6791 | filepath path(relpath); | |
6792 | unsigned int i; | |
6793 | int r = 0, caps = 0; | |
6794 | InodeRef cur, next; | |
6795 | cur = cwd; | |
6796 | for (i=0; i<path.depth(); ++i) { | |
6797 | if (cct->_conf->client_permissions) { | |
6798 | r = may_lookup(cur.get(), perms); | |
6799 | if (r < 0) | |
6800 | break; | |
6801 | caps = CEPH_CAP_AUTH_SHARED; | |
6802 | } | |
6803 | r = _lookup(cur.get(), path[i].c_str(), caps, &next, perms); | |
6804 | if (r < 0) | |
6805 | break; | |
6806 | cur.swap(next); | |
6807 | } | |
7c673cae | 6808 | if (r!=-ENOENT) return r; |
11fdf7f2 | 6809 | ldout(cct, 20) << __func__ << " got through " << i << " directories on path " << relpath << dendl; |
7c673cae FG |
6810 | //make new directory at each level |
6811 | for (; i<path.depth(); ++i) { | |
6812 | if (cct->_conf->client_permissions) { | |
6813 | r = may_create(cur.get(), perms); | |
6814 | if (r < 0) | |
6815 | return r; | |
6816 | } | |
6817 | //make new dir | |
6818 | r = _mkdir(cur.get(), path[i].c_str(), mode, perms, &next); | |
c07f9fc5 | 6819 | |
7c673cae | 6820 | //check proper creation/existence |
c07f9fc5 FG |
6821 | if(-EEXIST == r && i < path.depth() - 1) { |
6822 | r = _lookup(cur.get(), path[i].c_str(), CEPH_CAP_AUTH_SHARED, &next, perms); | |
6823 | } | |
6824 | if (r < 0) | |
6825 | return r; | |
7c673cae FG |
6826 | //move to new dir and continue |
6827 | cur.swap(next); | |
11fdf7f2 | 6828 | ldout(cct, 20) << __func__ << ": successfully created directory " |
7c673cae FG |
6829 | << filepath(cur->ino).get_path() << dendl; |
6830 | } | |
6831 | return 0; | |
6832 | } | |
6833 | ||
6834 | int Client::rmdir(const char *relpath, const UserPerm& perms) | |
6835 | { | |
11fdf7f2 TL |
6836 | std::lock_guard lock(client_lock); |
6837 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
6838 | tout(cct) << relpath << std::endl; |
6839 | ||
181888fb FG |
6840 | if (unmounting) |
6841 | return -ENOTCONN; | |
6842 | ||
7c673cae FG |
6843 | if (std::string(relpath) == "/") |
6844 | return -EBUSY; | |
6845 | ||
6846 | filepath path(relpath); | |
6847 | string name = path.last_dentry(); | |
6848 | path.pop_dentry(); | |
6849 | InodeRef dir; | |
6850 | int r = path_walk(path, &dir, perms); | |
6851 | if (r < 0) | |
6852 | return r; | |
6853 | if (cct->_conf->client_permissions) { | |
6854 | int r = may_delete(dir.get(), name.c_str(), perms); | |
6855 | if (r < 0) | |
6856 | return r; | |
6857 | } | |
6858 | return _rmdir(dir.get(), name.c_str(), perms); | |
6859 | } | |
6860 | ||
6861 | int Client::mknod(const char *relpath, mode_t mode, const UserPerm& perms, dev_t rdev) | |
6862 | { | |
11fdf7f2 TL |
6863 | std::lock_guard lock(client_lock); |
6864 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
6865 | tout(cct) << relpath << std::endl; |
6866 | tout(cct) << mode << std::endl; | |
6867 | tout(cct) << rdev << std::endl; | |
6868 | ||
181888fb FG |
6869 | if (unmounting) |
6870 | return -ENOTCONN; | |
6871 | ||
7c673cae FG |
6872 | if (std::string(relpath) == "/") |
6873 | return -EEXIST; | |
6874 | ||
6875 | filepath path(relpath); | |
6876 | string name = path.last_dentry(); | |
6877 | path.pop_dentry(); | |
6878 | InodeRef dir; | |
6879 | int r = path_walk(path, &dir, perms); | |
6880 | if (r < 0) | |
6881 | return r; | |
6882 | if (cct->_conf->client_permissions) { | |
6883 | int r = may_create(dir.get(), perms); | |
6884 | if (r < 0) | |
6885 | return r; | |
6886 | } | |
6887 | return _mknod(dir.get(), name.c_str(), mode, rdev, perms); | |
6888 | } | |
6889 | ||
6890 | // symlinks | |
6891 | ||
6892 | int Client::symlink(const char *target, const char *relpath, const UserPerm& perms) | |
6893 | { | |
11fdf7f2 TL |
6894 | std::lock_guard lock(client_lock); |
6895 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
6896 | tout(cct) << target << std::endl; |
6897 | tout(cct) << relpath << std::endl; | |
6898 | ||
181888fb FG |
6899 | if (unmounting) |
6900 | return -ENOTCONN; | |
6901 | ||
7c673cae FG |
6902 | if (std::string(relpath) == "/") |
6903 | return -EEXIST; | |
6904 | ||
6905 | filepath path(relpath); | |
6906 | string name = path.last_dentry(); | |
6907 | path.pop_dentry(); | |
6908 | InodeRef dir; | |
6909 | int r = path_walk(path, &dir, perms); | |
6910 | if (r < 0) | |
6911 | return r; | |
6912 | if (cct->_conf->client_permissions) { | |
6913 | int r = may_create(dir.get(), perms); | |
6914 | if (r < 0) | |
6915 | return r; | |
6916 | } | |
6917 | return _symlink(dir.get(), name.c_str(), target, perms); | |
6918 | } | |
6919 | ||
6920 | int Client::readlink(const char *relpath, char *buf, loff_t size, const UserPerm& perms) | |
6921 | { | |
11fdf7f2 TL |
6922 | std::lock_guard lock(client_lock); |
6923 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
6924 | tout(cct) << relpath << std::endl; |
6925 | ||
181888fb FG |
6926 | if (unmounting) |
6927 | return -ENOTCONN; | |
6928 | ||
7c673cae FG |
6929 | filepath path(relpath); |
6930 | InodeRef in; | |
6931 | int r = path_walk(path, &in, perms, false); | |
6932 | if (r < 0) | |
6933 | return r; | |
6934 | ||
6935 | return _readlink(in.get(), buf, size); | |
6936 | } | |
6937 | ||
6938 | int Client::_readlink(Inode *in, char *buf, size_t size) | |
6939 | { | |
6940 | if (!in->is_symlink()) | |
6941 | return -EINVAL; | |
6942 | ||
6943 | // copy into buf (at most size bytes) | |
6944 | int r = in->symlink.length(); | |
6945 | if (r > (int)size) | |
6946 | r = size; | |
6947 | memcpy(buf, in->symlink.c_str(), r); | |
6948 | return r; | |
6949 | } | |
6950 | ||
6951 | ||
6952 | // inode stuff | |
6953 | ||
6954 | int Client::_getattr(Inode *in, int mask, const UserPerm& perms, bool force) | |
6955 | { | |
94b18763 | 6956 | bool yes = in->caps_issued_mask(mask, true); |
7c673cae | 6957 | |
11fdf7f2 | 6958 | ldout(cct, 10) << __func__ << " mask " << ccap_string(mask) << " issued=" << yes << dendl; |
7c673cae FG |
6959 | if (yes && !force) |
6960 | return 0; | |
6961 | ||
6962 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_GETATTR); | |
6963 | filepath path; | |
6964 | in->make_nosnap_relative_path(path); | |
6965 | req->set_filepath(path); | |
6966 | req->set_inode(in); | |
6967 | req->head.args.getattr.mask = mask; | |
6968 | ||
6969 | int res = make_request(req, perms); | |
11fdf7f2 | 6970 | ldout(cct, 10) << __func__ << " result=" << res << dendl; |
7c673cae FG |
6971 | return res; |
6972 | } | |
6973 | ||
6974 | int Client::_do_setattr(Inode *in, struct ceph_statx *stx, int mask, | |
6975 | const UserPerm& perms, InodeRef *inp) | |
6976 | { | |
6977 | int issued = in->caps_issued(); | |
6978 | ||
11fdf7f2 | 6979 | ldout(cct, 10) << __func__ << " mask " << mask << " issued " << |
7c673cae FG |
6980 | ccap_string(issued) << dendl; |
6981 | ||
6982 | if (in->snapid != CEPH_NOSNAP) { | |
6983 | return -EROFS; | |
6984 | } | |
6985 | if ((mask & CEPH_SETATTR_SIZE) && | |
6986 | (unsigned long)stx->stx_size > in->size && | |
6987 | is_quota_bytes_exceeded(in, (unsigned long)stx->stx_size - in->size, | |
6988 | perms)) { | |
6989 | return -EDQUOT; | |
6990 | } | |
6991 | ||
6992 | // make the change locally? | |
6993 | if ((in->cap_dirtier_uid >= 0 && perms.uid() != in->cap_dirtier_uid) || | |
6994 | (in->cap_dirtier_gid >= 0 && perms.gid() != in->cap_dirtier_gid)) { | |
6995 | ldout(cct, 10) << __func__ << " caller " << perms.uid() << ":" << perms.gid() | |
6996 | << " != cap dirtier " << in->cap_dirtier_uid << ":" | |
6997 | << in->cap_dirtier_gid << ", forcing sync setattr" | |
6998 | << dendl; | |
6999 | /* | |
7000 | * This works because we implicitly flush the caps as part of the | |
7001 | * request, so the cap update check will happen with the writeback | |
7002 | * cap context, and then the setattr check will happen with the | |
7003 | * caller's context. | |
7004 | * | |
7005 | * In reality this pattern is likely pretty rare (different users | |
7006 | * setattr'ing the same file). If that turns out not to be the | |
7007 | * case later, we can build a more complex pipelined cap writeback | |
7008 | * infrastructure... | |
7009 | */ | |
7010 | if (!mask) | |
7011 | mask |= CEPH_SETATTR_CTIME; | |
7012 | goto force_request; | |
7013 | } | |
7014 | ||
7015 | if (!mask) { | |
7016 | // caller just needs us to bump the ctime | |
7017 | in->ctime = ceph_clock_now(); | |
7018 | in->cap_dirtier_uid = perms.uid(); | |
7019 | in->cap_dirtier_gid = perms.gid(); | |
7020 | if (issued & CEPH_CAP_AUTH_EXCL) | |
28e407b8 | 7021 | in->mark_caps_dirty(CEPH_CAP_AUTH_EXCL); |
7c673cae | 7022 | else if (issued & CEPH_CAP_FILE_EXCL) |
28e407b8 | 7023 | in->mark_caps_dirty(CEPH_CAP_FILE_EXCL); |
7c673cae | 7024 | else if (issued & CEPH_CAP_XATTR_EXCL) |
28e407b8 | 7025 | in->mark_caps_dirty(CEPH_CAP_XATTR_EXCL); |
7c673cae FG |
7026 | else |
7027 | mask |= CEPH_SETATTR_CTIME; | |
7028 | } | |
7029 | ||
7030 | if (in->caps_issued_mask(CEPH_CAP_AUTH_EXCL)) { | |
7031 | bool kill_sguid = mask & (CEPH_SETATTR_SIZE|CEPH_SETATTR_KILL_SGUID); | |
7032 | ||
7033 | mask &= ~CEPH_SETATTR_KILL_SGUID; | |
7034 | ||
7035 | if (mask & CEPH_SETATTR_UID) { | |
7036 | in->ctime = ceph_clock_now(); | |
7037 | in->cap_dirtier_uid = perms.uid(); | |
7038 | in->cap_dirtier_gid = perms.gid(); | |
7039 | in->uid = stx->stx_uid; | |
28e407b8 | 7040 | in->mark_caps_dirty(CEPH_CAP_AUTH_EXCL); |
7c673cae FG |
7041 | mask &= ~CEPH_SETATTR_UID; |
7042 | kill_sguid = true; | |
7043 | ldout(cct,10) << "changing uid to " << stx->stx_uid << dendl; | |
7044 | } | |
7045 | if (mask & CEPH_SETATTR_GID) { | |
7046 | in->ctime = ceph_clock_now(); | |
7047 | in->cap_dirtier_uid = perms.uid(); | |
7048 | in->cap_dirtier_gid = perms.gid(); | |
7049 | in->gid = stx->stx_gid; | |
28e407b8 | 7050 | in->mark_caps_dirty(CEPH_CAP_AUTH_EXCL); |
7c673cae FG |
7051 | mask &= ~CEPH_SETATTR_GID; |
7052 | kill_sguid = true; | |
7053 | ldout(cct,10) << "changing gid to " << stx->stx_gid << dendl; | |
7054 | } | |
7055 | ||
7056 | if (mask & CEPH_SETATTR_MODE) { | |
7057 | in->ctime = ceph_clock_now(); | |
7058 | in->cap_dirtier_uid = perms.uid(); | |
7059 | in->cap_dirtier_gid = perms.gid(); | |
7060 | in->mode = (in->mode & ~07777) | (stx->stx_mode & 07777); | |
28e407b8 | 7061 | in->mark_caps_dirty(CEPH_CAP_AUTH_EXCL); |
7c673cae FG |
7062 | mask &= ~CEPH_SETATTR_MODE; |
7063 | ldout(cct,10) << "changing mode to " << stx->stx_mode << dendl; | |
181888fb | 7064 | } else if (kill_sguid && S_ISREG(in->mode) && (in->mode & (S_IXUSR|S_IXGRP|S_IXOTH))) { |
7c673cae | 7065 | /* Must squash the any setuid/setgid bits with an ownership change */ |
181888fb | 7066 | in->mode &= ~(S_ISUID|S_ISGID); |
28e407b8 | 7067 | in->mark_caps_dirty(CEPH_CAP_AUTH_EXCL); |
7c673cae FG |
7068 | } |
7069 | ||
7070 | if (mask & CEPH_SETATTR_BTIME) { | |
7071 | in->ctime = ceph_clock_now(); | |
7072 | in->cap_dirtier_uid = perms.uid(); | |
7073 | in->cap_dirtier_gid = perms.gid(); | |
7074 | in->btime = utime_t(stx->stx_btime); | |
28e407b8 | 7075 | in->mark_caps_dirty(CEPH_CAP_AUTH_EXCL); |
7c673cae FG |
7076 | mask &= ~CEPH_SETATTR_BTIME; |
7077 | ldout(cct,10) << "changing btime to " << in->btime << dendl; | |
7078 | } | |
7079 | } else if (mask & CEPH_SETATTR_SIZE) { | |
7080 | /* If we don't have Ax, then we must ask the server to clear them on truncate */ | |
7081 | mask |= CEPH_SETATTR_KILL_SGUID; | |
7082 | } | |
7083 | ||
7084 | if (in->caps_issued_mask(CEPH_CAP_FILE_EXCL)) { | |
7085 | if (mask & (CEPH_SETATTR_MTIME|CEPH_SETATTR_ATIME)) { | |
7086 | if (mask & CEPH_SETATTR_MTIME) | |
7087 | in->mtime = utime_t(stx->stx_mtime); | |
7088 | if (mask & CEPH_SETATTR_ATIME) | |
7089 | in->atime = utime_t(stx->stx_atime); | |
7090 | in->ctime = ceph_clock_now(); | |
7091 | in->cap_dirtier_uid = perms.uid(); | |
7092 | in->cap_dirtier_gid = perms.gid(); | |
7093 | in->time_warp_seq++; | |
28e407b8 | 7094 | in->mark_caps_dirty(CEPH_CAP_FILE_EXCL); |
7c673cae FG |
7095 | mask &= ~(CEPH_SETATTR_MTIME|CEPH_SETATTR_ATIME); |
7096 | } | |
7097 | } | |
7098 | if (!mask) { | |
7099 | in->change_attr++; | |
7100 | return 0; | |
7101 | } | |
7102 | ||
7103 | force_request: | |
7104 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_SETATTR); | |
7105 | ||
7106 | filepath path; | |
7107 | ||
7108 | in->make_nosnap_relative_path(path); | |
7109 | req->set_filepath(path); | |
7110 | req->set_inode(in); | |
7111 | ||
7112 | if (mask & CEPH_SETATTR_KILL_SGUID) { | |
7113 | req->inode_drop |= CEPH_CAP_AUTH_SHARED; | |
7114 | } | |
7115 | if (mask & CEPH_SETATTR_MODE) { | |
7116 | req->head.args.setattr.mode = stx->stx_mode; | |
7117 | req->inode_drop |= CEPH_CAP_AUTH_SHARED; | |
7118 | ldout(cct,10) << "changing mode to " << stx->stx_mode << dendl; | |
7119 | } | |
7120 | if (mask & CEPH_SETATTR_UID) { | |
7121 | req->head.args.setattr.uid = stx->stx_uid; | |
7122 | req->inode_drop |= CEPH_CAP_AUTH_SHARED; | |
7123 | ldout(cct,10) << "changing uid to " << stx->stx_uid << dendl; | |
7124 | } | |
7125 | if (mask & CEPH_SETATTR_GID) { | |
7126 | req->head.args.setattr.gid = stx->stx_gid; | |
7127 | req->inode_drop |= CEPH_CAP_AUTH_SHARED; | |
7128 | ldout(cct,10) << "changing gid to " << stx->stx_gid << dendl; | |
7129 | } | |
7130 | if (mask & CEPH_SETATTR_BTIME) { | |
7131 | req->head.args.setattr.btime = utime_t(stx->stx_btime); | |
7132 | req->inode_drop |= CEPH_CAP_AUTH_SHARED; | |
7133 | } | |
7134 | if (mask & CEPH_SETATTR_MTIME) { | |
7135 | req->head.args.setattr.mtime = utime_t(stx->stx_mtime); | |
94b18763 | 7136 | req->inode_drop |= CEPH_CAP_FILE_SHARED | CEPH_CAP_FILE_RD | |
7c673cae FG |
7137 | CEPH_CAP_FILE_WR; |
7138 | } | |
7139 | if (mask & CEPH_SETATTR_ATIME) { | |
7140 | req->head.args.setattr.atime = utime_t(stx->stx_atime); | |
7141 | req->inode_drop |= CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_RD | | |
7142 | CEPH_CAP_FILE_WR; | |
7143 | } | |
7144 | if (mask & CEPH_SETATTR_SIZE) { | |
7145 | if ((unsigned long)stx->stx_size < mdsmap->get_max_filesize()) { | |
7146 | req->head.args.setattr.size = stx->stx_size; | |
7147 | ldout(cct,10) << "changing size to " << stx->stx_size << dendl; | |
7148 | } else { //too big! | |
7149 | put_request(req); | |
7150 | ldout(cct,10) << "unable to set size to " << stx->stx_size << ". Too large!" << dendl; | |
7151 | return -EFBIG; | |
7152 | } | |
94b18763 | 7153 | req->inode_drop |= CEPH_CAP_FILE_SHARED | CEPH_CAP_FILE_RD | |
7c673cae FG |
7154 | CEPH_CAP_FILE_WR; |
7155 | } | |
7156 | req->head.args.setattr.mask = mask; | |
7157 | ||
7158 | req->regetattr_mask = mask; | |
7159 | ||
7160 | int res = make_request(req, perms, inp); | |
7161 | ldout(cct, 10) << "_setattr result=" << res << dendl; | |
7162 | return res; | |
7163 | } | |
7164 | ||
7165 | /* Note that we only care about attrs that setattr cares about */ | |
7166 | void Client::stat_to_statx(struct stat *st, struct ceph_statx *stx) | |
7167 | { | |
7168 | stx->stx_size = st->st_size; | |
7169 | stx->stx_mode = st->st_mode; | |
7170 | stx->stx_uid = st->st_uid; | |
7171 | stx->stx_gid = st->st_gid; | |
11fdf7f2 TL |
7172 | #ifdef __APPLE__ |
7173 | stx->stx_mtime = st->st_mtimespec; | |
7174 | stx->stx_atime = st->st_atimespec; | |
7175 | #else | |
7c673cae FG |
7176 | stx->stx_mtime = st->st_mtim; |
7177 | stx->stx_atime = st->st_atim; | |
11fdf7f2 | 7178 | #endif |
7c673cae FG |
7179 | } |
7180 | ||
7181 | int Client::__setattrx(Inode *in, struct ceph_statx *stx, int mask, | |
7182 | const UserPerm& perms, InodeRef *inp) | |
7183 | { | |
7184 | int ret = _do_setattr(in, stx, mask, perms, inp); | |
7185 | if (ret < 0) | |
7186 | return ret; | |
7187 | if (mask & CEPH_SETATTR_MODE) | |
7188 | ret = _posix_acl_chmod(in, stx->stx_mode, perms); | |
7189 | return ret; | |
7190 | } | |
7191 | ||
7192 | int Client::_setattrx(InodeRef &in, struct ceph_statx *stx, int mask, | |
7193 | const UserPerm& perms) | |
7194 | { | |
7195 | mask &= (CEPH_SETATTR_MODE | CEPH_SETATTR_UID | | |
7196 | CEPH_SETATTR_GID | CEPH_SETATTR_MTIME | | |
7197 | CEPH_SETATTR_ATIME | CEPH_SETATTR_SIZE | | |
7198 | CEPH_SETATTR_CTIME | CEPH_SETATTR_BTIME); | |
7199 | if (cct->_conf->client_permissions) { | |
7200 | int r = may_setattr(in.get(), stx, mask, perms); | |
7201 | if (r < 0) | |
7202 | return r; | |
7203 | } | |
7204 | return __setattrx(in.get(), stx, mask, perms); | |
7205 | } | |
7206 | ||
7207 | int Client::_setattr(InodeRef &in, struct stat *attr, int mask, | |
7208 | const UserPerm& perms) | |
7209 | { | |
7210 | struct ceph_statx stx; | |
7211 | ||
7212 | stat_to_statx(attr, &stx); | |
7213 | mask &= ~CEPH_SETATTR_BTIME; | |
181888fb FG |
7214 | |
7215 | if ((mask & CEPH_SETATTR_UID) && attr->st_uid == static_cast<uid_t>(-1)) { | |
7216 | mask &= ~CEPH_SETATTR_UID; | |
7217 | } | |
7218 | if ((mask & CEPH_SETATTR_GID) && attr->st_gid == static_cast<uid_t>(-1)) { | |
7219 | mask &= ~CEPH_SETATTR_GID; | |
7220 | } | |
7221 | ||
7c673cae FG |
7222 | return _setattrx(in, &stx, mask, perms); |
7223 | } | |
7224 | ||
7225 | int Client::setattr(const char *relpath, struct stat *attr, int mask, | |
7226 | const UserPerm& perms) | |
7227 | { | |
11fdf7f2 TL |
7228 | std::lock_guard lock(client_lock); |
7229 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7230 | tout(cct) << relpath << std::endl; |
7231 | tout(cct) << mask << std::endl; | |
7232 | ||
181888fb FG |
7233 | if (unmounting) |
7234 | return -ENOTCONN; | |
7235 | ||
7c673cae FG |
7236 | filepath path(relpath); |
7237 | InodeRef in; | |
7238 | int r = path_walk(path, &in, perms); | |
7239 | if (r < 0) | |
7240 | return r; | |
7241 | return _setattr(in, attr, mask, perms); | |
7242 | } | |
7243 | ||
7244 | int Client::setattrx(const char *relpath, struct ceph_statx *stx, int mask, | |
7245 | const UserPerm& perms, int flags) | |
7246 | { | |
11fdf7f2 TL |
7247 | std::lock_guard lock(client_lock); |
7248 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7249 | tout(cct) << relpath << std::endl; |
7250 | tout(cct) << mask << std::endl; | |
7251 | ||
181888fb FG |
7252 | if (unmounting) |
7253 | return -ENOTCONN; | |
7254 | ||
7c673cae FG |
7255 | filepath path(relpath); |
7256 | InodeRef in; | |
7257 | int r = path_walk(path, &in, perms, !(flags & AT_SYMLINK_NOFOLLOW)); | |
7258 | if (r < 0) | |
7259 | return r; | |
7260 | return _setattrx(in, stx, mask, perms); | |
7261 | } | |
7262 | ||
7263 | int Client::fsetattr(int fd, struct stat *attr, int mask, const UserPerm& perms) | |
7264 | { | |
11fdf7f2 TL |
7265 | std::lock_guard lock(client_lock); |
7266 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7267 | tout(cct) << fd << std::endl; |
7268 | tout(cct) << mask << std::endl; | |
7269 | ||
181888fb FG |
7270 | if (unmounting) |
7271 | return -ENOTCONN; | |
7272 | ||
7c673cae FG |
7273 | Fh *f = get_filehandle(fd); |
7274 | if (!f) | |
7275 | return -EBADF; | |
7276 | #if defined(__linux__) && defined(O_PATH) | |
7277 | if (f->flags & O_PATH) | |
7278 | return -EBADF; | |
7279 | #endif | |
7280 | return _setattr(f->inode, attr, mask, perms); | |
7281 | } | |
7282 | ||
7283 | int Client::fsetattrx(int fd, struct ceph_statx *stx, int mask, const UserPerm& perms) | |
7284 | { | |
11fdf7f2 TL |
7285 | std::lock_guard lock(client_lock); |
7286 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7287 | tout(cct) << fd << std::endl; |
7288 | tout(cct) << mask << std::endl; | |
7289 | ||
181888fb FG |
7290 | if (unmounting) |
7291 | return -ENOTCONN; | |
7292 | ||
7c673cae FG |
7293 | Fh *f = get_filehandle(fd); |
7294 | if (!f) | |
7295 | return -EBADF; | |
7296 | #if defined(__linux__) && defined(O_PATH) | |
7297 | if (f->flags & O_PATH) | |
7298 | return -EBADF; | |
7299 | #endif | |
7300 | return _setattrx(f->inode, stx, mask, perms); | |
7301 | } | |
7302 | ||
7303 | int Client::stat(const char *relpath, struct stat *stbuf, const UserPerm& perms, | |
7304 | frag_info_t *dirstat, int mask) | |
7305 | { | |
11fdf7f2 TL |
7306 | ldout(cct, 3) << __func__ << " enter (relpath " << relpath << " mask " << mask << ")" << dendl; |
7307 | std::lock_guard lock(client_lock); | |
7c673cae FG |
7308 | tout(cct) << "stat" << std::endl; |
7309 | tout(cct) << relpath << std::endl; | |
181888fb FG |
7310 | |
7311 | if (unmounting) | |
7312 | return -ENOTCONN; | |
7313 | ||
7c673cae FG |
7314 | filepath path(relpath); |
7315 | InodeRef in; | |
7316 | int r = path_walk(path, &in, perms, true, mask); | |
7317 | if (r < 0) | |
7318 | return r; | |
7319 | r = _getattr(in, mask, perms); | |
7320 | if (r < 0) { | |
11fdf7f2 | 7321 | ldout(cct, 3) << __func__ << " exit on error!" << dendl; |
7c673cae FG |
7322 | return r; |
7323 | } | |
7324 | fill_stat(in, stbuf, dirstat); | |
11fdf7f2 | 7325 | ldout(cct, 3) << __func__ << " exit (relpath " << relpath << " mask " << mask << ")" << dendl; |
7c673cae FG |
7326 | return r; |
7327 | } | |
7328 | ||
7329 | unsigned Client::statx_to_mask(unsigned int flags, unsigned int want) | |
7330 | { | |
7331 | unsigned mask = 0; | |
7332 | ||
7333 | /* if NO_ATTR_SYNC is set, then we don't need any -- just use what's in cache */ | |
7334 | if (flags & AT_NO_ATTR_SYNC) | |
7335 | goto out; | |
7336 | ||
7337 | /* Always set PIN to distinguish from AT_NO_ATTR_SYNC case */ | |
7338 | mask |= CEPH_CAP_PIN; | |
7339 | if (want & (CEPH_STATX_MODE|CEPH_STATX_UID|CEPH_STATX_GID|CEPH_STATX_BTIME|CEPH_STATX_CTIME|CEPH_STATX_VERSION)) | |
7340 | mask |= CEPH_CAP_AUTH_SHARED; | |
7341 | if (want & (CEPH_STATX_NLINK|CEPH_STATX_CTIME|CEPH_STATX_VERSION)) | |
7342 | mask |= CEPH_CAP_LINK_SHARED; | |
adb31ebb | 7343 | if (want & (CEPH_STATX_NLINK|CEPH_STATX_ATIME|CEPH_STATX_MTIME|CEPH_STATX_CTIME|CEPH_STATX_SIZE|CEPH_STATX_BLOCKS|CEPH_STATX_VERSION)) |
7c673cae FG |
7344 | mask |= CEPH_CAP_FILE_SHARED; |
7345 | if (want & (CEPH_STATX_VERSION|CEPH_STATX_CTIME)) | |
7346 | mask |= CEPH_CAP_XATTR_SHARED; | |
7347 | out: | |
7348 | return mask; | |
7349 | } | |
7350 | ||
7351 | int Client::statx(const char *relpath, struct ceph_statx *stx, | |
7352 | const UserPerm& perms, | |
7353 | unsigned int want, unsigned int flags) | |
7354 | { | |
11fdf7f2 TL |
7355 | ldout(cct, 3) << __func__ << " enter (relpath " << relpath << " want " << want << ")" << dendl; |
7356 | std::lock_guard lock(client_lock); | |
7c673cae FG |
7357 | tout(cct) << "statx" << std::endl; |
7358 | tout(cct) << relpath << std::endl; | |
181888fb FG |
7359 | |
7360 | if (unmounting) | |
7361 | return -ENOTCONN; | |
7362 | ||
7c673cae FG |
7363 | filepath path(relpath); |
7364 | InodeRef in; | |
7365 | ||
7366 | unsigned mask = statx_to_mask(flags, want); | |
7367 | ||
7368 | int r = path_walk(path, &in, perms, !(flags & AT_SYMLINK_NOFOLLOW), mask); | |
7369 | if (r < 0) | |
7370 | return r; | |
7371 | ||
7372 | r = _getattr(in, mask, perms); | |
7373 | if (r < 0) { | |
11fdf7f2 | 7374 | ldout(cct, 3) << __func__ << " exit on error!" << dendl; |
7c673cae FG |
7375 | return r; |
7376 | } | |
7377 | ||
7378 | fill_statx(in, mask, stx); | |
11fdf7f2 | 7379 | ldout(cct, 3) << __func__ << " exit (relpath " << relpath << " mask " << stx->stx_mask << ")" << dendl; |
7c673cae FG |
7380 | return r; |
7381 | } | |
7382 | ||
7383 | int Client::lstat(const char *relpath, struct stat *stbuf, | |
7384 | const UserPerm& perms, frag_info_t *dirstat, int mask) | |
7385 | { | |
11fdf7f2 TL |
7386 | ldout(cct, 3) << __func__ << " enter (relpath " << relpath << " mask " << mask << ")" << dendl; |
7387 | std::lock_guard lock(client_lock); | |
7388 | tout(cct) << __func__ << std::endl; | |
7c673cae | 7389 | tout(cct) << relpath << std::endl; |
181888fb FG |
7390 | |
7391 | if (unmounting) | |
7392 | return -ENOTCONN; | |
7393 | ||
7c673cae FG |
7394 | filepath path(relpath); |
7395 | InodeRef in; | |
7396 | // don't follow symlinks | |
7397 | int r = path_walk(path, &in, perms, false, mask); | |
7398 | if (r < 0) | |
7399 | return r; | |
7400 | r = _getattr(in, mask, perms); | |
7401 | if (r < 0) { | |
11fdf7f2 | 7402 | ldout(cct, 3) << __func__ << " exit on error!" << dendl; |
7c673cae FG |
7403 | return r; |
7404 | } | |
7405 | fill_stat(in, stbuf, dirstat); | |
11fdf7f2 | 7406 | ldout(cct, 3) << __func__ << " exit (relpath " << relpath << " mask " << mask << ")" << dendl; |
7c673cae FG |
7407 | return r; |
7408 | } | |
7409 | ||
7410 | int Client::fill_stat(Inode *in, struct stat *st, frag_info_t *dirstat, nest_info_t *rstat) | |
7411 | { | |
11fdf7f2 | 7412 | ldout(cct, 10) << __func__ << " on " << in->ino << " snap/dev" << in->snapid |
7c673cae FG |
7413 | << " mode 0" << oct << in->mode << dec |
7414 | << " mtime " << in->mtime << " ctime " << in->ctime << dendl; | |
7415 | memset(st, 0, sizeof(struct stat)); | |
7416 | if (use_faked_inos()) | |
7417 | st->st_ino = in->faked_ino; | |
7418 | else | |
7419 | st->st_ino = in->ino; | |
7420 | st->st_dev = in->snapid; | |
7421 | st->st_mode = in->mode; | |
7422 | st->st_rdev = in->rdev; | |
28e407b8 AA |
7423 | if (in->is_dir()) { |
7424 | switch (in->nlink) { | |
7425 | case 0: | |
7426 | st->st_nlink = 0; /* dir is unlinked */ | |
7427 | break; | |
7428 | case 1: | |
7429 | st->st_nlink = 1 /* parent dentry */ | |
7430 | + 1 /* <dir>/. */ | |
7431 | + in->dirstat.nsubdirs; /* include <dir>/. self-reference */ | |
7432 | break; | |
7433 | default: | |
7434 | ceph_abort(); | |
7435 | } | |
7436 | } else { | |
7437 | st->st_nlink = in->nlink; | |
7438 | } | |
7c673cae FG |
7439 | st->st_uid = in->uid; |
7440 | st->st_gid = in->gid; | |
7441 | if (in->ctime > in->mtime) { | |
7442 | stat_set_ctime_sec(st, in->ctime.sec()); | |
7443 | stat_set_ctime_nsec(st, in->ctime.nsec()); | |
7444 | } else { | |
7445 | stat_set_ctime_sec(st, in->mtime.sec()); | |
7446 | stat_set_ctime_nsec(st, in->mtime.nsec()); | |
7447 | } | |
7448 | stat_set_atime_sec(st, in->atime.sec()); | |
7449 | stat_set_atime_nsec(st, in->atime.nsec()); | |
7450 | stat_set_mtime_sec(st, in->mtime.sec()); | |
7451 | stat_set_mtime_nsec(st, in->mtime.nsec()); | |
7452 | if (in->is_dir()) { | |
7453 | if (cct->_conf->client_dirsize_rbytes) | |
7454 | st->st_size = in->rstat.rbytes; | |
7455 | else | |
7456 | st->st_size = in->dirstat.size(); | |
7457 | st->st_blocks = 1; | |
7458 | } else { | |
7459 | st->st_size = in->size; | |
7460 | st->st_blocks = (in->size + 511) >> 9; | |
7461 | } | |
11fdf7f2 | 7462 | st->st_blksize = std::max<uint32_t>(in->layout.stripe_unit, 4096); |
7c673cae FG |
7463 | |
7464 | if (dirstat) | |
7465 | *dirstat = in->dirstat; | |
7466 | if (rstat) | |
7467 | *rstat = in->rstat; | |
7468 | ||
7469 | return in->caps_issued(); | |
7470 | } | |
7471 | ||
7472 | void Client::fill_statx(Inode *in, unsigned int mask, struct ceph_statx *stx) | |
7473 | { | |
11fdf7f2 | 7474 | ldout(cct, 10) << __func__ << " on " << in->ino << " snap/dev" << in->snapid |
7c673cae FG |
7475 | << " mode 0" << oct << in->mode << dec |
7476 | << " mtime " << in->mtime << " ctime " << in->ctime << dendl; | |
7477 | memset(stx, 0, sizeof(struct ceph_statx)); | |
7478 | ||
7479 | /* | |
7480 | * If mask is 0, then the caller set AT_NO_ATTR_SYNC. Reset the mask | |
7481 | * so that all bits are set. | |
7482 | */ | |
7483 | if (!mask) | |
7484 | mask = ~0; | |
7485 | ||
7486 | /* These are always considered to be available */ | |
7487 | stx->stx_dev = in->snapid; | |
11fdf7f2 | 7488 | stx->stx_blksize = std::max<uint32_t>(in->layout.stripe_unit, 4096); |
7c673cae FG |
7489 | |
7490 | /* Type bits are always set, even when CEPH_STATX_MODE is not */ | |
7491 | stx->stx_mode = S_IFMT & in->mode; | |
7492 | stx->stx_ino = use_faked_inos() ? in->faked_ino : (ino_t)in->ino; | |
7493 | stx->stx_rdev = in->rdev; | |
7494 | stx->stx_mask |= (CEPH_STATX_INO|CEPH_STATX_RDEV); | |
7495 | ||
7496 | if (mask & CEPH_CAP_AUTH_SHARED) { | |
7497 | stx->stx_uid = in->uid; | |
7498 | stx->stx_gid = in->gid; | |
7499 | stx->stx_mode = in->mode; | |
7500 | in->btime.to_timespec(&stx->stx_btime); | |
7501 | stx->stx_mask |= (CEPH_STATX_MODE|CEPH_STATX_UID|CEPH_STATX_GID|CEPH_STATX_BTIME); | |
7502 | } | |
7503 | ||
7504 | if (mask & CEPH_CAP_LINK_SHARED) { | |
28e407b8 AA |
7505 | if (in->is_dir()) { |
7506 | switch (in->nlink) { | |
7507 | case 0: | |
7508 | stx->stx_nlink = 0; /* dir is unlinked */ | |
7509 | break; | |
7510 | case 1: | |
7511 | stx->stx_nlink = 1 /* parent dentry */ | |
7512 | + 1 /* <dir>/. */ | |
7513 | + in->dirstat.nsubdirs; /* include <dir>/. self-reference */ | |
7514 | break; | |
7515 | default: | |
7516 | ceph_abort(); | |
7517 | } | |
7518 | } else { | |
7519 | stx->stx_nlink = in->nlink; | |
7520 | } | |
7c673cae FG |
7521 | stx->stx_mask |= CEPH_STATX_NLINK; |
7522 | } | |
7523 | ||
7524 | if (mask & CEPH_CAP_FILE_SHARED) { | |
7525 | ||
7526 | in->atime.to_timespec(&stx->stx_atime); | |
7527 | in->mtime.to_timespec(&stx->stx_mtime); | |
7528 | ||
7529 | if (in->is_dir()) { | |
7530 | if (cct->_conf->client_dirsize_rbytes) | |
7531 | stx->stx_size = in->rstat.rbytes; | |
7532 | else | |
7533 | stx->stx_size = in->dirstat.size(); | |
7534 | stx->stx_blocks = 1; | |
7535 | } else { | |
7536 | stx->stx_size = in->size; | |
7537 | stx->stx_blocks = (in->size + 511) >> 9; | |
7538 | } | |
7539 | stx->stx_mask |= (CEPH_STATX_ATIME|CEPH_STATX_MTIME| | |
7540 | CEPH_STATX_SIZE|CEPH_STATX_BLOCKS); | |
7541 | } | |
7542 | ||
7543 | /* Change time and change_attr both require all shared caps to view */ | |
7544 | if ((mask & CEPH_STAT_CAP_INODE_ALL) == CEPH_STAT_CAP_INODE_ALL) { | |
7545 | stx->stx_version = in->change_attr; | |
7546 | if (in->ctime > in->mtime) | |
7547 | in->ctime.to_timespec(&stx->stx_ctime); | |
7548 | else | |
7549 | in->mtime.to_timespec(&stx->stx_ctime); | |
7550 | stx->stx_mask |= (CEPH_STATX_CTIME|CEPH_STATX_VERSION); | |
7551 | } | |
7552 | ||
7553 | } | |
7554 | ||
7555 | void Client::touch_dn(Dentry *dn) | |
7556 | { | |
7557 | lru.lru_touch(dn); | |
7558 | } | |
7559 | ||
7560 | int Client::chmod(const char *relpath, mode_t mode, const UserPerm& perms) | |
7561 | { | |
11fdf7f2 TL |
7562 | std::lock_guard lock(client_lock); |
7563 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7564 | tout(cct) << relpath << std::endl; |
7565 | tout(cct) << mode << std::endl; | |
181888fb FG |
7566 | |
7567 | if (unmounting) | |
7568 | return -ENOTCONN; | |
7569 | ||
7c673cae FG |
7570 | filepath path(relpath); |
7571 | InodeRef in; | |
7572 | int r = path_walk(path, &in, perms); | |
7573 | if (r < 0) | |
7574 | return r; | |
7575 | struct stat attr; | |
7576 | attr.st_mode = mode; | |
7577 | return _setattr(in, &attr, CEPH_SETATTR_MODE, perms); | |
7578 | } | |
7579 | ||
7580 | int Client::fchmod(int fd, mode_t mode, const UserPerm& perms) | |
7581 | { | |
11fdf7f2 TL |
7582 | std::lock_guard lock(client_lock); |
7583 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7584 | tout(cct) << fd << std::endl; |
7585 | tout(cct) << mode << std::endl; | |
181888fb FG |
7586 | |
7587 | if (unmounting) | |
7588 | return -ENOTCONN; | |
7589 | ||
7c673cae FG |
7590 | Fh *f = get_filehandle(fd); |
7591 | if (!f) | |
7592 | return -EBADF; | |
7593 | #if defined(__linux__) && defined(O_PATH) | |
7594 | if (f->flags & O_PATH) | |
7595 | return -EBADF; | |
7596 | #endif | |
7597 | struct stat attr; | |
7598 | attr.st_mode = mode; | |
7599 | return _setattr(f->inode, &attr, CEPH_SETATTR_MODE, perms); | |
7600 | } | |
7601 | ||
7602 | int Client::lchmod(const char *relpath, mode_t mode, const UserPerm& perms) | |
7603 | { | |
11fdf7f2 TL |
7604 | std::lock_guard lock(client_lock); |
7605 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7606 | tout(cct) << relpath << std::endl; |
7607 | tout(cct) << mode << std::endl; | |
181888fb FG |
7608 | |
7609 | if (unmounting) | |
7610 | return -ENOTCONN; | |
7611 | ||
7c673cae FG |
7612 | filepath path(relpath); |
7613 | InodeRef in; | |
7614 | // don't follow symlinks | |
7615 | int r = path_walk(path, &in, perms, false); | |
7616 | if (r < 0) | |
7617 | return r; | |
7618 | struct stat attr; | |
7619 | attr.st_mode = mode; | |
7620 | return _setattr(in, &attr, CEPH_SETATTR_MODE, perms); | |
7621 | } | |
7622 | ||
7623 | int Client::chown(const char *relpath, uid_t new_uid, gid_t new_gid, | |
7624 | const UserPerm& perms) | |
7625 | { | |
11fdf7f2 TL |
7626 | std::lock_guard lock(client_lock); |
7627 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7628 | tout(cct) << relpath << std::endl; |
7629 | tout(cct) << new_uid << std::endl; | |
7630 | tout(cct) << new_gid << std::endl; | |
181888fb FG |
7631 | |
7632 | if (unmounting) | |
7633 | return -ENOTCONN; | |
7634 | ||
7c673cae FG |
7635 | filepath path(relpath); |
7636 | InodeRef in; | |
7637 | int r = path_walk(path, &in, perms); | |
7638 | if (r < 0) | |
7639 | return r; | |
7640 | struct stat attr; | |
7641 | attr.st_uid = new_uid; | |
7642 | attr.st_gid = new_gid; | |
181888fb | 7643 | return _setattr(in, &attr, CEPH_SETATTR_UID|CEPH_SETATTR_GID, perms); |
7c673cae FG |
7644 | } |
7645 | ||
7646 | int Client::fchown(int fd, uid_t new_uid, gid_t new_gid, const UserPerm& perms) | |
7647 | { | |
11fdf7f2 TL |
7648 | std::lock_guard lock(client_lock); |
7649 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7650 | tout(cct) << fd << std::endl; |
7651 | tout(cct) << new_uid << std::endl; | |
7652 | tout(cct) << new_gid << std::endl; | |
181888fb FG |
7653 | |
7654 | if (unmounting) | |
7655 | return -ENOTCONN; | |
7656 | ||
7c673cae FG |
7657 | Fh *f = get_filehandle(fd); |
7658 | if (!f) | |
7659 | return -EBADF; | |
7660 | #if defined(__linux__) && defined(O_PATH) | |
7661 | if (f->flags & O_PATH) | |
7662 | return -EBADF; | |
7663 | #endif | |
7664 | struct stat attr; | |
7665 | attr.st_uid = new_uid; | |
7666 | attr.st_gid = new_gid; | |
7667 | int mask = 0; | |
7668 | if (new_uid != static_cast<uid_t>(-1)) mask |= CEPH_SETATTR_UID; | |
7669 | if (new_gid != static_cast<gid_t>(-1)) mask |= CEPH_SETATTR_GID; | |
7670 | return _setattr(f->inode, &attr, mask, perms); | |
7671 | } | |
7672 | ||
7673 | int Client::lchown(const char *relpath, uid_t new_uid, gid_t new_gid, | |
7674 | const UserPerm& perms) | |
7675 | { | |
11fdf7f2 TL |
7676 | std::lock_guard lock(client_lock); |
7677 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7678 | tout(cct) << relpath << std::endl; |
7679 | tout(cct) << new_uid << std::endl; | |
7680 | tout(cct) << new_gid << std::endl; | |
181888fb FG |
7681 | |
7682 | if (unmounting) | |
7683 | return -ENOTCONN; | |
7684 | ||
7c673cae FG |
7685 | filepath path(relpath); |
7686 | InodeRef in; | |
7687 | // don't follow symlinks | |
7688 | int r = path_walk(path, &in, perms, false); | |
7689 | if (r < 0) | |
7690 | return r; | |
7691 | struct stat attr; | |
7692 | attr.st_uid = new_uid; | |
7693 | attr.st_gid = new_gid; | |
7694 | int mask = 0; | |
7695 | if (new_uid != static_cast<uid_t>(-1)) mask |= CEPH_SETATTR_UID; | |
7696 | if (new_gid != static_cast<gid_t>(-1)) mask |= CEPH_SETATTR_GID; | |
7697 | return _setattr(in, &attr, mask, perms); | |
7698 | } | |
7699 | ||
11fdf7f2 TL |
7700 | static void attr_set_atime_and_mtime(struct stat *attr, |
7701 | const utime_t &atime, | |
7702 | const utime_t &mtime) | |
7703 | { | |
7704 | stat_set_atime_sec(attr, atime.tv.tv_sec); | |
7705 | stat_set_atime_nsec(attr, atime.tv.tv_nsec); | |
7706 | stat_set_mtime_sec(attr, mtime.tv.tv_sec); | |
7707 | stat_set_mtime_nsec(attr, mtime.tv.tv_nsec); | |
7708 | } | |
7709 | ||
7710 | // for [l]utime() invoke the timeval variant as the timespec | |
7711 | // variant are not yet implemented. for futime[s](), invoke | |
7712 | // the timespec variant. | |
7c673cae FG |
7713 | int Client::utime(const char *relpath, struct utimbuf *buf, |
7714 | const UserPerm& perms) | |
7715 | { | |
11fdf7f2 TL |
7716 | struct timeval tv[2]; |
7717 | tv[0].tv_sec = buf->actime; | |
7718 | tv[0].tv_usec = 0; | |
7719 | tv[1].tv_sec = buf->modtime; | |
7720 | tv[1].tv_usec = 0; | |
7721 | ||
7722 | return utimes(relpath, tv, perms); | |
7723 | } | |
7724 | ||
7725 | int Client::lutime(const char *relpath, struct utimbuf *buf, | |
7726 | const UserPerm& perms) | |
7727 | { | |
7728 | struct timeval tv[2]; | |
7729 | tv[0].tv_sec = buf->actime; | |
7730 | tv[0].tv_usec = 0; | |
7731 | tv[1].tv_sec = buf->modtime; | |
7732 | tv[1].tv_usec = 0; | |
7733 | ||
7734 | return lutimes(relpath, tv, perms); | |
7735 | } | |
7736 | ||
7737 | int Client::futime(int fd, struct utimbuf *buf, const UserPerm& perms) | |
7738 | { | |
7739 | struct timespec ts[2]; | |
7740 | ts[0].tv_sec = buf->actime; | |
7741 | ts[0].tv_nsec = 0; | |
7742 | ts[1].tv_sec = buf->modtime; | |
7743 | ts[1].tv_nsec = 0; | |
7744 | ||
7745 | return futimens(fd, ts, perms); | |
7746 | } | |
7747 | ||
7748 | int Client::utimes(const char *relpath, struct timeval times[2], | |
7749 | const UserPerm& perms) | |
7750 | { | |
7751 | std::lock_guard lock(client_lock); | |
7752 | tout(cct) << __func__ << std::endl; | |
7c673cae | 7753 | tout(cct) << relpath << std::endl; |
11fdf7f2 TL |
7754 | tout(cct) << "atime: " << times[0].tv_sec << "." << times[0].tv_usec |
7755 | << std::endl; | |
7756 | tout(cct) << "mtime: " << times[1].tv_sec << "." << times[1].tv_usec | |
7757 | << std::endl; | |
181888fb FG |
7758 | |
7759 | if (unmounting) | |
7760 | return -ENOTCONN; | |
7761 | ||
7c673cae FG |
7762 | filepath path(relpath); |
7763 | InodeRef in; | |
7764 | int r = path_walk(path, &in, perms); | |
7765 | if (r < 0) | |
7766 | return r; | |
7767 | struct stat attr; | |
11fdf7f2 TL |
7768 | utime_t atime(times[0]); |
7769 | utime_t mtime(times[1]); | |
7770 | ||
7771 | attr_set_atime_and_mtime(&attr, atime, mtime); | |
7c673cae FG |
7772 | return _setattr(in, &attr, CEPH_SETATTR_MTIME|CEPH_SETATTR_ATIME, perms); |
7773 | } | |
7774 | ||
11fdf7f2 TL |
7775 | int Client::lutimes(const char *relpath, struct timeval times[2], |
7776 | const UserPerm& perms) | |
7c673cae | 7777 | { |
11fdf7f2 TL |
7778 | std::lock_guard lock(client_lock); |
7779 | tout(cct) << __func__ << std::endl; | |
7c673cae | 7780 | tout(cct) << relpath << std::endl; |
11fdf7f2 TL |
7781 | tout(cct) << "atime: " << times[0].tv_sec << "." << times[0].tv_usec |
7782 | << std::endl; | |
7783 | tout(cct) << "mtime: " << times[1].tv_sec << "." << times[1].tv_usec | |
7784 | << std::endl; | |
181888fb FG |
7785 | |
7786 | if (unmounting) | |
7787 | return -ENOTCONN; | |
7788 | ||
7c673cae FG |
7789 | filepath path(relpath); |
7790 | InodeRef in; | |
7c673cae FG |
7791 | int r = path_walk(path, &in, perms, false); |
7792 | if (r < 0) | |
7793 | return r; | |
7794 | struct stat attr; | |
11fdf7f2 TL |
7795 | utime_t atime(times[0]); |
7796 | utime_t mtime(times[1]); | |
7797 | ||
7798 | attr_set_atime_and_mtime(&attr, atime, mtime); | |
7c673cae FG |
7799 | return _setattr(in, &attr, CEPH_SETATTR_MTIME|CEPH_SETATTR_ATIME, perms); |
7800 | } | |
7801 | ||
11fdf7f2 TL |
7802 | int Client::futimes(int fd, struct timeval times[2], const UserPerm& perms) |
7803 | { | |
7804 | struct timespec ts[2]; | |
7805 | ts[0].tv_sec = times[0].tv_sec; | |
7806 | ts[0].tv_nsec = times[0].tv_usec * 1000; | |
7807 | ts[1].tv_sec = times[1].tv_sec; | |
7808 | ts[1].tv_nsec = times[1].tv_usec * 1000; | |
7809 | ||
7810 | return futimens(fd, ts, perms); | |
7811 | } | |
7812 | ||
7813 | int Client::futimens(int fd, struct timespec times[2], const UserPerm& perms) | |
7814 | { | |
7815 | std::lock_guard lock(client_lock); | |
7816 | tout(cct) << __func__ << std::endl; | |
7817 | tout(cct) << fd << std::endl; | |
7818 | tout(cct) << "atime: " << times[0].tv_sec << "." << times[0].tv_nsec | |
7819 | << std::endl; | |
7820 | tout(cct) << "mtime: " << times[1].tv_sec << "." << times[1].tv_nsec | |
7821 | << std::endl; | |
7822 | ||
7823 | if (unmounting) | |
7824 | return -ENOTCONN; | |
7825 | ||
7826 | Fh *f = get_filehandle(fd); | |
7827 | if (!f) | |
7828 | return -EBADF; | |
7829 | #if defined(__linux__) && defined(O_PATH) | |
7830 | if (f->flags & O_PATH) | |
7831 | return -EBADF; | |
7832 | #endif | |
7833 | struct stat attr; | |
7834 | utime_t atime(times[0]); | |
7835 | utime_t mtime(times[1]); | |
7836 | ||
7837 | attr_set_atime_and_mtime(&attr, atime, mtime); | |
7838 | return _setattr(f->inode, &attr, CEPH_SETATTR_MTIME|CEPH_SETATTR_ATIME, perms); | |
7839 | } | |
7840 | ||
7c673cae FG |
7841 | int Client::flock(int fd, int operation, uint64_t owner) |
7842 | { | |
11fdf7f2 TL |
7843 | std::lock_guard lock(client_lock); |
7844 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7845 | tout(cct) << fd << std::endl; |
7846 | tout(cct) << operation << std::endl; | |
7847 | tout(cct) << owner << std::endl; | |
181888fb FG |
7848 | |
7849 | if (unmounting) | |
7850 | return -ENOTCONN; | |
7851 | ||
7c673cae FG |
7852 | Fh *f = get_filehandle(fd); |
7853 | if (!f) | |
7854 | return -EBADF; | |
7855 | ||
7856 | return _flock(f, operation, owner); | |
7857 | } | |
7858 | ||
7859 | int Client::opendir(const char *relpath, dir_result_t **dirpp, const UserPerm& perms) | |
7860 | { | |
11fdf7f2 TL |
7861 | std::lock_guard lock(client_lock); |
7862 | tout(cct) << __func__ << std::endl; | |
7c673cae | 7863 | tout(cct) << relpath << std::endl; |
181888fb FG |
7864 | |
7865 | if (unmounting) | |
7866 | return -ENOTCONN; | |
7867 | ||
7c673cae FG |
7868 | filepath path(relpath); |
7869 | InodeRef in; | |
7870 | int r = path_walk(path, &in, perms, true); | |
7871 | if (r < 0) | |
7872 | return r; | |
7873 | if (cct->_conf->client_permissions) { | |
7874 | int r = may_open(in.get(), O_RDONLY, perms); | |
7875 | if (r < 0) | |
7876 | return r; | |
7877 | } | |
7878 | r = _opendir(in.get(), dirpp, perms); | |
7879 | /* if ENOTDIR, dirpp will be an uninitialized point and it's very dangerous to access its value */ | |
7880 | if (r != -ENOTDIR) | |
7881 | tout(cct) << (unsigned long)*dirpp << std::endl; | |
7882 | return r; | |
7883 | } | |
7884 | ||
7885 | int Client::_opendir(Inode *in, dir_result_t **dirpp, const UserPerm& perms) | |
7886 | { | |
7887 | if (!in->is_dir()) | |
7888 | return -ENOTDIR; | |
7889 | *dirpp = new dir_result_t(in, perms); | |
7890 | opened_dirs.insert(*dirpp); | |
11fdf7f2 | 7891 | ldout(cct, 8) << __func__ << "(" << in->ino << ") = " << 0 << " (" << *dirpp << ")" << dendl; |
7c673cae FG |
7892 | return 0; |
7893 | } | |
7894 | ||
7895 | ||
7896 | int Client::closedir(dir_result_t *dir) | |
7897 | { | |
11fdf7f2 TL |
7898 | std::lock_guard lock(client_lock); |
7899 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
7900 | tout(cct) << (unsigned long)dir << std::endl; |
7901 | ||
11fdf7f2 | 7902 | ldout(cct, 3) << __func__ << "(" << dir << ") = 0" << dendl; |
7c673cae FG |
7903 | _closedir(dir); |
7904 | return 0; | |
7905 | } | |
7906 | ||
7907 | void Client::_closedir(dir_result_t *dirp) | |
7908 | { | |
11fdf7f2 | 7909 | ldout(cct, 10) << __func__ << "(" << dirp << ")" << dendl; |
7c673cae | 7910 | if (dirp->inode) { |
11fdf7f2 | 7911 | ldout(cct, 10) << __func__ << " detaching inode " << dirp->inode << dendl; |
7c673cae FG |
7912 | dirp->inode.reset(); |
7913 | } | |
7914 | _readdir_drop_dirp_buffer(dirp); | |
7915 | opened_dirs.erase(dirp); | |
7916 | delete dirp; | |
7917 | } | |
7918 | ||
7919 | void Client::rewinddir(dir_result_t *dirp) | |
7920 | { | |
11fdf7f2 TL |
7921 | std::lock_guard lock(client_lock); |
7922 | ldout(cct, 3) << __func__ << "(" << dirp << ")" << dendl; | |
181888fb FG |
7923 | |
7924 | if (unmounting) | |
7925 | return; | |
7926 | ||
7c673cae FG |
7927 | dir_result_t *d = static_cast<dir_result_t*>(dirp); |
7928 | _readdir_drop_dirp_buffer(d); | |
7929 | d->reset(); | |
7930 | } | |
7931 | ||
7932 | loff_t Client::telldir(dir_result_t *dirp) | |
7933 | { | |
7934 | dir_result_t *d = static_cast<dir_result_t*>(dirp); | |
11fdf7f2 | 7935 | ldout(cct, 3) << __func__ << "(" << dirp << ") = " << d->offset << dendl; |
7c673cae FG |
7936 | return d->offset; |
7937 | } | |
7938 | ||
7939 | void Client::seekdir(dir_result_t *dirp, loff_t offset) | |
7940 | { | |
11fdf7f2 | 7941 | std::lock_guard lock(client_lock); |
7c673cae | 7942 | |
11fdf7f2 | 7943 | ldout(cct, 3) << __func__ << "(" << dirp << ", " << offset << ")" << dendl; |
7c673cae | 7944 | |
181888fb FG |
7945 | if (unmounting) |
7946 | return; | |
7947 | ||
7c673cae FG |
7948 | if (offset == dirp->offset) |
7949 | return; | |
7950 | ||
7951 | if (offset > dirp->offset) | |
7952 | dirp->release_count = 0; // bump if we do a forward seek | |
7953 | else | |
7954 | dirp->ordered_count = 0; // disable filling readdir cache | |
7955 | ||
7956 | if (dirp->hash_order()) { | |
7957 | if (dirp->offset > offset) { | |
7958 | _readdir_drop_dirp_buffer(dirp); | |
7959 | dirp->reset(); | |
7960 | } | |
7961 | } else { | |
7962 | if (offset == 0 || | |
7963 | dirp->buffer_frag != frag_t(dir_result_t::fpos_high(offset)) || | |
7964 | dirp->offset_low() > dir_result_t::fpos_low(offset)) { | |
7965 | _readdir_drop_dirp_buffer(dirp); | |
7966 | dirp->reset(); | |
7967 | } | |
7968 | } | |
7969 | ||
7970 | dirp->offset = offset; | |
7971 | } | |
7972 | ||
7973 | ||
7974 | //struct dirent { | |
7975 | // ino_t d_ino; /* inode number */ | |
7976 | // off_t d_off; /* offset to the next dirent */ | |
7977 | // unsigned short d_reclen; /* length of this record */ | |
7978 | // unsigned char d_type; /* type of file */ | |
7979 | // char d_name[256]; /* filename */ | |
7980 | //}; | |
7981 | void Client::fill_dirent(struct dirent *de, const char *name, int type, uint64_t ino, loff_t next_off) | |
7982 | { | |
7983 | strncpy(de->d_name, name, 255); | |
7984 | de->d_name[255] = '\0'; | |
7985 | #ifndef __CYGWIN__ | |
7986 | de->d_ino = ino; | |
11fdf7f2 | 7987 | #if !defined(__APPLE__) && !defined(__FreeBSD__) |
7c673cae FG |
7988 | de->d_off = next_off; |
7989 | #endif | |
7990 | de->d_reclen = 1; | |
7991 | de->d_type = IFTODT(type); | |
11fdf7f2 | 7992 | ldout(cct, 10) << __func__ << " '" << de->d_name << "' -> " << inodeno_t(de->d_ino) |
7c673cae FG |
7993 | << " type " << (int)de->d_type << " w/ next_off " << hex << next_off << dec << dendl; |
7994 | #endif | |
7995 | } | |
7996 | ||
7997 | void Client::_readdir_next_frag(dir_result_t *dirp) | |
7998 | { | |
7999 | frag_t fg = dirp->buffer_frag; | |
8000 | ||
8001 | if (fg.is_rightmost()) { | |
11fdf7f2 | 8002 | ldout(cct, 10) << __func__ << " advance from " << fg << " to END" << dendl; |
7c673cae FG |
8003 | dirp->set_end(); |
8004 | return; | |
8005 | } | |
8006 | ||
8007 | // advance | |
8008 | fg = fg.next(); | |
11fdf7f2 | 8009 | ldout(cct, 10) << __func__ << " advance from " << dirp->buffer_frag << " to " << fg << dendl; |
7c673cae FG |
8010 | |
8011 | if (dirp->hash_order()) { | |
8012 | // keep last_name | |
8013 | int64_t new_offset = dir_result_t::make_fpos(fg.value(), 2, true); | |
8014 | if (dirp->offset < new_offset) // don't decrease offset | |
8015 | dirp->offset = new_offset; | |
8016 | } else { | |
8017 | dirp->last_name.clear(); | |
8018 | dirp->offset = dir_result_t::make_fpos(fg, 2, false); | |
8019 | _readdir_rechoose_frag(dirp); | |
8020 | } | |
8021 | } | |
8022 | ||
8023 | void Client::_readdir_rechoose_frag(dir_result_t *dirp) | |
8024 | { | |
11fdf7f2 | 8025 | ceph_assert(dirp->inode); |
7c673cae FG |
8026 | |
8027 | if (dirp->hash_order()) | |
8028 | return; | |
8029 | ||
8030 | frag_t cur = frag_t(dirp->offset_high()); | |
8031 | frag_t fg = dirp->inode->dirfragtree[cur.value()]; | |
8032 | if (fg != cur) { | |
11fdf7f2 | 8033 | ldout(cct, 10) << __func__ << " frag " << cur << " maps to " << fg << dendl; |
7c673cae FG |
8034 | dirp->offset = dir_result_t::make_fpos(fg, 2, false); |
8035 | dirp->last_name.clear(); | |
8036 | dirp->next_offset = 2; | |
8037 | } | |
8038 | } | |
8039 | ||
8040 | void Client::_readdir_drop_dirp_buffer(dir_result_t *dirp) | |
8041 | { | |
11fdf7f2 | 8042 | ldout(cct, 10) << __func__ << " " << dirp << dendl; |
7c673cae FG |
8043 | dirp->buffer.clear(); |
8044 | } | |
8045 | ||
8046 | int Client::_readdir_get_frag(dir_result_t *dirp) | |
8047 | { | |
11fdf7f2 TL |
8048 | ceph_assert(dirp); |
8049 | ceph_assert(dirp->inode); | |
7c673cae FG |
8050 | |
8051 | // get the current frag. | |
8052 | frag_t fg; | |
8053 | if (dirp->hash_order()) | |
8054 | fg = dirp->inode->dirfragtree[dirp->offset_high()]; | |
8055 | else | |
8056 | fg = frag_t(dirp->offset_high()); | |
8057 | ||
11fdf7f2 | 8058 | ldout(cct, 10) << __func__ << " " << dirp << " on " << dirp->inode->ino << " fg " << fg |
7c673cae FG |
8059 | << " offset " << hex << dirp->offset << dec << dendl; |
8060 | ||
8061 | int op = CEPH_MDS_OP_READDIR; | |
8062 | if (dirp->inode && dirp->inode->snapid == CEPH_SNAPDIR) | |
8063 | op = CEPH_MDS_OP_LSSNAP; | |
8064 | ||
8065 | InodeRef& diri = dirp->inode; | |
8066 | ||
8067 | MetaRequest *req = new MetaRequest(op); | |
8068 | filepath path; | |
8069 | diri->make_nosnap_relative_path(path); | |
8070 | req->set_filepath(path); | |
8071 | req->set_inode(diri.get()); | |
8072 | req->head.args.readdir.frag = fg; | |
8073 | req->head.args.readdir.flags = CEPH_READDIR_REPLY_BITFLAGS; | |
8074 | if (dirp->last_name.length()) { | |
94b18763 | 8075 | req->path2.set_path(dirp->last_name); |
7c673cae FG |
8076 | } else if (dirp->hash_order()) { |
8077 | req->head.args.readdir.offset_hash = dirp->offset_high(); | |
8078 | } | |
8079 | req->dirp = dirp; | |
8080 | ||
8081 | bufferlist dirbl; | |
8082 | int res = make_request(req, dirp->perms, NULL, NULL, -1, &dirbl); | |
8083 | ||
8084 | if (res == -EAGAIN) { | |
11fdf7f2 | 8085 | ldout(cct, 10) << __func__ << " got EAGAIN, retrying" << dendl; |
7c673cae FG |
8086 | _readdir_rechoose_frag(dirp); |
8087 | return _readdir_get_frag(dirp); | |
8088 | } | |
8089 | ||
8090 | if (res == 0) { | |
11fdf7f2 | 8091 | ldout(cct, 10) << __func__ << " " << dirp << " got frag " << dirp->buffer_frag |
7c673cae FG |
8092 | << " size " << dirp->buffer.size() << dendl; |
8093 | } else { | |
11fdf7f2 | 8094 | ldout(cct, 10) << __func__ << " got error " << res << ", setting end flag" << dendl; |
7c673cae FG |
8095 | dirp->set_end(); |
8096 | } | |
8097 | ||
8098 | return res; | |
8099 | } | |
8100 | ||
8101 | struct dentry_off_lt { | |
8102 | bool operator()(const Dentry* dn, int64_t off) const { | |
8103 | return dir_result_t::fpos_cmp(dn->offset, off) < 0; | |
8104 | } | |
8105 | }; | |
8106 | ||
8107 | int Client::_readdir_cache_cb(dir_result_t *dirp, add_dirent_cb_t cb, void *p, | |
8108 | int caps, bool getref) | |
8109 | { | |
9f95a23c | 8110 | ceph_assert(ceph_mutex_is_locked(client_lock)); |
11fdf7f2 | 8111 | ldout(cct, 10) << __func__ << " " << dirp << " on " << dirp->inode->ino |
7c673cae FG |
8112 | << " last_name " << dirp->last_name << " offset " << hex << dirp->offset << dec |
8113 | << dendl; | |
8114 | Dir *dir = dirp->inode->dir; | |
8115 | ||
8116 | if (!dir) { | |
8117 | ldout(cct, 10) << " dir is empty" << dendl; | |
8118 | dirp->set_end(); | |
8119 | return 0; | |
8120 | } | |
8121 | ||
8122 | vector<Dentry*>::iterator pd = std::lower_bound(dir->readdir_cache.begin(), | |
8123 | dir->readdir_cache.end(), | |
8124 | dirp->offset, dentry_off_lt()); | |
8125 | ||
8126 | string dn_name; | |
8127 | while (true) { | |
adb31ebb | 8128 | int mask = caps; |
7c673cae FG |
8129 | if (!dirp->inode->is_complete_and_ordered()) |
8130 | return -EAGAIN; | |
8131 | if (pd == dir->readdir_cache.end()) | |
8132 | break; | |
8133 | Dentry *dn = *pd; | |
8134 | if (dn->inode == NULL) { | |
8135 | ldout(cct, 15) << " skipping null '" << dn->name << "'" << dendl; | |
8136 | ++pd; | |
8137 | continue; | |
8138 | } | |
8139 | if (dn->cap_shared_gen != dir->parent_inode->shared_gen) { | |
8140 | ldout(cct, 15) << " skipping mismatch shared gen '" << dn->name << "'" << dendl; | |
8141 | ++pd; | |
8142 | continue; | |
8143 | } | |
8144 | ||
92f5a8d4 | 8145 | int idx = pd - dir->readdir_cache.begin(); |
adb31ebb TL |
8146 | if (dn->inode->is_dir()) { |
8147 | mask |= CEPH_STAT_RSTAT; | |
8148 | } | |
8149 | int r = _getattr(dn->inode, mask, dirp->perms); | |
7c673cae FG |
8150 | if (r < 0) |
8151 | return r; | |
92f5a8d4 TL |
8152 | |
8153 | // the content of readdir_cache may change after _getattr(), so pd may be invalid iterator | |
8154 | pd = dir->readdir_cache.begin() + idx; | |
8155 | if (pd >= dir->readdir_cache.end() || *pd != dn) | |
8156 | return -EAGAIN; | |
7c673cae FG |
8157 | |
8158 | struct ceph_statx stx; | |
8159 | struct dirent de; | |
8160 | fill_statx(dn->inode, caps, &stx); | |
8161 | ||
8162 | uint64_t next_off = dn->offset + 1; | |
eafe8130 | 8163 | fill_dirent(&de, dn->name.c_str(), stx.stx_mode, stx.stx_ino, next_off); |
7c673cae FG |
8164 | ++pd; |
8165 | if (pd == dir->readdir_cache.end()) | |
8166 | next_off = dir_result_t::END; | |
8167 | ||
8168 | Inode *in = NULL; | |
7c673cae FG |
8169 | if (getref) { |
8170 | in = dn->inode.get(); | |
8171 | _ll_get(in); | |
8172 | } | |
8173 | ||
8174 | dn_name = dn->name; // fill in name while we have lock | |
8175 | ||
9f95a23c | 8176 | client_lock.unlock(); |
7c673cae | 8177 | r = cb(p, &de, &stx, next_off, in); // _next_ offset |
9f95a23c | 8178 | client_lock.lock(); |
7c673cae FG |
8179 | ldout(cct, 15) << " de " << de.d_name << " off " << hex << dn->offset << dec |
8180 | << " = " << r << dendl; | |
8181 | if (r < 0) { | |
8182 | return r; | |
8183 | } | |
8184 | ||
8185 | dirp->offset = next_off; | |
8186 | if (dirp->at_end()) | |
8187 | dirp->next_offset = 2; | |
8188 | else | |
8189 | dirp->next_offset = dirp->offset_low(); | |
8190 | dirp->last_name = dn_name; // we successfully returned this one; update! | |
28e407b8 | 8191 | dirp->release_count = 0; // last_name no longer match cache index |
7c673cae FG |
8192 | if (r > 0) |
8193 | return r; | |
8194 | } | |
8195 | ||
11fdf7f2 | 8196 | ldout(cct, 10) << __func__ << " " << dirp << " on " << dirp->inode->ino << " at end" << dendl; |
7c673cae FG |
8197 | dirp->set_end(); |
8198 | return 0; | |
8199 | } | |
8200 | ||
8201 | int Client::readdir_r_cb(dir_result_t *d, add_dirent_cb_t cb, void *p, | |
8202 | unsigned want, unsigned flags, bool getref) | |
8203 | { | |
8204 | int caps = statx_to_mask(flags, want); | |
8205 | ||
11fdf7f2 | 8206 | std::lock_guard lock(client_lock); |
7c673cae | 8207 | |
181888fb FG |
8208 | if (unmounting) |
8209 | return -ENOTCONN; | |
8210 | ||
7c673cae FG |
8211 | dir_result_t *dirp = static_cast<dir_result_t*>(d); |
8212 | ||
11fdf7f2 | 8213 | ldout(cct, 10) << __func__ << " " << *dirp->inode << " offset " << hex << dirp->offset |
7c673cae FG |
8214 | << dec << " at_end=" << dirp->at_end() |
8215 | << " hash_order=" << dirp->hash_order() << dendl; | |
8216 | ||
8217 | struct dirent de; | |
8218 | struct ceph_statx stx; | |
8219 | memset(&de, 0, sizeof(de)); | |
8220 | memset(&stx, 0, sizeof(stx)); | |
8221 | ||
8222 | InodeRef& diri = dirp->inode; | |
8223 | ||
8224 | if (dirp->at_end()) | |
8225 | return 0; | |
8226 | ||
8227 | if (dirp->offset == 0) { | |
8228 | ldout(cct, 15) << " including ." << dendl; | |
11fdf7f2 | 8229 | ceph_assert(diri->dentries.size() < 2); // can't have multiple hard-links to a dir |
7c673cae FG |
8230 | uint64_t next_off = 1; |
8231 | ||
8232 | int r; | |
adb31ebb | 8233 | r = _getattr(diri, caps | CEPH_STAT_RSTAT, dirp->perms); |
7c673cae FG |
8234 | if (r < 0) |
8235 | return r; | |
8236 | ||
8237 | fill_statx(diri, caps, &stx); | |
8238 | fill_dirent(&de, ".", S_IFDIR, stx.stx_ino, next_off); | |
8239 | ||
8240 | Inode *inode = NULL; | |
8241 | if (getref) { | |
8242 | inode = diri.get(); | |
8243 | _ll_get(inode); | |
8244 | } | |
8245 | ||
9f95a23c | 8246 | client_lock.unlock(); |
7c673cae | 8247 | r = cb(p, &de, &stx, next_off, inode); |
9f95a23c | 8248 | client_lock.lock(); |
7c673cae FG |
8249 | if (r < 0) |
8250 | return r; | |
8251 | ||
8252 | dirp->offset = next_off; | |
8253 | if (r > 0) | |
8254 | return r; | |
8255 | } | |
8256 | if (dirp->offset == 1) { | |
8257 | ldout(cct, 15) << " including .." << dendl; | |
8258 | uint64_t next_off = 2; | |
8259 | InodeRef in; | |
11fdf7f2 | 8260 | if (diri->dentries.empty()) |
7c673cae FG |
8261 | in = diri; |
8262 | else | |
94b18763 | 8263 | in = diri->get_first_parent()->dir->parent_inode; |
7c673cae FG |
8264 | |
8265 | int r; | |
adb31ebb | 8266 | r = _getattr(in, caps | CEPH_STAT_RSTAT, dirp->perms); |
7c673cae FG |
8267 | if (r < 0) |
8268 | return r; | |
8269 | ||
8270 | fill_statx(in, caps, &stx); | |
8271 | fill_dirent(&de, "..", S_IFDIR, stx.stx_ino, next_off); | |
8272 | ||
8273 | Inode *inode = NULL; | |
8274 | if (getref) { | |
8275 | inode = in.get(); | |
8276 | _ll_get(inode); | |
8277 | } | |
8278 | ||
9f95a23c | 8279 | client_lock.unlock(); |
7c673cae | 8280 | r = cb(p, &de, &stx, next_off, inode); |
9f95a23c | 8281 | client_lock.lock(); |
7c673cae FG |
8282 | if (r < 0) |
8283 | return r; | |
8284 | ||
8285 | dirp->offset = next_off; | |
8286 | if (r > 0) | |
8287 | return r; | |
8288 | } | |
8289 | ||
8290 | // can we read from our cache? | |
8291 | ldout(cct, 10) << "offset " << hex << dirp->offset << dec | |
8292 | << " snapid " << dirp->inode->snapid << " (complete && ordered) " | |
8293 | << dirp->inode->is_complete_and_ordered() | |
8294 | << " issued " << ccap_string(dirp->inode->caps_issued()) | |
8295 | << dendl; | |
8296 | if (dirp->inode->snapid != CEPH_SNAPDIR && | |
8297 | dirp->inode->is_complete_and_ordered() && | |
94b18763 | 8298 | dirp->inode->caps_issued_mask(CEPH_CAP_FILE_SHARED, true)) { |
7c673cae FG |
8299 | int err = _readdir_cache_cb(dirp, cb, p, caps, getref); |
8300 | if (err != -EAGAIN) | |
8301 | return err; | |
8302 | } | |
8303 | ||
8304 | while (1) { | |
8305 | if (dirp->at_end()) | |
8306 | return 0; | |
8307 | ||
8308 | bool check_caps = true; | |
8309 | if (!dirp->is_cached()) { | |
8310 | int r = _readdir_get_frag(dirp); | |
8311 | if (r) | |
8312 | return r; | |
8313 | // _readdir_get_frag () may updates dirp->offset if the replied dirfrag is | |
8314 | // different than the requested one. (our dirfragtree was outdated) | |
8315 | check_caps = false; | |
8316 | } | |
8317 | frag_t fg = dirp->buffer_frag; | |
8318 | ||
8319 | ldout(cct, 10) << "frag " << fg << " buffer size " << dirp->buffer.size() | |
8320 | << " offset " << hex << dirp->offset << dendl; | |
8321 | ||
8322 | for (auto it = std::lower_bound(dirp->buffer.begin(), dirp->buffer.end(), | |
8323 | dirp->offset, dir_result_t::dentry_off_lt()); | |
8324 | it != dirp->buffer.end(); | |
8325 | ++it) { | |
8326 | dir_result_t::dentry &entry = *it; | |
8327 | ||
8328 | uint64_t next_off = entry.offset + 1; | |
8329 | ||
8330 | int r; | |
8331 | if (check_caps) { | |
adb31ebb TL |
8332 | int mask = caps; |
8333 | if(entry.inode->is_dir()){ | |
8334 | mask |= CEPH_STAT_RSTAT; | |
8335 | } | |
8336 | r = _getattr(entry.inode, mask, dirp->perms); | |
7c673cae FG |
8337 | if (r < 0) |
8338 | return r; | |
8339 | } | |
8340 | ||
8341 | fill_statx(entry.inode, caps, &stx); | |
8342 | fill_dirent(&de, entry.name.c_str(), stx.stx_mode, stx.stx_ino, next_off); | |
8343 | ||
8344 | Inode *inode = NULL; | |
8345 | if (getref) { | |
8346 | inode = entry.inode.get(); | |
8347 | _ll_get(inode); | |
8348 | } | |
8349 | ||
9f95a23c | 8350 | client_lock.unlock(); |
7c673cae | 8351 | r = cb(p, &de, &stx, next_off, inode); // _next_ offset |
9f95a23c | 8352 | client_lock.lock(); |
7c673cae FG |
8353 | |
8354 | ldout(cct, 15) << " de " << de.d_name << " off " << hex << next_off - 1 << dec | |
8355 | << " = " << r << dendl; | |
8356 | if (r < 0) | |
8357 | return r; | |
8358 | ||
8359 | dirp->offset = next_off; | |
8360 | if (r > 0) | |
8361 | return r; | |
8362 | } | |
8363 | ||
8364 | if (dirp->next_offset > 2) { | |
8365 | ldout(cct, 10) << " fetching next chunk of this frag" << dendl; | |
8366 | _readdir_drop_dirp_buffer(dirp); | |
8367 | continue; // more! | |
8368 | } | |
8369 | ||
8370 | if (!fg.is_rightmost()) { | |
8371 | // next frag! | |
8372 | _readdir_next_frag(dirp); | |
8373 | continue; | |
8374 | } | |
8375 | ||
8376 | if (diri->shared_gen == dirp->start_shared_gen && | |
8377 | diri->dir_release_count == dirp->release_count) { | |
8378 | if (diri->dir_ordered_count == dirp->ordered_count) { | |
8379 | ldout(cct, 10) << " marking (I_COMPLETE|I_DIR_ORDERED) on " << *diri << dendl; | |
8380 | if (diri->dir) { | |
11fdf7f2 | 8381 | ceph_assert(diri->dir->readdir_cache.size() >= dirp->cache_index); |
7c673cae FG |
8382 | diri->dir->readdir_cache.resize(dirp->cache_index); |
8383 | } | |
8384 | diri->flags |= I_COMPLETE | I_DIR_ORDERED; | |
8385 | } else { | |
8386 | ldout(cct, 10) << " marking I_COMPLETE on " << *diri << dendl; | |
8387 | diri->flags |= I_COMPLETE; | |
8388 | } | |
8389 | } | |
8390 | ||
8391 | dirp->set_end(); | |
8392 | return 0; | |
8393 | } | |
8394 | ceph_abort(); | |
8395 | return 0; | |
8396 | } | |
8397 | ||
8398 | ||
8399 | int Client::readdir_r(dir_result_t *d, struct dirent *de) | |
8400 | { | |
8401 | return readdirplus_r(d, de, 0, 0, 0, NULL); | |
8402 | } | |
8403 | ||
8404 | /* | |
8405 | * readdirplus_r | |
8406 | * | |
8407 | * returns | |
8408 | * 1 if we got a dirent | |
8409 | * 0 for end of directory | |
8410 | * <0 on error | |
8411 | */ | |
8412 | ||
8413 | struct single_readdir { | |
8414 | struct dirent *de; | |
8415 | struct ceph_statx *stx; | |
8416 | Inode *inode; | |
8417 | bool full; | |
8418 | }; | |
8419 | ||
8420 | static int _readdir_single_dirent_cb(void *p, struct dirent *de, | |
8421 | struct ceph_statx *stx, off_t off, | |
8422 | Inode *in) | |
8423 | { | |
8424 | single_readdir *c = static_cast<single_readdir *>(p); | |
8425 | ||
8426 | if (c->full) | |
8427 | return -1; // already filled this dirent | |
8428 | ||
8429 | *c->de = *de; | |
8430 | if (c->stx) | |
8431 | *c->stx = *stx; | |
8432 | c->inode = in; | |
8433 | c->full = true; | |
8434 | return 1; | |
8435 | } | |
8436 | ||
8437 | struct dirent *Client::readdir(dir_result_t *d) | |
8438 | { | |
8439 | int ret; | |
f91f0fd5 | 8440 | auto& de = d->de; |
7c673cae FG |
8441 | single_readdir sr; |
8442 | sr.de = &de; | |
8443 | sr.stx = NULL; | |
8444 | sr.inode = NULL; | |
8445 | sr.full = false; | |
8446 | ||
8447 | // our callback fills the dirent and sets sr.full=true on first | |
8448 | // call, and returns -1 the second time around. | |
8449 | ret = readdir_r_cb(d, _readdir_single_dirent_cb, (void *)&sr); | |
8450 | if (ret < -1) { | |
8451 | errno = -ret; // this sucks. | |
8452 | return (dirent *) NULL; | |
8453 | } | |
8454 | if (sr.full) { | |
8455 | return &de; | |
8456 | } | |
8457 | return (dirent *) NULL; | |
8458 | } | |
8459 | ||
8460 | int Client::readdirplus_r(dir_result_t *d, struct dirent *de, | |
8461 | struct ceph_statx *stx, unsigned want, | |
8462 | unsigned flags, Inode **out) | |
8463 | { | |
8464 | single_readdir sr; | |
8465 | sr.de = de; | |
8466 | sr.stx = stx; | |
8467 | sr.inode = NULL; | |
8468 | sr.full = false; | |
8469 | ||
8470 | // our callback fills the dirent and sets sr.full=true on first | |
8471 | // call, and returns -1 the second time around. | |
8472 | int r = readdir_r_cb(d, _readdir_single_dirent_cb, (void *)&sr, want, flags, out); | |
8473 | if (r < -1) | |
8474 | return r; | |
8475 | if (out) | |
8476 | *out = sr.inode; | |
8477 | if (sr.full) | |
8478 | return 1; | |
8479 | return 0; | |
8480 | } | |
8481 | ||
8482 | ||
8483 | /* getdents */ | |
8484 | struct getdents_result { | |
8485 | char *buf; | |
8486 | int buflen; | |
8487 | int pos; | |
8488 | bool fullent; | |
8489 | }; | |
8490 | ||
8491 | static int _readdir_getdent_cb(void *p, struct dirent *de, | |
8492 | struct ceph_statx *stx, off_t off, Inode *in) | |
8493 | { | |
8494 | struct getdents_result *c = static_cast<getdents_result *>(p); | |
8495 | ||
8496 | int dlen; | |
8497 | if (c->fullent) | |
8498 | dlen = sizeof(*de); | |
8499 | else | |
8500 | dlen = strlen(de->d_name) + 1; | |
8501 | ||
8502 | if (c->pos + dlen > c->buflen) | |
8503 | return -1; // doesn't fit | |
8504 | ||
8505 | if (c->fullent) { | |
8506 | memcpy(c->buf + c->pos, de, sizeof(*de)); | |
8507 | } else { | |
8508 | memcpy(c->buf + c->pos, de->d_name, dlen); | |
8509 | } | |
8510 | c->pos += dlen; | |
8511 | return 0; | |
8512 | } | |
8513 | ||
8514 | int Client::_getdents(dir_result_t *dir, char *buf, int buflen, bool fullent) | |
8515 | { | |
8516 | getdents_result gr; | |
8517 | gr.buf = buf; | |
8518 | gr.buflen = buflen; | |
8519 | gr.fullent = fullent; | |
8520 | gr.pos = 0; | |
8521 | ||
8522 | int r = readdir_r_cb(dir, _readdir_getdent_cb, (void *)&gr); | |
8523 | ||
8524 | if (r < 0) { // some error | |
8525 | if (r == -1) { // buffer ran out of space | |
8526 | if (gr.pos) { // but we got some entries already! | |
8527 | return gr.pos; | |
8528 | } // or we need a larger buffer | |
8529 | return -ERANGE; | |
8530 | } else { // actual error, return it | |
8531 | return r; | |
8532 | } | |
8533 | } | |
8534 | return gr.pos; | |
8535 | } | |
8536 | ||
8537 | ||
8538 | /* getdir */ | |
8539 | struct getdir_result { | |
8540 | list<string> *contents; | |
8541 | int num; | |
8542 | }; | |
8543 | ||
8544 | static int _getdir_cb(void *p, struct dirent *de, struct ceph_statx *stx, off_t off, Inode *in) | |
8545 | { | |
8546 | getdir_result *r = static_cast<getdir_result *>(p); | |
8547 | ||
8548 | r->contents->push_back(de->d_name); | |
8549 | r->num++; | |
8550 | return 0; | |
8551 | } | |
8552 | ||
8553 | int Client::getdir(const char *relpath, list<string>& contents, | |
8554 | const UserPerm& perms) | |
8555 | { | |
8556 | ldout(cct, 3) << "getdir(" << relpath << ")" << dendl; | |
8557 | { | |
11fdf7f2 | 8558 | std::lock_guard lock(client_lock); |
7c673cae FG |
8559 | tout(cct) << "getdir" << std::endl; |
8560 | tout(cct) << relpath << std::endl; | |
8561 | } | |
8562 | ||
8563 | dir_result_t *d; | |
8564 | int r = opendir(relpath, &d, perms); | |
8565 | if (r < 0) | |
8566 | return r; | |
8567 | ||
8568 | getdir_result gr; | |
8569 | gr.contents = &contents; | |
8570 | gr.num = 0; | |
8571 | r = readdir_r_cb(d, _getdir_cb, (void *)&gr); | |
8572 | ||
8573 | closedir(d); | |
8574 | ||
8575 | if (r < 0) | |
8576 | return r; | |
8577 | return gr.num; | |
8578 | } | |
8579 | ||
8580 | ||
8581 | /****** file i/o **********/ | |
8582 | int Client::open(const char *relpath, int flags, const UserPerm& perms, | |
8583 | mode_t mode, int stripe_unit, int stripe_count, | |
8584 | int object_size, const char *data_pool) | |
8585 | { | |
f91f0fd5 TL |
8586 | int cflags = ceph_flags_sys2wire(flags); |
8587 | ||
8588 | ldout(cct, 3) << "open enter(" << relpath << ", " << cflags << "," << mode << ")" << dendl; | |
11fdf7f2 | 8589 | std::lock_guard lock(client_lock); |
7c673cae FG |
8590 | tout(cct) << "open" << std::endl; |
8591 | tout(cct) << relpath << std::endl; | |
f91f0fd5 | 8592 | tout(cct) << cflags << std::endl; |
7c673cae | 8593 | |
181888fb FG |
8594 | if (unmounting) |
8595 | return -ENOTCONN; | |
8596 | ||
7c673cae FG |
8597 | Fh *fh = NULL; |
8598 | ||
8599 | #if defined(__linux__) && defined(O_PATH) | |
8600 | /* When the O_PATH is being specified, others flags than O_DIRECTORY | |
8601 | * and O_NOFOLLOW are ignored. Please refer do_entry_open() function | |
8602 | * in kernel (fs/open.c). */ | |
8603 | if (flags & O_PATH) | |
8604 | flags &= O_DIRECTORY | O_NOFOLLOW | O_PATH; | |
8605 | #endif | |
8606 | ||
8607 | filepath path(relpath); | |
8608 | InodeRef in; | |
8609 | bool created = false; | |
8610 | /* O_CREATE with O_EXCL enforces O_NOFOLLOW. */ | |
8611 | bool followsym = !((flags & O_NOFOLLOW) || ((flags & O_CREAT) && (flags & O_EXCL))); | |
f91f0fd5 TL |
8612 | int mask = ceph_caps_for_mode(ceph_flags_to_mode(cflags)); |
8613 | ||
8614 | int r = path_walk(path, &in, perms, followsym, mask); | |
7c673cae FG |
8615 | |
8616 | if (r == 0 && (flags & O_CREAT) && (flags & O_EXCL)) | |
8617 | return -EEXIST; | |
8618 | ||
8619 | #if defined(__linux__) && defined(O_PATH) | |
8620 | if (r == 0 && in->is_symlink() && (flags & O_NOFOLLOW) && !(flags & O_PATH)) | |
8621 | #else | |
8622 | if (r == 0 && in->is_symlink() && (flags & O_NOFOLLOW)) | |
8623 | #endif | |
8624 | return -ELOOP; | |
8625 | ||
8626 | if (r == -ENOENT && (flags & O_CREAT)) { | |
8627 | filepath dirpath = path; | |
8628 | string dname = dirpath.last_dentry(); | |
8629 | dirpath.pop_dentry(); | |
8630 | InodeRef dir; | |
8631 | r = path_walk(dirpath, &dir, perms, true, | |
8632 | cct->_conf->client_permissions ? CEPH_CAP_AUTH_SHARED : 0); | |
8633 | if (r < 0) | |
8634 | goto out; | |
8635 | if (cct->_conf->client_permissions) { | |
8636 | r = may_create(dir.get(), perms); | |
8637 | if (r < 0) | |
8638 | goto out; | |
8639 | } | |
8640 | r = _create(dir.get(), dname.c_str(), flags, mode, &in, &fh, stripe_unit, | |
8641 | stripe_count, object_size, data_pool, &created, perms); | |
8642 | } | |
8643 | if (r < 0) | |
8644 | goto out; | |
8645 | ||
8646 | if (!created) { | |
8647 | // posix says we can only check permissions of existing files | |
8648 | if (cct->_conf->client_permissions) { | |
8649 | r = may_open(in.get(), flags, perms); | |
8650 | if (r < 0) | |
8651 | goto out; | |
8652 | } | |
8653 | } | |
8654 | ||
8655 | if (!fh) | |
8656 | r = _open(in.get(), flags, mode, &fh, perms); | |
8657 | if (r >= 0) { | |
8658 | // allocate a integer file descriptor | |
11fdf7f2 | 8659 | ceph_assert(fh); |
7c673cae | 8660 | r = get_fd(); |
11fdf7f2 | 8661 | ceph_assert(fd_map.count(r) == 0); |
7c673cae FG |
8662 | fd_map[r] = fh; |
8663 | } | |
8664 | ||
8665 | out: | |
8666 | tout(cct) << r << std::endl; | |
f91f0fd5 | 8667 | ldout(cct, 3) << "open exit(" << path << ", " << cflags << ") = " << r << dendl; |
7c673cae FG |
8668 | return r; |
8669 | } | |
8670 | ||
8671 | int Client::open(const char *relpath, int flags, const UserPerm& perms, mode_t mode) | |
8672 | { | |
8673 | /* Use default file striping parameters */ | |
8674 | return open(relpath, flags, perms, mode, 0, 0, 0, NULL); | |
8675 | } | |
8676 | ||
8677 | int Client::lookup_hash(inodeno_t ino, inodeno_t dirino, const char *name, | |
8678 | const UserPerm& perms) | |
8679 | { | |
11fdf7f2 TL |
8680 | std::lock_guard lock(client_lock); |
8681 | ldout(cct, 3) << __func__ << " enter(" << ino << ", #" << dirino << "/" << name << ")" << dendl; | |
7c673cae | 8682 | |
181888fb FG |
8683 | if (unmounting) |
8684 | return -ENOTCONN; | |
8685 | ||
7c673cae FG |
8686 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_LOOKUPHASH); |
8687 | filepath path(ino); | |
8688 | req->set_filepath(path); | |
8689 | ||
8690 | uint32_t h = ceph_str_hash(CEPH_STR_HASH_RJENKINS, name, strlen(name)); | |
8691 | char f[30]; | |
8692 | sprintf(f, "%u", h); | |
8693 | filepath path2(dirino); | |
8694 | path2.push_dentry(string(f)); | |
8695 | req->set_filepath2(path2); | |
8696 | ||
8697 | int r = make_request(req, perms, NULL, NULL, | |
8698 | rand() % mdsmap->get_num_in_mds()); | |
11fdf7f2 | 8699 | ldout(cct, 3) << __func__ << " exit(" << ino << ", #" << dirino << "/" << name << ") = " << r << dendl; |
7c673cae FG |
8700 | return r; |
8701 | } | |
8702 | ||
8703 | ||
8704 | /** | |
8705 | * Load inode into local cache. | |
8706 | * | |
8707 | * If inode pointer is non-NULL, and take a reference on | |
8708 | * the resulting Inode object in one operation, so that caller | |
8709 | * can safely assume inode will still be there after return. | |
8710 | */ | |
1adf2230 | 8711 | int Client::_lookup_ino(inodeno_t ino, const UserPerm& perms, Inode **inode) |
7c673cae | 8712 | { |
11fdf7f2 | 8713 | ldout(cct, 8) << __func__ << " enter(" << ino << ")" << dendl; |
7c673cae | 8714 | |
181888fb FG |
8715 | if (unmounting) |
8716 | return -ENOTCONN; | |
8717 | ||
7c673cae FG |
8718 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_LOOKUPINO); |
8719 | filepath path(ino); | |
8720 | req->set_filepath(path); | |
8721 | ||
8722 | int r = make_request(req, perms, NULL, NULL, rand() % mdsmap->get_num_in_mds()); | |
8723 | if (r == 0 && inode != NULL) { | |
8724 | vinodeno_t vino(ino, CEPH_NOSNAP); | |
8725 | unordered_map<vinodeno_t,Inode*>::iterator p = inode_map.find(vino); | |
11fdf7f2 | 8726 | ceph_assert(p != inode_map.end()); |
7c673cae FG |
8727 | *inode = p->second; |
8728 | _ll_get(*inode); | |
8729 | } | |
11fdf7f2 | 8730 | ldout(cct, 8) << __func__ << " exit(" << ino << ") = " << r << dendl; |
7c673cae FG |
8731 | return r; |
8732 | } | |
8733 | ||
1adf2230 AA |
8734 | int Client::lookup_ino(inodeno_t ino, const UserPerm& perms, Inode **inode) |
8735 | { | |
11fdf7f2 | 8736 | std::lock_guard lock(client_lock); |
1adf2230 AA |
8737 | return _lookup_ino(ino, perms, inode); |
8738 | } | |
7c673cae FG |
8739 | |
8740 | /** | |
8741 | * Find the parent inode of `ino` and insert it into | |
8742 | * our cache. Conditionally also set `parent` to a referenced | |
8743 | * Inode* if caller provides non-NULL value. | |
8744 | */ | |
1adf2230 | 8745 | int Client::_lookup_parent(Inode *ino, const UserPerm& perms, Inode **parent) |
7c673cae | 8746 | { |
11fdf7f2 | 8747 | ldout(cct, 8) << __func__ << " enter(" << ino->ino << ")" << dendl; |
7c673cae | 8748 | |
7c673cae FG |
8749 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_LOOKUPPARENT); |
8750 | filepath path(ino->ino); | |
8751 | req->set_filepath(path); | |
8752 | ||
8753 | InodeRef target; | |
8754 | int r = make_request(req, perms, &target, NULL, rand() % mdsmap->get_num_in_mds()); | |
8755 | // Give caller a reference to the parent ino if they provided a pointer. | |
8756 | if (parent != NULL) { | |
8757 | if (r == 0) { | |
8758 | *parent = target.get(); | |
8759 | _ll_get(*parent); | |
11fdf7f2 | 8760 | ldout(cct, 8) << __func__ << " found parent " << (*parent)->ino << dendl; |
7c673cae FG |
8761 | } else { |
8762 | *parent = NULL; | |
8763 | } | |
8764 | } | |
11fdf7f2 | 8765 | ldout(cct, 8) << __func__ << " exit(" << ino->ino << ") = " << r << dendl; |
7c673cae FG |
8766 | return r; |
8767 | } | |
8768 | ||
7c673cae FG |
8769 | /** |
8770 | * Populate the parent dentry for `ino`, provided it is | |
8771 | * a child of `parent`. | |
8772 | */ | |
1adf2230 | 8773 | int Client::_lookup_name(Inode *ino, Inode *parent, const UserPerm& perms) |
7c673cae | 8774 | { |
11fdf7f2 TL |
8775 | ceph_assert(parent->is_dir()); |
8776 | ldout(cct, 3) << __func__ << " enter(" << ino->ino << ")" << dendl; | |
7c673cae | 8777 | |
181888fb FG |
8778 | if (unmounting) |
8779 | return -ENOTCONN; | |
8780 | ||
7c673cae FG |
8781 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_LOOKUPNAME); |
8782 | req->set_filepath2(filepath(parent->ino)); | |
8783 | req->set_filepath(filepath(ino->ino)); | |
8784 | req->set_inode(ino); | |
8785 | ||
8786 | int r = make_request(req, perms, NULL, NULL, rand() % mdsmap->get_num_in_mds()); | |
11fdf7f2 | 8787 | ldout(cct, 3) << __func__ << " exit(" << ino->ino << ") = " << r << dendl; |
7c673cae FG |
8788 | return r; |
8789 | } | |
8790 | ||
1adf2230 AA |
8791 | int Client::lookup_name(Inode *ino, Inode *parent, const UserPerm& perms) |
8792 | { | |
11fdf7f2 | 8793 | std::lock_guard lock(client_lock); |
1adf2230 AA |
8794 | return _lookup_name(ino, parent, perms); |
8795 | } | |
7c673cae | 8796 | |
11fdf7f2 | 8797 | Fh *Client::_create_fh(Inode *in, int flags, int cmode, const UserPerm& perms) |
7c673cae | 8798 | { |
11fdf7f2 | 8799 | ceph_assert(in); |
f6b5b4d7 | 8800 | Fh *f = new Fh(in, flags, cmode, fd_gen, perms); |
7c673cae | 8801 | |
11fdf7f2 | 8802 | ldout(cct, 10) << __func__ << " " << in->ino << " mode " << cmode << dendl; |
7c673cae FG |
8803 | |
8804 | if (in->snapid != CEPH_NOSNAP) { | |
8805 | in->snap_cap_refs++; | |
8806 | ldout(cct, 5) << "open success, fh is " << f << " combined IMMUTABLE SNAP caps " | |
8807 | << ccap_string(in->caps_issued()) << dendl; | |
8808 | } | |
8809 | ||
11fdf7f2 | 8810 | const auto& conf = cct->_conf; |
7c673cae FG |
8811 | f->readahead.set_trigger_requests(1); |
8812 | f->readahead.set_min_readahead_size(conf->client_readahead_min); | |
8813 | uint64_t max_readahead = Readahead::NO_LIMIT; | |
8814 | if (conf->client_readahead_max_bytes) { | |
11fdf7f2 | 8815 | max_readahead = std::min(max_readahead, (uint64_t)conf->client_readahead_max_bytes); |
7c673cae FG |
8816 | } |
8817 | if (conf->client_readahead_max_periods) { | |
11fdf7f2 | 8818 | max_readahead = std::min(max_readahead, in->layout.get_period()*(uint64_t)conf->client_readahead_max_periods); |
7c673cae FG |
8819 | } |
8820 | f->readahead.set_max_readahead_size(max_readahead); | |
8821 | vector<uint64_t> alignments; | |
8822 | alignments.push_back(in->layout.get_period()); | |
8823 | alignments.push_back(in->layout.stripe_unit); | |
8824 | f->readahead.set_alignments(alignments); | |
8825 | ||
8826 | return f; | |
8827 | } | |
8828 | ||
8829 | int Client::_release_fh(Fh *f) | |
8830 | { | |
8831 | //ldout(cct, 3) << "op: client->close(open_files[ " << fh << " ]);" << dendl; | |
8832 | //ldout(cct, 3) << "op: open_files.erase( " << fh << " );" << dendl; | |
8833 | Inode *in = f->inode.get(); | |
11fdf7f2 | 8834 | ldout(cct, 8) << __func__ << " " << f << " mode " << f->mode << " on " << *in << dendl; |
7c673cae | 8835 | |
b32b8144 FG |
8836 | in->unset_deleg(f); |
8837 | ||
7c673cae FG |
8838 | if (in->snapid == CEPH_NOSNAP) { |
8839 | if (in->put_open_ref(f->mode)) { | |
8840 | _flush(in, new C_Client_FlushComplete(this, in)); | |
8841 | check_caps(in, 0); | |
8842 | } | |
8843 | } else { | |
11fdf7f2 | 8844 | ceph_assert(in->snap_cap_refs > 0); |
7c673cae FG |
8845 | in->snap_cap_refs--; |
8846 | } | |
8847 | ||
8848 | _release_filelocks(f); | |
8849 | ||
8850 | // Finally, read any async err (i.e. from flushes) | |
8851 | int err = f->take_async_err(); | |
8852 | if (err != 0) { | |
11fdf7f2 | 8853 | ldout(cct, 1) << __func__ << " " << f << " on inode " << *in << " caught async_err = " |
7c673cae FG |
8854 | << cpp_strerror(err) << dendl; |
8855 | } else { | |
11fdf7f2 | 8856 | ldout(cct, 10) << __func__ << " " << f << " on inode " << *in << " no async_err state" << dendl; |
7c673cae FG |
8857 | } |
8858 | ||
8859 | _put_fh(f); | |
8860 | ||
8861 | return err; | |
8862 | } | |
8863 | ||
8864 | void Client::_put_fh(Fh *f) | |
8865 | { | |
8866 | int left = f->put(); | |
8867 | if (!left) { | |
8868 | delete f; | |
8869 | } | |
8870 | } | |
8871 | ||
8872 | int Client::_open(Inode *in, int flags, mode_t mode, Fh **fhp, | |
8873 | const UserPerm& perms) | |
8874 | { | |
8875 | if (in->snapid != CEPH_NOSNAP && | |
8876 | (flags & (O_WRONLY | O_RDWR | O_CREAT | O_TRUNC | O_APPEND))) { | |
8877 | return -EROFS; | |
8878 | } | |
8879 | ||
8880 | // use normalized flags to generate cmode | |
11fdf7f2 TL |
8881 | int cflags = ceph_flags_sys2wire(flags); |
8882 | if (cct->_conf.get_val<bool>("client_force_lazyio")) | |
8883 | cflags |= CEPH_O_LAZY; | |
8884 | ||
8885 | int cmode = ceph_flags_to_mode(cflags); | |
7c673cae FG |
8886 | int want = ceph_caps_for_mode(cmode); |
8887 | int result = 0; | |
8888 | ||
8889 | in->get_open_ref(cmode); // make note of pending open, since it effects _wanted_ caps. | |
8890 | ||
b32b8144 | 8891 | if ((flags & O_TRUNC) == 0 && in->caps_issued_mask(want)) { |
7c673cae FG |
8892 | // update wanted? |
8893 | check_caps(in, CHECK_CAPS_NODELAY); | |
8894 | } else { | |
b32b8144 | 8895 | |
7c673cae FG |
8896 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_OPEN); |
8897 | filepath path; | |
8898 | in->make_nosnap_relative_path(path); | |
8899 | req->set_filepath(path); | |
11fdf7f2 | 8900 | req->head.args.open.flags = cflags & ~CEPH_O_CREAT; |
7c673cae FG |
8901 | req->head.args.open.mode = mode; |
8902 | req->head.args.open.pool = -1; | |
8903 | if (cct->_conf->client_debug_getattr_caps) | |
8904 | req->head.args.open.mask = DEBUG_GETATTR_CAPS; | |
8905 | else | |
8906 | req->head.args.open.mask = 0; | |
8907 | req->head.args.open.old_size = in->size; // for O_TRUNC | |
8908 | req->set_inode(in); | |
8909 | result = make_request(req, perms); | |
b32b8144 FG |
8910 | |
8911 | /* | |
8912 | * NFS expects that delegations will be broken on a conflicting open, | |
8913 | * not just when there is actual conflicting access to the file. SMB leases | |
8914 | * and oplocks also have similar semantics. | |
8915 | * | |
8916 | * Ensure that clients that have delegations enabled will wait on minimal | |
8917 | * caps during open, just to ensure that other clients holding delegations | |
8918 | * return theirs first. | |
8919 | */ | |
8920 | if (deleg_timeout && result == 0) { | |
8921 | int need = 0, have; | |
8922 | ||
8923 | if (cmode & CEPH_FILE_MODE_WR) | |
8924 | need |= CEPH_CAP_FILE_WR; | |
8925 | if (cmode & CEPH_FILE_MODE_RD) | |
8926 | need |= CEPH_CAP_FILE_RD; | |
8927 | ||
f6b5b4d7 TL |
8928 | Fh fh(in, flags, cmode, fd_gen, perms); |
8929 | result = get_caps(&fh, need, want, &have, -1); | |
b32b8144 | 8930 | if (result < 0) { |
1adf2230 | 8931 | ldout(cct, 8) << "Unable to get caps after open of inode " << *in << |
b32b8144 FG |
8932 | " . Denying open: " << |
8933 | cpp_strerror(result) << dendl; | |
b32b8144 FG |
8934 | } else { |
8935 | put_cap_ref(in, need); | |
8936 | } | |
8937 | } | |
7c673cae FG |
8938 | } |
8939 | ||
8940 | // success? | |
8941 | if (result >= 0) { | |
8942 | if (fhp) | |
8943 | *fhp = _create_fh(in, flags, cmode, perms); | |
8944 | } else { | |
8945 | in->put_open_ref(cmode); | |
8946 | } | |
8947 | ||
8948 | trim_cache(); | |
8949 | ||
8950 | return result; | |
8951 | } | |
8952 | ||
8953 | int Client::_renew_caps(Inode *in) | |
8954 | { | |
8955 | int wanted = in->caps_file_wanted(); | |
8956 | if (in->is_any_caps() && | |
8957 | ((wanted & CEPH_CAP_ANY_WR) == 0 || in->auth_cap)) { | |
8958 | check_caps(in, CHECK_CAPS_NODELAY); | |
8959 | return 0; | |
8960 | } | |
8961 | ||
8962 | int flags = 0; | |
8963 | if ((wanted & CEPH_CAP_FILE_RD) && (wanted & CEPH_CAP_FILE_WR)) | |
8964 | flags = O_RDWR; | |
8965 | else if (wanted & CEPH_CAP_FILE_RD) | |
8966 | flags = O_RDONLY; | |
8967 | else if (wanted & CEPH_CAP_FILE_WR) | |
8968 | flags = O_WRONLY; | |
8969 | ||
8970 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_OPEN); | |
8971 | filepath path; | |
8972 | in->make_nosnap_relative_path(path); | |
8973 | req->set_filepath(path); | |
8974 | req->head.args.open.flags = flags; | |
8975 | req->head.args.open.pool = -1; | |
8976 | if (cct->_conf->client_debug_getattr_caps) | |
8977 | req->head.args.open.mask = DEBUG_GETATTR_CAPS; | |
8978 | else | |
8979 | req->head.args.open.mask = 0; | |
8980 | req->set_inode(in); | |
8981 | ||
8982 | // duplicate in case Cap goes away; not sure if that race is a concern? | |
8983 | const UserPerm *pperm = in->get_best_perms(); | |
8984 | UserPerm perms; | |
8985 | if (pperm != NULL) | |
8986 | perms = *pperm; | |
8987 | int ret = make_request(req, perms); | |
8988 | return ret; | |
8989 | } | |
8990 | ||
8991 | int Client::close(int fd) | |
8992 | { | |
8993 | ldout(cct, 3) << "close enter(" << fd << ")" << dendl; | |
11fdf7f2 | 8994 | std::lock_guard lock(client_lock); |
7c673cae FG |
8995 | tout(cct) << "close" << std::endl; |
8996 | tout(cct) << fd << std::endl; | |
8997 | ||
181888fb FG |
8998 | if (unmounting) |
8999 | return -ENOTCONN; | |
9000 | ||
7c673cae FG |
9001 | Fh *fh = get_filehandle(fd); |
9002 | if (!fh) | |
9003 | return -EBADF; | |
9004 | int err = _release_fh(fh); | |
9005 | fd_map.erase(fd); | |
9006 | put_fd(fd); | |
9007 | ldout(cct, 3) << "close exit(" << fd << ")" << dendl; | |
9008 | return err; | |
9009 | } | |
9010 | ||
9011 | ||
9012 | // ------------ | |
9013 | // read, write | |
9014 | ||
9015 | loff_t Client::lseek(int fd, loff_t offset, int whence) | |
9016 | { | |
11fdf7f2 | 9017 | std::lock_guard lock(client_lock); |
7c673cae FG |
9018 | tout(cct) << "lseek" << std::endl; |
9019 | tout(cct) << fd << std::endl; | |
9020 | tout(cct) << offset << std::endl; | |
9021 | tout(cct) << whence << std::endl; | |
9022 | ||
181888fb FG |
9023 | if (unmounting) |
9024 | return -ENOTCONN; | |
9025 | ||
7c673cae FG |
9026 | Fh *f = get_filehandle(fd); |
9027 | if (!f) | |
9028 | return -EBADF; | |
9029 | #if defined(__linux__) && defined(O_PATH) | |
9030 | if (f->flags & O_PATH) | |
9031 | return -EBADF; | |
9032 | #endif | |
9033 | return _lseek(f, offset, whence); | |
9034 | } | |
9035 | ||
9036 | loff_t Client::_lseek(Fh *f, loff_t offset, int whence) | |
9037 | { | |
9038 | Inode *in = f->inode.get(); | |
9f95a23c | 9039 | bool whence_check = false; |
11fdf7f2 | 9040 | loff_t pos = -1; |
7c673cae | 9041 | |
9f95a23c TL |
9042 | switch (whence) { |
9043 | case SEEK_END: | |
9044 | whence_check = true; | |
9045 | break; | |
9046 | ||
9047 | #ifdef SEEK_DATA | |
9048 | case SEEK_DATA: | |
9049 | whence_check = true; | |
9050 | break; | |
9051 | #endif | |
9052 | ||
9053 | #ifdef SEEK_HOLE | |
9054 | case SEEK_HOLE: | |
9055 | whence_check = true; | |
9056 | break; | |
9057 | #endif | |
9058 | } | |
9059 | ||
9060 | if (whence_check) { | |
9061 | int r = _getattr(in, CEPH_STAT_CAP_SIZE, f->actor_perms); | |
9062 | if (r < 0) | |
92f5a8d4 | 9063 | return r; |
92f5a8d4 TL |
9064 | } |
9065 | ||
7c673cae FG |
9066 | switch (whence) { |
9067 | case SEEK_SET: | |
11fdf7f2 | 9068 | pos = offset; |
7c673cae FG |
9069 | break; |
9070 | ||
9071 | case SEEK_CUR: | |
92f5a8d4 | 9072 | pos = f->pos + offset; |
7c673cae FG |
9073 | break; |
9074 | ||
9075 | case SEEK_END: | |
11fdf7f2 | 9076 | pos = in->size + offset; |
7c673cae FG |
9077 | break; |
9078 | ||
9f95a23c | 9079 | #ifdef SEEK_DATA |
92f5a8d4 | 9080 | case SEEK_DATA: |
9f95a23c TL |
9081 | if (offset < 0 || static_cast<uint64_t>(offset) >= in->size) |
9082 | return -ENXIO; | |
92f5a8d4 TL |
9083 | pos = offset; |
9084 | break; | |
9f95a23c | 9085 | #endif |
92f5a8d4 | 9086 | |
9f95a23c | 9087 | #ifdef SEEK_HOLE |
92f5a8d4 | 9088 | case SEEK_HOLE: |
9f95a23c TL |
9089 | if (offset < 0 || static_cast<uint64_t>(offset) >= in->size) |
9090 | return -ENXIO; | |
9091 | pos = in->size; | |
92f5a8d4 | 9092 | break; |
9f95a23c | 9093 | #endif |
92f5a8d4 | 9094 | |
7c673cae | 9095 | default: |
92f5a8d4 TL |
9096 | ldout(cct, 1) << __func__ << ": invalid whence value " << whence << dendl; |
9097 | return -EINVAL; | |
7c673cae FG |
9098 | } |
9099 | ||
11fdf7f2 TL |
9100 | if (pos < 0) { |
9101 | return -EINVAL; | |
9102 | } else { | |
9103 | f->pos = pos; | |
9104 | } | |
9105 | ||
1adf2230 | 9106 | ldout(cct, 8) << "_lseek(" << f << ", " << offset << ", " << whence << ") = " << f->pos << dendl; |
7c673cae FG |
9107 | return f->pos; |
9108 | } | |
9109 | ||
9110 | ||
9111 | void Client::lock_fh_pos(Fh *f) | |
9112 | { | |
11fdf7f2 | 9113 | ldout(cct, 10) << __func__ << " " << f << dendl; |
7c673cae FG |
9114 | |
9115 | if (f->pos_locked || !f->pos_waiters.empty()) { | |
9f95a23c | 9116 | ceph::condition_variable cond; |
7c673cae | 9117 | f->pos_waiters.push_back(&cond); |
11fdf7f2 | 9118 | ldout(cct, 10) << __func__ << " BLOCKING on " << f << dendl; |
9f95a23c TL |
9119 | std::unique_lock l{client_lock, std::adopt_lock}; |
9120 | cond.wait(l, [f, me=&cond] { | |
9121 | return !f->pos_locked && f->pos_waiters.front() == me; | |
9122 | }); | |
9123 | l.release(); | |
11fdf7f2 TL |
9124 | ldout(cct, 10) << __func__ << " UNBLOCKING on " << f << dendl; |
9125 | ceph_assert(f->pos_waiters.front() == &cond); | |
7c673cae FG |
9126 | f->pos_waiters.pop_front(); |
9127 | } | |
9128 | ||
9129 | f->pos_locked = true; | |
9130 | } | |
9131 | ||
9132 | void Client::unlock_fh_pos(Fh *f) | |
9133 | { | |
7f7e6c64 TL |
9134 | ceph_assert(ceph_mutex_is_locked_by_me(client_lock)); |
9135 | ||
11fdf7f2 | 9136 | ldout(cct, 10) << __func__ << " " << f << dendl; |
7c673cae | 9137 | f->pos_locked = false; |
7f7e6c64 TL |
9138 | if (!f->pos_waiters.empty()) { |
9139 | // only wake up the oldest waiter | |
9140 | auto cond = f->pos_waiters.front(); | |
9141 | cond->notify_one(); | |
9142 | } | |
7c673cae FG |
9143 | } |
9144 | ||
9145 | int Client::uninline_data(Inode *in, Context *onfinish) | |
9146 | { | |
9147 | if (!in->inline_data.length()) { | |
9148 | onfinish->complete(0); | |
9149 | return 0; | |
9150 | } | |
9151 | ||
9152 | char oid_buf[32]; | |
9153 | snprintf(oid_buf, sizeof(oid_buf), "%llx.00000000", (long long unsigned)in->ino); | |
9154 | object_t oid = oid_buf; | |
9155 | ||
9156 | ObjectOperation create_ops; | |
9157 | create_ops.create(false); | |
9158 | ||
9159 | objecter->mutate(oid, | |
9160 | OSDMap::file_to_object_locator(in->layout), | |
9161 | create_ops, | |
9162 | in->snaprealm->get_snap_context(), | |
9163 | ceph::real_clock::now(), | |
9164 | 0, | |
9165 | NULL); | |
9166 | ||
9167 | bufferlist inline_version_bl; | |
11fdf7f2 | 9168 | encode(in->inline_version, inline_version_bl); |
7c673cae FG |
9169 | |
9170 | ObjectOperation uninline_ops; | |
9171 | uninline_ops.cmpxattr("inline_version", | |
9172 | CEPH_OSD_CMPXATTR_OP_GT, | |
9173 | CEPH_OSD_CMPXATTR_MODE_U64, | |
9174 | inline_version_bl); | |
9175 | bufferlist inline_data = in->inline_data; | |
9176 | uninline_ops.write(0, inline_data, in->truncate_size, in->truncate_seq); | |
9177 | uninline_ops.setxattr("inline_version", stringify(in->inline_version)); | |
9178 | ||
9179 | objecter->mutate(oid, | |
9180 | OSDMap::file_to_object_locator(in->layout), | |
9181 | uninline_ops, | |
9182 | in->snaprealm->get_snap_context(), | |
9183 | ceph::real_clock::now(), | |
9184 | 0, | |
9185 | onfinish); | |
9186 | ||
9187 | return 0; | |
9188 | } | |
9189 | ||
9190 | // | |
9191 | ||
9192 | // blocking osd interface | |
9193 | ||
9194 | int Client::read(int fd, char *buf, loff_t size, loff_t offset) | |
9195 | { | |
f6b5b4d7 | 9196 | std::unique_lock lock(client_lock); |
7c673cae FG |
9197 | tout(cct) << "read" << std::endl; |
9198 | tout(cct) << fd << std::endl; | |
9199 | tout(cct) << size << std::endl; | |
9200 | tout(cct) << offset << std::endl; | |
9201 | ||
181888fb FG |
9202 | if (unmounting) |
9203 | return -ENOTCONN; | |
9204 | ||
7c673cae FG |
9205 | Fh *f = get_filehandle(fd); |
9206 | if (!f) | |
9207 | return -EBADF; | |
9208 | #if defined(__linux__) && defined(O_PATH) | |
9209 | if (f->flags & O_PATH) | |
9210 | return -EBADF; | |
9211 | #endif | |
9212 | bufferlist bl; | |
11fdf7f2 TL |
9213 | /* We can't return bytes written larger than INT_MAX, clamp size to that */ |
9214 | size = std::min(size, (loff_t)INT_MAX); | |
7c673cae FG |
9215 | int r = _read(f, offset, size, &bl); |
9216 | ldout(cct, 3) << "read(" << fd << ", " << (void*)buf << ", " << size << ", " << offset << ") = " << r << dendl; | |
9217 | if (r >= 0) { | |
f6b5b4d7 | 9218 | lock.unlock(); |
9f95a23c | 9219 | bl.begin().copy(bl.length(), buf); |
7c673cae FG |
9220 | r = bl.length(); |
9221 | } | |
9222 | return r; | |
9223 | } | |
9224 | ||
9225 | int Client::preadv(int fd, const struct iovec *iov, int iovcnt, loff_t offset) | |
9226 | { | |
9227 | if (iovcnt < 0) | |
9228 | return -EINVAL; | |
9229 | return _preadv_pwritev(fd, iov, iovcnt, offset, false); | |
9230 | } | |
9231 | ||
11fdf7f2 | 9232 | int64_t Client::_read(Fh *f, int64_t offset, uint64_t size, bufferlist *bl) |
7c673cae | 9233 | { |
11fdf7f2 TL |
9234 | int want, have = 0; |
9235 | bool movepos = false; | |
9236 | std::unique_ptr<C_SaferCond> onuninline; | |
adb31ebb | 9237 | int64_t rc = 0; |
11fdf7f2 | 9238 | const auto& conf = cct->_conf; |
7c673cae | 9239 | Inode *in = f->inode.get(); |
11fdf7f2 TL |
9240 | utime_t lat; |
9241 | utime_t start = ceph_clock_now(); | |
7c673cae FG |
9242 | |
9243 | if ((f->mode & CEPH_FILE_MODE_RD) == 0) | |
9244 | return -EBADF; | |
9245 | //bool lazy = f->mode == CEPH_FILE_MODE_LAZY; | |
9246 | ||
7c673cae FG |
9247 | if (offset < 0) { |
9248 | lock_fh_pos(f); | |
9249 | offset = f->pos; | |
9250 | movepos = true; | |
9251 | } | |
9252 | loff_t start_pos = offset; | |
9253 | ||
9254 | if (in->inline_version == 0) { | |
adb31ebb | 9255 | auto r = _getattr(in, CEPH_STAT_CAP_INLINE_DATA, f->actor_perms, true); |
c07f9fc5 | 9256 | if (r < 0) { |
adb31ebb | 9257 | rc = r; |
11fdf7f2 | 9258 | goto done; |
c07f9fc5 | 9259 | } |
11fdf7f2 | 9260 | ceph_assert(in->inline_version > 0); |
7c673cae FG |
9261 | } |
9262 | ||
9263 | retry: | |
11fdf7f2 TL |
9264 | if (f->mode & CEPH_FILE_MODE_LAZY) |
9265 | want = CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO; | |
9266 | else | |
9267 | want = CEPH_CAP_FILE_CACHE; | |
adb31ebb TL |
9268 | { |
9269 | auto r = get_caps(f, CEPH_CAP_FILE_RD, want, &have, -1); | |
9270 | if (r < 0) { | |
9271 | rc = r; | |
9272 | goto done; | |
9273 | } | |
c07f9fc5 | 9274 | } |
7c673cae | 9275 | if (f->flags & O_DIRECT) |
11fdf7f2 | 9276 | have &= ~(CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO); |
7c673cae FG |
9277 | |
9278 | if (in->inline_version < CEPH_INLINE_NONE) { | |
9279 | if (!(have & CEPH_CAP_FILE_CACHE)) { | |
11fdf7f2 TL |
9280 | onuninline.reset(new C_SaferCond("Client::_read_uninline_data flock")); |
9281 | uninline_data(in, onuninline.get()); | |
7c673cae FG |
9282 | } else { |
9283 | uint32_t len = in->inline_data.length(); | |
7c673cae FG |
9284 | uint64_t endoff = offset + size; |
9285 | if (endoff > in->size) | |
9286 | endoff = in->size; | |
9287 | ||
9288 | if (offset < len) { | |
9289 | if (endoff <= len) { | |
9290 | bl->substr_of(in->inline_data, offset, endoff - offset); | |
9291 | } else { | |
9292 | bl->substr_of(in->inline_data, offset, len - offset); | |
9293 | bl->append_zero(endoff - len); | |
9294 | } | |
adb31ebb | 9295 | rc = endoff - offset; |
7c673cae FG |
9296 | } else if ((uint64_t)offset < endoff) { |
9297 | bl->append_zero(endoff - offset); | |
adb31ebb | 9298 | rc = endoff - offset; |
11fdf7f2 | 9299 | } else { |
adb31ebb | 9300 | rc = 0; |
7c673cae | 9301 | } |
7c673cae FG |
9302 | goto success; |
9303 | } | |
9304 | } | |
9305 | ||
9306 | if (!conf->client_debug_force_sync_read && | |
11fdf7f2 TL |
9307 | conf->client_oc && |
9308 | (have & (CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO))) { | |
7c673cae FG |
9309 | |
9310 | if (f->flags & O_RSYNC) { | |
9311 | _flush_range(in, offset, size); | |
9312 | } | |
adb31ebb TL |
9313 | rc = _read_async(f, offset, size, bl); |
9314 | if (rc < 0) | |
7c673cae FG |
9315 | goto done; |
9316 | } else { | |
9317 | if (f->flags & O_DIRECT) | |
9318 | _flush_range(in, offset, size); | |
9319 | ||
9320 | bool checkeof = false; | |
adb31ebb TL |
9321 | rc = _read_sync(f, offset, size, bl, &checkeof); |
9322 | if (rc < 0) | |
7c673cae FG |
9323 | goto done; |
9324 | if (checkeof) { | |
adb31ebb TL |
9325 | offset += rc; |
9326 | size -= rc; | |
7c673cae FG |
9327 | |
9328 | put_cap_ref(in, CEPH_CAP_FILE_RD); | |
9329 | have = 0; | |
9330 | // reverify size | |
adb31ebb TL |
9331 | { |
9332 | auto r = _getattr(in, CEPH_STAT_CAP_SIZE, f->actor_perms); | |
9333 | if (r < 0) { | |
9334 | rc = r; | |
9335 | goto done; | |
9336 | } | |
9337 | } | |
7c673cae FG |
9338 | |
9339 | // eof? short read. | |
9340 | if ((uint64_t)offset < in->size) | |
9341 | goto retry; | |
9342 | } | |
9343 | } | |
9344 | ||
9345 | success: | |
adb31ebb | 9346 | ceph_assert(rc >= 0); |
7c673cae FG |
9347 | if (movepos) { |
9348 | // adjust fd pos | |
adb31ebb | 9349 | f->pos = start_pos + rc; |
7c673cae | 9350 | } |
11fdf7f2 TL |
9351 | |
9352 | lat = ceph_clock_now(); | |
9353 | lat -= start; | |
9354 | logger->tinc(l_c_read, lat); | |
7c673cae FG |
9355 | |
9356 | done: | |
9357 | // done! | |
11fdf7f2 | 9358 | |
7c673cae | 9359 | if (onuninline) { |
9f95a23c | 9360 | client_lock.unlock(); |
11fdf7f2 | 9361 | int ret = onuninline->wait(); |
9f95a23c | 9362 | client_lock.lock(); |
11fdf7f2 | 9363 | if (ret >= 0 || ret == -ECANCELED) { |
7c673cae FG |
9364 | in->inline_data.clear(); |
9365 | in->inline_version = CEPH_INLINE_NONE; | |
28e407b8 | 9366 | in->mark_caps_dirty(CEPH_CAP_FILE_WR); |
7c673cae FG |
9367 | check_caps(in, 0); |
9368 | } else | |
adb31ebb | 9369 | rc = ret; |
7c673cae | 9370 | } |
11fdf7f2 | 9371 | if (have) { |
7c673cae | 9372 | put_cap_ref(in, CEPH_CAP_FILE_RD); |
11fdf7f2 TL |
9373 | } |
9374 | if (movepos) { | |
9375 | unlock_fh_pos(f); | |
9376 | } | |
adb31ebb | 9377 | return rc; |
7c673cae FG |
9378 | } |
9379 | ||
9380 | Client::C_Readahead::C_Readahead(Client *c, Fh *f) : | |
9381 | client(c), f(f) { | |
9382 | f->get(); | |
9383 | f->readahead.inc_pending(); | |
9384 | } | |
9385 | ||
9386 | Client::C_Readahead::~C_Readahead() { | |
9387 | f->readahead.dec_pending(); | |
9388 | client->_put_fh(f); | |
9389 | } | |
9390 | ||
9391 | void Client::C_Readahead::finish(int r) { | |
9392 | lgeneric_subdout(client->cct, client, 20) << "client." << client->get_nodeid() << " " << "C_Readahead on " << f->inode << dendl; | |
9393 | client->put_cap_ref(f->inode.get(), CEPH_CAP_FILE_RD | CEPH_CAP_FILE_CACHE); | |
9394 | } | |
9395 | ||
9396 | int Client::_read_async(Fh *f, uint64_t off, uint64_t len, bufferlist *bl) | |
9397 | { | |
11fdf7f2 | 9398 | const auto& conf = cct->_conf; |
7c673cae FG |
9399 | Inode *in = f->inode.get(); |
9400 | ||
11fdf7f2 | 9401 | ldout(cct, 10) << __func__ << " " << *in << " " << off << "~" << len << dendl; |
7c673cae FG |
9402 | |
9403 | // trim read based on file size? | |
9404 | if (off >= in->size) | |
9405 | return 0; | |
9406 | if (len == 0) | |
9407 | return 0; | |
9408 | if (off + len > in->size) { | |
9409 | len = in->size - off; | |
9410 | } | |
9411 | ||
9412 | ldout(cct, 10) << " min_bytes=" << f->readahead.get_min_readahead_size() | |
9413 | << " max_bytes=" << f->readahead.get_max_readahead_size() | |
9414 | << " max_periods=" << conf->client_readahead_max_periods << dendl; | |
9415 | ||
9416 | // read (and possibly block) | |
11fdf7f2 TL |
9417 | int r = 0; |
9418 | C_SaferCond onfinish("Client::_read_async flock"); | |
7c673cae | 9419 | r = objectcacher->file_read(&in->oset, &in->layout, in->snapid, |
11fdf7f2 | 9420 | off, len, bl, 0, &onfinish); |
7c673cae FG |
9421 | if (r == 0) { |
9422 | get_cap_ref(in, CEPH_CAP_FILE_CACHE); | |
9f95a23c | 9423 | client_lock.unlock(); |
11fdf7f2 | 9424 | r = onfinish.wait(); |
9f95a23c | 9425 | client_lock.lock(); |
7c673cae | 9426 | put_cap_ref(in, CEPH_CAP_FILE_CACHE); |
7c673cae FG |
9427 | } |
9428 | ||
9429 | if(f->readahead.get_min_readahead_size() > 0) { | |
9430 | pair<uint64_t, uint64_t> readahead_extent = f->readahead.update(off, len, in->size); | |
9431 | if (readahead_extent.second > 0) { | |
9432 | ldout(cct, 20) << "readahead " << readahead_extent.first << "~" << readahead_extent.second | |
9433 | << " (caller wants " << off << "~" << len << ")" << dendl; | |
9434 | Context *onfinish2 = new C_Readahead(this, f); | |
9435 | int r2 = objectcacher->file_read(&in->oset, &in->layout, in->snapid, | |
9436 | readahead_extent.first, readahead_extent.second, | |
9437 | NULL, 0, onfinish2); | |
9438 | if (r2 == 0) { | |
9439 | ldout(cct, 20) << "readahead initiated, c " << onfinish2 << dendl; | |
9440 | get_cap_ref(in, CEPH_CAP_FILE_RD | CEPH_CAP_FILE_CACHE); | |
9441 | } else { | |
9442 | ldout(cct, 20) << "readahead was no-op, already cached" << dendl; | |
9443 | delete onfinish2; | |
9444 | } | |
9445 | } | |
9446 | } | |
9447 | ||
9448 | return r; | |
9449 | } | |
9450 | ||
9451 | int Client::_read_sync(Fh *f, uint64_t off, uint64_t len, bufferlist *bl, | |
9452 | bool *checkeof) | |
9453 | { | |
9454 | Inode *in = f->inode.get(); | |
9455 | uint64_t pos = off; | |
9456 | int left = len; | |
9457 | int read = 0; | |
9458 | ||
11fdf7f2 | 9459 | ldout(cct, 10) << __func__ << " " << *in << " " << off << "~" << len << dendl; |
7c673cae | 9460 | |
7c673cae | 9461 | while (left > 0) { |
11fdf7f2 | 9462 | C_SaferCond onfinish("Client::_read_sync flock"); |
7c673cae FG |
9463 | bufferlist tbl; |
9464 | ||
9465 | int wanted = left; | |
9466 | filer->read_trunc(in->ino, &in->layout, in->snapid, | |
9467 | pos, left, &tbl, 0, | |
9468 | in->truncate_size, in->truncate_seq, | |
11fdf7f2 | 9469 | &onfinish); |
9f95a23c | 9470 | client_lock.unlock(); |
11fdf7f2 | 9471 | int r = onfinish.wait(); |
9f95a23c | 9472 | client_lock.lock(); |
7c673cae FG |
9473 | |
9474 | // if we get ENOENT from OSD, assume 0 bytes returned | |
9475 | if (r == -ENOENT) | |
9476 | r = 0; | |
9477 | if (r < 0) | |
9478 | return r; | |
9479 | if (tbl.length()) { | |
9480 | r = tbl.length(); | |
9481 | ||
9482 | read += r; | |
9483 | pos += r; | |
9484 | left -= r; | |
9485 | bl->claim_append(tbl); | |
9486 | } | |
9487 | // short read? | |
9488 | if (r >= 0 && r < wanted) { | |
9489 | if (pos < in->size) { | |
9490 | // zero up to known EOF | |
9491 | int64_t some = in->size - pos; | |
9492 | if (some > left) | |
9493 | some = left; | |
11fdf7f2 TL |
9494 | auto z = buffer::ptr_node::create(some); |
9495 | z->zero(); | |
9496 | bl->push_back(std::move(z)); | |
7c673cae FG |
9497 | read += some; |
9498 | pos += some; | |
9499 | left -= some; | |
9500 | if (left == 0) | |
9501 | return read; | |
9502 | } | |
9503 | ||
9504 | *checkeof = true; | |
9505 | return read; | |
9506 | } | |
9507 | } | |
9508 | return read; | |
9509 | } | |
9510 | ||
9511 | ||
9512 | /* | |
9513 | * we keep count of uncommitted sync writes on the inode, so that | |
9514 | * fsync can DDRT. | |
9515 | */ | |
9516 | void Client::_sync_write_commit(Inode *in) | |
9517 | { | |
11fdf7f2 | 9518 | ceph_assert(unsafe_sync_write > 0); |
7c673cae FG |
9519 | unsafe_sync_write--; |
9520 | ||
9521 | put_cap_ref(in, CEPH_CAP_FILE_BUFFER); | |
9522 | ||
11fdf7f2 | 9523 | ldout(cct, 15) << __func__ << " unsafe_sync_write = " << unsafe_sync_write << dendl; |
7c673cae | 9524 | if (unsafe_sync_write == 0 && unmounting) { |
11fdf7f2 | 9525 | ldout(cct, 10) << __func__ << " -- no more unsafe writes, unmount can proceed" << dendl; |
9f95a23c | 9526 | mount_cond.notify_all(); |
7c673cae FG |
9527 | } |
9528 | } | |
9529 | ||
9530 | int Client::write(int fd, const char *buf, loff_t size, loff_t offset) | |
9531 | { | |
11fdf7f2 | 9532 | std::lock_guard lock(client_lock); |
7c673cae FG |
9533 | tout(cct) << "write" << std::endl; |
9534 | tout(cct) << fd << std::endl; | |
9535 | tout(cct) << size << std::endl; | |
9536 | tout(cct) << offset << std::endl; | |
9537 | ||
181888fb FG |
9538 | if (unmounting) |
9539 | return -ENOTCONN; | |
9540 | ||
7c673cae FG |
9541 | Fh *fh = get_filehandle(fd); |
9542 | if (!fh) | |
9543 | return -EBADF; | |
9544 | #if defined(__linux__) && defined(O_PATH) | |
9545 | if (fh->flags & O_PATH) | |
9546 | return -EBADF; | |
9547 | #endif | |
11fdf7f2 TL |
9548 | /* We can't return bytes written larger than INT_MAX, clamp size to that */ |
9549 | size = std::min(size, (loff_t)INT_MAX); | |
9550 | int r = _write(fh, offset, size, buf, NULL, false); | |
7c673cae FG |
9551 | ldout(cct, 3) << "write(" << fd << ", \"...\", " << size << ", " << offset << ") = " << r << dendl; |
9552 | return r; | |
9553 | } | |
9554 | ||
9555 | int Client::pwritev(int fd, const struct iovec *iov, int iovcnt, int64_t offset) | |
9556 | { | |
9557 | if (iovcnt < 0) | |
9558 | return -EINVAL; | |
9559 | return _preadv_pwritev(fd, iov, iovcnt, offset, true); | |
9560 | } | |
9561 | ||
11fdf7f2 TL |
9562 | int64_t Client::_preadv_pwritev_locked(Fh *fh, const struct iovec *iov, |
9563 | unsigned iovcnt, int64_t offset, bool write, | |
9564 | bool clamp_to_int) | |
7c673cae | 9565 | { |
7c673cae FG |
9566 | #if defined(__linux__) && defined(O_PATH) |
9567 | if (fh->flags & O_PATH) | |
9568 | return -EBADF; | |
9569 | #endif | |
9570 | loff_t totallen = 0; | |
9571 | for (unsigned i = 0; i < iovcnt; i++) { | |
9572 | totallen += iov[i].iov_len; | |
9573 | } | |
11fdf7f2 TL |
9574 | |
9575 | /* | |
9576 | * Some of the API functions take 64-bit size values, but only return | |
9577 | * 32-bit signed integers. Clamp the I/O sizes in those functions so that | |
9578 | * we don't do I/Os larger than the values we can return. | |
9579 | */ | |
9580 | if (clamp_to_int) { | |
9581 | totallen = std::min(totallen, (loff_t)INT_MAX); | |
9582 | } | |
7c673cae | 9583 | if (write) { |
11fdf7f2 TL |
9584 | int64_t w = _write(fh, offset, totallen, NULL, iov, iovcnt); |
9585 | ldout(cct, 3) << "pwritev(" << fh << ", \"...\", " << totallen << ", " << offset << ") = " << w << dendl; | |
7c673cae FG |
9586 | return w; |
9587 | } else { | |
9588 | bufferlist bl; | |
11fdf7f2 TL |
9589 | int64_t r = _read(fh, offset, totallen, &bl); |
9590 | ldout(cct, 3) << "preadv(" << fh << ", " << offset << ") = " << r << dendl; | |
7c673cae FG |
9591 | if (r <= 0) |
9592 | return r; | |
9593 | ||
9f95a23c | 9594 | auto iter = bl.cbegin(); |
7c673cae FG |
9595 | for (unsigned j = 0, resid = r; j < iovcnt && resid > 0; j++) { |
9596 | /* | |
9597 | * This piece of code aims to handle the case that bufferlist does not have enough data | |
9598 | * to fill in the iov | |
9599 | */ | |
9f95a23c TL |
9600 | const auto round_size = std::min<unsigned>(resid, iov[j].iov_len); |
9601 | iter.copy(round_size, reinterpret_cast<char*>(iov[j].iov_base)); | |
9602 | resid -= round_size; | |
9603 | /* iter is self-updating */ | |
7c673cae FG |
9604 | } |
9605 | return r; | |
9606 | } | |
9607 | } | |
9608 | ||
11fdf7f2 TL |
9609 | int Client::_preadv_pwritev(int fd, const struct iovec *iov, unsigned iovcnt, int64_t offset, bool write) |
9610 | { | |
9611 | std::lock_guard lock(client_lock); | |
9612 | tout(cct) << fd << std::endl; | |
9613 | tout(cct) << offset << std::endl; | |
9614 | ||
9615 | if (unmounting) | |
9616 | return -ENOTCONN; | |
9617 | ||
9618 | Fh *fh = get_filehandle(fd); | |
9619 | if (!fh) | |
9620 | return -EBADF; | |
9621 | return _preadv_pwritev_locked(fh, iov, iovcnt, offset, write, true); | |
9622 | } | |
9623 | ||
9624 | int64_t Client::_write(Fh *f, int64_t offset, uint64_t size, const char *buf, | |
9625 | const struct iovec *iov, int iovcnt) | |
7c673cae | 9626 | { |
f64942e4 AA |
9627 | uint64_t fpos = 0; |
9628 | ||
7c673cae FG |
9629 | if ((uint64_t)(offset+size) > mdsmap->get_max_filesize()) //too large! |
9630 | return -EFBIG; | |
9631 | ||
9632 | //ldout(cct, 7) << "write fh " << fh << " size " << size << " offset " << offset << dendl; | |
9633 | Inode *in = f->inode.get(); | |
9634 | ||
9635 | if (objecter->osdmap_pool_full(in->layout.pool_id)) { | |
9636 | return -ENOSPC; | |
9637 | } | |
9638 | ||
11fdf7f2 | 9639 | ceph_assert(in->snapid == CEPH_NOSNAP); |
7c673cae FG |
9640 | |
9641 | // was Fh opened as writeable? | |
9642 | if ((f->mode & CEPH_FILE_MODE_WR) == 0) | |
9643 | return -EBADF; | |
9644 | ||
7c673cae FG |
9645 | // use/adjust fd pos? |
9646 | if (offset < 0) { | |
9647 | lock_fh_pos(f); | |
9648 | /* | |
9649 | * FIXME: this is racy in that we may block _after_ this point waiting for caps, and size may | |
9650 | * change out from under us. | |
9651 | */ | |
9652 | if (f->flags & O_APPEND) { | |
9f95a23c | 9653 | auto r = _lseek(f, 0, SEEK_END); |
7c673cae FG |
9654 | if (r < 0) { |
9655 | unlock_fh_pos(f); | |
9656 | return r; | |
9657 | } | |
9658 | } | |
9659 | offset = f->pos; | |
f64942e4 | 9660 | fpos = offset+size; |
7c673cae FG |
9661 | unlock_fh_pos(f); |
9662 | } | |
9663 | ||
11fdf7f2 TL |
9664 | // check quota |
9665 | uint64_t endoff = offset + size; | |
9666 | if (endoff > in->size && is_quota_bytes_exceeded(in, endoff - in->size, | |
9667 | f->actor_perms)) { | |
9668 | return -EDQUOT; | |
9669 | } | |
9670 | ||
7c673cae FG |
9671 | //bool lazy = f->mode == CEPH_FILE_MODE_LAZY; |
9672 | ||
9673 | ldout(cct, 10) << "cur file size is " << in->size << dendl; | |
9674 | ||
9675 | // time it. | |
9676 | utime_t start = ceph_clock_now(); | |
9677 | ||
9678 | if (in->inline_version == 0) { | |
9679 | int r = _getattr(in, CEPH_STAT_CAP_INLINE_DATA, f->actor_perms, true); | |
9680 | if (r < 0) | |
9681 | return r; | |
11fdf7f2 | 9682 | ceph_assert(in->inline_version > 0); |
7c673cae FG |
9683 | } |
9684 | ||
9685 | // copy into fresh buffer (since our write may be resub, async) | |
9686 | bufferlist bl; | |
9687 | if (buf) { | |
9688 | if (size > 0) | |
9689 | bl.append(buf, size); | |
9690 | } else if (iov){ | |
9691 | for (int i = 0; i < iovcnt; i++) { | |
9692 | if (iov[i].iov_len > 0) { | |
9693 | bl.append((const char *)iov[i].iov_base, iov[i].iov_len); | |
9694 | } | |
9695 | } | |
9696 | } | |
9697 | ||
9698 | utime_t lat; | |
9699 | uint64_t totalwritten; | |
11fdf7f2 TL |
9700 | int want, have; |
9701 | if (f->mode & CEPH_FILE_MODE_LAZY) | |
9702 | want = CEPH_CAP_FILE_BUFFER | CEPH_CAP_FILE_LAZYIO; | |
9703 | else | |
9704 | want = CEPH_CAP_FILE_BUFFER; | |
f6b5b4d7 | 9705 | int r = get_caps(f, CEPH_CAP_FILE_WR|CEPH_CAP_AUTH_SHARED, want, &have, endoff); |
7c673cae FG |
9706 | if (r < 0) |
9707 | return r; | |
9708 | ||
9709 | /* clear the setuid/setgid bits, if any */ | |
181888fb | 9710 | if (unlikely(in->mode & (S_ISUID|S_ISGID)) && size > 0) { |
7c673cae FG |
9711 | struct ceph_statx stx = { 0 }; |
9712 | ||
9713 | put_cap_ref(in, CEPH_CAP_AUTH_SHARED); | |
9714 | r = __setattrx(in, &stx, CEPH_SETATTR_KILL_SGUID, f->actor_perms); | |
9715 | if (r < 0) | |
9716 | return r; | |
9717 | } else { | |
9718 | put_cap_ref(in, CEPH_CAP_AUTH_SHARED); | |
9719 | } | |
9720 | ||
9721 | if (f->flags & O_DIRECT) | |
11fdf7f2 | 9722 | have &= ~(CEPH_CAP_FILE_BUFFER | CEPH_CAP_FILE_LAZYIO); |
7c673cae FG |
9723 | |
9724 | ldout(cct, 10) << " snaprealm " << *in->snaprealm << dendl; | |
9725 | ||
11fdf7f2 TL |
9726 | std::unique_ptr<C_SaferCond> onuninline = nullptr; |
9727 | ||
7c673cae FG |
9728 | if (in->inline_version < CEPH_INLINE_NONE) { |
9729 | if (endoff > cct->_conf->client_max_inline_size || | |
9730 | endoff > CEPH_INLINE_MAX_SIZE || | |
9731 | !(have & CEPH_CAP_FILE_BUFFER)) { | |
11fdf7f2 TL |
9732 | onuninline.reset(new C_SaferCond("Client::_write_uninline_data flock")); |
9733 | uninline_data(in, onuninline.get()); | |
7c673cae FG |
9734 | } else { |
9735 | get_cap_ref(in, CEPH_CAP_FILE_BUFFER); | |
9736 | ||
9737 | uint32_t len = in->inline_data.length(); | |
9738 | ||
9739 | if (endoff < len) | |
9f95a23c | 9740 | in->inline_data.begin(endoff).copy(len - endoff, bl); // XXX |
7c673cae FG |
9741 | |
9742 | if (offset < len) | |
9743 | in->inline_data.splice(offset, len - offset); | |
9744 | else if (offset > len) | |
9745 | in->inline_data.append_zero(offset - len); | |
9746 | ||
9747 | in->inline_data.append(bl); | |
9748 | in->inline_version++; | |
9749 | ||
9750 | put_cap_ref(in, CEPH_CAP_FILE_BUFFER); | |
9751 | ||
9752 | goto success; | |
9753 | } | |
9754 | } | |
9755 | ||
11fdf7f2 TL |
9756 | if (cct->_conf->client_oc && |
9757 | (have & (CEPH_CAP_FILE_BUFFER | CEPH_CAP_FILE_LAZYIO))) { | |
7c673cae FG |
9758 | // do buffered write |
9759 | if (!in->oset.dirty_or_tx) | |
9760 | get_cap_ref(in, CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_BUFFER); | |
9761 | ||
9762 | get_cap_ref(in, CEPH_CAP_FILE_BUFFER); | |
9763 | ||
9764 | // async, caching, non-blocking. | |
9765 | r = objectcacher->file_write(&in->oset, &in->layout, | |
9766 | in->snaprealm->get_snap_context(), | |
9767 | offset, size, bl, ceph::real_clock::now(), | |
9768 | 0); | |
9769 | put_cap_ref(in, CEPH_CAP_FILE_BUFFER); | |
9770 | ||
9771 | if (r < 0) | |
9772 | goto done; | |
9773 | ||
9774 | // flush cached write if O_SYNC is set on file fh | |
9775 | // O_DSYNC == O_SYNC on linux < 2.6.33 | |
9776 | // O_SYNC = __O_SYNC | O_DSYNC on linux >= 2.6.33 | |
9777 | if ((f->flags & O_SYNC) || (f->flags & O_DSYNC)) { | |
9778 | _flush_range(in, offset, size); | |
9779 | } | |
9780 | } else { | |
9781 | if (f->flags & O_DIRECT) | |
9782 | _flush_range(in, offset, size); | |
9783 | ||
9784 | // simple, non-atomic sync write | |
11fdf7f2 | 9785 | C_SaferCond onfinish("Client::_write flock"); |
7c673cae FG |
9786 | unsafe_sync_write++; |
9787 | get_cap_ref(in, CEPH_CAP_FILE_BUFFER); // released by onsafe callback | |
9788 | ||
9789 | filer->write_trunc(in->ino, &in->layout, in->snaprealm->get_snap_context(), | |
9790 | offset, size, bl, ceph::real_clock::now(), 0, | |
9791 | in->truncate_size, in->truncate_seq, | |
11fdf7f2 | 9792 | &onfinish); |
9f95a23c | 9793 | client_lock.unlock(); |
f6b5b4d7 | 9794 | r = onfinish.wait(); |
9f95a23c | 9795 | client_lock.lock(); |
7c673cae | 9796 | _sync_write_commit(in); |
f6b5b4d7 TL |
9797 | if (r < 0) |
9798 | goto done; | |
7c673cae FG |
9799 | } |
9800 | ||
9801 | // if we get here, write was successful, update client metadata | |
9802 | success: | |
9803 | // time | |
9804 | lat = ceph_clock_now(); | |
9805 | lat -= start; | |
9806 | logger->tinc(l_c_wrlat, lat); | |
9807 | ||
f64942e4 AA |
9808 | if (fpos) { |
9809 | lock_fh_pos(f); | |
9810 | f->pos = fpos; | |
9811 | unlock_fh_pos(f); | |
9812 | } | |
7c673cae | 9813 | totalwritten = size; |
11fdf7f2 | 9814 | r = (int64_t)totalwritten; |
7c673cae FG |
9815 | |
9816 | // extend file? | |
9817 | if (totalwritten + offset > in->size) { | |
9818 | in->size = totalwritten + offset; | |
28e407b8 | 9819 | in->mark_caps_dirty(CEPH_CAP_FILE_WR); |
7c673cae | 9820 | |
11fdf7f2 | 9821 | if (is_quota_bytes_approaching(in, f->actor_perms)) { |
7c673cae | 9822 | check_caps(in, CHECK_CAPS_NODELAY); |
31f18b77 FG |
9823 | } else if (is_max_size_approaching(in)) { |
9824 | check_caps(in, 0); | |
7c673cae FG |
9825 | } |
9826 | ||
9827 | ldout(cct, 7) << "wrote to " << totalwritten+offset << ", extending file size" << dendl; | |
9828 | } else { | |
9829 | ldout(cct, 7) << "wrote to " << totalwritten+offset << ", leaving file size at " << in->size << dendl; | |
9830 | } | |
9831 | ||
9832 | // mtime | |
91327a77 | 9833 | in->mtime = in->ctime = ceph_clock_now(); |
7c673cae | 9834 | in->change_attr++; |
28e407b8 | 9835 | in->mark_caps_dirty(CEPH_CAP_FILE_WR); |
7c673cae FG |
9836 | |
9837 | done: | |
9838 | ||
11fdf7f2 | 9839 | if (nullptr != onuninline) { |
9f95a23c | 9840 | client_lock.unlock(); |
11fdf7f2 | 9841 | int uninline_ret = onuninline->wait(); |
9f95a23c | 9842 | client_lock.lock(); |
7c673cae FG |
9843 | |
9844 | if (uninline_ret >= 0 || uninline_ret == -ECANCELED) { | |
9845 | in->inline_data.clear(); | |
9846 | in->inline_version = CEPH_INLINE_NONE; | |
28e407b8 | 9847 | in->mark_caps_dirty(CEPH_CAP_FILE_WR); |
7c673cae FG |
9848 | check_caps(in, 0); |
9849 | } else | |
9850 | r = uninline_ret; | |
9851 | } | |
9852 | ||
9853 | put_cap_ref(in, CEPH_CAP_FILE_WR); | |
9854 | return r; | |
9855 | } | |
9856 | ||
9857 | int Client::_flush(Fh *f) | |
9858 | { | |
9859 | Inode *in = f->inode.get(); | |
9860 | int err = f->take_async_err(); | |
9861 | if (err != 0) { | |
9862 | ldout(cct, 1) << __func__ << ": " << f << " on inode " << *in << " caught async_err = " | |
9863 | << cpp_strerror(err) << dendl; | |
9864 | } else { | |
9865 | ldout(cct, 10) << __func__ << ": " << f << " on inode " << *in << " no async_err state" << dendl; | |
9866 | } | |
9867 | ||
9868 | return err; | |
9869 | } | |
9870 | ||
9871 | int Client::truncate(const char *relpath, loff_t length, const UserPerm& perms) | |
9872 | { | |
9873 | struct ceph_statx stx; | |
9874 | stx.stx_size = length; | |
9875 | return setattrx(relpath, &stx, CEPH_SETATTR_SIZE, perms); | |
9876 | } | |
9877 | ||
9878 | int Client::ftruncate(int fd, loff_t length, const UserPerm& perms) | |
9879 | { | |
11fdf7f2 TL |
9880 | std::lock_guard lock(client_lock); |
9881 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
9882 | tout(cct) << fd << std::endl; |
9883 | tout(cct) << length << std::endl; | |
9884 | ||
181888fb FG |
9885 | if (unmounting) |
9886 | return -ENOTCONN; | |
9887 | ||
7c673cae FG |
9888 | Fh *f = get_filehandle(fd); |
9889 | if (!f) | |
9890 | return -EBADF; | |
9891 | #if defined(__linux__) && defined(O_PATH) | |
9892 | if (f->flags & O_PATH) | |
9893 | return -EBADF; | |
9894 | #endif | |
adb31ebb TL |
9895 | if ((f->mode & CEPH_FILE_MODE_WR) == 0) |
9896 | return -EBADF; | |
7c673cae FG |
9897 | struct stat attr; |
9898 | attr.st_size = length; | |
9899 | return _setattr(f->inode, &attr, CEPH_SETATTR_SIZE, perms); | |
9900 | } | |
9901 | ||
9902 | int Client::fsync(int fd, bool syncdataonly) | |
9903 | { | |
11fdf7f2 | 9904 | std::lock_guard lock(client_lock); |
7c673cae FG |
9905 | tout(cct) << "fsync" << std::endl; |
9906 | tout(cct) << fd << std::endl; | |
9907 | tout(cct) << syncdataonly << std::endl; | |
9908 | ||
181888fb FG |
9909 | if (unmounting) |
9910 | return -ENOTCONN; | |
9911 | ||
7c673cae FG |
9912 | Fh *f = get_filehandle(fd); |
9913 | if (!f) | |
9914 | return -EBADF; | |
9915 | #if defined(__linux__) && defined(O_PATH) | |
9916 | if (f->flags & O_PATH) | |
9917 | return -EBADF; | |
9918 | #endif | |
9919 | int r = _fsync(f, syncdataonly); | |
9920 | if (r == 0) { | |
9921 | // The IOs in this fsync were okay, but maybe something happened | |
9922 | // in the background that we shoudl be reporting? | |
9923 | r = f->take_async_err(); | |
1adf2230 | 9924 | ldout(cct, 5) << "fsync(" << fd << ", " << syncdataonly |
7c673cae FG |
9925 | << ") = 0, async_err = " << r << dendl; |
9926 | } else { | |
9927 | // Assume that an error we encountered during fsync, even reported | |
9928 | // synchronously, would also have applied the error to the Fh, and we | |
9929 | // should clear it here to avoid returning the same error again on next | |
9930 | // call. | |
1adf2230 | 9931 | ldout(cct, 5) << "fsync(" << fd << ", " << syncdataonly << ") = " |
7c673cae FG |
9932 | << r << dendl; |
9933 | f->take_async_err(); | |
9934 | } | |
9935 | return r; | |
9936 | } | |
9937 | ||
9938 | int Client::_fsync(Inode *in, bool syncdataonly) | |
9939 | { | |
9940 | int r = 0; | |
11fdf7f2 | 9941 | std::unique_ptr<C_SaferCond> object_cacher_completion = nullptr; |
7c673cae FG |
9942 | ceph_tid_t flush_tid = 0; |
9943 | InodeRef tmp_ref; | |
11fdf7f2 TL |
9944 | utime_t lat; |
9945 | utime_t start = ceph_clock_now(); | |
7c673cae | 9946 | |
1adf2230 | 9947 | ldout(cct, 8) << "_fsync on " << *in << " " << (syncdataonly ? "(dataonly)":"(data+metadata)") << dendl; |
7c673cae FG |
9948 | |
9949 | if (cct->_conf->client_oc) { | |
11fdf7f2 TL |
9950 | object_cacher_completion.reset(new C_SaferCond("Client::_fsync::lock")); |
9951 | tmp_ref = in; // take a reference; C_SaferCond doesn't and _flush won't either | |
9952 | _flush(in, object_cacher_completion.get()); | |
7c673cae FG |
9953 | ldout(cct, 15) << "using return-valued form of _fsync" << dendl; |
9954 | } | |
9955 | ||
9956 | if (!syncdataonly && in->dirty_caps) { | |
9957 | check_caps(in, CHECK_CAPS_NODELAY|CHECK_CAPS_SYNCHRONOUS); | |
9958 | if (in->flushing_caps) | |
9959 | flush_tid = last_flush_tid; | |
9960 | } else ldout(cct, 10) << "no metadata needs to commit" << dendl; | |
9961 | ||
9962 | if (!syncdataonly && !in->unsafe_ops.empty()) { | |
28e407b8 AA |
9963 | flush_mdlog_sync(); |
9964 | ||
7c673cae FG |
9965 | MetaRequest *req = in->unsafe_ops.back(); |
9966 | ldout(cct, 15) << "waiting on unsafe requests, last tid " << req->get_tid() << dendl; | |
9967 | ||
9968 | req->get(); | |
9969 | wait_on_list(req->waitfor_safe); | |
9970 | put_request(req); | |
9971 | } | |
9972 | ||
11fdf7f2 | 9973 | if (nullptr != object_cacher_completion) { // wait on a real reply instead of guessing |
9f95a23c | 9974 | client_lock.unlock(); |
7c673cae | 9975 | ldout(cct, 15) << "waiting on data to flush" << dendl; |
11fdf7f2 | 9976 | r = object_cacher_completion->wait(); |
9f95a23c | 9977 | client_lock.lock(); |
7c673cae FG |
9978 | ldout(cct, 15) << "got " << r << " from flush writeback" << dendl; |
9979 | } else { | |
9980 | // FIXME: this can starve | |
9981 | while (in->cap_refs[CEPH_CAP_FILE_BUFFER] > 0) { | |
9982 | ldout(cct, 10) << "ino " << in->ino << " has " << in->cap_refs[CEPH_CAP_FILE_BUFFER] | |
9983 | << " uncommitted, waiting" << dendl; | |
9984 | wait_on_list(in->waitfor_commit); | |
9985 | } | |
9986 | } | |
9987 | ||
9988 | if (!r) { | |
9989 | if (flush_tid > 0) | |
9990 | wait_sync_caps(in, flush_tid); | |
9991 | ||
9992 | ldout(cct, 10) << "ino " << in->ino << " has no uncommitted writes" << dendl; | |
9993 | } else { | |
1adf2230 | 9994 | ldout(cct, 8) << "ino " << in->ino << " failed to commit to disk! " |
7c673cae FG |
9995 | << cpp_strerror(-r) << dendl; |
9996 | } | |
11fdf7f2 TL |
9997 | |
9998 | lat = ceph_clock_now(); | |
9999 | lat -= start; | |
10000 | logger->tinc(l_c_fsync, lat); | |
7c673cae FG |
10001 | |
10002 | return r; | |
10003 | } | |
10004 | ||
10005 | int Client::_fsync(Fh *f, bool syncdataonly) | |
10006 | { | |
1adf2230 | 10007 | ldout(cct, 8) << "_fsync(" << f << ", " << (syncdataonly ? "dataonly)":"data+metadata)") << dendl; |
7c673cae FG |
10008 | return _fsync(f->inode.get(), syncdataonly); |
10009 | } | |
10010 | ||
10011 | int Client::fstat(int fd, struct stat *stbuf, const UserPerm& perms, int mask) | |
10012 | { | |
11fdf7f2 | 10013 | std::lock_guard lock(client_lock); |
7c673cae FG |
10014 | tout(cct) << "fstat mask " << hex << mask << dec << std::endl; |
10015 | tout(cct) << fd << std::endl; | |
10016 | ||
181888fb FG |
10017 | if (unmounting) |
10018 | return -ENOTCONN; | |
10019 | ||
7c673cae FG |
10020 | Fh *f = get_filehandle(fd); |
10021 | if (!f) | |
10022 | return -EBADF; | |
10023 | int r = _getattr(f->inode, mask, perms); | |
10024 | if (r < 0) | |
10025 | return r; | |
10026 | fill_stat(f->inode, stbuf, NULL); | |
1adf2230 | 10027 | ldout(cct, 5) << "fstat(" << fd << ", " << stbuf << ") = " << r << dendl; |
7c673cae FG |
10028 | return r; |
10029 | } | |
10030 | ||
10031 | int Client::fstatx(int fd, struct ceph_statx *stx, const UserPerm& perms, | |
10032 | unsigned int want, unsigned int flags) | |
10033 | { | |
11fdf7f2 | 10034 | std::lock_guard lock(client_lock); |
7c673cae FG |
10035 | tout(cct) << "fstatx flags " << hex << flags << " want " << want << dec << std::endl; |
10036 | tout(cct) << fd << std::endl; | |
10037 | ||
181888fb FG |
10038 | if (unmounting) |
10039 | return -ENOTCONN; | |
10040 | ||
7c673cae FG |
10041 | Fh *f = get_filehandle(fd); |
10042 | if (!f) | |
10043 | return -EBADF; | |
10044 | ||
10045 | unsigned mask = statx_to_mask(flags, want); | |
10046 | ||
10047 | int r = 0; | |
94b18763 | 10048 | if (mask && !f->inode->caps_issued_mask(mask, true)) { |
7c673cae FG |
10049 | r = _getattr(f->inode, mask, perms); |
10050 | if (r < 0) { | |
10051 | ldout(cct, 3) << "fstatx exit on error!" << dendl; | |
10052 | return r; | |
10053 | } | |
10054 | } | |
10055 | ||
10056 | fill_statx(f->inode, mask, stx); | |
10057 | ldout(cct, 3) << "fstatx(" << fd << ", " << stx << ") = " << r << dendl; | |
10058 | return r; | |
10059 | } | |
10060 | ||
10061 | // not written yet, but i want to link! | |
10062 | ||
10063 | int Client::chdir(const char *relpath, std::string &new_cwd, | |
10064 | const UserPerm& perms) | |
10065 | { | |
11fdf7f2 | 10066 | std::lock_guard lock(client_lock); |
7c673cae FG |
10067 | tout(cct) << "chdir" << std::endl; |
10068 | tout(cct) << relpath << std::endl; | |
181888fb FG |
10069 | |
10070 | if (unmounting) | |
10071 | return -ENOTCONN; | |
10072 | ||
7c673cae FG |
10073 | filepath path(relpath); |
10074 | InodeRef in; | |
10075 | int r = path_walk(path, &in, perms); | |
10076 | if (r < 0) | |
10077 | return r; | |
92f5a8d4 TL |
10078 | |
10079 | if (!(in.get()->is_dir())) | |
10080 | return -ENOTDIR; | |
10081 | ||
7c673cae FG |
10082 | if (cwd != in) |
10083 | cwd.swap(in); | |
10084 | ldout(cct, 3) << "chdir(" << relpath << ") cwd now " << cwd->ino << dendl; | |
10085 | ||
b5b8bbf5 | 10086 | _getcwd(new_cwd, perms); |
7c673cae FG |
10087 | return 0; |
10088 | } | |
10089 | ||
b5b8bbf5 | 10090 | void Client::_getcwd(string& dir, const UserPerm& perms) |
7c673cae FG |
10091 | { |
10092 | filepath path; | |
11fdf7f2 | 10093 | ldout(cct, 10) << __func__ << " " << *cwd << dendl; |
7c673cae FG |
10094 | |
10095 | Inode *in = cwd.get(); | |
10096 | while (in != root) { | |
11fdf7f2 | 10097 | ceph_assert(in->dentries.size() < 2); // dirs can't be hard-linked |
7c673cae FG |
10098 | |
10099 | // A cwd or ancester is unlinked | |
11fdf7f2 | 10100 | if (in->dentries.empty()) { |
7c673cae FG |
10101 | return; |
10102 | } | |
10103 | ||
10104 | Dentry *dn = in->get_first_parent(); | |
10105 | ||
10106 | ||
10107 | if (!dn) { | |
10108 | // look it up | |
11fdf7f2 | 10109 | ldout(cct, 10) << __func__ << " looking up parent for " << *in << dendl; |
7c673cae FG |
10110 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_LOOKUPNAME); |
10111 | filepath path(in->ino); | |
10112 | req->set_filepath(path); | |
10113 | req->set_inode(in); | |
10114 | int res = make_request(req, perms); | |
10115 | if (res < 0) | |
10116 | break; | |
10117 | ||
10118 | // start over | |
10119 | path = filepath(); | |
10120 | in = cwd.get(); | |
10121 | continue; | |
10122 | } | |
10123 | path.push_front_dentry(dn->name); | |
10124 | in = dn->dir->parent_inode; | |
10125 | } | |
10126 | dir = "/"; | |
10127 | dir += path.get_path(); | |
10128 | } | |
10129 | ||
b5b8bbf5 FG |
10130 | void Client::getcwd(string& dir, const UserPerm& perms) |
10131 | { | |
11fdf7f2 | 10132 | std::lock_guard l(client_lock); |
181888fb FG |
10133 | if (!unmounting) |
10134 | _getcwd(dir, perms); | |
b5b8bbf5 FG |
10135 | } |
10136 | ||
7c673cae FG |
10137 | int Client::statfs(const char *path, struct statvfs *stbuf, |
10138 | const UserPerm& perms) | |
10139 | { | |
11fdf7f2 TL |
10140 | std::lock_guard l(client_lock); |
10141 | tout(cct) << __func__ << std::endl; | |
91327a77 | 10142 | unsigned long int total_files_on_fs; |
7c673cae | 10143 | |
181888fb FG |
10144 | if (unmounting) |
10145 | return -ENOTCONN; | |
10146 | ||
7c673cae FG |
10147 | ceph_statfs stats; |
10148 | C_SaferCond cond; | |
d2e6a577 FG |
10149 | |
10150 | const vector<int64_t> &data_pools = mdsmap->get_data_pools(); | |
10151 | if (data_pools.size() == 1) { | |
10152 | objecter->get_fs_stats(stats, data_pools[0], &cond); | |
10153 | } else { | |
10154 | objecter->get_fs_stats(stats, boost::optional<int64_t>(), &cond); | |
10155 | } | |
7c673cae | 10156 | |
9f95a23c | 10157 | client_lock.unlock(); |
7c673cae | 10158 | int rval = cond.wait(); |
91327a77 AA |
10159 | assert(root); |
10160 | total_files_on_fs = root->rstat.rfiles + root->rstat.rsubdirs; | |
9f95a23c | 10161 | client_lock.lock(); |
7c673cae FG |
10162 | |
10163 | if (rval < 0) { | |
10164 | ldout(cct, 1) << "underlying call to statfs returned error: " | |
10165 | << cpp_strerror(rval) | |
10166 | << dendl; | |
10167 | return rval; | |
10168 | } | |
10169 | ||
10170 | memset(stbuf, 0, sizeof(*stbuf)); | |
10171 | ||
10172 | /* | |
10173 | * we're going to set a block size of 4MB so we can represent larger | |
10174 | * FSes without overflowing. Additionally convert the space | |
10175 | * measurements from KB to bytes while making them in terms of | |
10176 | * blocks. We use 4MB only because it is big enough, and because it | |
10177 | * actually *is* the (ceph) default block size. | |
10178 | */ | |
10179 | const int CEPH_BLOCK_SHIFT = 22; | |
10180 | stbuf->f_frsize = 1 << CEPH_BLOCK_SHIFT; | |
10181 | stbuf->f_bsize = 1 << CEPH_BLOCK_SHIFT; | |
91327a77 AA |
10182 | stbuf->f_files = total_files_on_fs; |
10183 | stbuf->f_ffree = 0; | |
7c673cae FG |
10184 | stbuf->f_favail = -1; |
10185 | stbuf->f_fsid = -1; // ?? | |
10186 | stbuf->f_flag = 0; // ?? | |
10187 | stbuf->f_namemax = NAME_MAX; | |
10188 | ||
10189 | // Usually quota_root will == root_ancestor, but if the mount root has no | |
10190 | // quota but we can see a parent of it that does have a quota, we'll | |
10191 | // respect that one instead. | |
11fdf7f2 | 10192 | ceph_assert(root != nullptr); |
7c673cae FG |
10193 | Inode *quota_root = root->quota.is_enable() ? root : get_quota_root(root, perms); |
10194 | ||
10195 | // get_quota_root should always give us something | |
10196 | // because client quotas are always enabled | |
11fdf7f2 | 10197 | ceph_assert(quota_root != nullptr); |
7c673cae FG |
10198 | |
10199 | if (quota_root && cct->_conf->client_quota_df && quota_root->quota.max_bytes) { | |
10200 | ||
10201 | // Skip the getattr if any sessions are stale, as we don't want to | |
10202 | // block `df` if this client has e.g. been evicted, or if the MDS cluster | |
10203 | // is unhealthy. | |
10204 | if (!_any_stale_sessions()) { | |
10205 | int r = _getattr(quota_root, 0, perms, true); | |
10206 | if (r != 0) { | |
10207 | // Ignore return value: error getting latest inode metadata is not a good | |
10208 | // reason to break "df". | |
10209 | lderr(cct) << "Error in getattr on quota root 0x" | |
10210 | << std::hex << quota_root->ino << std::dec | |
10211 | << " statfs result may be outdated" << dendl; | |
10212 | } | |
10213 | } | |
10214 | ||
10215 | // Special case: if there is a size quota set on the Inode acting | |
10216 | // as the root for this client mount, then report the quota status | |
10217 | // as the filesystem statistics. | |
10218 | const fsblkcnt_t total = quota_root->quota.max_bytes >> CEPH_BLOCK_SHIFT; | |
10219 | const fsblkcnt_t used = quota_root->rstat.rbytes >> CEPH_BLOCK_SHIFT; | |
31f18b77 FG |
10220 | // It is possible for a quota to be exceeded: arithmetic here must |
10221 | // handle case where used > total. | |
10222 | const fsblkcnt_t free = total > used ? total - used : 0; | |
7c673cae FG |
10223 | |
10224 | stbuf->f_blocks = total; | |
10225 | stbuf->f_bfree = free; | |
10226 | stbuf->f_bavail = free; | |
10227 | } else { | |
d2e6a577 | 10228 | // General case: report the cluster statistics returned from RADOS. Because |
7c673cae FG |
10229 | // multiple pools may be used without one filesystem namespace via |
10230 | // layouts, this is the most correct thing we can do. | |
10231 | stbuf->f_blocks = stats.kb >> (CEPH_BLOCK_SHIFT - 10); | |
10232 | stbuf->f_bfree = stats.kb_avail >> (CEPH_BLOCK_SHIFT - 10); | |
10233 | stbuf->f_bavail = stats.kb_avail >> (CEPH_BLOCK_SHIFT - 10); | |
10234 | } | |
10235 | ||
10236 | return rval; | |
10237 | } | |
10238 | ||
10239 | int Client::_do_filelock(Inode *in, Fh *fh, int lock_type, int op, int sleep, | |
10240 | struct flock *fl, uint64_t owner, bool removing) | |
10241 | { | |
11fdf7f2 | 10242 | ldout(cct, 10) << __func__ << " ino " << in->ino |
7c673cae FG |
10243 | << (lock_type == CEPH_LOCK_FCNTL ? " fcntl" : " flock") |
10244 | << " type " << fl->l_type << " owner " << owner | |
10245 | << " " << fl->l_start << "~" << fl->l_len << dendl; | |
10246 | ||
f6b5b4d7 TL |
10247 | if (in->flags & I_ERROR_FILELOCK) |
10248 | return -EIO; | |
10249 | ||
7c673cae FG |
10250 | int lock_cmd; |
10251 | if (F_RDLCK == fl->l_type) | |
10252 | lock_cmd = CEPH_LOCK_SHARED; | |
10253 | else if (F_WRLCK == fl->l_type) | |
10254 | lock_cmd = CEPH_LOCK_EXCL; | |
10255 | else if (F_UNLCK == fl->l_type) | |
10256 | lock_cmd = CEPH_LOCK_UNLOCK; | |
10257 | else | |
10258 | return -EIO; | |
10259 | ||
10260 | if (op != CEPH_MDS_OP_SETFILELOCK || lock_cmd == CEPH_LOCK_UNLOCK) | |
10261 | sleep = 0; | |
10262 | ||
10263 | /* | |
10264 | * Set the most significant bit, so that MDS knows the 'owner' | |
10265 | * is sufficient to identify the owner of lock. (old code uses | |
10266 | * both 'owner' and 'pid') | |
10267 | */ | |
10268 | owner |= (1ULL << 63); | |
10269 | ||
10270 | MetaRequest *req = new MetaRequest(op); | |
10271 | filepath path; | |
10272 | in->make_nosnap_relative_path(path); | |
10273 | req->set_filepath(path); | |
10274 | req->set_inode(in); | |
10275 | ||
10276 | req->head.args.filelock_change.rule = lock_type; | |
10277 | req->head.args.filelock_change.type = lock_cmd; | |
10278 | req->head.args.filelock_change.owner = owner; | |
10279 | req->head.args.filelock_change.pid = fl->l_pid; | |
10280 | req->head.args.filelock_change.start = fl->l_start; | |
10281 | req->head.args.filelock_change.length = fl->l_len; | |
10282 | req->head.args.filelock_change.wait = sleep; | |
10283 | ||
10284 | int ret; | |
10285 | bufferlist bl; | |
10286 | ||
10287 | if (sleep && switch_interrupt_cb) { | |
10288 | // enable interrupt | |
10289 | switch_interrupt_cb(callback_handle, req->get()); | |
10290 | ret = make_request(req, fh->actor_perms, NULL, NULL, -1, &bl); | |
7c673cae FG |
10291 | // disable interrupt |
10292 | switch_interrupt_cb(callback_handle, NULL); | |
31f18b77 FG |
10293 | if (ret == 0 && req->aborted()) { |
10294 | // effect of this lock request has been revoked by the 'lock intr' request | |
10295 | ret = req->get_abort_code(); | |
10296 | } | |
7c673cae FG |
10297 | put_request(req); |
10298 | } else { | |
10299 | ret = make_request(req, fh->actor_perms, NULL, NULL, -1, &bl); | |
10300 | } | |
10301 | ||
10302 | if (ret == 0) { | |
10303 | if (op == CEPH_MDS_OP_GETFILELOCK) { | |
10304 | ceph_filelock filelock; | |
11fdf7f2 TL |
10305 | auto p = bl.cbegin(); |
10306 | decode(filelock, p); | |
7c673cae FG |
10307 | |
10308 | if (CEPH_LOCK_SHARED == filelock.type) | |
10309 | fl->l_type = F_RDLCK; | |
10310 | else if (CEPH_LOCK_EXCL == filelock.type) | |
10311 | fl->l_type = F_WRLCK; | |
10312 | else | |
10313 | fl->l_type = F_UNLCK; | |
10314 | ||
10315 | fl->l_whence = SEEK_SET; | |
10316 | fl->l_start = filelock.start; | |
10317 | fl->l_len = filelock.length; | |
10318 | fl->l_pid = filelock.pid; | |
10319 | } else if (op == CEPH_MDS_OP_SETFILELOCK) { | |
10320 | ceph_lock_state_t *lock_state; | |
10321 | if (lock_type == CEPH_LOCK_FCNTL) { | |
10322 | if (!in->fcntl_locks) | |
11fdf7f2 TL |
10323 | in->fcntl_locks.reset(new ceph_lock_state_t(cct, CEPH_LOCK_FCNTL)); |
10324 | lock_state = in->fcntl_locks.get(); | |
7c673cae FG |
10325 | } else if (lock_type == CEPH_LOCK_FLOCK) { |
10326 | if (!in->flock_locks) | |
11fdf7f2 TL |
10327 | in->flock_locks.reset(new ceph_lock_state_t(cct, CEPH_LOCK_FLOCK)); |
10328 | lock_state = in->flock_locks.get(); | |
7c673cae FG |
10329 | } else { |
10330 | ceph_abort(); | |
10331 | return -EINVAL; | |
10332 | } | |
10333 | _update_lock_state(fl, owner, lock_state); | |
10334 | ||
10335 | if (!removing) { | |
10336 | if (lock_type == CEPH_LOCK_FCNTL) { | |
10337 | if (!fh->fcntl_locks) | |
11fdf7f2 TL |
10338 | fh->fcntl_locks.reset(new ceph_lock_state_t(cct, CEPH_LOCK_FCNTL)); |
10339 | lock_state = fh->fcntl_locks.get(); | |
7c673cae FG |
10340 | } else { |
10341 | if (!fh->flock_locks) | |
11fdf7f2 TL |
10342 | fh->flock_locks.reset(new ceph_lock_state_t(cct, CEPH_LOCK_FLOCK)); |
10343 | lock_state = fh->flock_locks.get(); | |
7c673cae FG |
10344 | } |
10345 | _update_lock_state(fl, owner, lock_state); | |
10346 | } | |
10347 | } else | |
10348 | ceph_abort(); | |
10349 | } | |
10350 | return ret; | |
10351 | } | |
10352 | ||
10353 | int Client::_interrupt_filelock(MetaRequest *req) | |
10354 | { | |
31f18b77 FG |
10355 | // Set abort code, but do not kick. The abort code prevents the request |
10356 | // from being re-sent. | |
10357 | req->abort(-EINTR); | |
10358 | if (req->mds < 0) | |
10359 | return 0; // haven't sent the request | |
10360 | ||
7c673cae FG |
10361 | Inode *in = req->inode(); |
10362 | ||
10363 | int lock_type; | |
10364 | if (req->head.args.filelock_change.rule == CEPH_LOCK_FLOCK) | |
10365 | lock_type = CEPH_LOCK_FLOCK_INTR; | |
10366 | else if (req->head.args.filelock_change.rule == CEPH_LOCK_FCNTL) | |
10367 | lock_type = CEPH_LOCK_FCNTL_INTR; | |
10368 | else { | |
10369 | ceph_abort(); | |
10370 | return -EINVAL; | |
10371 | } | |
10372 | ||
10373 | MetaRequest *intr_req = new MetaRequest(CEPH_MDS_OP_SETFILELOCK); | |
10374 | filepath path; | |
10375 | in->make_nosnap_relative_path(path); | |
10376 | intr_req->set_filepath(path); | |
10377 | intr_req->set_inode(in); | |
10378 | intr_req->head.args.filelock_change = req->head.args.filelock_change; | |
10379 | intr_req->head.args.filelock_change.rule = lock_type; | |
10380 | intr_req->head.args.filelock_change.type = CEPH_LOCK_UNLOCK; | |
10381 | ||
10382 | UserPerm perms(req->get_uid(), req->get_gid()); | |
10383 | return make_request(intr_req, perms, NULL, NULL, -1); | |
10384 | } | |
10385 | ||
10386 | void Client::_encode_filelocks(Inode *in, bufferlist& bl) | |
10387 | { | |
10388 | if (!in->fcntl_locks && !in->flock_locks) | |
10389 | return; | |
10390 | ||
10391 | unsigned nr_fcntl_locks = in->fcntl_locks ? in->fcntl_locks->held_locks.size() : 0; | |
11fdf7f2 | 10392 | encode(nr_fcntl_locks, bl); |
7c673cae | 10393 | if (nr_fcntl_locks) { |
11fdf7f2 | 10394 | auto &lock_state = in->fcntl_locks; |
7c673cae FG |
10395 | for(multimap<uint64_t, ceph_filelock>::iterator p = lock_state->held_locks.begin(); |
10396 | p != lock_state->held_locks.end(); | |
10397 | ++p) | |
11fdf7f2 | 10398 | encode(p->second, bl); |
7c673cae FG |
10399 | } |
10400 | ||
10401 | unsigned nr_flock_locks = in->flock_locks ? in->flock_locks->held_locks.size() : 0; | |
11fdf7f2 | 10402 | encode(nr_flock_locks, bl); |
7c673cae | 10403 | if (nr_flock_locks) { |
11fdf7f2 | 10404 | auto &lock_state = in->flock_locks; |
7c673cae FG |
10405 | for(multimap<uint64_t, ceph_filelock>::iterator p = lock_state->held_locks.begin(); |
10406 | p != lock_state->held_locks.end(); | |
10407 | ++p) | |
11fdf7f2 | 10408 | encode(p->second, bl); |
7c673cae FG |
10409 | } |
10410 | ||
11fdf7f2 | 10411 | ldout(cct, 10) << __func__ << " ino " << in->ino << ", " << nr_fcntl_locks |
7c673cae FG |
10412 | << " fcntl locks, " << nr_flock_locks << " flock locks" << dendl; |
10413 | } | |
10414 | ||
10415 | void Client::_release_filelocks(Fh *fh) | |
10416 | { | |
10417 | if (!fh->fcntl_locks && !fh->flock_locks) | |
10418 | return; | |
10419 | ||
10420 | Inode *in = fh->inode.get(); | |
11fdf7f2 | 10421 | ldout(cct, 10) << __func__ << " " << fh << " ino " << in->ino << dendl; |
7c673cae | 10422 | |
f6b5b4d7 TL |
10423 | list<ceph_filelock> activated_locks; |
10424 | ||
7c673cae FG |
10425 | list<pair<int, ceph_filelock> > to_release; |
10426 | ||
10427 | if (fh->fcntl_locks) { | |
11fdf7f2 | 10428 | auto &lock_state = fh->fcntl_locks; |
f6b5b4d7 TL |
10429 | for(auto p = lock_state->held_locks.begin(); p != lock_state->held_locks.end(); ) { |
10430 | auto q = p++; | |
10431 | if (in->flags & I_ERROR_FILELOCK) { | |
10432 | lock_state->remove_lock(q->second, activated_locks); | |
10433 | } else { | |
10434 | to_release.push_back(pair<int, ceph_filelock>(CEPH_LOCK_FCNTL, q->second)); | |
10435 | } | |
10436 | } | |
11fdf7f2 | 10437 | lock_state.reset(); |
7c673cae FG |
10438 | } |
10439 | if (fh->flock_locks) { | |
11fdf7f2 | 10440 | auto &lock_state = fh->flock_locks; |
f6b5b4d7 TL |
10441 | for(auto p = lock_state->held_locks.begin(); p != lock_state->held_locks.end(); ) { |
10442 | auto q = p++; | |
10443 | if (in->flags & I_ERROR_FILELOCK) { | |
10444 | lock_state->remove_lock(q->second, activated_locks); | |
10445 | } else { | |
10446 | to_release.push_back(pair<int, ceph_filelock>(CEPH_LOCK_FLOCK, q->second)); | |
10447 | } | |
10448 | } | |
11fdf7f2 | 10449 | lock_state.reset(); |
7c673cae FG |
10450 | } |
10451 | ||
f6b5b4d7 TL |
10452 | if ((in->flags & I_ERROR_FILELOCK) && !in->has_any_filelocks()) |
10453 | in->flags &= ~I_ERROR_FILELOCK; | |
7c673cae | 10454 | |
f6b5b4d7 | 10455 | if (to_release.empty()) |
11fdf7f2 TL |
10456 | return; |
10457 | ||
7c673cae FG |
10458 | struct flock fl; |
10459 | memset(&fl, 0, sizeof(fl)); | |
10460 | fl.l_whence = SEEK_SET; | |
10461 | fl.l_type = F_UNLCK; | |
10462 | ||
10463 | for (list<pair<int, ceph_filelock> >::iterator p = to_release.begin(); | |
10464 | p != to_release.end(); | |
10465 | ++p) { | |
10466 | fl.l_start = p->second.start; | |
10467 | fl.l_len = p->second.length; | |
10468 | fl.l_pid = p->second.pid; | |
10469 | _do_filelock(in, fh, p->first, CEPH_MDS_OP_SETFILELOCK, 0, &fl, | |
10470 | p->second.owner, true); | |
10471 | } | |
10472 | } | |
10473 | ||
10474 | void Client::_update_lock_state(struct flock *fl, uint64_t owner, | |
10475 | ceph_lock_state_t *lock_state) | |
10476 | { | |
10477 | int lock_cmd; | |
10478 | if (F_RDLCK == fl->l_type) | |
10479 | lock_cmd = CEPH_LOCK_SHARED; | |
10480 | else if (F_WRLCK == fl->l_type) | |
10481 | lock_cmd = CEPH_LOCK_EXCL; | |
10482 | else | |
10483 | lock_cmd = CEPH_LOCK_UNLOCK;; | |
10484 | ||
10485 | ceph_filelock filelock; | |
10486 | filelock.start = fl->l_start; | |
10487 | filelock.length = fl->l_len; | |
10488 | filelock.client = 0; | |
10489 | // see comment in _do_filelock() | |
10490 | filelock.owner = owner | (1ULL << 63); | |
10491 | filelock.pid = fl->l_pid; | |
10492 | filelock.type = lock_cmd; | |
10493 | ||
10494 | if (filelock.type == CEPH_LOCK_UNLOCK) { | |
10495 | list<ceph_filelock> activated_locks; | |
10496 | lock_state->remove_lock(filelock, activated_locks); | |
10497 | } else { | |
10498 | bool r = lock_state->add_lock(filelock, false, false, NULL); | |
11fdf7f2 | 10499 | ceph_assert(r); |
7c673cae FG |
10500 | } |
10501 | } | |
10502 | ||
10503 | int Client::_getlk(Fh *fh, struct flock *fl, uint64_t owner) | |
10504 | { | |
10505 | Inode *in = fh->inode.get(); | |
10506 | ldout(cct, 10) << "_getlk " << fh << " ino " << in->ino << dendl; | |
10507 | int ret = _do_filelock(in, fh, CEPH_LOCK_FCNTL, CEPH_MDS_OP_GETFILELOCK, 0, fl, owner); | |
10508 | return ret; | |
10509 | } | |
10510 | ||
10511 | int Client::_setlk(Fh *fh, struct flock *fl, uint64_t owner, int sleep) | |
10512 | { | |
10513 | Inode *in = fh->inode.get(); | |
10514 | ldout(cct, 10) << "_setlk " << fh << " ino " << in->ino << dendl; | |
10515 | int ret = _do_filelock(in, fh, CEPH_LOCK_FCNTL, CEPH_MDS_OP_SETFILELOCK, sleep, fl, owner); | |
10516 | ldout(cct, 10) << "_setlk " << fh << " ino " << in->ino << " result=" << ret << dendl; | |
10517 | return ret; | |
10518 | } | |
10519 | ||
10520 | int Client::_flock(Fh *fh, int cmd, uint64_t owner) | |
10521 | { | |
10522 | Inode *in = fh->inode.get(); | |
10523 | ldout(cct, 10) << "_flock " << fh << " ino " << in->ino << dendl; | |
10524 | ||
10525 | int sleep = !(cmd & LOCK_NB); | |
10526 | cmd &= ~LOCK_NB; | |
10527 | ||
10528 | int type; | |
10529 | switch (cmd) { | |
10530 | case LOCK_SH: | |
10531 | type = F_RDLCK; | |
10532 | break; | |
10533 | case LOCK_EX: | |
10534 | type = F_WRLCK; | |
10535 | break; | |
10536 | case LOCK_UN: | |
10537 | type = F_UNLCK; | |
10538 | break; | |
10539 | default: | |
10540 | return -EINVAL; | |
10541 | } | |
10542 | ||
10543 | struct flock fl; | |
10544 | memset(&fl, 0, sizeof(fl)); | |
10545 | fl.l_type = type; | |
10546 | fl.l_whence = SEEK_SET; | |
10547 | ||
10548 | int ret = _do_filelock(in, fh, CEPH_LOCK_FLOCK, CEPH_MDS_OP_SETFILELOCK, sleep, &fl, owner); | |
10549 | ldout(cct, 10) << "_flock " << fh << " ino " << in->ino << " result=" << ret << dendl; | |
10550 | return ret; | |
10551 | } | |
10552 | ||
10553 | int Client::ll_statfs(Inode *in, struct statvfs *stbuf, const UserPerm& perms) | |
10554 | { | |
10555 | /* Since the only thing this does is wrap a call to statfs, and | |
10556 | statfs takes a lock, it doesn't seem we have a need to split it | |
10557 | out. */ | |
10558 | return statfs(0, stbuf, perms); | |
10559 | } | |
10560 | ||
e306af50 | 10561 | void Client::ll_register_callbacks(struct ceph_client_callback_args *args) |
7c673cae FG |
10562 | { |
10563 | if (!args) | |
10564 | return; | |
11fdf7f2 TL |
10565 | std::lock_guard l(client_lock); |
10566 | ldout(cct, 10) << __func__ << " cb " << args->handle | |
7c673cae FG |
10567 | << " invalidate_ino_cb " << args->ino_cb |
10568 | << " invalidate_dentry_cb " << args->dentry_cb | |
7c673cae FG |
10569 | << " switch_interrupt_cb " << args->switch_intr_cb |
10570 | << " remount_cb " << args->remount_cb | |
10571 | << dendl; | |
10572 | callback_handle = args->handle; | |
10573 | if (args->ino_cb) { | |
10574 | ino_invalidate_cb = args->ino_cb; | |
10575 | async_ino_invalidator.start(); | |
10576 | } | |
10577 | if (args->dentry_cb) { | |
10578 | dentry_invalidate_cb = args->dentry_cb; | |
10579 | async_dentry_invalidator.start(); | |
10580 | } | |
10581 | if (args->switch_intr_cb) { | |
10582 | switch_interrupt_cb = args->switch_intr_cb; | |
10583 | interrupt_finisher.start(); | |
10584 | } | |
10585 | if (args->remount_cb) { | |
10586 | remount_cb = args->remount_cb; | |
10587 | remount_finisher.start(); | |
10588 | } | |
e306af50 TL |
10589 | if (args->ino_release_cb) { |
10590 | ino_release_cb = args->ino_release_cb; | |
10591 | async_ino_releasor.start(); | |
10592 | } | |
10593 | if (args->umask_cb) | |
10594 | umask_cb = args->umask_cb; | |
7c673cae FG |
10595 | } |
10596 | ||
10597 | int Client::test_dentry_handling(bool can_invalidate) | |
10598 | { | |
10599 | int r = 0; | |
10600 | ||
10601 | can_invalidate_dentries = can_invalidate; | |
10602 | ||
10603 | if (can_invalidate_dentries) { | |
11fdf7f2 | 10604 | ceph_assert(dentry_invalidate_cb); |
7c673cae | 10605 | ldout(cct, 1) << "using dentry_invalidate_cb" << dendl; |
b32b8144 | 10606 | r = 0; |
11fdf7f2 TL |
10607 | } else { |
10608 | ceph_assert(remount_cb); | |
7c673cae | 10609 | ldout(cct, 1) << "using remount_cb" << dendl; |
91327a77 | 10610 | r = _do_remount(false); |
b32b8144 | 10611 | } |
11fdf7f2 | 10612 | |
7c673cae FG |
10613 | return r; |
10614 | } | |
10615 | ||
10616 | int Client::_sync_fs() | |
10617 | { | |
11fdf7f2 | 10618 | ldout(cct, 10) << __func__ << dendl; |
7c673cae FG |
10619 | |
10620 | // flush file data | |
11fdf7f2 TL |
10621 | std::unique_ptr<C_SaferCond> cond = nullptr; |
10622 | if (cct->_conf->client_oc) { | |
10623 | cond.reset(new C_SaferCond("Client::_sync_fs:lock")); | |
10624 | objectcacher->flush_all(cond.get()); | |
10625 | } | |
7c673cae FG |
10626 | |
10627 | // flush caps | |
10628 | flush_caps_sync(); | |
10629 | ceph_tid_t flush_tid = last_flush_tid; | |
10630 | ||
10631 | // wait for unsafe mds requests | |
10632 | wait_unsafe_requests(); | |
10633 | ||
10634 | wait_sync_caps(flush_tid); | |
10635 | ||
11fdf7f2 | 10636 | if (nullptr != cond) { |
9f95a23c | 10637 | client_lock.unlock(); |
11fdf7f2 TL |
10638 | ldout(cct, 15) << __func__ << " waiting on data to flush" << dendl; |
10639 | cond->wait(); | |
10640 | ldout(cct, 15) << __func__ << " flush finished" << dendl; | |
9f95a23c | 10641 | client_lock.lock(); |
7c673cae FG |
10642 | } |
10643 | ||
10644 | return 0; | |
10645 | } | |
10646 | ||
10647 | int Client::sync_fs() | |
10648 | { | |
11fdf7f2 | 10649 | std::lock_guard l(client_lock); |
181888fb FG |
10650 | |
10651 | if (unmounting) | |
10652 | return -ENOTCONN; | |
10653 | ||
7c673cae FG |
10654 | return _sync_fs(); |
10655 | } | |
10656 | ||
10657 | int64_t Client::drop_caches() | |
10658 | { | |
11fdf7f2 | 10659 | std::lock_guard l(client_lock); |
7c673cae FG |
10660 | return objectcacher->release_all(); |
10661 | } | |
10662 | ||
11fdf7f2 TL |
10663 | int Client::_lazyio(Fh *fh, int enable) |
10664 | { | |
10665 | Inode *in = fh->inode.get(); | |
10666 | ldout(cct, 20) << __func__ << " " << *in << " " << !!enable << dendl; | |
10667 | ||
10668 | if (!!(fh->mode & CEPH_FILE_MODE_LAZY) == !!enable) | |
10669 | return 0; | |
10670 | ||
10671 | int orig_mode = fh->mode; | |
10672 | if (enable) { | |
10673 | fh->mode |= CEPH_FILE_MODE_LAZY; | |
10674 | in->get_open_ref(fh->mode); | |
10675 | in->put_open_ref(orig_mode); | |
10676 | check_caps(in, CHECK_CAPS_NODELAY); | |
10677 | } else { | |
10678 | fh->mode &= ~CEPH_FILE_MODE_LAZY; | |
10679 | in->get_open_ref(fh->mode); | |
10680 | in->put_open_ref(orig_mode); | |
10681 | check_caps(in, 0); | |
10682 | } | |
10683 | ||
10684 | return 0; | |
10685 | } | |
10686 | ||
10687 | int Client::lazyio(int fd, int enable) | |
10688 | { | |
10689 | std::lock_guard l(client_lock); | |
10690 | Fh *f = get_filehandle(fd); | |
10691 | if (!f) | |
10692 | return -EBADF; | |
10693 | ||
10694 | return _lazyio(f, enable); | |
10695 | } | |
10696 | ||
10697 | int Client::ll_lazyio(Fh *fh, int enable) | |
10698 | { | |
10699 | std::lock_guard lock(client_lock); | |
10700 | ldout(cct, 3) << __func__ << " " << fh << " " << fh->inode->ino << " " << !!enable << dendl; | |
10701 | tout(cct) << __func__ << std::endl; | |
10702 | ||
10703 | return _lazyio(fh, enable); | |
10704 | } | |
7c673cae | 10705 | |
92f5a8d4 | 10706 | int Client::lazyio_propagate(int fd, loff_t offset, size_t count) |
7c673cae | 10707 | { |
11fdf7f2 | 10708 | std::lock_guard l(client_lock); |
92f5a8d4 | 10709 | ldout(cct, 3) << "op: client->lazyio_propagate(" << fd |
7c673cae FG |
10710 | << ", " << offset << ", " << count << ")" << dendl; |
10711 | ||
10712 | Fh *f = get_filehandle(fd); | |
10713 | if (!f) | |
10714 | return -EBADF; | |
10715 | ||
10716 | // for now | |
10717 | _fsync(f, true); | |
10718 | ||
10719 | return 0; | |
10720 | } | |
10721 | ||
10722 | int Client::lazyio_synchronize(int fd, loff_t offset, size_t count) | |
10723 | { | |
11fdf7f2 | 10724 | std::lock_guard l(client_lock); |
7c673cae FG |
10725 | ldout(cct, 3) << "op: client->lazyio_synchronize(" << fd |
10726 | << ", " << offset << ", " << count << ")" << dendl; | |
10727 | ||
10728 | Fh *f = get_filehandle(fd); | |
10729 | if (!f) | |
10730 | return -EBADF; | |
10731 | Inode *in = f->inode.get(); | |
10732 | ||
10733 | _fsync(f, true); | |
92f5a8d4 TL |
10734 | if (_release(in)) { |
10735 | int r =_getattr(in, CEPH_STAT_CAP_SIZE, f->actor_perms); | |
10736 | if (r < 0) | |
10737 | return r; | |
10738 | } | |
7c673cae FG |
10739 | return 0; |
10740 | } | |
10741 | ||
10742 | ||
10743 | // ============================= | |
10744 | // snaps | |
10745 | ||
10746 | int Client::mksnap(const char *relpath, const char *name, const UserPerm& perm) | |
10747 | { | |
11fdf7f2 | 10748 | std::lock_guard l(client_lock); |
181888fb FG |
10749 | |
10750 | if (unmounting) | |
10751 | return -ENOTCONN; | |
10752 | ||
7c673cae FG |
10753 | filepath path(relpath); |
10754 | InodeRef in; | |
10755 | int r = path_walk(path, &in, perm); | |
10756 | if (r < 0) | |
10757 | return r; | |
10758 | if (cct->_conf->client_permissions) { | |
10759 | r = may_create(in.get(), perm); | |
10760 | if (r < 0) | |
10761 | return r; | |
10762 | } | |
10763 | Inode *snapdir = open_snapdir(in.get()); | |
10764 | return _mkdir(snapdir, name, 0, perm); | |
10765 | } | |
181888fb | 10766 | |
7c673cae FG |
10767 | int Client::rmsnap(const char *relpath, const char *name, const UserPerm& perms) |
10768 | { | |
11fdf7f2 | 10769 | std::lock_guard l(client_lock); |
181888fb FG |
10770 | |
10771 | if (unmounting) | |
10772 | return -ENOTCONN; | |
10773 | ||
7c673cae FG |
10774 | filepath path(relpath); |
10775 | InodeRef in; | |
10776 | int r = path_walk(path, &in, perms); | |
10777 | if (r < 0) | |
10778 | return r; | |
10779 | if (cct->_conf->client_permissions) { | |
10780 | r = may_delete(in.get(), NULL, perms); | |
10781 | if (r < 0) | |
10782 | return r; | |
10783 | } | |
10784 | Inode *snapdir = open_snapdir(in.get()); | |
10785 | return _rmdir(snapdir, name, perms); | |
10786 | } | |
10787 | ||
10788 | // ============================= | |
10789 | // expose caps | |
10790 | ||
10791 | int Client::get_caps_issued(int fd) { | |
10792 | ||
11fdf7f2 | 10793 | std::lock_guard lock(client_lock); |
7c673cae | 10794 | |
181888fb FG |
10795 | if (unmounting) |
10796 | return -ENOTCONN; | |
10797 | ||
7c673cae FG |
10798 | Fh *f = get_filehandle(fd); |
10799 | if (!f) | |
10800 | return -EBADF; | |
10801 | ||
10802 | return f->inode->caps_issued(); | |
10803 | } | |
10804 | ||
10805 | int Client::get_caps_issued(const char *path, const UserPerm& perms) | |
10806 | { | |
11fdf7f2 | 10807 | std::lock_guard lock(client_lock); |
181888fb FG |
10808 | |
10809 | if (unmounting) | |
10810 | return -ENOTCONN; | |
10811 | ||
7c673cae FG |
10812 | filepath p(path); |
10813 | InodeRef in; | |
10814 | int r = path_walk(p, &in, perms, true); | |
10815 | if (r < 0) | |
10816 | return r; | |
10817 | return in->caps_issued(); | |
10818 | } | |
10819 | ||
10820 | // ========================================= | |
10821 | // low level | |
10822 | ||
10823 | Inode *Client::open_snapdir(Inode *diri) | |
10824 | { | |
10825 | Inode *in; | |
10826 | vinodeno_t vino(diri->ino, CEPH_SNAPDIR); | |
10827 | if (!inode_map.count(vino)) { | |
10828 | in = new Inode(this, vino, &diri->layout); | |
10829 | ||
10830 | in->ino = diri->ino; | |
10831 | in->snapid = CEPH_SNAPDIR; | |
10832 | in->mode = diri->mode; | |
10833 | in->uid = diri->uid; | |
10834 | in->gid = diri->gid; | |
494da23a | 10835 | in->nlink = 1; |
7c673cae FG |
10836 | in->mtime = diri->mtime; |
10837 | in->ctime = diri->ctime; | |
10838 | in->btime = diri->btime; | |
f6b5b4d7 | 10839 | in->atime = diri->atime; |
7c673cae FG |
10840 | in->size = diri->size; |
10841 | in->change_attr = diri->change_attr; | |
10842 | ||
10843 | in->dirfragtree.clear(); | |
10844 | in->snapdir_parent = diri; | |
10845 | diri->flags |= I_SNAPDIR_OPEN; | |
10846 | inode_map[vino] = in; | |
10847 | if (use_faked_inos()) | |
10848 | _assign_faked_ino(in); | |
10849 | ldout(cct, 10) << "open_snapdir created snapshot inode " << *in << dendl; | |
10850 | } else { | |
10851 | in = inode_map[vino]; | |
10852 | ldout(cct, 10) << "open_snapdir had snapshot inode " << *in << dendl; | |
10853 | } | |
10854 | return in; | |
10855 | } | |
10856 | ||
10857 | int Client::ll_lookup(Inode *parent, const char *name, struct stat *attr, | |
10858 | Inode **out, const UserPerm& perms) | |
10859 | { | |
11fdf7f2 | 10860 | std::lock_guard lock(client_lock); |
31f18b77 | 10861 | vinodeno_t vparent = _get_vino(parent); |
11fdf7f2 TL |
10862 | ldout(cct, 3) << __func__ << " " << vparent << " " << name << dendl; |
10863 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
10864 | tout(cct) << name << std::endl; |
10865 | ||
181888fb FG |
10866 | if (unmounting) |
10867 | return -ENOTCONN; | |
10868 | ||
7c673cae | 10869 | int r = 0; |
11fdf7f2 TL |
10870 | if (!fuse_default_permissions) { |
10871 | if (strcmp(name, ".") && strcmp(name, "..")) { | |
10872 | r = may_lookup(parent, perms); | |
10873 | if (r < 0) | |
10874 | return r; | |
10875 | } | |
7c673cae FG |
10876 | } |
10877 | ||
10878 | string dname(name); | |
10879 | InodeRef in; | |
10880 | ||
10881 | r = _lookup(parent, dname, CEPH_STAT_CAP_INODE_ALL, &in, perms); | |
10882 | if (r < 0) { | |
10883 | attr->st_ino = 0; | |
10884 | goto out; | |
10885 | } | |
10886 | ||
11fdf7f2 | 10887 | ceph_assert(in); |
7c673cae FG |
10888 | fill_stat(in, attr); |
10889 | _ll_get(in.get()); | |
10890 | ||
10891 | out: | |
11fdf7f2 | 10892 | ldout(cct, 3) << __func__ << " " << vparent << " " << name |
7c673cae FG |
10893 | << " -> " << r << " (" << hex << attr->st_ino << dec << ")" << dendl; |
10894 | tout(cct) << attr->st_ino << std::endl; | |
10895 | *out = in.get(); | |
10896 | return r; | |
10897 | } | |
10898 | ||
1adf2230 AA |
10899 | int Client::ll_lookup_inode( |
10900 | struct inodeno_t ino, | |
10901 | const UserPerm& perms, | |
10902 | Inode **inode) | |
10903 | { | |
81eedcae | 10904 | ceph_assert(inode != NULL); |
11fdf7f2 | 10905 | std::lock_guard lock(client_lock); |
1adf2230 AA |
10906 | ldout(cct, 3) << "ll_lookup_inode " << ino << dendl; |
10907 | ||
81eedcae TL |
10908 | if (unmounting) |
10909 | return -ENOTCONN; | |
10910 | ||
1adf2230 AA |
10911 | // Num1: get inode and *inode |
10912 | int r = _lookup_ino(ino, perms, inode); | |
81eedcae | 10913 | if (r) |
1adf2230 | 10914 | return r; |
81eedcae | 10915 | |
11fdf7f2 | 10916 | ceph_assert(*inode != NULL); |
1adf2230 | 10917 | |
81eedcae TL |
10918 | if (!(*inode)->dentries.empty()) { |
10919 | ldout(cct, 8) << __func__ << " dentry already present" << dendl; | |
10920 | return 0; | |
10921 | } | |
10922 | ||
10923 | if ((*inode)->is_root()) { | |
10924 | ldout(cct, 8) << "ino is root, no parent" << dendl; | |
10925 | return 0; | |
10926 | } | |
10927 | ||
1adf2230 AA |
10928 | // Num2: Request the parent inode, so that we can look up the name |
10929 | Inode *parent; | |
10930 | r = _lookup_parent(*inode, perms, &parent); | |
81eedcae | 10931 | if (r) { |
1adf2230 AA |
10932 | _ll_forget(*inode, 1); |
10933 | return r; | |
1adf2230 | 10934 | } |
81eedcae | 10935 | |
11fdf7f2 | 10936 | ceph_assert(parent != NULL); |
1adf2230 AA |
10937 | |
10938 | // Num3: Finally, get the name (dentry) of the requested inode | |
10939 | r = _lookup_name(*inode, parent, perms); | |
10940 | if (r) { | |
10941 | // Unexpected error | |
10942 | _ll_forget(parent, 1); | |
10943 | _ll_forget(*inode, 1); | |
10944 | return r; | |
10945 | } | |
10946 | ||
10947 | _ll_forget(parent, 1); | |
10948 | return 0; | |
10949 | } | |
10950 | ||
7c673cae FG |
10951 | int Client::ll_lookupx(Inode *parent, const char *name, Inode **out, |
10952 | struct ceph_statx *stx, unsigned want, unsigned flags, | |
10953 | const UserPerm& perms) | |
10954 | { | |
11fdf7f2 | 10955 | std::lock_guard lock(client_lock); |
31f18b77 | 10956 | vinodeno_t vparent = _get_vino(parent); |
11fdf7f2 | 10957 | ldout(cct, 3) << __func__ << " " << vparent << " " << name << dendl; |
7c673cae FG |
10958 | tout(cct) << "ll_lookupx" << std::endl; |
10959 | tout(cct) << name << std::endl; | |
10960 | ||
181888fb FG |
10961 | if (unmounting) |
10962 | return -ENOTCONN; | |
10963 | ||
7c673cae | 10964 | int r = 0; |
11fdf7f2 | 10965 | if (!fuse_default_permissions) { |
7c673cae FG |
10966 | r = may_lookup(parent, perms); |
10967 | if (r < 0) | |
10968 | return r; | |
10969 | } | |
10970 | ||
10971 | string dname(name); | |
10972 | InodeRef in; | |
10973 | ||
10974 | unsigned mask = statx_to_mask(flags, want); | |
10975 | r = _lookup(parent, dname, mask, &in, perms); | |
10976 | if (r < 0) { | |
10977 | stx->stx_ino = 0; | |
10978 | stx->stx_mask = 0; | |
10979 | } else { | |
11fdf7f2 | 10980 | ceph_assert(in); |
7c673cae FG |
10981 | fill_statx(in, mask, stx); |
10982 | _ll_get(in.get()); | |
10983 | } | |
10984 | ||
11fdf7f2 | 10985 | ldout(cct, 3) << __func__ << " " << vparent << " " << name |
7c673cae FG |
10986 | << " -> " << r << " (" << hex << stx->stx_ino << dec << ")" << dendl; |
10987 | tout(cct) << stx->stx_ino << std::endl; | |
10988 | *out = in.get(); | |
10989 | return r; | |
10990 | } | |
10991 | ||
10992 | int Client::ll_walk(const char* name, Inode **out, struct ceph_statx *stx, | |
10993 | unsigned int want, unsigned int flags, const UserPerm& perms) | |
10994 | { | |
11fdf7f2 | 10995 | std::lock_guard lock(client_lock); |
181888fb FG |
10996 | |
10997 | if (unmounting) | |
10998 | return -ENOTCONN; | |
10999 | ||
7c673cae FG |
11000 | filepath fp(name, 0); |
11001 | InodeRef in; | |
11002 | int rc; | |
11003 | unsigned mask = statx_to_mask(flags, want); | |
11004 | ||
11fdf7f2 TL |
11005 | ldout(cct, 3) << __func__ << " " << name << dendl; |
11006 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
11007 | tout(cct) << name << std::endl; |
11008 | ||
11009 | rc = path_walk(fp, &in, perms, !(flags & AT_SYMLINK_NOFOLLOW), mask); | |
11010 | if (rc < 0) { | |
11011 | /* zero out mask, just in case... */ | |
11012 | stx->stx_mask = 0; | |
11013 | stx->stx_ino = 0; | |
11014 | *out = NULL; | |
11015 | return rc; | |
11016 | } else { | |
11fdf7f2 | 11017 | ceph_assert(in); |
7c673cae FG |
11018 | fill_statx(in, mask, stx); |
11019 | _ll_get(in.get()); | |
11020 | *out = in.get(); | |
11021 | return 0; | |
11022 | } | |
11023 | } | |
11024 | ||
11025 | void Client::_ll_get(Inode *in) | |
11026 | { | |
11027 | if (in->ll_ref == 0) { | |
11028 | in->get(); | |
11fdf7f2 TL |
11029 | if (in->is_dir() && !in->dentries.empty()) { |
11030 | ceph_assert(in->dentries.size() == 1); // dirs can't be hard-linked | |
7c673cae FG |
11031 | in->get_first_parent()->get(); // pin dentry |
11032 | } | |
11fdf7f2 TL |
11033 | if (in->snapid != CEPH_NOSNAP) |
11034 | ll_snap_ref[in->snapid]++; | |
7c673cae FG |
11035 | } |
11036 | in->ll_get(); | |
11fdf7f2 | 11037 | ldout(cct, 20) << __func__ << " " << in << " " << in->ino << " -> " << in->ll_ref << dendl; |
7c673cae FG |
11038 | } |
11039 | ||
494da23a | 11040 | int Client::_ll_put(Inode *in, uint64_t num) |
7c673cae FG |
11041 | { |
11042 | in->ll_put(num); | |
11fdf7f2 | 11043 | ldout(cct, 20) << __func__ << " " << in << " " << in->ino << " " << num << " -> " << in->ll_ref << dendl; |
7c673cae | 11044 | if (in->ll_ref == 0) { |
11fdf7f2 TL |
11045 | if (in->is_dir() && !in->dentries.empty()) { |
11046 | ceph_assert(in->dentries.size() == 1); // dirs can't be hard-linked | |
7c673cae FG |
11047 | in->get_first_parent()->put(); // unpin dentry |
11048 | } | |
11fdf7f2 TL |
11049 | if (in->snapid != CEPH_NOSNAP) { |
11050 | auto p = ll_snap_ref.find(in->snapid); | |
11051 | ceph_assert(p != ll_snap_ref.end()); | |
11052 | ceph_assert(p->second > 0); | |
11053 | if (--p->second == 0) | |
11054 | ll_snap_ref.erase(p); | |
11055 | } | |
7c673cae FG |
11056 | put_inode(in); |
11057 | return 0; | |
11058 | } else { | |
11059 | return in->ll_ref; | |
11060 | } | |
11061 | } | |
11062 | ||
11063 | void Client::_ll_drop_pins() | |
11064 | { | |
11fdf7f2 | 11065 | ldout(cct, 10) << __func__ << dendl; |
1adf2230 | 11066 | std::set<InodeRef> to_be_put; //this set will be deconstructed item by item when exit |
7c673cae FG |
11067 | ceph::unordered_map<vinodeno_t, Inode*>::iterator next; |
11068 | for (ceph::unordered_map<vinodeno_t, Inode*>::iterator it = inode_map.begin(); | |
11069 | it != inode_map.end(); | |
11070 | it = next) { | |
11071 | Inode *in = it->second; | |
11072 | next = it; | |
11073 | ++next; | |
1adf2230 AA |
11074 | if (in->ll_ref){ |
11075 | to_be_put.insert(in); | |
7c673cae | 11076 | _ll_put(in, in->ll_ref); |
1adf2230 | 11077 | } |
7c673cae FG |
11078 | } |
11079 | } | |
11080 | ||
494da23a | 11081 | bool Client::_ll_forget(Inode *in, uint64_t count) |
7c673cae | 11082 | { |
11fdf7f2 | 11083 | inodeno_t ino = in->ino; |
7c673cae | 11084 | |
11fdf7f2 TL |
11085 | ldout(cct, 8) << __func__ << " " << ino << " " << count << dendl; |
11086 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
11087 | tout(cct) << ino.val << std::endl; |
11088 | tout(cct) << count << std::endl; | |
11089 | ||
181888fb FG |
11090 | // Ignore forget if we're no longer mounted |
11091 | if (unmounting) | |
11092 | return true; | |
11093 | ||
7c673cae FG |
11094 | if (ino == 1) return true; // ignore forget on root. |
11095 | ||
11096 | bool last = false; | |
11097 | if (in->ll_ref < count) { | |
11098 | ldout(cct, 1) << "WARNING: ll_forget on " << ino << " " << count | |
11099 | << ", which only has ll_ref=" << in->ll_ref << dendl; | |
11100 | _ll_put(in, in->ll_ref); | |
11101 | last = true; | |
11102 | } else { | |
11103 | if (_ll_put(in, count) == 0) | |
11104 | last = true; | |
11105 | } | |
11106 | ||
11107 | return last; | |
11108 | } | |
11109 | ||
494da23a | 11110 | bool Client::ll_forget(Inode *in, uint64_t count) |
1adf2230 | 11111 | { |
11fdf7f2 | 11112 | std::lock_guard lock(client_lock); |
1adf2230 AA |
11113 | return _ll_forget(in, count); |
11114 | } | |
11115 | ||
7c673cae FG |
11116 | bool Client::ll_put(Inode *in) |
11117 | { | |
11118 | /* ll_forget already takes the lock */ | |
11119 | return ll_forget(in, 1); | |
11120 | } | |
11121 | ||
11fdf7f2 TL |
11122 | int Client::ll_get_snap_ref(snapid_t snap) |
11123 | { | |
11124 | std::lock_guard lock(client_lock); | |
11125 | auto p = ll_snap_ref.find(snap); | |
11126 | if (p != ll_snap_ref.end()) | |
11127 | return p->second; | |
11128 | return 0; | |
11129 | } | |
11130 | ||
7c673cae FG |
11131 | snapid_t Client::ll_get_snapid(Inode *in) |
11132 | { | |
11fdf7f2 | 11133 | std::lock_guard lock(client_lock); |
7c673cae FG |
11134 | return in->snapid; |
11135 | } | |
11136 | ||
11137 | Inode *Client::ll_get_inode(ino_t ino) | |
11138 | { | |
11fdf7f2 | 11139 | std::lock_guard lock(client_lock); |
181888fb FG |
11140 | |
11141 | if (unmounting) | |
11142 | return NULL; | |
11143 | ||
7c673cae FG |
11144 | vinodeno_t vino = _map_faked_ino(ino); |
11145 | unordered_map<vinodeno_t,Inode*>::iterator p = inode_map.find(vino); | |
11146 | if (p == inode_map.end()) | |
11147 | return NULL; | |
11148 | Inode *in = p->second; | |
11149 | _ll_get(in); | |
11150 | return in; | |
11151 | } | |
11152 | ||
11153 | Inode *Client::ll_get_inode(vinodeno_t vino) | |
11154 | { | |
11fdf7f2 | 11155 | std::lock_guard lock(client_lock); |
181888fb FG |
11156 | |
11157 | if (unmounting) | |
11158 | return NULL; | |
11159 | ||
7c673cae FG |
11160 | unordered_map<vinodeno_t,Inode*>::iterator p = inode_map.find(vino); |
11161 | if (p == inode_map.end()) | |
11162 | return NULL; | |
11163 | Inode *in = p->second; | |
11164 | _ll_get(in); | |
11165 | return in; | |
11166 | } | |
11167 | ||
11168 | int Client::_ll_getattr(Inode *in, int caps, const UserPerm& perms) | |
11169 | { | |
11170 | vinodeno_t vino = _get_vino(in); | |
11171 | ||
11fdf7f2 TL |
11172 | ldout(cct, 8) << __func__ << " " << vino << dendl; |
11173 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
11174 | tout(cct) << vino.ino.val << std::endl; |
11175 | ||
11176 | if (vino.snapid < CEPH_NOSNAP) | |
11177 | return 0; | |
11178 | else | |
11179 | return _getattr(in, caps, perms); | |
11180 | } | |
11181 | ||
11182 | int Client::ll_getattr(Inode *in, struct stat *attr, const UserPerm& perms) | |
11183 | { | |
11fdf7f2 | 11184 | std::lock_guard lock(client_lock); |
7c673cae | 11185 | |
181888fb FG |
11186 | if (unmounting) |
11187 | return -ENOTCONN; | |
11188 | ||
7c673cae FG |
11189 | int res = _ll_getattr(in, CEPH_STAT_CAP_INODE_ALL, perms); |
11190 | ||
11191 | if (res == 0) | |
11192 | fill_stat(in, attr); | |
11fdf7f2 | 11193 | ldout(cct, 3) << __func__ << " " << _get_vino(in) << " = " << res << dendl; |
7c673cae FG |
11194 | return res; |
11195 | } | |
11196 | ||
11197 | int Client::ll_getattrx(Inode *in, struct ceph_statx *stx, unsigned int want, | |
11198 | unsigned int flags, const UserPerm& perms) | |
11199 | { | |
11fdf7f2 | 11200 | std::lock_guard lock(client_lock); |
7c673cae | 11201 | |
181888fb FG |
11202 | if (unmounting) |
11203 | return -ENOTCONN; | |
11204 | ||
7c673cae FG |
11205 | int res = 0; |
11206 | unsigned mask = statx_to_mask(flags, want); | |
11207 | ||
94b18763 | 11208 | if (mask && !in->caps_issued_mask(mask, true)) |
7c673cae FG |
11209 | res = _ll_getattr(in, mask, perms); |
11210 | ||
11211 | if (res == 0) | |
11212 | fill_statx(in, mask, stx); | |
11fdf7f2 | 11213 | ldout(cct, 3) << __func__ << " " << _get_vino(in) << " = " << res << dendl; |
7c673cae FG |
11214 | return res; |
11215 | } | |
11216 | ||
11217 | int Client::_ll_setattrx(Inode *in, struct ceph_statx *stx, int mask, | |
11218 | const UserPerm& perms, InodeRef *inp) | |
11219 | { | |
11220 | vinodeno_t vino = _get_vino(in); | |
11221 | ||
11fdf7f2 | 11222 | ldout(cct, 8) << __func__ << " " << vino << " mask " << hex << mask << dec |
7c673cae | 11223 | << dendl; |
11fdf7f2 | 11224 | tout(cct) << __func__ << std::endl; |
7c673cae FG |
11225 | tout(cct) << vino.ino.val << std::endl; |
11226 | tout(cct) << stx->stx_mode << std::endl; | |
11227 | tout(cct) << stx->stx_uid << std::endl; | |
11228 | tout(cct) << stx->stx_gid << std::endl; | |
11229 | tout(cct) << stx->stx_size << std::endl; | |
11230 | tout(cct) << stx->stx_mtime << std::endl; | |
11231 | tout(cct) << stx->stx_atime << std::endl; | |
11232 | tout(cct) << stx->stx_btime << std::endl; | |
11233 | tout(cct) << mask << std::endl; | |
11234 | ||
11fdf7f2 | 11235 | if (!fuse_default_permissions) { |
7c673cae FG |
11236 | int res = may_setattr(in, stx, mask, perms); |
11237 | if (res < 0) | |
11238 | return res; | |
11239 | } | |
11240 | ||
11241 | mask &= ~(CEPH_SETATTR_MTIME_NOW | CEPH_SETATTR_ATIME_NOW); | |
11242 | ||
11243 | return __setattrx(in, stx, mask, perms, inp); | |
11244 | } | |
11245 | ||
11246 | int Client::ll_setattrx(Inode *in, struct ceph_statx *stx, int mask, | |
11247 | const UserPerm& perms) | |
11248 | { | |
11fdf7f2 | 11249 | std::lock_guard lock(client_lock); |
181888fb FG |
11250 | |
11251 | if (unmounting) | |
11252 | return -ENOTCONN; | |
11253 | ||
7c673cae FG |
11254 | InodeRef target(in); |
11255 | int res = _ll_setattrx(in, stx, mask, perms, &target); | |
11256 | if (res == 0) { | |
11fdf7f2 | 11257 | ceph_assert(in == target.get()); |
7c673cae FG |
11258 | fill_statx(in, in->caps_issued(), stx); |
11259 | } | |
11260 | ||
11fdf7f2 | 11261 | ldout(cct, 3) << __func__ << " " << _get_vino(in) << " = " << res << dendl; |
7c673cae FG |
11262 | return res; |
11263 | } | |
11264 | ||
11265 | int Client::ll_setattr(Inode *in, struct stat *attr, int mask, | |
11266 | const UserPerm& perms) | |
11267 | { | |
11268 | struct ceph_statx stx; | |
11269 | stat_to_statx(attr, &stx); | |
11270 | ||
11fdf7f2 | 11271 | std::lock_guard lock(client_lock); |
181888fb FG |
11272 | |
11273 | if (unmounting) | |
11274 | return -ENOTCONN; | |
11275 | ||
7c673cae FG |
11276 | InodeRef target(in); |
11277 | int res = _ll_setattrx(in, &stx, mask, perms, &target); | |
11278 | if (res == 0) { | |
11fdf7f2 | 11279 | ceph_assert(in == target.get()); |
7c673cae FG |
11280 | fill_stat(in, attr); |
11281 | } | |
11282 | ||
11fdf7f2 | 11283 | ldout(cct, 3) << __func__ << " " << _get_vino(in) << " = " << res << dendl; |
7c673cae FG |
11284 | return res; |
11285 | } | |
11286 | ||
11287 | ||
11288 | // ---------- | |
11289 | // xattrs | |
11290 | ||
11291 | int Client::getxattr(const char *path, const char *name, void *value, size_t size, | |
11292 | const UserPerm& perms) | |
11293 | { | |
11fdf7f2 | 11294 | std::lock_guard lock(client_lock); |
181888fb FG |
11295 | |
11296 | if (unmounting) | |
11297 | return -ENOTCONN; | |
11298 | ||
7c673cae FG |
11299 | InodeRef in; |
11300 | int r = Client::path_walk(path, &in, perms, true, CEPH_STAT_CAP_XATTR); | |
11301 | if (r < 0) | |
11302 | return r; | |
11303 | return _getxattr(in, name, value, size, perms); | |
11304 | } | |
11305 | ||
11306 | int Client::lgetxattr(const char *path, const char *name, void *value, size_t size, | |
11307 | const UserPerm& perms) | |
11308 | { | |
11fdf7f2 | 11309 | std::lock_guard lock(client_lock); |
181888fb FG |
11310 | |
11311 | if (unmounting) | |
11312 | return -ENOTCONN; | |
11313 | ||
7c673cae FG |
11314 | InodeRef in; |
11315 | int r = Client::path_walk(path, &in, perms, false, CEPH_STAT_CAP_XATTR); | |
11316 | if (r < 0) | |
11317 | return r; | |
11318 | return _getxattr(in, name, value, size, perms); | |
11319 | } | |
11320 | ||
11321 | int Client::fgetxattr(int fd, const char *name, void *value, size_t size, | |
11322 | const UserPerm& perms) | |
11323 | { | |
11fdf7f2 | 11324 | std::lock_guard lock(client_lock); |
181888fb FG |
11325 | |
11326 | if (unmounting) | |
11327 | return -ENOTCONN; | |
11328 | ||
7c673cae FG |
11329 | Fh *f = get_filehandle(fd); |
11330 | if (!f) | |
11331 | return -EBADF; | |
11332 | return _getxattr(f->inode, name, value, size, perms); | |
11333 | } | |
11334 | ||
11335 | int Client::listxattr(const char *path, char *list, size_t size, | |
11336 | const UserPerm& perms) | |
11337 | { | |
11fdf7f2 | 11338 | std::lock_guard lock(client_lock); |
181888fb FG |
11339 | |
11340 | if (unmounting) | |
11341 | return -ENOTCONN; | |
11342 | ||
7c673cae FG |
11343 | InodeRef in; |
11344 | int r = Client::path_walk(path, &in, perms, true, CEPH_STAT_CAP_XATTR); | |
11345 | if (r < 0) | |
11346 | return r; | |
11347 | return Client::_listxattr(in.get(), list, size, perms); | |
11348 | } | |
11349 | ||
11350 | int Client::llistxattr(const char *path, char *list, size_t size, | |
11351 | const UserPerm& perms) | |
11352 | { | |
11fdf7f2 | 11353 | std::lock_guard lock(client_lock); |
181888fb FG |
11354 | |
11355 | if (unmounting) | |
11356 | return -ENOTCONN; | |
11357 | ||
7c673cae FG |
11358 | InodeRef in; |
11359 | int r = Client::path_walk(path, &in, perms, false, CEPH_STAT_CAP_XATTR); | |
11360 | if (r < 0) | |
11361 | return r; | |
11362 | return Client::_listxattr(in.get(), list, size, perms); | |
11363 | } | |
11364 | ||
11365 | int Client::flistxattr(int fd, char *list, size_t size, const UserPerm& perms) | |
11366 | { | |
11fdf7f2 | 11367 | std::lock_guard lock(client_lock); |
181888fb FG |
11368 | |
11369 | if (unmounting) | |
11370 | return -ENOTCONN; | |
11371 | ||
7c673cae FG |
11372 | Fh *f = get_filehandle(fd); |
11373 | if (!f) | |
11374 | return -EBADF; | |
11375 | return Client::_listxattr(f->inode.get(), list, size, perms); | |
11376 | } | |
11377 | ||
11378 | int Client::removexattr(const char *path, const char *name, | |
11379 | const UserPerm& perms) | |
11380 | { | |
11fdf7f2 | 11381 | std::lock_guard lock(client_lock); |
181888fb FG |
11382 | |
11383 | if (unmounting) | |
11384 | return -ENOTCONN; | |
11385 | ||
7c673cae FG |
11386 | InodeRef in; |
11387 | int r = Client::path_walk(path, &in, perms, true); | |
11388 | if (r < 0) | |
11389 | return r; | |
11390 | return _removexattr(in, name, perms); | |
11391 | } | |
11392 | ||
11393 | int Client::lremovexattr(const char *path, const char *name, | |
11394 | const UserPerm& perms) | |
11395 | { | |
11fdf7f2 | 11396 | std::lock_guard lock(client_lock); |
181888fb FG |
11397 | |
11398 | if (unmounting) | |
11399 | return -ENOTCONN; | |
11400 | ||
7c673cae FG |
11401 | InodeRef in; |
11402 | int r = Client::path_walk(path, &in, perms, false); | |
11403 | if (r < 0) | |
11404 | return r; | |
11405 | return _removexattr(in, name, perms); | |
11406 | } | |
11407 | ||
11408 | int Client::fremovexattr(int fd, const char *name, const UserPerm& perms) | |
11409 | { | |
11fdf7f2 | 11410 | std::lock_guard lock(client_lock); |
181888fb FG |
11411 | |
11412 | if (unmounting) | |
11413 | return -ENOTCONN; | |
11414 | ||
7c673cae FG |
11415 | Fh *f = get_filehandle(fd); |
11416 | if (!f) | |
11417 | return -EBADF; | |
11418 | return _removexattr(f->inode, name, perms); | |
11419 | } | |
11420 | ||
11421 | int Client::setxattr(const char *path, const char *name, const void *value, | |
11422 | size_t size, int flags, const UserPerm& perms) | |
11423 | { | |
11424 | _setxattr_maybe_wait_for_osdmap(name, value, size); | |
11425 | ||
11fdf7f2 | 11426 | std::lock_guard lock(client_lock); |
181888fb FG |
11427 | |
11428 | if (unmounting) | |
11429 | return -ENOTCONN; | |
11430 | ||
7c673cae FG |
11431 | InodeRef in; |
11432 | int r = Client::path_walk(path, &in, perms, true); | |
11433 | if (r < 0) | |
11434 | return r; | |
11435 | return _setxattr(in, name, value, size, flags, perms); | |
11436 | } | |
11437 | ||
11438 | int Client::lsetxattr(const char *path, const char *name, const void *value, | |
11439 | size_t size, int flags, const UserPerm& perms) | |
11440 | { | |
11441 | _setxattr_maybe_wait_for_osdmap(name, value, size); | |
11442 | ||
11fdf7f2 | 11443 | std::lock_guard lock(client_lock); |
181888fb FG |
11444 | |
11445 | if (unmounting) | |
11446 | return -ENOTCONN; | |
11447 | ||
7c673cae FG |
11448 | InodeRef in; |
11449 | int r = Client::path_walk(path, &in, perms, false); | |
11450 | if (r < 0) | |
11451 | return r; | |
11452 | return _setxattr(in, name, value, size, flags, perms); | |
11453 | } | |
11454 | ||
11455 | int Client::fsetxattr(int fd, const char *name, const void *value, size_t size, | |
11456 | int flags, const UserPerm& perms) | |
11457 | { | |
11458 | _setxattr_maybe_wait_for_osdmap(name, value, size); | |
11459 | ||
11fdf7f2 | 11460 | std::lock_guard lock(client_lock); |
181888fb FG |
11461 | |
11462 | if (unmounting) | |
11463 | return -ENOTCONN; | |
11464 | ||
7c673cae FG |
11465 | Fh *f = get_filehandle(fd); |
11466 | if (!f) | |
11467 | return -EBADF; | |
11468 | return _setxattr(f->inode, name, value, size, flags, perms); | |
11469 | } | |
11470 | ||
11471 | int Client::_getxattr(Inode *in, const char *name, void *value, size_t size, | |
11472 | const UserPerm& perms) | |
11473 | { | |
11474 | int r; | |
11475 | ||
11476 | const VXattr *vxattr = _match_vxattr(in, name); | |
11477 | if (vxattr) { | |
11478 | r = -ENODATA; | |
11479 | ||
11480 | // Do a force getattr to get the latest quota before returning | |
11481 | // a value to userspace. | |
28e407b8 AA |
11482 | int flags = 0; |
11483 | if (vxattr->flags & VXATTR_RSTAT) { | |
11484 | flags |= CEPH_STAT_RSTAT; | |
11485 | } | |
adb31ebb TL |
11486 | if (vxattr->flags & VXATTR_DIRSTAT) { |
11487 | flags |= CEPH_CAP_FILE_SHARED; | |
11488 | } | |
28e407b8 | 11489 | r = _getattr(in, flags, perms, true); |
7c673cae FG |
11490 | if (r != 0) { |
11491 | // Error from getattr! | |
11492 | return r; | |
11493 | } | |
11494 | ||
11495 | // call pointer-to-member function | |
11496 | char buf[256]; | |
11497 | if (!(vxattr->exists_cb && !(this->*(vxattr->exists_cb))(in))) { | |
11498 | r = (this->*(vxattr->getxattr_cb))(in, buf, sizeof(buf)); | |
11499 | } else { | |
11500 | r = -ENODATA; | |
11501 | } | |
11502 | ||
11503 | if (size != 0) { | |
11504 | if (r > (int)size) { | |
11505 | r = -ERANGE; | |
11506 | } else if (r > 0) { | |
11507 | memcpy(value, buf, r); | |
11508 | } | |
11509 | } | |
11510 | goto out; | |
11511 | } | |
11512 | ||
11513 | if (acl_type == NO_ACL && !strncmp(name, "system.", 7)) { | |
11514 | r = -EOPNOTSUPP; | |
11515 | goto out; | |
11516 | } | |
11517 | ||
11518 | r = _getattr(in, CEPH_STAT_CAP_XATTR, perms, in->xattr_version == 0); | |
11519 | if (r == 0) { | |
11520 | string n(name); | |
11521 | r = -ENODATA; | |
11522 | if (in->xattrs.count(n)) { | |
11523 | r = in->xattrs[n].length(); | |
11524 | if (r > 0 && size != 0) { | |
11525 | if (size >= (unsigned)r) | |
11526 | memcpy(value, in->xattrs[n].c_str(), r); | |
11527 | else | |
11528 | r = -ERANGE; | |
11529 | } | |
11530 | } | |
11531 | } | |
11532 | out: | |
1adf2230 | 11533 | ldout(cct, 8) << "_getxattr(" << in->ino << ", \"" << name << "\", " << size << ") = " << r << dendl; |
7c673cae FG |
11534 | return r; |
11535 | } | |
11536 | ||
11537 | int Client::_getxattr(InodeRef &in, const char *name, void *value, size_t size, | |
11538 | const UserPerm& perms) | |
11539 | { | |
11540 | if (cct->_conf->client_permissions) { | |
11541 | int r = xattr_permission(in.get(), name, MAY_READ, perms); | |
11542 | if (r < 0) | |
11543 | return r; | |
11544 | } | |
11545 | return _getxattr(in.get(), name, value, size, perms); | |
11546 | } | |
11547 | ||
11548 | int Client::ll_getxattr(Inode *in, const char *name, void *value, | |
11549 | size_t size, const UserPerm& perms) | |
11550 | { | |
11fdf7f2 | 11551 | std::lock_guard lock(client_lock); |
7c673cae | 11552 | |
181888fb FG |
11553 | if (unmounting) |
11554 | return -ENOTCONN; | |
11555 | ||
7c673cae FG |
11556 | vinodeno_t vino = _get_vino(in); |
11557 | ||
11fdf7f2 TL |
11558 | ldout(cct, 3) << __func__ << " " << vino << " " << name << " size " << size << dendl; |
11559 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
11560 | tout(cct) << vino.ino.val << std::endl; |
11561 | tout(cct) << name << std::endl; | |
11562 | ||
11fdf7f2 | 11563 | if (!fuse_default_permissions) { |
7c673cae FG |
11564 | int r = xattr_permission(in, name, MAY_READ, perms); |
11565 | if (r < 0) | |
11566 | return r; | |
11567 | } | |
11568 | ||
11569 | return _getxattr(in, name, value, size, perms); | |
11570 | } | |
11571 | ||
11572 | int Client::_listxattr(Inode *in, char *name, size_t size, | |
11573 | const UserPerm& perms) | |
11574 | { | |
81eedcae | 11575 | bool len_only = (size == 0); |
7c673cae | 11576 | int r = _getattr(in, CEPH_STAT_CAP_XATTR, perms, in->xattr_version == 0); |
81eedcae TL |
11577 | if (r != 0) { |
11578 | goto out; | |
11579 | } | |
7c673cae | 11580 | |
81eedcae TL |
11581 | r = 0; |
11582 | for (const auto& p : in->xattrs) { | |
11583 | size_t this_len = p.first.length() + 1; | |
11584 | r += this_len; | |
11585 | if (len_only) | |
11586 | continue; | |
7c673cae | 11587 | |
81eedcae TL |
11588 | if (this_len > size) { |
11589 | r = -ERANGE; | |
11590 | goto out; | |
11591 | } | |
11592 | ||
11593 | memcpy(name, p.first.c_str(), this_len); | |
11594 | name += this_len; | |
11595 | size -= this_len; | |
11596 | } | |
81eedcae | 11597 | out: |
11fdf7f2 | 11598 | ldout(cct, 8) << __func__ << "(" << in->ino << ", " << size << ") = " << r << dendl; |
7c673cae FG |
11599 | return r; |
11600 | } | |
11601 | ||
11602 | int Client::ll_listxattr(Inode *in, char *names, size_t size, | |
11603 | const UserPerm& perms) | |
11604 | { | |
11fdf7f2 | 11605 | std::lock_guard lock(client_lock); |
7c673cae | 11606 | |
181888fb FG |
11607 | if (unmounting) |
11608 | return -ENOTCONN; | |
11609 | ||
7c673cae FG |
11610 | vinodeno_t vino = _get_vino(in); |
11611 | ||
11fdf7f2 TL |
11612 | ldout(cct, 3) << __func__ << " " << vino << " size " << size << dendl; |
11613 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
11614 | tout(cct) << vino.ino.val << std::endl; |
11615 | tout(cct) << size << std::endl; | |
11616 | ||
11617 | return _listxattr(in, names, size, perms); | |
11618 | } | |
11619 | ||
11620 | int Client::_do_setxattr(Inode *in, const char *name, const void *value, | |
11621 | size_t size, int flags, const UserPerm& perms) | |
11622 | { | |
11623 | ||
11624 | int xattr_flags = 0; | |
11625 | if (!value) | |
11626 | xattr_flags |= CEPH_XATTR_REMOVE; | |
11627 | if (flags & XATTR_CREATE) | |
11628 | xattr_flags |= CEPH_XATTR_CREATE; | |
11629 | if (flags & XATTR_REPLACE) | |
11630 | xattr_flags |= CEPH_XATTR_REPLACE; | |
11631 | ||
11632 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_SETXATTR); | |
11633 | filepath path; | |
11634 | in->make_nosnap_relative_path(path); | |
11635 | req->set_filepath(path); | |
11636 | req->set_string2(name); | |
11637 | req->set_inode(in); | |
11638 | req->head.args.setxattr.flags = xattr_flags; | |
11639 | ||
11640 | bufferlist bl; | |
11fdf7f2 | 11641 | assert (value || size == 0); |
7c673cae FG |
11642 | bl.append((const char*)value, size); |
11643 | req->set_data(bl); | |
11644 | ||
11645 | int res = make_request(req, perms); | |
11646 | ||
11647 | trim_cache(); | |
11fdf7f2 | 11648 | ldout(cct, 3) << __func__ << "(" << in->ino << ", \"" << name << "\") = " << |
7c673cae FG |
11649 | res << dendl; |
11650 | return res; | |
11651 | } | |
11652 | ||
11653 | int Client::_setxattr(Inode *in, const char *name, const void *value, | |
11654 | size_t size, int flags, const UserPerm& perms) | |
11655 | { | |
11656 | if (in->snapid != CEPH_NOSNAP) { | |
11657 | return -EROFS; | |
11658 | } | |
11659 | ||
f6b5b4d7 TL |
11660 | if (size == 0) { |
11661 | value = ""; | |
11662 | } else if (value == NULL) { | |
11663 | return -EINVAL; | |
11664 | } | |
11665 | ||
7c673cae FG |
11666 | bool posix_acl_xattr = false; |
11667 | if (acl_type == POSIX_ACL) | |
11668 | posix_acl_xattr = !strncmp(name, "system.", 7); | |
11669 | ||
11670 | if (strncmp(name, "user.", 5) && | |
11671 | strncmp(name, "security.", 9) && | |
11672 | strncmp(name, "trusted.", 8) && | |
11673 | strncmp(name, "ceph.", 5) && | |
11674 | !posix_acl_xattr) | |
11675 | return -EOPNOTSUPP; | |
11676 | ||
11fdf7f2 TL |
11677 | bool check_realm = false; |
11678 | ||
7c673cae FG |
11679 | if (posix_acl_xattr) { |
11680 | if (!strcmp(name, ACL_EA_ACCESS)) { | |
11681 | mode_t new_mode = in->mode; | |
11682 | if (value) { | |
11683 | int ret = posix_acl_equiv_mode(value, size, &new_mode); | |
11684 | if (ret < 0) | |
11685 | return ret; | |
11686 | if (ret == 0) { | |
11687 | value = NULL; | |
11688 | size = 0; | |
11689 | } | |
11690 | if (new_mode != in->mode) { | |
11691 | struct ceph_statx stx; | |
11692 | stx.stx_mode = new_mode; | |
11693 | ret = _do_setattr(in, &stx, CEPH_SETATTR_MODE, perms, NULL); | |
11694 | if (ret < 0) | |
11695 | return ret; | |
11696 | } | |
11697 | } | |
11698 | } else if (!strcmp(name, ACL_EA_DEFAULT)) { | |
11699 | if (value) { | |
11700 | if (!S_ISDIR(in->mode)) | |
11701 | return -EACCES; | |
11702 | int ret = posix_acl_check(value, size); | |
11703 | if (ret < 0) | |
11704 | return -EINVAL; | |
11705 | if (ret == 0) { | |
11706 | value = NULL; | |
11707 | size = 0; | |
11708 | } | |
11709 | } | |
11710 | } else { | |
11711 | return -EOPNOTSUPP; | |
11712 | } | |
11713 | } else { | |
11714 | const VXattr *vxattr = _match_vxattr(in, name); | |
11fdf7f2 TL |
11715 | if (vxattr) { |
11716 | if (vxattr->readonly) | |
11717 | return -EOPNOTSUPP; | |
11718 | if (vxattr->name.compare(0, 10, "ceph.quota") == 0 && value) | |
11719 | check_realm = true; | |
11720 | } | |
7c673cae FG |
11721 | } |
11722 | ||
11fdf7f2 TL |
11723 | int ret = _do_setxattr(in, name, value, size, flags, perms); |
11724 | if (ret >= 0 && check_realm) { | |
11725 | // check if snaprealm was created for quota inode | |
11726 | if (in->quota.is_enable() && | |
11727 | !(in->snaprealm && in->snaprealm->ino == in->ino)) | |
11728 | ret = -EOPNOTSUPP; | |
11729 | } | |
11730 | ||
11731 | return ret; | |
7c673cae FG |
11732 | } |
11733 | ||
11734 | int Client::_setxattr(InodeRef &in, const char *name, const void *value, | |
11735 | size_t size, int flags, const UserPerm& perms) | |
11736 | { | |
11737 | if (cct->_conf->client_permissions) { | |
11738 | int r = xattr_permission(in.get(), name, MAY_WRITE, perms); | |
11739 | if (r < 0) | |
11740 | return r; | |
11741 | } | |
11742 | return _setxattr(in.get(), name, value, size, flags, perms); | |
11743 | } | |
11744 | ||
11745 | int Client::_setxattr_check_data_pool(string& name, string& value, const OSDMap *osdmap) | |
11746 | { | |
11747 | string tmp; | |
11748 | if (name == "layout") { | |
11749 | string::iterator begin = value.begin(); | |
11750 | string::iterator end = value.end(); | |
11751 | keys_and_values<string::iterator> p; // create instance of parser | |
11752 | std::map<string, string> m; // map to receive results | |
11753 | if (!qi::parse(begin, end, p, m)) { // returns true if successful | |
11754 | return -EINVAL; | |
11755 | } | |
11756 | if (begin != end) | |
11757 | return -EINVAL; | |
11758 | for (map<string,string>::iterator q = m.begin(); q != m.end(); ++q) { | |
11759 | if (q->first == "pool") { | |
11760 | tmp = q->second; | |
11761 | break; | |
11762 | } | |
11763 | } | |
11764 | } else if (name == "layout.pool") { | |
11765 | tmp = value; | |
11766 | } | |
11767 | ||
11768 | if (tmp.length()) { | |
11769 | int64_t pool; | |
11770 | try { | |
11771 | pool = boost::lexical_cast<unsigned>(tmp); | |
11772 | if (!osdmap->have_pg_pool(pool)) | |
11773 | return -ENOENT; | |
11774 | } catch (boost::bad_lexical_cast const&) { | |
11775 | pool = osdmap->lookup_pg_pool_name(tmp); | |
11776 | if (pool < 0) { | |
11777 | return -ENOENT; | |
11778 | } | |
11779 | } | |
11780 | } | |
11781 | ||
11782 | return 0; | |
11783 | } | |
11784 | ||
11785 | void Client::_setxattr_maybe_wait_for_osdmap(const char *name, const void *value, size_t size) | |
11786 | { | |
11787 | // For setting pool of layout, MetaRequest need osdmap epoch. | |
11788 | // There is a race which create a new data pool but client and mds both don't have. | |
11789 | // Make client got the latest osdmap which make mds quickly judge whether get newer osdmap. | |
11790 | if (strcmp(name, "ceph.file.layout.pool") == 0 || strcmp(name, "ceph.dir.layout.pool") == 0 || | |
11791 | strcmp(name, "ceph.file.layout") == 0 || strcmp(name, "ceph.dir.layout") == 0) { | |
11792 | string rest(strstr(name, "layout")); | |
11793 | string v((const char*)value, size); | |
11794 | int r = objecter->with_osdmap([&](const OSDMap& o) { | |
11795 | return _setxattr_check_data_pool(rest, v, &o); | |
11796 | }); | |
11797 | ||
11798 | if (r == -ENOENT) { | |
11799 | C_SaferCond ctx; | |
11800 | objecter->wait_for_latest_osdmap(&ctx); | |
11801 | ctx.wait(); | |
11802 | } | |
11803 | } | |
11804 | } | |
11805 | ||
11806 | int Client::ll_setxattr(Inode *in, const char *name, const void *value, | |
11807 | size_t size, int flags, const UserPerm& perms) | |
11808 | { | |
11809 | _setxattr_maybe_wait_for_osdmap(name, value, size); | |
11810 | ||
11fdf7f2 | 11811 | std::lock_guard lock(client_lock); |
7c673cae | 11812 | |
181888fb FG |
11813 | if (unmounting) |
11814 | return -ENOTCONN; | |
11815 | ||
7c673cae FG |
11816 | vinodeno_t vino = _get_vino(in); |
11817 | ||
11fdf7f2 TL |
11818 | ldout(cct, 3) << __func__ << " " << vino << " " << name << " size " << size << dendl; |
11819 | tout(cct) << __func__ << std::endl; | |
7c673cae FG |
11820 | tout(cct) << vino.ino.val << std::endl; |
11821 | tout(cct) << name << std::endl; | |
11822 | ||
11fdf7f2 | 11823 | if (!fuse_default_permissions) { |
7c673cae FG |
11824 | int r = xattr_permission(in, name, MAY_WRITE, perms); |
11825 | if (r < 0) | |
11826 | return r; | |
11827 | } | |
11828 | return _setxattr(in, name, value, size, flags, perms); | |
11829 | } | |
11830 | ||
11831 | int Client::_removexattr(Inode *in, const char *name, const UserPerm& perms) | |
11832 | { | |
11833 | if (in->snapid != CEPH_NOSNAP) { | |
11834 | return -EROFS; | |
11835 | } | |
11836 | ||
11837 | // same xattrs supported by kernel client | |
11838 | if (strncmp(name, "user.", 5) && | |
11839 | strncmp(name, "system.", 7) && | |
11840 | strncmp(name, "security.", 9) && | |
11841 | strncmp(name, "trusted.", 8) && | |
11842 | strncmp(name, "ceph.", 5)) | |
11843 | return -EOPNOTSUPP; | |
11844 | ||
11845 | const VXattr *vxattr = _match_vxattr(in, name); | |
11846 | if (vxattr && vxattr->readonly) | |
11847 | return -EOPNOTSUPP; | |
11848 | ||
11849 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_RMXATTR); | |
11850 | filepath path; | |
11851 | in->make_nosnap_relative_path(path); | |
11852 | req->set_filepath(path); | |
11853 | req->set_filepath2(name); | |
11854 | req->set_inode(in); | |
11855 | ||
11856 | int res = make_request(req, perms); | |
11857 | ||
11858 | trim_cache(); | |
1adf2230 | 11859 | ldout(cct, 8) << "_removexattr(" << in->ino << ", \"" << name << "\") = " << res << dendl; |
7c673cae FG |
11860 | return res; |
11861 | } | |
11862 | ||
11863 | int Client::_removexattr(InodeRef &in, const char *name, const UserPerm& perms) | |
11864 | { | |
11865 | if (cct->_conf->client_permissions) { | |
11866 | int r = xattr_permission(in.get(), name, MAY_WRITE, perms); | |
11867 | if (r < 0) | |
11868 | return r; | |
11869 | } | |
11870 | return _removexattr(in.get(), name, perms); | |
11871 | } | |
11872 | ||
11873 | int Client::ll_removexattr(Inode *in, const char *name, const UserPerm& perms) | |
11874 | { | |
11fdf7f2 | 11875 | std::lock_guard lock(client_lock); |
7c673cae | 11876 | |
181888fb FG |
11877 | if (unmounting) |
11878 | return -ENOTCONN; | |
11879 | ||
7c673cae FG |
11880 | vinodeno_t vino = _get_vino(in); |
11881 | ||
11882 | ldout(cct, 3) << "ll_removexattr " << vino << " " << name << dendl; | |
11883 | tout(cct) << "ll_removexattr" << std::endl; | |
11884 | tout(cct) << vino.ino.val << std::endl; | |
11885 | tout(cct) << name << std::endl; | |
11886 | ||
11fdf7f2 | 11887 | if (!fuse_default_permissions) { |
7c673cae FG |
11888 | int r = xattr_permission(in, name, MAY_WRITE, perms); |
11889 | if (r < 0) | |
11890 | return r; | |
11891 | } | |
11892 | ||
11893 | return _removexattr(in, name, perms); | |
11894 | } | |
11895 | ||
11896 | bool Client::_vxattrcb_quota_exists(Inode *in) | |
11897 | { | |
11fdf7f2 | 11898 | return in->quota.is_enable() && |
f6b5b4d7 TL |
11899 | (in->snapid != CEPH_NOSNAP || |
11900 | (in->snaprealm && in->snaprealm->ino == in->ino)); | |
7c673cae FG |
11901 | } |
11902 | size_t Client::_vxattrcb_quota(Inode *in, char *val, size_t size) | |
11903 | { | |
11904 | return snprintf(val, size, | |
11905 | "max_bytes=%lld max_files=%lld", | |
11906 | (long long int)in->quota.max_bytes, | |
11907 | (long long int)in->quota.max_files); | |
11908 | } | |
11909 | size_t Client::_vxattrcb_quota_max_bytes(Inode *in, char *val, size_t size) | |
11910 | { | |
11911 | return snprintf(val, size, "%lld", (long long int)in->quota.max_bytes); | |
11912 | } | |
11913 | size_t Client::_vxattrcb_quota_max_files(Inode *in, char *val, size_t size) | |
11914 | { | |
11915 | return snprintf(val, size, "%lld", (long long int)in->quota.max_files); | |
11916 | } | |
11917 | ||
11918 | bool Client::_vxattrcb_layout_exists(Inode *in) | |
11919 | { | |
11920 | return in->layout != file_layout_t(); | |
11921 | } | |
11922 | size_t Client::_vxattrcb_layout(Inode *in, char *val, size_t size) | |
11923 | { | |
11924 | int r = snprintf(val, size, | |
11fdf7f2 | 11925 | "stripe_unit=%llu stripe_count=%llu object_size=%llu pool=", |
7c673cae FG |
11926 | (unsigned long long)in->layout.stripe_unit, |
11927 | (unsigned long long)in->layout.stripe_count, | |
11928 | (unsigned long long)in->layout.object_size); | |
11929 | objecter->with_osdmap([&](const OSDMap& o) { | |
11930 | if (o.have_pg_pool(in->layout.pool_id)) | |
11931 | r += snprintf(val + r, size - r, "%s", | |
11932 | o.get_pool_name(in->layout.pool_id).c_str()); | |
11933 | else | |
11934 | r += snprintf(val + r, size - r, "%" PRIu64, | |
11935 | (uint64_t)in->layout.pool_id); | |
11936 | }); | |
11937 | if (in->layout.pool_ns.length()) | |
11938 | r += snprintf(val + r, size - r, " pool_namespace=%s", | |
11939 | in->layout.pool_ns.c_str()); | |
11940 | return r; | |
11941 | } | |
11942 | size_t Client::_vxattrcb_layout_stripe_unit(Inode *in, char *val, size_t size) | |
11943 | { | |
11fdf7f2 | 11944 | return snprintf(val, size, "%llu", (unsigned long long)in->layout.stripe_unit); |
7c673cae FG |
11945 | } |
11946 | size_t Client::_vxattrcb_layout_stripe_count(Inode *in, char *val, size_t size) | |
11947 | { | |
11fdf7f2 | 11948 | return snprintf(val, size, "%llu", (unsigned long long)in->layout.stripe_count); |
7c673cae FG |
11949 | } |
11950 | size_t Client::_vxattrcb_layout_object_size(Inode *in, char *val, size_t size) | |
11951 | { | |
11fdf7f2 | 11952 | return snprintf(val, size, "%llu", (unsigned long long)in->layout.object_size); |
7c673cae FG |
11953 | } |
11954 | size_t Client::_vxattrcb_layout_pool(Inode *in, char *val, size_t size) | |
11955 | { | |
11956 | size_t r; | |
11957 | objecter->with_osdmap([&](const OSDMap& o) { | |
11958 | if (o.have_pg_pool(in->layout.pool_id)) | |
11959 | r = snprintf(val, size, "%s", o.get_pool_name( | |
11960 | in->layout.pool_id).c_str()); | |
11961 | else | |
11962 | r = snprintf(val, size, "%" PRIu64, (uint64_t)in->layout.pool_id); | |
11963 | }); | |
11964 | return r; | |
11965 | } | |
11966 | size_t Client::_vxattrcb_layout_pool_namespace(Inode *in, char *val, size_t size) | |
11967 | { | |
11968 | return snprintf(val, size, "%s", in->layout.pool_ns.c_str()); | |
11969 | } | |
11970 | size_t Client::_vxattrcb_dir_entries(Inode *in, char *val, size_t size) | |
11971 | { | |
11fdf7f2 | 11972 | return snprintf(val, size, "%llu", (unsigned long long)(in->dirstat.nfiles + in->dirstat.nsubdirs)); |
7c673cae FG |
11973 | } |
11974 | size_t Client::_vxattrcb_dir_files(Inode *in, char *val, size_t size) | |
11975 | { | |
11fdf7f2 | 11976 | return snprintf(val, size, "%llu", (unsigned long long)in->dirstat.nfiles); |
7c673cae FG |
11977 | } |
11978 | size_t Client::_vxattrcb_dir_subdirs(Inode *in, char *val, size_t size) | |
11979 | { | |
11fdf7f2 | 11980 | return snprintf(val, size, "%llu", (unsigned long long)in->dirstat.nsubdirs); |
7c673cae FG |
11981 | } |
11982 | size_t Client::_vxattrcb_dir_rentries(Inode *in, char *val, size_t size) | |
11983 | { | |
11fdf7f2 | 11984 | return snprintf(val, size, "%llu", (unsigned long long)(in->rstat.rfiles + in->rstat.rsubdirs)); |
7c673cae FG |
11985 | } |
11986 | size_t Client::_vxattrcb_dir_rfiles(Inode *in, char *val, size_t size) | |
11987 | { | |
11fdf7f2 | 11988 | return snprintf(val, size, "%llu", (unsigned long long)in->rstat.rfiles); |
7c673cae FG |
11989 | } |
11990 | size_t Client::_vxattrcb_dir_rsubdirs(Inode *in, char *val, size_t size) | |
11991 | { | |
11fdf7f2 | 11992 | return snprintf(val, size, "%llu", (unsigned long long)in->rstat.rsubdirs); |
7c673cae FG |
11993 | } |
11994 | size_t Client::_vxattrcb_dir_rbytes(Inode *in, char *val, size_t size) | |
11995 | { | |
11fdf7f2 | 11996 | return snprintf(val, size, "%llu", (unsigned long long)in->rstat.rbytes); |
7c673cae FG |
11997 | } |
11998 | size_t Client::_vxattrcb_dir_rctime(Inode *in, char *val, size_t size) | |
11999 | { | |
81eedcae | 12000 | return snprintf(val, size, "%ld.%09ld", (long)in->rstat.rctime.sec(), |
7c673cae FG |
12001 | (long)in->rstat.rctime.nsec()); |
12002 | } | |
11fdf7f2 TL |
12003 | bool Client::_vxattrcb_dir_pin_exists(Inode *in) |
12004 | { | |
12005 | return in->dir_pin != -ENODATA; | |
12006 | } | |
12007 | size_t Client::_vxattrcb_dir_pin(Inode *in, char *val, size_t size) | |
12008 | { | |
12009 | return snprintf(val, size, "%ld", (long)in->dir_pin); | |
12010 | } | |
7c673cae | 12011 | |
81eedcae TL |
12012 | bool Client::_vxattrcb_snap_btime_exists(Inode *in) |
12013 | { | |
12014 | return !in->snap_btime.is_zero(); | |
12015 | } | |
12016 | ||
12017 | size_t Client::_vxattrcb_snap_btime(Inode *in, char *val, size_t size) | |
12018 | { | |
12019 | return snprintf(val, size, "%llu.%09lu", | |
12020 | (long long unsigned)in->snap_btime.sec(), | |
12021 | (long unsigned)in->snap_btime.nsec()); | |
12022 | } | |
12023 | ||
adb31ebb TL |
12024 | size_t Client::_vxattrcb_cluster_fsid(Inode *in, char *val, size_t size) |
12025 | { | |
12026 | return snprintf(val, size, "%s", monclient->get_fsid().to_string().c_str()); | |
12027 | } | |
12028 | ||
12029 | size_t Client::_vxattrcb_client_id(Inode *in, char *val, size_t size) | |
12030 | { | |
12031 | auto name = messenger->get_myname(); | |
12032 | return snprintf(val, size, "%s%ld", name.type_str(), name.num()); | |
12033 | } | |
12034 | ||
7c673cae FG |
12035 | #define CEPH_XATTR_NAME(_type, _name) "ceph." #_type "." #_name |
12036 | #define CEPH_XATTR_NAME2(_type, _name, _name2) "ceph." #_type "." #_name "." #_name2 | |
12037 | ||
adb31ebb | 12038 | #define XATTR_NAME_CEPH(_type, _name, _flags) \ |
28e407b8 AA |
12039 | { \ |
12040 | name: CEPH_XATTR_NAME(_type, _name), \ | |
12041 | getxattr_cb: &Client::_vxattrcb_ ## _type ## _ ## _name, \ | |
12042 | readonly: true, \ | |
28e407b8 AA |
12043 | exists_cb: NULL, \ |
12044 | flags: _flags, \ | |
7c673cae FG |
12045 | } |
12046 | #define XATTR_LAYOUT_FIELD(_type, _name, _field) \ | |
12047 | { \ | |
12048 | name: CEPH_XATTR_NAME2(_type, _name, _field), \ | |
12049 | getxattr_cb: &Client::_vxattrcb_ ## _name ## _ ## _field, \ | |
12050 | readonly: false, \ | |
7c673cae | 12051 | exists_cb: &Client::_vxattrcb_layout_exists, \ |
28e407b8 | 12052 | flags: 0, \ |
7c673cae FG |
12053 | } |
12054 | #define XATTR_QUOTA_FIELD(_type, _name) \ | |
12055 | { \ | |
12056 | name: CEPH_XATTR_NAME(_type, _name), \ | |
12057 | getxattr_cb: &Client::_vxattrcb_ ## _type ## _ ## _name, \ | |
12058 | readonly: false, \ | |
7c673cae | 12059 | exists_cb: &Client::_vxattrcb_quota_exists, \ |
28e407b8 | 12060 | flags: 0, \ |
7c673cae FG |
12061 | } |
12062 | ||
12063 | const Client::VXattr Client::_dir_vxattrs[] = { | |
12064 | { | |
12065 | name: "ceph.dir.layout", | |
12066 | getxattr_cb: &Client::_vxattrcb_layout, | |
12067 | readonly: false, | |
7c673cae | 12068 | exists_cb: &Client::_vxattrcb_layout_exists, |
28e407b8 | 12069 | flags: 0, |
7c673cae FG |
12070 | }, |
12071 | XATTR_LAYOUT_FIELD(dir, layout, stripe_unit), | |
12072 | XATTR_LAYOUT_FIELD(dir, layout, stripe_count), | |
12073 | XATTR_LAYOUT_FIELD(dir, layout, object_size), | |
12074 | XATTR_LAYOUT_FIELD(dir, layout, pool), | |
12075 | XATTR_LAYOUT_FIELD(dir, layout, pool_namespace), | |
adb31ebb TL |
12076 | XATTR_NAME_CEPH(dir, entries, VXATTR_DIRSTAT), |
12077 | XATTR_NAME_CEPH(dir, files, VXATTR_DIRSTAT), | |
12078 | XATTR_NAME_CEPH(dir, subdirs, VXATTR_DIRSTAT), | |
12079 | XATTR_NAME_CEPH(dir, rentries, VXATTR_RSTAT), | |
12080 | XATTR_NAME_CEPH(dir, rfiles, VXATTR_RSTAT), | |
12081 | XATTR_NAME_CEPH(dir, rsubdirs, VXATTR_RSTAT), | |
12082 | XATTR_NAME_CEPH(dir, rbytes, VXATTR_RSTAT), | |
12083 | XATTR_NAME_CEPH(dir, rctime, VXATTR_RSTAT), | |
7c673cae FG |
12084 | { |
12085 | name: "ceph.quota", | |
12086 | getxattr_cb: &Client::_vxattrcb_quota, | |
12087 | readonly: false, | |
7c673cae | 12088 | exists_cb: &Client::_vxattrcb_quota_exists, |
28e407b8 | 12089 | flags: 0, |
7c673cae FG |
12090 | }, |
12091 | XATTR_QUOTA_FIELD(quota, max_bytes), | |
12092 | XATTR_QUOTA_FIELD(quota, max_files), | |
11fdf7f2 TL |
12093 | { |
12094 | name: "ceph.dir.pin", | |
12095 | getxattr_cb: &Client::_vxattrcb_dir_pin, | |
12096 | readonly: false, | |
11fdf7f2 TL |
12097 | exists_cb: &Client::_vxattrcb_dir_pin_exists, |
12098 | flags: 0, | |
12099 | }, | |
81eedcae TL |
12100 | { |
12101 | name: "ceph.snap.btime", | |
12102 | getxattr_cb: &Client::_vxattrcb_snap_btime, | |
12103 | readonly: true, | |
81eedcae TL |
12104 | exists_cb: &Client::_vxattrcb_snap_btime_exists, |
12105 | flags: 0, | |
12106 | }, | |
7c673cae FG |
12107 | { name: "" } /* Required table terminator */ |
12108 | }; | |
12109 | ||
12110 | const Client::VXattr Client::_file_vxattrs[] = { | |
12111 | { | |
12112 | name: "ceph.file.layout", | |
12113 | getxattr_cb: &Client::_vxattrcb_layout, | |
12114 | readonly: false, | |
7c673cae | 12115 | exists_cb: &Client::_vxattrcb_layout_exists, |
28e407b8 | 12116 | flags: 0, |
7c673cae FG |
12117 | }, |
12118 | XATTR_LAYOUT_FIELD(file, layout, stripe_unit), | |
12119 | XATTR_LAYOUT_FIELD(file, layout, stripe_count), | |
12120 | XATTR_LAYOUT_FIELD(file, layout, object_size), | |
12121 | XATTR_LAYOUT_FIELD(file, layout, pool), | |
12122 | XATTR_LAYOUT_FIELD(file, layout, pool_namespace), | |
81eedcae TL |
12123 | { |
12124 | name: "ceph.snap.btime", | |
12125 | getxattr_cb: &Client::_vxattrcb_snap_btime, | |
12126 | readonly: true, | |
81eedcae TL |
12127 | exists_cb: &Client::_vxattrcb_snap_btime_exists, |
12128 | flags: 0, | |
12129 | }, | |
7c673cae FG |
12130 | { name: "" } /* Required table terminator */ |
12131 | }; | |
12132 | ||
adb31ebb TL |
12133 | const Client::VXattr Client::_common_vxattrs[] = { |
12134 | { | |
12135 | name: "ceph.cluster_fsid", | |
12136 | getxattr_cb: &Client::_vxattrcb_cluster_fsid, | |
12137 | readonly: true, | |
12138 | exists_cb: nullptr, | |
12139 | flags: 0, | |
12140 | }, | |
12141 | { | |
12142 | name: "ceph.client_id", | |
12143 | getxattr_cb: &Client::_vxattrcb_client_id, | |
12144 | readonly: true, | |
12145 | exists_cb: nullptr, | |
12146 | flags: 0, | |
12147 | }, | |
12148 | { name: "" } /* Required table terminator */ | |
12149 | }; | |
12150 | ||
7c673cae FG |
12151 | const Client::VXattr *Client::_get_vxattrs(Inode *in) |
12152 | { | |
12153 | if (in->is_dir()) | |
12154 | return _dir_vxattrs; | |
12155 | else if (in->is_file()) | |
12156 | return _file_vxattrs; | |
12157 | return NULL; | |
12158 | } | |
12159 | ||
12160 | const Client::VXattr *Client::_match_vxattr(Inode *in, const char *name) | |
12161 | { | |
12162 | if (strncmp(name, "ceph.", 5) == 0) { | |
12163 | const VXattr *vxattr = _get_vxattrs(in); | |
12164 | if (vxattr) { | |
12165 | while (!vxattr->name.empty()) { | |
12166 | if (vxattr->name == name) | |
12167 | return vxattr; | |
12168 | vxattr++; | |
12169 | } | |
12170 | } | |
adb31ebb TL |
12171 | |
12172 | // for common vxattrs | |
12173 | vxattr = _common_vxattrs; | |
12174 | while (!vxattr->name.empty()) { | |
12175 | if (vxattr->name == name) | |
12176 | return vxattr; | |
12177 | vxattr++; | |
12178 | } | |
7c673cae | 12179 | } |
adb31ebb | 12180 | |
7c673cae FG |
12181 | return NULL; |
12182 | } | |
12183 | ||
7c673cae FG |
12184 | int Client::ll_readlink(Inode *in, char *buf, size_t buflen, const UserPerm& perms) |
12185 | { | |
11fdf7f2 | 12186 | std::lock_guard lock(client_lock); |
7c673cae | 12187 | |
181888fb FG |
12188 | if (unmounting) |
12189 | return -ENOTCONN; | |
12190 | ||
7c673cae FG |
12191 | vinodeno_t vino = _get_vino(in); |
12192 | ||
12193 | ldout(cct, 3) << "ll_readlink " << vino << dendl; | |
12194 | tout(cct) << "ll_readlink" << std::endl; | |
12195 | tout(cct) << vino.ino.val << std::endl; | |
12196 | ||
11fdf7f2 TL |
12197 | for (auto dn : in->dentries) { |
12198 | touch_dn(dn); | |
7c673cae FG |
12199 | } |
12200 | ||
12201 | int r = _readlink(in, buf, buflen); // FIXME: no permission checking! | |
12202 | ldout(cct, 3) << "ll_readlink " << vino << " = " << r << dendl; | |
12203 | return r; | |
12204 | } | |
12205 | ||
12206 | int Client::_mknod(Inode *dir, const char *name, mode_t mode, dev_t rdev, | |
12207 | const UserPerm& perms, InodeRef *inp) | |
12208 | { | |
1adf2230 | 12209 | ldout(cct, 8) << "_mknod(" << dir->ino << " " << name << ", 0" << oct |
7c673cae FG |
12210 | << mode << dec << ", " << rdev << ", uid " << perms.uid() |
12211 | << ", gid " << perms.gid() << ")" << dendl; | |
12212 | ||
12213 | if (strlen(name) > NAME_MAX) | |
12214 | return -ENAMETOOLONG; | |
12215 | ||
12216 | if (dir->snapid != CEPH_NOSNAP) { | |
12217 | return -EROFS; | |
12218 | } | |
12219 | if (is_quota_files_exceeded(dir, perms)) { | |
12220 | return -EDQUOT; | |
12221 | } | |
12222 | ||
12223 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_MKNOD); | |
12224 | ||
12225 | filepath path; | |
12226 | dir->make_nosnap_relative_path(path); | |
12227 | path.push_dentry(name); | |
12228 | req->set_filepath(path); | |
12229 | req->set_inode(dir); | |
12230 | req->head.args.mknod.rdev = rdev; | |
12231 | req->dentry_drop = CEPH_CAP_FILE_SHARED; | |
12232 | req->dentry_unless = CEPH_CAP_FILE_EXCL; | |
12233 | ||
12234 | bufferlist xattrs_bl; | |
12235 | int res = _posix_acl_create(dir, &mode, xattrs_bl, perms); | |
12236 | if (res < 0) | |
12237 | goto fail; | |
12238 | req->head.args.mknod.mode = mode; | |
12239 | if (xattrs_bl.length() > 0) | |
12240 | req->set_data(xattrs_bl); | |
12241 | ||
12242 | Dentry *de; | |
12243 | res = get_or_create(dir, name, &de); | |
12244 | if (res < 0) | |
12245 | goto fail; | |
12246 | req->set_dentry(de); | |
12247 | ||
12248 | res = make_request(req, perms, inp); | |
12249 | ||
12250 | trim_cache(); | |
12251 | ||
1adf2230 | 12252 | ldout(cct, 8) << "mknod(" << path << ", 0" << oct << mode << dec << ") = " << res << dendl; |
7c673cae FG |
12253 | return res; |
12254 | ||
12255 | fail: | |
12256 | put_request(req); | |
12257 | return res; | |
12258 | } | |
12259 | ||
12260 | int Client::ll_mknod(Inode *parent, const char *name, mode_t mode, | |
12261 | dev_t rdev, struct stat *attr, Inode **out, | |
12262 | const UserPerm& perms) | |
12263 | { | |
11fdf7f2 | 12264 | std::lock_guard lock(client_lock); |
7c673cae | 12265 | |
181888fb FG |
12266 | if (unmounting) |
12267 | return -ENOTCONN; | |
12268 | ||
7c673cae FG |
12269 | vinodeno_t vparent = _get_vino(parent); |
12270 | ||
12271 | ldout(cct, 3) << "ll_mknod " << vparent << " " << name << dendl; | |
12272 | tout(cct) << "ll_mknod" << std::endl; | |
12273 | tout(cct) << vparent.ino.val << std::endl; | |
12274 | tout(cct) << name << std::endl; | |
12275 | tout(cct) << mode << std::endl; | |
12276 | tout(cct) << rdev << std::endl; | |
12277 | ||
11fdf7f2 | 12278 | if (!fuse_default_permissions) { |
7c673cae FG |
12279 | int r = may_create(parent, perms); |
12280 | if (r < 0) | |
12281 | return r; | |
12282 | } | |
12283 | ||
12284 | InodeRef in; | |
12285 | int r = _mknod(parent, name, mode, rdev, perms, &in); | |
12286 | if (r == 0) { | |
12287 | fill_stat(in, attr); | |
12288 | _ll_get(in.get()); | |
12289 | } | |
12290 | tout(cct) << attr->st_ino << std::endl; | |
12291 | ldout(cct, 3) << "ll_mknod " << vparent << " " << name | |
12292 | << " = " << r << " (" << hex << attr->st_ino << dec << ")" << dendl; | |
12293 | *out = in.get(); | |
12294 | return r; | |
12295 | } | |
12296 | ||
12297 | int Client::ll_mknodx(Inode *parent, const char *name, mode_t mode, | |
12298 | dev_t rdev, Inode **out, | |
12299 | struct ceph_statx *stx, unsigned want, unsigned flags, | |
12300 | const UserPerm& perms) | |
12301 | { | |
12302 | unsigned caps = statx_to_mask(flags, want); | |
11fdf7f2 | 12303 | std::lock_guard lock(client_lock); |
7c673cae | 12304 | |
181888fb FG |
12305 | if (unmounting) |
12306 | return -ENOTCONN; | |
12307 | ||
7c673cae FG |
12308 | vinodeno_t vparent = _get_vino(parent); |
12309 | ||
12310 | ldout(cct, 3) << "ll_mknodx " << vparent << " " << name << dendl; | |
12311 | tout(cct) << "ll_mknodx" << std::endl; | |
12312 | tout(cct) << vparent.ino.val << std::endl; | |
12313 | tout(cct) << name << std::endl; | |
12314 | tout(cct) << mode << std::endl; | |
12315 | tout(cct) << rdev << std::endl; | |
12316 | ||
11fdf7f2 | 12317 | if (!fuse_default_permissions) { |
7c673cae FG |
12318 | int r = may_create(parent, perms); |
12319 | if (r < 0) | |
12320 | return r; | |
12321 | } | |
12322 | ||
12323 | InodeRef in; | |
12324 | int r = _mknod(parent, name, mode, rdev, perms, &in); | |
12325 | if (r == 0) { | |
12326 | fill_statx(in, caps, stx); | |
12327 | _ll_get(in.get()); | |
12328 | } | |
12329 | tout(cct) << stx->stx_ino << std::endl; | |
12330 | ldout(cct, 3) << "ll_mknodx " << vparent << " " << name | |
12331 | << " = " << r << " (" << hex << stx->stx_ino << dec << ")" << dendl; | |
12332 | *out = in.get(); | |
12333 | return r; | |
12334 | } | |
12335 | ||
12336 | int Client::_create(Inode *dir, const char *name, int flags, mode_t mode, | |
12337 | InodeRef *inp, Fh **fhp, int stripe_unit, int stripe_count, | |
12338 | int object_size, const char *data_pool, bool *created, | |
12339 | const UserPerm& perms) | |
12340 | { | |
1adf2230 | 12341 | ldout(cct, 8) << "_create(" << dir->ino << " " << name << ", 0" << oct << |
7c673cae FG |
12342 | mode << dec << ")" << dendl; |
12343 | ||
12344 | if (strlen(name) > NAME_MAX) | |
12345 | return -ENAMETOOLONG; | |
12346 | if (dir->snapid != CEPH_NOSNAP) { | |
12347 | return -EROFS; | |
12348 | } | |
12349 | if (is_quota_files_exceeded(dir, perms)) { | |
12350 | return -EDQUOT; | |
12351 | } | |
12352 | ||
12353 | // use normalized flags to generate cmode | |
11fdf7f2 TL |
12354 | int cflags = ceph_flags_sys2wire(flags); |
12355 | if (cct->_conf.get_val<bool>("client_force_lazyio")) | |
12356 | cflags |= CEPH_O_LAZY; | |
12357 | ||
12358 | int cmode = ceph_flags_to_mode(cflags); | |
7c673cae FG |
12359 | |
12360 | int64_t pool_id = -1; | |
12361 | if (data_pool && *data_pool) { | |
12362 | pool_id = objecter->with_osdmap( | |
12363 | std::mem_fn(&OSDMap::lookup_pg_pool_name), data_pool); | |
12364 | if (pool_id < 0) | |
12365 | return -EINVAL; | |
12366 | if (pool_id > 0xffffffffll) | |
12367 | return -ERANGE; // bummer! | |
12368 | } | |
12369 | ||
12370 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_CREATE); | |
12371 | ||
12372 | filepath path; | |
12373 | dir->make_nosnap_relative_path(path); | |
12374 | path.push_dentry(name); | |
12375 | req->set_filepath(path); | |
12376 | req->set_inode(dir); | |
11fdf7f2 | 12377 | req->head.args.open.flags = cflags | CEPH_O_CREAT; |
7c673cae FG |
12378 | |
12379 | req->head.args.open.stripe_unit = stripe_unit; | |
12380 | req->head.args.open.stripe_count = stripe_count; | |
12381 | req->head.args.open.object_size = object_size; | |
12382 | if (cct->_conf->client_debug_getattr_caps) | |
12383 | req->head.args.open.mask = DEBUG_GETATTR_CAPS; | |
12384 | else | |
12385 | req->head.args.open.mask = 0; | |
12386 | req->head.args.open.pool = pool_id; | |
12387 | req->dentry_drop = CEPH_CAP_FILE_SHARED; | |
12388 | req->dentry_unless = CEPH_CAP_FILE_EXCL; | |
12389 | ||
12390 | mode |= S_IFREG; | |
12391 | bufferlist xattrs_bl; | |
12392 | int res = _posix_acl_create(dir, &mode, xattrs_bl, perms); | |
12393 | if (res < 0) | |
12394 | goto fail; | |
12395 | req->head.args.open.mode = mode; | |
12396 | if (xattrs_bl.length() > 0) | |
12397 | req->set_data(xattrs_bl); | |
12398 | ||
12399 | Dentry *de; | |
12400 | res = get_or_create(dir, name, &de); | |
12401 | if (res < 0) | |
12402 | goto fail; | |
12403 | req->set_dentry(de); | |
12404 | ||
12405 | res = make_request(req, perms, inp, created); | |
12406 | if (res < 0) { | |
12407 | goto reply_error; | |
12408 | } | |
12409 | ||
12410 | /* If the caller passed a value in fhp, do the open */ | |
12411 | if(fhp) { | |
12412 | (*inp)->get_open_ref(cmode); | |
12413 | *fhp = _create_fh(inp->get(), flags, cmode, perms); | |
12414 | } | |
12415 | ||
12416 | reply_error: | |
12417 | trim_cache(); | |
12418 | ||
1adf2230 | 12419 | ldout(cct, 8) << "create(" << path << ", 0" << oct << mode << dec |
7c673cae FG |
12420 | << " layout " << stripe_unit |
12421 | << ' ' << stripe_count | |
12422 | << ' ' << object_size | |
12423 | <<") = " << res << dendl; | |
12424 | return res; | |
12425 | ||
12426 | fail: | |
12427 | put_request(req); | |
12428 | return res; | |
12429 | } | |
12430 | ||
12431 | ||
12432 | int Client::_mkdir(Inode *dir, const char *name, mode_t mode, const UserPerm& perm, | |
12433 | InodeRef *inp) | |
12434 | { | |
1adf2230 | 12435 | ldout(cct, 8) << "_mkdir(" << dir->ino << " " << name << ", 0" << oct |
7c673cae FG |
12436 | << mode << dec << ", uid " << perm.uid() |
12437 | << ", gid " << perm.gid() << ")" << dendl; | |
12438 | ||
12439 | if (strlen(name) > NAME_MAX) | |
12440 | return -ENAMETOOLONG; | |
12441 | ||
12442 | if (dir->snapid != CEPH_NOSNAP && dir->snapid != CEPH_SNAPDIR) { | |
12443 | return -EROFS; | |
12444 | } | |
12445 | if (is_quota_files_exceeded(dir, perm)) { | |
12446 | return -EDQUOT; | |
12447 | } | |
12448 | MetaRequest *req = new MetaRequest(dir->snapid == CEPH_SNAPDIR ? | |
12449 | CEPH_MDS_OP_MKSNAP : CEPH_MDS_OP_MKDIR); | |
12450 | ||
12451 | filepath path; | |
12452 | dir->make_nosnap_relative_path(path); | |
12453 | path.push_dentry(name); | |
12454 | req->set_filepath(path); | |
12455 | req->set_inode(dir); | |
12456 | req->dentry_drop = CEPH_CAP_FILE_SHARED; | |
12457 | req->dentry_unless = CEPH_CAP_FILE_EXCL; | |
12458 | ||
12459 | mode |= S_IFDIR; | |
12460 | bufferlist xattrs_bl; | |
12461 | int res = _posix_acl_create(dir, &mode, xattrs_bl, perm); | |
12462 | if (res < 0) | |
12463 | goto fail; | |
12464 | req->head.args.mkdir.mode = mode; | |
12465 | if (xattrs_bl.length() > 0) | |
12466 | req->set_data(xattrs_bl); | |
12467 | ||
12468 | Dentry *de; | |
12469 | res = get_or_create(dir, name, &de); | |
12470 | if (res < 0) | |
12471 | goto fail; | |
12472 | req->set_dentry(de); | |
12473 | ||
12474 | ldout(cct, 10) << "_mkdir: making request" << dendl; | |
12475 | res = make_request(req, perm, inp); | |
12476 | ldout(cct, 10) << "_mkdir result is " << res << dendl; | |
12477 | ||
12478 | trim_cache(); | |
12479 | ||
1adf2230 | 12480 | ldout(cct, 8) << "_mkdir(" << path << ", 0" << oct << mode << dec << ") = " << res << dendl; |
7c673cae FG |
12481 | return res; |
12482 | ||
12483 | fail: | |
12484 | put_request(req); | |
12485 | return res; | |
12486 | } | |
12487 | ||
12488 | int Client::ll_mkdir(Inode *parent, const char *name, mode_t mode, | |
12489 | struct stat *attr, Inode **out, const UserPerm& perm) | |
12490 | { | |
11fdf7f2 | 12491 | std::lock_guard lock(client_lock); |
7c673cae | 12492 | |
181888fb FG |
12493 | if (unmounting) |
12494 | return -ENOTCONN; | |
12495 | ||
7c673cae FG |
12496 | vinodeno_t vparent = _get_vino(parent); |
12497 | ||
12498 | ldout(cct, 3) << "ll_mkdir " << vparent << " " << name << dendl; | |
12499 | tout(cct) << "ll_mkdir" << std::endl; | |
12500 | tout(cct) << vparent.ino.val << std::endl; | |
12501 | tout(cct) << name << std::endl; | |
12502 | tout(cct) << mode << std::endl; | |
12503 | ||
11fdf7f2 | 12504 | if (!fuse_default_permissions) { |
7c673cae FG |
12505 | int r = may_create(parent, perm); |
12506 | if (r < 0) | |
12507 | return r; | |
12508 | } | |
12509 | ||
12510 | InodeRef in; | |
12511 | int r = _mkdir(parent, name, mode, perm, &in); | |
12512 | if (r == 0) { | |
12513 | fill_stat(in, attr); | |
12514 | _ll_get(in.get()); | |
12515 | } | |
12516 | tout(cct) << attr->st_ino << std::endl; | |
12517 | ldout(cct, 3) << "ll_mkdir " << vparent << " " << name | |
12518 | << " = " << r << " (" << hex << attr->st_ino << dec << ")" << dendl; | |
12519 | *out = in.get(); | |
12520 | return r; | |
12521 | } | |
12522 | ||
12523 | int Client::ll_mkdirx(Inode *parent, const char *name, mode_t mode, Inode **out, | |
12524 | struct ceph_statx *stx, unsigned want, unsigned flags, | |
12525 | const UserPerm& perms) | |
12526 | { | |
11fdf7f2 | 12527 | std::lock_guard lock(client_lock); |
7c673cae | 12528 | |
181888fb FG |
12529 | if (unmounting) |
12530 | return -ENOTCONN; | |
12531 | ||
7c673cae FG |
12532 | vinodeno_t vparent = _get_vino(parent); |
12533 | ||
12534 | ldout(cct, 3) << "ll_mkdirx " << vparent << " " << name << dendl; | |
12535 | tout(cct) << "ll_mkdirx" << std::endl; | |
12536 | tout(cct) << vparent.ino.val << std::endl; | |
12537 | tout(cct) << name << std::endl; | |
12538 | tout(cct) << mode << std::endl; | |
12539 | ||
11fdf7f2 | 12540 | if (!fuse_default_permissions) { |
7c673cae FG |
12541 | int r = may_create(parent, perms); |
12542 | if (r < 0) | |
12543 | return r; | |
12544 | } | |
12545 | ||
12546 | InodeRef in; | |
12547 | int r = _mkdir(parent, name, mode, perms, &in); | |
12548 | if (r == 0) { | |
12549 | fill_statx(in, statx_to_mask(flags, want), stx); | |
12550 | _ll_get(in.get()); | |
12551 | } else { | |
12552 | stx->stx_ino = 0; | |
12553 | stx->stx_mask = 0; | |
12554 | } | |
12555 | tout(cct) << stx->stx_ino << std::endl; | |
12556 | ldout(cct, 3) << "ll_mkdirx " << vparent << " " << name | |
12557 | << " = " << r << " (" << hex << stx->stx_ino << dec << ")" << dendl; | |
12558 | *out = in.get(); | |
12559 | return r; | |
12560 | } | |
12561 | ||
12562 | int Client::_symlink(Inode *dir, const char *name, const char *target, | |
12563 | const UserPerm& perms, InodeRef *inp) | |
12564 | { | |
1adf2230 | 12565 | ldout(cct, 8) << "_symlink(" << dir->ino << " " << name << ", " << target |
7c673cae FG |
12566 | << ", uid " << perms.uid() << ", gid " << perms.gid() << ")" |
12567 | << dendl; | |
12568 | ||
12569 | if (strlen(name) > NAME_MAX) | |
12570 | return -ENAMETOOLONG; | |
12571 | ||
12572 | if (dir->snapid != CEPH_NOSNAP) { | |
12573 | return -EROFS; | |
12574 | } | |
12575 | if (is_quota_files_exceeded(dir, perms)) { | |
12576 | return -EDQUOT; | |
12577 | } | |
12578 | ||
12579 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_SYMLINK); | |
12580 | ||
12581 | filepath path; | |
12582 | dir->make_nosnap_relative_path(path); | |
12583 | path.push_dentry(name); | |
12584 | req->set_filepath(path); | |
12585 | req->set_inode(dir); | |
12586 | req->set_string2(target); | |
12587 | req->dentry_drop = CEPH_CAP_FILE_SHARED; | |
12588 | req->dentry_unless = CEPH_CAP_FILE_EXCL; | |
12589 | ||
12590 | Dentry *de; | |
12591 | int res = get_or_create(dir, name, &de); | |
12592 | if (res < 0) | |
12593 | goto fail; | |
12594 | req->set_dentry(de); | |
12595 | ||
12596 | res = make_request(req, perms, inp); | |
12597 | ||
12598 | trim_cache(); | |
1adf2230 | 12599 | ldout(cct, 8) << "_symlink(\"" << path << "\", \"" << target << "\") = " << |
7c673cae FG |
12600 | res << dendl; |
12601 | return res; | |
12602 | ||
12603 | fail: | |
12604 | put_request(req); | |
12605 | return res; | |
12606 | } | |
12607 | ||
12608 | int Client::ll_symlink(Inode *parent, const char *name, const char *value, | |
12609 | struct stat *attr, Inode **out, const UserPerm& perms) | |
12610 | { | |
11fdf7f2 | 12611 | std::lock_guard lock(client_lock); |
7c673cae | 12612 | |
181888fb FG |
12613 | if (unmounting) |
12614 | return -ENOTCONN; | |
12615 | ||
7c673cae FG |
12616 | vinodeno_t vparent = _get_vino(parent); |
12617 | ||
12618 | ldout(cct, 3) << "ll_symlink " << vparent << " " << name << " -> " << value | |
12619 | << dendl; | |
12620 | tout(cct) << "ll_symlink" << std::endl; | |
12621 | tout(cct) << vparent.ino.val << std::endl; | |
12622 | tout(cct) << name << std::endl; | |
12623 | tout(cct) << value << std::endl; | |
12624 | ||
11fdf7f2 | 12625 | if (!fuse_default_permissions) { |
7c673cae FG |
12626 | int r = may_create(parent, perms); |
12627 | if (r < 0) | |
12628 | return r; | |
12629 | } | |
12630 | ||
12631 | InodeRef in; | |
12632 | int r = _symlink(parent, name, value, perms, &in); | |
12633 | if (r == 0) { | |
12634 | fill_stat(in, attr); | |
12635 | _ll_get(in.get()); | |
12636 | } | |
12637 | tout(cct) << attr->st_ino << std::endl; | |
12638 | ldout(cct, 3) << "ll_symlink " << vparent << " " << name | |
12639 | << " = " << r << " (" << hex << attr->st_ino << dec << ")" << dendl; | |
12640 | *out = in.get(); | |
12641 | return r; | |
12642 | } | |
12643 | ||
12644 | int Client::ll_symlinkx(Inode *parent, const char *name, const char *value, | |
12645 | Inode **out, struct ceph_statx *stx, unsigned want, | |
12646 | unsigned flags, const UserPerm& perms) | |
12647 | { | |
11fdf7f2 | 12648 | std::lock_guard lock(client_lock); |
7c673cae | 12649 | |
181888fb FG |
12650 | if (unmounting) |
12651 | return -ENOTCONN; | |
12652 | ||
7c673cae FG |
12653 | vinodeno_t vparent = _get_vino(parent); |
12654 | ||
12655 | ldout(cct, 3) << "ll_symlinkx " << vparent << " " << name << " -> " << value | |
12656 | << dendl; | |
12657 | tout(cct) << "ll_symlinkx" << std::endl; | |
12658 | tout(cct) << vparent.ino.val << std::endl; | |
12659 | tout(cct) << name << std::endl; | |
12660 | tout(cct) << value << std::endl; | |
12661 | ||
11fdf7f2 | 12662 | if (!fuse_default_permissions) { |
7c673cae FG |
12663 | int r = may_create(parent, perms); |
12664 | if (r < 0) | |
12665 | return r; | |
12666 | } | |
12667 | ||
12668 | InodeRef in; | |
12669 | int r = _symlink(parent, name, value, perms, &in); | |
12670 | if (r == 0) { | |
12671 | fill_statx(in, statx_to_mask(flags, want), stx); | |
12672 | _ll_get(in.get()); | |
12673 | } | |
12674 | tout(cct) << stx->stx_ino << std::endl; | |
12675 | ldout(cct, 3) << "ll_symlinkx " << vparent << " " << name | |
12676 | << " = " << r << " (" << hex << stx->stx_ino << dec << ")" << dendl; | |
12677 | *out = in.get(); | |
12678 | return r; | |
12679 | } | |
12680 | ||
12681 | int Client::_unlink(Inode *dir, const char *name, const UserPerm& perm) | |
12682 | { | |
1adf2230 | 12683 | ldout(cct, 8) << "_unlink(" << dir->ino << " " << name |
7c673cae FG |
12684 | << " uid " << perm.uid() << " gid " << perm.gid() |
12685 | << ")" << dendl; | |
12686 | ||
12687 | if (dir->snapid != CEPH_NOSNAP) { | |
12688 | return -EROFS; | |
12689 | } | |
12690 | ||
12691 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_UNLINK); | |
12692 | ||
12693 | filepath path; | |
12694 | dir->make_nosnap_relative_path(path); | |
12695 | path.push_dentry(name); | |
12696 | req->set_filepath(path); | |
12697 | ||
12698 | InodeRef otherin; | |
b32b8144 | 12699 | Inode *in; |
7c673cae | 12700 | Dentry *de; |
b32b8144 | 12701 | |
7c673cae FG |
12702 | int res = get_or_create(dir, name, &de); |
12703 | if (res < 0) | |
12704 | goto fail; | |
12705 | req->set_dentry(de); | |
12706 | req->dentry_drop = CEPH_CAP_FILE_SHARED; | |
12707 | req->dentry_unless = CEPH_CAP_FILE_EXCL; | |
12708 | ||
12709 | res = _lookup(dir, name, 0, &otherin, perm); | |
12710 | if (res < 0) | |
12711 | goto fail; | |
b32b8144 FG |
12712 | |
12713 | in = otherin.get(); | |
12714 | req->set_other_inode(in); | |
12715 | in->break_all_delegs(); | |
7c673cae FG |
12716 | req->other_inode_drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL; |
12717 | ||
12718 | req->set_inode(dir); | |
12719 | ||
12720 | res = make_request(req, perm); | |
12721 | ||
12722 | trim_cache(); | |
1adf2230 | 12723 | ldout(cct, 8) << "unlink(" << path << ") = " << res << dendl; |
7c673cae FG |
12724 | return res; |
12725 | ||
12726 | fail: | |
12727 | put_request(req); | |
12728 | return res; | |
12729 | } | |
12730 | ||
12731 | int Client::ll_unlink(Inode *in, const char *name, const UserPerm& perm) | |
12732 | { | |
11fdf7f2 | 12733 | std::lock_guard lock(client_lock); |
7c673cae | 12734 | |
181888fb FG |
12735 | if (unmounting) |
12736 | return -ENOTCONN; | |
12737 | ||
7c673cae FG |
12738 | vinodeno_t vino = _get_vino(in); |
12739 | ||
12740 | ldout(cct, 3) << "ll_unlink " << vino << " " << name << dendl; | |
12741 | tout(cct) << "ll_unlink" << std::endl; | |
12742 | tout(cct) << vino.ino.val << std::endl; | |
12743 | tout(cct) << name << std::endl; | |
12744 | ||
11fdf7f2 | 12745 | if (!fuse_default_permissions) { |
7c673cae FG |
12746 | int r = may_delete(in, name, perm); |
12747 | if (r < 0) | |
12748 | return r; | |
12749 | } | |
12750 | return _unlink(in, name, perm); | |
12751 | } | |
12752 | ||
12753 | int Client::_rmdir(Inode *dir, const char *name, const UserPerm& perms) | |
12754 | { | |
1adf2230 | 12755 | ldout(cct, 8) << "_rmdir(" << dir->ino << " " << name << " uid " |
7c673cae FG |
12756 | << perms.uid() << " gid " << perms.gid() << ")" << dendl; |
12757 | ||
12758 | if (dir->snapid != CEPH_NOSNAP && dir->snapid != CEPH_SNAPDIR) { | |
12759 | return -EROFS; | |
12760 | } | |
b32b8144 FG |
12761 | |
12762 | int op = dir->snapid == CEPH_SNAPDIR ? CEPH_MDS_OP_RMSNAP : CEPH_MDS_OP_RMDIR; | |
12763 | MetaRequest *req = new MetaRequest(op); | |
7c673cae FG |
12764 | filepath path; |
12765 | dir->make_nosnap_relative_path(path); | |
12766 | path.push_dentry(name); | |
12767 | req->set_filepath(path); | |
11fdf7f2 | 12768 | req->set_inode(dir); |
7c673cae FG |
12769 | |
12770 | req->dentry_drop = CEPH_CAP_FILE_SHARED; | |
12771 | req->dentry_unless = CEPH_CAP_FILE_EXCL; | |
12772 | req->other_inode_drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL; | |
12773 | ||
12774 | InodeRef in; | |
12775 | ||
12776 | Dentry *de; | |
12777 | int res = get_or_create(dir, name, &de); | |
12778 | if (res < 0) | |
12779 | goto fail; | |
b32b8144 FG |
12780 | if (op == CEPH_MDS_OP_RMDIR) |
12781 | req->set_dentry(de); | |
12782 | else | |
12783 | de->get(); | |
12784 | ||
7c673cae FG |
12785 | res = _lookup(dir, name, 0, &in, perms); |
12786 | if (res < 0) | |
12787 | goto fail; | |
11fdf7f2 TL |
12788 | |
12789 | if (op == CEPH_MDS_OP_RMSNAP) { | |
7c673cae | 12790 | unlink(de, true, true); |
b32b8144 | 12791 | de->put(); |
7c673cae | 12792 | } |
11fdf7f2 | 12793 | req->set_other_inode(in.get()); |
7c673cae FG |
12794 | |
12795 | res = make_request(req, perms); | |
12796 | ||
12797 | trim_cache(); | |
1adf2230 | 12798 | ldout(cct, 8) << "rmdir(" << path << ") = " << res << dendl; |
7c673cae FG |
12799 | return res; |
12800 | ||
12801 | fail: | |
12802 | put_request(req); | |
12803 | return res; | |
12804 | } | |
12805 | ||
12806 | int Client::ll_rmdir(Inode *in, const char *name, const UserPerm& perms) | |
12807 | { | |
11fdf7f2 | 12808 | std::lock_guard lock(client_lock); |
7c673cae | 12809 | |
181888fb FG |
12810 | if (unmounting) |
12811 | return -ENOTCONN; | |
12812 | ||
7c673cae FG |
12813 | vinodeno_t vino = _get_vino(in); |
12814 | ||
12815 | ldout(cct, 3) << "ll_rmdir " << vino << " " << name << dendl; | |
12816 | tout(cct) << "ll_rmdir" << std::endl; | |
12817 | tout(cct) << vino.ino.val << std::endl; | |
12818 | tout(cct) << name << std::endl; | |
12819 | ||
11fdf7f2 | 12820 | if (!fuse_default_permissions) { |
7c673cae FG |
12821 | int r = may_delete(in, name, perms); |
12822 | if (r < 0) | |
12823 | return r; | |
12824 | } | |
12825 | ||
12826 | return _rmdir(in, name, perms); | |
12827 | } | |
12828 | ||
12829 | int Client::_rename(Inode *fromdir, const char *fromname, Inode *todir, const char *toname, const UserPerm& perm) | |
12830 | { | |
1adf2230 | 12831 | ldout(cct, 8) << "_rename(" << fromdir->ino << " " << fromname << " to " |
7c673cae FG |
12832 | << todir->ino << " " << toname |
12833 | << " uid " << perm.uid() << " gid " << perm.gid() << ")" | |
12834 | << dendl; | |
12835 | ||
12836 | if (fromdir->snapid != todir->snapid) | |
12837 | return -EXDEV; | |
12838 | ||
12839 | int op = CEPH_MDS_OP_RENAME; | |
12840 | if (fromdir->snapid != CEPH_NOSNAP) { | |
12841 | if (fromdir == todir && fromdir->snapid == CEPH_SNAPDIR) | |
12842 | op = CEPH_MDS_OP_RENAMESNAP; | |
12843 | else | |
12844 | return -EROFS; | |
12845 | } | |
7c673cae FG |
12846 | |
12847 | InodeRef target; | |
12848 | MetaRequest *req = new MetaRequest(op); | |
12849 | ||
12850 | filepath from; | |
12851 | fromdir->make_nosnap_relative_path(from); | |
12852 | from.push_dentry(fromname); | |
12853 | filepath to; | |
12854 | todir->make_nosnap_relative_path(to); | |
12855 | to.push_dentry(toname); | |
12856 | req->set_filepath(to); | |
12857 | req->set_filepath2(from); | |
12858 | ||
12859 | Dentry *oldde; | |
12860 | int res = get_or_create(fromdir, fromname, &oldde); | |
12861 | if (res < 0) | |
12862 | goto fail; | |
12863 | Dentry *de; | |
12864 | res = get_or_create(todir, toname, &de); | |
12865 | if (res < 0) | |
12866 | goto fail; | |
12867 | ||
12868 | if (op == CEPH_MDS_OP_RENAME) { | |
12869 | req->set_old_dentry(oldde); | |
12870 | req->old_dentry_drop = CEPH_CAP_FILE_SHARED; | |
12871 | req->old_dentry_unless = CEPH_CAP_FILE_EXCL; | |
12872 | ||
12873 | req->set_dentry(de); | |
12874 | req->dentry_drop = CEPH_CAP_FILE_SHARED; | |
12875 | req->dentry_unless = CEPH_CAP_FILE_EXCL; | |
12876 | ||
12877 | InodeRef oldin, otherin; | |
9f95a23c TL |
12878 | Inode *fromdir_root = nullptr; |
12879 | Inode *todir_root = nullptr; | |
12880 | int mask = 0; | |
12881 | bool quota_check = false; | |
12882 | if (fromdir != todir) { | |
12883 | fromdir_root = | |
12884 | fromdir->quota.is_enable() ? fromdir : get_quota_root(fromdir, perm); | |
12885 | todir_root = | |
12886 | todir->quota.is_enable() ? todir : get_quota_root(todir, perm); | |
12887 | ||
12888 | if (todir_root->quota.is_enable() && fromdir_root != todir_root) { | |
12889 | // use CEPH_STAT_RSTAT mask to force send getattr or lookup request | |
12890 | // to auth MDS to get latest rstat for todir_root and source dir | |
12891 | // even if their dentry caches and inode caps are satisfied. | |
12892 | res = _getattr(todir_root, CEPH_STAT_RSTAT, perm, true); | |
12893 | if (res < 0) | |
12894 | goto fail; | |
12895 | ||
12896 | quota_check = true; | |
12897 | if (oldde->inode && oldde->inode->is_dir()) { | |
12898 | mask |= CEPH_STAT_RSTAT; | |
12899 | } | |
12900 | } | |
12901 | } | |
12902 | ||
12903 | res = _lookup(fromdir, fromname, mask, &oldin, perm); | |
7c673cae FG |
12904 | if (res < 0) |
12905 | goto fail; | |
b32b8144 FG |
12906 | |
12907 | Inode *oldinode = oldin.get(); | |
12908 | oldinode->break_all_delegs(); | |
12909 | req->set_old_inode(oldinode); | |
7c673cae FG |
12910 | req->old_inode_drop = CEPH_CAP_LINK_SHARED; |
12911 | ||
9f95a23c TL |
12912 | if (quota_check) { |
12913 | int64_t old_bytes, old_files; | |
12914 | if (oldinode->is_dir()) { | |
12915 | old_bytes = oldinode->rstat.rbytes; | |
12916 | old_files = oldinode->rstat.rsize(); | |
12917 | } else { | |
12918 | old_bytes = oldinode->size; | |
12919 | old_files = 1; | |
12920 | } | |
12921 | ||
12922 | bool quota_exceed = false; | |
12923 | if (todir_root && todir_root->quota.max_bytes && | |
12924 | (old_bytes + todir_root->rstat.rbytes) >= todir_root->quota.max_bytes) { | |
12925 | ldout(cct, 10) << "_rename (" << oldinode->ino << " bytes=" | |
12926 | << old_bytes << ") to (" << todir->ino | |
12927 | << ") will exceed quota on " << *todir_root << dendl; | |
12928 | quota_exceed = true; | |
12929 | } | |
12930 | ||
12931 | if (todir_root && todir_root->quota.max_files && | |
12932 | (old_files + todir_root->rstat.rsize()) >= todir_root->quota.max_files) { | |
12933 | ldout(cct, 10) << "_rename (" << oldinode->ino << " files=" | |
12934 | << old_files << ") to (" << todir->ino | |
12935 | << ") will exceed quota on " << *todir_root << dendl; | |
12936 | quota_exceed = true; | |
12937 | } | |
12938 | ||
12939 | if (quota_exceed) { | |
12940 | res = (oldinode->is_dir()) ? -EXDEV : -EDQUOT; | |
12941 | goto fail; | |
12942 | } | |
12943 | } | |
12944 | ||
7c673cae | 12945 | res = _lookup(todir, toname, 0, &otherin, perm); |
b32b8144 FG |
12946 | switch (res) { |
12947 | case 0: | |
12948 | { | |
12949 | Inode *in = otherin.get(); | |
12950 | req->set_other_inode(in); | |
12951 | in->break_all_delegs(); | |
12952 | } | |
7c673cae | 12953 | req->other_inode_drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL; |
b32b8144 FG |
12954 | break; |
12955 | case -ENOENT: | |
12956 | break; | |
12957 | default: | |
12958 | goto fail; | |
7c673cae FG |
12959 | } |
12960 | ||
12961 | req->set_inode(todir); | |
12962 | } else { | |
12963 | // renamesnap reply contains no tracedn, so we need to invalidate | |
12964 | // dentry manually | |
12965 | unlink(oldde, true, true); | |
12966 | unlink(de, true, true); | |
11fdf7f2 TL |
12967 | |
12968 | req->set_inode(todir); | |
7c673cae FG |
12969 | } |
12970 | ||
12971 | res = make_request(req, perm, &target); | |
12972 | ldout(cct, 10) << "rename result is " << res << dendl; | |
12973 | ||
12974 | // renamed item from our cache | |
12975 | ||
12976 | trim_cache(); | |
1adf2230 | 12977 | ldout(cct, 8) << "_rename(" << from << ", " << to << ") = " << res << dendl; |
7c673cae FG |
12978 | return res; |
12979 | ||
12980 | fail: | |
12981 | put_request(req); | |
12982 | return res; | |
12983 | } | |
12984 | ||
12985 | int Client::ll_rename(Inode *parent, const char *name, Inode *newparent, | |
12986 | const char *newname, const UserPerm& perm) | |
12987 | { | |
11fdf7f2 | 12988 | std::lock_guard lock(client_lock); |
7c673cae | 12989 | |
181888fb FG |
12990 | if (unmounting) |
12991 | return -ENOTCONN; | |
12992 | ||
7c673cae FG |
12993 | vinodeno_t vparent = _get_vino(parent); |
12994 | vinodeno_t vnewparent = _get_vino(newparent); | |
12995 | ||
12996 | ldout(cct, 3) << "ll_rename " << vparent << " " << name << " to " | |
12997 | << vnewparent << " " << newname << dendl; | |
12998 | tout(cct) << "ll_rename" << std::endl; | |
12999 | tout(cct) << vparent.ino.val << std::endl; | |
13000 | tout(cct) << name << std::endl; | |
13001 | tout(cct) << vnewparent.ino.val << std::endl; | |
13002 | tout(cct) << newname << std::endl; | |
13003 | ||
11fdf7f2 | 13004 | if (!fuse_default_permissions) { |
7c673cae FG |
13005 | int r = may_delete(parent, name, perm); |
13006 | if (r < 0) | |
13007 | return r; | |
13008 | r = may_delete(newparent, newname, perm); | |
13009 | if (r < 0 && r != -ENOENT) | |
13010 | return r; | |
13011 | } | |
13012 | ||
13013 | return _rename(parent, name, newparent, newname, perm); | |
13014 | } | |
13015 | ||
13016 | int Client::_link(Inode *in, Inode *dir, const char *newname, const UserPerm& perm, InodeRef *inp) | |
13017 | { | |
1adf2230 | 13018 | ldout(cct, 8) << "_link(" << in->ino << " to " << dir->ino << " " << newname |
7c673cae FG |
13019 | << " uid " << perm.uid() << " gid " << perm.gid() << ")" << dendl; |
13020 | ||
13021 | if (strlen(newname) > NAME_MAX) | |
13022 | return -ENAMETOOLONG; | |
13023 | ||
13024 | if (in->snapid != CEPH_NOSNAP || dir->snapid != CEPH_NOSNAP) { | |
13025 | return -EROFS; | |
13026 | } | |
13027 | if (is_quota_files_exceeded(dir, perm)) { | |
13028 | return -EDQUOT; | |
13029 | } | |
13030 | ||
b32b8144 | 13031 | in->break_all_delegs(); |
7c673cae FG |
13032 | MetaRequest *req = new MetaRequest(CEPH_MDS_OP_LINK); |
13033 | ||
13034 | filepath path(newname, dir->ino); | |
13035 | req->set_filepath(path); | |
13036 | filepath existing(in->ino); | |
13037 | req->set_filepath2(existing); | |
13038 | ||
13039 | req->set_inode(dir); | |
13040 | req->inode_drop = CEPH_CAP_FILE_SHARED; | |
13041 | req->inode_unless = CEPH_CAP_FILE_EXCL; | |
13042 | ||
13043 | Dentry *de; | |
13044 | int res = get_or_create(dir, newname, &de); | |
13045 | if (res < 0) | |
13046 | goto fail; | |
13047 | req->set_dentry(de); | |
13048 | ||
13049 | res = make_request(req, perm, inp); | |
13050 | ldout(cct, 10) << "link result is " << res << dendl; | |
13051 | ||
13052 | trim_cache(); | |
1adf2230 | 13053 | ldout(cct, 8) << "link(" << existing << ", " << path << ") = " << res << dendl; |
7c673cae FG |
13054 | return res; |
13055 | ||
13056 | fail: | |
13057 | put_request(req); | |
13058 | return res; | |
13059 | } | |
13060 | ||
13061 | int Client::ll_link(Inode *in, Inode *newparent, const char *newname, | |
13062 | const UserPerm& perm) | |
13063 | { | |
11fdf7f2 | 13064 | std::lock_guard lock(client_lock); |
7c673cae | 13065 | |
181888fb FG |
13066 | if (unmounting) |
13067 | return -ENOTCONN; | |
13068 | ||
7c673cae FG |
13069 | vinodeno_t vino = _get_vino(in); |
13070 | vinodeno_t vnewparent = _get_vino(newparent); | |
13071 | ||
31f18b77 | 13072 | ldout(cct, 3) << "ll_link " << vino << " to " << vnewparent << " " << |
7c673cae FG |
13073 | newname << dendl; |
13074 | tout(cct) << "ll_link" << std::endl; | |
13075 | tout(cct) << vino.ino.val << std::endl; | |
13076 | tout(cct) << vnewparent << std::endl; | |
13077 | tout(cct) << newname << std::endl; | |
13078 | ||
7c673cae FG |
13079 | InodeRef target; |
13080 | ||
11fdf7f2 | 13081 | if (!fuse_default_permissions) { |
7c673cae FG |
13082 | if (S_ISDIR(in->mode)) |
13083 | return -EPERM; | |
13084 | ||
11fdf7f2 | 13085 | int r = may_hardlink(in, perm); |
7c673cae FG |
13086 | if (r < 0) |
13087 | return r; | |
13088 | ||
13089 | r = may_create(newparent, perm); | |
13090 | if (r < 0) | |
13091 | return r; | |
13092 | } | |
13093 | ||
13094 | return _link(in, newparent, newname, perm, &target); | |
13095 | } | |
13096 | ||
13097 | int Client::ll_num_osds(void) | |
13098 | { | |
11fdf7f2 | 13099 | std::lock_guard lock(client_lock); |
7c673cae FG |
13100 | return objecter->with_osdmap(std::mem_fn(&OSDMap::get_num_osds)); |
13101 | } | |
13102 | ||
13103 | int Client::ll_osdaddr(int osd, uint32_t *addr) | |
13104 | { | |
11fdf7f2 | 13105 | std::lock_guard lock(client_lock); |
181888fb | 13106 | |
7c673cae FG |
13107 | entity_addr_t g; |
13108 | bool exists = objecter->with_osdmap([&](const OSDMap& o) { | |
13109 | if (!o.exists(osd)) | |
13110 | return false; | |
11fdf7f2 | 13111 | g = o.get_addrs(osd).front(); |
7c673cae FG |
13112 | return true; |
13113 | }); | |
13114 | if (!exists) | |
13115 | return -1; | |
13116 | uint32_t nb_addr = (g.in4_addr()).sin_addr.s_addr; | |
13117 | *addr = ntohl(nb_addr); | |
13118 | return 0; | |
13119 | } | |
181888fb | 13120 | |
7c673cae FG |
13121 | uint32_t Client::ll_stripe_unit(Inode *in) |
13122 | { | |
11fdf7f2 | 13123 | std::lock_guard lock(client_lock); |
7c673cae FG |
13124 | return in->layout.stripe_unit; |
13125 | } | |
13126 | ||
13127 | uint64_t Client::ll_snap_seq(Inode *in) | |
13128 | { | |
11fdf7f2 | 13129 | std::lock_guard lock(client_lock); |
7c673cae FG |
13130 | return in->snaprealm->seq; |
13131 | } | |
13132 | ||
13133 | int Client::ll_file_layout(Inode *in, file_layout_t *layout) | |
13134 | { | |
11fdf7f2 | 13135 | std::lock_guard lock(client_lock); |
7c673cae FG |
13136 | *layout = in->layout; |
13137 | return 0; | |
13138 | } | |
13139 | ||
13140 | int Client::ll_file_layout(Fh *fh, file_layout_t *layout) | |
13141 | { | |
13142 | return ll_file_layout(fh->inode.get(), layout); | |
13143 | } | |
13144 | ||
13145 | /* Currently we cannot take advantage of redundancy in reads, since we | |
13146 | would have to go through all possible placement groups (a | |
13147 | potentially quite large number determined by a hash), and use CRUSH | |
13148 | to calculate the appropriate set of OSDs for each placement group, | |
13149 | then index into that. An array with one entry per OSD is much more | |
13150 | tractable and works for demonstration purposes. */ | |
13151 | ||
13152 | int Client::ll_get_stripe_osd(Inode *in, uint64_t blockno, | |
13153 | file_layout_t* layout) | |
13154 | { | |
11fdf7f2 | 13155 | std::lock_guard lock(client_lock); |
181888fb | 13156 | |
28e407b8 | 13157 | inodeno_t ino = in->ino; |
7c673cae FG |
13158 | uint32_t object_size = layout->object_size; |
13159 | uint32_t su = layout->stripe_unit; | |
13160 | uint32_t stripe_count = layout->stripe_count; | |
13161 | uint64_t stripes_per_object = object_size / su; | |
11fdf7f2 | 13162 | uint64_t stripeno = 0, stripepos = 0; |
7c673cae | 13163 | |
11fdf7f2 TL |
13164 | if(stripe_count) { |
13165 | stripeno = blockno / stripe_count; // which horizontal stripe (Y) | |
13166 | stripepos = blockno % stripe_count; // which object in the object set (X) | |
13167 | } | |
7c673cae FG |
13168 | uint64_t objectsetno = stripeno / stripes_per_object; // which object set |
13169 | uint64_t objectno = objectsetno * stripe_count + stripepos; // object id | |
13170 | ||
13171 | object_t oid = file_object_t(ino, objectno); | |
13172 | return objecter->with_osdmap([&](const OSDMap& o) { | |
13173 | ceph_object_layout olayout = | |
13174 | o.file_to_object_layout(oid, *layout); | |
13175 | pg_t pg = (pg_t)olayout.ol_pgid; | |
13176 | vector<int> osds; | |
13177 | int primary; | |
13178 | o.pg_to_acting_osds(pg, &osds, &primary); | |
13179 | return primary; | |
13180 | }); | |
13181 | } | |
13182 | ||
13183 | /* Return the offset of the block, internal to the object */ | |
13184 | ||
13185 | uint64_t Client::ll_get_internal_offset(Inode *in, uint64_t blockno) | |
13186 | { | |
11fdf7f2 | 13187 | std::lock_guard lock(client_lock); |
7c673cae FG |
13188 | file_layout_t *layout=&(in->layout); |
13189 | uint32_t object_size = layout->object_size; | |
13190 | uint32_t su = layout->stripe_unit; | |
13191 | uint64_t stripes_per_object = object_size / su; | |
13192 | ||
13193 | return (blockno % stripes_per_object) * su; | |
13194 | } | |
13195 | ||
13196 | int Client::ll_opendir(Inode *in, int flags, dir_result_t** dirpp, | |
13197 | const UserPerm& perms) | |
13198 | { | |
11fdf7f2 | 13199 | std::lock_guard lock(client_lock); |
7c673cae | 13200 | |
181888fb FG |
13201 | if (unmounting) |
13202 | return -ENOTCONN; | |
13203 | ||
7c673cae FG |
13204 | vinodeno_t vino = _get_vino(in); |
13205 | ||
13206 | ldout(cct, 3) << "ll_opendir " << vino << dendl; | |
13207 | tout(cct) << "ll_opendir" << std::endl; | |
13208 | tout(cct) << vino.ino.val << std::endl; | |
13209 | ||
11fdf7f2 | 13210 | if (!fuse_default_permissions) { |
7c673cae FG |
13211 | int r = may_open(in, flags, perms); |
13212 | if (r < 0) | |
13213 | return r; | |
13214 | } | |
13215 | ||
13216 | int r = _opendir(in, dirpp, perms); | |
13217 | tout(cct) << (unsigned long)*dirpp << std::endl; | |
13218 | ||
13219 | ldout(cct, 3) << "ll_opendir " << vino << " = " << r << " (" << *dirpp << ")" | |
13220 | << dendl; | |
13221 | return r; | |
13222 | } | |
13223 | ||
13224 | int Client::ll_releasedir(dir_result_t *dirp) | |
13225 | { | |
11fdf7f2 | 13226 | std::lock_guard lock(client_lock); |
7c673cae FG |
13227 | ldout(cct, 3) << "ll_releasedir " << dirp << dendl; |
13228 | tout(cct) << "ll_releasedir" << std::endl; | |
13229 | tout(cct) << (unsigned long)dirp << std::endl; | |
181888fb FG |
13230 | |
13231 | if (unmounting) | |
13232 | return -ENOTCONN; | |
13233 | ||
7c673cae FG |
13234 | _closedir(dirp); |
13235 | return 0; | |
13236 | } | |
13237 | ||
13238 | int Client::ll_fsyncdir(dir_result_t *dirp) | |
13239 | { | |
11fdf7f2 | 13240 | std::lock_guard lock(client_lock); |
7c673cae FG |
13241 | ldout(cct, 3) << "ll_fsyncdir " << dirp << dendl; |
13242 | tout(cct) << "ll_fsyncdir" << std::endl; | |
13243 | tout(cct) << (unsigned long)dirp << std::endl; | |
13244 | ||
181888fb FG |
13245 | if (unmounting) |
13246 | return -ENOTCONN; | |
13247 | ||
7c673cae FG |
13248 | return _fsync(dirp->inode.get(), false); |
13249 | } | |
13250 | ||
13251 | int Client::ll_open(Inode *in, int flags, Fh **fhp, const UserPerm& perms) | |
13252 | { | |
11fdf7f2 | 13253 | ceph_assert(!(flags & O_CREAT)); |
7c673cae | 13254 | |
11fdf7f2 | 13255 | std::lock_guard lock(client_lock); |
7c673cae | 13256 | |
181888fb FG |
13257 | if (unmounting) |
13258 | return -ENOTCONN; | |
13259 | ||
7c673cae FG |
13260 | vinodeno_t vino = _get_vino(in); |
13261 | ||
13262 | ldout(cct, 3) << "ll_open " << vino << " " << ceph_flags_sys2wire(flags) << dendl; | |
13263 | tout(cct) << "ll_open" << std::endl; | |
13264 | tout(cct) << vino.ino.val << std::endl; | |
13265 | tout(cct) << ceph_flags_sys2wire(flags) << std::endl; | |
13266 | ||
13267 | int r; | |
11fdf7f2 | 13268 | if (!fuse_default_permissions) { |
7c673cae FG |
13269 | r = may_open(in, flags, perms); |
13270 | if (r < 0) | |
13271 | goto out; | |
13272 | } | |
13273 | ||
13274 | r = _open(in, flags, 0, fhp /* may be NULL */, perms); | |
13275 | ||
13276 | out: | |
13277 | Fh *fhptr = fhp ? *fhp : NULL; | |
13278 | if (fhptr) { | |
13279 | ll_unclosed_fh_set.insert(fhptr); | |
13280 | } | |
13281 | tout(cct) << (unsigned long)fhptr << std::endl; | |
13282 | ldout(cct, 3) << "ll_open " << vino << " " << ceph_flags_sys2wire(flags) << | |
13283 | " = " << r << " (" << fhptr << ")" << dendl; | |
13284 | return r; | |
13285 | } | |
13286 | ||
13287 | int Client::_ll_create(Inode *parent, const char *name, mode_t mode, | |
13288 | int flags, InodeRef *in, int caps, Fh **fhp, | |
13289 | const UserPerm& perms) | |
13290 | { | |
13291 | *fhp = NULL; | |
13292 | ||
13293 | vinodeno_t vparent = _get_vino(parent); | |
13294 | ||
1adf2230 | 13295 | ldout(cct, 8) << "_ll_create " << vparent << " " << name << " 0" << oct << |
7c673cae FG |
13296 | mode << dec << " " << ceph_flags_sys2wire(flags) << ", uid " << perms.uid() |
13297 | << ", gid " << perms.gid() << dendl; | |
13298 | tout(cct) << "ll_create" << std::endl; | |
13299 | tout(cct) << vparent.ino.val << std::endl; | |
13300 | tout(cct) << name << std::endl; | |
13301 | tout(cct) << mode << std::endl; | |
13302 | tout(cct) << ceph_flags_sys2wire(flags) << std::endl; | |
13303 | ||
13304 | bool created = false; | |
13305 | int r = _lookup(parent, name, caps, in, perms); | |
13306 | ||
13307 | if (r == 0 && (flags & O_CREAT) && (flags & O_EXCL)) | |
13308 | return -EEXIST; | |
13309 | ||
13310 | if (r == -ENOENT && (flags & O_CREAT)) { | |
11fdf7f2 | 13311 | if (!fuse_default_permissions) { |
7c673cae FG |
13312 | r = may_create(parent, perms); |
13313 | if (r < 0) | |
13314 | goto out; | |
13315 | } | |
13316 | r = _create(parent, name, flags, mode, in, fhp, 0, 0, 0, NULL, &created, | |
13317 | perms); | |
13318 | if (r < 0) | |
13319 | goto out; | |
13320 | } | |
13321 | ||
13322 | if (r < 0) | |
13323 | goto out; | |
13324 | ||
11fdf7f2 | 13325 | ceph_assert(*in); |
7c673cae FG |
13326 | |
13327 | ldout(cct, 20) << "_ll_create created = " << created << dendl; | |
13328 | if (!created) { | |
11fdf7f2 | 13329 | if (!fuse_default_permissions) { |
7c673cae FG |
13330 | r = may_open(in->get(), flags, perms); |
13331 | if (r < 0) { | |
13332 | if (*fhp) { | |
13333 | int release_r = _release_fh(*fhp); | |
11fdf7f2 | 13334 | ceph_assert(release_r == 0); // during create, no async data ops should have happened |
7c673cae FG |
13335 | } |
13336 | goto out; | |
13337 | } | |
13338 | } | |
13339 | if (*fhp == NULL) { | |
13340 | r = _open(in->get(), flags, mode, fhp, perms); | |
13341 | if (r < 0) | |
13342 | goto out; | |
13343 | } | |
13344 | } | |
13345 | ||
13346 | out: | |
13347 | if (*fhp) { | |
13348 | ll_unclosed_fh_set.insert(*fhp); | |
13349 | } | |
13350 | ||
13351 | ino_t ino = 0; | |
13352 | if (r >= 0) { | |
13353 | Inode *inode = in->get(); | |
13354 | if (use_faked_inos()) | |
13355 | ino = inode->faked_ino; | |
13356 | else | |
13357 | ino = inode->ino; | |
13358 | } | |
13359 | ||
13360 | tout(cct) << (unsigned long)*fhp << std::endl; | |
13361 | tout(cct) << ino << std::endl; | |
1adf2230 | 13362 | ldout(cct, 8) << "_ll_create " << vparent << " " << name << " 0" << oct << |
7c673cae FG |
13363 | mode << dec << " " << ceph_flags_sys2wire(flags) << " = " << r << " (" << |
13364 | *fhp << " " << hex << ino << dec << ")" << dendl; | |
13365 | ||
13366 | return r; | |
13367 | } | |
13368 | ||
13369 | int Client::ll_create(Inode *parent, const char *name, mode_t mode, | |
13370 | int flags, struct stat *attr, Inode **outp, Fh **fhp, | |
13371 | const UserPerm& perms) | |
13372 | { | |
11fdf7f2 | 13373 | std::lock_guard lock(client_lock); |
7c673cae FG |
13374 | InodeRef in; |
13375 | ||
181888fb FG |
13376 | if (unmounting) |
13377 | return -ENOTCONN; | |
13378 | ||
7c673cae FG |
13379 | int r = _ll_create(parent, name, mode, flags, &in, CEPH_STAT_CAP_INODE_ALL, |
13380 | fhp, perms); | |
13381 | if (r >= 0) { | |
11fdf7f2 | 13382 | ceph_assert(in); |
7c673cae FG |
13383 | |
13384 | // passing an Inode in outp requires an additional ref | |
13385 | if (outp) { | |
13386 | _ll_get(in.get()); | |
13387 | *outp = in.get(); | |
13388 | } | |
13389 | fill_stat(in, attr); | |
13390 | } else { | |
13391 | attr->st_ino = 0; | |
13392 | } | |
13393 | ||
13394 | return r; | |
13395 | } | |
13396 | ||
13397 | int Client::ll_createx(Inode *parent, const char *name, mode_t mode, | |
13398 | int oflags, Inode **outp, Fh **fhp, | |
13399 | struct ceph_statx *stx, unsigned want, unsigned lflags, | |
13400 | const UserPerm& perms) | |
13401 | { | |
13402 | unsigned caps = statx_to_mask(lflags, want); | |
11fdf7f2 | 13403 | std::lock_guard lock(client_lock); |
7c673cae FG |
13404 | InodeRef in; |
13405 | ||
181888fb FG |
13406 | if (unmounting) |
13407 | return -ENOTCONN; | |
7c673cae FG |
13408 | |
13409 | int r = _ll_create(parent, name, mode, oflags, &in, caps, fhp, perms); | |
13410 | if (r >= 0) { | |
11fdf7f2 | 13411 | ceph_assert(in); |
7c673cae FG |
13412 | |
13413 | // passing an Inode in outp requires an additional ref | |
13414 | if (outp) { | |
13415 | _ll_get(in.get()); | |
13416 | *outp = in.get(); | |
13417 | } | |
13418 | fill_statx(in, caps, stx); | |
13419 | } else { | |
13420 | stx->stx_ino = 0; | |
13421 | stx->stx_mask = 0; | |
13422 | } | |
13423 | ||
13424 | return r; | |
13425 | } | |
13426 | ||
13427 | loff_t Client::ll_lseek(Fh *fh, loff_t offset, int whence) | |
13428 | { | |
11fdf7f2 | 13429 | std::lock_guard lock(client_lock); |
7c673cae FG |
13430 | tout(cct) << "ll_lseek" << std::endl; |
13431 | tout(cct) << offset << std::endl; | |
13432 | tout(cct) << whence << std::endl; | |
13433 | ||
181888fb FG |
13434 | if (unmounting) |
13435 | return -ENOTCONN; | |
13436 | ||
7c673cae FG |
13437 | return _lseek(fh, offset, whence); |
13438 | } | |
13439 | ||
13440 | int Client::ll_read(Fh *fh, loff_t off, loff_t len, bufferlist *bl) | |
13441 | { | |
11fdf7f2 | 13442 | std::lock_guard lock(client_lock); |
7c673cae FG |
13443 | ldout(cct, 3) << "ll_read " << fh << " " << fh->inode->ino << " " << " " << off << "~" << len << dendl; |
13444 | tout(cct) << "ll_read" << std::endl; | |
13445 | tout(cct) << (unsigned long)fh << std::endl; | |
13446 | tout(cct) << off << std::endl; | |
13447 | tout(cct) << len << std::endl; | |
13448 | ||
181888fb FG |
13449 | if (unmounting) |
13450 | return -ENOTCONN; | |
13451 | ||
11fdf7f2 TL |
13452 | /* We can't return bytes written larger than INT_MAX, clamp len to that */ |
13453 | len = std::min(len, (loff_t)INT_MAX); | |
f6b5b4d7 TL |
13454 | int r = _read(fh, off, len, bl); |
13455 | ldout(cct, 3) << "ll_read " << fh << " " << off << "~" << len << " = " << r | |
13456 | << dendl; | |
13457 | return r; | |
7c673cae FG |
13458 | } |
13459 | ||
13460 | int Client::ll_read_block(Inode *in, uint64_t blockid, | |
13461 | char *buf, | |
13462 | uint64_t offset, | |
13463 | uint64_t length, | |
13464 | file_layout_t* layout) | |
13465 | { | |
11fdf7f2 | 13466 | std::lock_guard lock(client_lock); |
181888fb FG |
13467 | |
13468 | if (unmounting) | |
13469 | return -ENOTCONN; | |
13470 | ||
b32b8144 | 13471 | vinodeno_t vino = _get_vino(in); |
7c673cae FG |
13472 | object_t oid = file_object_t(vino.ino, blockid); |
13473 | C_SaferCond onfinish; | |
13474 | bufferlist bl; | |
13475 | ||
13476 | objecter->read(oid, | |
13477 | object_locator_t(layout->pool_id), | |
13478 | offset, | |
13479 | length, | |
13480 | vino.snapid, | |
13481 | &bl, | |
13482 | CEPH_OSD_FLAG_READ, | |
13483 | &onfinish); | |
13484 | ||
9f95a23c | 13485 | client_lock.unlock(); |
7c673cae | 13486 | int r = onfinish.wait(); |
9f95a23c | 13487 | client_lock.lock(); |
7c673cae FG |
13488 | |
13489 | if (r >= 0) { | |
9f95a23c | 13490 | bl.begin().copy(bl.length(), buf); |
7c673cae FG |
13491 | r = bl.length(); |
13492 | } | |
13493 | ||
13494 | return r; | |
13495 | } | |
13496 | ||
13497 | /* It appears that the OSD doesn't return success unless the entire | |
13498 | buffer was written, return the write length on success. */ | |
13499 | ||
13500 | int Client::ll_write_block(Inode *in, uint64_t blockid, | |
13501 | char* buf, uint64_t offset, | |
13502 | uint64_t length, file_layout_t* layout, | |
13503 | uint64_t snapseq, uint32_t sync) | |
13504 | { | |
7c673cae | 13505 | vinodeno_t vino = ll_get_vino(in); |
7c673cae | 13506 | int r = 0; |
11fdf7f2 TL |
13507 | std::unique_ptr<C_SaferCond> onsafe = nullptr; |
13508 | ||
7c673cae FG |
13509 | if (length == 0) { |
13510 | return -EINVAL; | |
13511 | } | |
13512 | if (true || sync) { | |
13513 | /* if write is stable, the epilogue is waiting on | |
13514 | * flock */ | |
11fdf7f2 | 13515 | onsafe.reset(new C_SaferCond("Client::ll_write_block flock")); |
7c673cae FG |
13516 | } |
13517 | object_t oid = file_object_t(vino.ino, blockid); | |
13518 | SnapContext fakesnap; | |
11fdf7f2 TL |
13519 | ceph::bufferlist bl; |
13520 | if (length > 0) { | |
13521 | bl.push_back(buffer::copy(buf, length)); | |
13522 | } | |
7c673cae FG |
13523 | |
13524 | ldout(cct, 1) << "ll_block_write for " << vino.ino << "." << blockid | |
13525 | << dendl; | |
13526 | ||
13527 | fakesnap.seq = snapseq; | |
13528 | ||
13529 | /* lock just in time */ | |
9f95a23c | 13530 | client_lock.lock(); |
181888fb | 13531 | if (unmounting) { |
9f95a23c | 13532 | client_lock.unlock(); |
181888fb FG |
13533 | return -ENOTCONN; |
13534 | } | |
7c673cae FG |
13535 | |
13536 | objecter->write(oid, | |
13537 | object_locator_t(layout->pool_id), | |
13538 | offset, | |
13539 | length, | |
13540 | fakesnap, | |
13541 | bl, | |
13542 | ceph::real_clock::now(), | |
13543 | 0, | |
11fdf7f2 | 13544 | onsafe.get()); |
7c673cae | 13545 | |
9f95a23c | 13546 | client_lock.unlock(); |
11fdf7f2 TL |
13547 | if (nullptr != onsafe) { |
13548 | r = onsafe->wait(); | |
7c673cae FG |
13549 | } |
13550 | ||
13551 | if (r < 0) { | |
13552 | return r; | |
13553 | } else { | |
13554 | return length; | |
13555 | } | |
13556 | } | |
13557 | ||
13558 | int Client::ll_commit_blocks(Inode *in, | |
13559 | uint64_t offset, | |
13560 | uint64_t length) | |
13561 | { | |
11fdf7f2 | 13562 | std::lock_guard lock(client_lock); |
7c673cae FG |
13563 | /* |
13564 | BarrierContext *bctx; | |
b32b8144 | 13565 | vinodeno_t vino = _get_vino(in); |
7c673cae FG |
13566 | uint64_t ino = vino.ino; |
13567 | ||
13568 | ldout(cct, 1) << "ll_commit_blocks for " << vino.ino << " from " | |
13569 | << offset << " to " << length << dendl; | |
13570 | ||
13571 | if (length == 0) { | |
13572 | return -EINVAL; | |
13573 | } | |
13574 | ||
13575 | map<uint64_t, BarrierContext*>::iterator p = barriers.find(ino); | |
13576 | if (p != barriers.end()) { | |
13577 | barrier_interval civ(offset, offset + length); | |
13578 | p->second->commit_barrier(civ); | |
13579 | } | |
13580 | */ | |
13581 | return 0; | |
13582 | } | |
13583 | ||
13584 | int Client::ll_write(Fh *fh, loff_t off, loff_t len, const char *data) | |
13585 | { | |
11fdf7f2 | 13586 | std::lock_guard lock(client_lock); |
7c673cae FG |
13587 | ldout(cct, 3) << "ll_write " << fh << " " << fh->inode->ino << " " << off << |
13588 | "~" << len << dendl; | |
13589 | tout(cct) << "ll_write" << std::endl; | |
13590 | tout(cct) << (unsigned long)fh << std::endl; | |
13591 | tout(cct) << off << std::endl; | |
13592 | tout(cct) << len << std::endl; | |
13593 | ||
181888fb FG |
13594 | if (unmounting) |
13595 | return -ENOTCONN; | |
13596 | ||
11fdf7f2 TL |
13597 | /* We can't return bytes written larger than INT_MAX, clamp len to that */ |
13598 | len = std::min(len, (loff_t)INT_MAX); | |
7c673cae FG |
13599 | int r = _write(fh, off, len, data, NULL, 0); |
13600 | ldout(cct, 3) << "ll_write " << fh << " " << off << "~" << len << " = " << r | |
13601 | << dendl; | |
13602 | return r; | |
13603 | } | |
13604 | ||
11fdf7f2 TL |
13605 | int64_t Client::ll_writev(struct Fh *fh, const struct iovec *iov, int iovcnt, int64_t off) |
13606 | { | |
13607 | std::lock_guard lock(client_lock); | |
13608 | if (unmounting) | |
13609 | return -ENOTCONN; | |
13610 | return _preadv_pwritev_locked(fh, iov, iovcnt, off, true, false); | |
13611 | } | |
13612 | ||
13613 | int64_t Client::ll_readv(struct Fh *fh, const struct iovec *iov, int iovcnt, int64_t off) | |
13614 | { | |
13615 | std::lock_guard lock(client_lock); | |
13616 | if (unmounting) | |
13617 | return -ENOTCONN; | |
13618 | return _preadv_pwritev_locked(fh, iov, iovcnt, off, false, false); | |
13619 | } | |
13620 | ||
7c673cae FG |
13621 | int Client::ll_flush(Fh *fh) |
13622 | { | |
11fdf7f2 | 13623 | std::lock_guard lock(client_lock); |
7c673cae FG |
13624 | ldout(cct, 3) << "ll_flush " << fh << " " << fh->inode->ino << " " << dendl; |
13625 | tout(cct) << "ll_flush" << std::endl; | |
13626 | tout(cct) << (unsigned long)fh << std::endl; | |
13627 | ||
181888fb FG |
13628 | if (unmounting) |
13629 | return -ENOTCONN; | |
13630 | ||
7c673cae FG |
13631 | return _flush(fh); |
13632 | } | |
13633 | ||
13634 | int Client::ll_fsync(Fh *fh, bool syncdataonly) | |
13635 | { | |
11fdf7f2 | 13636 | std::lock_guard lock(client_lock); |
7c673cae FG |
13637 | ldout(cct, 3) << "ll_fsync " << fh << " " << fh->inode->ino << " " << dendl; |
13638 | tout(cct) << "ll_fsync" << std::endl; | |
13639 | tout(cct) << (unsigned long)fh << std::endl; | |
13640 | ||
181888fb FG |
13641 | if (unmounting) |
13642 | return -ENOTCONN; | |
13643 | ||
7c673cae FG |
13644 | int r = _fsync(fh, syncdataonly); |
13645 | if (r) { | |
13646 | // If we're returning an error, clear it from the FH | |
13647 | fh->take_async_err(); | |
13648 | } | |
13649 | return r; | |
13650 | } | |
13651 | ||
28e407b8 AA |
13652 | int Client::ll_sync_inode(Inode *in, bool syncdataonly) |
13653 | { | |
11fdf7f2 | 13654 | std::lock_guard lock(client_lock); |
28e407b8 AA |
13655 | ldout(cct, 3) << "ll_sync_inode " << *in << " " << dendl; |
13656 | tout(cct) << "ll_sync_inode" << std::endl; | |
13657 | tout(cct) << (unsigned long)in << std::endl; | |
13658 | ||
13659 | if (unmounting) | |
13660 | return -ENOTCONN; | |
13661 | ||
13662 | return _fsync(in, syncdataonly); | |
13663 | } | |
13664 | ||
7c673cae FG |
13665 | #ifdef FALLOC_FL_PUNCH_HOLE |
13666 | ||
13667 | int Client::_fallocate(Fh *fh, int mode, int64_t offset, int64_t length) | |
13668 | { | |
13669 | if (offset < 0 || length <= 0) | |
13670 | return -EINVAL; | |
13671 | ||
13672 | if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE)) | |
13673 | return -EOPNOTSUPP; | |
13674 | ||
13675 | if ((mode & FALLOC_FL_PUNCH_HOLE) && !(mode & FALLOC_FL_KEEP_SIZE)) | |
13676 | return -EOPNOTSUPP; | |
13677 | ||
13678 | Inode *in = fh->inode.get(); | |
13679 | ||
13680 | if (objecter->osdmap_pool_full(in->layout.pool_id) && | |
13681 | !(mode & FALLOC_FL_PUNCH_HOLE)) { | |
13682 | return -ENOSPC; | |
13683 | } | |
13684 | ||
13685 | if (in->snapid != CEPH_NOSNAP) | |
13686 | return -EROFS; | |
13687 | ||
13688 | if ((fh->mode & CEPH_FILE_MODE_WR) == 0) | |
13689 | return -EBADF; | |
13690 | ||
13691 | uint64_t size = offset + length; | |
13692 | if (!(mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE)) && | |
13693 | size > in->size && | |
11fdf7f2 | 13694 | is_quota_bytes_exceeded(in, size - in->size, fh->actor_perms)) { |
7c673cae FG |
13695 | return -EDQUOT; |
13696 | } | |
13697 | ||
13698 | int have; | |
f6b5b4d7 | 13699 | int r = get_caps(fh, CEPH_CAP_FILE_WR, CEPH_CAP_FILE_BUFFER, &have, -1); |
7c673cae FG |
13700 | if (r < 0) |
13701 | return r; | |
13702 | ||
11fdf7f2 | 13703 | std::unique_ptr<C_SaferCond> onuninline = nullptr; |
7c673cae FG |
13704 | if (mode & FALLOC_FL_PUNCH_HOLE) { |
13705 | if (in->inline_version < CEPH_INLINE_NONE && | |
13706 | (have & CEPH_CAP_FILE_BUFFER)) { | |
13707 | bufferlist bl; | |
9f95a23c | 13708 | auto inline_iter = in->inline_data.cbegin(); |
7c673cae FG |
13709 | int len = in->inline_data.length(); |
13710 | if (offset < len) { | |
13711 | if (offset > 0) | |
9f95a23c | 13712 | inline_iter.copy(offset, bl); |
7c673cae FG |
13713 | int size = length; |
13714 | if (offset + size > len) | |
13715 | size = len - offset; | |
13716 | if (size > 0) | |
13717 | bl.append_zero(size); | |
9f95a23c TL |
13718 | if (offset + size < len) { |
13719 | inline_iter += size; | |
13720 | inline_iter.copy(len - offset - size, bl); | |
13721 | } | |
7c673cae FG |
13722 | in->inline_data = bl; |
13723 | in->inline_version++; | |
13724 | } | |
91327a77 | 13725 | in->mtime = in->ctime = ceph_clock_now(); |
7c673cae | 13726 | in->change_attr++; |
28e407b8 | 13727 | in->mark_caps_dirty(CEPH_CAP_FILE_WR); |
7c673cae FG |
13728 | } else { |
13729 | if (in->inline_version < CEPH_INLINE_NONE) { | |
11fdf7f2 TL |
13730 | onuninline.reset(new C_SaferCond("Client::_fallocate_uninline_data flock")); |
13731 | uninline_data(in, onuninline.get()); | |
7c673cae FG |
13732 | } |
13733 | ||
11fdf7f2 | 13734 | C_SaferCond onfinish("Client::_punch_hole flock"); |
7c673cae FG |
13735 | |
13736 | unsafe_sync_write++; | |
13737 | get_cap_ref(in, CEPH_CAP_FILE_BUFFER); | |
13738 | ||
13739 | _invalidate_inode_cache(in, offset, length); | |
13740 | filer->zero(in->ino, &in->layout, | |
13741 | in->snaprealm->get_snap_context(), | |
13742 | offset, length, | |
13743 | ceph::real_clock::now(), | |
11fdf7f2 | 13744 | 0, true, &onfinish); |
91327a77 | 13745 | in->mtime = in->ctime = ceph_clock_now(); |
7c673cae | 13746 | in->change_attr++; |
28e407b8 | 13747 | in->mark_caps_dirty(CEPH_CAP_FILE_WR); |
7c673cae | 13748 | |
9f95a23c | 13749 | client_lock.unlock(); |
11fdf7f2 | 13750 | onfinish.wait(); |
9f95a23c | 13751 | client_lock.lock(); |
7c673cae FG |
13752 | _sync_write_commit(in); |
13753 | } | |
13754 | } else if (!(mode & FALLOC_FL_KEEP_SIZE)) { | |
13755 | uint64_t size = offset + length; | |
13756 | if (size > in->size) { | |
13757 | in->size = size; | |
91327a77 | 13758 | in->mtime = in->ctime = ceph_clock_now(); |
7c673cae | 13759 | in->change_attr++; |
28e407b8 | 13760 | in->mark_caps_dirty(CEPH_CAP_FILE_WR); |
7c673cae | 13761 | |
11fdf7f2 | 13762 | if (is_quota_bytes_approaching(in, fh->actor_perms)) { |
7c673cae | 13763 | check_caps(in, CHECK_CAPS_NODELAY); |
31f18b77 FG |
13764 | } else if (is_max_size_approaching(in)) { |
13765 | check_caps(in, 0); | |
7c673cae FG |
13766 | } |
13767 | } | |
13768 | } | |
13769 | ||
11fdf7f2 | 13770 | if (nullptr != onuninline) { |
9f95a23c | 13771 | client_lock.unlock(); |
11fdf7f2 | 13772 | int ret = onuninline->wait(); |
9f95a23c | 13773 | client_lock.lock(); |
7c673cae | 13774 | |
11fdf7f2 | 13775 | if (ret >= 0 || ret == -ECANCELED) { |
7c673cae FG |
13776 | in->inline_data.clear(); |
13777 | in->inline_version = CEPH_INLINE_NONE; | |
28e407b8 | 13778 | in->mark_caps_dirty(CEPH_CAP_FILE_WR); |
7c673cae FG |
13779 | check_caps(in, 0); |
13780 | } else | |
11fdf7f2 | 13781 | r = ret; |
7c673cae FG |
13782 | } |
13783 | ||
13784 | put_cap_ref(in, CEPH_CAP_FILE_WR); | |
13785 | return r; | |
13786 | } | |
13787 | #else | |
13788 | ||
13789 | int Client::_fallocate(Fh *fh, int mode, int64_t offset, int64_t length) | |
13790 | { | |
13791 | return -EOPNOTSUPP; | |
13792 | } | |
13793 | ||
13794 | #endif | |
13795 | ||
13796 | ||
11fdf7f2 | 13797 | int Client::ll_fallocate(Fh *fh, int mode, int64_t offset, int64_t length) |
7c673cae | 13798 | { |
11fdf7f2 TL |
13799 | std::lock_guard lock(client_lock); |
13800 | ldout(cct, 3) << __func__ << " " << fh << " " << fh->inode->ino << " " << dendl; | |
13801 | tout(cct) << __func__ << " " << mode << " " << offset << " " << length << std::endl; | |
7c673cae FG |
13802 | tout(cct) << (unsigned long)fh << std::endl; |
13803 | ||
181888fb FG |
13804 | if (unmounting) |
13805 | return -ENOTCONN; | |
13806 | ||
7c673cae FG |
13807 | return _fallocate(fh, mode, offset, length); |
13808 | } | |
13809 | ||
13810 | int Client::fallocate(int fd, int mode, loff_t offset, loff_t length) | |
13811 | { | |
11fdf7f2 TL |
13812 | std::lock_guard lock(client_lock); |
13813 | tout(cct) << __func__ << " " << " " << fd << mode << " " << offset << " " << length << std::endl; | |
7c673cae | 13814 | |
181888fb FG |
13815 | if (unmounting) |
13816 | return -ENOTCONN; | |
13817 | ||
7c673cae FG |
13818 | Fh *fh = get_filehandle(fd); |
13819 | if (!fh) | |
13820 | return -EBADF; | |
13821 | #if defined(__linux__) && defined(O_PATH) | |
13822 | if (fh->flags & O_PATH) | |
13823 | return -EBADF; | |
13824 | #endif | |
13825 | return _fallocate(fh, mode, offset, length); | |
13826 | } | |
13827 | ||
13828 | int Client::ll_release(Fh *fh) | |
13829 | { | |
11fdf7f2 | 13830 | std::lock_guard lock(client_lock); |
91327a77 AA |
13831 | |
13832 | if (unmounting) | |
13833 | return -ENOTCONN; | |
13834 | ||
11fdf7f2 | 13835 | ldout(cct, 3) << __func__ << " (fh)" << fh << " " << fh->inode->ino << " " << |
7c673cae | 13836 | dendl; |
11fdf7f2 | 13837 | tout(cct) << __func__ << " (fh)" << std::endl; |
7c673cae FG |
13838 | tout(cct) << (unsigned long)fh << std::endl; |
13839 | ||
13840 | if (ll_unclosed_fh_set.count(fh)) | |
13841 | ll_unclosed_fh_set.erase(fh); | |
13842 | return _release_fh(fh); | |
13843 | } | |
13844 | ||
13845 | int Client::ll_getlk(Fh *fh, struct flock *fl, uint64_t owner) | |
13846 | { | |
11fdf7f2 | 13847 | std::lock_guard lock(client_lock); |
7c673cae FG |
13848 | |
13849 | ldout(cct, 3) << "ll_getlk (fh)" << fh << " " << fh->inode->ino << dendl; | |
13850 | tout(cct) << "ll_getk (fh)" << (unsigned long)fh << std::endl; | |
13851 | ||
181888fb FG |
13852 | if (unmounting) |
13853 | return -ENOTCONN; | |
13854 | ||
7c673cae FG |
13855 | return _getlk(fh, fl, owner); |
13856 | } | |
13857 | ||
13858 | int Client::ll_setlk(Fh *fh, struct flock *fl, uint64_t owner, int sleep) | |
13859 | { | |
11fdf7f2 | 13860 | std::lock_guard lock(client_lock); |
7c673cae | 13861 | |
11fdf7f2 TL |
13862 | ldout(cct, 3) << __func__ << " (fh) " << fh << " " << fh->inode->ino << dendl; |
13863 | tout(cct) << __func__ << " (fh)" << (unsigned long)fh << std::endl; | |
7c673cae | 13864 | |
181888fb FG |
13865 | if (unmounting) |
13866 | return -ENOTCONN; | |
13867 | ||
7c673cae FG |
13868 | return _setlk(fh, fl, owner, sleep); |
13869 | } | |
13870 | ||
13871 | int Client::ll_flock(Fh *fh, int cmd, uint64_t owner) | |
13872 | { | |
11fdf7f2 | 13873 | std::lock_guard lock(client_lock); |
7c673cae | 13874 | |
11fdf7f2 TL |
13875 | ldout(cct, 3) << __func__ << " (fh) " << fh << " " << fh->inode->ino << dendl; |
13876 | tout(cct) << __func__ << " (fh)" << (unsigned long)fh << std::endl; | |
7c673cae | 13877 | |
181888fb FG |
13878 | if (unmounting) |
13879 | return -ENOTCONN; | |
13880 | ||
7c673cae FG |
13881 | return _flock(fh, cmd, owner); |
13882 | } | |
13883 | ||
b32b8144 FG |
13884 | int Client::set_deleg_timeout(uint32_t timeout) |
13885 | { | |
11fdf7f2 | 13886 | std::lock_guard lock(client_lock); |
b32b8144 FG |
13887 | |
13888 | /* | |
13889 | * The whole point is to prevent blacklisting so we must time out the | |
13890 | * delegation before the session autoclose timeout kicks in. | |
13891 | */ | |
13892 | if (timeout >= mdsmap->get_session_autoclose()) | |
13893 | return -EINVAL; | |
13894 | ||
13895 | deleg_timeout = timeout; | |
13896 | return 0; | |
13897 | } | |
13898 | ||
13899 | int Client::ll_delegation(Fh *fh, unsigned cmd, ceph_deleg_cb_t cb, void *priv) | |
13900 | { | |
13901 | int ret = -EINVAL; | |
13902 | ||
11fdf7f2 | 13903 | std::lock_guard lock(client_lock); |
b32b8144 FG |
13904 | |
13905 | if (!mounted) | |
13906 | return -ENOTCONN; | |
13907 | ||
13908 | Inode *inode = fh->inode.get(); | |
13909 | ||
13910 | switch(cmd) { | |
13911 | case CEPH_DELEGATION_NONE: | |
13912 | inode->unset_deleg(fh); | |
13913 | ret = 0; | |
13914 | break; | |
13915 | default: | |
13916 | try { | |
13917 | ret = inode->set_deleg(fh, cmd, cb, priv); | |
11fdf7f2 | 13918 | } catch (std::bad_alloc&) { |
b32b8144 FG |
13919 | ret = -ENOMEM; |
13920 | } | |
13921 | break; | |
13922 | } | |
13923 | return ret; | |
13924 | } | |
13925 | ||
7c673cae FG |
13926 | class C_Client_RequestInterrupt : public Context { |
13927 | private: | |
13928 | Client *client; | |
13929 | MetaRequest *req; | |
13930 | public: | |
13931 | C_Client_RequestInterrupt(Client *c, MetaRequest *r) : client(c), req(r) { | |
13932 | req->get(); | |
13933 | } | |
13934 | void finish(int r) override { | |
11fdf7f2 TL |
13935 | std::lock_guard l(client->client_lock); |
13936 | ceph_assert(req->head.op == CEPH_MDS_OP_SETFILELOCK); | |
7c673cae FG |
13937 | client->_interrupt_filelock(req); |
13938 | client->put_request(req); | |
13939 | } | |
13940 | }; | |
13941 | ||
13942 | void Client::ll_interrupt(void *d) | |
13943 | { | |
13944 | MetaRequest *req = static_cast<MetaRequest*>(d); | |
11fdf7f2 TL |
13945 | ldout(cct, 3) << __func__ << " tid " << req->get_tid() << dendl; |
13946 | tout(cct) << __func__ << " tid " << req->get_tid() << std::endl; | |
7c673cae FG |
13947 | interrupt_finisher.queue(new C_Client_RequestInterrupt(this, req)); |
13948 | } | |
13949 | ||
13950 | // ========================================= | |
13951 | // layout | |
13952 | ||
13953 | // expose file layouts | |
13954 | ||
13955 | int Client::describe_layout(const char *relpath, file_layout_t *lp, | |
13956 | const UserPerm& perms) | |
13957 | { | |
11fdf7f2 | 13958 | std::lock_guard lock(client_lock); |
7c673cae | 13959 | |
181888fb FG |
13960 | if (unmounting) |
13961 | return -ENOTCONN; | |
13962 | ||
7c673cae FG |
13963 | filepath path(relpath); |
13964 | InodeRef in; | |
13965 | int r = path_walk(path, &in, perms); | |
13966 | if (r < 0) | |
13967 | return r; | |
13968 | ||
13969 | *lp = in->layout; | |
13970 | ||
11fdf7f2 | 13971 | ldout(cct, 3) << __func__ << "(" << relpath << ") = 0" << dendl; |
7c673cae FG |
13972 | return 0; |
13973 | } | |
13974 | ||
13975 | int Client::fdescribe_layout(int fd, file_layout_t *lp) | |
13976 | { | |
11fdf7f2 | 13977 | std::lock_guard lock(client_lock); |
7c673cae | 13978 | |
181888fb FG |
13979 | if (unmounting) |
13980 | return -ENOTCONN; | |
13981 | ||
7c673cae FG |
13982 | Fh *f = get_filehandle(fd); |
13983 | if (!f) | |
13984 | return -EBADF; | |
13985 | Inode *in = f->inode.get(); | |
13986 | ||
13987 | *lp = in->layout; | |
13988 | ||
11fdf7f2 | 13989 | ldout(cct, 3) << __func__ << "(" << fd << ") = 0" << dendl; |
7c673cae FG |
13990 | return 0; |
13991 | } | |
13992 | ||
d2e6a577 FG |
13993 | int64_t Client::get_default_pool_id() |
13994 | { | |
11fdf7f2 | 13995 | std::lock_guard lock(client_lock); |
181888fb FG |
13996 | |
13997 | if (unmounting) | |
13998 | return -ENOTCONN; | |
13999 | ||
d2e6a577 FG |
14000 | /* first data pool is the default */ |
14001 | return mdsmap->get_first_data_pool(); | |
14002 | } | |
7c673cae FG |
14003 | |
14004 | // expose osdmap | |
14005 | ||
14006 | int64_t Client::get_pool_id(const char *pool_name) | |
14007 | { | |
11fdf7f2 | 14008 | std::lock_guard lock(client_lock); |
181888fb FG |
14009 | |
14010 | if (unmounting) | |
14011 | return -ENOTCONN; | |
14012 | ||
7c673cae FG |
14013 | return objecter->with_osdmap(std::mem_fn(&OSDMap::lookup_pg_pool_name), |
14014 | pool_name); | |
14015 | } | |
14016 | ||
14017 | string Client::get_pool_name(int64_t pool) | |
14018 | { | |
11fdf7f2 | 14019 | std::lock_guard lock(client_lock); |
181888fb FG |
14020 | |
14021 | if (unmounting) | |
14022 | return string(); | |
14023 | ||
7c673cae FG |
14024 | return objecter->with_osdmap([pool](const OSDMap& o) { |
14025 | return o.have_pg_pool(pool) ? o.get_pool_name(pool) : string(); | |
14026 | }); | |
14027 | } | |
14028 | ||
14029 | int Client::get_pool_replication(int64_t pool) | |
14030 | { | |
11fdf7f2 | 14031 | std::lock_guard lock(client_lock); |
181888fb FG |
14032 | |
14033 | if (unmounting) | |
14034 | return -ENOTCONN; | |
14035 | ||
7c673cae FG |
14036 | return objecter->with_osdmap([pool](const OSDMap& o) { |
14037 | return o.have_pg_pool(pool) ? o.get_pg_pool(pool)->get_size() : -ENOENT; | |
14038 | }); | |
14039 | } | |
14040 | ||
14041 | int Client::get_file_extent_osds(int fd, loff_t off, loff_t *len, vector<int>& osds) | |
14042 | { | |
11fdf7f2 | 14043 | std::lock_guard lock(client_lock); |
7c673cae | 14044 | |
181888fb FG |
14045 | if (unmounting) |
14046 | return -ENOTCONN; | |
14047 | ||
7c673cae FG |
14048 | Fh *f = get_filehandle(fd); |
14049 | if (!f) | |
14050 | return -EBADF; | |
14051 | Inode *in = f->inode.get(); | |
14052 | ||
14053 | vector<ObjectExtent> extents; | |
14054 | Striper::file_to_extents(cct, in->ino, &in->layout, off, 1, in->truncate_size, extents); | |
11fdf7f2 | 14055 | ceph_assert(extents.size() == 1); |
7c673cae FG |
14056 | |
14057 | objecter->with_osdmap([&](const OSDMap& o) { | |
14058 | pg_t pg = o.object_locator_to_pg(extents[0].oid, extents[0].oloc); | |
14059 | o.pg_to_acting_osds(pg, osds); | |
14060 | }); | |
14061 | ||
14062 | if (osds.empty()) | |
14063 | return -EINVAL; | |
14064 | ||
14065 | /* | |
14066 | * Return the remainder of the extent (stripe unit) | |
14067 | * | |
14068 | * If length = 1 is passed to Striper::file_to_extents we get a single | |
14069 | * extent back, but its length is one so we still need to compute the length | |
14070 | * to the end of the stripe unit. | |
14071 | * | |
14072 | * If length = su then we may get 1 or 2 objects back in the extents vector | |
14073 | * which would have to be examined. Even then, the offsets are local to the | |
14074 | * object, so matching up to the file offset is extra work. | |
14075 | * | |
14076 | * It seems simpler to stick with length = 1 and manually compute the | |
14077 | * remainder. | |
14078 | */ | |
14079 | if (len) { | |
14080 | uint64_t su = in->layout.stripe_unit; | |
14081 | *len = su - (off % su); | |
14082 | } | |
14083 | ||
14084 | return 0; | |
14085 | } | |
14086 | ||
14087 | int Client::get_osd_crush_location(int id, vector<pair<string, string> >& path) | |
14088 | { | |
11fdf7f2 | 14089 | std::lock_guard lock(client_lock); |
181888fb FG |
14090 | |
14091 | if (unmounting) | |
14092 | return -ENOTCONN; | |
14093 | ||
7c673cae FG |
14094 | if (id < 0) |
14095 | return -EINVAL; | |
14096 | return objecter->with_osdmap([&](const OSDMap& o) { | |
14097 | return o.crush->get_full_location_ordered(id, path); | |
14098 | }); | |
14099 | } | |
14100 | ||
14101 | int Client::get_file_stripe_address(int fd, loff_t offset, | |
14102 | vector<entity_addr_t>& address) | |
14103 | { | |
11fdf7f2 | 14104 | std::lock_guard lock(client_lock); |
7c673cae | 14105 | |
181888fb FG |
14106 | if (unmounting) |
14107 | return -ENOTCONN; | |
14108 | ||
7c673cae FG |
14109 | Fh *f = get_filehandle(fd); |
14110 | if (!f) | |
14111 | return -EBADF; | |
14112 | Inode *in = f->inode.get(); | |
14113 | ||
14114 | // which object? | |
14115 | vector<ObjectExtent> extents; | |
14116 | Striper::file_to_extents(cct, in->ino, &in->layout, offset, 1, | |
14117 | in->truncate_size, extents); | |
11fdf7f2 | 14118 | ceph_assert(extents.size() == 1); |
7c673cae FG |
14119 | |
14120 | // now we have the object and its 'layout' | |
14121 | return objecter->with_osdmap([&](const OSDMap& o) { | |
14122 | pg_t pg = o.object_locator_to_pg(extents[0].oid, extents[0].oloc); | |
14123 | vector<int> osds; | |
14124 | o.pg_to_acting_osds(pg, osds); | |
14125 | if (osds.empty()) | |
14126 | return -EINVAL; | |
14127 | for (unsigned i = 0; i < osds.size(); i++) { | |
11fdf7f2 | 14128 | entity_addr_t addr = o.get_addrs(osds[i]).front(); |
7c673cae FG |
14129 | address.push_back(addr); |
14130 | } | |
14131 | return 0; | |
14132 | }); | |
14133 | } | |
14134 | ||
14135 | int Client::get_osd_addr(int osd, entity_addr_t& addr) | |
14136 | { | |
11fdf7f2 | 14137 | std::lock_guard lock(client_lock); |
181888fb FG |
14138 | |
14139 | if (unmounting) | |
14140 | return -ENOTCONN; | |
14141 | ||
7c673cae FG |
14142 | return objecter->with_osdmap([&](const OSDMap& o) { |
14143 | if (!o.exists(osd)) | |
14144 | return -ENOENT; | |
14145 | ||
11fdf7f2 | 14146 | addr = o.get_addrs(osd).front(); |
7c673cae FG |
14147 | return 0; |
14148 | }); | |
14149 | } | |
14150 | ||
14151 | int Client::enumerate_layout(int fd, vector<ObjectExtent>& result, | |
14152 | loff_t length, loff_t offset) | |
14153 | { | |
11fdf7f2 | 14154 | std::lock_guard lock(client_lock); |
7c673cae | 14155 | |
181888fb FG |
14156 | if (unmounting) |
14157 | return -ENOTCONN; | |
14158 | ||
7c673cae FG |
14159 | Fh *f = get_filehandle(fd); |
14160 | if (!f) | |
14161 | return -EBADF; | |
14162 | Inode *in = f->inode.get(); | |
14163 | ||
14164 | // map to a list of extents | |
14165 | Striper::file_to_extents(cct, in->ino, &in->layout, offset, length, in->truncate_size, result); | |
14166 | ||
11fdf7f2 | 14167 | ldout(cct, 3) << __func__ << "(" << fd << ", " << length << ", " << offset << ") = 0" << dendl; |
7c673cae FG |
14168 | return 0; |
14169 | } | |
14170 | ||
14171 | ||
b32b8144 | 14172 | /* find an osd with the same ip. -ENXIO if none. */ |
7c673cae FG |
14173 | int Client::get_local_osd() |
14174 | { | |
11fdf7f2 | 14175 | std::lock_guard lock(client_lock); |
181888fb FG |
14176 | |
14177 | if (unmounting) | |
14178 | return -ENOTCONN; | |
14179 | ||
7c673cae FG |
14180 | objecter->with_osdmap([this](const OSDMap& o) { |
14181 | if (o.get_epoch() != local_osd_epoch) { | |
11fdf7f2 | 14182 | local_osd = o.find_osd_on_ip(messenger->get_myaddrs().front()); |
7c673cae FG |
14183 | local_osd_epoch = o.get_epoch(); |
14184 | } | |
14185 | }); | |
14186 | return local_osd; | |
14187 | } | |
14188 | ||
14189 | ||
14190 | ||
14191 | ||
14192 | ||
14193 | ||
14194 | // =============================== | |
14195 | ||
14196 | void Client::ms_handle_connect(Connection *con) | |
14197 | { | |
11fdf7f2 | 14198 | ldout(cct, 10) << __func__ << " on " << con->get_peer_addr() << dendl; |
7c673cae FG |
14199 | } |
14200 | ||
14201 | bool Client::ms_handle_reset(Connection *con) | |
14202 | { | |
11fdf7f2 | 14203 | ldout(cct, 0) << __func__ << " on " << con->get_peer_addr() << dendl; |
7c673cae FG |
14204 | return false; |
14205 | } | |
14206 | ||
14207 | void Client::ms_handle_remote_reset(Connection *con) | |
14208 | { | |
11fdf7f2 TL |
14209 | ldout(cct, 0) << __func__ << " on " << con->get_peer_addr() << dendl; |
14210 | std::lock_guard l(client_lock); | |
7c673cae FG |
14211 | switch (con->get_peer_type()) { |
14212 | case CEPH_ENTITY_TYPE_MDS: | |
14213 | { | |
14214 | // kludge to figure out which mds this is; fixme with a Connection* state | |
14215 | mds_rank_t mds = MDS_RANK_NONE; | |
14216 | MetaSession *s = NULL; | |
11fdf7f2 TL |
14217 | for (auto &p : mds_sessions) { |
14218 | if (mdsmap->get_addrs(p.first) == con->get_peer_addrs()) { | |
14219 | mds = p.first; | |
14220 | s = &p.second; | |
7c673cae FG |
14221 | } |
14222 | } | |
14223 | if (mds >= 0) { | |
d2e6a577 | 14224 | assert (s != NULL); |
7c673cae FG |
14225 | switch (s->state) { |
14226 | case MetaSession::STATE_CLOSING: | |
14227 | ldout(cct, 1) << "reset from mds we were closing; we'll call that closed" << dendl; | |
14228 | _closed_mds_session(s); | |
14229 | break; | |
14230 | ||
14231 | case MetaSession::STATE_OPENING: | |
14232 | { | |
14233 | ldout(cct, 1) << "reset from mds we were opening; retrying" << dendl; | |
14234 | list<Context*> waiters; | |
14235 | waiters.swap(s->waiting_for_open); | |
14236 | _closed_mds_session(s); | |
14237 | MetaSession *news = _get_or_open_mds_session(mds); | |
14238 | news->waiting_for_open.swap(waiters); | |
14239 | } | |
14240 | break; | |
14241 | ||
14242 | case MetaSession::STATE_OPEN: | |
14243 | { | |
28e407b8 | 14244 | objecter->maybe_request_map(); /* to check if we are blacklisted */ |
f6b5b4d7 | 14245 | if (cct->_conf.get_val<bool>("client_reconnect_stale")) { |
7c673cae FG |
14246 | ldout(cct, 1) << "reset from mds we were open; close mds session for reconnect" << dendl; |
14247 | _closed_mds_session(s); | |
14248 | } else { | |
14249 | ldout(cct, 1) << "reset from mds we were open; mark session as stale" << dendl; | |
14250 | s->state = MetaSession::STATE_STALE; | |
14251 | } | |
14252 | } | |
14253 | break; | |
14254 | ||
14255 | case MetaSession::STATE_NEW: | |
14256 | case MetaSession::STATE_CLOSED: | |
14257 | default: | |
14258 | break; | |
14259 | } | |
14260 | } | |
14261 | } | |
14262 | break; | |
14263 | } | |
14264 | } | |
14265 | ||
14266 | bool Client::ms_handle_refused(Connection *con) | |
14267 | { | |
11fdf7f2 | 14268 | ldout(cct, 1) << __func__ << " on " << con->get_peer_addr() << dendl; |
7c673cae FG |
14269 | return false; |
14270 | } | |
14271 | ||
7c673cae FG |
14272 | Inode *Client::get_quota_root(Inode *in, const UserPerm& perms) |
14273 | { | |
11fdf7f2 TL |
14274 | Inode *quota_in = root_ancestor; |
14275 | SnapRealm *realm = in->snaprealm; | |
14276 | while (realm) { | |
14277 | ldout(cct, 10) << __func__ << " realm " << realm->ino << dendl; | |
14278 | if (realm->ino != in->ino) { | |
14279 | auto p = inode_map.find(vinodeno_t(realm->ino, CEPH_NOSNAP)); | |
14280 | if (p == inode_map.end()) | |
14281 | break; | |
7c673cae | 14282 | |
11fdf7f2 TL |
14283 | if (p->second->quota.is_enable()) { |
14284 | quota_in = p->second; | |
14285 | break; | |
7c673cae | 14286 | } |
7c673cae | 14287 | } |
11fdf7f2 | 14288 | realm = realm->pparent; |
7c673cae | 14289 | } |
11fdf7f2 TL |
14290 | ldout(cct, 10) << __func__ << " " << in->vino() << " -> " << quota_in->vino() << dendl; |
14291 | return quota_in; | |
7c673cae FG |
14292 | } |
14293 | ||
14294 | /** | |
14295 | * Traverse quota ancestors of the Inode, return true | |
14296 | * if any of them passes the passed function | |
14297 | */ | |
14298 | bool Client::check_quota_condition(Inode *in, const UserPerm& perms, | |
14299 | std::function<bool (const Inode &in)> test) | |
14300 | { | |
14301 | while (true) { | |
11fdf7f2 | 14302 | ceph_assert(in != NULL); |
7c673cae FG |
14303 | if (test(*in)) { |
14304 | return true; | |
14305 | } | |
14306 | ||
14307 | if (in == root_ancestor) { | |
14308 | // We're done traversing, drop out | |
14309 | return false; | |
14310 | } else { | |
14311 | // Continue up the tree | |
14312 | in = get_quota_root(in, perms); | |
14313 | } | |
14314 | } | |
14315 | ||
14316 | return false; | |
14317 | } | |
14318 | ||
14319 | bool Client::is_quota_files_exceeded(Inode *in, const UserPerm& perms) | |
14320 | { | |
14321 | return check_quota_condition(in, perms, | |
14322 | [](const Inode &in) { | |
14323 | return in.quota.max_files && in.rstat.rsize() >= in.quota.max_files; | |
14324 | }); | |
14325 | } | |
14326 | ||
14327 | bool Client::is_quota_bytes_exceeded(Inode *in, int64_t new_bytes, | |
11fdf7f2 | 14328 | const UserPerm& perms) |
7c673cae FG |
14329 | { |
14330 | return check_quota_condition(in, perms, | |
11fdf7f2 | 14331 | [&new_bytes](const Inode &in) { |
7c673cae FG |
14332 | return in.quota.max_bytes && (in.rstat.rbytes + new_bytes) |
14333 | > in.quota.max_bytes; | |
14334 | }); | |
14335 | } | |
14336 | ||
11fdf7f2 | 14337 | bool Client::is_quota_bytes_approaching(Inode *in, const UserPerm& perms) |
7c673cae | 14338 | { |
9f95a23c TL |
14339 | ceph_assert(in->size >= in->reported_size); |
14340 | const uint64_t size = in->size - in->reported_size; | |
11fdf7f2 | 14341 | return check_quota_condition(in, perms, |
9f95a23c | 14342 | [&size](const Inode &in) { |
11fdf7f2 TL |
14343 | if (in.quota.max_bytes) { |
14344 | if (in.rstat.rbytes >= in.quota.max_bytes) { | |
14345 | return true; | |
14346 | } | |
14347 | ||
11fdf7f2 | 14348 | const uint64_t space = in.quota.max_bytes - in.rstat.rbytes; |
11fdf7f2 TL |
14349 | return (space >> 4) < size; |
14350 | } else { | |
14351 | return false; | |
14352 | } | |
14353 | }); | |
7c673cae FG |
14354 | } |
14355 | ||
14356 | enum { | |
14357 | POOL_CHECKED = 1, | |
14358 | POOL_CHECKING = 2, | |
14359 | POOL_READ = 4, | |
14360 | POOL_WRITE = 8, | |
14361 | }; | |
14362 | ||
14363 | int Client::check_pool_perm(Inode *in, int need) | |
14364 | { | |
14365 | if (!cct->_conf->client_check_pool_perm) | |
14366 | return 0; | |
14367 | ||
7f7e6c64 TL |
14368 | /* Only need to do this for regular files */ |
14369 | if (!in->is_file()) | |
14370 | return 0; | |
14371 | ||
7c673cae FG |
14372 | int64_t pool_id = in->layout.pool_id; |
14373 | std::string pool_ns = in->layout.pool_ns; | |
14374 | std::pair<int64_t, std::string> perm_key(pool_id, pool_ns); | |
14375 | int have = 0; | |
14376 | while (true) { | |
14377 | auto it = pool_perms.find(perm_key); | |
14378 | if (it == pool_perms.end()) | |
14379 | break; | |
14380 | if (it->second == POOL_CHECKING) { | |
14381 | // avoid concurrent checkings | |
14382 | wait_on_list(waiting_for_pool_perm); | |
14383 | } else { | |
14384 | have = it->second; | |
11fdf7f2 | 14385 | ceph_assert(have & POOL_CHECKED); |
7c673cae FG |
14386 | break; |
14387 | } | |
14388 | } | |
14389 | ||
14390 | if (!have) { | |
14391 | if (in->snapid != CEPH_NOSNAP) { | |
14392 | // pool permission check needs to write to the first object. But for snapshot, | |
14393 | // head of the first object may have alread been deleted. To avoid creating | |
14394 | // orphan object, skip the check for now. | |
14395 | return 0; | |
14396 | } | |
14397 | ||
14398 | pool_perms[perm_key] = POOL_CHECKING; | |
14399 | ||
14400 | char oid_buf[32]; | |
14401 | snprintf(oid_buf, sizeof(oid_buf), "%llx.00000000", (unsigned long long)in->ino); | |
14402 | object_t oid = oid_buf; | |
14403 | ||
14404 | SnapContext nullsnapc; | |
14405 | ||
14406 | C_SaferCond rd_cond; | |
14407 | ObjectOperation rd_op; | |
14408 | rd_op.stat(NULL, (ceph::real_time*)nullptr, NULL); | |
14409 | ||
14410 | objecter->mutate(oid, OSDMap::file_to_object_locator(in->layout), rd_op, | |
14411 | nullsnapc, ceph::real_clock::now(), 0, &rd_cond); | |
14412 | ||
14413 | C_SaferCond wr_cond; | |
14414 | ObjectOperation wr_op; | |
14415 | wr_op.create(true); | |
14416 | ||
14417 | objecter->mutate(oid, OSDMap::file_to_object_locator(in->layout), wr_op, | |
14418 | nullsnapc, ceph::real_clock::now(), 0, &wr_cond); | |
14419 | ||
9f95a23c | 14420 | client_lock.unlock(); |
7c673cae FG |
14421 | int rd_ret = rd_cond.wait(); |
14422 | int wr_ret = wr_cond.wait(); | |
9f95a23c | 14423 | client_lock.lock(); |
7c673cae FG |
14424 | |
14425 | bool errored = false; | |
14426 | ||
14427 | if (rd_ret == 0 || rd_ret == -ENOENT) | |
14428 | have |= POOL_READ; | |
14429 | else if (rd_ret != -EPERM) { | |
11fdf7f2 | 14430 | ldout(cct, 10) << __func__ << " on pool " << pool_id << " ns " << pool_ns |
7c673cae FG |
14431 | << " rd_err = " << rd_ret << " wr_err = " << wr_ret << dendl; |
14432 | errored = true; | |
14433 | } | |
14434 | ||
14435 | if (wr_ret == 0 || wr_ret == -EEXIST) | |
14436 | have |= POOL_WRITE; | |
14437 | else if (wr_ret != -EPERM) { | |
11fdf7f2 | 14438 | ldout(cct, 10) << __func__ << " on pool " << pool_id << " ns " << pool_ns |
7c673cae FG |
14439 | << " rd_err = " << rd_ret << " wr_err = " << wr_ret << dendl; |
14440 | errored = true; | |
14441 | } | |
14442 | ||
14443 | if (errored) { | |
14444 | // Indeterminate: erase CHECKING state so that subsequent calls re-check. | |
14445 | // Raise EIO because actual error code might be misleading for | |
14446 | // userspace filesystem user. | |
14447 | pool_perms.erase(perm_key); | |
14448 | signal_cond_list(waiting_for_pool_perm); | |
14449 | return -EIO; | |
14450 | } | |
14451 | ||
14452 | pool_perms[perm_key] = have | POOL_CHECKED; | |
14453 | signal_cond_list(waiting_for_pool_perm); | |
14454 | } | |
14455 | ||
14456 | if ((need & CEPH_CAP_FILE_RD) && !(have & POOL_READ)) { | |
11fdf7f2 | 14457 | ldout(cct, 10) << __func__ << " on pool " << pool_id << " ns " << pool_ns |
7c673cae FG |
14458 | << " need " << ccap_string(need) << ", but no read perm" << dendl; |
14459 | return -EPERM; | |
14460 | } | |
14461 | if ((need & CEPH_CAP_FILE_WR) && !(have & POOL_WRITE)) { | |
11fdf7f2 | 14462 | ldout(cct, 10) << __func__ << " on pool " << pool_id << " ns " << pool_ns |
7c673cae FG |
14463 | << " need " << ccap_string(need) << ", but no write perm" << dendl; |
14464 | return -EPERM; | |
14465 | } | |
14466 | ||
14467 | return 0; | |
14468 | } | |
14469 | ||
14470 | int Client::_posix_acl_permission(Inode *in, const UserPerm& perms, unsigned want) | |
14471 | { | |
14472 | if (acl_type == POSIX_ACL) { | |
14473 | if (in->xattrs.count(ACL_EA_ACCESS)) { | |
14474 | const bufferptr& access_acl = in->xattrs[ACL_EA_ACCESS]; | |
14475 | ||
14476 | return posix_acl_permits(access_acl, in->uid, in->gid, perms, want); | |
14477 | } | |
14478 | } | |
14479 | return -EAGAIN; | |
14480 | } | |
14481 | ||
14482 | int Client::_posix_acl_chmod(Inode *in, mode_t mode, const UserPerm& perms) | |
14483 | { | |
14484 | if (acl_type == NO_ACL) | |
14485 | return 0; | |
14486 | ||
14487 | int r = _getattr(in, CEPH_STAT_CAP_XATTR, perms, in->xattr_version == 0); | |
14488 | if (r < 0) | |
14489 | goto out; | |
14490 | ||
14491 | if (acl_type == POSIX_ACL) { | |
14492 | if (in->xattrs.count(ACL_EA_ACCESS)) { | |
14493 | const bufferptr& access_acl = in->xattrs[ACL_EA_ACCESS]; | |
14494 | bufferptr acl(access_acl.c_str(), access_acl.length()); | |
14495 | r = posix_acl_access_chmod(acl, mode); | |
14496 | if (r < 0) | |
14497 | goto out; | |
14498 | r = _do_setxattr(in, ACL_EA_ACCESS, acl.c_str(), acl.length(), 0, perms); | |
14499 | } else { | |
14500 | r = 0; | |
14501 | } | |
14502 | } | |
14503 | out: | |
14504 | ldout(cct, 10) << __func__ << " ino " << in->ino << " result=" << r << dendl; | |
14505 | return r; | |
14506 | } | |
14507 | ||
14508 | int Client::_posix_acl_create(Inode *dir, mode_t *mode, bufferlist& xattrs_bl, | |
14509 | const UserPerm& perms) | |
14510 | { | |
14511 | if (acl_type == NO_ACL) | |
14512 | return 0; | |
14513 | ||
14514 | if (S_ISLNK(*mode)) | |
14515 | return 0; | |
14516 | ||
14517 | int r = _getattr(dir, CEPH_STAT_CAP_XATTR, perms, dir->xattr_version == 0); | |
14518 | if (r < 0) | |
14519 | goto out; | |
14520 | ||
14521 | if (acl_type == POSIX_ACL) { | |
14522 | if (dir->xattrs.count(ACL_EA_DEFAULT)) { | |
14523 | map<string, bufferptr> xattrs; | |
14524 | ||
14525 | const bufferptr& default_acl = dir->xattrs[ACL_EA_DEFAULT]; | |
14526 | bufferptr acl(default_acl.c_str(), default_acl.length()); | |
14527 | r = posix_acl_inherit_mode(acl, mode); | |
14528 | if (r < 0) | |
14529 | goto out; | |
14530 | ||
14531 | if (r > 0) { | |
14532 | r = posix_acl_equiv_mode(acl.c_str(), acl.length(), mode); | |
14533 | if (r < 0) | |
14534 | goto out; | |
14535 | if (r > 0) | |
14536 | xattrs[ACL_EA_ACCESS] = acl; | |
14537 | } | |
14538 | ||
14539 | if (S_ISDIR(*mode)) | |
14540 | xattrs[ACL_EA_DEFAULT] = dir->xattrs[ACL_EA_DEFAULT]; | |
14541 | ||
14542 | r = xattrs.size(); | |
14543 | if (r > 0) | |
11fdf7f2 | 14544 | encode(xattrs, xattrs_bl); |
7c673cae FG |
14545 | } else { |
14546 | if (umask_cb) | |
14547 | *mode &= ~umask_cb(callback_handle); | |
14548 | r = 0; | |
14549 | } | |
14550 | } | |
14551 | out: | |
14552 | ldout(cct, 10) << __func__ << " dir ino " << dir->ino << " result=" << r << dendl; | |
14553 | return r; | |
14554 | } | |
14555 | ||
14556 | void Client::set_filer_flags(int flags) | |
14557 | { | |
11fdf7f2 TL |
14558 | std::lock_guard l(client_lock); |
14559 | ceph_assert(flags == 0 || | |
7c673cae FG |
14560 | flags == CEPH_OSD_FLAG_LOCALIZE_READS); |
14561 | objecter->add_global_op_flags(flags); | |
14562 | } | |
14563 | ||
14564 | void Client::clear_filer_flags(int flags) | |
14565 | { | |
11fdf7f2 TL |
14566 | std::lock_guard l(client_lock); |
14567 | ceph_assert(flags == CEPH_OSD_FLAG_LOCALIZE_READS); | |
7c673cae FG |
14568 | objecter->clear_global_op_flag(flags); |
14569 | } | |
14570 | ||
11fdf7f2 TL |
14571 | // called before mount |
14572 | void Client::set_uuid(const std::string& uuid) | |
14573 | { | |
14574 | std::lock_guard l(client_lock); | |
14575 | assert(initialized); | |
14576 | assert(!uuid.empty()); | |
14577 | ||
14578 | metadata["uuid"] = uuid; | |
14579 | _close_sessions(); | |
14580 | } | |
14581 | ||
14582 | // called before mount. 0 means infinite | |
14583 | void Client::set_session_timeout(unsigned timeout) | |
14584 | { | |
14585 | std::lock_guard l(client_lock); | |
14586 | assert(initialized); | |
14587 | ||
14588 | metadata["timeout"] = stringify(timeout); | |
14589 | } | |
14590 | ||
14591 | // called before mount | |
14592 | int Client::start_reclaim(const std::string& uuid, unsigned flags, | |
14593 | const std::string& fs_name) | |
14594 | { | |
14595 | std::lock_guard l(client_lock); | |
14596 | if (!initialized) | |
14597 | return -ENOTCONN; | |
14598 | ||
14599 | if (uuid.empty()) | |
14600 | return -EINVAL; | |
14601 | ||
14602 | { | |
14603 | auto it = metadata.find("uuid"); | |
14604 | if (it != metadata.end() && it->second == uuid) | |
14605 | return -EINVAL; | |
14606 | } | |
14607 | ||
14608 | int r = subscribe_mdsmap(fs_name); | |
14609 | if (r < 0) { | |
14610 | lderr(cct) << "mdsmap subscription failed: " << cpp_strerror(r) << dendl; | |
14611 | return r; | |
14612 | } | |
14613 | ||
14614 | if (metadata.empty()) | |
14615 | populate_metadata(""); | |
14616 | ||
14617 | while (mdsmap->get_epoch() == 0) | |
14618 | wait_on_list(waiting_for_mdsmap); | |
14619 | ||
14620 | reclaim_errno = 0; | |
14621 | for (unsigned mds = 0; mds < mdsmap->get_num_in_mds(); ) { | |
14622 | if (!mdsmap->is_up(mds)) { | |
14623 | ldout(cct, 10) << "mds." << mds << " not active, waiting for new mdsmap" << dendl; | |
14624 | wait_on_list(waiting_for_mdsmap); | |
14625 | continue; | |
14626 | } | |
14627 | ||
14628 | MetaSession *session; | |
14629 | if (!have_open_session(mds)) { | |
14630 | session = _get_or_open_mds_session(mds); | |
f6b5b4d7 TL |
14631 | if (session->state == MetaSession::STATE_REJECTED) |
14632 | return -EPERM; | |
11fdf7f2 TL |
14633 | if (session->state != MetaSession::STATE_OPENING) { |
14634 | // umounting? | |
14635 | return -EINVAL; | |
14636 | } | |
14637 | ldout(cct, 10) << "waiting for session to mds." << mds << " to open" << dendl; | |
14638 | wait_on_context_list(session->waiting_for_open); | |
11fdf7f2 TL |
14639 | continue; |
14640 | } | |
14641 | ||
14642 | session = &mds_sessions.at(mds); | |
14643 | if (!session->mds_features.test(CEPHFS_FEATURE_RECLAIM_CLIENT)) | |
14644 | return -EOPNOTSUPP; | |
14645 | ||
14646 | if (session->reclaim_state == MetaSession::RECLAIM_NULL || | |
14647 | session->reclaim_state == MetaSession::RECLAIMING) { | |
14648 | session->reclaim_state = MetaSession::RECLAIMING; | |
9f95a23c | 14649 | auto m = make_message<MClientReclaim>(uuid, flags); |
11fdf7f2 TL |
14650 | session->con->send_message2(std::move(m)); |
14651 | wait_on_list(waiting_for_reclaim); | |
14652 | } else if (session->reclaim_state == MetaSession::RECLAIM_FAIL) { | |
14653 | return reclaim_errno ? : -ENOTRECOVERABLE; | |
14654 | } else { | |
14655 | mds++; | |
14656 | } | |
14657 | } | |
14658 | ||
14659 | // didn't find target session in any mds | |
14660 | if (reclaim_target_addrs.empty()) { | |
14661 | if (flags & CEPH_RECLAIM_RESET) | |
14662 | return -ENOENT; | |
14663 | return -ENOTRECOVERABLE; | |
14664 | } | |
14665 | ||
14666 | if (flags & CEPH_RECLAIM_RESET) | |
14667 | return 0; | |
14668 | ||
14669 | // use blacklist to check if target session was killed | |
14670 | // (config option mds_session_blacklist_on_evict needs to be true) | |
14671 | C_SaferCond cond; | |
14672 | if (!objecter->wait_for_map(reclaim_osd_epoch, &cond)) { | |
14673 | ldout(cct, 10) << __func__ << ": waiting for OSD epoch " << reclaim_osd_epoch << dendl; | |
9f95a23c | 14674 | client_lock.unlock(); |
11fdf7f2 | 14675 | cond.wait(); |
9f95a23c | 14676 | client_lock.lock(); |
11fdf7f2 TL |
14677 | } |
14678 | ||
14679 | bool blacklisted = objecter->with_osdmap( | |
14680 | [this](const OSDMap &osd_map) -> bool { | |
14681 | return osd_map.is_blacklisted(reclaim_target_addrs); | |
14682 | }); | |
14683 | if (blacklisted) | |
14684 | return -ENOTRECOVERABLE; | |
14685 | ||
14686 | metadata["reclaiming_uuid"] = uuid; | |
14687 | return 0; | |
14688 | } | |
14689 | ||
14690 | void Client::finish_reclaim() | |
14691 | { | |
14692 | auto it = metadata.find("reclaiming_uuid"); | |
14693 | if (it == metadata.end()) { | |
14694 | for (auto &p : mds_sessions) | |
14695 | p.second.reclaim_state = MetaSession::RECLAIM_NULL; | |
14696 | return; | |
14697 | } | |
14698 | ||
14699 | for (auto &p : mds_sessions) { | |
14700 | p.second.reclaim_state = MetaSession::RECLAIM_NULL; | |
9f95a23c | 14701 | auto m = make_message<MClientReclaim>("", MClientReclaim::FLAG_FINISH); |
11fdf7f2 TL |
14702 | p.second.con->send_message2(std::move(m)); |
14703 | } | |
14704 | ||
14705 | metadata["uuid"] = it->second; | |
14706 | metadata.erase(it); | |
14707 | } | |
14708 | ||
14709 | void Client::handle_client_reclaim_reply(const MConstRef<MClientReclaimReply>& reply) | |
14710 | { | |
14711 | mds_rank_t from = mds_rank_t(reply->get_source().num()); | |
14712 | ldout(cct, 10) << __func__ << " " << *reply << " from mds." << from << dendl; | |
14713 | ||
14714 | MetaSession *session = _get_mds_session(from, reply->get_connection().get()); | |
14715 | if (!session) { | |
14716 | ldout(cct, 10) << " discarding reclaim reply from sessionless mds." << from << dendl; | |
14717 | return; | |
14718 | } | |
14719 | ||
14720 | if (reply->get_result() >= 0) { | |
14721 | session->reclaim_state = MetaSession::RECLAIM_OK; | |
14722 | if (reply->get_epoch() > reclaim_osd_epoch) | |
14723 | reclaim_osd_epoch = reply->get_epoch(); | |
14724 | if (!reply->get_addrs().empty()) | |
14725 | reclaim_target_addrs = reply->get_addrs(); | |
14726 | } else { | |
14727 | session->reclaim_state = MetaSession::RECLAIM_FAIL; | |
14728 | reclaim_errno = reply->get_result(); | |
14729 | } | |
14730 | ||
14731 | signal_cond_list(waiting_for_reclaim); | |
14732 | } | |
14733 | ||
7c673cae FG |
14734 | /** |
14735 | * This is included in cap release messages, to cause | |
14736 | * the MDS to wait until this OSD map epoch. It is necessary | |
14737 | * in corner cases where we cancel RADOS ops, so that | |
14738 | * nobody else tries to do IO to the same objects in | |
14739 | * the same epoch as the cancelled ops. | |
14740 | */ | |
14741 | void Client::set_cap_epoch_barrier(epoch_t e) | |
14742 | { | |
14743 | ldout(cct, 5) << __func__ << " epoch = " << e << dendl; | |
14744 | cap_epoch_barrier = e; | |
14745 | } | |
14746 | ||
14747 | const char** Client::get_tracked_conf_keys() const | |
14748 | { | |
14749 | static const char* keys[] = { | |
14750 | "client_cache_size", | |
14751 | "client_cache_mid", | |
14752 | "client_acl_type", | |
b32b8144 FG |
14753 | "client_deleg_timeout", |
14754 | "client_deleg_break_on_open", | |
7c673cae FG |
14755 | NULL |
14756 | }; | |
14757 | return keys; | |
14758 | } | |
14759 | ||
11fdf7f2 | 14760 | void Client::handle_conf_change(const ConfigProxy& conf, |
7c673cae FG |
14761 | const std::set <std::string> &changed) |
14762 | { | |
11fdf7f2 | 14763 | std::lock_guard lock(client_lock); |
7c673cae | 14764 | |
181888fb | 14765 | if (changed.count("client_cache_mid")) { |
7c673cae FG |
14766 | lru.lru_set_midpoint(cct->_conf->client_cache_mid); |
14767 | } | |
14768 | if (changed.count("client_acl_type")) { | |
14769 | acl_type = NO_ACL; | |
14770 | if (cct->_conf->client_acl_type == "posix_acl") | |
14771 | acl_type = POSIX_ACL; | |
14772 | } | |
14773 | } | |
14774 | ||
7c673cae FG |
14775 | void intrusive_ptr_add_ref(Inode *in) |
14776 | { | |
14777 | in->get(); | |
14778 | } | |
14779 | ||
14780 | void intrusive_ptr_release(Inode *in) | |
14781 | { | |
14782 | in->client->put_inode(in); | |
14783 | } | |
14784 | ||
14785 | mds_rank_t Client::_get_random_up_mds() const | |
14786 | { | |
9f95a23c | 14787 | ceph_assert(ceph_mutex_is_locked_by_me(client_lock)); |
7c673cae FG |
14788 | |
14789 | std::set<mds_rank_t> up; | |
14790 | mdsmap->get_up_mds_set(up); | |
14791 | ||
14792 | if (up.empty()) | |
14793 | return MDS_RANK_NONE; | |
14794 | std::set<mds_rank_t>::const_iterator p = up.begin(); | |
14795 | for (int n = rand() % up.size(); n; n--) | |
14796 | ++p; | |
14797 | return *p; | |
14798 | } | |
14799 | ||
14800 | ||
14801 | StandaloneClient::StandaloneClient(Messenger *m, MonClient *mc) | |
f91f0fd5 | 14802 | : Client(m, mc, new Objecter(m->cct, m, mc, nullptr)) |
7c673cae FG |
14803 | { |
14804 | monclient->set_messenger(m); | |
14805 | objecter->set_client_incarnation(0); | |
14806 | } | |
14807 | ||
14808 | StandaloneClient::~StandaloneClient() | |
14809 | { | |
14810 | delete objecter; | |
14811 | objecter = nullptr; | |
14812 | } | |
14813 | ||
14814 | int StandaloneClient::init() | |
14815 | { | |
e306af50 | 14816 | _pre_init(); |
7c673cae FG |
14817 | objecter->init(); |
14818 | ||
9f95a23c | 14819 | client_lock.lock(); |
11fdf7f2 | 14820 | ceph_assert(!is_initialized()); |
7c673cae FG |
14821 | |
14822 | messenger->add_dispatcher_tail(objecter); | |
14823 | messenger->add_dispatcher_tail(this); | |
14824 | ||
14825 | monclient->set_want_keys(CEPH_ENTITY_TYPE_MDS | CEPH_ENTITY_TYPE_OSD); | |
14826 | int r = monclient->init(); | |
14827 | if (r < 0) { | |
14828 | // need to do cleanup because we're in an intermediate init state | |
14829 | timer.shutdown(); | |
9f95a23c | 14830 | client_lock.unlock(); |
7c673cae FG |
14831 | objecter->shutdown(); |
14832 | objectcacher->stop(); | |
14833 | monclient->shutdown(); | |
14834 | return r; | |
14835 | } | |
14836 | objecter->start(); | |
14837 | ||
9f95a23c | 14838 | client_lock.unlock(); |
7c673cae FG |
14839 | _finish_init(); |
14840 | ||
14841 | return 0; | |
14842 | } | |
14843 | ||
14844 | void StandaloneClient::shutdown() | |
14845 | { | |
14846 | Client::shutdown(); | |
14847 | objecter->shutdown(); | |
14848 | monclient->shutdown(); | |
14849 | } |