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d7e09d03 PT |
1 | /* |
2 | * GPL HEADER START | |
3 | * | |
4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 only, | |
8 | * as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License version 2 for more details (a copy is included | |
14 | * in the LICENSE file that accompanied this code). | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * version 2 along with this program; If not, see | |
18 | * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf | |
19 | * | |
20 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
21 | * CA 95054 USA or visit www.sun.com if you need additional information or | |
22 | * have any questions. | |
23 | * | |
24 | * GPL HEADER END | |
25 | */ | |
26 | /* | |
27 | * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. | |
28 | * Use is subject to license terms. | |
29 | * | |
30 | * Copyright (c) 2011, 2012, Intel Corporation. | |
31 | */ | |
32 | /* | |
33 | * This file is part of Lustre, http://www.lustre.org/ | |
34 | * Lustre is a trademark of Sun Microsystems, Inc. | |
35 | */ | |
36 | ||
37 | #define DEBUG_SUBSYSTEM S_MDC | |
38 | ||
39 | # include <linux/module.h> | |
40 | # include <linux/pagemap.h> | |
41 | # include <linux/miscdevice.h> | |
42 | # include <linux/init.h> | |
43 | # include <linux/utsname.h> | |
44 | ||
05932307 GKH |
45 | #include "../include/lustre_acl.h" |
46 | #include "../include/obd_class.h" | |
47 | #include "../include/lustre_fid.h" | |
48 | #include "../include/lprocfs_status.h" | |
49 | #include "../include/lustre_param.h" | |
50 | #include "../include/lustre_log.h" | |
d7e09d03 PT |
51 | |
52 | #include "mdc_internal.h" | |
53 | ||
54 | #define REQUEST_MINOR 244 | |
55 | ||
56 | struct mdc_renew_capa_args { | |
57 | struct obd_capa *ra_oc; | |
58 | renew_capa_cb_t ra_cb; | |
59 | }; | |
60 | ||
61 | static int mdc_cleanup(struct obd_device *obd); | |
62 | ||
60ebee3b | 63 | static int mdc_unpack_capa(struct obd_export *exp, struct ptlrpc_request *req, |
d7e09d03 PT |
64 | const struct req_msg_field *field, struct obd_capa **oc) |
65 | { | |
66 | struct lustre_capa *capa; | |
67 | struct obd_capa *c; | |
d7e09d03 PT |
68 | |
69 | /* swabbed already in mdc_enqueue */ | |
70 | capa = req_capsule_server_get(&req->rq_pill, field); | |
71 | if (capa == NULL) | |
0a3bdb00 | 72 | return -EPROTO; |
d7e09d03 PT |
73 | |
74 | c = alloc_capa(CAPA_SITE_CLIENT); | |
75 | if (IS_ERR(c)) { | |
76 | CDEBUG(D_INFO, "alloc capa failed!\n"); | |
0a3bdb00 | 77 | return PTR_ERR(c); |
d7e09d03 | 78 | } |
71e8dd9a AM |
79 | |
80 | c->c_capa = *capa; | |
81 | *oc = c; | |
82 | return 0; | |
d7e09d03 PT |
83 | } |
84 | ||
85 | static inline int mdc_queue_wait(struct ptlrpc_request *req) | |
86 | { | |
87 | struct client_obd *cli = &req->rq_import->imp_obd->u.cli; | |
88 | int rc; | |
89 | ||
90 | /* mdc_enter_request() ensures that this client has no more | |
91 | * than cl_max_rpcs_in_flight RPCs simultaneously inf light | |
92 | * against an MDT. */ | |
93 | rc = mdc_enter_request(cli); | |
94 | if (rc != 0) | |
95 | return rc; | |
96 | ||
97 | rc = ptlrpc_queue_wait(req); | |
98 | mdc_exit_request(cli); | |
99 | ||
100 | return rc; | |
101 | } | |
102 | ||
103 | /* Helper that implements most of mdc_getstatus and signal_completed_replay. */ | |
104 | /* XXX this should become mdc_get_info("key"), sending MDS_GET_INFO RPC */ | |
105 | static int send_getstatus(struct obd_import *imp, struct lu_fid *rootfid, | |
106 | struct obd_capa **pc, int level, int msg_flags) | |
107 | { | |
108 | struct ptlrpc_request *req; | |
109 | struct mdt_body *body; | |
110 | int rc; | |
d7e09d03 PT |
111 | |
112 | req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_GETSTATUS, | |
113 | LUSTRE_MDS_VERSION, MDS_GETSTATUS); | |
114 | if (req == NULL) | |
0a3bdb00 | 115 | return -ENOMEM; |
d7e09d03 PT |
116 | |
117 | mdc_pack_body(req, NULL, NULL, 0, 0, -1, 0); | |
118 | lustre_msg_add_flags(req->rq_reqmsg, msg_flags); | |
119 | req->rq_send_state = level; | |
120 | ||
121 | ptlrpc_request_set_replen(req); | |
122 | ||
123 | rc = ptlrpc_queue_wait(req); | |
124 | if (rc) | |
d5fdc207 | 125 | goto out; |
d7e09d03 PT |
126 | |
127 | body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); | |
d5fdc207 JL |
128 | if (body == NULL) { |
129 | rc = -EPROTO; | |
130 | goto out; | |
131 | } | |
d7e09d03 PT |
132 | |
133 | if (body->valid & OBD_MD_FLMDSCAPA) { | |
134 | rc = mdc_unpack_capa(NULL, req, &RMF_CAPA1, pc); | |
135 | if (rc) | |
d5fdc207 | 136 | goto out; |
d7e09d03 PT |
137 | } |
138 | ||
139 | *rootfid = body->fid1; | |
140 | CDEBUG(D_NET, | |
b0f5aad5 | 141 | "root fid="DFID", last_committed=%llu\n", |
d7e09d03 PT |
142 | PFID(rootfid), |
143 | lustre_msg_get_last_committed(req->rq_repmsg)); | |
d7e09d03 PT |
144 | out: |
145 | ptlrpc_req_finished(req); | |
146 | return rc; | |
147 | } | |
148 | ||
149 | /* This should be mdc_get_info("rootfid") */ | |
60ebee3b | 150 | static int mdc_getstatus(struct obd_export *exp, struct lu_fid *rootfid, |
d7e09d03 PT |
151 | struct obd_capa **pc) |
152 | { | |
153 | return send_getstatus(class_exp2cliimp(exp), rootfid, pc, | |
154 | LUSTRE_IMP_FULL, 0); | |
155 | } | |
156 | ||
157 | /* | |
158 | * This function now is known to always saying that it will receive 4 buffers | |
159 | * from server. Even for cases when acl_size and md_size is zero, RPC header | |
160 | * will contain 4 fields and RPC itself will contain zero size fields. This is | |
161 | * because mdt_getattr*() _always_ returns 4 fields, but if acl is not needed | |
162 | * and thus zero, it shrinks it, making zero size. The same story about | |
163 | * md_size. And this is course of problem when client waits for smaller number | |
164 | * of fields. This issue will be fixed later when client gets aware of RPC | |
165 | * layouts. --umka | |
166 | */ | |
167 | static int mdc_getattr_common(struct obd_export *exp, | |
168 | struct ptlrpc_request *req) | |
169 | { | |
170 | struct req_capsule *pill = &req->rq_pill; | |
171 | struct mdt_body *body; | |
172 | void *eadata; | |
173 | int rc; | |
d7e09d03 PT |
174 | |
175 | /* Request message already built. */ | |
176 | rc = ptlrpc_queue_wait(req); | |
177 | if (rc != 0) | |
0a3bdb00 | 178 | return rc; |
d7e09d03 PT |
179 | |
180 | /* sanity check for the reply */ | |
181 | body = req_capsule_server_get(pill, &RMF_MDT_BODY); | |
182 | if (body == NULL) | |
0a3bdb00 | 183 | return -EPROTO; |
d7e09d03 PT |
184 | |
185 | CDEBUG(D_NET, "mode: %o\n", body->mode); | |
186 | ||
187 | if (body->eadatasize != 0) { | |
188 | mdc_update_max_ea_from_body(exp, body); | |
189 | ||
190 | eadata = req_capsule_server_sized_get(pill, &RMF_MDT_MD, | |
191 | body->eadatasize); | |
192 | if (eadata == NULL) | |
0a3bdb00 | 193 | return -EPROTO; |
d7e09d03 PT |
194 | } |
195 | ||
196 | if (body->valid & OBD_MD_FLRMTPERM) { | |
197 | struct mdt_remote_perm *perm; | |
198 | ||
199 | LASSERT(client_is_remote(exp)); | |
200 | perm = req_capsule_server_swab_get(pill, &RMF_ACL, | |
201 | lustre_swab_mdt_remote_perm); | |
202 | if (perm == NULL) | |
0a3bdb00 | 203 | return -EPROTO; |
d7e09d03 PT |
204 | } |
205 | ||
206 | if (body->valid & OBD_MD_FLMDSCAPA) { | |
207 | struct lustre_capa *capa; | |
7436d070 | 208 | |
d7e09d03 PT |
209 | capa = req_capsule_server_get(pill, &RMF_CAPA1); |
210 | if (capa == NULL) | |
0a3bdb00 | 211 | return -EPROTO; |
d7e09d03 PT |
212 | } |
213 | ||
0a3bdb00 | 214 | return 0; |
d7e09d03 PT |
215 | } |
216 | ||
60ebee3b | 217 | static int mdc_getattr(struct obd_export *exp, struct md_op_data *op_data, |
d7e09d03 PT |
218 | struct ptlrpc_request **request) |
219 | { | |
220 | struct ptlrpc_request *req; | |
221 | int rc; | |
d7e09d03 PT |
222 | |
223 | /* Single MDS without an LMV case */ | |
224 | if (op_data->op_flags & MF_GET_MDT_IDX) { | |
225 | op_data->op_mds = 0; | |
0a3bdb00 | 226 | return 0; |
d7e09d03 PT |
227 | } |
228 | *request = NULL; | |
229 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_GETATTR); | |
230 | if (req == NULL) | |
0a3bdb00 | 231 | return -ENOMEM; |
d7e09d03 PT |
232 | |
233 | mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1); | |
234 | ||
235 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR); | |
236 | if (rc) { | |
237 | ptlrpc_request_free(req); | |
0a3bdb00 | 238 | return rc; |
d7e09d03 PT |
239 | } |
240 | ||
241 | mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1, | |
242 | op_data->op_valid, op_data->op_mode, -1, 0); | |
243 | ||
244 | req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER, | |
245 | op_data->op_mode); | |
246 | if (op_data->op_valid & OBD_MD_FLRMTPERM) { | |
247 | LASSERT(client_is_remote(exp)); | |
248 | req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER, | |
249 | sizeof(struct mdt_remote_perm)); | |
250 | } | |
251 | ptlrpc_request_set_replen(req); | |
252 | ||
253 | rc = mdc_getattr_common(exp, req); | |
254 | if (rc) | |
255 | ptlrpc_req_finished(req); | |
256 | else | |
257 | *request = req; | |
0a3bdb00 | 258 | return rc; |
d7e09d03 PT |
259 | } |
260 | ||
60ebee3b | 261 | static int mdc_getattr_name(struct obd_export *exp, struct md_op_data *op_data, |
d7e09d03 PT |
262 | struct ptlrpc_request **request) |
263 | { | |
264 | struct ptlrpc_request *req; | |
265 | int rc; | |
d7e09d03 PT |
266 | |
267 | *request = NULL; | |
268 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), | |
269 | &RQF_MDS_GETATTR_NAME); | |
270 | if (req == NULL) | |
0a3bdb00 | 271 | return -ENOMEM; |
d7e09d03 PT |
272 | |
273 | mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1); | |
274 | req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT, | |
275 | op_data->op_namelen + 1); | |
276 | ||
277 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR_NAME); | |
278 | if (rc) { | |
279 | ptlrpc_request_free(req); | |
0a3bdb00 | 280 | return rc; |
d7e09d03 PT |
281 | } |
282 | ||
283 | mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1, | |
284 | op_data->op_valid, op_data->op_mode, | |
285 | op_data->op_suppgids[0], 0); | |
286 | ||
287 | if (op_data->op_name) { | |
288 | char *name = req_capsule_client_get(&req->rq_pill, &RMF_NAME); | |
7436d070 | 289 | |
d7e09d03 PT |
290 | LASSERT(strnlen(op_data->op_name, op_data->op_namelen) == |
291 | op_data->op_namelen); | |
292 | memcpy(name, op_data->op_name, op_data->op_namelen); | |
293 | } | |
294 | ||
295 | req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER, | |
296 | op_data->op_mode); | |
297 | ptlrpc_request_set_replen(req); | |
298 | ||
299 | rc = mdc_getattr_common(exp, req); | |
300 | if (rc) | |
301 | ptlrpc_req_finished(req); | |
302 | else | |
303 | *request = req; | |
0a3bdb00 | 304 | return rc; |
d7e09d03 PT |
305 | } |
306 | ||
307 | static int mdc_is_subdir(struct obd_export *exp, | |
308 | const struct lu_fid *pfid, | |
309 | const struct lu_fid *cfid, | |
310 | struct ptlrpc_request **request) | |
311 | { | |
312 | struct ptlrpc_request *req; | |
313 | int rc; | |
314 | ||
d7e09d03 PT |
315 | *request = NULL; |
316 | req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), | |
317 | &RQF_MDS_IS_SUBDIR, LUSTRE_MDS_VERSION, | |
318 | MDS_IS_SUBDIR); | |
319 | if (req == NULL) | |
0a3bdb00 | 320 | return -ENOMEM; |
d7e09d03 PT |
321 | |
322 | mdc_is_subdir_pack(req, pfid, cfid, 0); | |
323 | ptlrpc_request_set_replen(req); | |
324 | ||
325 | rc = ptlrpc_queue_wait(req); | |
326 | if (rc && rc != -EREMOTE) | |
327 | ptlrpc_req_finished(req); | |
328 | else | |
329 | *request = req; | |
0a3bdb00 | 330 | return rc; |
d7e09d03 PT |
331 | } |
332 | ||
301af906 SM |
333 | static int mdc_xattr_common(struct obd_export *exp, |
334 | const struct req_format *fmt, | |
d7e09d03 | 335 | const struct lu_fid *fid, |
21aef7d9 | 336 | struct obd_capa *oc, int opcode, u64 valid, |
d7e09d03 PT |
337 | const char *xattr_name, const char *input, |
338 | int input_size, int output_size, int flags, | |
339 | __u32 suppgid, struct ptlrpc_request **request) | |
340 | { | |
341 | struct ptlrpc_request *req; | |
342 | int xattr_namelen = 0; | |
343 | char *tmp; | |
344 | int rc; | |
d7e09d03 PT |
345 | |
346 | *request = NULL; | |
347 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), fmt); | |
348 | if (req == NULL) | |
0a3bdb00 | 349 | return -ENOMEM; |
d7e09d03 PT |
350 | |
351 | mdc_set_capa_size(req, &RMF_CAPA1, oc); | |
352 | if (xattr_name) { | |
353 | xattr_namelen = strlen(xattr_name) + 1; | |
354 | req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT, | |
355 | xattr_namelen); | |
356 | } | |
357 | if (input_size) { | |
358 | LASSERT(input); | |
359 | req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_CLIENT, | |
360 | input_size); | |
361 | } | |
362 | ||
e93a3082 AP |
363 | /* Flush local XATTR locks to get rid of a possible cancel RPC */ |
364 | if (opcode == MDS_REINT && fid_is_sane(fid) && | |
365 | exp->exp_connect_data.ocd_ibits_known & MDS_INODELOCK_XATTR) { | |
366 | LIST_HEAD(cancels); | |
367 | int count; | |
368 | ||
369 | /* Without that packing would fail */ | |
370 | if (input_size == 0) | |
371 | req_capsule_set_size(&req->rq_pill, &RMF_EADATA, | |
372 | RCL_CLIENT, 0); | |
373 | ||
374 | count = mdc_resource_get_unused(exp, fid, | |
375 | &cancels, LCK_EX, | |
376 | MDS_INODELOCK_XATTR); | |
377 | ||
378 | rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count); | |
379 | if (rc) { | |
380 | ptlrpc_request_free(req); | |
381 | return rc; | |
382 | } | |
383 | } else { | |
384 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, opcode); | |
385 | if (rc) { | |
386 | ptlrpc_request_free(req); | |
387 | return rc; | |
388 | } | |
d7e09d03 PT |
389 | } |
390 | ||
391 | if (opcode == MDS_REINT) { | |
392 | struct mdt_rec_setxattr *rec; | |
393 | ||
394 | CLASSERT(sizeof(struct mdt_rec_setxattr) == | |
395 | sizeof(struct mdt_rec_reint)); | |
396 | rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT); | |
397 | rec->sx_opcode = REINT_SETXATTR; | |
4b1a25f0 PT |
398 | rec->sx_fsuid = from_kuid(&init_user_ns, current_fsuid()); |
399 | rec->sx_fsgid = from_kgid(&init_user_ns, current_fsgid()); | |
d7e09d03 PT |
400 | rec->sx_cap = cfs_curproc_cap_pack(); |
401 | rec->sx_suppgid1 = suppgid; | |
402 | rec->sx_suppgid2 = -1; | |
403 | rec->sx_fid = *fid; | |
404 | rec->sx_valid = valid | OBD_MD_FLCTIME; | |
7264b8a5 | 405 | rec->sx_time = get_seconds(); |
d7e09d03 PT |
406 | rec->sx_size = output_size; |
407 | rec->sx_flags = flags; | |
408 | ||
409 | mdc_pack_capa(req, &RMF_CAPA1, oc); | |
410 | } else { | |
411 | mdc_pack_body(req, fid, oc, valid, output_size, suppgid, flags); | |
412 | } | |
413 | ||
414 | if (xattr_name) { | |
415 | tmp = req_capsule_client_get(&req->rq_pill, &RMF_NAME); | |
416 | memcpy(tmp, xattr_name, xattr_namelen); | |
417 | } | |
418 | if (input_size) { | |
419 | tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA); | |
420 | memcpy(tmp, input, input_size); | |
421 | } | |
422 | ||
423 | if (req_capsule_has_field(&req->rq_pill, &RMF_EADATA, RCL_SERVER)) | |
424 | req_capsule_set_size(&req->rq_pill, &RMF_EADATA, | |
425 | RCL_SERVER, output_size); | |
426 | ptlrpc_request_set_replen(req); | |
427 | ||
428 | /* make rpc */ | |
429 | if (opcode == MDS_REINT) | |
430 | mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL); | |
431 | ||
432 | rc = ptlrpc_queue_wait(req); | |
433 | ||
434 | if (opcode == MDS_REINT) | |
435 | mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL); | |
436 | ||
437 | if (rc) | |
438 | ptlrpc_req_finished(req); | |
439 | else | |
440 | *request = req; | |
0a3bdb00 | 441 | return rc; |
d7e09d03 PT |
442 | } |
443 | ||
60ebee3b | 444 | static int mdc_setxattr(struct obd_export *exp, const struct lu_fid *fid, |
21aef7d9 | 445 | struct obd_capa *oc, u64 valid, const char *xattr_name, |
d7e09d03 PT |
446 | const char *input, int input_size, int output_size, |
447 | int flags, __u32 suppgid, struct ptlrpc_request **request) | |
448 | { | |
449 | return mdc_xattr_common(exp, &RQF_MDS_REINT_SETXATTR, | |
450 | fid, oc, MDS_REINT, valid, xattr_name, | |
451 | input, input_size, output_size, flags, | |
452 | suppgid, request); | |
453 | } | |
454 | ||
60ebee3b | 455 | static int mdc_getxattr(struct obd_export *exp, const struct lu_fid *fid, |
21aef7d9 | 456 | struct obd_capa *oc, u64 valid, const char *xattr_name, |
d7e09d03 PT |
457 | const char *input, int input_size, int output_size, |
458 | int flags, struct ptlrpc_request **request) | |
459 | { | |
460 | return mdc_xattr_common(exp, &RQF_MDS_GETXATTR, | |
461 | fid, oc, MDS_GETXATTR, valid, xattr_name, | |
462 | input, input_size, output_size, flags, | |
463 | -1, request); | |
464 | } | |
465 | ||
466 | #ifdef CONFIG_FS_POSIX_ACL | |
467 | static int mdc_unpack_acl(struct ptlrpc_request *req, struct lustre_md *md) | |
468 | { | |
469 | struct req_capsule *pill = &req->rq_pill; | |
470 | struct mdt_body *body = md->body; | |
471 | struct posix_acl *acl; | |
472 | void *buf; | |
473 | int rc; | |
d7e09d03 PT |
474 | |
475 | if (!body->aclsize) | |
0a3bdb00 | 476 | return 0; |
d7e09d03 PT |
477 | |
478 | buf = req_capsule_server_sized_get(pill, &RMF_ACL, body->aclsize); | |
479 | ||
480 | if (!buf) | |
0a3bdb00 | 481 | return -EPROTO; |
d7e09d03 PT |
482 | |
483 | acl = posix_acl_from_xattr(&init_user_ns, buf, body->aclsize); | |
f4289400 CM |
484 | if (acl == NULL) |
485 | return 0; | |
486 | ||
d7e09d03 PT |
487 | if (IS_ERR(acl)) { |
488 | rc = PTR_ERR(acl); | |
489 | CERROR("convert xattr to acl: %d\n", rc); | |
0a3bdb00 | 490 | return rc; |
d7e09d03 PT |
491 | } |
492 | ||
493 | rc = posix_acl_valid(acl); | |
494 | if (rc) { | |
495 | CERROR("validate acl: %d\n", rc); | |
496 | posix_acl_release(acl); | |
0a3bdb00 | 497 | return rc; |
d7e09d03 PT |
498 | } |
499 | ||
500 | md->posix_acl = acl; | |
0a3bdb00 | 501 | return 0; |
d7e09d03 PT |
502 | } |
503 | #else | |
504 | #define mdc_unpack_acl(req, md) 0 | |
505 | #endif | |
506 | ||
507 | int mdc_get_lustre_md(struct obd_export *exp, struct ptlrpc_request *req, | |
508 | struct obd_export *dt_exp, struct obd_export *md_exp, | |
509 | struct lustre_md *md) | |
510 | { | |
511 | struct req_capsule *pill = &req->rq_pill; | |
512 | int rc; | |
d7e09d03 PT |
513 | |
514 | LASSERT(md); | |
515 | memset(md, 0, sizeof(*md)); | |
516 | ||
517 | md->body = req_capsule_server_get(pill, &RMF_MDT_BODY); | |
518 | LASSERT(md->body != NULL); | |
519 | ||
520 | if (md->body->valid & OBD_MD_FLEASIZE) { | |
521 | int lmmsize; | |
522 | struct lov_mds_md *lmm; | |
523 | ||
524 | if (!S_ISREG(md->body->mode)) { | |
ee990b33 SM |
525 | CDEBUG(D_INFO, |
526 | "OBD_MD_FLEASIZE set, should be a regular file, but is not\n"); | |
d5fdc207 JL |
527 | rc = -EPROTO; |
528 | goto out; | |
d7e09d03 PT |
529 | } |
530 | ||
531 | if (md->body->eadatasize == 0) { | |
ee990b33 SM |
532 | CDEBUG(D_INFO, |
533 | "OBD_MD_FLEASIZE set, but eadatasize 0\n"); | |
d5fdc207 JL |
534 | rc = -EPROTO; |
535 | goto out; | |
d7e09d03 PT |
536 | } |
537 | lmmsize = md->body->eadatasize; | |
538 | lmm = req_capsule_server_sized_get(pill, &RMF_MDT_MD, lmmsize); | |
d5fdc207 JL |
539 | if (!lmm) { |
540 | rc = -EPROTO; | |
541 | goto out; | |
542 | } | |
d7e09d03 PT |
543 | |
544 | rc = obd_unpackmd(dt_exp, &md->lsm, lmm, lmmsize); | |
545 | if (rc < 0) | |
d5fdc207 | 546 | goto out; |
d7e09d03 PT |
547 | |
548 | if (rc < sizeof(*md->lsm)) { | |
ee990b33 SM |
549 | CDEBUG(D_INFO, |
550 | "lsm size too small: rc < sizeof (*md->lsm) (%d < %d)\n", | |
d7e09d03 | 551 | rc, (int)sizeof(*md->lsm)); |
d5fdc207 JL |
552 | rc = -EPROTO; |
553 | goto out; | |
d7e09d03 PT |
554 | } |
555 | ||
556 | } else if (md->body->valid & OBD_MD_FLDIREA) { | |
557 | int lmvsize; | |
558 | struct lov_mds_md *lmv; | |
559 | ||
301af906 | 560 | if (!S_ISDIR(md->body->mode)) { |
ee990b33 SM |
561 | CDEBUG(D_INFO, |
562 | "OBD_MD_FLDIREA set, should be a directory, but is not\n"); | |
d5fdc207 JL |
563 | rc = -EPROTO; |
564 | goto out; | |
d7e09d03 PT |
565 | } |
566 | ||
567 | if (md->body->eadatasize == 0) { | |
ee990b33 SM |
568 | CDEBUG(D_INFO, |
569 | "OBD_MD_FLDIREA is set, but eadatasize 0\n"); | |
0a3bdb00 | 570 | return -EPROTO; |
d7e09d03 PT |
571 | } |
572 | if (md->body->valid & OBD_MD_MEA) { | |
573 | lmvsize = md->body->eadatasize; | |
574 | lmv = req_capsule_server_sized_get(pill, &RMF_MDT_MD, | |
575 | lmvsize); | |
d5fdc207 JL |
576 | if (!lmv) { |
577 | rc = -EPROTO; | |
578 | goto out; | |
579 | } | |
d7e09d03 PT |
580 | |
581 | rc = obd_unpackmd(md_exp, (void *)&md->mea, lmv, | |
582 | lmvsize); | |
583 | if (rc < 0) | |
d5fdc207 | 584 | goto out; |
d7e09d03 PT |
585 | |
586 | if (rc < sizeof(*md->mea)) { | |
ee990b33 SM |
587 | CDEBUG(D_INFO, |
588 | "size too small: rc < sizeof(*md->mea) (%d < %d)\n", | |
d7e09d03 | 589 | rc, (int)sizeof(*md->mea)); |
d5fdc207 JL |
590 | rc = -EPROTO; |
591 | goto out; | |
d7e09d03 PT |
592 | } |
593 | } | |
594 | } | |
595 | rc = 0; | |
596 | ||
597 | if (md->body->valid & OBD_MD_FLRMTPERM) { | |
598 | /* remote permission */ | |
599 | LASSERT(client_is_remote(exp)); | |
600 | md->remote_perm = req_capsule_server_swab_get(pill, &RMF_ACL, | |
601 | lustre_swab_mdt_remote_perm); | |
d5fdc207 JL |
602 | if (!md->remote_perm) { |
603 | rc = -EPROTO; | |
604 | goto out; | |
605 | } | |
78dd0798 | 606 | } else if (md->body->valid & OBD_MD_FLACL) { |
d7e09d03 PT |
607 | /* for ACL, it's possible that FLACL is set but aclsize is zero. |
608 | * only when aclsize != 0 there's an actual segment for ACL | |
609 | * in reply buffer. | |
610 | */ | |
611 | if (md->body->aclsize) { | |
612 | rc = mdc_unpack_acl(req, md); | |
613 | if (rc) | |
d5fdc207 | 614 | goto out; |
d7e09d03 PT |
615 | #ifdef CONFIG_FS_POSIX_ACL |
616 | } else { | |
617 | md->posix_acl = NULL; | |
618 | #endif | |
619 | } | |
620 | } | |
621 | if (md->body->valid & OBD_MD_FLMDSCAPA) { | |
622 | struct obd_capa *oc = NULL; | |
623 | ||
624 | rc = mdc_unpack_capa(NULL, req, &RMF_CAPA1, &oc); | |
625 | if (rc) | |
d5fdc207 | 626 | goto out; |
d7e09d03 PT |
627 | md->mds_capa = oc; |
628 | } | |
629 | ||
630 | if (md->body->valid & OBD_MD_FLOSSCAPA) { | |
631 | struct obd_capa *oc = NULL; | |
632 | ||
633 | rc = mdc_unpack_capa(NULL, req, &RMF_CAPA2, &oc); | |
634 | if (rc) | |
d5fdc207 | 635 | goto out; |
d7e09d03 PT |
636 | md->oss_capa = oc; |
637 | } | |
638 | ||
d7e09d03 PT |
639 | out: |
640 | if (rc) { | |
641 | if (md->oss_capa) { | |
642 | capa_put(md->oss_capa); | |
643 | md->oss_capa = NULL; | |
644 | } | |
645 | if (md->mds_capa) { | |
646 | capa_put(md->mds_capa); | |
647 | md->mds_capa = NULL; | |
648 | } | |
649 | #ifdef CONFIG_FS_POSIX_ACL | |
650 | posix_acl_release(md->posix_acl); | |
651 | #endif | |
652 | if (md->lsm) | |
653 | obd_free_memmd(dt_exp, &md->lsm); | |
654 | } | |
655 | return rc; | |
656 | } | |
657 | ||
658 | int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md) | |
659 | { | |
0a3bdb00 | 660 | return 0; |
d7e09d03 PT |
661 | } |
662 | ||
663 | /** | |
664 | * Handles both OPEN and SETATTR RPCs for OPEN-CLOSE and SETATTR-DONE_WRITING | |
665 | * RPC chains. | |
666 | */ | |
667 | void mdc_replay_open(struct ptlrpc_request *req) | |
668 | { | |
669 | struct md_open_data *mod = req->rq_cb_data; | |
670 | struct ptlrpc_request *close_req; | |
671 | struct obd_client_handle *och; | |
672 | struct lustre_handle old; | |
673 | struct mdt_body *body; | |
d7e09d03 PT |
674 | |
675 | if (mod == NULL) { | |
676 | DEBUG_REQ(D_ERROR, req, | |
677 | "Can't properly replay without open data."); | |
d7e09d03 PT |
678 | return; |
679 | } | |
680 | ||
681 | body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); | |
682 | LASSERT(body != NULL); | |
683 | ||
684 | och = mod->mod_och; | |
685 | if (och != NULL) { | |
686 | struct lustre_handle *file_fh; | |
687 | ||
688 | LASSERT(och->och_magic == OBD_CLIENT_HANDLE_MAGIC); | |
689 | ||
690 | file_fh = &och->och_fh; | |
55f5a824 | 691 | CDEBUG(D_HA, "updating handle from %#llx to %#llx\n", |
d7e09d03 PT |
692 | file_fh->cookie, body->handle.cookie); |
693 | old = *file_fh; | |
694 | *file_fh = body->handle; | |
695 | } | |
696 | close_req = mod->mod_close_req; | |
697 | if (close_req != NULL) { | |
698 | __u32 opc = lustre_msg_get_opc(close_req->rq_reqmsg); | |
699 | struct mdt_ioepoch *epoch; | |
700 | ||
701 | LASSERT(opc == MDS_CLOSE || opc == MDS_DONE_WRITING); | |
702 | epoch = req_capsule_client_get(&close_req->rq_pill, | |
703 | &RMF_MDT_EPOCH); | |
704 | LASSERT(epoch); | |
705 | ||
706 | if (och != NULL) | |
707 | LASSERT(!memcmp(&old, &epoch->handle, sizeof(old))); | |
708 | DEBUG_REQ(D_HA, close_req, "updating close body with new fh"); | |
709 | epoch->handle = body->handle; | |
710 | } | |
d7e09d03 PT |
711 | } |
712 | ||
713 | void mdc_commit_open(struct ptlrpc_request *req) | |
714 | { | |
715 | struct md_open_data *mod = req->rq_cb_data; | |
7436d070 | 716 | |
d7e09d03 PT |
717 | if (mod == NULL) |
718 | return; | |
719 | ||
720 | /** | |
721 | * No need to touch md_open_data::mod_och, it holds a reference on | |
722 | * \var mod and will zero references to each other, \var mod will be | |
723 | * freed after that when md_open_data::mod_och will put the reference. | |
724 | */ | |
725 | ||
726 | /** | |
727 | * Do not let open request to disappear as it still may be needed | |
728 | * for close rpc to happen (it may happen on evict only, otherwise | |
729 | * ptlrpc_request::rq_replay does not let mdc_commit_open() to be | |
730 | * called), just mark this rpc as committed to distinguish these 2 | |
731 | * cases, see mdc_close() for details. The open request reference will | |
732 | * be put along with freeing \var mod. | |
733 | */ | |
734 | ptlrpc_request_addref(req); | |
735 | spin_lock(&req->rq_lock); | |
736 | req->rq_committed = 1; | |
737 | spin_unlock(&req->rq_lock); | |
738 | req->rq_cb_data = NULL; | |
739 | obd_mod_put(mod); | |
740 | } | |
741 | ||
742 | int mdc_set_open_replay_data(struct obd_export *exp, | |
743 | struct obd_client_handle *och, | |
63d42578 | 744 | struct lookup_intent *it) |
d7e09d03 PT |
745 | { |
746 | struct md_open_data *mod; | |
747 | struct mdt_rec_create *rec; | |
748 | struct mdt_body *body; | |
63d42578 | 749 | struct ptlrpc_request *open_req = it->d.lustre.it_data; |
d7e09d03 | 750 | struct obd_import *imp = open_req->rq_import; |
d7e09d03 PT |
751 | |
752 | if (!open_req->rq_replay) | |
0a3bdb00 | 753 | return 0; |
d7e09d03 PT |
754 | |
755 | rec = req_capsule_client_get(&open_req->rq_pill, &RMF_REC_REINT); | |
756 | body = req_capsule_server_get(&open_req->rq_pill, &RMF_MDT_BODY); | |
757 | LASSERT(rec != NULL); | |
758 | /* Incoming message in my byte order (it's been swabbed). */ | |
759 | /* Outgoing messages always in my byte order. */ | |
760 | LASSERT(body != NULL); | |
761 | ||
762 | /* Only if the import is replayable, we set replay_open data */ | |
763 | if (och && imp->imp_replayable) { | |
764 | mod = obd_mod_alloc(); | |
765 | if (mod == NULL) { | |
766 | DEBUG_REQ(D_ERROR, open_req, | |
767 | "Can't allocate md_open_data"); | |
0a3bdb00 | 768 | return 0; |
d7e09d03 PT |
769 | } |
770 | ||
771 | /** | |
772 | * Take a reference on \var mod, to be freed on mdc_close(). | |
773 | * It protects \var mod from being freed on eviction (commit | |
774 | * callback is called despite rq_replay flag). | |
775 | * Another reference for \var och. | |
776 | */ | |
777 | obd_mod_get(mod); | |
778 | obd_mod_get(mod); | |
779 | ||
780 | spin_lock(&open_req->rq_lock); | |
781 | och->och_mod = mod; | |
782 | mod->mod_och = och; | |
63d42578 HZ |
783 | mod->mod_is_create = it_disposition(it, DISP_OPEN_CREATE) || |
784 | it_disposition(it, DISP_OPEN_STRIPE); | |
d7e09d03 PT |
785 | mod->mod_open_req = open_req; |
786 | open_req->rq_cb_data = mod; | |
787 | open_req->rq_commit_cb = mdc_commit_open; | |
788 | spin_unlock(&open_req->rq_lock); | |
789 | } | |
790 | ||
791 | rec->cr_fid2 = body->fid1; | |
792 | rec->cr_ioepoch = body->ioepoch; | |
793 | rec->cr_old_handle.cookie = body->handle.cookie; | |
794 | open_req->rq_replay_cb = mdc_replay_open; | |
795 | if (!fid_is_sane(&body->fid1)) { | |
ee990b33 SM |
796 | DEBUG_REQ(D_ERROR, open_req, |
797 | "Saving replay request with insane fid"); | |
d7e09d03 PT |
798 | LBUG(); |
799 | } | |
800 | ||
801 | DEBUG_REQ(D_RPCTRACE, open_req, "Set up open replay data"); | |
0a3bdb00 | 802 | return 0; |
d7e09d03 PT |
803 | } |
804 | ||
63d42578 HZ |
805 | static void mdc_free_open(struct md_open_data *mod) |
806 | { | |
807 | int committed = 0; | |
808 | ||
809 | if (mod->mod_is_create == 0 && | |
810 | imp_connect_disp_stripe(mod->mod_open_req->rq_import)) | |
811 | committed = 1; | |
812 | ||
813 | LASSERT(mod->mod_open_req->rq_replay == 0); | |
814 | ||
815 | DEBUG_REQ(D_RPCTRACE, mod->mod_open_req, "free open request\n"); | |
816 | ||
817 | ptlrpc_request_committed(mod->mod_open_req, committed); | |
818 | if (mod->mod_close_req) | |
819 | ptlrpc_request_committed(mod->mod_close_req, committed); | |
820 | } | |
821 | ||
d7e09d03 PT |
822 | int mdc_clear_open_replay_data(struct obd_export *exp, |
823 | struct obd_client_handle *och) | |
824 | { | |
825 | struct md_open_data *mod = och->och_mod; | |
d7e09d03 PT |
826 | |
827 | /** | |
828 | * It is possible to not have \var mod in a case of eviction between | |
829 | * lookup and ll_file_open(). | |
830 | **/ | |
831 | if (mod == NULL) | |
0a3bdb00 | 832 | return 0; |
d7e09d03 PT |
833 | |
834 | LASSERT(mod != LP_POISON); | |
63d42578 HZ |
835 | LASSERT(mod->mod_open_req != NULL); |
836 | mdc_free_open(mod); | |
d7e09d03 PT |
837 | |
838 | mod->mod_och = NULL; | |
839 | och->och_mod = NULL; | |
840 | obd_mod_put(mod); | |
841 | ||
0a3bdb00 | 842 | return 0; |
d7e09d03 PT |
843 | } |
844 | ||
845 | /* Prepares the request for the replay by the given reply */ | |
846 | static void mdc_close_handle_reply(struct ptlrpc_request *req, | |
847 | struct md_op_data *op_data, int rc) { | |
848 | struct mdt_body *repbody; | |
849 | struct mdt_ioepoch *epoch; | |
850 | ||
851 | if (req && rc == -EAGAIN) { | |
852 | repbody = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); | |
853 | epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH); | |
854 | ||
855 | epoch->flags |= MF_SOM_AU; | |
856 | if (repbody->valid & OBD_MD_FLGETATTRLOCK) | |
857 | op_data->op_flags |= MF_GETATTR_LOCK; | |
858 | } | |
859 | } | |
860 | ||
f6219c16 LC |
861 | static int mdc_close(struct obd_export *exp, struct md_op_data *op_data, |
862 | struct md_open_data *mod, struct ptlrpc_request **request) | |
d7e09d03 PT |
863 | { |
864 | struct obd_device *obd = class_exp2obd(exp); | |
865 | struct ptlrpc_request *req; | |
48d23e61 JX |
866 | struct req_format *req_fmt; |
867 | int rc; | |
868 | int saved_rc = 0; | |
869 | ||
870 | ||
871 | req_fmt = &RQF_MDS_CLOSE; | |
872 | if (op_data->op_bias & MDS_HSM_RELEASE) { | |
873 | req_fmt = &RQF_MDS_RELEASE_CLOSE; | |
874 | ||
875 | /* allocate a FID for volatile file */ | |
876 | rc = mdc_fid_alloc(exp, &op_data->op_fid2, op_data); | |
877 | if (rc < 0) { | |
878 | CERROR("%s: "DFID" failed to allocate FID: %d\n", | |
879 | obd->obd_name, PFID(&op_data->op_fid1), rc); | |
880 | /* save the errcode and proceed to close */ | |
881 | saved_rc = rc; | |
882 | } | |
883 | } | |
d7e09d03 PT |
884 | |
885 | *request = NULL; | |
48d23e61 | 886 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), req_fmt); |
d7e09d03 | 887 | if (req == NULL) |
0a3bdb00 | 888 | return -ENOMEM; |
d7e09d03 PT |
889 | |
890 | mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1); | |
891 | ||
892 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_CLOSE); | |
893 | if (rc) { | |
894 | ptlrpc_request_free(req); | |
0a3bdb00 | 895 | return rc; |
d7e09d03 PT |
896 | } |
897 | ||
898 | /* To avoid a livelock (bug 7034), we need to send CLOSE RPCs to a | |
899 | * portal whose threads are not taking any DLM locks and are therefore | |
900 | * always progressing */ | |
901 | req->rq_request_portal = MDS_READPAGE_PORTAL; | |
902 | ptlrpc_at_set_req_timeout(req); | |
903 | ||
904 | /* Ensure that this close's handle is fixed up during replay. */ | |
905 | if (likely(mod != NULL)) { | |
906 | LASSERTF(mod->mod_open_req != NULL && | |
907 | mod->mod_open_req->rq_type != LI_POISON, | |
908 | "POISONED open %p!\n", mod->mod_open_req); | |
909 | ||
910 | mod->mod_close_req = req; | |
911 | ||
912 | DEBUG_REQ(D_HA, mod->mod_open_req, "matched open"); | |
913 | /* We no longer want to preserve this open for replay even | |
914 | * though the open was committed. b=3632, b=3633 */ | |
915 | spin_lock(&mod->mod_open_req->rq_lock); | |
916 | mod->mod_open_req->rq_replay = 0; | |
917 | spin_unlock(&mod->mod_open_req->rq_lock); | |
918 | } else { | |
e5e663ae SM |
919 | CDEBUG(D_HA, |
920 | "couldn't find open req; expecting close error\n"); | |
d7e09d03 PT |
921 | } |
922 | ||
923 | mdc_close_pack(req, op_data); | |
924 | ||
925 | req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER, | |
44779340 | 926 | obd->u.cli.cl_default_mds_easize); |
d7e09d03 | 927 | req_capsule_set_size(&req->rq_pill, &RMF_LOGCOOKIES, RCL_SERVER, |
44779340 | 928 | obd->u.cli.cl_default_mds_cookiesize); |
d7e09d03 PT |
929 | |
930 | ptlrpc_request_set_replen(req); | |
931 | ||
932 | mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL); | |
933 | rc = ptlrpc_queue_wait(req); | |
934 | mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL); | |
935 | ||
936 | if (req->rq_repmsg == NULL) { | |
937 | CDEBUG(D_RPCTRACE, "request failed to send: %p, %d\n", req, | |
938 | req->rq_status); | |
939 | if (rc == 0) | |
940 | rc = req->rq_status ?: -EIO; | |
941 | } else if (rc == 0 || rc == -EAGAIN) { | |
942 | struct mdt_body *body; | |
943 | ||
944 | rc = lustre_msg_get_status(req->rq_repmsg); | |
945 | if (lustre_msg_get_type(req->rq_repmsg) == PTL_RPC_MSG_ERR) { | |
ee990b33 SM |
946 | DEBUG_REQ(D_ERROR, req, |
947 | "type == PTL_RPC_MSG_ERR, err = %d", rc); | |
d7e09d03 PT |
948 | if (rc > 0) |
949 | rc = -rc; | |
950 | } | |
951 | body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); | |
952 | if (body == NULL) | |
953 | rc = -EPROTO; | |
954 | } else if (rc == -ESTALE) { | |
955 | /** | |
956 | * it can be allowed error after 3633 if open was committed and | |
957 | * server failed before close was sent. Let's check if mod | |
958 | * exists and return no error in that case | |
959 | */ | |
960 | if (mod) { | |
961 | DEBUG_REQ(D_HA, req, "Reset ESTALE = %d", rc); | |
962 | LASSERT(mod->mod_open_req != NULL); | |
963 | if (mod->mod_open_req->rq_committed) | |
964 | rc = 0; | |
965 | } | |
966 | } | |
967 | ||
968 | if (mod) { | |
969 | if (rc != 0) | |
970 | mod->mod_close_req = NULL; | |
971 | /* Since now, mod is accessed through open_req only, | |
972 | * thus close req does not keep a reference on mod anymore. */ | |
973 | obd_mod_put(mod); | |
974 | } | |
975 | *request = req; | |
976 | mdc_close_handle_reply(req, op_data, rc); | |
48d23e61 | 977 | return rc < 0 ? rc : saved_rc; |
d7e09d03 PT |
978 | } |
979 | ||
f6219c16 LC |
980 | static int mdc_done_writing(struct obd_export *exp, struct md_op_data *op_data, |
981 | struct md_open_data *mod) | |
d7e09d03 PT |
982 | { |
983 | struct obd_device *obd = class_exp2obd(exp); | |
984 | struct ptlrpc_request *req; | |
985 | int rc; | |
d7e09d03 PT |
986 | |
987 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), | |
988 | &RQF_MDS_DONE_WRITING); | |
989 | if (req == NULL) | |
0a3bdb00 | 990 | return -ENOMEM; |
d7e09d03 PT |
991 | |
992 | mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1); | |
993 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_DONE_WRITING); | |
994 | if (rc) { | |
995 | ptlrpc_request_free(req); | |
0a3bdb00 | 996 | return rc; |
d7e09d03 PT |
997 | } |
998 | ||
999 | if (mod != NULL) { | |
1000 | LASSERTF(mod->mod_open_req != NULL && | |
1001 | mod->mod_open_req->rq_type != LI_POISON, | |
1002 | "POISONED setattr %p!\n", mod->mod_open_req); | |
1003 | ||
1004 | mod->mod_close_req = req; | |
1005 | DEBUG_REQ(D_HA, mod->mod_open_req, "matched setattr"); | |
1006 | /* We no longer want to preserve this setattr for replay even | |
1007 | * though the open was committed. b=3632, b=3633 */ | |
1008 | spin_lock(&mod->mod_open_req->rq_lock); | |
1009 | mod->mod_open_req->rq_replay = 0; | |
1010 | spin_unlock(&mod->mod_open_req->rq_lock); | |
1011 | } | |
1012 | ||
1013 | mdc_close_pack(req, op_data); | |
1014 | ptlrpc_request_set_replen(req); | |
1015 | ||
1016 | mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL); | |
1017 | rc = ptlrpc_queue_wait(req); | |
1018 | mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL); | |
1019 | ||
1020 | if (rc == -ESTALE) { | |
1021 | /** | |
1022 | * it can be allowed error after 3633 if open or setattr were | |
1023 | * committed and server failed before close was sent. | |
1024 | * Let's check if mod exists and return no error in that case | |
1025 | */ | |
1026 | if (mod) { | |
1027 | LASSERT(mod->mod_open_req != NULL); | |
1028 | if (mod->mod_open_req->rq_committed) | |
1029 | rc = 0; | |
1030 | } | |
1031 | } | |
1032 | ||
1033 | if (mod) { | |
1034 | if (rc != 0) | |
1035 | mod->mod_close_req = NULL; | |
63d42578 HZ |
1036 | LASSERT(mod->mod_open_req != NULL); |
1037 | mdc_free_open(mod); | |
1038 | ||
d7e09d03 PT |
1039 | /* Since now, mod is accessed through setattr req only, |
1040 | * thus DW req does not keep a reference on mod anymore. */ | |
1041 | obd_mod_put(mod); | |
1042 | } | |
1043 | ||
1044 | mdc_close_handle_reply(req, op_data, rc); | |
1045 | ptlrpc_req_finished(req); | |
0a3bdb00 | 1046 | return rc; |
d7e09d03 PT |
1047 | } |
1048 | ||
1049 | ||
f6219c16 LC |
1050 | static int mdc_readpage(struct obd_export *exp, struct md_op_data *op_data, |
1051 | struct page **pages, struct ptlrpc_request **request) | |
d7e09d03 PT |
1052 | { |
1053 | struct ptlrpc_request *req; | |
1054 | struct ptlrpc_bulk_desc *desc; | |
1055 | int i; | |
1056 | wait_queue_head_t waitq; | |
1057 | int resends = 0; | |
1058 | struct l_wait_info lwi; | |
1059 | int rc; | |
d7e09d03 PT |
1060 | |
1061 | *request = NULL; | |
1062 | init_waitqueue_head(&waitq); | |
1063 | ||
1064 | restart_bulk: | |
1065 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_READPAGE); | |
1066 | if (req == NULL) | |
0a3bdb00 | 1067 | return -ENOMEM; |
d7e09d03 PT |
1068 | |
1069 | mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1); | |
1070 | ||
1071 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_READPAGE); | |
1072 | if (rc) { | |
1073 | ptlrpc_request_free(req); | |
0a3bdb00 | 1074 | return rc; |
d7e09d03 PT |
1075 | } |
1076 | ||
1077 | req->rq_request_portal = MDS_READPAGE_PORTAL; | |
1078 | ptlrpc_at_set_req_timeout(req); | |
1079 | ||
1080 | desc = ptlrpc_prep_bulk_imp(req, op_data->op_npages, 1, BULK_PUT_SINK, | |
1081 | MDS_BULK_PORTAL); | |
1082 | if (desc == NULL) { | |
1083 | ptlrpc_request_free(req); | |
0a3bdb00 | 1084 | return -ENOMEM; |
d7e09d03 PT |
1085 | } |
1086 | ||
1087 | /* NB req now owns desc and will free it when it gets freed */ | |
1088 | for (i = 0; i < op_data->op_npages; i++) | |
1089 | ptlrpc_prep_bulk_page_pin(desc, pages[i], 0, PAGE_CACHE_SIZE); | |
1090 | ||
1091 | mdc_readdir_pack(req, op_data->op_offset, | |
1092 | PAGE_CACHE_SIZE * op_data->op_npages, | |
1093 | &op_data->op_fid1, op_data->op_capa1); | |
1094 | ||
1095 | ptlrpc_request_set_replen(req); | |
1096 | rc = ptlrpc_queue_wait(req); | |
1097 | if (rc) { | |
1098 | ptlrpc_req_finished(req); | |
1099 | if (rc != -ETIMEDOUT) | |
0a3bdb00 | 1100 | return rc; |
d7e09d03 PT |
1101 | |
1102 | resends++; | |
1103 | if (!client_should_resend(resends, &exp->exp_obd->u.cli)) { | |
1104 | CERROR("too many resend retries, returning error\n"); | |
0a3bdb00 | 1105 | return -EIO; |
d7e09d03 | 1106 | } |
e5e663ae SM |
1107 | lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(resends), |
1108 | NULL, NULL, NULL); | |
d7e09d03 PT |
1109 | l_wait_event(waitq, 0, &lwi); |
1110 | ||
1111 | goto restart_bulk; | |
1112 | } | |
1113 | ||
1114 | rc = sptlrpc_cli_unwrap_bulk_read(req, req->rq_bulk, | |
1115 | req->rq_bulk->bd_nob_transferred); | |
1116 | if (rc < 0) { | |
1117 | ptlrpc_req_finished(req); | |
0a3bdb00 | 1118 | return rc; |
d7e09d03 PT |
1119 | } |
1120 | ||
1121 | if (req->rq_bulk->bd_nob_transferred & ~LU_PAGE_MASK) { | |
1122 | CERROR("Unexpected # bytes transferred: %d (%ld expected)\n", | |
1123 | req->rq_bulk->bd_nob_transferred, | |
1124 | PAGE_CACHE_SIZE * op_data->op_npages); | |
1125 | ptlrpc_req_finished(req); | |
0a3bdb00 | 1126 | return -EPROTO; |
d7e09d03 PT |
1127 | } |
1128 | ||
1129 | *request = req; | |
0a3bdb00 | 1130 | return 0; |
d7e09d03 PT |
1131 | } |
1132 | ||
1133 | static int mdc_statfs(const struct lu_env *env, | |
1134 | struct obd_export *exp, struct obd_statfs *osfs, | |
1135 | __u64 max_age, __u32 flags) | |
1136 | { | |
1137 | struct obd_device *obd = class_exp2obd(exp); | |
1138 | struct ptlrpc_request *req; | |
1139 | struct obd_statfs *msfs; | |
1140 | struct obd_import *imp = NULL; | |
1141 | int rc; | |
d7e09d03 PT |
1142 | |
1143 | /* | |
1144 | * Since the request might also come from lprocfs, so we need | |
1145 | * sync this with client_disconnect_export Bug15684 | |
1146 | */ | |
1147 | down_read(&obd->u.cli.cl_sem); | |
1148 | if (obd->u.cli.cl_import) | |
1149 | imp = class_import_get(obd->u.cli.cl_import); | |
1150 | up_read(&obd->u.cli.cl_sem); | |
1151 | if (!imp) | |
0a3bdb00 | 1152 | return -ENODEV; |
d7e09d03 PT |
1153 | |
1154 | req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_STATFS, | |
1155 | LUSTRE_MDS_VERSION, MDS_STATFS); | |
d5fdc207 JL |
1156 | if (req == NULL) { |
1157 | rc = -ENOMEM; | |
1158 | goto output; | |
1159 | } | |
d7e09d03 PT |
1160 | |
1161 | ptlrpc_request_set_replen(req); | |
1162 | ||
1163 | if (flags & OBD_STATFS_NODELAY) { | |
1164 | /* procfs requests not want stay in wait for avoid deadlock */ | |
1165 | req->rq_no_resend = 1; | |
1166 | req->rq_no_delay = 1; | |
1167 | } | |
1168 | ||
1169 | rc = ptlrpc_queue_wait(req); | |
1170 | if (rc) { | |
1171 | /* check connection error first */ | |
1172 | if (imp->imp_connect_error) | |
1173 | rc = imp->imp_connect_error; | |
d5fdc207 | 1174 | goto out; |
d7e09d03 PT |
1175 | } |
1176 | ||
1177 | msfs = req_capsule_server_get(&req->rq_pill, &RMF_OBD_STATFS); | |
d5fdc207 JL |
1178 | if (msfs == NULL) { |
1179 | rc = -EPROTO; | |
1180 | goto out; | |
1181 | } | |
d7e09d03 PT |
1182 | |
1183 | *osfs = *msfs; | |
d7e09d03 PT |
1184 | out: |
1185 | ptlrpc_req_finished(req); | |
1186 | output: | |
1187 | class_import_put(imp); | |
1188 | return rc; | |
1189 | } | |
1190 | ||
1191 | static int mdc_ioc_fid2path(struct obd_export *exp, struct getinfo_fid2path *gf) | |
1192 | { | |
1193 | __u32 keylen, vallen; | |
1194 | void *key; | |
1195 | int rc; | |
1196 | ||
1197 | if (gf->gf_pathlen > PATH_MAX) | |
0a3bdb00 | 1198 | return -ENAMETOOLONG; |
d7e09d03 | 1199 | if (gf->gf_pathlen < 2) |
0a3bdb00 | 1200 | return -EOVERFLOW; |
d7e09d03 PT |
1201 | |
1202 | /* Key is KEY_FID2PATH + getinfo_fid2path description */ | |
1203 | keylen = cfs_size_round(sizeof(KEY_FID2PATH)) + sizeof(*gf); | |
7b81779d | 1204 | key = kzalloc(keylen, GFP_NOFS); |
bb144d09 | 1205 | if (!key) |
0a3bdb00 | 1206 | return -ENOMEM; |
d7e09d03 PT |
1207 | memcpy(key, KEY_FID2PATH, sizeof(KEY_FID2PATH)); |
1208 | memcpy(key + cfs_size_round(sizeof(KEY_FID2PATH)), gf, sizeof(*gf)); | |
1209 | ||
b0f5aad5 | 1210 | CDEBUG(D_IOCTL, "path get "DFID" from %llu #%d\n", |
d7e09d03 PT |
1211 | PFID(&gf->gf_fid), gf->gf_recno, gf->gf_linkno); |
1212 | ||
d5fdc207 JL |
1213 | if (!fid_is_sane(&gf->gf_fid)) { |
1214 | rc = -EINVAL; | |
1215 | goto out; | |
1216 | } | |
d7e09d03 PT |
1217 | |
1218 | /* Val is struct getinfo_fid2path result plus path */ | |
1219 | vallen = sizeof(*gf) + gf->gf_pathlen; | |
1220 | ||
1221 | rc = obd_get_info(NULL, exp, keylen, key, &vallen, gf, NULL); | |
1222 | if (rc != 0 && rc != -EREMOTE) | |
d5fdc207 | 1223 | goto out; |
d7e09d03 | 1224 | |
d5fdc207 JL |
1225 | if (vallen <= sizeof(*gf)) { |
1226 | rc = -EPROTO; | |
1227 | goto out; | |
1228 | } else if (vallen > sizeof(*gf) + gf->gf_pathlen) { | |
1229 | rc = -EOVERFLOW; | |
1230 | goto out; | |
1231 | } | |
d7e09d03 | 1232 | |
b0f5aad5 | 1233 | CDEBUG(D_IOCTL, "path get "DFID" from %llu #%d\n%s\n", |
d7e09d03 PT |
1234 | PFID(&gf->gf_fid), gf->gf_recno, gf->gf_linkno, gf->gf_path); |
1235 | ||
1236 | out: | |
7b81779d | 1237 | kfree(key); |
d7e09d03 PT |
1238 | return rc; |
1239 | } | |
1240 | ||
1241 | static int mdc_ioc_hsm_progress(struct obd_export *exp, | |
1242 | struct hsm_progress_kernel *hpk) | |
1243 | { | |
1244 | struct obd_import *imp = class_exp2cliimp(exp); | |
1245 | struct hsm_progress_kernel *req_hpk; | |
1246 | struct ptlrpc_request *req; | |
1247 | int rc; | |
d7e09d03 PT |
1248 | |
1249 | req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_PROGRESS, | |
1250 | LUSTRE_MDS_VERSION, MDS_HSM_PROGRESS); | |
d5fdc207 JL |
1251 | if (req == NULL) { |
1252 | rc = -ENOMEM; | |
1253 | goto out; | |
1254 | } | |
d7e09d03 PT |
1255 | |
1256 | mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, 0, 0); | |
1257 | ||
1258 | /* Copy hsm_progress struct */ | |
1259 | req_hpk = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_PROGRESS); | |
d5fdc207 JL |
1260 | if (req_hpk == NULL) { |
1261 | rc = -EPROTO; | |
1262 | goto out; | |
1263 | } | |
d7e09d03 PT |
1264 | |
1265 | *req_hpk = *hpk; | |
2d58de78 | 1266 | req_hpk->hpk_errval = lustre_errno_hton(hpk->hpk_errval); |
d7e09d03 PT |
1267 | |
1268 | ptlrpc_request_set_replen(req); | |
1269 | ||
1270 | rc = mdc_queue_wait(req); | |
d5fdc207 | 1271 | goto out; |
d7e09d03 PT |
1272 | out: |
1273 | ptlrpc_req_finished(req); | |
1274 | return rc; | |
1275 | } | |
1276 | ||
1277 | static int mdc_ioc_hsm_ct_register(struct obd_import *imp, __u32 archives) | |
1278 | { | |
1279 | __u32 *archive_mask; | |
1280 | struct ptlrpc_request *req; | |
1281 | int rc; | |
d7e09d03 PT |
1282 | |
1283 | req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_CT_REGISTER, | |
1284 | LUSTRE_MDS_VERSION, | |
1285 | MDS_HSM_CT_REGISTER); | |
d5fdc207 JL |
1286 | if (req == NULL) { |
1287 | rc = -ENOMEM; | |
1288 | goto out; | |
1289 | } | |
d7e09d03 PT |
1290 | |
1291 | mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, 0, 0); | |
1292 | ||
1293 | /* Copy hsm_progress struct */ | |
1294 | archive_mask = req_capsule_client_get(&req->rq_pill, | |
1295 | &RMF_MDS_HSM_ARCHIVE); | |
d5fdc207 JL |
1296 | if (archive_mask == NULL) { |
1297 | rc = -EPROTO; | |
1298 | goto out; | |
1299 | } | |
d7e09d03 PT |
1300 | |
1301 | *archive_mask = archives; | |
1302 | ||
1303 | ptlrpc_request_set_replen(req); | |
1304 | ||
1305 | rc = mdc_queue_wait(req); | |
d5fdc207 | 1306 | goto out; |
d7e09d03 PT |
1307 | out: |
1308 | ptlrpc_req_finished(req); | |
1309 | return rc; | |
1310 | } | |
1311 | ||
1312 | static int mdc_ioc_hsm_current_action(struct obd_export *exp, | |
1313 | struct md_op_data *op_data) | |
1314 | { | |
1315 | struct hsm_current_action *hca = op_data->op_data; | |
1316 | struct hsm_current_action *req_hca; | |
1317 | struct ptlrpc_request *req; | |
1318 | int rc; | |
d7e09d03 PT |
1319 | |
1320 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), | |
1321 | &RQF_MDS_HSM_ACTION); | |
1322 | if (req == NULL) | |
0a3bdb00 | 1323 | return -ENOMEM; |
d7e09d03 PT |
1324 | |
1325 | mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1); | |
1326 | ||
1327 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_ACTION); | |
1328 | if (rc) { | |
1329 | ptlrpc_request_free(req); | |
0a3bdb00 | 1330 | return rc; |
d7e09d03 PT |
1331 | } |
1332 | ||
1333 | mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1, | |
1334 | OBD_MD_FLRMTPERM, 0, op_data->op_suppgids[0], 0); | |
1335 | ||
1336 | ptlrpc_request_set_replen(req); | |
1337 | ||
1338 | rc = mdc_queue_wait(req); | |
1339 | if (rc) | |
d5fdc207 | 1340 | goto out; |
d7e09d03 PT |
1341 | |
1342 | req_hca = req_capsule_server_get(&req->rq_pill, | |
1343 | &RMF_MDS_HSM_CURRENT_ACTION); | |
d5fdc207 JL |
1344 | if (req_hca == NULL) { |
1345 | rc = -EPROTO; | |
1346 | goto out; | |
1347 | } | |
d7e09d03 PT |
1348 | |
1349 | *hca = *req_hca; | |
1350 | ||
d7e09d03 PT |
1351 | out: |
1352 | ptlrpc_req_finished(req); | |
1353 | return rc; | |
1354 | } | |
1355 | ||
1356 | static int mdc_ioc_hsm_ct_unregister(struct obd_import *imp) | |
1357 | { | |
1358 | struct ptlrpc_request *req; | |
1359 | int rc; | |
d7e09d03 PT |
1360 | |
1361 | req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_CT_UNREGISTER, | |
1362 | LUSTRE_MDS_VERSION, | |
1363 | MDS_HSM_CT_UNREGISTER); | |
d5fdc207 JL |
1364 | if (req == NULL) { |
1365 | rc = -ENOMEM; | |
1366 | goto out; | |
1367 | } | |
d7e09d03 PT |
1368 | |
1369 | mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, 0, 0); | |
1370 | ||
1371 | ptlrpc_request_set_replen(req); | |
1372 | ||
1373 | rc = mdc_queue_wait(req); | |
d5fdc207 | 1374 | goto out; |
d7e09d03 PT |
1375 | out: |
1376 | ptlrpc_req_finished(req); | |
1377 | return rc; | |
1378 | } | |
1379 | ||
1380 | static int mdc_ioc_hsm_state_get(struct obd_export *exp, | |
1381 | struct md_op_data *op_data) | |
1382 | { | |
1383 | struct hsm_user_state *hus = op_data->op_data; | |
1384 | struct hsm_user_state *req_hus; | |
1385 | struct ptlrpc_request *req; | |
1386 | int rc; | |
d7e09d03 PT |
1387 | |
1388 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), | |
1389 | &RQF_MDS_HSM_STATE_GET); | |
1390 | if (req == NULL) | |
0a3bdb00 | 1391 | return -ENOMEM; |
d7e09d03 PT |
1392 | |
1393 | mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1); | |
1394 | ||
1395 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_STATE_GET); | |
1396 | if (rc != 0) { | |
1397 | ptlrpc_request_free(req); | |
0a3bdb00 | 1398 | return rc; |
d7e09d03 PT |
1399 | } |
1400 | ||
1401 | mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1, | |
1402 | OBD_MD_FLRMTPERM, 0, op_data->op_suppgids[0], 0); | |
1403 | ||
1404 | ptlrpc_request_set_replen(req); | |
1405 | ||
1406 | rc = mdc_queue_wait(req); | |
1407 | if (rc) | |
d5fdc207 | 1408 | goto out; |
d7e09d03 PT |
1409 | |
1410 | req_hus = req_capsule_server_get(&req->rq_pill, &RMF_HSM_USER_STATE); | |
d5fdc207 JL |
1411 | if (req_hus == NULL) { |
1412 | rc = -EPROTO; | |
1413 | goto out; | |
1414 | } | |
d7e09d03 PT |
1415 | |
1416 | *hus = *req_hus; | |
1417 | ||
d7e09d03 PT |
1418 | out: |
1419 | ptlrpc_req_finished(req); | |
1420 | return rc; | |
1421 | } | |
1422 | ||
1423 | static int mdc_ioc_hsm_state_set(struct obd_export *exp, | |
1424 | struct md_op_data *op_data) | |
1425 | { | |
1426 | struct hsm_state_set *hss = op_data->op_data; | |
1427 | struct hsm_state_set *req_hss; | |
1428 | struct ptlrpc_request *req; | |
1429 | int rc; | |
d7e09d03 PT |
1430 | |
1431 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), | |
1432 | &RQF_MDS_HSM_STATE_SET); | |
1433 | if (req == NULL) | |
0a3bdb00 | 1434 | return -ENOMEM; |
d7e09d03 PT |
1435 | |
1436 | mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1); | |
1437 | ||
1438 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_STATE_SET); | |
1439 | if (rc) { | |
1440 | ptlrpc_request_free(req); | |
0a3bdb00 | 1441 | return rc; |
d7e09d03 PT |
1442 | } |
1443 | ||
1444 | mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1, | |
1445 | OBD_MD_FLRMTPERM, 0, op_data->op_suppgids[0], 0); | |
1446 | ||
1447 | /* Copy states */ | |
1448 | req_hss = req_capsule_client_get(&req->rq_pill, &RMF_HSM_STATE_SET); | |
d5fdc207 JL |
1449 | if (req_hss == NULL) { |
1450 | rc = -EPROTO; | |
1451 | goto out; | |
1452 | } | |
d7e09d03 PT |
1453 | *req_hss = *hss; |
1454 | ||
1455 | ptlrpc_request_set_replen(req); | |
1456 | ||
1457 | rc = mdc_queue_wait(req); | |
d5fdc207 | 1458 | goto out; |
d7e09d03 | 1459 | |
d7e09d03 PT |
1460 | out: |
1461 | ptlrpc_req_finished(req); | |
1462 | return rc; | |
1463 | } | |
1464 | ||
1465 | static int mdc_ioc_hsm_request(struct obd_export *exp, | |
1466 | struct hsm_user_request *hur) | |
1467 | { | |
1468 | struct obd_import *imp = class_exp2cliimp(exp); | |
1469 | struct ptlrpc_request *req; | |
1470 | struct hsm_request *req_hr; | |
1471 | struct hsm_user_item *req_hui; | |
1472 | char *req_opaque; | |
1473 | int rc; | |
d7e09d03 PT |
1474 | |
1475 | req = ptlrpc_request_alloc(imp, &RQF_MDS_HSM_REQUEST); | |
d5fdc207 JL |
1476 | if (req == NULL) { |
1477 | rc = -ENOMEM; | |
1478 | goto out; | |
1479 | } | |
d7e09d03 PT |
1480 | |
1481 | req_capsule_set_size(&req->rq_pill, &RMF_MDS_HSM_USER_ITEM, RCL_CLIENT, | |
1482 | hur->hur_request.hr_itemcount | |
1483 | * sizeof(struct hsm_user_item)); | |
1484 | req_capsule_set_size(&req->rq_pill, &RMF_GENERIC_DATA, RCL_CLIENT, | |
1485 | hur->hur_request.hr_data_len); | |
1486 | ||
1487 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_REQUEST); | |
1488 | if (rc) { | |
1489 | ptlrpc_request_free(req); | |
0a3bdb00 | 1490 | return rc; |
d7e09d03 PT |
1491 | } |
1492 | ||
1493 | mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, 0, 0); | |
1494 | ||
1495 | /* Copy hsm_request struct */ | |
1496 | req_hr = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_REQUEST); | |
d5fdc207 JL |
1497 | if (req_hr == NULL) { |
1498 | rc = -EPROTO; | |
1499 | goto out; | |
1500 | } | |
d7e09d03 PT |
1501 | *req_hr = hur->hur_request; |
1502 | ||
1503 | /* Copy hsm_user_item structs */ | |
1504 | req_hui = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_USER_ITEM); | |
d5fdc207 JL |
1505 | if (req_hui == NULL) { |
1506 | rc = -EPROTO; | |
1507 | goto out; | |
1508 | } | |
d7e09d03 PT |
1509 | memcpy(req_hui, hur->hur_user_item, |
1510 | hur->hur_request.hr_itemcount * sizeof(struct hsm_user_item)); | |
1511 | ||
1512 | /* Copy opaque field */ | |
1513 | req_opaque = req_capsule_client_get(&req->rq_pill, &RMF_GENERIC_DATA); | |
d5fdc207 JL |
1514 | if (req_opaque == NULL) { |
1515 | rc = -EPROTO; | |
1516 | goto out; | |
1517 | } | |
d7e09d03 PT |
1518 | memcpy(req_opaque, hur_data(hur), hur->hur_request.hr_data_len); |
1519 | ||
1520 | ptlrpc_request_set_replen(req); | |
1521 | ||
1522 | rc = mdc_queue_wait(req); | |
d5fdc207 | 1523 | goto out; |
d7e09d03 PT |
1524 | |
1525 | out: | |
1526 | ptlrpc_req_finished(req); | |
1527 | return rc; | |
1528 | } | |
1529 | ||
1530 | static struct kuc_hdr *changelog_kuc_hdr(char *buf, int len, int flags) | |
1531 | { | |
1532 | struct kuc_hdr *lh = (struct kuc_hdr *)buf; | |
1533 | ||
18e042f0 | 1534 | LASSERT(len <= KUC_CHANGELOG_MSG_MAXSIZE); |
d7e09d03 PT |
1535 | |
1536 | lh->kuc_magic = KUC_MAGIC; | |
1537 | lh->kuc_transport = KUC_TRANSPORT_CHANGELOG; | |
1538 | lh->kuc_flags = flags; | |
1539 | lh->kuc_msgtype = CL_RECORD; | |
1540 | lh->kuc_msglen = len; | |
1541 | return lh; | |
1542 | } | |
1543 | ||
1544 | #define D_CHANGELOG 0 | |
1545 | ||
1546 | struct changelog_show { | |
1547 | __u64 cs_startrec; | |
1548 | __u32 cs_flags; | |
1549 | struct file *cs_fp; | |
1550 | char *cs_buf; | |
1551 | struct obd_device *cs_obd; | |
1552 | }; | |
1553 | ||
e377988e | 1554 | static int changelog_kkuc_cb(const struct lu_env *env, struct llog_handle *llh, |
d7e09d03 PT |
1555 | struct llog_rec_hdr *hdr, void *data) |
1556 | { | |
1557 | struct changelog_show *cs = data; | |
1558 | struct llog_changelog_rec *rec = (struct llog_changelog_rec *)hdr; | |
1559 | struct kuc_hdr *lh; | |
1560 | int len, rc; | |
d7e09d03 | 1561 | |
e377988e AD |
1562 | if (rec->cr_hdr.lrh_type != CHANGELOG_REC) { |
1563 | rc = -EINVAL; | |
1564 | CERROR("%s: not a changelog rec %x/%d: rc = %d\n", | |
1565 | cs->cs_obd->obd_name, rec->cr_hdr.lrh_type, | |
1566 | rec->cr.cr_type, rc); | |
0a3bdb00 | 1567 | return rc; |
d7e09d03 PT |
1568 | } |
1569 | ||
1570 | if (rec->cr.cr_index < cs->cs_startrec) { | |
1571 | /* Skip entries earlier than what we are interested in */ | |
b0f5aad5 | 1572 | CDEBUG(D_CHANGELOG, "rec=%llu start=%llu\n", |
d7e09d03 | 1573 | rec->cr.cr_index, cs->cs_startrec); |
0a3bdb00 | 1574 | return 0; |
d7e09d03 PT |
1575 | } |
1576 | ||
b0f5aad5 | 1577 | CDEBUG(D_CHANGELOG, "%llu %02d%-5s %llu 0x%x t="DFID" p="DFID |
d7e09d03 PT |
1578 | " %.*s\n", rec->cr.cr_index, rec->cr.cr_type, |
1579 | changelog_type2str(rec->cr.cr_type), rec->cr.cr_time, | |
1580 | rec->cr.cr_flags & CLF_FLAGMASK, | |
1581 | PFID(&rec->cr.cr_tfid), PFID(&rec->cr.cr_pfid), | |
1582 | rec->cr.cr_namelen, changelog_rec_name(&rec->cr)); | |
1583 | ||
1584 | len = sizeof(*lh) + changelog_rec_size(&rec->cr) + rec->cr.cr_namelen; | |
1585 | ||
1586 | /* Set up the message */ | |
1587 | lh = changelog_kuc_hdr(cs->cs_buf, len, cs->cs_flags); | |
1588 | memcpy(lh + 1, &rec->cr, len - sizeof(*lh)); | |
1589 | ||
1590 | rc = libcfs_kkuc_msg_put(cs->cs_fp, lh); | |
301af906 | 1591 | CDEBUG(D_CHANGELOG, "kucmsg fp %p len %d rc %d\n", cs->cs_fp, len, rc); |
d7e09d03 | 1592 | |
0a3bdb00 | 1593 | return rc; |
d7e09d03 PT |
1594 | } |
1595 | ||
1596 | static int mdc_changelog_send_thread(void *csdata) | |
1597 | { | |
1598 | struct changelog_show *cs = csdata; | |
1599 | struct llog_ctxt *ctxt = NULL; | |
1600 | struct llog_handle *llh = NULL; | |
1601 | struct kuc_hdr *kuch; | |
1602 | int rc; | |
1603 | ||
b0f5aad5 | 1604 | CDEBUG(D_CHANGELOG, "changelog to fp=%p start %llu\n", |
d7e09d03 PT |
1605 | cs->cs_fp, cs->cs_startrec); |
1606 | ||
7b81779d | 1607 | cs->cs_buf = kzalloc(KUC_CHANGELOG_MSG_MAXSIZE, GFP_NOFS); |
bb144d09 | 1608 | if (!cs->cs_buf) { |
d5fdc207 JL |
1609 | rc = -ENOMEM; |
1610 | goto out; | |
1611 | } | |
d7e09d03 PT |
1612 | |
1613 | /* Set up the remote catalog handle */ | |
1614 | ctxt = llog_get_context(cs->cs_obd, LLOG_CHANGELOG_REPL_CTXT); | |
d5fdc207 JL |
1615 | if (ctxt == NULL) { |
1616 | rc = -ENOENT; | |
1617 | goto out; | |
1618 | } | |
d7e09d03 PT |
1619 | rc = llog_open(NULL, ctxt, &llh, NULL, CHANGELOG_CATALOG, |
1620 | LLOG_OPEN_EXISTS); | |
1621 | if (rc) { | |
1622 | CERROR("%s: fail to open changelog catalog: rc = %d\n", | |
1623 | cs->cs_obd->obd_name, rc); | |
d5fdc207 | 1624 | goto out; |
d7e09d03 PT |
1625 | } |
1626 | rc = llog_init_handle(NULL, llh, LLOG_F_IS_CAT, NULL); | |
1627 | if (rc) { | |
1628 | CERROR("llog_init_handle failed %d\n", rc); | |
d5fdc207 | 1629 | goto out; |
d7e09d03 PT |
1630 | } |
1631 | ||
e377988e | 1632 | rc = llog_cat_process(NULL, llh, changelog_kkuc_cb, cs, 0, 0); |
d7e09d03 PT |
1633 | |
1634 | /* Send EOF no matter what our result */ | |
4a87df3e CP |
1635 | kuch = changelog_kuc_hdr(cs->cs_buf, sizeof(*kuch), cs->cs_flags); |
1636 | if (kuch) { | |
d7e09d03 PT |
1637 | kuch->kuc_msgtype = CL_EOF; |
1638 | libcfs_kkuc_msg_put(cs->cs_fp, kuch); | |
1639 | } | |
1640 | ||
1641 | out: | |
1642 | fput(cs->cs_fp); | |
1643 | if (llh) | |
1644 | llog_cat_close(NULL, llh); | |
1645 | if (ctxt) | |
1646 | llog_ctxt_put(ctxt); | |
6fa7cbab | 1647 | kfree(cs->cs_buf); |
7b81779d | 1648 | kfree(cs); |
d7e09d03 PT |
1649 | return rc; |
1650 | } | |
1651 | ||
1652 | static int mdc_ioc_changelog_send(struct obd_device *obd, | |
1653 | struct ioc_changelog *icc) | |
1654 | { | |
1655 | struct changelog_show *cs; | |
1656 | int rc; | |
1657 | ||
1658 | /* Freed in mdc_changelog_send_thread */ | |
7b81779d | 1659 | cs = kzalloc(sizeof(*cs), GFP_NOFS); |
d7e09d03 PT |
1660 | if (!cs) |
1661 | return -ENOMEM; | |
1662 | ||
1663 | cs->cs_obd = obd; | |
1664 | cs->cs_startrec = icc->icc_recno; | |
1665 | /* matching fput in mdc_changelog_send_thread */ | |
1666 | cs->cs_fp = fget(icc->icc_id); | |
1667 | cs->cs_flags = icc->icc_flags; | |
1668 | ||
1669 | /* | |
1670 | * New thread because we should return to user app before | |
1671 | * writing into our pipe | |
1672 | */ | |
1673 | rc = PTR_ERR(kthread_run(mdc_changelog_send_thread, cs, | |
1674 | "mdc_clg_send_thread")); | |
1675 | if (!IS_ERR_VALUE(rc)) { | |
1676 | CDEBUG(D_CHANGELOG, "start changelog thread\n"); | |
1677 | return 0; | |
1678 | } | |
1679 | ||
1680 | CERROR("Failed to start changelog thread: %d\n", rc); | |
7b81779d | 1681 | kfree(cs); |
d7e09d03 PT |
1682 | return rc; |
1683 | } | |
1684 | ||
1685 | static int mdc_ioc_hsm_ct_start(struct obd_export *exp, | |
1686 | struct lustre_kernelcomm *lk); | |
1687 | ||
1688 | static int mdc_quotacheck(struct obd_device *unused, struct obd_export *exp, | |
1689 | struct obd_quotactl *oqctl) | |
1690 | { | |
1691 | struct client_obd *cli = &exp->exp_obd->u.cli; | |
1692 | struct ptlrpc_request *req; | |
1693 | struct obd_quotactl *body; | |
1694 | int rc; | |
d7e09d03 PT |
1695 | |
1696 | req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), | |
1697 | &RQF_MDS_QUOTACHECK, LUSTRE_MDS_VERSION, | |
1698 | MDS_QUOTACHECK); | |
1699 | if (req == NULL) | |
0a3bdb00 | 1700 | return -ENOMEM; |
d7e09d03 PT |
1701 | |
1702 | body = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL); | |
1703 | *body = *oqctl; | |
1704 | ||
1705 | ptlrpc_request_set_replen(req); | |
1706 | ||
1707 | /* the next poll will find -ENODATA, that means quotacheck is | |
1708 | * going on */ | |
1709 | cli->cl_qchk_stat = -ENODATA; | |
1710 | rc = ptlrpc_queue_wait(req); | |
1711 | if (rc) | |
1712 | cli->cl_qchk_stat = rc; | |
1713 | ptlrpc_req_finished(req); | |
0a3bdb00 | 1714 | return rc; |
d7e09d03 PT |
1715 | } |
1716 | ||
1717 | static int mdc_quota_poll_check(struct obd_export *exp, | |
1718 | struct if_quotacheck *qchk) | |
1719 | { | |
1720 | struct client_obd *cli = &exp->exp_obd->u.cli; | |
1721 | int rc; | |
d7e09d03 PT |
1722 | |
1723 | qchk->obd_uuid = cli->cl_target_uuid; | |
1724 | memcpy(qchk->obd_type, LUSTRE_MDS_NAME, strlen(LUSTRE_MDS_NAME)); | |
1725 | ||
1726 | rc = cli->cl_qchk_stat; | |
1727 | /* the client is not the previous one */ | |
1728 | if (rc == CL_NOT_QUOTACHECKED) | |
1729 | rc = -EINTR; | |
0a3bdb00 | 1730 | return rc; |
d7e09d03 PT |
1731 | } |
1732 | ||
1733 | static int mdc_quotactl(struct obd_device *unused, struct obd_export *exp, | |
1734 | struct obd_quotactl *oqctl) | |
1735 | { | |
1736 | struct ptlrpc_request *req; | |
1737 | struct obd_quotactl *oqc; | |
1738 | int rc; | |
d7e09d03 PT |
1739 | |
1740 | req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), | |
1741 | &RQF_MDS_QUOTACTL, LUSTRE_MDS_VERSION, | |
1742 | MDS_QUOTACTL); | |
1743 | if (req == NULL) | |
0a3bdb00 | 1744 | return -ENOMEM; |
d7e09d03 PT |
1745 | |
1746 | oqc = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL); | |
1747 | *oqc = *oqctl; | |
1748 | ||
1749 | ptlrpc_request_set_replen(req); | |
1750 | ptlrpc_at_set_req_timeout(req); | |
1751 | req->rq_no_resend = 1; | |
1752 | ||
1753 | rc = ptlrpc_queue_wait(req); | |
1754 | if (rc) | |
1755 | CERROR("ptlrpc_queue_wait failed, rc: %d\n", rc); | |
1756 | ||
4a87df3e CP |
1757 | if (req->rq_repmsg) { |
1758 | oqc = req_capsule_server_get(&req->rq_pill, &RMF_OBD_QUOTACTL); | |
1759 | if (oqc) { | |
1760 | *oqctl = *oqc; | |
1761 | } else if (!rc) { | |
ffdac6ce | 1762 | CERROR("Can't unpack obd_quotactl\n"); |
4a87df3e CP |
1763 | rc = -EPROTO; |
1764 | } | |
d7e09d03 | 1765 | } else if (!rc) { |
4a87df3e | 1766 | CERROR("Can't unpack obd_quotactl\n"); |
d7e09d03 PT |
1767 | rc = -EPROTO; |
1768 | } | |
1769 | ptlrpc_req_finished(req); | |
1770 | ||
0a3bdb00 | 1771 | return rc; |
d7e09d03 PT |
1772 | } |
1773 | ||
1774 | static int mdc_ioc_swap_layouts(struct obd_export *exp, | |
1775 | struct md_op_data *op_data) | |
1776 | { | |
1777 | LIST_HEAD(cancels); | |
1778 | struct ptlrpc_request *req; | |
1779 | int rc, count; | |
1780 | struct mdc_swap_layouts *msl, *payload; | |
d7e09d03 PT |
1781 | |
1782 | msl = op_data->op_data; | |
1783 | ||
1784 | /* When the MDT will get the MDS_SWAP_LAYOUTS RPC the | |
1785 | * first thing it will do is to cancel the 2 layout | |
1786 | * locks hold by this client. | |
1787 | * So the client must cancel its layout locks on the 2 fids | |
1788 | * with the request RPC to avoid extra RPC round trips | |
1789 | */ | |
1790 | count = mdc_resource_get_unused(exp, &op_data->op_fid1, &cancels, | |
1791 | LCK_CR, MDS_INODELOCK_LAYOUT); | |
1792 | count += mdc_resource_get_unused(exp, &op_data->op_fid2, &cancels, | |
1793 | LCK_CR, MDS_INODELOCK_LAYOUT); | |
1794 | ||
1795 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), | |
1796 | &RQF_MDS_SWAP_LAYOUTS); | |
1797 | if (req == NULL) { | |
1798 | ldlm_lock_list_put(&cancels, l_bl_ast, count); | |
0a3bdb00 | 1799 | return -ENOMEM; |
d7e09d03 PT |
1800 | } |
1801 | ||
1802 | mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1); | |
1803 | mdc_set_capa_size(req, &RMF_CAPA2, op_data->op_capa2); | |
1804 | ||
1805 | rc = mdc_prep_elc_req(exp, req, MDS_SWAP_LAYOUTS, &cancels, count); | |
1806 | if (rc) { | |
1807 | ptlrpc_request_free(req); | |
0a3bdb00 | 1808 | return rc; |
d7e09d03 PT |
1809 | } |
1810 | ||
1811 | mdc_swap_layouts_pack(req, op_data); | |
1812 | ||
1813 | payload = req_capsule_client_get(&req->rq_pill, &RMF_SWAP_LAYOUTS); | |
1814 | LASSERT(payload); | |
1815 | ||
1816 | *payload = *msl; | |
1817 | ||
1818 | ptlrpc_request_set_replen(req); | |
1819 | ||
1820 | rc = ptlrpc_queue_wait(req); | |
d7e09d03 | 1821 | |
d7e09d03 PT |
1822 | ptlrpc_req_finished(req); |
1823 | return rc; | |
1824 | } | |
1825 | ||
1826 | static int mdc_iocontrol(unsigned int cmd, struct obd_export *exp, int len, | |
1827 | void *karg, void *uarg) | |
1828 | { | |
1829 | struct obd_device *obd = exp->exp_obd; | |
1830 | struct obd_ioctl_data *data = karg; | |
1831 | struct obd_import *imp = obd->u.cli.cl_import; | |
d7e09d03 | 1832 | int rc; |
d7e09d03 PT |
1833 | |
1834 | if (!try_module_get(THIS_MODULE)) { | |
1835 | CERROR("Can't get module. Is it alive?"); | |
1836 | return -EINVAL; | |
1837 | } | |
1838 | switch (cmd) { | |
1839 | case OBD_IOC_CHANGELOG_SEND: | |
1840 | rc = mdc_ioc_changelog_send(obd, karg); | |
d5fdc207 | 1841 | goto out; |
d7e09d03 PT |
1842 | case OBD_IOC_CHANGELOG_CLEAR: { |
1843 | struct ioc_changelog *icc = karg; | |
1a4cd3e9 SM |
1844 | struct changelog_setinfo cs = { |
1845 | .cs_recno = icc->icc_recno, | |
1846 | .cs_id = icc->icc_id | |
1847 | }; | |
1848 | ||
d7e09d03 PT |
1849 | rc = obd_set_info_async(NULL, exp, strlen(KEY_CHANGELOG_CLEAR), |
1850 | KEY_CHANGELOG_CLEAR, sizeof(cs), &cs, | |
1851 | NULL); | |
d5fdc207 | 1852 | goto out; |
d7e09d03 PT |
1853 | } |
1854 | case OBD_IOC_FID2PATH: | |
1855 | rc = mdc_ioc_fid2path(exp, karg); | |
d5fdc207 | 1856 | goto out; |
d7e09d03 PT |
1857 | case LL_IOC_HSM_CT_START: |
1858 | rc = mdc_ioc_hsm_ct_start(exp, karg); | |
78eb9092 TL |
1859 | /* ignore if it was already registered on this MDS. */ |
1860 | if (rc == -EEXIST) | |
1861 | rc = 0; | |
d5fdc207 | 1862 | goto out; |
d7e09d03 PT |
1863 | case LL_IOC_HSM_PROGRESS: |
1864 | rc = mdc_ioc_hsm_progress(exp, karg); | |
d5fdc207 | 1865 | goto out; |
d7e09d03 PT |
1866 | case LL_IOC_HSM_STATE_GET: |
1867 | rc = mdc_ioc_hsm_state_get(exp, karg); | |
d5fdc207 | 1868 | goto out; |
d7e09d03 PT |
1869 | case LL_IOC_HSM_STATE_SET: |
1870 | rc = mdc_ioc_hsm_state_set(exp, karg); | |
d5fdc207 | 1871 | goto out; |
d7e09d03 PT |
1872 | case LL_IOC_HSM_ACTION: |
1873 | rc = mdc_ioc_hsm_current_action(exp, karg); | |
d5fdc207 | 1874 | goto out; |
d7e09d03 PT |
1875 | case LL_IOC_HSM_REQUEST: |
1876 | rc = mdc_ioc_hsm_request(exp, karg); | |
d5fdc207 | 1877 | goto out; |
d7e09d03 PT |
1878 | case OBD_IOC_CLIENT_RECOVER: |
1879 | rc = ptlrpc_recover_import(imp, data->ioc_inlbuf1, 0); | |
1880 | if (rc < 0) | |
d5fdc207 JL |
1881 | goto out; |
1882 | rc = 0; | |
1883 | goto out; | |
d7e09d03 PT |
1884 | case IOC_OSC_SET_ACTIVE: |
1885 | rc = ptlrpc_set_import_active(imp, data->ioc_offset); | |
d5fdc207 | 1886 | goto out; |
d7e09d03 PT |
1887 | case OBD_IOC_POLL_QUOTACHECK: |
1888 | rc = mdc_quota_poll_check(exp, (struct if_quotacheck *)karg); | |
d5fdc207 | 1889 | goto out; |
d7e09d03 PT |
1890 | case OBD_IOC_PING_TARGET: |
1891 | rc = ptlrpc_obd_ping(obd); | |
d5fdc207 | 1892 | goto out; |
d7e09d03 PT |
1893 | /* |
1894 | * Normally IOC_OBD_STATFS, OBD_IOC_QUOTACTL iocontrol are handled by | |
1895 | * LMV instead of MDC. But when the cluster is upgraded from 1.8, | |
1896 | * there'd be no LMV layer thus we might be called here. Eventually | |
1897 | * this code should be removed. | |
1898 | * bz20731, LU-592. | |
1899 | */ | |
1900 | case IOC_OBD_STATFS: { | |
1901 | struct obd_statfs stat_buf = {0}; | |
1902 | ||
d5fdc207 JL |
1903 | if (*((__u32 *) data->ioc_inlbuf2) != 0) { |
1904 | rc = -ENODEV; | |
1905 | goto out; | |
1906 | } | |
d7e09d03 PT |
1907 | |
1908 | /* copy UUID */ | |
1909 | if (copy_to_user(data->ioc_pbuf2, obd2cli_tgt(obd), | |
ef4356bf DC |
1910 | min_t(size_t, data->ioc_plen2, |
1911 | sizeof(struct obd_uuid)))) { | |
d5fdc207 JL |
1912 | rc = -EFAULT; |
1913 | goto out; | |
1914 | } | |
d7e09d03 PT |
1915 | |
1916 | rc = mdc_statfs(NULL, obd->obd_self_export, &stat_buf, | |
1917 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), | |
1918 | 0); | |
1919 | if (rc != 0) | |
d5fdc207 | 1920 | goto out; |
d7e09d03 PT |
1921 | |
1922 | if (copy_to_user(data->ioc_pbuf1, &stat_buf, | |
ef4356bf DC |
1923 | min_t(size_t, data->ioc_plen1, |
1924 | sizeof(stat_buf)))) { | |
d5fdc207 JL |
1925 | rc = -EFAULT; |
1926 | goto out; | |
1927 | } | |
d7e09d03 | 1928 | |
d5fdc207 JL |
1929 | rc = 0; |
1930 | goto out; | |
d7e09d03 PT |
1931 | } |
1932 | case OBD_IOC_QUOTACTL: { | |
1933 | struct if_quotactl *qctl = karg; | |
1934 | struct obd_quotactl *oqctl; | |
1935 | ||
7b81779d | 1936 | oqctl = kzalloc(sizeof(*oqctl), GFP_NOFS); |
bb144d09 | 1937 | if (!oqctl) { |
d5fdc207 JL |
1938 | rc = -ENOMEM; |
1939 | goto out; | |
1940 | } | |
d7e09d03 PT |
1941 | |
1942 | QCTL_COPY(oqctl, qctl); | |
1943 | rc = obd_quotactl(exp, oqctl); | |
1944 | if (rc == 0) { | |
1945 | QCTL_COPY(qctl, oqctl); | |
1946 | qctl->qc_valid = QC_MDTIDX; | |
1947 | qctl->obd_uuid = obd->u.cli.cl_target_uuid; | |
1948 | } | |
c1f3d689 | 1949 | |
7b81779d | 1950 | kfree(oqctl); |
d5fdc207 | 1951 | goto out; |
d7e09d03 | 1952 | } |
c1f3d689 JH |
1953 | case LL_IOC_GET_CONNECT_FLAGS: |
1954 | if (copy_to_user(uarg, exp_connect_flags_ptr(exp), | |
d5fdc207 JL |
1955 | sizeof(*exp_connect_flags_ptr(exp)))) { |
1956 | rc = -EFAULT; | |
1957 | goto out; | |
1958 | } | |
c1f3d689 | 1959 | |
d5fdc207 JL |
1960 | rc = 0; |
1961 | goto out; | |
c1f3d689 | 1962 | case LL_IOC_LOV_SWAP_LAYOUTS: |
d7e09d03 | 1963 | rc = mdc_ioc_swap_layouts(exp, karg); |
d5fdc207 | 1964 | goto out; |
d7e09d03 | 1965 | default: |
c1f3d689 | 1966 | CERROR("unrecognised ioctl: cmd = %#x\n", cmd); |
d5fdc207 JL |
1967 | rc = -ENOTTY; |
1968 | goto out; | |
d7e09d03 PT |
1969 | } |
1970 | out: | |
1971 | module_put(THIS_MODULE); | |
1972 | ||
1973 | return rc; | |
1974 | } | |
1975 | ||
f6219c16 LC |
1976 | static int mdc_get_info_rpc(struct obd_export *exp, |
1977 | u32 keylen, void *key, | |
1978 | int vallen, void *val) | |
d7e09d03 PT |
1979 | { |
1980 | struct obd_import *imp = class_exp2cliimp(exp); | |
1981 | struct ptlrpc_request *req; | |
1982 | char *tmp; | |
1983 | int rc = -EINVAL; | |
d7e09d03 PT |
1984 | |
1985 | req = ptlrpc_request_alloc(imp, &RQF_MDS_GET_INFO); | |
1986 | if (req == NULL) | |
0a3bdb00 | 1987 | return -ENOMEM; |
d7e09d03 PT |
1988 | |
1989 | req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_KEY, | |
1990 | RCL_CLIENT, keylen); | |
1991 | req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_VALLEN, | |
1992 | RCL_CLIENT, sizeof(__u32)); | |
1993 | ||
1994 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GET_INFO); | |
1995 | if (rc) { | |
1996 | ptlrpc_request_free(req); | |
0a3bdb00 | 1997 | return rc; |
d7e09d03 PT |
1998 | } |
1999 | ||
2000 | tmp = req_capsule_client_get(&req->rq_pill, &RMF_GETINFO_KEY); | |
2001 | memcpy(tmp, key, keylen); | |
2002 | tmp = req_capsule_client_get(&req->rq_pill, &RMF_GETINFO_VALLEN); | |
2003 | memcpy(tmp, &vallen, sizeof(__u32)); | |
2004 | ||
2005 | req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_VAL, | |
2006 | RCL_SERVER, vallen); | |
2007 | ptlrpc_request_set_replen(req); | |
2008 | ||
2009 | rc = ptlrpc_queue_wait(req); | |
2010 | /* -EREMOTE means the get_info result is partial, and it needs to | |
2011 | * continue on another MDT, see fid2path part in lmv_iocontrol */ | |
2012 | if (rc == 0 || rc == -EREMOTE) { | |
2013 | tmp = req_capsule_server_get(&req->rq_pill, &RMF_GETINFO_VAL); | |
2014 | memcpy(val, tmp, vallen); | |
2015 | if (ptlrpc_rep_need_swab(req)) { | |
2016 | if (KEY_IS(KEY_FID2PATH)) | |
2017 | lustre_swab_fid2path(val); | |
2018 | } | |
2019 | } | |
2020 | ptlrpc_req_finished(req); | |
2021 | ||
0a3bdb00 | 2022 | return rc; |
d7e09d03 PT |
2023 | } |
2024 | ||
2025 | static void lustre_swab_hai(struct hsm_action_item *h) | |
2026 | { | |
2027 | __swab32s(&h->hai_len); | |
2028 | __swab32s(&h->hai_action); | |
2029 | lustre_swab_lu_fid(&h->hai_fid); | |
2030 | lustre_swab_lu_fid(&h->hai_dfid); | |
2031 | __swab64s(&h->hai_cookie); | |
2032 | __swab64s(&h->hai_extent.offset); | |
2033 | __swab64s(&h->hai_extent.length); | |
2034 | __swab64s(&h->hai_gid); | |
2035 | } | |
2036 | ||
2037 | static void lustre_swab_hal(struct hsm_action_list *h) | |
2038 | { | |
2039 | struct hsm_action_item *hai; | |
2040 | int i; | |
2041 | ||
2042 | __swab32s(&h->hal_version); | |
2043 | __swab32s(&h->hal_count); | |
2044 | __swab32s(&h->hal_archive_id); | |
2045 | __swab64s(&h->hal_flags); | |
2046 | hai = hai_zero(h); | |
18dfaebf | 2047 | for (i = 0; i < h->hal_count; i++, hai = hai_next(hai)) |
d7e09d03 | 2048 | lustre_swab_hai(hai); |
d7e09d03 PT |
2049 | } |
2050 | ||
2051 | static void lustre_swab_kuch(struct kuc_hdr *l) | |
2052 | { | |
2053 | __swab16s(&l->kuc_magic); | |
2054 | /* __u8 l->kuc_transport */ | |
2055 | __swab16s(&l->kuc_msgtype); | |
2056 | __swab16s(&l->kuc_msglen); | |
2057 | } | |
2058 | ||
2059 | static int mdc_ioc_hsm_ct_start(struct obd_export *exp, | |
2060 | struct lustre_kernelcomm *lk) | |
2061 | { | |
2062 | struct obd_import *imp = class_exp2cliimp(exp); | |
2063 | __u32 archive = lk->lk_data; | |
2064 | int rc = 0; | |
2065 | ||
2066 | if (lk->lk_group != KUC_GRP_HSM) { | |
2067 | CERROR("Bad copytool group %d\n", lk->lk_group); | |
2068 | return -EINVAL; | |
2069 | } | |
2070 | ||
2071 | CDEBUG(D_HSM, "CT start r%d w%d u%d g%d f%#x\n", lk->lk_rfd, lk->lk_wfd, | |
2072 | lk->lk_uid, lk->lk_group, lk->lk_flags); | |
2073 | ||
2074 | if (lk->lk_flags & LK_FLG_STOP) { | |
d7e09d03 | 2075 | /* Unregister with the coordinator */ |
78eb9092 | 2076 | rc = mdc_ioc_hsm_ct_unregister(imp); |
d7e09d03 | 2077 | } else { |
78eb9092 | 2078 | rc = mdc_ioc_hsm_ct_register(imp, archive); |
d7e09d03 PT |
2079 | } |
2080 | ||
2081 | return rc; | |
2082 | } | |
2083 | ||
2084 | /** | |
2085 | * Send a message to any listening copytools | |
2086 | * @param val KUC message (kuc_hdr + hsm_action_list) | |
2087 | * @param len total length of message | |
2088 | */ | |
2089 | static int mdc_hsm_copytool_send(int len, void *val) | |
2090 | { | |
2091 | struct kuc_hdr *lh = (struct kuc_hdr *)val; | |
2092 | struct hsm_action_list *hal = (struct hsm_action_list *)(lh + 1); | |
d7e09d03 PT |
2093 | |
2094 | if (len < sizeof(*lh) + sizeof(*hal)) { | |
2095 | CERROR("Short HSM message %d < %d\n", len, | |
2096 | (int) (sizeof(*lh) + sizeof(*hal))); | |
0a3bdb00 | 2097 | return -EPROTO; |
d7e09d03 PT |
2098 | } |
2099 | if (lh->kuc_magic == __swab16(KUC_MAGIC)) { | |
2100 | lustre_swab_kuch(lh); | |
2101 | lustre_swab_hal(hal); | |
2102 | } else if (lh->kuc_magic != KUC_MAGIC) { | |
2103 | CERROR("Bad magic %x!=%x\n", lh->kuc_magic, KUC_MAGIC); | |
0a3bdb00 | 2104 | return -EPROTO; |
d7e09d03 PT |
2105 | } |
2106 | ||
ee990b33 SM |
2107 | CDEBUG(D_HSM, |
2108 | "Received message mg=%x t=%d m=%d l=%d actions=%d on %s\n", | |
d7e09d03 PT |
2109 | lh->kuc_magic, lh->kuc_transport, lh->kuc_msgtype, |
2110 | lh->kuc_msglen, hal->hal_count, hal->hal_fsname); | |
2111 | ||
2112 | /* Broadcast to HSM listeners */ | |
da2a7272 | 2113 | return libcfs_kkuc_group_put(KUC_GRP_HSM, lh); |
d7e09d03 PT |
2114 | } |
2115 | ||
2116 | /** | |
2117 | * callback function passed to kuc for re-registering each HSM copytool | |
2118 | * running on MDC, after MDT shutdown/recovery. | |
2119 | * @param data archive id served by the copytool | |
2120 | * @param cb_arg callback argument (obd_import) | |
2121 | */ | |
2122 | static int mdc_hsm_ct_reregister(__u32 data, void *cb_arg) | |
2123 | { | |
2124 | struct obd_import *imp = (struct obd_import *)cb_arg; | |
2125 | __u32 archive = data; | |
2126 | int rc; | |
2127 | ||
2128 | CDEBUG(D_HA, "recover copytool registration to MDT (archive=%#x)\n", | |
2129 | archive); | |
2130 | rc = mdc_ioc_hsm_ct_register(imp, archive); | |
2131 | ||
2132 | /* ignore error if the copytool is already registered */ | |
2133 | return ((rc != 0) && (rc != -EEXIST)) ? rc : 0; | |
2134 | } | |
2135 | ||
2136 | /** | |
2137 | * Re-establish all kuc contexts with MDT | |
2138 | * after MDT shutdown/recovery. | |
2139 | */ | |
2140 | static int mdc_kuc_reregister(struct obd_import *imp) | |
2141 | { | |
2142 | /* re-register HSM agents */ | |
2143 | return libcfs_kkuc_group_foreach(KUC_GRP_HSM, mdc_hsm_ct_reregister, | |
2144 | (void *)imp); | |
2145 | } | |
2146 | ||
f6219c16 LC |
2147 | static int mdc_set_info_async(const struct lu_env *env, |
2148 | struct obd_export *exp, | |
2149 | u32 keylen, void *key, | |
2150 | u32 vallen, void *val, | |
2151 | struct ptlrpc_request_set *set) | |
d7e09d03 PT |
2152 | { |
2153 | struct obd_import *imp = class_exp2cliimp(exp); | |
2154 | int rc; | |
d7e09d03 PT |
2155 | |
2156 | if (KEY_IS(KEY_READ_ONLY)) { | |
2157 | if (vallen != sizeof(int)) | |
0a3bdb00 | 2158 | return -EINVAL; |
d7e09d03 PT |
2159 | |
2160 | spin_lock(&imp->imp_lock); | |
2161 | if (*((int *)val)) { | |
2162 | imp->imp_connect_flags_orig |= OBD_CONNECT_RDONLY; | |
2163 | imp->imp_connect_data.ocd_connect_flags |= | |
2164 | OBD_CONNECT_RDONLY; | |
2165 | } else { | |
2166 | imp->imp_connect_flags_orig &= ~OBD_CONNECT_RDONLY; | |
2167 | imp->imp_connect_data.ocd_connect_flags &= | |
2168 | ~OBD_CONNECT_RDONLY; | |
2169 | } | |
2170 | spin_unlock(&imp->imp_lock); | |
2171 | ||
2172 | rc = do_set_info_async(imp, MDS_SET_INFO, LUSTRE_MDS_VERSION, | |
2173 | keylen, key, vallen, val, set); | |
0a3bdb00 | 2174 | return rc; |
d7e09d03 PT |
2175 | } |
2176 | if (KEY_IS(KEY_SPTLRPC_CONF)) { | |
2177 | sptlrpc_conf_client_adapt(exp->exp_obd); | |
0a3bdb00 | 2178 | return 0; |
d7e09d03 PT |
2179 | } |
2180 | if (KEY_IS(KEY_FLUSH_CTX)) { | |
2181 | sptlrpc_import_flush_my_ctx(imp); | |
0a3bdb00 | 2182 | return 0; |
d7e09d03 | 2183 | } |
d7e09d03 PT |
2184 | if (KEY_IS(KEY_CHANGELOG_CLEAR)) { |
2185 | rc = do_set_info_async(imp, MDS_SET_INFO, LUSTRE_MDS_VERSION, | |
2186 | keylen, key, vallen, val, set); | |
0a3bdb00 | 2187 | return rc; |
d7e09d03 PT |
2188 | } |
2189 | if (KEY_IS(KEY_HSM_COPYTOOL_SEND)) { | |
2190 | rc = mdc_hsm_copytool_send(vallen, val); | |
0a3bdb00 | 2191 | return rc; |
d7e09d03 PT |
2192 | } |
2193 | ||
2194 | CERROR("Unknown key %s\n", (char *)key); | |
0a3bdb00 | 2195 | return -EINVAL; |
d7e09d03 PT |
2196 | } |
2197 | ||
f6219c16 LC |
2198 | static int mdc_get_info(const struct lu_env *env, struct obd_export *exp, |
2199 | __u32 keylen, void *key, __u32 *vallen, void *val, | |
2200 | struct lov_stripe_md *lsm) | |
d7e09d03 PT |
2201 | { |
2202 | int rc = -EINVAL; | |
2203 | ||
2204 | if (KEY_IS(KEY_MAX_EASIZE)) { | |
2205 | int mdsize, *max_easize; | |
2206 | ||
2207 | if (*vallen != sizeof(int)) | |
0a3bdb00 | 2208 | return -EINVAL; |
44779340 | 2209 | mdsize = *(int *)val; |
d7e09d03 PT |
2210 | if (mdsize > exp->exp_obd->u.cli.cl_max_mds_easize) |
2211 | exp->exp_obd->u.cli.cl_max_mds_easize = mdsize; | |
2212 | max_easize = val; | |
2213 | *max_easize = exp->exp_obd->u.cli.cl_max_mds_easize; | |
0a3bdb00 | 2214 | return 0; |
44779340 BB |
2215 | } else if (KEY_IS(KEY_DEFAULT_EASIZE)) { |
2216 | int *default_easize; | |
2217 | ||
2218 | if (*vallen != sizeof(int)) | |
2219 | return -EINVAL; | |
2220 | default_easize = val; | |
2221 | *default_easize = exp->exp_obd->u.cli.cl_default_mds_easize; | |
2222 | return 0; | |
2223 | } else if (KEY_IS(KEY_MAX_COOKIESIZE)) { | |
2224 | int mdsize, *max_cookiesize; | |
2225 | ||
2226 | if (*vallen != sizeof(int)) | |
2227 | return -EINVAL; | |
2228 | mdsize = *(int *)val; | |
2229 | if (mdsize > exp->exp_obd->u.cli.cl_max_mds_cookiesize) | |
2230 | exp->exp_obd->u.cli.cl_max_mds_cookiesize = mdsize; | |
2231 | max_cookiesize = val; | |
2232 | *max_cookiesize = exp->exp_obd->u.cli.cl_max_mds_cookiesize; | |
2233 | return 0; | |
2234 | } else if (KEY_IS(KEY_DEFAULT_COOKIESIZE)) { | |
2235 | int *default_cookiesize; | |
2236 | ||
2237 | if (*vallen != sizeof(int)) | |
2238 | return -EINVAL; | |
2239 | default_cookiesize = val; | |
2240 | *default_cookiesize = | |
2241 | exp->exp_obd->u.cli.cl_default_mds_cookiesize; | |
2242 | return 0; | |
d7e09d03 PT |
2243 | } else if (KEY_IS(KEY_CONN_DATA)) { |
2244 | struct obd_import *imp = class_exp2cliimp(exp); | |
2245 | struct obd_connect_data *data = val; | |
2246 | ||
2247 | if (*vallen != sizeof(*data)) | |
0a3bdb00 | 2248 | return -EINVAL; |
d7e09d03 PT |
2249 | |
2250 | *data = imp->imp_connect_data; | |
0a3bdb00 | 2251 | return 0; |
d7e09d03 PT |
2252 | } else if (KEY_IS(KEY_TGT_COUNT)) { |
2253 | *((int *)val) = 1; | |
0a3bdb00 | 2254 | return 0; |
d7e09d03 PT |
2255 | } |
2256 | ||
2257 | rc = mdc_get_info_rpc(exp, keylen, key, *vallen, val); | |
2258 | ||
0a3bdb00 | 2259 | return rc; |
d7e09d03 PT |
2260 | } |
2261 | ||
f6219c16 LC |
2262 | static int mdc_sync(struct obd_export *exp, const struct lu_fid *fid, |
2263 | struct obd_capa *oc, struct ptlrpc_request **request) | |
d7e09d03 PT |
2264 | { |
2265 | struct ptlrpc_request *req; | |
2266 | int rc; | |
d7e09d03 PT |
2267 | |
2268 | *request = NULL; | |
2269 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_SYNC); | |
2270 | if (req == NULL) | |
0a3bdb00 | 2271 | return -ENOMEM; |
d7e09d03 PT |
2272 | |
2273 | mdc_set_capa_size(req, &RMF_CAPA1, oc); | |
2274 | ||
2275 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_SYNC); | |
2276 | if (rc) { | |
2277 | ptlrpc_request_free(req); | |
0a3bdb00 | 2278 | return rc; |
d7e09d03 PT |
2279 | } |
2280 | ||
2281 | mdc_pack_body(req, fid, oc, 0, 0, -1, 0); | |
2282 | ||
2283 | ptlrpc_request_set_replen(req); | |
2284 | ||
2285 | rc = ptlrpc_queue_wait(req); | |
2286 | if (rc) | |
2287 | ptlrpc_req_finished(req); | |
2288 | else | |
2289 | *request = req; | |
0a3bdb00 | 2290 | return rc; |
d7e09d03 PT |
2291 | } |
2292 | ||
2293 | static int mdc_import_event(struct obd_device *obd, struct obd_import *imp, | |
2294 | enum obd_import_event event) | |
2295 | { | |
2296 | int rc = 0; | |
2297 | ||
2298 | LASSERT(imp->imp_obd == obd); | |
2299 | ||
2300 | switch (event) { | |
2301 | case IMP_EVENT_DISCON: { | |
2302 | #if 0 | |
2303 | /* XXX Pass event up to OBDs stack. used only for FLD now */ | |
2304 | rc = obd_notify_observer(obd, obd, OBD_NOTIFY_DISCON, NULL); | |
2305 | #endif | |
2306 | break; | |
2307 | } | |
2308 | case IMP_EVENT_INACTIVE: { | |
2309 | struct client_obd *cli = &obd->u.cli; | |
2310 | /* | |
2311 | * Flush current sequence to make client obtain new one | |
2312 | * from server in case of disconnect/reconnect. | |
2313 | */ | |
2314 | if (cli->cl_seq != NULL) | |
2315 | seq_client_flush(cli->cl_seq); | |
2316 | ||
2317 | rc = obd_notify_observer(obd, obd, OBD_NOTIFY_INACTIVE, NULL); | |
2318 | break; | |
2319 | } | |
2320 | case IMP_EVENT_INVALIDATE: { | |
2321 | struct ldlm_namespace *ns = obd->obd_namespace; | |
2322 | ||
2323 | ldlm_namespace_cleanup(ns, LDLM_FL_LOCAL_ONLY); | |
2324 | ||
2325 | break; | |
2326 | } | |
2327 | case IMP_EVENT_ACTIVE: | |
2328 | rc = obd_notify_observer(obd, obd, OBD_NOTIFY_ACTIVE, NULL); | |
78eb9092 | 2329 | /* redo the kuc registration after reconnecting */ |
d7e09d03 PT |
2330 | if (rc == 0) |
2331 | rc = mdc_kuc_reregister(imp); | |
2332 | break; | |
2333 | case IMP_EVENT_OCD: | |
2334 | rc = obd_notify_observer(obd, obd, OBD_NOTIFY_OCD, NULL); | |
2335 | break; | |
2336 | case IMP_EVENT_DEACTIVATE: | |
2337 | case IMP_EVENT_ACTIVATE: | |
2338 | break; | |
2339 | default: | |
2340 | CERROR("Unknown import event %x\n", event); | |
2341 | LBUG(); | |
2342 | } | |
0a3bdb00 | 2343 | return rc; |
d7e09d03 PT |
2344 | } |
2345 | ||
2346 | int mdc_fid_alloc(struct obd_export *exp, struct lu_fid *fid, | |
2347 | struct md_op_data *op_data) | |
2348 | { | |
2349 | struct client_obd *cli = &exp->exp_obd->u.cli; | |
2350 | struct lu_client_seq *seq = cli->cl_seq; | |
29aaf496 | 2351 | |
0a3bdb00 | 2352 | return seq_client_alloc_fid(NULL, seq, fid); |
d7e09d03 PT |
2353 | } |
2354 | ||
f6219c16 | 2355 | static struct obd_uuid *mdc_get_uuid(struct obd_export *exp) |
982ec91f | 2356 | { |
d7e09d03 | 2357 | struct client_obd *cli = &exp->exp_obd->u.cli; |
7436d070 | 2358 | |
d7e09d03 PT |
2359 | return &cli->cl_target_uuid; |
2360 | } | |
2361 | ||
2362 | /** | |
2363 | * Determine whether the lock can be canceled before replaying it during | |
2364 | * recovery, non zero value will be return if the lock can be canceled, | |
2365 | * or zero returned for not | |
2366 | */ | |
2367 | static int mdc_cancel_for_recovery(struct ldlm_lock *lock) | |
2368 | { | |
2369 | if (lock->l_resource->lr_type != LDLM_IBITS) | |
0a3bdb00 | 2370 | return 0; |
d7e09d03 PT |
2371 | |
2372 | /* FIXME: if we ever get into a situation where there are too many | |
2373 | * opened files with open locks on a single node, then we really | |
2374 | * should replay these open locks to reget it */ | |
2375 | if (lock->l_policy_data.l_inodebits.bits & MDS_INODELOCK_OPEN) | |
0a3bdb00 | 2376 | return 0; |
d7e09d03 | 2377 | |
0a3bdb00 | 2378 | return 1; |
d7e09d03 PT |
2379 | } |
2380 | ||
2381 | static int mdc_resource_inode_free(struct ldlm_resource *res) | |
2382 | { | |
2383 | if (res->lr_lvb_inode) | |
2384 | res->lr_lvb_inode = NULL; | |
2385 | ||
2386 | return 0; | |
2387 | } | |
2388 | ||
f6219c16 | 2389 | static struct ldlm_valblock_ops inode_lvbo = { |
805e517a | 2390 | .lvbo_free = mdc_resource_inode_free, |
d7e09d03 PT |
2391 | }; |
2392 | ||
903af118 JH |
2393 | static int mdc_llog_init(struct obd_device *obd) |
2394 | { | |
2395 | struct obd_llog_group *olg = &obd->obd_olg; | |
2396 | struct llog_ctxt *ctxt; | |
2397 | int rc; | |
2398 | ||
2399 | rc = llog_setup(NULL, obd, olg, LLOG_CHANGELOG_REPL_CTXT, obd, | |
2400 | &llog_client_ops); | |
2401 | if (rc) | |
2402 | return rc; | |
2403 | ||
2404 | ctxt = llog_group_get_ctxt(olg, LLOG_CHANGELOG_REPL_CTXT); | |
2405 | llog_initiator_connect(ctxt); | |
2406 | llog_ctxt_put(ctxt); | |
2407 | ||
2408 | return 0; | |
2409 | } | |
2410 | ||
2411 | static void mdc_llog_finish(struct obd_device *obd) | |
2412 | { | |
2413 | struct llog_ctxt *ctxt; | |
2414 | ||
2415 | ctxt = llog_get_context(obd, LLOG_CHANGELOG_REPL_CTXT); | |
2416 | if (ctxt) | |
2417 | llog_cleanup(NULL, ctxt); | |
2418 | } | |
2419 | ||
d7e09d03 PT |
2420 | static int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg) |
2421 | { | |
2422 | struct client_obd *cli = &obd->u.cli; | |
ea7893bb | 2423 | struct lprocfs_static_vars lvars = { NULL }; |
d7e09d03 | 2424 | int rc; |
d7e09d03 | 2425 | |
7b81779d | 2426 | cli->cl_rpc_lock = kzalloc(sizeof(*cli->cl_rpc_lock), GFP_NOFS); |
d7e09d03 | 2427 | if (!cli->cl_rpc_lock) |
0a3bdb00 | 2428 | return -ENOMEM; |
d7e09d03 PT |
2429 | mdc_init_rpc_lock(cli->cl_rpc_lock); |
2430 | ||
2431 | ptlrpcd_addref(); | |
2432 | ||
7b81779d | 2433 | cli->cl_close_lock = kzalloc(sizeof(*cli->cl_close_lock), GFP_NOFS); |
d5fdc207 JL |
2434 | if (!cli->cl_close_lock) { |
2435 | rc = -ENOMEM; | |
2436 | goto err_rpc_lock; | |
2437 | } | |
d7e09d03 PT |
2438 | mdc_init_rpc_lock(cli->cl_close_lock); |
2439 | ||
2440 | rc = client_obd_setup(obd, cfg); | |
2441 | if (rc) | |
d5fdc207 | 2442 | goto err_close_lock; |
d7e09d03 | 2443 | lprocfs_mdc_init_vars(&lvars); |
9b801302 | 2444 | lprocfs_obd_setup(obd, lvars.obd_vars, lvars.sysfs_vars); |
d7e09d03 PT |
2445 | sptlrpc_lprocfs_cliobd_attach(obd); |
2446 | ptlrpc_lprocfs_register_obd(obd); | |
2447 | ||
2448 | ns_register_cancel(obd->obd_namespace, mdc_cancel_for_recovery); | |
2449 | ||
2450 | obd->obd_namespace->ns_lvbo = &inode_lvbo; | |
2451 | ||
903af118 | 2452 | rc = mdc_llog_init(obd); |
d7e09d03 PT |
2453 | if (rc) { |
2454 | mdc_cleanup(obd); | |
2455 | CERROR("failed to setup llogging subsystems\n"); | |
2456 | } | |
2457 | ||
0a3bdb00 | 2458 | return rc; |
d7e09d03 PT |
2459 | |
2460 | err_close_lock: | |
7b81779d | 2461 | kfree(cli->cl_close_lock); |
d7e09d03 | 2462 | err_rpc_lock: |
7b81779d | 2463 | kfree(cli->cl_rpc_lock); |
d7e09d03 | 2464 | ptlrpcd_decref(); |
0a3bdb00 | 2465 | return rc; |
d7e09d03 PT |
2466 | } |
2467 | ||
2468 | /* Initialize the default and maximum LOV EA and cookie sizes. This allows | |
44779340 BB |
2469 | * us to make MDS RPCs with large enough reply buffers to hold a default |
2470 | * sized EA and cookie without having to calculate this (via a call into the | |
2471 | * LOV + OSCs) each time we make an RPC. The maximum size is also tracked | |
2472 | * but not used to avoid wastefully vmalloc()'ing large reply buffers when | |
2473 | * a large number of stripes is possible. If a larger reply buffer is | |
2474 | * required it will be reallocated in the ptlrpc layer due to overflow. | |
2475 | */ | |
d7e09d03 | 2476 | static int mdc_init_ea_size(struct obd_export *exp, int easize, |
44779340 | 2477 | int def_easize, int cookiesize, int def_cookiesize) |
d7e09d03 PT |
2478 | { |
2479 | struct obd_device *obd = exp->exp_obd; | |
2480 | struct client_obd *cli = &obd->u.cli; | |
d7e09d03 PT |
2481 | |
2482 | if (cli->cl_max_mds_easize < easize) | |
2483 | cli->cl_max_mds_easize = easize; | |
2484 | ||
2485 | if (cli->cl_default_mds_easize < def_easize) | |
2486 | cli->cl_default_mds_easize = def_easize; | |
2487 | ||
2488 | if (cli->cl_max_mds_cookiesize < cookiesize) | |
2489 | cli->cl_max_mds_cookiesize = cookiesize; | |
2490 | ||
44779340 BB |
2491 | if (cli->cl_default_mds_cookiesize < def_cookiesize) |
2492 | cli->cl_default_mds_cookiesize = def_cookiesize; | |
2493 | ||
0a3bdb00 | 2494 | return 0; |
d7e09d03 PT |
2495 | } |
2496 | ||
2497 | static int mdc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage) | |
2498 | { | |
d7e09d03 PT |
2499 | switch (stage) { |
2500 | case OBD_CLEANUP_EARLY: | |
2501 | break; | |
2502 | case OBD_CLEANUP_EXPORTS: | |
2503 | /* Failsafe, ok if racy */ | |
2504 | if (obd->obd_type->typ_refcnt <= 1) | |
2505 | libcfs_kkuc_group_rem(0, KUC_GRP_HSM); | |
2506 | ||
2507 | obd_cleanup_client_import(obd); | |
2508 | ptlrpc_lprocfs_unregister_obd(obd); | |
2509 | lprocfs_obd_cleanup(obd); | |
2510 | ||
903af118 | 2511 | mdc_llog_finish(obd); |
d7e09d03 PT |
2512 | break; |
2513 | } | |
eb967126 | 2514 | return 0; |
d7e09d03 PT |
2515 | } |
2516 | ||
2517 | static int mdc_cleanup(struct obd_device *obd) | |
2518 | { | |
2519 | struct client_obd *cli = &obd->u.cli; | |
2520 | ||
7b81779d JL |
2521 | kfree(cli->cl_rpc_lock); |
2522 | kfree(cli->cl_close_lock); | |
d7e09d03 PT |
2523 | |
2524 | ptlrpcd_decref(); | |
2525 | ||
2526 | return client_obd_cleanup(obd); | |
2527 | } | |
2528 | ||
21aef7d9 | 2529 | static int mdc_process_config(struct obd_device *obd, u32 len, void *buf) |
d7e09d03 PT |
2530 | { |
2531 | struct lustre_cfg *lcfg = buf; | |
ea7893bb | 2532 | struct lprocfs_static_vars lvars = { NULL }; |
d7e09d03 PT |
2533 | int rc = 0; |
2534 | ||
2535 | lprocfs_mdc_init_vars(&lvars); | |
2536 | switch (lcfg->lcfg_command) { | |
2537 | default: | |
2538 | rc = class_process_proc_param(PARAM_MDC, lvars.obd_vars, | |
2539 | lcfg, obd); | |
2540 | if (rc > 0) | |
2541 | rc = 0; | |
2542 | break; | |
2543 | } | |
eb44520b | 2544 | return rc; |
d7e09d03 PT |
2545 | } |
2546 | ||
2547 | ||
2548 | /* get remote permission for current user on fid */ | |
f6219c16 LC |
2549 | static int mdc_get_remote_perm(struct obd_export *exp, const struct lu_fid *fid, |
2550 | struct obd_capa *oc, __u32 suppgid, | |
2551 | struct ptlrpc_request **request) | |
d7e09d03 PT |
2552 | { |
2553 | struct ptlrpc_request *req; | |
2554 | int rc; | |
d7e09d03 PT |
2555 | |
2556 | LASSERT(client_is_remote(exp)); | |
2557 | ||
2558 | *request = NULL; | |
2559 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_GETATTR); | |
2560 | if (req == NULL) | |
0a3bdb00 | 2561 | return -ENOMEM; |
d7e09d03 PT |
2562 | |
2563 | mdc_set_capa_size(req, &RMF_CAPA1, oc); | |
2564 | ||
2565 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR); | |
2566 | if (rc) { | |
2567 | ptlrpc_request_free(req); | |
0a3bdb00 | 2568 | return rc; |
d7e09d03 PT |
2569 | } |
2570 | ||
2571 | mdc_pack_body(req, fid, oc, OBD_MD_FLRMTPERM, 0, suppgid, 0); | |
2572 | ||
2573 | req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER, | |
2574 | sizeof(struct mdt_remote_perm)); | |
2575 | ||
2576 | ptlrpc_request_set_replen(req); | |
2577 | ||
2578 | rc = ptlrpc_queue_wait(req); | |
2579 | if (rc) | |
2580 | ptlrpc_req_finished(req); | |
2581 | else | |
2582 | *request = req; | |
0a3bdb00 | 2583 | return rc; |
d7e09d03 PT |
2584 | } |
2585 | ||
2586 | static int mdc_interpret_renew_capa(const struct lu_env *env, | |
2587 | struct ptlrpc_request *req, void *args, | |
2588 | int status) | |
2589 | { | |
2590 | struct mdc_renew_capa_args *ra = args; | |
2591 | struct mdt_body *body = NULL; | |
2592 | struct lustre_capa *capa; | |
d7e09d03 | 2593 | |
d5fdc207 JL |
2594 | if (status) { |
2595 | capa = ERR_PTR(status); | |
2596 | goto out; | |
2597 | } | |
d7e09d03 PT |
2598 | |
2599 | body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); | |
d5fdc207 JL |
2600 | if (body == NULL) { |
2601 | capa = ERR_PTR(-EFAULT); | |
2602 | goto out; | |
2603 | } | |
d7e09d03 | 2604 | |
d5fdc207 JL |
2605 | if ((body->valid & OBD_MD_FLOSSCAPA) == 0) { |
2606 | capa = ERR_PTR(-ENOENT); | |
2607 | goto out; | |
2608 | } | |
d7e09d03 PT |
2609 | |
2610 | capa = req_capsule_server_get(&req->rq_pill, &RMF_CAPA2); | |
d5fdc207 JL |
2611 | if (!capa) { |
2612 | capa = ERR_PTR(-EFAULT); | |
2613 | goto out; | |
2614 | } | |
d7e09d03 PT |
2615 | out: |
2616 | ra->ra_cb(ra->ra_oc, capa); | |
2617 | return 0; | |
2618 | } | |
2619 | ||
2620 | static int mdc_renew_capa(struct obd_export *exp, struct obd_capa *oc, | |
2621 | renew_capa_cb_t cb) | |
2622 | { | |
2623 | struct ptlrpc_request *req; | |
2624 | struct mdc_renew_capa_args *ra; | |
d7e09d03 PT |
2625 | |
2626 | req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_MDS_GETATTR, | |
2627 | LUSTRE_MDS_VERSION, MDS_GETATTR); | |
2628 | if (req == NULL) | |
0a3bdb00 | 2629 | return -ENOMEM; |
d7e09d03 PT |
2630 | |
2631 | /* NB, OBD_MD_FLOSSCAPA is set here, but it doesn't necessarily mean the | |
2632 | * capa to renew is oss capa. | |
2633 | */ | |
2634 | mdc_pack_body(req, &oc->c_capa.lc_fid, oc, OBD_MD_FLOSSCAPA, 0, -1, 0); | |
2635 | ptlrpc_request_set_replen(req); | |
2636 | ||
2637 | CLASSERT(sizeof(*ra) <= sizeof(req->rq_async_args)); | |
2638 | ra = ptlrpc_req_async_args(req); | |
2639 | ra->ra_oc = oc; | |
2640 | ra->ra_cb = cb; | |
2641 | req->rq_interpret_reply = mdc_interpret_renew_capa; | |
2642 | ptlrpcd_add_req(req, PDL_POLICY_LOCAL, -1); | |
0a3bdb00 | 2643 | return 0; |
d7e09d03 PT |
2644 | } |
2645 | ||
f6219c16 | 2646 | static struct obd_ops mdc_obd_ops = { |
d7e09d03 PT |
2647 | .o_owner = THIS_MODULE, |
2648 | .o_setup = mdc_setup, | |
2649 | .o_precleanup = mdc_precleanup, | |
2650 | .o_cleanup = mdc_cleanup, | |
2651 | .o_add_conn = client_import_add_conn, | |
2652 | .o_del_conn = client_import_del_conn, | |
a7c6d5a6 | 2653 | .o_connect = client_connect_import, |
d7e09d03 PT |
2654 | .o_disconnect = client_disconnect_export, |
2655 | .o_iocontrol = mdc_iocontrol, | |
2656 | .o_set_info_async = mdc_set_info_async, | |
2657 | .o_statfs = mdc_statfs, | |
d7e09d03 PT |
2658 | .o_fid_init = client_fid_init, |
2659 | .o_fid_fini = client_fid_fini, | |
2660 | .o_fid_alloc = mdc_fid_alloc, | |
2661 | .o_import_event = mdc_import_event, | |
d7e09d03 PT |
2662 | .o_get_info = mdc_get_info, |
2663 | .o_process_config = mdc_process_config, | |
2664 | .o_get_uuid = mdc_get_uuid, | |
2665 | .o_quotactl = mdc_quotactl, | |
2666 | .o_quotacheck = mdc_quotacheck | |
2667 | }; | |
2668 | ||
f6219c16 | 2669 | static struct md_ops mdc_md_ops = { |
d7e09d03 PT |
2670 | .m_getstatus = mdc_getstatus, |
2671 | .m_null_inode = mdc_null_inode, | |
2672 | .m_find_cbdata = mdc_find_cbdata, | |
2673 | .m_close = mdc_close, | |
2674 | .m_create = mdc_create, | |
2675 | .m_done_writing = mdc_done_writing, | |
2676 | .m_enqueue = mdc_enqueue, | |
2677 | .m_getattr = mdc_getattr, | |
2678 | .m_getattr_name = mdc_getattr_name, | |
2679 | .m_intent_lock = mdc_intent_lock, | |
2680 | .m_link = mdc_link, | |
2681 | .m_is_subdir = mdc_is_subdir, | |
2682 | .m_rename = mdc_rename, | |
2683 | .m_setattr = mdc_setattr, | |
2684 | .m_setxattr = mdc_setxattr, | |
2685 | .m_getxattr = mdc_getxattr, | |
2686 | .m_sync = mdc_sync, | |
2687 | .m_readpage = mdc_readpage, | |
2688 | .m_unlink = mdc_unlink, | |
2689 | .m_cancel_unused = mdc_cancel_unused, | |
2690 | .m_init_ea_size = mdc_init_ea_size, | |
2691 | .m_set_lock_data = mdc_set_lock_data, | |
2692 | .m_lock_match = mdc_lock_match, | |
2693 | .m_get_lustre_md = mdc_get_lustre_md, | |
2694 | .m_free_lustre_md = mdc_free_lustre_md, | |
2695 | .m_set_open_replay_data = mdc_set_open_replay_data, | |
2696 | .m_clear_open_replay_data = mdc_clear_open_replay_data, | |
2697 | .m_renew_capa = mdc_renew_capa, | |
2698 | .m_unpack_capa = mdc_unpack_capa, | |
2699 | .m_get_remote_perm = mdc_get_remote_perm, | |
2700 | .m_intent_getattr_async = mdc_intent_getattr_async, | |
2701 | .m_revalidate_lock = mdc_revalidate_lock | |
2702 | }; | |
2703 | ||
f6219c16 | 2704 | static int __init mdc_init(void) |
d7e09d03 | 2705 | { |
ea7893bb | 2706 | struct lprocfs_static_vars lvars = { NULL }; |
7436d070 | 2707 | |
d7e09d03 PT |
2708 | lprocfs_mdc_init_vars(&lvars); |
2709 | ||
2962b440 | 2710 | return class_register_type(&mdc_obd_ops, &mdc_md_ops, |
d7e09d03 | 2711 | LUSTRE_MDC_NAME, NULL); |
d7e09d03 PT |
2712 | } |
2713 | ||
2714 | static void /*__exit*/ mdc_exit(void) | |
2715 | { | |
2716 | class_unregister_type(LUSTRE_MDC_NAME); | |
2717 | } | |
2718 | ||
2719 | MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>"); | |
2720 | MODULE_DESCRIPTION("Lustre Metadata Client"); | |
2721 | MODULE_LICENSE("GPL"); | |
2722 | ||
2723 | module_init(mdc_init); | |
2724 | module_exit(mdc_exit); |