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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) 2003, 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 | * lustre/llite/llite_lib.c | |
37 | * | |
38 | * Lustre Light Super operations | |
39 | */ | |
40 | ||
41 | #define DEBUG_SUBSYSTEM S_LLITE | |
42 | ||
43 | #include <linux/module.h> | |
a9c7db39 | 44 | #include <linux/statfs.h> |
d7e09d03 | 45 | #include <linux/types.h> |
d7e09d03 PT |
46 | #include <linux/mm.h> |
47 | ||
67a235f5 GKH |
48 | #include "../include/lustre_lite.h" |
49 | #include "../include/lustre_ha.h" | |
50 | #include "../include/lustre_dlm.h" | |
51 | #include "../include/lprocfs_status.h" | |
52 | #include "../include/lustre_disk.h" | |
53 | #include "../include/lustre_param.h" | |
54 | #include "../include/lustre_log.h" | |
55 | #include "../include/cl_object.h" | |
56 | #include "../include/obd_cksum.h" | |
d7e09d03 PT |
57 | #include "llite_internal.h" |
58 | ||
59 | struct kmem_cache *ll_file_data_slab; | |
2c185ffa | 60 | struct proc_dir_entry *proc_lustre_fs_root; |
d7e09d03 | 61 | |
2d95f10e JH |
62 | static LIST_HEAD(ll_super_blocks); |
63 | static DEFINE_SPINLOCK(ll_sb_lock); | |
d7e09d03 PT |
64 | |
65 | #ifndef log2 | |
66 | #define log2(n) ffz(~(n)) | |
67 | #endif | |
68 | ||
69 | static struct ll_sb_info *ll_init_sbi(void) | |
70 | { | |
71 | struct ll_sb_info *sbi = NULL; | |
72 | unsigned long pages; | |
73 | unsigned long lru_page_max; | |
74 | struct sysinfo si; | |
75 | class_uuid_t uuid; | |
76 | int i; | |
d7e09d03 | 77 | |
496a51bd | 78 | sbi = kzalloc(sizeof(*sbi), GFP_NOFS); |
d7e09d03 | 79 | if (!sbi) |
0a3bdb00 | 80 | return NULL; |
d7e09d03 PT |
81 | |
82 | spin_lock_init(&sbi->ll_lock); | |
83 | mutex_init(&sbi->ll_lco.lco_lock); | |
84 | spin_lock_init(&sbi->ll_pp_extent_lock); | |
85 | spin_lock_init(&sbi->ll_process_lock); | |
86 | sbi->ll_rw_stats_on = 0; | |
87 | ||
88 | si_meminfo(&si); | |
89 | pages = si.totalram - si.totalhigh; | |
99d08456 | 90 | if (pages >> (20 - PAGE_CACHE_SHIFT) < 512) |
d7e09d03 | 91 | lru_page_max = pages / 2; |
99d08456 | 92 | else |
d7e09d03 | 93 | lru_page_max = (pages / 4) * 3; |
d7e09d03 | 94 | |
c52f69c5 | 95 | /* initialize lru data */ |
d7e09d03 PT |
96 | atomic_set(&sbi->ll_cache.ccc_users, 0); |
97 | sbi->ll_cache.ccc_lru_max = lru_page_max; | |
98 | atomic_set(&sbi->ll_cache.ccc_lru_left, lru_page_max); | |
99 | spin_lock_init(&sbi->ll_cache.ccc_lru_lock); | |
100 | INIT_LIST_HEAD(&sbi->ll_cache.ccc_lru); | |
101 | ||
d7e09d03 PT |
102 | sbi->ll_ra_info.ra_max_pages_per_file = min(pages / 32, |
103 | SBI_DEFAULT_READAHEAD_MAX); | |
104 | sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file; | |
105 | sbi->ll_ra_info.ra_max_read_ahead_whole_pages = | |
106 | SBI_DEFAULT_READAHEAD_WHOLE_MAX; | |
107 | INIT_LIST_HEAD(&sbi->ll_conn_chain); | |
108 | INIT_LIST_HEAD(&sbi->ll_orphan_dentry_list); | |
109 | ||
110 | ll_generate_random_uuid(uuid); | |
111 | class_uuid_unparse(uuid, &sbi->ll_sb_uuid); | |
112 | CDEBUG(D_CONFIG, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid); | |
113 | ||
114 | spin_lock(&ll_sb_lock); | |
115 | list_add_tail(&sbi->ll_list, &ll_super_blocks); | |
116 | spin_unlock(&ll_sb_lock); | |
117 | ||
118 | sbi->ll_flags |= LL_SBI_VERBOSE; | |
119 | sbi->ll_flags |= LL_SBI_CHECKSUM; | |
120 | ||
121 | sbi->ll_flags |= LL_SBI_LRU_RESIZE; | |
122 | ||
123 | for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) { | |
124 | spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i]. | |
125 | pp_r_hist.oh_lock); | |
126 | spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i]. | |
127 | pp_w_hist.oh_lock); | |
128 | } | |
129 | ||
130 | /* metadata statahead is enabled by default */ | |
131 | sbi->ll_sa_max = LL_SA_RPC_DEF; | |
132 | atomic_set(&sbi->ll_sa_total, 0); | |
133 | atomic_set(&sbi->ll_sa_wrong, 0); | |
134 | atomic_set(&sbi->ll_agl_total, 0); | |
135 | sbi->ll_flags |= LL_SBI_AGL_ENABLED; | |
136 | ||
0a3bdb00 | 137 | return sbi; |
d7e09d03 PT |
138 | } |
139 | ||
2d95f10e | 140 | static void ll_free_sbi(struct super_block *sb) |
d7e09d03 PT |
141 | { |
142 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
d7e09d03 PT |
143 | |
144 | if (sbi != NULL) { | |
145 | spin_lock(&ll_sb_lock); | |
146 | list_del(&sbi->ll_list); | |
147 | spin_unlock(&ll_sb_lock); | |
148 | OBD_FREE(sbi, sizeof(*sbi)); | |
149 | } | |
d7e09d03 PT |
150 | } |
151 | ||
d7e09d03 PT |
152 | static int client_common_fill_super(struct super_block *sb, char *md, char *dt, |
153 | struct vfsmount *mnt) | |
154 | { | |
ea7893bb | 155 | struct inode *root = NULL; |
d7e09d03 PT |
156 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
157 | struct obd_device *obd; | |
158 | struct obd_capa *oc = NULL; | |
159 | struct obd_statfs *osfs = NULL; | |
160 | struct ptlrpc_request *request = NULL; | |
161 | struct obd_connect_data *data = NULL; | |
162 | struct obd_uuid *uuid; | |
163 | struct md_op_data *op_data; | |
164 | struct lustre_md lmd; | |
21aef7d9 | 165 | u64 valid; |
d7e09d03 | 166 | int size, err, checksum; |
d7e09d03 PT |
167 | |
168 | obd = class_name2obd(md); | |
169 | if (!obd) { | |
170 | CERROR("MD %s: not setup or attached\n", md); | |
0a3bdb00 | 171 | return -EINVAL; |
d7e09d03 PT |
172 | } |
173 | ||
496a51bd JL |
174 | data = kzalloc(sizeof(*data), GFP_NOFS); |
175 | if (!data) | |
0a3bdb00 | 176 | return -ENOMEM; |
d7e09d03 | 177 | |
496a51bd JL |
178 | osfs = kzalloc(sizeof(*osfs), GFP_NOFS); |
179 | if (!osfs) { | |
d7e09d03 | 180 | OBD_FREE_PTR(data); |
0a3bdb00 | 181 | return -ENOMEM; |
d7e09d03 PT |
182 | } |
183 | ||
184 | if (proc_lustre_fs_root) { | |
185 | err = lprocfs_register_mountpoint(proc_lustre_fs_root, sb, | |
186 | dt, md); | |
187 | if (err < 0) | |
188 | CERROR("could not register mount in /proc/fs/lustre\n"); | |
189 | } | |
190 | ||
191 | /* indicate the features supported by this client */ | |
192 | data->ocd_connect_flags = OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH | | |
193 | OBD_CONNECT_ATTRFID | | |
194 | OBD_CONNECT_VERSION | OBD_CONNECT_BRW_SIZE | | |
195 | OBD_CONNECT_MDS_CAPA | OBD_CONNECT_OSS_CAPA | | |
196 | OBD_CONNECT_CANCELSET | OBD_CONNECT_FID | | |
197 | OBD_CONNECT_AT | OBD_CONNECT_LOV_V3 | | |
198 | OBD_CONNECT_RMT_CLIENT | OBD_CONNECT_VBR | | |
199 | OBD_CONNECT_FULL20 | OBD_CONNECT_64BITHASH| | |
200 | OBD_CONNECT_EINPROGRESS | | |
201 | OBD_CONNECT_JOBSTATS | OBD_CONNECT_LVB_TYPE | | |
7fc1f831 | 202 | OBD_CONNECT_LAYOUTLOCK | |
69342b78 AS |
203 | OBD_CONNECT_PINGLESS | |
204 | OBD_CONNECT_MAX_EASIZE | | |
63d42578 HZ |
205 | OBD_CONNECT_FLOCK_DEAD | |
206 | OBD_CONNECT_DISP_STRIPE; | |
d7e09d03 PT |
207 | |
208 | if (sbi->ll_flags & LL_SBI_SOM_PREVIEW) | |
209 | data->ocd_connect_flags |= OBD_CONNECT_SOM; | |
210 | ||
211 | if (sbi->ll_flags & LL_SBI_LRU_RESIZE) | |
212 | data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE; | |
213 | #ifdef CONFIG_FS_POSIX_ACL | |
214 | data->ocd_connect_flags |= OBD_CONNECT_ACL | OBD_CONNECT_UMASK; | |
215 | #endif | |
216 | ||
217 | if (OBD_FAIL_CHECK(OBD_FAIL_MDC_LIGHTWEIGHT)) | |
218 | /* flag mdc connection as lightweight, only used for test | |
219 | * purpose, use with care */ | |
220 | data->ocd_connect_flags |= OBD_CONNECT_LIGHTWEIGHT; | |
221 | ||
222 | data->ocd_ibits_known = MDS_INODELOCK_FULL; | |
223 | data->ocd_version = LUSTRE_VERSION_CODE; | |
224 | ||
225 | if (sb->s_flags & MS_RDONLY) | |
226 | data->ocd_connect_flags |= OBD_CONNECT_RDONLY; | |
227 | if (sbi->ll_flags & LL_SBI_USER_XATTR) | |
228 | data->ocd_connect_flags |= OBD_CONNECT_XATTR; | |
229 | ||
230 | #ifdef HAVE_MS_FLOCK_LOCK | |
231 | /* force vfs to use lustre handler for flock() calls - bug 10743 */ | |
232 | sb->s_flags |= MS_FLOCK_LOCK; | |
233 | #endif | |
234 | #ifdef MS_HAS_NEW_AOPS | |
235 | sb->s_flags |= MS_HAS_NEW_AOPS; | |
236 | #endif | |
237 | ||
238 | if (sbi->ll_flags & LL_SBI_FLOCK) | |
239 | sbi->ll_fop = &ll_file_operations_flock; | |
240 | else if (sbi->ll_flags & LL_SBI_LOCALFLOCK) | |
241 | sbi->ll_fop = &ll_file_operations; | |
242 | else | |
243 | sbi->ll_fop = &ll_file_operations_noflock; | |
244 | ||
245 | /* real client */ | |
246 | data->ocd_connect_flags |= OBD_CONNECT_REAL; | |
247 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) | |
248 | data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE; | |
249 | ||
250 | data->ocd_brw_size = MD_MAX_BRW_SIZE; | |
251 | ||
e6768831 TJ |
252 | err = obd_connect(NULL, &sbi->ll_md_exp, obd, &sbi->ll_sb_uuid, |
253 | data, NULL); | |
d7e09d03 | 254 | if (err == -EBUSY) { |
2d00bd17 JP |
255 | LCONSOLE_ERROR_MSG(0x14f, "An MDT (md %s) is performing recovery, of which this client is not a part. Please wait for recovery to complete, abort, or time out.\n", |
256 | md); | |
34e1f2bb | 257 | goto out; |
d7e09d03 PT |
258 | } else if (err) { |
259 | CERROR("cannot connect to %s: rc = %d\n", md, err); | |
34e1f2bb | 260 | goto out; |
d7e09d03 PT |
261 | } |
262 | ||
263 | sbi->ll_md_exp->exp_connect_data = *data; | |
264 | ||
265 | err = obd_fid_init(sbi->ll_md_exp->exp_obd, sbi->ll_md_exp, | |
266 | LUSTRE_SEQ_METADATA); | |
267 | if (err) { | |
2d00bd17 JP |
268 | CERROR("%s: Can't init metadata layer FID infrastructure, rc = %d\n", |
269 | sbi->ll_md_exp->exp_obd->obd_name, err); | |
34e1f2bb | 270 | goto out_md; |
d7e09d03 PT |
271 | } |
272 | ||
273 | /* For mount, we only need fs info from MDT0, and also in DNE, it | |
274 | * can make sure the client can be mounted as long as MDT0 is | |
d0a0acc3 | 275 | * available */ |
d7e09d03 PT |
276 | err = obd_statfs(NULL, sbi->ll_md_exp, osfs, |
277 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), | |
278 | OBD_STATFS_FOR_MDT0); | |
279 | if (err) | |
34e1f2bb | 280 | goto out_md_fid; |
d7e09d03 PT |
281 | |
282 | /* This needs to be after statfs to ensure connect has finished. | |
283 | * Note that "data" does NOT contain the valid connect reply. | |
284 | * If connecting to a 1.8 server there will be no LMV device, so | |
285 | * we can access the MDC export directly and exp_connect_flags will | |
286 | * be non-zero, but if accessing an upgraded 2.1 server it will | |
287 | * have the correct flags filled in. | |
288 | * XXX: fill in the LMV exp_connect_flags from MDC(s). */ | |
289 | valid = exp_connect_flags(sbi->ll_md_exp) & CLIENT_CONNECT_MDT_REQD; | |
290 | if (exp_connect_flags(sbi->ll_md_exp) != 0 && | |
291 | valid != CLIENT_CONNECT_MDT_REQD) { | |
292 | char *buf; | |
293 | ||
496a51bd | 294 | buf = kzalloc(PAGE_CACHE_SIZE, GFP_KERNEL); |
d7e09d03 PT |
295 | obd_connect_flags2str(buf, PAGE_CACHE_SIZE, |
296 | valid ^ CLIENT_CONNECT_MDT_REQD, ","); | |
2d00bd17 | 297 | LCONSOLE_ERROR_MSG(0x170, "Server %s does not support feature(s) needed for correct operation of this client (%s). Please upgrade server or downgrade client.\n", |
d7e09d03 PT |
298 | sbi->ll_md_exp->exp_obd->obd_name, buf); |
299 | OBD_FREE(buf, PAGE_CACHE_SIZE); | |
34e1f2bb JL |
300 | err = -EPROTO; |
301 | goto out_md_fid; | |
d7e09d03 PT |
302 | } |
303 | ||
304 | size = sizeof(*data); | |
305 | err = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_CONN_DATA), | |
306 | KEY_CONN_DATA, &size, data, NULL); | |
307 | if (err) { | |
308 | CERROR("%s: Get connect data failed: rc = %d\n", | |
309 | sbi->ll_md_exp->exp_obd->obd_name, err); | |
34e1f2bb | 310 | goto out_md_fid; |
d7e09d03 PT |
311 | } |
312 | ||
313 | LASSERT(osfs->os_bsize); | |
314 | sb->s_blocksize = osfs->os_bsize; | |
315 | sb->s_blocksize_bits = log2(osfs->os_bsize); | |
316 | sb->s_magic = LL_SUPER_MAGIC; | |
317 | sb->s_maxbytes = MAX_LFS_FILESIZE; | |
318 | sbi->ll_namelen = osfs->os_namelen; | |
319 | sbi->ll_max_rw_chunk = LL_DEFAULT_MAX_RW_CHUNK; | |
320 | ||
321 | if ((sbi->ll_flags & LL_SBI_USER_XATTR) && | |
322 | !(data->ocd_connect_flags & OBD_CONNECT_XATTR)) { | |
2d00bd17 | 323 | LCONSOLE_INFO("Disabling user_xattr feature because it is not supported on the server\n"); |
d7e09d03 PT |
324 | sbi->ll_flags &= ~LL_SBI_USER_XATTR; |
325 | } | |
326 | ||
327 | if (data->ocd_connect_flags & OBD_CONNECT_ACL) { | |
328 | #ifdef MS_POSIXACL | |
329 | sb->s_flags |= MS_POSIXACL; | |
330 | #endif | |
331 | sbi->ll_flags |= LL_SBI_ACL; | |
332 | } else { | |
333 | LCONSOLE_INFO("client wants to enable acl, but mdt not!\n"); | |
334 | #ifdef MS_POSIXACL | |
335 | sb->s_flags &= ~MS_POSIXACL; | |
336 | #endif | |
337 | sbi->ll_flags &= ~LL_SBI_ACL; | |
338 | } | |
339 | ||
340 | if (data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) { | |
341 | if (!(sbi->ll_flags & LL_SBI_RMT_CLIENT)) { | |
342 | sbi->ll_flags |= LL_SBI_RMT_CLIENT; | |
343 | LCONSOLE_INFO("client is set as remote by default.\n"); | |
344 | } | |
345 | } else { | |
346 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { | |
347 | sbi->ll_flags &= ~LL_SBI_RMT_CLIENT; | |
2d00bd17 | 348 | LCONSOLE_INFO("client claims to be remote, but server rejected, forced to be local.\n"); |
d7e09d03 PT |
349 | } |
350 | } | |
351 | ||
352 | if (data->ocd_connect_flags & OBD_CONNECT_MDS_CAPA) { | |
353 | LCONSOLE_INFO("client enabled MDS capability!\n"); | |
354 | sbi->ll_flags |= LL_SBI_MDS_CAPA; | |
355 | } | |
356 | ||
357 | if (data->ocd_connect_flags & OBD_CONNECT_OSS_CAPA) { | |
358 | LCONSOLE_INFO("client enabled OSS capability!\n"); | |
359 | sbi->ll_flags |= LL_SBI_OSS_CAPA; | |
360 | } | |
361 | ||
362 | if (data->ocd_connect_flags & OBD_CONNECT_64BITHASH) | |
363 | sbi->ll_flags |= LL_SBI_64BIT_HASH; | |
364 | ||
365 | if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE) | |
366 | sbi->ll_md_brw_size = data->ocd_brw_size; | |
367 | else | |
368 | sbi->ll_md_brw_size = PAGE_CACHE_SIZE; | |
369 | ||
370 | if (data->ocd_connect_flags & OBD_CONNECT_LAYOUTLOCK) { | |
371 | LCONSOLE_INFO("Layout lock feature supported.\n"); | |
372 | sbi->ll_flags |= LL_SBI_LAYOUT_LOCK; | |
373 | } | |
374 | ||
7fc1f831 AP |
375 | if (data->ocd_ibits_known & MDS_INODELOCK_XATTR) { |
376 | if (!(data->ocd_connect_flags & OBD_CONNECT_MAX_EASIZE)) { | |
377 | LCONSOLE_INFO( | |
378 | "%s: disabling xattr cache due to unknown maximum xattr size.\n", | |
379 | dt); | |
380 | } else { | |
381 | sbi->ll_flags |= LL_SBI_XATTR_CACHE; | |
382 | sbi->ll_xattr_cache_enabled = 1; | |
383 | } | |
384 | } | |
385 | ||
d7e09d03 PT |
386 | obd = class_name2obd(dt); |
387 | if (!obd) { | |
388 | CERROR("DT %s: not setup or attached\n", dt); | |
34e1f2bb JL |
389 | err = -ENODEV; |
390 | goto out_md_fid; | |
d7e09d03 PT |
391 | } |
392 | ||
393 | data->ocd_connect_flags = OBD_CONNECT_GRANT | OBD_CONNECT_VERSION | | |
394 | OBD_CONNECT_REQPORTAL | OBD_CONNECT_BRW_SIZE | | |
395 | OBD_CONNECT_CANCELSET | OBD_CONNECT_FID | | |
396 | OBD_CONNECT_SRVLOCK | OBD_CONNECT_TRUNCLOCK| | |
397 | OBD_CONNECT_AT | OBD_CONNECT_RMT_CLIENT | | |
398 | OBD_CONNECT_OSS_CAPA | OBD_CONNECT_VBR| | |
399 | OBD_CONNECT_FULL20 | OBD_CONNECT_64BITHASH | | |
400 | OBD_CONNECT_MAXBYTES | | |
401 | OBD_CONNECT_EINPROGRESS | | |
402 | OBD_CONNECT_JOBSTATS | OBD_CONNECT_LVB_TYPE | | |
403 | OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_PINGLESS; | |
404 | ||
405 | if (sbi->ll_flags & LL_SBI_SOM_PREVIEW) | |
406 | data->ocd_connect_flags |= OBD_CONNECT_SOM; | |
407 | ||
408 | if (!OBD_FAIL_CHECK(OBD_FAIL_OSC_CONNECT_CKSUM)) { | |
409 | /* OBD_CONNECT_CKSUM should always be set, even if checksums are | |
410 | * disabled by default, because it can still be enabled on the | |
411 | * fly via /proc. As a consequence, we still need to come to an | |
412 | * agreement on the supported algorithms at connect time */ | |
413 | data->ocd_connect_flags |= OBD_CONNECT_CKSUM; | |
414 | ||
415 | if (OBD_FAIL_CHECK(OBD_FAIL_OSC_CKSUM_ADLER_ONLY)) | |
416 | data->ocd_cksum_types = OBD_CKSUM_ADLER; | |
417 | else | |
418 | data->ocd_cksum_types = cksum_types_supported_client(); | |
419 | } | |
420 | ||
421 | data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE; | |
422 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) | |
423 | data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE; | |
424 | ||
2d00bd17 JP |
425 | CDEBUG(D_RPCTRACE, "ocd_connect_flags: %#llx ocd_version: %d ocd_grant: %d\n", |
426 | data->ocd_connect_flags, | |
d7e09d03 PT |
427 | data->ocd_version, data->ocd_grant); |
428 | ||
429 | obd->obd_upcall.onu_owner = &sbi->ll_lco; | |
430 | obd->obd_upcall.onu_upcall = cl_ocd_update; | |
431 | ||
432 | data->ocd_brw_size = DT_MAX_BRW_SIZE; | |
433 | ||
434 | err = obd_connect(NULL, &sbi->ll_dt_exp, obd, &sbi->ll_sb_uuid, data, | |
435 | NULL); | |
436 | if (err == -EBUSY) { | |
2d00bd17 JP |
437 | LCONSOLE_ERROR_MSG(0x150, "An OST (dt %s) is performing recovery, of which this client is not a part. Please wait for recovery to complete, abort, or time out.\n", |
438 | dt); | |
34e1f2bb | 439 | goto out_md; |
d7e09d03 PT |
440 | } else if (err) { |
441 | CERROR("%s: Cannot connect to %s: rc = %d\n", | |
442 | sbi->ll_dt_exp->exp_obd->obd_name, dt, err); | |
34e1f2bb | 443 | goto out_md; |
d7e09d03 PT |
444 | } |
445 | ||
446 | sbi->ll_dt_exp->exp_connect_data = *data; | |
447 | ||
448 | err = obd_fid_init(sbi->ll_dt_exp->exp_obd, sbi->ll_dt_exp, | |
449 | LUSTRE_SEQ_METADATA); | |
450 | if (err) { | |
2d00bd17 JP |
451 | CERROR("%s: Can't init data layer FID infrastructure, rc = %d\n", |
452 | sbi->ll_dt_exp->exp_obd->obd_name, err); | |
34e1f2bb | 453 | goto out_dt; |
d7e09d03 PT |
454 | } |
455 | ||
456 | mutex_lock(&sbi->ll_lco.lco_lock); | |
457 | sbi->ll_lco.lco_flags = data->ocd_connect_flags; | |
458 | sbi->ll_lco.lco_md_exp = sbi->ll_md_exp; | |
459 | sbi->ll_lco.lco_dt_exp = sbi->ll_dt_exp; | |
460 | mutex_unlock(&sbi->ll_lco.lco_lock); | |
461 | ||
462 | fid_zero(&sbi->ll_root_fid); | |
463 | err = md_getstatus(sbi->ll_md_exp, &sbi->ll_root_fid, &oc); | |
464 | if (err) { | |
465 | CERROR("cannot mds_connect: rc = %d\n", err); | |
34e1f2bb | 466 | goto out_lock_cn_cb; |
d7e09d03 PT |
467 | } |
468 | if (!fid_is_sane(&sbi->ll_root_fid)) { | |
469 | CERROR("%s: Invalid root fid "DFID" during mount\n", | |
470 | sbi->ll_md_exp->exp_obd->obd_name, | |
471 | PFID(&sbi->ll_root_fid)); | |
34e1f2bb JL |
472 | err = -EINVAL; |
473 | goto out_lock_cn_cb; | |
d7e09d03 PT |
474 | } |
475 | CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&sbi->ll_root_fid)); | |
476 | ||
477 | sb->s_op = &lustre_super_operations; | |
478 | #if THREAD_SIZE >= 8192 /*b=17630*/ | |
479 | sb->s_export_op = &lustre_export_operations; | |
480 | #endif | |
481 | ||
482 | /* make root inode | |
483 | * XXX: move this to after cbd setup? */ | |
484 | valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS | OBD_MD_FLMDSCAPA; | |
485 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) | |
486 | valid |= OBD_MD_FLRMTPERM; | |
487 | else if (sbi->ll_flags & LL_SBI_ACL) | |
488 | valid |= OBD_MD_FLACL; | |
489 | ||
496a51bd JL |
490 | op_data = kzalloc(sizeof(*op_data), GFP_NOFS); |
491 | if (!op_data) { | |
34e1f2bb JL |
492 | err = -ENOMEM; |
493 | goto out_lock_cn_cb; | |
494 | } | |
d7e09d03 PT |
495 | |
496 | op_data->op_fid1 = sbi->ll_root_fid; | |
497 | op_data->op_mode = 0; | |
498 | op_data->op_capa1 = oc; | |
499 | op_data->op_valid = valid; | |
500 | ||
501 | err = md_getattr(sbi->ll_md_exp, op_data, &request); | |
502 | if (oc) | |
503 | capa_put(oc); | |
504 | OBD_FREE_PTR(op_data); | |
505 | if (err) { | |
506 | CERROR("%s: md_getattr failed for root: rc = %d\n", | |
507 | sbi->ll_md_exp->exp_obd->obd_name, err); | |
34e1f2bb | 508 | goto out_lock_cn_cb; |
d7e09d03 PT |
509 | } |
510 | ||
511 | err = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp, | |
512 | sbi->ll_md_exp, &lmd); | |
513 | if (err) { | |
514 | CERROR("failed to understand root inode md: rc = %d\n", err); | |
515 | ptlrpc_req_finished(request); | |
34e1f2bb | 516 | goto out_lock_cn_cb; |
d7e09d03 PT |
517 | } |
518 | ||
519 | LASSERT(fid_is_sane(&sbi->ll_root_fid)); | |
520 | root = ll_iget(sb, cl_fid_build_ino(&sbi->ll_root_fid, | |
c1e2699d | 521 | sbi->ll_flags & LL_SBI_32BIT_API), |
d7e09d03 PT |
522 | &lmd); |
523 | md_free_lustre_md(sbi->ll_md_exp, &lmd); | |
524 | ptlrpc_req_finished(request); | |
525 | ||
526 | if (root == NULL || IS_ERR(root)) { | |
527 | if (lmd.lsm) | |
528 | obd_free_memmd(sbi->ll_dt_exp, &lmd.lsm); | |
529 | #ifdef CONFIG_FS_POSIX_ACL | |
530 | if (lmd.posix_acl) { | |
531 | posix_acl_release(lmd.posix_acl); | |
532 | lmd.posix_acl = NULL; | |
533 | } | |
534 | #endif | |
535 | err = IS_ERR(root) ? PTR_ERR(root) : -EBADF; | |
536 | root = NULL; | |
537 | CERROR("lustre_lite: bad iget4 for root\n"); | |
34e1f2bb | 538 | goto out_root; |
d7e09d03 PT |
539 | } |
540 | ||
541 | err = ll_close_thread_start(&sbi->ll_lcq); | |
542 | if (err) { | |
543 | CERROR("cannot start close thread: rc %d\n", err); | |
34e1f2bb | 544 | goto out_root; |
d7e09d03 PT |
545 | } |
546 | ||
547 | #ifdef CONFIG_FS_POSIX_ACL | |
548 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { | |
549 | rct_init(&sbi->ll_rct); | |
550 | et_init(&sbi->ll_et); | |
551 | } | |
552 | #endif | |
553 | ||
554 | checksum = sbi->ll_flags & LL_SBI_CHECKSUM; | |
555 | err = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CHECKSUM), | |
556 | KEY_CHECKSUM, sizeof(checksum), &checksum, | |
557 | NULL); | |
558 | cl_sb_init(sb); | |
559 | ||
560 | err = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CACHE_SET), | |
561 | KEY_CACHE_SET, sizeof(sbi->ll_cache), | |
562 | &sbi->ll_cache, NULL); | |
563 | ||
564 | sb->s_root = d_make_root(root); | |
565 | if (sb->s_root == NULL) { | |
566 | CERROR("%s: can't make root dentry\n", | |
567 | ll_get_fsname(sb, NULL, 0)); | |
34e1f2bb | 568 | err = -ENOMEM; |
caf382fe | 569 | goto out_lock_cn_cb; |
d7e09d03 PT |
570 | } |
571 | ||
d7e09d03 PT |
572 | sbi->ll_sdev_orig = sb->s_dev; |
573 | ||
574 | /* We set sb->s_dev equal on all lustre clients in order to support | |
575 | * NFS export clustering. NFSD requires that the FSID be the same | |
576 | * on all clients. */ | |
577 | /* s_dev is also used in lt_compare() to compare two fs, but that is | |
578 | * only a node-local comparison. */ | |
579 | uuid = obd_get_uuid(sbi->ll_md_exp); | |
bd994071 | 580 | if (uuid != NULL) { |
d7e09d03 | 581 | sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid)); |
bd994071 FY |
582 | get_uuid2fsid(uuid->uuid, strlen(uuid->uuid), &sbi->ll_fsid); |
583 | } | |
d7e09d03 PT |
584 | |
585 | if (data != NULL) | |
586 | OBD_FREE_PTR(data); | |
587 | if (osfs != NULL) | |
588 | OBD_FREE_PTR(osfs); | |
589 | ||
0a3bdb00 | 590 | return err; |
d7e09d03 | 591 | out_root: |
ddafd514 | 592 | iput(root); |
d7e09d03 PT |
593 | out_lock_cn_cb: |
594 | obd_fid_fini(sbi->ll_dt_exp->exp_obd); | |
595 | out_dt: | |
596 | obd_disconnect(sbi->ll_dt_exp); | |
597 | sbi->ll_dt_exp = NULL; | |
598 | /* Make sure all OScs are gone, since cl_cache is accessing sbi. */ | |
599 | obd_zombie_barrier(); | |
600 | out_md_fid: | |
601 | obd_fid_fini(sbi->ll_md_exp->exp_obd); | |
602 | out_md: | |
603 | obd_disconnect(sbi->ll_md_exp); | |
604 | sbi->ll_md_exp = NULL; | |
605 | out: | |
606 | if (data != NULL) | |
607 | OBD_FREE_PTR(data); | |
608 | if (osfs != NULL) | |
609 | OBD_FREE_PTR(osfs); | |
610 | lprocfs_unregister_mountpoint(sbi); | |
611 | return err; | |
612 | } | |
613 | ||
614 | int ll_get_max_mdsize(struct ll_sb_info *sbi, int *lmmsize) | |
615 | { | |
616 | int size, rc; | |
617 | ||
618 | *lmmsize = obd_size_diskmd(sbi->ll_dt_exp, NULL); | |
619 | size = sizeof(int); | |
620 | rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_MAX_EASIZE), | |
621 | KEY_MAX_EASIZE, &size, lmmsize, NULL); | |
622 | if (rc) | |
4f211c20 | 623 | CERROR("Get max mdsize error rc %d\n", rc); |
d7e09d03 | 624 | |
0a3bdb00 | 625 | return rc; |
44779340 BB |
626 | } |
627 | ||
628 | int ll_get_default_mdsize(struct ll_sb_info *sbi, int *lmmsize) | |
629 | { | |
630 | int size, rc; | |
631 | ||
632 | size = sizeof(int); | |
633 | rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_DEFAULT_EASIZE), | |
634 | KEY_DEFAULT_EASIZE, &size, lmmsize, NULL); | |
635 | if (rc) | |
636 | CERROR("Get default mdsize error rc %d\n", rc); | |
637 | ||
638 | return rc; | |
639 | } | |
640 | ||
641 | int ll_get_max_cookiesize(struct ll_sb_info *sbi, int *lmmsize) | |
642 | { | |
643 | int size, rc; | |
644 | ||
645 | size = sizeof(int); | |
646 | rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_MAX_COOKIESIZE), | |
647 | KEY_MAX_COOKIESIZE, &size, lmmsize, NULL); | |
648 | if (rc) | |
649 | CERROR("Get max cookiesize error rc %d\n", rc); | |
650 | ||
651 | return rc; | |
652 | } | |
653 | ||
654 | int ll_get_default_cookiesize(struct ll_sb_info *sbi, int *lmmsize) | |
655 | { | |
656 | int size, rc; | |
657 | ||
658 | size = sizeof(int); | |
659 | rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_DEFAULT_COOKIESIZE), | |
660 | KEY_DEFAULT_COOKIESIZE, &size, lmmsize, NULL); | |
661 | if (rc) | |
662 | CERROR("Get default cookiesize error rc %d\n", rc); | |
663 | ||
664 | return rc; | |
d7e09d03 PT |
665 | } |
666 | ||
2d95f10e | 667 | static void client_common_put_super(struct super_block *sb) |
d7e09d03 PT |
668 | { |
669 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
d7e09d03 PT |
670 | |
671 | #ifdef CONFIG_FS_POSIX_ACL | |
672 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { | |
673 | et_fini(&sbi->ll_et); | |
674 | rct_fini(&sbi->ll_rct); | |
675 | } | |
676 | #endif | |
677 | ||
678 | ll_close_thread_shutdown(sbi->ll_lcq); | |
679 | ||
680 | cl_sb_fini(sb); | |
681 | ||
682 | list_del(&sbi->ll_conn_chain); | |
683 | ||
684 | obd_fid_fini(sbi->ll_dt_exp->exp_obd); | |
685 | obd_disconnect(sbi->ll_dt_exp); | |
686 | sbi->ll_dt_exp = NULL; | |
687 | /* wait till all OSCs are gone, since cl_cache is accessing sbi. | |
688 | * see LU-2543. */ | |
689 | obd_zombie_barrier(); | |
690 | ||
691 | lprocfs_unregister_mountpoint(sbi); | |
692 | ||
693 | obd_fid_fini(sbi->ll_md_exp->exp_obd); | |
694 | obd_disconnect(sbi->ll_md_exp); | |
695 | sbi->ll_md_exp = NULL; | |
d7e09d03 PT |
696 | } |
697 | ||
698 | void ll_kill_super(struct super_block *sb) | |
699 | { | |
700 | struct ll_sb_info *sbi; | |
701 | ||
d7e09d03 PT |
702 | /* not init sb ?*/ |
703 | if (!(sb->s_flags & MS_ACTIVE)) | |
704 | return; | |
705 | ||
706 | sbi = ll_s2sbi(sb); | |
e6768831 TJ |
707 | /* we need to restore s_dev from changed for clustered NFS before |
708 | * put_super because new kernels have cached s_dev and change sb->s_dev | |
709 | * in put_super not affected real removing devices */ | |
65fb55d1 | 710 | if (sbi) { |
d7e09d03 | 711 | sb->s_dev = sbi->ll_sdev_orig; |
65fb55d1 NY |
712 | sbi->ll_umounting = 1; |
713 | } | |
d7e09d03 PT |
714 | } |
715 | ||
d7e09d03 PT |
716 | static inline int ll_set_opt(const char *opt, char *data, int fl) |
717 | { | |
718 | if (strncmp(opt, data, strlen(opt)) != 0) | |
fbe7c6c7 | 719 | return 0; |
d7e09d03 | 720 | else |
fbe7c6c7 | 721 | return fl; |
d7e09d03 PT |
722 | } |
723 | ||
724 | /* non-client-specific mount options are parsed in lmd_parse */ | |
725 | static int ll_options(char *options, int *flags) | |
726 | { | |
727 | int tmp; | |
728 | char *s1 = options, *s2; | |
d7e09d03 PT |
729 | |
730 | if (!options) | |
0a3bdb00 | 731 | return 0; |
d7e09d03 PT |
732 | |
733 | CDEBUG(D_CONFIG, "Parsing opts %s\n", options); | |
734 | ||
735 | while (*s1) { | |
736 | CDEBUG(D_SUPER, "next opt=%s\n", s1); | |
737 | tmp = ll_set_opt("nolock", s1, LL_SBI_NOLCK); | |
738 | if (tmp) { | |
739 | *flags |= tmp; | |
740 | goto next; | |
741 | } | |
742 | tmp = ll_set_opt("flock", s1, LL_SBI_FLOCK); | |
743 | if (tmp) { | |
744 | *flags |= tmp; | |
745 | goto next; | |
746 | } | |
747 | tmp = ll_set_opt("localflock", s1, LL_SBI_LOCALFLOCK); | |
748 | if (tmp) { | |
749 | *flags |= tmp; | |
750 | goto next; | |
751 | } | |
752 | tmp = ll_set_opt("noflock", s1, LL_SBI_FLOCK|LL_SBI_LOCALFLOCK); | |
753 | if (tmp) { | |
754 | *flags &= ~tmp; | |
755 | goto next; | |
756 | } | |
757 | tmp = ll_set_opt("user_xattr", s1, LL_SBI_USER_XATTR); | |
758 | if (tmp) { | |
759 | *flags |= tmp; | |
760 | goto next; | |
761 | } | |
762 | tmp = ll_set_opt("nouser_xattr", s1, LL_SBI_USER_XATTR); | |
763 | if (tmp) { | |
764 | *flags &= ~tmp; | |
765 | goto next; | |
766 | } | |
d7e09d03 PT |
767 | tmp = ll_set_opt("remote_client", s1, LL_SBI_RMT_CLIENT); |
768 | if (tmp) { | |
769 | *flags |= tmp; | |
770 | goto next; | |
771 | } | |
772 | tmp = ll_set_opt("user_fid2path", s1, LL_SBI_USER_FID2PATH); | |
773 | if (tmp) { | |
774 | *flags |= tmp; | |
775 | goto next; | |
776 | } | |
777 | tmp = ll_set_opt("nouser_fid2path", s1, LL_SBI_USER_FID2PATH); | |
778 | if (tmp) { | |
779 | *flags &= ~tmp; | |
780 | goto next; | |
781 | } | |
782 | ||
783 | tmp = ll_set_opt("checksum", s1, LL_SBI_CHECKSUM); | |
784 | if (tmp) { | |
785 | *flags |= tmp; | |
786 | goto next; | |
787 | } | |
788 | tmp = ll_set_opt("nochecksum", s1, LL_SBI_CHECKSUM); | |
789 | if (tmp) { | |
790 | *flags &= ~tmp; | |
791 | goto next; | |
792 | } | |
793 | tmp = ll_set_opt("lruresize", s1, LL_SBI_LRU_RESIZE); | |
794 | if (tmp) { | |
795 | *flags |= tmp; | |
796 | goto next; | |
797 | } | |
798 | tmp = ll_set_opt("nolruresize", s1, LL_SBI_LRU_RESIZE); | |
799 | if (tmp) { | |
800 | *flags &= ~tmp; | |
801 | goto next; | |
802 | } | |
803 | tmp = ll_set_opt("lazystatfs", s1, LL_SBI_LAZYSTATFS); | |
804 | if (tmp) { | |
805 | *flags |= tmp; | |
806 | goto next; | |
807 | } | |
808 | tmp = ll_set_opt("nolazystatfs", s1, LL_SBI_LAZYSTATFS); | |
809 | if (tmp) { | |
810 | *flags &= ~tmp; | |
811 | goto next; | |
812 | } | |
813 | tmp = ll_set_opt("som_preview", s1, LL_SBI_SOM_PREVIEW); | |
814 | if (tmp) { | |
815 | *flags |= tmp; | |
816 | goto next; | |
817 | } | |
818 | tmp = ll_set_opt("32bitapi", s1, LL_SBI_32BIT_API); | |
819 | if (tmp) { | |
820 | *flags |= tmp; | |
821 | goto next; | |
822 | } | |
823 | tmp = ll_set_opt("verbose", s1, LL_SBI_VERBOSE); | |
824 | if (tmp) { | |
825 | *flags |= tmp; | |
826 | goto next; | |
827 | } | |
828 | tmp = ll_set_opt("noverbose", s1, LL_SBI_VERBOSE); | |
829 | if (tmp) { | |
830 | *flags &= ~tmp; | |
831 | goto next; | |
832 | } | |
833 | LCONSOLE_ERROR_MSG(0x152, "Unknown option '%s', won't mount.\n", | |
834 | s1); | |
0a3bdb00 | 835 | return -EINVAL; |
d7e09d03 PT |
836 | |
837 | next: | |
838 | /* Find next opt */ | |
839 | s2 = strchr(s1, ','); | |
840 | if (s2 == NULL) | |
841 | break; | |
842 | s1 = s2 + 1; | |
843 | } | |
0a3bdb00 | 844 | return 0; |
d7e09d03 PT |
845 | } |
846 | ||
847 | void ll_lli_init(struct ll_inode_info *lli) | |
848 | { | |
849 | lli->lli_inode_magic = LLI_INODE_MAGIC; | |
850 | lli->lli_flags = 0; | |
851 | lli->lli_ioepoch = 0; | |
852 | lli->lli_maxbytes = MAX_LFS_FILESIZE; | |
853 | spin_lock_init(&lli->lli_lock); | |
854 | lli->lli_posix_acl = NULL; | |
855 | lli->lli_remote_perms = NULL; | |
856 | mutex_init(&lli->lli_rmtperm_mutex); | |
857 | /* Do not set lli_fid, it has been initialized already. */ | |
858 | fid_zero(&lli->lli_pfid); | |
859 | INIT_LIST_HEAD(&lli->lli_close_list); | |
860 | INIT_LIST_HEAD(&lli->lli_oss_capas); | |
861 | atomic_set(&lli->lli_open_count, 0); | |
862 | lli->lli_mds_capa = NULL; | |
863 | lli->lli_rmtperm_time = 0; | |
864 | lli->lli_pending_och = NULL; | |
865 | lli->lli_mds_read_och = NULL; | |
866 | lli->lli_mds_write_och = NULL; | |
867 | lli->lli_mds_exec_och = NULL; | |
868 | lli->lli_open_fd_read_count = 0; | |
869 | lli->lli_open_fd_write_count = 0; | |
870 | lli->lli_open_fd_exec_count = 0; | |
871 | mutex_init(&lli->lli_och_mutex); | |
872 | spin_lock_init(&lli->lli_agl_lock); | |
873 | lli->lli_has_smd = false; | |
09aed8a5 JX |
874 | spin_lock_init(&lli->lli_layout_lock); |
875 | ll_layout_version_set(lli, LL_LAYOUT_GEN_NONE); | |
d7e09d03 PT |
876 | lli->lli_clob = NULL; |
877 | ||
7fc1f831 AP |
878 | init_rwsem(&lli->lli_xattrs_list_rwsem); |
879 | mutex_init(&lli->lli_xattrs_enq_lock); | |
880 | ||
d7e09d03 PT |
881 | LASSERT(lli->lli_vfs_inode.i_mode != 0); |
882 | if (S_ISDIR(lli->lli_vfs_inode.i_mode)) { | |
883 | mutex_init(&lli->lli_readdir_mutex); | |
884 | lli->lli_opendir_key = NULL; | |
885 | lli->lli_sai = NULL; | |
d7e09d03 PT |
886 | spin_lock_init(&lli->lli_sa_lock); |
887 | lli->lli_opendir_pid = 0; | |
888 | } else { | |
47a57bde | 889 | mutex_init(&lli->lli_size_mutex); |
d7e09d03 PT |
890 | lli->lli_symlink_name = NULL; |
891 | init_rwsem(&lli->lli_trunc_sem); | |
892 | mutex_init(&lli->lli_write_mutex); | |
893 | init_rwsem(&lli->lli_glimpse_sem); | |
894 | lli->lli_glimpse_time = 0; | |
895 | INIT_LIST_HEAD(&lli->lli_agl_list); | |
896 | lli->lli_agl_index = 0; | |
897 | lli->lli_async_rc = 0; | |
d7e09d03 PT |
898 | } |
899 | mutex_init(&lli->lli_layout_mutex); | |
900 | } | |
901 | ||
902 | static inline int ll_bdi_register(struct backing_dev_info *bdi) | |
903 | { | |
904 | static atomic_t ll_bdi_num = ATOMIC_INIT(0); | |
905 | ||
906 | bdi->name = "lustre"; | |
907 | return bdi_register(bdi, NULL, "lustre-%d", | |
908 | atomic_inc_return(&ll_bdi_num)); | |
909 | } | |
910 | ||
911 | int ll_fill_super(struct super_block *sb, struct vfsmount *mnt) | |
912 | { | |
913 | struct lustre_profile *lprof = NULL; | |
914 | struct lustre_sb_info *lsi = s2lsi(sb); | |
915 | struct ll_sb_info *sbi; | |
916 | char *dt = NULL, *md = NULL; | |
917 | char *profilenm = get_profile_name(sb); | |
918 | struct config_llog_instance *cfg; | |
919 | /* %p for void* in printf needs 16+2 characters: 0xffffffffffffffff */ | |
920 | const int instlen = sizeof(cfg->cfg_instance) * 2 + 2; | |
921 | int err; | |
d7e09d03 PT |
922 | |
923 | CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb); | |
924 | ||
496a51bd JL |
925 | cfg = kzalloc(sizeof(*cfg), GFP_NOFS); |
926 | if (!cfg) | |
0a3bdb00 | 927 | return -ENOMEM; |
d7e09d03 PT |
928 | |
929 | try_module_get(THIS_MODULE); | |
930 | ||
931 | /* client additional sb info */ | |
932 | lsi->lsi_llsbi = sbi = ll_init_sbi(); | |
933 | if (!sbi) { | |
934 | module_put(THIS_MODULE); | |
935 | OBD_FREE_PTR(cfg); | |
0a3bdb00 | 936 | return -ENOMEM; |
d7e09d03 PT |
937 | } |
938 | ||
939 | err = ll_options(lsi->lsi_lmd->lmd_opts, &sbi->ll_flags); | |
940 | if (err) | |
34e1f2bb | 941 | goto out_free; |
d7e09d03 PT |
942 | |
943 | err = bdi_init(&lsi->lsi_bdi); | |
944 | if (err) | |
34e1f2bb | 945 | goto out_free; |
d7e09d03 | 946 | lsi->lsi_flags |= LSI_BDI_INITIALIZED; |
b4caecd4 | 947 | lsi->lsi_bdi.capabilities = 0; |
d7e09d03 PT |
948 | err = ll_bdi_register(&lsi->lsi_bdi); |
949 | if (err) | |
34e1f2bb | 950 | goto out_free; |
d7e09d03 PT |
951 | |
952 | sb->s_bdi = &lsi->lsi_bdi; | |
3ea8f3bc LS |
953 | /* kernel >= 2.6.38 store dentry operations in sb->s_d_op. */ |
954 | sb->s_d_op = &ll_d_ops; | |
d7e09d03 PT |
955 | |
956 | /* Generate a string unique to this super, in case some joker tries | |
957 | to mount the same fs at two mount points. | |
958 | Use the address of the super itself.*/ | |
959 | cfg->cfg_instance = sb; | |
960 | cfg->cfg_uuid = lsi->lsi_llsbi->ll_sb_uuid; | |
961 | cfg->cfg_callback = class_config_llog_handler; | |
962 | /* set up client obds */ | |
963 | err = lustre_process_log(sb, profilenm, cfg); | |
964 | if (err < 0) { | |
965 | CERROR("Unable to process log: %d\n", err); | |
34e1f2bb | 966 | goto out_free; |
d7e09d03 PT |
967 | } |
968 | ||
969 | /* Profile set with LCFG_MOUNTOPT so we can find our mdc and osc obds */ | |
970 | lprof = class_get_profile(profilenm); | |
971 | if (lprof == NULL) { | |
2d00bd17 JP |
972 | LCONSOLE_ERROR_MSG(0x156, "The client profile '%s' could not be read from the MGS. Does that filesystem exist?\n", |
973 | profilenm); | |
34e1f2bb JL |
974 | err = -EINVAL; |
975 | goto out_free; | |
d7e09d03 PT |
976 | } |
977 | CDEBUG(D_CONFIG, "Found profile %s: mdc=%s osc=%s\n", profilenm, | |
978 | lprof->lp_md, lprof->lp_dt); | |
979 | ||
95745e9b | 980 | dt = kasprintf(GFP_NOFS, "%s-%p", lprof->lp_dt, cfg->cfg_instance); |
34e1f2bb JL |
981 | if (!dt) { |
982 | err = -ENOMEM; | |
983 | goto out_free; | |
984 | } | |
d7e09d03 | 985 | |
ef2e1a44 | 986 | md = kasprintf(GFP_NOFS, "%s-%p", lprof->lp_md, cfg->cfg_instance); |
34e1f2bb JL |
987 | if (!md) { |
988 | err = -ENOMEM; | |
989 | goto out_free; | |
990 | } | |
d7e09d03 PT |
991 | |
992 | /* connections, registrations, sb setup */ | |
993 | err = client_common_fill_super(sb, md, dt, mnt); | |
994 | ||
995 | out_free: | |
996 | if (md) | |
997 | OBD_FREE(md, strlen(lprof->lp_md) + instlen + 2); | |
998 | if (dt) | |
999 | OBD_FREE(dt, strlen(lprof->lp_dt) + instlen + 2); | |
1000 | if (err) | |
1001 | ll_put_super(sb); | |
1002 | else if (sbi->ll_flags & LL_SBI_VERBOSE) | |
1003 | LCONSOLE_WARN("Mounted %s\n", profilenm); | |
1004 | ||
1005 | OBD_FREE_PTR(cfg); | |
0a3bdb00 | 1006 | return err; |
d7e09d03 PT |
1007 | } /* ll_fill_super */ |
1008 | ||
d7e09d03 PT |
1009 | void ll_put_super(struct super_block *sb) |
1010 | { | |
7d4bae45 | 1011 | struct config_llog_instance cfg, params_cfg; |
d7e09d03 PT |
1012 | struct obd_device *obd; |
1013 | struct lustre_sb_info *lsi = s2lsi(sb); | |
1014 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
1015 | char *profilenm = get_profile_name(sb); | |
c52f69c5 | 1016 | int next, force = 1; |
d7e09d03 PT |
1017 | |
1018 | CDEBUG(D_VFSTRACE, "VFS Op: sb %p - %s\n", sb, profilenm); | |
1019 | ||
1020 | ll_print_capa_stat(sbi); | |
1021 | ||
1022 | cfg.cfg_instance = sb; | |
1023 | lustre_end_log(sb, profilenm, &cfg); | |
1024 | ||
7d4bae45 AB |
1025 | params_cfg.cfg_instance = sb; |
1026 | lustre_end_log(sb, PARAMS_FILENAME, ¶ms_cfg); | |
1027 | ||
d7e09d03 PT |
1028 | if (sbi->ll_md_exp) { |
1029 | obd = class_exp2obd(sbi->ll_md_exp); | |
1030 | if (obd) | |
1031 | force = obd->obd_force; | |
1032 | } | |
1033 | ||
d7e09d03 PT |
1034 | /* We need to set force before the lov_disconnect in |
1035 | lustre_common_put_super, since l_d cleans up osc's as well. */ | |
1036 | if (force) { | |
1037 | next = 0; | |
1038 | while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, | |
1039 | &next)) != NULL) { | |
1040 | obd->obd_force = force; | |
1041 | } | |
1042 | } | |
1043 | ||
1044 | if (sbi->ll_lcq) { | |
1045 | /* Only if client_common_fill_super succeeded */ | |
1046 | client_common_put_super(sb); | |
1047 | } | |
1048 | ||
1049 | next = 0; | |
a15dbf99 | 1050 | while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next))) |
d7e09d03 | 1051 | class_manual_cleanup(obd); |
d7e09d03 PT |
1052 | |
1053 | if (sbi->ll_flags & LL_SBI_VERBOSE) | |
1054 | LCONSOLE_WARN("Unmounted %s\n", profilenm ? profilenm : ""); | |
1055 | ||
1056 | if (profilenm) | |
1057 | class_del_profile(profilenm); | |
1058 | ||
1059 | if (lsi->lsi_flags & LSI_BDI_INITIALIZED) { | |
1060 | bdi_destroy(&lsi->lsi_bdi); | |
1061 | lsi->lsi_flags &= ~LSI_BDI_INITIALIZED; | |
1062 | } | |
1063 | ||
1064 | ll_free_sbi(sb); | |
1065 | lsi->lsi_llsbi = NULL; | |
1066 | ||
1067 | lustre_common_put_super(sb); | |
1068 | ||
1069 | module_put(THIS_MODULE); | |
d7e09d03 PT |
1070 | } /* client_put_super */ |
1071 | ||
1072 | struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock) | |
1073 | { | |
1074 | struct inode *inode = NULL; | |
1075 | ||
1076 | /* NOTE: we depend on atomic igrab() -bzzz */ | |
1077 | lock_res_and_lock(lock); | |
1078 | if (lock->l_resource->lr_lvb_inode) { | |
aff9d8e8 | 1079 | struct ll_inode_info *lli; |
cf29a7b6 | 1080 | |
d7e09d03 PT |
1081 | lli = ll_i2info(lock->l_resource->lr_lvb_inode); |
1082 | if (lli->lli_inode_magic == LLI_INODE_MAGIC) { | |
1083 | inode = igrab(lock->l_resource->lr_lvb_inode); | |
1084 | } else { | |
1085 | inode = lock->l_resource->lr_lvb_inode; | |
1086 | LDLM_DEBUG_LIMIT(inode->i_state & I_FREEING ? D_INFO : | |
2d00bd17 | 1087 | D_WARNING, lock, "lr_lvb_inode %p is bogus: magic %08x", |
d7e09d03 PT |
1088 | lock->l_resource->lr_lvb_inode, |
1089 | lli->lli_inode_magic); | |
1090 | inode = NULL; | |
1091 | } | |
1092 | } | |
1093 | unlock_res_and_lock(lock); | |
1094 | return inode; | |
1095 | } | |
1096 | ||
d7e09d03 PT |
1097 | void ll_clear_inode(struct inode *inode) |
1098 | { | |
1099 | struct ll_inode_info *lli = ll_i2info(inode); | |
1100 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
d7e09d03 PT |
1101 | |
1102 | CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino, | |
1103 | inode->i_generation, inode); | |
1104 | ||
1105 | if (S_ISDIR(inode->i_mode)) { | |
1106 | /* these should have been cleared in ll_file_release */ | |
1107 | LASSERT(lli->lli_opendir_key == NULL); | |
1108 | LASSERT(lli->lli_sai == NULL); | |
1109 | LASSERT(lli->lli_opendir_pid == 0); | |
1110 | } | |
1111 | ||
ae5ef67b | 1112 | spin_lock(&lli->lli_lock); |
d7e09d03 | 1113 | ll_i2info(inode)->lli_flags &= ~LLIF_MDS_SIZE_LOCK; |
ae5ef67b | 1114 | spin_unlock(&lli->lli_lock); |
d7e09d03 PT |
1115 | md_null_inode(sbi->ll_md_exp, ll_inode2fid(inode)); |
1116 | ||
1117 | LASSERT(!lli->lli_open_fd_write_count); | |
1118 | LASSERT(!lli->lli_open_fd_read_count); | |
1119 | LASSERT(!lli->lli_open_fd_exec_count); | |
1120 | ||
1121 | if (lli->lli_mds_write_och) | |
1122 | ll_md_real_close(inode, FMODE_WRITE); | |
1123 | if (lli->lli_mds_exec_och) | |
1124 | ll_md_real_close(inode, FMODE_EXEC); | |
1125 | if (lli->lli_mds_read_och) | |
1126 | ll_md_real_close(inode, FMODE_READ); | |
1127 | ||
1128 | if (S_ISLNK(inode->i_mode) && lli->lli_symlink_name) { | |
1129 | OBD_FREE(lli->lli_symlink_name, | |
1130 | strlen(lli->lli_symlink_name) + 1); | |
1131 | lli->lli_symlink_name = NULL; | |
1132 | } | |
1133 | ||
7fc1f831 AP |
1134 | ll_xattr_cache_destroy(inode); |
1135 | ||
d7e09d03 PT |
1136 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { |
1137 | LASSERT(lli->lli_posix_acl == NULL); | |
1138 | if (lli->lli_remote_perms) { | |
1139 | free_rmtperm_hash(lli->lli_remote_perms); | |
1140 | lli->lli_remote_perms = NULL; | |
1141 | } | |
1142 | } | |
1143 | #ifdef CONFIG_FS_POSIX_ACL | |
1144 | else if (lli->lli_posix_acl) { | |
1145 | LASSERT(atomic_read(&lli->lli_posix_acl->a_refcount) == 1); | |
1146 | LASSERT(lli->lli_remote_perms == NULL); | |
1147 | posix_acl_release(lli->lli_posix_acl); | |
1148 | lli->lli_posix_acl = NULL; | |
1149 | } | |
1150 | #endif | |
1151 | lli->lli_inode_magic = LLI_INODE_DEAD; | |
1152 | ||
1153 | ll_clear_inode_capas(inode); | |
1154 | if (!S_ISDIR(inode->i_mode)) | |
1155 | LASSERT(list_empty(&lli->lli_agl_list)); | |
1156 | ||
1157 | /* | |
1158 | * XXX This has to be done before lsm is freed below, because | |
1159 | * cl_object still uses inode lsm. | |
1160 | */ | |
1161 | cl_inode_fini(inode); | |
1162 | lli->lli_has_smd = false; | |
d7e09d03 PT |
1163 | } |
1164 | ||
3d3ab8cc | 1165 | static int ll_md_setattr(struct dentry *dentry, struct md_op_data *op_data, |
d7e09d03 PT |
1166 | struct md_open_data **mod) |
1167 | { | |
1168 | struct lustre_md md; | |
1169 | struct inode *inode = dentry->d_inode; | |
1170 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
1171 | struct ptlrpc_request *request = NULL; | |
1172 | int rc, ia_valid; | |
d7e09d03 PT |
1173 | |
1174 | op_data = ll_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0, | |
1175 | LUSTRE_OPC_ANY, NULL); | |
1176 | if (IS_ERR(op_data)) | |
0a3bdb00 | 1177 | return PTR_ERR(op_data); |
d7e09d03 PT |
1178 | |
1179 | rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, NULL, 0, | |
1180 | &request, mod); | |
1181 | if (rc) { | |
1182 | ptlrpc_req_finished(request); | |
1183 | if (rc == -ENOENT) { | |
1184 | clear_nlink(inode); | |
1185 | /* Unlinked special device node? Or just a race? | |
1186 | * Pretend we done everything. */ | |
1187 | if (!S_ISREG(inode->i_mode) && | |
1188 | !S_ISDIR(inode->i_mode)) { | |
1189 | ia_valid = op_data->op_attr.ia_valid; | |
1190 | op_data->op_attr.ia_valid &= ~TIMES_SET_FLAGS; | |
1191 | rc = simple_setattr(dentry, &op_data->op_attr); | |
1192 | op_data->op_attr.ia_valid = ia_valid; | |
1193 | } | |
1194 | } else if (rc != -EPERM && rc != -EACCES && rc != -ETXTBSY) { | |
1195 | CERROR("md_setattr fails: rc = %d\n", rc); | |
1196 | } | |
0a3bdb00 | 1197 | return rc; |
d7e09d03 PT |
1198 | } |
1199 | ||
1200 | rc = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp, | |
1201 | sbi->ll_md_exp, &md); | |
1202 | if (rc) { | |
1203 | ptlrpc_req_finished(request); | |
0a3bdb00 | 1204 | return rc; |
d7e09d03 PT |
1205 | } |
1206 | ||
251c4317 JH |
1207 | ia_valid = op_data->op_attr.ia_valid; |
1208 | /* inode size will be in ll_setattr_ost, can't do it now since dirty | |
1209 | * cache is not cleared yet. */ | |
1210 | op_data->op_attr.ia_valid &= ~(TIMES_SET_FLAGS | ATTR_SIZE); | |
1211 | rc = simple_setattr(dentry, &op_data->op_attr); | |
1212 | op_data->op_attr.ia_valid = ia_valid; | |
1213 | ||
d7e09d03 PT |
1214 | /* Extract epoch data if obtained. */ |
1215 | op_data->op_handle = md.body->handle; | |
1216 | op_data->op_ioepoch = md.body->ioepoch; | |
1217 | ||
1218 | ll_update_inode(inode, &md); | |
1219 | ptlrpc_req_finished(request); | |
1220 | ||
0a3bdb00 | 1221 | return rc; |
d7e09d03 PT |
1222 | } |
1223 | ||
1224 | /* Close IO epoch and send Size-on-MDS attribute update. */ | |
1225 | static int ll_setattr_done_writing(struct inode *inode, | |
1226 | struct md_op_data *op_data, | |
1227 | struct md_open_data *mod) | |
1228 | { | |
1229 | struct ll_inode_info *lli = ll_i2info(inode); | |
1230 | int rc = 0; | |
d7e09d03 PT |
1231 | |
1232 | LASSERT(op_data != NULL); | |
1233 | if (!S_ISREG(inode->i_mode)) | |
0a3bdb00 | 1234 | return 0; |
d7e09d03 | 1235 | |
b0f5aad5 | 1236 | CDEBUG(D_INODE, "Epoch %llu closed on "DFID" for truncate\n", |
d7e09d03 PT |
1237 | op_data->op_ioepoch, PFID(&lli->lli_fid)); |
1238 | ||
1239 | op_data->op_flags = MF_EPOCH_CLOSE; | |
1240 | ll_done_writing_attr(inode, op_data); | |
1241 | ll_pack_inode2opdata(inode, op_data, NULL); | |
1242 | ||
1243 | rc = md_done_writing(ll_i2sbi(inode)->ll_md_exp, op_data, mod); | |
1244 | if (rc == -EAGAIN) { | |
1245 | /* MDS has instructed us to obtain Size-on-MDS attribute | |
1246 | * from OSTs and send setattr to back to MDS. */ | |
1247 | rc = ll_som_update(inode, op_data); | |
1248 | } else if (rc) { | |
1249 | CERROR("inode %lu mdc truncate failed: rc = %d\n", | |
1250 | inode->i_ino, rc); | |
1251 | } | |
0a3bdb00 | 1252 | return rc; |
d7e09d03 PT |
1253 | } |
1254 | ||
1255 | static int ll_setattr_ost(struct inode *inode, struct iattr *attr) | |
1256 | { | |
1257 | struct obd_capa *capa; | |
1258 | int rc; | |
1259 | ||
1260 | if (attr->ia_valid & ATTR_SIZE) | |
1261 | capa = ll_osscapa_get(inode, CAPA_OPC_OSS_TRUNC); | |
1262 | else | |
1263 | capa = ll_mdscapa_get(inode); | |
1264 | ||
1265 | rc = cl_setattr_ost(inode, attr, capa); | |
1266 | ||
1267 | if (attr->ia_valid & ATTR_SIZE) | |
1268 | ll_truncate_free_capa(capa); | |
1269 | else | |
1270 | capa_put(capa); | |
1271 | ||
1272 | return rc; | |
1273 | } | |
1274 | ||
1275 | ||
1276 | /* If this inode has objects allocated to it (lsm != NULL), then the OST | |
1277 | * object(s) determine the file size and mtime. Otherwise, the MDS will | |
1278 | * keep these values until such a time that objects are allocated for it. | |
1279 | * We do the MDS operations first, as it is checking permissions for us. | |
1280 | * We don't to the MDS RPC if there is nothing that we want to store there, | |
1281 | * otherwise there is no harm in updating mtime/atime on the MDS if we are | |
1282 | * going to do an RPC anyways. | |
1283 | * | |
1284 | * If we are doing a truncate, we will send the mtime and ctime updates | |
1285 | * to the OST with the punch RPC, otherwise we do an explicit setattr RPC. | |
1286 | * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE | |
1287 | * at the same time. | |
a720b790 JL |
1288 | * |
1289 | * In case of HSMimport, we only set attr on MDS. | |
d7e09d03 | 1290 | */ |
a720b790 | 1291 | int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import) |
d7e09d03 PT |
1292 | { |
1293 | struct inode *inode = dentry->d_inode; | |
1294 | struct ll_inode_info *lli = ll_i2info(inode); | |
1295 | struct md_op_data *op_data = NULL; | |
1296 | struct md_open_data *mod = NULL; | |
5ea17d6c | 1297 | bool file_is_released = false; |
d7e09d03 | 1298 | int rc = 0, rc1 = 0; |
d7e09d03 | 1299 | |
a720b790 JL |
1300 | CDEBUG(D_VFSTRACE, |
1301 | "%s: setattr inode %p/fid:"DFID | |
1302 | " from %llu to %llu, valid %x, hsm_import %d\n", | |
1303 | ll_get_fsname(inode->i_sb, NULL, 0), inode, | |
d7e09d03 | 1304 | PFID(&lli->lli_fid), i_size_read(inode), attr->ia_size, |
a720b790 | 1305 | attr->ia_valid, hsm_import); |
d7e09d03 PT |
1306 | |
1307 | if (attr->ia_valid & ATTR_SIZE) { | |
1308 | /* Check new size against VFS/VM file size limit and rlimit */ | |
1309 | rc = inode_newsize_ok(inode, attr->ia_size); | |
1310 | if (rc) | |
0a3bdb00 | 1311 | return rc; |
d7e09d03 PT |
1312 | |
1313 | /* The maximum Lustre file size is variable, based on the | |
1314 | * OST maximum object size and number of stripes. This | |
1315 | * needs another check in addition to the VFS check above. */ | |
1316 | if (attr->ia_size > ll_file_maxbytes(inode)) { | |
1d8cb70c | 1317 | CDEBUG(D_INODE, "file "DFID" too large %llu > %llu\n", |
d7e09d03 PT |
1318 | PFID(&lli->lli_fid), attr->ia_size, |
1319 | ll_file_maxbytes(inode)); | |
0a3bdb00 | 1320 | return -EFBIG; |
d7e09d03 PT |
1321 | } |
1322 | ||
1323 | attr->ia_valid |= ATTR_MTIME | ATTR_CTIME; | |
1324 | } | |
1325 | ||
1326 | /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */ | |
1327 | if (attr->ia_valid & TIMES_SET_FLAGS) { | |
4b1a25f0 | 1328 | if ((!uid_eq(current_fsuid(), inode->i_uid)) && |
2eb90a75 | 1329 | !capable(CFS_CAP_FOWNER)) |
0a3bdb00 | 1330 | return -EPERM; |
d7e09d03 PT |
1331 | } |
1332 | ||
1333 | /* We mark all of the fields "set" so MDS/OST does not re-set them */ | |
1334 | if (attr->ia_valid & ATTR_CTIME) { | |
0f1c743b | 1335 | attr->ia_ctime = CURRENT_TIME; |
d7e09d03 PT |
1336 | attr->ia_valid |= ATTR_CTIME_SET; |
1337 | } | |
1338 | if (!(attr->ia_valid & ATTR_ATIME_SET) && | |
1339 | (attr->ia_valid & ATTR_ATIME)) { | |
0f1c743b | 1340 | attr->ia_atime = CURRENT_TIME; |
d7e09d03 PT |
1341 | attr->ia_valid |= ATTR_ATIME_SET; |
1342 | } | |
1343 | if (!(attr->ia_valid & ATTR_MTIME_SET) && | |
1344 | (attr->ia_valid & ATTR_MTIME)) { | |
0f1c743b | 1345 | attr->ia_mtime = CURRENT_TIME; |
d7e09d03 PT |
1346 | attr->ia_valid |= ATTR_MTIME_SET; |
1347 | } | |
1348 | ||
1349 | if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME)) | |
1350 | CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %lu\n", | |
1351 | LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime), | |
7264b8a5 | 1352 | get_seconds()); |
d7e09d03 PT |
1353 | |
1354 | /* If we are changing file size, file content is modified, flag it. */ | |
1355 | if (attr->ia_valid & ATTR_SIZE) { | |
1356 | attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE; | |
1357 | spin_lock(&lli->lli_lock); | |
1358 | lli->lli_flags |= LLIF_DATA_MODIFIED; | |
1359 | spin_unlock(&lli->lli_lock); | |
1360 | } | |
1361 | ||
1362 | /* We always do an MDS RPC, even if we're only changing the size; | |
1363 | * only the MDS knows whether truncate() should fail with -ETXTBUSY */ | |
1364 | ||
496a51bd JL |
1365 | op_data = kzalloc(sizeof(*op_data), GFP_NOFS); |
1366 | if (!op_data) | |
0a3bdb00 | 1367 | return -ENOMEM; |
d7e09d03 PT |
1368 | |
1369 | if (!S_ISDIR(inode->i_mode)) { | |
1370 | if (attr->ia_valid & ATTR_SIZE) | |
1371 | inode_dio_write_done(inode); | |
1372 | mutex_unlock(&inode->i_mutex); | |
d7e09d03 PT |
1373 | } |
1374 | ||
1375 | memcpy(&op_data->op_attr, attr, sizeof(*attr)); | |
1376 | ||
1377 | /* Open epoch for truncate. */ | |
1378 | if (exp_connect_som(ll_i2mdexp(inode)) && | |
1379 | (attr->ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET))) | |
1380 | op_data->op_flags = MF_EPOCH_OPEN; | |
1381 | ||
5ea17d6c JL |
1382 | /* truncate on a released file must failed with -ENODATA, |
1383 | * so size must not be set on MDS for released file | |
1384 | * but other attributes must be set | |
1385 | */ | |
1386 | if (S_ISREG(inode->i_mode)) { | |
1387 | struct lov_stripe_md *lsm; | |
1388 | __u32 gen; | |
1389 | ||
1390 | ll_layout_refresh(inode, &gen); | |
1391 | lsm = ccc_inode_lsm_get(inode); | |
1392 | if (lsm && lsm->lsm_pattern & LOV_PATTERN_F_RELEASED) | |
1393 | file_is_released = true; | |
1394 | ccc_inode_lsm_put(inode, lsm); | |
1395 | } | |
1396 | ||
a720b790 | 1397 | /* if not in HSM import mode, clear size attr for released file |
5ea17d6c JL |
1398 | * we clear the attribute send to MDT in op_data, not the original |
1399 | * received from caller in attr which is used later to | |
1400 | * decide return code */ | |
a720b790 | 1401 | if (file_is_released && (attr->ia_valid & ATTR_SIZE) && !hsm_import) |
5ea17d6c JL |
1402 | op_data->op_attr.ia_valid &= ~ATTR_SIZE; |
1403 | ||
d7e09d03 PT |
1404 | rc = ll_md_setattr(dentry, op_data, &mod); |
1405 | if (rc) | |
34e1f2bb | 1406 | goto out; |
d7e09d03 | 1407 | |
a720b790 | 1408 | /* truncate failed (only when non HSM import), others succeed */ |
5ea17d6c | 1409 | if (file_is_released) { |
a720b790 | 1410 | if ((attr->ia_valid & ATTR_SIZE) && !hsm_import) |
34e1f2bb | 1411 | rc = -ENODATA; |
5ea17d6c | 1412 | else |
34e1f2bb JL |
1413 | rc = 0; |
1414 | goto out; | |
5ea17d6c JL |
1415 | } |
1416 | ||
d7e09d03 PT |
1417 | /* RPC to MDT is sent, cancel data modification flag */ |
1418 | if (rc == 0 && (op_data->op_bias & MDS_DATA_MODIFIED)) { | |
1419 | spin_lock(&lli->lli_lock); | |
1420 | lli->lli_flags &= ~LLIF_DATA_MODIFIED; | |
1421 | spin_unlock(&lli->lli_lock); | |
1422 | } | |
1423 | ||
1424 | ll_ioepoch_open(lli, op_data->op_ioepoch); | |
34e1f2bb JL |
1425 | if (!S_ISREG(inode->i_mode)) { |
1426 | rc = 0; | |
1427 | goto out; | |
1428 | } | |
d7e09d03 PT |
1429 | |
1430 | if (attr->ia_valid & (ATTR_SIZE | | |
1431 | ATTR_ATIME | ATTR_ATIME_SET | | |
53bd4a00 | 1432 | ATTR_MTIME | ATTR_MTIME_SET)) { |
d7e09d03 PT |
1433 | /* For truncate and utimes sending attributes to OSTs, setting |
1434 | * mtime/atime to the past will be performed under PW [0:EOF] | |
1435 | * extent lock (new_size:EOF for truncate). It may seem | |
1436 | * excessive to send mtime/atime updates to OSTs when not | |
1437 | * setting times to past, but it is necessary due to possible | |
1438 | * time de-synchronization between MDT inode and OST objects */ | |
178ba1e0 BJ |
1439 | if (attr->ia_valid & ATTR_SIZE) |
1440 | down_write(&lli->lli_trunc_sem); | |
d7e09d03 | 1441 | rc = ll_setattr_ost(inode, attr); |
178ba1e0 BJ |
1442 | if (attr->ia_valid & ATTR_SIZE) |
1443 | up_write(&lli->lli_trunc_sem); | |
53bd4a00 | 1444 | } |
d7e09d03 PT |
1445 | out: |
1446 | if (op_data) { | |
1447 | if (op_data->op_ioepoch) { | |
1448 | rc1 = ll_setattr_done_writing(inode, op_data, mod); | |
1449 | if (!rc) | |
1450 | rc = rc1; | |
1451 | } | |
1452 | ll_finish_md_op_data(op_data); | |
1453 | } | |
1454 | if (!S_ISDIR(inode->i_mode)) { | |
d7e09d03 | 1455 | mutex_lock(&inode->i_mutex); |
a720b790 | 1456 | if ((attr->ia_valid & ATTR_SIZE) && !hsm_import) |
d7e09d03 PT |
1457 | inode_dio_wait(inode); |
1458 | } | |
1459 | ||
1460 | ll_stats_ops_tally(ll_i2sbi(inode), (attr->ia_valid & ATTR_SIZE) ? | |
1461 | LPROC_LL_TRUNC : LPROC_LL_SETATTR, 1); | |
1462 | ||
251c4317 | 1463 | return rc; |
d7e09d03 PT |
1464 | } |
1465 | ||
1466 | int ll_setattr(struct dentry *de, struct iattr *attr) | |
1467 | { | |
1468 | int mode = de->d_inode->i_mode; | |
1469 | ||
1470 | if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) == | |
1471 | (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) | |
1472 | attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE; | |
1473 | ||
1474 | if (((attr->ia_valid & (ATTR_MODE|ATTR_FORCE|ATTR_SIZE)) == | |
1475 | (ATTR_SIZE|ATTR_MODE)) && | |
1476 | (((mode & S_ISUID) && !(attr->ia_mode & S_ISUID)) || | |
1477 | (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) && | |
1478 | !(attr->ia_mode & S_ISGID)))) | |
1479 | attr->ia_valid |= ATTR_FORCE; | |
1480 | ||
98639249 NC |
1481 | if ((attr->ia_valid & ATTR_MODE) && |
1482 | (mode & S_ISUID) && | |
d7e09d03 PT |
1483 | !(attr->ia_mode & S_ISUID) && |
1484 | !(attr->ia_valid & ATTR_KILL_SUID)) | |
1485 | attr->ia_valid |= ATTR_KILL_SUID; | |
1486 | ||
98639249 NC |
1487 | if ((attr->ia_valid & ATTR_MODE) && |
1488 | ((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) && | |
d7e09d03 PT |
1489 | !(attr->ia_mode & S_ISGID) && |
1490 | !(attr->ia_valid & ATTR_KILL_SGID)) | |
1491 | attr->ia_valid |= ATTR_KILL_SGID; | |
1492 | ||
a720b790 | 1493 | return ll_setattr_raw(de, attr, false); |
d7e09d03 PT |
1494 | } |
1495 | ||
1496 | int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs, | |
1497 | __u64 max_age, __u32 flags) | |
1498 | { | |
1499 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
1500 | struct obd_statfs obd_osfs; | |
1501 | int rc; | |
d7e09d03 PT |
1502 | |
1503 | rc = obd_statfs(NULL, sbi->ll_md_exp, osfs, max_age, flags); | |
1504 | if (rc) { | |
1505 | CERROR("md_statfs fails: rc = %d\n", rc); | |
0a3bdb00 | 1506 | return rc; |
d7e09d03 PT |
1507 | } |
1508 | ||
1509 | osfs->os_type = sb->s_magic; | |
1510 | ||
b0f5aad5 | 1511 | CDEBUG(D_SUPER, "MDC blocks %llu/%llu objects %llu/%llu\n", |
1d8cb70c GD |
1512 | osfs->os_bavail, osfs->os_blocks, osfs->os_ffree, |
1513 | osfs->os_files); | |
d7e09d03 PT |
1514 | |
1515 | if (sbi->ll_flags & LL_SBI_LAZYSTATFS) | |
1516 | flags |= OBD_STATFS_NODELAY; | |
1517 | ||
1518 | rc = obd_statfs_rqset(sbi->ll_dt_exp, &obd_osfs, max_age, flags); | |
1519 | if (rc) { | |
1520 | CERROR("obd_statfs fails: rc = %d\n", rc); | |
0a3bdb00 | 1521 | return rc; |
d7e09d03 PT |
1522 | } |
1523 | ||
b0f5aad5 | 1524 | CDEBUG(D_SUPER, "OSC blocks %llu/%llu objects %llu/%llu\n", |
d7e09d03 PT |
1525 | obd_osfs.os_bavail, obd_osfs.os_blocks, obd_osfs.os_ffree, |
1526 | obd_osfs.os_files); | |
1527 | ||
1528 | osfs->os_bsize = obd_osfs.os_bsize; | |
1529 | osfs->os_blocks = obd_osfs.os_blocks; | |
1530 | osfs->os_bfree = obd_osfs.os_bfree; | |
1531 | osfs->os_bavail = obd_osfs.os_bavail; | |
1532 | ||
1533 | /* If we don't have as many objects free on the OST as inodes | |
1534 | * on the MDS, we reduce the total number of inodes to | |
1535 | * compensate, so that the "inodes in use" number is correct. | |
1536 | */ | |
1537 | if (obd_osfs.os_ffree < osfs->os_ffree) { | |
1538 | osfs->os_files = (osfs->os_files - osfs->os_ffree) + | |
1539 | obd_osfs.os_ffree; | |
1540 | osfs->os_ffree = obd_osfs.os_ffree; | |
1541 | } | |
1542 | ||
0a3bdb00 | 1543 | return rc; |
d7e09d03 PT |
1544 | } |
1545 | int ll_statfs(struct dentry *de, struct kstatfs *sfs) | |
1546 | { | |
1547 | struct super_block *sb = de->d_sb; | |
1548 | struct obd_statfs osfs; | |
1549 | int rc; | |
1550 | ||
b0f5aad5 | 1551 | CDEBUG(D_VFSTRACE, "VFS Op: at %llu jiffies\n", get_jiffies_64()); |
d7e09d03 PT |
1552 | ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_STAFS, 1); |
1553 | ||
1554 | /* Some amount of caching on the client is allowed */ | |
1555 | rc = ll_statfs_internal(sb, &osfs, | |
1556 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), | |
1557 | 0); | |
1558 | if (rc) | |
1559 | return rc; | |
1560 | ||
1561 | statfs_unpack(sfs, &osfs); | |
1562 | ||
1563 | /* We need to downshift for all 32-bit kernels, because we can't | |
1564 | * tell if the kernel is being called via sys_statfs64() or not. | |
1565 | * Stop before overflowing f_bsize - in which case it is better | |
1566 | * to just risk EOVERFLOW if caller is using old sys_statfs(). */ | |
1567 | if (sizeof(long) < 8) { | |
1568 | while (osfs.os_blocks > ~0UL && sfs->f_bsize < 0x40000000) { | |
1569 | sfs->f_bsize <<= 1; | |
1570 | ||
1571 | osfs.os_blocks >>= 1; | |
1572 | osfs.os_bfree >>= 1; | |
1573 | osfs.os_bavail >>= 1; | |
1574 | } | |
1575 | } | |
1576 | ||
1577 | sfs->f_blocks = osfs.os_blocks; | |
1578 | sfs->f_bfree = osfs.os_bfree; | |
1579 | sfs->f_bavail = osfs.os_bavail; | |
bd994071 | 1580 | sfs->f_fsid = ll_s2sbi(sb)->ll_fsid; |
d7e09d03 PT |
1581 | return 0; |
1582 | } | |
1583 | ||
1584 | void ll_inode_size_lock(struct inode *inode) | |
1585 | { | |
1586 | struct ll_inode_info *lli; | |
1587 | ||
1588 | LASSERT(!S_ISDIR(inode->i_mode)); | |
1589 | ||
1590 | lli = ll_i2info(inode); | |
47a57bde | 1591 | mutex_lock(&lli->lli_size_mutex); |
d7e09d03 PT |
1592 | } |
1593 | ||
1594 | void ll_inode_size_unlock(struct inode *inode) | |
1595 | { | |
1596 | struct ll_inode_info *lli; | |
1597 | ||
1598 | lli = ll_i2info(inode); | |
47a57bde | 1599 | mutex_unlock(&lli->lli_size_mutex); |
d7e09d03 PT |
1600 | } |
1601 | ||
1602 | void ll_update_inode(struct inode *inode, struct lustre_md *md) | |
1603 | { | |
1604 | struct ll_inode_info *lli = ll_i2info(inode); | |
1605 | struct mdt_body *body = md->body; | |
1606 | struct lov_stripe_md *lsm = md->lsm; | |
1607 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
1608 | ||
629ecb5b | 1609 | LASSERT((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0)); |
d7e09d03 PT |
1610 | if (lsm != NULL) { |
1611 | if (!lli->lli_has_smd && | |
1612 | !(sbi->ll_flags & LL_SBI_LAYOUT_LOCK)) | |
1613 | cl_file_inode_init(inode, md); | |
1614 | ||
1615 | lli->lli_maxbytes = lsm->lsm_maxbytes; | |
1616 | if (lli->lli_maxbytes > MAX_LFS_FILESIZE) | |
1617 | lli->lli_maxbytes = MAX_LFS_FILESIZE; | |
1618 | } | |
1619 | ||
1620 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { | |
1621 | if (body->valid & OBD_MD_FLRMTPERM) | |
1622 | ll_update_remote_perm(inode, md->remote_perm); | |
1623 | } | |
1624 | #ifdef CONFIG_FS_POSIX_ACL | |
1625 | else if (body->valid & OBD_MD_FLACL) { | |
1626 | spin_lock(&lli->lli_lock); | |
1627 | if (lli->lli_posix_acl) | |
1628 | posix_acl_release(lli->lli_posix_acl); | |
1629 | lli->lli_posix_acl = md->posix_acl; | |
1630 | spin_unlock(&lli->lli_lock); | |
1631 | } | |
1632 | #endif | |
c1e2699d | 1633 | inode->i_ino = cl_fid_build_ino(&body->fid1, |
1634 | sbi->ll_flags & LL_SBI_32BIT_API); | |
d7e09d03 PT |
1635 | inode->i_generation = cl_fid_build_gen(&body->fid1); |
1636 | ||
1637 | if (body->valid & OBD_MD_FLATIME) { | |
1638 | if (body->atime > LTIME_S(inode->i_atime)) | |
1639 | LTIME_S(inode->i_atime) = body->atime; | |
1640 | lli->lli_lvb.lvb_atime = body->atime; | |
1641 | } | |
1642 | if (body->valid & OBD_MD_FLMTIME) { | |
1643 | if (body->mtime > LTIME_S(inode->i_mtime)) { | |
b0f5aad5 GKH |
1644 | CDEBUG(D_INODE, "setting ino %lu mtime from %lu to %llu\n", |
1645 | inode->i_ino, LTIME_S(inode->i_mtime), | |
1646 | body->mtime); | |
d7e09d03 PT |
1647 | LTIME_S(inode->i_mtime) = body->mtime; |
1648 | } | |
1649 | lli->lli_lvb.lvb_mtime = body->mtime; | |
1650 | } | |
1651 | if (body->valid & OBD_MD_FLCTIME) { | |
1652 | if (body->ctime > LTIME_S(inode->i_ctime)) | |
1653 | LTIME_S(inode->i_ctime) = body->ctime; | |
1654 | lli->lli_lvb.lvb_ctime = body->ctime; | |
1655 | } | |
1656 | if (body->valid & OBD_MD_FLMODE) | |
1657 | inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT); | |
1658 | if (body->valid & OBD_MD_FLTYPE) | |
1659 | inode->i_mode = (inode->i_mode & ~S_IFMT)|(body->mode & S_IFMT); | |
1660 | LASSERT(inode->i_mode != 0); | |
566be54d | 1661 | if (S_ISREG(inode->i_mode)) |
e6768831 TJ |
1662 | inode->i_blkbits = min(PTLRPC_MAX_BRW_BITS + 1, |
1663 | LL_MAX_BLKSIZE_BITS); | |
566be54d | 1664 | else |
d7e09d03 | 1665 | inode->i_blkbits = inode->i_sb->s_blocksize_bits; |
d7e09d03 | 1666 | if (body->valid & OBD_MD_FLUID) |
4b1a25f0 | 1667 | inode->i_uid = make_kuid(&init_user_ns, body->uid); |
d7e09d03 | 1668 | if (body->valid & OBD_MD_FLGID) |
4b1a25f0 | 1669 | inode->i_gid = make_kgid(&init_user_ns, body->gid); |
d7e09d03 PT |
1670 | if (body->valid & OBD_MD_FLFLAGS) |
1671 | inode->i_flags = ll_ext_to_inode_flags(body->flags); | |
1672 | if (body->valid & OBD_MD_FLNLINK) | |
1673 | set_nlink(inode, body->nlink); | |
1674 | if (body->valid & OBD_MD_FLRDEV) | |
1675 | inode->i_rdev = old_decode_dev(body->rdev); | |
1676 | ||
1677 | if (body->valid & OBD_MD_FLID) { | |
1678 | /* FID shouldn't be changed! */ | |
1679 | if (fid_is_sane(&lli->lli_fid)) { | |
1680 | LASSERTF(lu_fid_eq(&lli->lli_fid, &body->fid1), | |
1681 | "Trying to change FID "DFID | |
1682 | " to the "DFID", inode %lu/%u(%p)\n", | |
1683 | PFID(&lli->lli_fid), PFID(&body->fid1), | |
1684 | inode->i_ino, inode->i_generation, inode); | |
1685 | } else | |
1686 | lli->lli_fid = body->fid1; | |
1687 | } | |
1688 | ||
1689 | LASSERT(fid_seq(&lli->lli_fid) != 0); | |
1690 | ||
1691 | if (body->valid & OBD_MD_FLSIZE) { | |
1692 | if (exp_connect_som(ll_i2mdexp(inode)) && | |
1693 | S_ISREG(inode->i_mode)) { | |
1694 | struct lustre_handle lockh; | |
1695 | ldlm_mode_t mode; | |
1696 | ||
1697 | /* As it is possible a blocking ast has been processed | |
1698 | * by this time, we need to check there is an UPDATE | |
1699 | * lock on the client and set LLIF_MDS_SIZE_LOCK holding | |
1700 | * it. */ | |
1701 | mode = ll_take_md_lock(inode, MDS_INODELOCK_UPDATE, | |
7fc1f831 AP |
1702 | &lockh, LDLM_FL_CBPENDING, |
1703 | LCK_CR | LCK_CW | | |
1704 | LCK_PR | LCK_PW); | |
d7e09d03 PT |
1705 | if (mode) { |
1706 | if (lli->lli_flags & (LLIF_DONE_WRITING | | |
1707 | LLIF_EPOCH_PENDING | | |
1708 | LLIF_SOM_DIRTY)) { | |
2d00bd17 | 1709 | CERROR("ino %lu flags %u still has size authority! do not trust the size got from MDS\n", |
d7e09d03 PT |
1710 | inode->i_ino, lli->lli_flags); |
1711 | } else { | |
1712 | /* Use old size assignment to avoid | |
1713 | * deadlock bz14138 & bz14326 */ | |
1714 | i_size_write(inode, body->size); | |
ae5ef67b | 1715 | spin_lock(&lli->lli_lock); |
d7e09d03 | 1716 | lli->lli_flags |= LLIF_MDS_SIZE_LOCK; |
ae5ef67b | 1717 | spin_unlock(&lli->lli_lock); |
d7e09d03 PT |
1718 | } |
1719 | ldlm_lock_decref(&lockh, mode); | |
1720 | } | |
1721 | } else { | |
1722 | /* Use old size assignment to avoid | |
1723 | * deadlock bz14138 & bz14326 */ | |
1724 | i_size_write(inode, body->size); | |
1725 | ||
1726 | CDEBUG(D_VFSTRACE, "inode=%lu, updating i_size %llu\n", | |
1727 | inode->i_ino, (unsigned long long)body->size); | |
1728 | } | |
1729 | ||
1730 | if (body->valid & OBD_MD_FLBLOCKS) | |
1731 | inode->i_blocks = body->blocks; | |
1732 | } | |
1733 | ||
1734 | if (body->valid & OBD_MD_FLMDSCAPA) { | |
1735 | LASSERT(md->mds_capa); | |
1736 | ll_add_capa(inode, md->mds_capa); | |
1737 | } | |
1738 | if (body->valid & OBD_MD_FLOSSCAPA) { | |
1739 | LASSERT(md->oss_capa); | |
1740 | ll_add_capa(inode, md->oss_capa); | |
1741 | } | |
5ea17d6c JL |
1742 | |
1743 | if (body->valid & OBD_MD_TSTATE) { | |
1744 | if (body->t_state & MS_RESTORE) | |
1745 | lli->lli_flags |= LLIF_FILE_RESTORING; | |
1746 | } | |
d7e09d03 PT |
1747 | } |
1748 | ||
1749 | void ll_read_inode2(struct inode *inode, void *opaque) | |
1750 | { | |
1751 | struct lustre_md *md = opaque; | |
1752 | struct ll_inode_info *lli = ll_i2info(inode); | |
d7e09d03 PT |
1753 | |
1754 | CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n", | |
1755 | PFID(&lli->lli_fid), inode); | |
1756 | ||
1757 | LASSERT(!lli->lli_has_smd); | |
1758 | ||
1759 | /* Core attributes from the MDS first. This is a new inode, and | |
1760 | * the VFS doesn't zero times in the core inode so we have to do | |
1761 | * it ourselves. They will be overwritten by either MDS or OST | |
1762 | * attributes - we just need to make sure they aren't newer. */ | |
1763 | LTIME_S(inode->i_mtime) = 0; | |
1764 | LTIME_S(inode->i_atime) = 0; | |
1765 | LTIME_S(inode->i_ctime) = 0; | |
1766 | inode->i_rdev = 0; | |
1767 | ll_update_inode(inode, md); | |
1768 | ||
1769 | /* OIDEBUG(inode); */ | |
1770 | ||
d7e09d03 PT |
1771 | if (S_ISREG(inode->i_mode)) { |
1772 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
cf29a7b6 | 1773 | |
d7e09d03 PT |
1774 | inode->i_op = &ll_file_inode_operations; |
1775 | inode->i_fop = sbi->ll_fop; | |
1776 | inode->i_mapping->a_ops = (struct address_space_operations *)&ll_aops; | |
d7e09d03 PT |
1777 | } else if (S_ISDIR(inode->i_mode)) { |
1778 | inode->i_op = &ll_dir_inode_operations; | |
1779 | inode->i_fop = &ll_dir_operations; | |
d7e09d03 PT |
1780 | } else if (S_ISLNK(inode->i_mode)) { |
1781 | inode->i_op = &ll_fast_symlink_inode_operations; | |
d7e09d03 PT |
1782 | } else { |
1783 | inode->i_op = &ll_special_inode_operations; | |
1784 | ||
1785 | init_special_inode(inode, inode->i_mode, | |
1786 | inode->i_rdev); | |
d7e09d03 PT |
1787 | } |
1788 | } | |
1789 | ||
1790 | void ll_delete_inode(struct inode *inode) | |
1791 | { | |
1792 | struct cl_inode_info *lli = cl_i2info(inode); | |
d7e09d03 PT |
1793 | |
1794 | if (S_ISREG(inode->i_mode) && lli->lli_clob != NULL) | |
1795 | /* discard all dirty pages before truncating them, required by | |
1796 | * osc_extent implementation at LU-1030. */ | |
65fb55d1 NY |
1797 | cl_sync_file_range(inode, 0, OBD_OBJECT_EOF, |
1798 | CL_FSYNC_DISCARD, 1); | |
d7e09d03 | 1799 | |
91b0abe3 | 1800 | truncate_inode_pages_final(&inode->i_data); |
d7e09d03 PT |
1801 | |
1802 | /* Workaround for LU-118 */ | |
1803 | if (inode->i_data.nrpages) { | |
c4226c54 VT |
1804 | spin_lock_irq(&inode->i_data.tree_lock); |
1805 | spin_unlock_irq(&inode->i_data.tree_lock); | |
d7e09d03 | 1806 | LASSERTF(inode->i_data.nrpages == 0, |
2d00bd17 | 1807 | "inode=%lu/%u(%p) nrpages=%lu, see http://jira.whamcloud.com/browse/LU-118\n", |
d7e09d03 PT |
1808 | inode->i_ino, inode->i_generation, inode, |
1809 | inode->i_data.nrpages); | |
1810 | } | |
1811 | /* Workaround end */ | |
1812 | ||
1813 | ll_clear_inode(inode); | |
1814 | clear_inode(inode); | |
d7e09d03 PT |
1815 | } |
1816 | ||
1817 | int ll_iocontrol(struct inode *inode, struct file *file, | |
1818 | unsigned int cmd, unsigned long arg) | |
1819 | { | |
1820 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
1821 | struct ptlrpc_request *req = NULL; | |
1822 | int rc, flags = 0; | |
d7e09d03 | 1823 | |
a58a38ac | 1824 | switch (cmd) { |
d7e09d03 PT |
1825 | case FSFILT_IOC_GETFLAGS: { |
1826 | struct mdt_body *body; | |
1827 | struct md_op_data *op_data; | |
1828 | ||
1829 | op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, | |
1830 | 0, 0, LUSTRE_OPC_ANY, | |
1831 | NULL); | |
1832 | if (IS_ERR(op_data)) | |
0a3bdb00 | 1833 | return PTR_ERR(op_data); |
d7e09d03 PT |
1834 | |
1835 | op_data->op_valid = OBD_MD_FLFLAGS; | |
1836 | rc = md_getattr(sbi->ll_md_exp, op_data, &req); | |
1837 | ll_finish_md_op_data(op_data); | |
1838 | if (rc) { | |
1839 | CERROR("failure %d inode %lu\n", rc, inode->i_ino); | |
0a3bdb00 | 1840 | return -abs(rc); |
d7e09d03 PT |
1841 | } |
1842 | ||
1843 | body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); | |
1844 | ||
1845 | flags = body->flags; | |
1846 | ||
1847 | ptlrpc_req_finished(req); | |
1848 | ||
0a3bdb00 | 1849 | return put_user(flags, (int *)arg); |
d7e09d03 PT |
1850 | } |
1851 | case FSFILT_IOC_SETFLAGS: { | |
1852 | struct lov_stripe_md *lsm; | |
1853 | struct obd_info oinfo = { { { 0 } } }; | |
1854 | struct md_op_data *op_data; | |
1855 | ||
1856 | if (get_user(flags, (int *)arg)) | |
0a3bdb00 | 1857 | return -EFAULT; |
d7e09d03 PT |
1858 | |
1859 | op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0, | |
1860 | LUSTRE_OPC_ANY, NULL); | |
1861 | if (IS_ERR(op_data)) | |
0a3bdb00 | 1862 | return PTR_ERR(op_data); |
d7e09d03 PT |
1863 | |
1864 | ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags = flags; | |
1865 | op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG; | |
1866 | rc = md_setattr(sbi->ll_md_exp, op_data, | |
1867 | NULL, 0, NULL, 0, &req, NULL); | |
1868 | ll_finish_md_op_data(op_data); | |
1869 | ptlrpc_req_finished(req); | |
1870 | if (rc) | |
0a3bdb00 | 1871 | return rc; |
d7e09d03 PT |
1872 | |
1873 | inode->i_flags = ll_ext_to_inode_flags(flags); | |
1874 | ||
1875 | lsm = ccc_inode_lsm_get(inode); | |
5dd16419 JX |
1876 | if (!lsm_has_objects(lsm)) { |
1877 | ccc_inode_lsm_put(inode, lsm); | |
0a3bdb00 | 1878 | return 0; |
5dd16419 | 1879 | } |
d7e09d03 PT |
1880 | |
1881 | OBDO_ALLOC(oinfo.oi_oa); | |
1882 | if (!oinfo.oi_oa) { | |
1883 | ccc_inode_lsm_put(inode, lsm); | |
0a3bdb00 | 1884 | return -ENOMEM; |
d7e09d03 PT |
1885 | } |
1886 | oinfo.oi_md = lsm; | |
1887 | oinfo.oi_oa->o_oi = lsm->lsm_oi; | |
1888 | oinfo.oi_oa->o_flags = flags; | |
1889 | oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS | | |
1890 | OBD_MD_FLGROUP; | |
1891 | oinfo.oi_capa = ll_mdscapa_get(inode); | |
1892 | obdo_set_parent_fid(oinfo.oi_oa, &ll_i2info(inode)->lli_fid); | |
1893 | rc = obd_setattr_rqset(sbi->ll_dt_exp, &oinfo, NULL); | |
1894 | capa_put(oinfo.oi_capa); | |
1895 | OBDO_FREE(oinfo.oi_oa); | |
1896 | ccc_inode_lsm_put(inode, lsm); | |
1897 | ||
1898 | if (rc && rc != -EPERM && rc != -EACCES) | |
1899 | CERROR("osc_setattr_async fails: rc = %d\n", rc); | |
1900 | ||
0a3bdb00 | 1901 | return rc; |
d7e09d03 PT |
1902 | } |
1903 | default: | |
0a3bdb00 | 1904 | return -ENOSYS; |
d7e09d03 PT |
1905 | } |
1906 | ||
0a3bdb00 | 1907 | return 0; |
d7e09d03 PT |
1908 | } |
1909 | ||
1910 | int ll_flush_ctx(struct inode *inode) | |
1911 | { | |
1912 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
1913 | ||
4b1a25f0 PT |
1914 | CDEBUG(D_SEC, "flush context for user %d\n", |
1915 | from_kuid(&init_user_ns, current_uid())); | |
d7e09d03 PT |
1916 | |
1917 | obd_set_info_async(NULL, sbi->ll_md_exp, | |
1918 | sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX, | |
1919 | 0, NULL, NULL); | |
1920 | obd_set_info_async(NULL, sbi->ll_dt_exp, | |
1921 | sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX, | |
1922 | 0, NULL, NULL); | |
1923 | return 0; | |
1924 | } | |
1925 | ||
1926 | /* umount -f client means force down, don't save state */ | |
1927 | void ll_umount_begin(struct super_block *sb) | |
1928 | { | |
1929 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
1930 | struct obd_device *obd; | |
1931 | struct obd_ioctl_data *ioc_data; | |
d7e09d03 PT |
1932 | |
1933 | CDEBUG(D_VFSTRACE, "VFS Op: superblock %p count %d active %d\n", sb, | |
1934 | sb->s_count, atomic_read(&sb->s_active)); | |
1935 | ||
1936 | obd = class_exp2obd(sbi->ll_md_exp); | |
1937 | if (obd == NULL) { | |
55f5a824 | 1938 | CERROR("Invalid MDC connection handle %#llx\n", |
d7e09d03 | 1939 | sbi->ll_md_exp->exp_handle.h_cookie); |
d7e09d03 PT |
1940 | return; |
1941 | } | |
1942 | obd->obd_force = 1; | |
1943 | ||
1944 | obd = class_exp2obd(sbi->ll_dt_exp); | |
1945 | if (obd == NULL) { | |
55f5a824 | 1946 | CERROR("Invalid LOV connection handle %#llx\n", |
d7e09d03 | 1947 | sbi->ll_dt_exp->exp_handle.h_cookie); |
d7e09d03 PT |
1948 | return; |
1949 | } | |
1950 | obd->obd_force = 1; | |
1951 | ||
496a51bd | 1952 | ioc_data = kzalloc(sizeof(*ioc_data), GFP_NOFS); |
d7e09d03 PT |
1953 | if (ioc_data) { |
1954 | obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_md_exp, | |
ec83e611 | 1955 | sizeof(*ioc_data), ioc_data, NULL); |
d7e09d03 PT |
1956 | |
1957 | obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_dt_exp, | |
ec83e611 | 1958 | sizeof(*ioc_data), ioc_data, NULL); |
d7e09d03 PT |
1959 | |
1960 | OBD_FREE_PTR(ioc_data); | |
1961 | } | |
1962 | ||
d7e09d03 PT |
1963 | /* Really, we'd like to wait until there are no requests outstanding, |
1964 | * and then continue. For now, we just invalidate the requests, | |
1965 | * schedule() and sleep one second if needed, and hope. | |
1966 | */ | |
1967 | schedule(); | |
d7e09d03 PT |
1968 | } |
1969 | ||
1970 | int ll_remount_fs(struct super_block *sb, int *flags, char *data) | |
1971 | { | |
1972 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
1973 | char *profilenm = get_profile_name(sb); | |
1974 | int err; | |
1975 | __u32 read_only; | |
1976 | ||
1977 | if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { | |
1978 | read_only = *flags & MS_RDONLY; | |
1979 | err = obd_set_info_async(NULL, sbi->ll_md_exp, | |
1980 | sizeof(KEY_READ_ONLY), | |
1981 | KEY_READ_ONLY, sizeof(read_only), | |
1982 | &read_only, NULL); | |
1983 | if (err) { | |
1984 | LCONSOLE_WARN("Failed to remount %s %s (%d)\n", | |
1985 | profilenm, read_only ? | |
1986 | "read-only" : "read-write", err); | |
1987 | return err; | |
1988 | } | |
1989 | ||
1990 | if (read_only) | |
1991 | sb->s_flags |= MS_RDONLY; | |
1992 | else | |
1993 | sb->s_flags &= ~MS_RDONLY; | |
1994 | ||
1995 | if (sbi->ll_flags & LL_SBI_VERBOSE) | |
1996 | LCONSOLE_WARN("Remounted %s %s\n", profilenm, | |
1997 | read_only ? "read-only" : "read-write"); | |
1998 | } | |
1999 | return 0; | |
2000 | } | |
2001 | ||
2002 | int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req, | |
2003 | struct super_block *sb, struct lookup_intent *it) | |
2004 | { | |
2005 | struct ll_sb_info *sbi = NULL; | |
2006 | struct lustre_md md; | |
2007 | int rc; | |
d7e09d03 PT |
2008 | |
2009 | LASSERT(*inode || sb); | |
2010 | sbi = sb ? ll_s2sbi(sb) : ll_i2sbi(*inode); | |
2011 | rc = md_get_lustre_md(sbi->ll_md_exp, req, sbi->ll_dt_exp, | |
2012 | sbi->ll_md_exp, &md); | |
2013 | if (rc) | |
0a3bdb00 | 2014 | return rc; |
d7e09d03 PT |
2015 | |
2016 | if (*inode) { | |
2017 | ll_update_inode(*inode, &md); | |
2018 | } else { | |
2019 | LASSERT(sb != NULL); | |
2020 | ||
2021 | /* | |
2022 | * At this point server returns to client's same fid as client | |
2023 | * generated for creating. So using ->fid1 is okay here. | |
2024 | */ | |
2025 | LASSERT(fid_is_sane(&md.body->fid1)); | |
2026 | ||
2027 | *inode = ll_iget(sb, cl_fid_build_ino(&md.body->fid1, | |
c1e2699d | 2028 | sbi->ll_flags & LL_SBI_32BIT_API), |
d7e09d03 PT |
2029 | &md); |
2030 | if (*inode == NULL || IS_ERR(*inode)) { | |
2031 | #ifdef CONFIG_FS_POSIX_ACL | |
2032 | if (md.posix_acl) { | |
2033 | posix_acl_release(md.posix_acl); | |
2034 | md.posix_acl = NULL; | |
2035 | } | |
2036 | #endif | |
2037 | rc = IS_ERR(*inode) ? PTR_ERR(*inode) : -ENOMEM; | |
2038 | *inode = NULL; | |
2039 | CERROR("new_inode -fatal: rc %d\n", rc); | |
34e1f2bb | 2040 | goto out; |
d7e09d03 PT |
2041 | } |
2042 | } | |
2043 | ||
2044 | /* Handling piggyback layout lock. | |
2045 | * Layout lock can be piggybacked by getattr and open request. | |
2046 | * The lsm can be applied to inode only if it comes with a layout lock | |
2047 | * otherwise correct layout may be overwritten, for example: | |
2048 | * 1. proc1: mdt returns a lsm but not granting layout | |
2049 | * 2. layout was changed by another client | |
2050 | * 3. proc2: refresh layout and layout lock granted | |
2051 | * 4. proc1: to apply a stale layout */ | |
2052 | if (it != NULL && it->d.lustre.it_lock_mode != 0) { | |
2053 | struct lustre_handle lockh; | |
2054 | struct ldlm_lock *lock; | |
2055 | ||
2056 | lockh.cookie = it->d.lustre.it_lock_handle; | |
2057 | lock = ldlm_handle2lock(&lockh); | |
2058 | LASSERT(lock != NULL); | |
2059 | if (ldlm_has_layout(lock)) { | |
2060 | struct cl_object_conf conf; | |
2061 | ||
2062 | memset(&conf, 0, sizeof(conf)); | |
2063 | conf.coc_opc = OBJECT_CONF_SET; | |
2064 | conf.coc_inode = *inode; | |
2065 | conf.coc_lock = lock; | |
2066 | conf.u.coc_md = &md; | |
2067 | (void)ll_layout_conf(*inode, &conf); | |
2068 | } | |
2069 | LDLM_LOCK_PUT(lock); | |
2070 | } | |
2071 | ||
2072 | out: | |
2073 | if (md.lsm != NULL) | |
2074 | obd_free_memmd(sbi->ll_dt_exp, &md.lsm); | |
2075 | md_free_lustre_md(sbi->ll_md_exp, &md); | |
0a3bdb00 | 2076 | return rc; |
d7e09d03 PT |
2077 | } |
2078 | ||
2079 | int ll_obd_statfs(struct inode *inode, void *arg) | |
2080 | { | |
2081 | struct ll_sb_info *sbi = NULL; | |
2082 | struct obd_export *exp; | |
2083 | char *buf = NULL; | |
2084 | struct obd_ioctl_data *data = NULL; | |
2085 | __u32 type; | |
2086 | __u32 flags; | |
2087 | int len = 0, rc; | |
2088 | ||
c650ba73 TR |
2089 | if (!inode) { |
2090 | rc = -EINVAL; | |
2091 | goto out_statfs; | |
2092 | } | |
2093 | ||
2094 | sbi = ll_i2sbi(inode); | |
2095 | if (!sbi) { | |
34e1f2bb JL |
2096 | rc = -EINVAL; |
2097 | goto out_statfs; | |
2098 | } | |
d7e09d03 PT |
2099 | |
2100 | rc = obd_ioctl_getdata(&buf, &len, arg); | |
2101 | if (rc) | |
34e1f2bb | 2102 | goto out_statfs; |
d7e09d03 | 2103 | |
bdbb0512 | 2104 | data = (void *)buf; |
d7e09d03 | 2105 | if (!data->ioc_inlbuf1 || !data->ioc_inlbuf2 || |
34e1f2bb JL |
2106 | !data->ioc_pbuf1 || !data->ioc_pbuf2) { |
2107 | rc = -EINVAL; | |
2108 | goto out_statfs; | |
2109 | } | |
d7e09d03 PT |
2110 | |
2111 | if (data->ioc_inllen1 != sizeof(__u32) || | |
2112 | data->ioc_inllen2 != sizeof(__u32) || | |
2113 | data->ioc_plen1 != sizeof(struct obd_statfs) || | |
34e1f2bb JL |
2114 | data->ioc_plen2 != sizeof(struct obd_uuid)) { |
2115 | rc = -EINVAL; | |
2116 | goto out_statfs; | |
2117 | } | |
d7e09d03 PT |
2118 | |
2119 | memcpy(&type, data->ioc_inlbuf1, sizeof(__u32)); | |
2120 | if (type & LL_STATFS_LMV) | |
2121 | exp = sbi->ll_md_exp; | |
2122 | else if (type & LL_STATFS_LOV) | |
2123 | exp = sbi->ll_dt_exp; | |
34e1f2bb JL |
2124 | else { |
2125 | rc = -ENODEV; | |
2126 | goto out_statfs; | |
2127 | } | |
d7e09d03 PT |
2128 | |
2129 | flags = (type & LL_STATFS_NODELAY) ? OBD_STATFS_NODELAY : 0; | |
2130 | rc = obd_iocontrol(IOC_OBD_STATFS, exp, len, buf, &flags); | |
2131 | if (rc) | |
34e1f2bb | 2132 | goto out_statfs; |
d7e09d03 PT |
2133 | out_statfs: |
2134 | if (buf) | |
2135 | obd_ioctl_freedata(buf, len); | |
2136 | return rc; | |
2137 | } | |
2138 | ||
2139 | int ll_process_config(struct lustre_cfg *lcfg) | |
2140 | { | |
2141 | char *ptr; | |
2142 | void *sb; | |
2143 | struct lprocfs_static_vars lvars; | |
2144 | unsigned long x; | |
2145 | int rc = 0; | |
2146 | ||
2147 | lprocfs_llite_init_vars(&lvars); | |
2148 | ||
2149 | /* The instance name contains the sb: lustre-client-aacfe000 */ | |
2150 | ptr = strrchr(lustre_cfg_string(lcfg, 0), '-'); | |
2151 | if (!ptr || !*(++ptr)) | |
2152 | return -EINVAL; | |
692f2b6c | 2153 | rc = kstrtoul(ptr, 16, &x); |
2154 | if (rc != 0) | |
d7e09d03 PT |
2155 | return -EINVAL; |
2156 | sb = (void *)x; | |
2157 | /* This better be a real Lustre superblock! */ | |
2158 | LASSERT(s2lsi((struct super_block *)sb)->lsi_lmd->lmd_magic == LMD_MAGIC); | |
2159 | ||
2160 | /* Note we have not called client_common_fill_super yet, so | |
2161 | proc fns must be able to handle that! */ | |
2162 | rc = class_process_proc_param(PARAM_LLITE, lvars.obd_vars, | |
2163 | lcfg, sb); | |
2164 | if (rc > 0) | |
2165 | rc = 0; | |
fbe7c6c7 | 2166 | return rc; |
d7e09d03 PT |
2167 | } |
2168 | ||
2169 | /* this function prepares md_op_data hint for passing ot down to MD stack. */ | |
aff9d8e8 | 2170 | struct md_op_data *ll_prep_md_op_data(struct md_op_data *op_data, |
d7e09d03 PT |
2171 | struct inode *i1, struct inode *i2, |
2172 | const char *name, int namelen, | |
2173 | int mode, __u32 opc, void *data) | |
2174 | { | |
2175 | LASSERT(i1 != NULL); | |
2176 | ||
2177 | if (namelen > ll_i2sbi(i1)->ll_namelen) | |
2178 | return ERR_PTR(-ENAMETOOLONG); | |
2179 | ||
2180 | if (op_data == NULL) | |
496a51bd | 2181 | op_data = kzalloc(sizeof(*op_data), GFP_NOFS); |
d7e09d03 PT |
2182 | |
2183 | if (op_data == NULL) | |
2184 | return ERR_PTR(-ENOMEM); | |
2185 | ||
2186 | ll_i2gids(op_data->op_suppgids, i1, i2); | |
2187 | op_data->op_fid1 = *ll_inode2fid(i1); | |
2188 | op_data->op_capa1 = ll_mdscapa_get(i1); | |
2189 | ||
2190 | if (i2) { | |
2191 | op_data->op_fid2 = *ll_inode2fid(i2); | |
2192 | op_data->op_capa2 = ll_mdscapa_get(i2); | |
2193 | } else { | |
2194 | fid_zero(&op_data->op_fid2); | |
2195 | op_data->op_capa2 = NULL; | |
2196 | } | |
2197 | ||
2198 | op_data->op_name = name; | |
2199 | op_data->op_namelen = namelen; | |
2200 | op_data->op_mode = mode; | |
7264b8a5 | 2201 | op_data->op_mod_time = get_seconds(); |
4b1a25f0 PT |
2202 | op_data->op_fsuid = from_kuid(&init_user_ns, current_fsuid()); |
2203 | op_data->op_fsgid = from_kgid(&init_user_ns, current_fsgid()); | |
d7e09d03 PT |
2204 | op_data->op_cap = cfs_curproc_cap_pack(); |
2205 | op_data->op_bias = 0; | |
2206 | op_data->op_cli_flags = 0; | |
2207 | if ((opc == LUSTRE_OPC_CREATE) && (name != NULL) && | |
2208 | filename_is_volatile(name, namelen, NULL)) | |
2209 | op_data->op_bias |= MDS_CREATE_VOLATILE; | |
2210 | op_data->op_opc = opc; | |
2211 | op_data->op_mds = 0; | |
2212 | op_data->op_data = data; | |
2213 | ||
2214 | /* If the file is being opened after mknod() (normally due to NFS) | |
2215 | * try to use the default stripe data from parent directory for | |
2216 | * allocating OST objects. Try to pass the parent FID to MDS. */ | |
2217 | if (opc == LUSTRE_OPC_CREATE && i1 == i2 && S_ISREG(i2->i_mode) && | |
2218 | !ll_i2info(i2)->lli_has_smd) { | |
2219 | struct ll_inode_info *lli = ll_i2info(i2); | |
2220 | ||
2221 | spin_lock(&lli->lli_lock); | |
2222 | if (likely(!lli->lli_has_smd && !fid_is_zero(&lli->lli_pfid))) | |
2223 | op_data->op_fid1 = lli->lli_pfid; | |
2224 | spin_unlock(&lli->lli_lock); | |
2225 | /** We ignore parent's capability temporary. */ | |
2226 | } | |
2227 | ||
2228 | /* When called by ll_setattr_raw, file is i1. */ | |
2229 | if (LLIF_DATA_MODIFIED & ll_i2info(i1)->lli_flags) | |
2230 | op_data->op_bias |= MDS_DATA_MODIFIED; | |
2231 | ||
2232 | return op_data; | |
2233 | } | |
2234 | ||
2235 | void ll_finish_md_op_data(struct md_op_data *op_data) | |
2236 | { | |
2237 | capa_put(op_data->op_capa1); | |
2238 | capa_put(op_data->op_capa2); | |
2239 | OBD_FREE_PTR(op_data); | |
2240 | } | |
2241 | ||
2242 | int ll_show_options(struct seq_file *seq, struct dentry *dentry) | |
2243 | { | |
2244 | struct ll_sb_info *sbi; | |
2245 | ||
2246 | LASSERT((seq != NULL) && (dentry != NULL)); | |
2247 | sbi = ll_s2sbi(dentry->d_sb); | |
2248 | ||
2249 | if (sbi->ll_flags & LL_SBI_NOLCK) | |
2250 | seq_puts(seq, ",nolock"); | |
2251 | ||
2252 | if (sbi->ll_flags & LL_SBI_FLOCK) | |
2253 | seq_puts(seq, ",flock"); | |
2254 | ||
2255 | if (sbi->ll_flags & LL_SBI_LOCALFLOCK) | |
2256 | seq_puts(seq, ",localflock"); | |
2257 | ||
2258 | if (sbi->ll_flags & LL_SBI_USER_XATTR) | |
2259 | seq_puts(seq, ",user_xattr"); | |
2260 | ||
2261 | if (sbi->ll_flags & LL_SBI_LAZYSTATFS) | |
2262 | seq_puts(seq, ",lazystatfs"); | |
2263 | ||
2264 | if (sbi->ll_flags & LL_SBI_USER_FID2PATH) | |
2265 | seq_puts(seq, ",user_fid2path"); | |
2266 | ||
0a3bdb00 | 2267 | return 0; |
d7e09d03 PT |
2268 | } |
2269 | ||
2270 | /** | |
2271 | * Get obd name by cmd, and copy out to user space | |
2272 | */ | |
2273 | int ll_get_obd_name(struct inode *inode, unsigned int cmd, unsigned long arg) | |
2274 | { | |
2275 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
2276 | struct obd_device *obd; | |
d7e09d03 PT |
2277 | |
2278 | if (cmd == OBD_IOC_GETDTNAME) | |
2279 | obd = class_exp2obd(sbi->ll_dt_exp); | |
2280 | else if (cmd == OBD_IOC_GETMDNAME) | |
2281 | obd = class_exp2obd(sbi->ll_md_exp); | |
2282 | else | |
0a3bdb00 | 2283 | return -EINVAL; |
d7e09d03 PT |
2284 | |
2285 | if (!obd) | |
0a3bdb00 | 2286 | return -ENOENT; |
d7e09d03 PT |
2287 | |
2288 | if (copy_to_user((void *)arg, obd->obd_name, | |
2289 | strlen(obd->obd_name) + 1)) | |
0a3bdb00 | 2290 | return -EFAULT; |
d7e09d03 | 2291 | |
0a3bdb00 | 2292 | return 0; |
d7e09d03 PT |
2293 | } |
2294 | ||
2295 | /** | |
2296 | * Get lustre file system name by \a sbi. If \a buf is provided(non-NULL), the | |
2297 | * fsname will be returned in this buffer; otherwise, a static buffer will be | |
2298 | * used to store the fsname and returned to caller. | |
2299 | */ | |
2300 | char *ll_get_fsname(struct super_block *sb, char *buf, int buflen) | |
2301 | { | |
2302 | static char fsname_static[MTI_NAME_MAXLEN]; | |
2303 | struct lustre_sb_info *lsi = s2lsi(sb); | |
2304 | char *ptr; | |
2305 | int len; | |
2306 | ||
2307 | if (buf == NULL) { | |
2308 | /* this means the caller wants to use static buffer | |
2309 | * and it doesn't care about race. Usually this is | |
2310 | * in error reporting path */ | |
2311 | buf = fsname_static; | |
2312 | buflen = sizeof(fsname_static); | |
2313 | } | |
2314 | ||
2315 | len = strlen(lsi->lsi_lmd->lmd_profile); | |
2316 | ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-'); | |
2317 | if (ptr && (strcmp(ptr, "-client") == 0)) | |
2318 | len -= 7; | |
2319 | ||
2320 | if (unlikely(len >= buflen)) | |
2321 | len = buflen - 1; | |
2322 | strncpy(buf, lsi->lsi_lmd->lmd_profile, len); | |
2323 | buf[len] = '\0'; | |
2324 | ||
2325 | return buf; | |
2326 | } | |
2327 | ||
d7e09d03 PT |
2328 | void ll_dirty_page_discard_warn(struct page *page, int ioret) |
2329 | { | |
2330 | char *buf, *path = NULL; | |
2331 | struct dentry *dentry = NULL; | |
2332 | struct ccc_object *obj = cl_inode2ccc(page->mapping->host); | |
2333 | ||
2334 | /* this can be called inside spin lock so use GFP_ATOMIC. */ | |
2335 | buf = (char *)__get_free_page(GFP_ATOMIC); | |
2336 | if (buf != NULL) { | |
2337 | dentry = d_find_alias(page->mapping->host); | |
2338 | if (dentry != NULL) | |
1ad581eb | 2339 | path = dentry_path_raw(dentry, buf, PAGE_SIZE); |
d7e09d03 PT |
2340 | } |
2341 | ||
73b89907 | 2342 | CDEBUG(D_WARNING, |
2d00bd17 JP |
2343 | "%s: dirty page discard: %s/fid: " DFID "/%s may get corrupted (rc %d)\n", |
2344 | ll_get_fsname(page->mapping->host->i_sb, NULL, 0), | |
73b89907 RH |
2345 | s2lsi(page->mapping->host->i_sb)->lsi_lmd->lmd_dev, |
2346 | PFID(&obj->cob_header.coh_lu.loh_fid), | |
2347 | (path && !IS_ERR(path)) ? path : "", ioret); | |
d7e09d03 PT |
2348 | |
2349 | if (dentry != NULL) | |
2350 | dput(dentry); | |
2351 | ||
2352 | if (buf != NULL) | |
2353 | free_page((unsigned long)buf); | |
2354 | } |