Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
4ce3121f NS |
2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
4ce3121f NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
4ce3121f NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
1da177e4 | 13 | * |
4ce3121f NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
1da177e4 | 17 | */ |
1da177e4 LT |
18 | #include "xfs.h" |
19 | #include "xfs_fs.h" | |
a4fbe6ab | 20 | #include "xfs_shared.h" |
6ca1c906 | 21 | #include "xfs_format.h" |
239880ef | 22 | #include "xfs_log_format.h" |
239880ef | 23 | #include "xfs_trans_resv.h" |
a844f451 | 24 | #include "xfs_bit.h" |
1da177e4 | 25 | #include "xfs_sb.h" |
1da177e4 | 26 | #include "xfs_mount.h" |
1da177e4 | 27 | #include "xfs_inode.h" |
a844f451 NS |
28 | #include "xfs_ialloc.h" |
29 | #include "xfs_itable.h" | |
239880ef | 30 | #include "xfs_quota.h" |
1da177e4 | 31 | #include "xfs_error.h" |
a844f451 | 32 | #include "xfs_bmap.h" |
a4fbe6ab | 33 | #include "xfs_bmap_btree.h" |
239880ef | 34 | #include "xfs_trans.h" |
1da177e4 | 35 | #include "xfs_trans_space.h" |
1da177e4 | 36 | #include "xfs_qm.h" |
0b1b213f | 37 | #include "xfs_trace.h" |
33479e05 | 38 | #include "xfs_icache.h" |
6fcdc59d | 39 | #include "xfs_cksum.h" |
1da177e4 LT |
40 | |
41 | /* | |
42 | * The global quota manager. There is only one of these for the entire | |
43 | * system, _not_ one per file system. XQM keeps track of the overall | |
44 | * quota functionality, including maintaining the freelist and hash | |
45 | * tables of dquots. | |
46 | */ | |
1da177e4 | 47 | STATIC int xfs_qm_init_quotainos(xfs_mount_t *); |
ba0f32d4 | 48 | STATIC int xfs_qm_init_quotainfo(xfs_mount_t *); |
1da177e4 | 49 | |
cd56a39a DC |
50 | |
51 | STATIC void xfs_qm_dqfree_one(struct xfs_dquot *dqp); | |
b84a3a96 CH |
52 | /* |
53 | * We use the batch lookup interface to iterate over the dquots as it | |
54 | * currently is the only interface into the radix tree code that allows | |
55 | * fuzzy lookups instead of exact matches. Holding the lock over multiple | |
56 | * operations is fine as all callers are used either during mount/umount | |
57 | * or quotaoff. | |
58 | */ | |
59 | #define XFS_DQ_LOOKUP_BATCH 32 | |
60 | ||
61 | STATIC int | |
62 | xfs_qm_dquot_walk( | |
63 | struct xfs_mount *mp, | |
64 | int type, | |
43ff2122 CH |
65 | int (*execute)(struct xfs_dquot *dqp, void *data), |
66 | void *data) | |
b84a3a96 CH |
67 | { |
68 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
329e0875 | 69 | struct radix_tree_root *tree = xfs_dquot_tree(qi, type); |
b84a3a96 CH |
70 | uint32_t next_index; |
71 | int last_error = 0; | |
72 | int skipped; | |
73 | int nr_found; | |
74 | ||
75 | restart: | |
76 | skipped = 0; | |
77 | next_index = 0; | |
78 | nr_found = 0; | |
79 | ||
80 | while (1) { | |
81 | struct xfs_dquot *batch[XFS_DQ_LOOKUP_BATCH]; | |
82 | int error = 0; | |
83 | int i; | |
84 | ||
85 | mutex_lock(&qi->qi_tree_lock); | |
86 | nr_found = radix_tree_gang_lookup(tree, (void **)batch, | |
87 | next_index, XFS_DQ_LOOKUP_BATCH); | |
88 | if (!nr_found) { | |
89 | mutex_unlock(&qi->qi_tree_lock); | |
90 | break; | |
91 | } | |
92 | ||
93 | for (i = 0; i < nr_found; i++) { | |
94 | struct xfs_dquot *dqp = batch[i]; | |
95 | ||
96 | next_index = be32_to_cpu(dqp->q_core.d_id) + 1; | |
97 | ||
43ff2122 | 98 | error = execute(batch[i], data); |
2451337d | 99 | if (error == -EAGAIN) { |
b84a3a96 CH |
100 | skipped++; |
101 | continue; | |
102 | } | |
2451337d | 103 | if (error && last_error != -EFSCORRUPTED) |
b84a3a96 CH |
104 | last_error = error; |
105 | } | |
106 | ||
107 | mutex_unlock(&qi->qi_tree_lock); | |
108 | ||
109 | /* bail out if the filesystem is corrupted. */ | |
2451337d | 110 | if (last_error == -EFSCORRUPTED) { |
b84a3a96 CH |
111 | skipped = 0; |
112 | break; | |
113 | } | |
114 | } | |
115 | ||
116 | if (skipped) { | |
117 | delay(1); | |
118 | goto restart; | |
119 | } | |
120 | ||
121 | return last_error; | |
122 | } | |
123 | ||
124 | ||
125 | /* | |
126 | * Purge a dquot from all tracking data structures and free it. | |
127 | */ | |
128 | STATIC int | |
129 | xfs_qm_dqpurge( | |
43ff2122 CH |
130 | struct xfs_dquot *dqp, |
131 | void *data) | |
b84a3a96 CH |
132 | { |
133 | struct xfs_mount *mp = dqp->q_mount; | |
134 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
b84a3a96 CH |
135 | |
136 | xfs_dqlock(dqp); | |
137 | if ((dqp->dq_flags & XFS_DQ_FREEING) || dqp->q_nrefs != 0) { | |
138 | xfs_dqunlock(dqp); | |
2451337d | 139 | return -EAGAIN; |
b84a3a96 CH |
140 | } |
141 | ||
b84a3a96 CH |
142 | dqp->dq_flags |= XFS_DQ_FREEING; |
143 | ||
43ff2122 | 144 | xfs_dqflock(dqp); |
b84a3a96 CH |
145 | |
146 | /* | |
147 | * If we are turning this type of quotas off, we don't care | |
148 | * about the dirty metadata sitting in this dquot. OTOH, if | |
149 | * we're unmounting, we do care, so we flush it and wait. | |
150 | */ | |
151 | if (XFS_DQ_IS_DIRTY(dqp)) { | |
fe7257fd CH |
152 | struct xfs_buf *bp = NULL; |
153 | int error; | |
b84a3a96 CH |
154 | |
155 | /* | |
156 | * We don't care about getting disk errors here. We need | |
157 | * to purge this dquot anyway, so we go ahead regardless. | |
158 | */ | |
fe7257fd CH |
159 | error = xfs_qm_dqflush(dqp, &bp); |
160 | if (error) { | |
b84a3a96 CH |
161 | xfs_warn(mp, "%s: dquot %p flush failed", |
162 | __func__, dqp); | |
fe7257fd CH |
163 | } else { |
164 | error = xfs_bwrite(bp); | |
165 | xfs_buf_relse(bp); | |
166 | } | |
b84a3a96 CH |
167 | xfs_dqflock(dqp); |
168 | } | |
169 | ||
170 | ASSERT(atomic_read(&dqp->q_pincount) == 0); | |
171 | ASSERT(XFS_FORCED_SHUTDOWN(mp) || | |
172 | !(dqp->q_logitem.qli_item.li_flags & XFS_LI_IN_AIL)); | |
173 | ||
174 | xfs_dqfunlock(dqp); | |
175 | xfs_dqunlock(dqp); | |
176 | ||
329e0875 | 177 | radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags), |
b84a3a96 CH |
178 | be32_to_cpu(dqp->q_core.d_id)); |
179 | qi->qi_dquots--; | |
180 | ||
181 | /* | |
182 | * We move dquots to the freelist as soon as their reference count | |
183 | * hits zero, so it really should be on the freelist here. | |
184 | */ | |
b84a3a96 | 185 | ASSERT(!list_empty(&dqp->q_lru)); |
cd56a39a | 186 | list_lru_del(&qi->qi_lru, &dqp->q_lru); |
b84a3a96 | 187 | XFS_STATS_DEC(xs_qm_dquot_unused); |
b84a3a96 CH |
188 | |
189 | xfs_qm_dqdestroy(dqp); | |
df8052e7 JL |
190 | return 0; |
191 | } | |
192 | ||
b84a3a96 CH |
193 | /* |
194 | * Purge the dquot cache. | |
195 | */ | |
196 | void | |
197 | xfs_qm_dqpurge_all( | |
198 | struct xfs_mount *mp, | |
199 | uint flags) | |
200 | { | |
3c353375 DC |
201 | if (flags & XFS_QMOPT_UQUOTA) |
202 | xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_dqpurge, NULL); | |
b84a3a96 | 203 | if (flags & XFS_QMOPT_GQUOTA) |
43ff2122 | 204 | xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_dqpurge, NULL); |
b84a3a96 | 205 | if (flags & XFS_QMOPT_PQUOTA) |
43ff2122 | 206 | xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_dqpurge, NULL); |
b84a3a96 CH |
207 | } |
208 | ||
1da177e4 LT |
209 | /* |
210 | * Just destroy the quotainfo structure. | |
211 | */ | |
212 | void | |
7d095257 CH |
213 | xfs_qm_unmount( |
214 | struct xfs_mount *mp) | |
1da177e4 | 215 | { |
7d095257 | 216 | if (mp->m_quotainfo) { |
8112e9dc | 217 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
1da177e4 | 218 | xfs_qm_destroy_quotainfo(mp); |
7d095257 | 219 | } |
1da177e4 LT |
220 | } |
221 | ||
1da177e4 LT |
222 | /* |
223 | * Called from the vfsops layer. | |
224 | */ | |
e57481dc | 225 | void |
1da177e4 LT |
226 | xfs_qm_unmount_quotas( |
227 | xfs_mount_t *mp) | |
228 | { | |
1da177e4 LT |
229 | /* |
230 | * Release the dquots that root inode, et al might be holding, | |
231 | * before we flush quotas and blow away the quotainfo structure. | |
232 | */ | |
233 | ASSERT(mp->m_rootip); | |
234 | xfs_qm_dqdetach(mp->m_rootip); | |
235 | if (mp->m_rbmip) | |
236 | xfs_qm_dqdetach(mp->m_rbmip); | |
237 | if (mp->m_rsumip) | |
238 | xfs_qm_dqdetach(mp->m_rsumip); | |
239 | ||
240 | /* | |
e57481dc | 241 | * Release the quota inodes. |
1da177e4 | 242 | */ |
1da177e4 | 243 | if (mp->m_quotainfo) { |
e57481dc CH |
244 | if (mp->m_quotainfo->qi_uquotaip) { |
245 | IRELE(mp->m_quotainfo->qi_uquotaip); | |
246 | mp->m_quotainfo->qi_uquotaip = NULL; | |
1da177e4 | 247 | } |
e57481dc CH |
248 | if (mp->m_quotainfo->qi_gquotaip) { |
249 | IRELE(mp->m_quotainfo->qi_gquotaip); | |
250 | mp->m_quotainfo->qi_gquotaip = NULL; | |
1da177e4 | 251 | } |
92f8ff73 CS |
252 | if (mp->m_quotainfo->qi_pquotaip) { |
253 | IRELE(mp->m_quotainfo->qi_pquotaip); | |
254 | mp->m_quotainfo->qi_pquotaip = NULL; | |
255 | } | |
1da177e4 | 256 | } |
1da177e4 LT |
257 | } |
258 | ||
1da177e4 LT |
259 | STATIC int |
260 | xfs_qm_dqattach_one( | |
261 | xfs_inode_t *ip, | |
262 | xfs_dqid_t id, | |
263 | uint type, | |
264 | uint doalloc, | |
1da177e4 LT |
265 | xfs_dquot_t **IO_idqpp) |
266 | { | |
267 | xfs_dquot_t *dqp; | |
268 | int error; | |
269 | ||
579aa9ca | 270 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 271 | error = 0; |
8e9b6e7f | 272 | |
1da177e4 | 273 | /* |
3c353375 DC |
274 | * See if we already have it in the inode itself. IO_idqpp is &i_udquot |
275 | * or &i_gdquot. This made the code look weird, but made the logic a lot | |
276 | * simpler. | |
1da177e4 | 277 | */ |
8e9b6e7f CH |
278 | dqp = *IO_idqpp; |
279 | if (dqp) { | |
0b1b213f | 280 | trace_xfs_dqattach_found(dqp); |
8e9b6e7f | 281 | return 0; |
1da177e4 LT |
282 | } |
283 | ||
284 | /* | |
3c353375 DC |
285 | * Find the dquot from somewhere. This bumps the reference count of |
286 | * dquot and returns it locked. This can return ENOENT if dquot didn't | |
287 | * exist on disk and we didn't ask it to allocate; ESRCH if quotas got | |
288 | * turned off suddenly. | |
1da177e4 | 289 | */ |
db3e74b5 MH |
290 | error = xfs_qm_dqget(ip->i_mount, ip, id, type, |
291 | doalloc | XFS_QMOPT_DOWARN, &dqp); | |
8e9b6e7f CH |
292 | if (error) |
293 | return error; | |
1da177e4 | 294 | |
0b1b213f | 295 | trace_xfs_dqattach_get(dqp); |
8e9b6e7f | 296 | |
1da177e4 LT |
297 | /* |
298 | * dqget may have dropped and re-acquired the ilock, but it guarantees | |
299 | * that the dquot returned is the one that should go in the inode. | |
300 | */ | |
301 | *IO_idqpp = dqp; | |
8e9b6e7f CH |
302 | xfs_dqunlock(dqp); |
303 | return 0; | |
1da177e4 LT |
304 | } |
305 | ||
b4d05e30 CH |
306 | static bool |
307 | xfs_qm_need_dqattach( | |
308 | struct xfs_inode *ip) | |
309 | { | |
310 | struct xfs_mount *mp = ip->i_mount; | |
311 | ||
312 | if (!XFS_IS_QUOTA_RUNNING(mp)) | |
313 | return false; | |
314 | if (!XFS_IS_QUOTA_ON(mp)) | |
315 | return false; | |
316 | if (!XFS_NOT_DQATTACHED(mp, ip)) | |
317 | return false; | |
9cad19d2 | 318 | if (xfs_is_quota_inode(&mp->m_sb, ip->i_ino)) |
b4d05e30 CH |
319 | return false; |
320 | return true; | |
321 | } | |
1da177e4 LT |
322 | |
323 | /* | |
c8ad20ff NS |
324 | * Given a locked inode, attach dquot(s) to it, taking U/G/P-QUOTAON |
325 | * into account. | |
1da177e4 | 326 | * If XFS_QMOPT_DQALLOC, the dquot(s) will be allocated if needed. |
1da177e4 LT |
327 | * Inode may get unlocked and relocked in here, and the caller must deal with |
328 | * the consequences. | |
329 | */ | |
330 | int | |
7d095257 | 331 | xfs_qm_dqattach_locked( |
1da177e4 LT |
332 | xfs_inode_t *ip, |
333 | uint flags) | |
334 | { | |
335 | xfs_mount_t *mp = ip->i_mount; | |
1da177e4 LT |
336 | int error = 0; |
337 | ||
b4d05e30 | 338 | if (!xfs_qm_need_dqattach(ip)) |
014c2544 | 339 | return 0; |
1da177e4 | 340 | |
7d095257 | 341 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 342 | |
3c353375 | 343 | if (XFS_IS_UQUOTA_ON(mp) && !ip->i_udquot) { |
1da177e4 LT |
344 | error = xfs_qm_dqattach_one(ip, ip->i_d.di_uid, XFS_DQ_USER, |
345 | flags & XFS_QMOPT_DQALLOC, | |
3c353375 | 346 | &ip->i_udquot); |
1da177e4 LT |
347 | if (error) |
348 | goto done; | |
3c353375 | 349 | ASSERT(ip->i_udquot); |
1da177e4 | 350 | } |
579aa9ca | 351 | |
3c353375 | 352 | if (XFS_IS_GQUOTA_ON(mp) && !ip->i_gdquot) { |
92f8ff73 | 353 | error = xfs_qm_dqattach_one(ip, ip->i_d.di_gid, XFS_DQ_GROUP, |
1da177e4 | 354 | flags & XFS_QMOPT_DQALLOC, |
3c353375 | 355 | &ip->i_gdquot); |
1da177e4 LT |
356 | if (error) |
357 | goto done; | |
3c353375 | 358 | ASSERT(ip->i_gdquot); |
1da177e4 LT |
359 | } |
360 | ||
3c353375 | 361 | if (XFS_IS_PQUOTA_ON(mp) && !ip->i_pdquot) { |
92f8ff73 CS |
362 | error = xfs_qm_dqattach_one(ip, xfs_get_projid(ip), XFS_DQ_PROJ, |
363 | flags & XFS_QMOPT_DQALLOC, | |
3c353375 | 364 | &ip->i_pdquot); |
92f8ff73 CS |
365 | if (error) |
366 | goto done; | |
3c353375 | 367 | ASSERT(ip->i_pdquot); |
92f8ff73 CS |
368 | } |
369 | ||
3c353375 | 370 | done: |
1da177e4 | 371 | /* |
3c353375 DC |
372 | * Don't worry about the dquots that we may have attached before any |
373 | * error - they'll get detached later if it has not already been done. | |
1da177e4 | 374 | */ |
7d095257 | 375 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
7d095257 CH |
376 | return error; |
377 | } | |
1da177e4 | 378 | |
7d095257 CH |
379 | int |
380 | xfs_qm_dqattach( | |
381 | struct xfs_inode *ip, | |
382 | uint flags) | |
383 | { | |
384 | int error; | |
385 | ||
b4d05e30 CH |
386 | if (!xfs_qm_need_dqattach(ip)) |
387 | return 0; | |
388 | ||
7d095257 CH |
389 | xfs_ilock(ip, XFS_ILOCK_EXCL); |
390 | error = xfs_qm_dqattach_locked(ip, flags); | |
391 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1da177e4 | 392 | |
014c2544 | 393 | return error; |
1da177e4 LT |
394 | } |
395 | ||
396 | /* | |
397 | * Release dquots (and their references) if any. | |
398 | * The inode should be locked EXCL except when this's called by | |
399 | * xfs_ireclaim. | |
400 | */ | |
401 | void | |
402 | xfs_qm_dqdetach( | |
403 | xfs_inode_t *ip) | |
404 | { | |
92f8ff73 | 405 | if (!(ip->i_udquot || ip->i_gdquot || ip->i_pdquot)) |
1da177e4 LT |
406 | return; |
407 | ||
0b1b213f CH |
408 | trace_xfs_dquot_dqdetach(ip); |
409 | ||
9cad19d2 | 410 | ASSERT(!xfs_is_quota_inode(&ip->i_mount->m_sb, ip->i_ino)); |
1da177e4 LT |
411 | if (ip->i_udquot) { |
412 | xfs_qm_dqrele(ip->i_udquot); | |
413 | ip->i_udquot = NULL; | |
414 | } | |
415 | if (ip->i_gdquot) { | |
416 | xfs_qm_dqrele(ip->i_gdquot); | |
417 | ip->i_gdquot = NULL; | |
418 | } | |
92f8ff73 CS |
419 | if (ip->i_pdquot) { |
420 | xfs_qm_dqrele(ip->i_pdquot); | |
421 | ip->i_pdquot = NULL; | |
422 | } | |
1da177e4 LT |
423 | } |
424 | ||
cd56a39a DC |
425 | struct xfs_qm_isolate { |
426 | struct list_head buffers; | |
427 | struct list_head dispose; | |
428 | }; | |
429 | ||
430 | static enum lru_status | |
431 | xfs_qm_dquot_isolate( | |
432 | struct list_head *item, | |
3f97b163 | 433 | struct list_lru_one *lru, |
cd56a39a DC |
434 | spinlock_t *lru_lock, |
435 | void *arg) | |
bf1ed383 | 436 | __releases(lru_lock) __acquires(lru_lock) |
cd56a39a DC |
437 | { |
438 | struct xfs_dquot *dqp = container_of(item, | |
439 | struct xfs_dquot, q_lru); | |
440 | struct xfs_qm_isolate *isol = arg; | |
441 | ||
442 | if (!xfs_dqlock_nowait(dqp)) | |
443 | goto out_miss_busy; | |
444 | ||
445 | /* | |
446 | * This dquot has acquired a reference in the meantime remove it from | |
447 | * the freelist and try again. | |
448 | */ | |
449 | if (dqp->q_nrefs) { | |
450 | xfs_dqunlock(dqp); | |
451 | XFS_STATS_INC(xs_qm_dqwants); | |
452 | ||
453 | trace_xfs_dqreclaim_want(dqp); | |
3f97b163 | 454 | list_lru_isolate(lru, &dqp->q_lru); |
cd56a39a | 455 | XFS_STATS_DEC(xs_qm_dquot_unused); |
35163417 | 456 | return LRU_REMOVED; |
cd56a39a DC |
457 | } |
458 | ||
459 | /* | |
460 | * If the dquot is dirty, flush it. If it's already being flushed, just | |
461 | * skip it so there is time for the IO to complete before we try to | |
462 | * reclaim it again on the next LRU pass. | |
463 | */ | |
464 | if (!xfs_dqflock_nowait(dqp)) { | |
465 | xfs_dqunlock(dqp); | |
466 | goto out_miss_busy; | |
467 | } | |
468 | ||
469 | if (XFS_DQ_IS_DIRTY(dqp)) { | |
470 | struct xfs_buf *bp = NULL; | |
471 | int error; | |
472 | ||
473 | trace_xfs_dqreclaim_dirty(dqp); | |
474 | ||
475 | /* we have to drop the LRU lock to flush the dquot */ | |
476 | spin_unlock(lru_lock); | |
477 | ||
478 | error = xfs_qm_dqflush(dqp, &bp); | |
479 | if (error) { | |
480 | xfs_warn(dqp->q_mount, "%s: dquot %p flush failed", | |
481 | __func__, dqp); | |
482 | goto out_unlock_dirty; | |
483 | } | |
484 | ||
485 | xfs_buf_delwri_queue(bp, &isol->buffers); | |
486 | xfs_buf_relse(bp); | |
487 | goto out_unlock_dirty; | |
488 | } | |
489 | xfs_dqfunlock(dqp); | |
490 | ||
491 | /* | |
492 | * Prevent lookups now that we are past the point of no return. | |
493 | */ | |
494 | dqp->dq_flags |= XFS_DQ_FREEING; | |
495 | xfs_dqunlock(dqp); | |
496 | ||
497 | ASSERT(dqp->q_nrefs == 0); | |
3f97b163 | 498 | list_lru_isolate_move(lru, &dqp->q_lru, &isol->dispose); |
cd56a39a DC |
499 | XFS_STATS_DEC(xs_qm_dquot_unused); |
500 | trace_xfs_dqreclaim_done(dqp); | |
501 | XFS_STATS_INC(xs_qm_dqreclaims); | |
35163417 | 502 | return LRU_REMOVED; |
cd56a39a DC |
503 | |
504 | out_miss_busy: | |
505 | trace_xfs_dqreclaim_busy(dqp); | |
506 | XFS_STATS_INC(xs_qm_dqreclaim_misses); | |
35163417 | 507 | return LRU_SKIP; |
cd56a39a DC |
508 | |
509 | out_unlock_dirty: | |
510 | trace_xfs_dqreclaim_busy(dqp); | |
511 | XFS_STATS_INC(xs_qm_dqreclaim_misses); | |
35163417 DC |
512 | xfs_dqunlock(dqp); |
513 | spin_lock(lru_lock); | |
514 | return LRU_RETRY; | |
cd56a39a DC |
515 | } |
516 | ||
2f5b56f8 | 517 | static unsigned long |
cd56a39a DC |
518 | xfs_qm_shrink_scan( |
519 | struct shrinker *shrink, | |
520 | struct shrink_control *sc) | |
521 | { | |
522 | struct xfs_quotainfo *qi = container_of(shrink, | |
523 | struct xfs_quotainfo, qi_shrinker); | |
524 | struct xfs_qm_isolate isol; | |
2f5b56f8 | 525 | unsigned long freed; |
cd56a39a | 526 | int error; |
cd56a39a DC |
527 | |
528 | if ((sc->gfp_mask & (__GFP_FS|__GFP_WAIT)) != (__GFP_FS|__GFP_WAIT)) | |
529 | return 0; | |
530 | ||
531 | INIT_LIST_HEAD(&isol.buffers); | |
532 | INIT_LIST_HEAD(&isol.dispose); | |
533 | ||
503c358c VD |
534 | freed = list_lru_shrink_walk(&qi->qi_lru, sc, |
535 | xfs_qm_dquot_isolate, &isol); | |
cd56a39a DC |
536 | |
537 | error = xfs_buf_delwri_submit(&isol.buffers); | |
538 | if (error) | |
539 | xfs_warn(NULL, "%s: dquot reclaim failed", __func__); | |
540 | ||
541 | while (!list_empty(&isol.dispose)) { | |
542 | struct xfs_dquot *dqp; | |
543 | ||
544 | dqp = list_first_entry(&isol.dispose, struct xfs_dquot, q_lru); | |
545 | list_del_init(&dqp->q_lru); | |
546 | xfs_qm_dqfree_one(dqp); | |
547 | } | |
548 | ||
549 | return freed; | |
550 | } | |
551 | ||
2f5b56f8 | 552 | static unsigned long |
cd56a39a DC |
553 | xfs_qm_shrink_count( |
554 | struct shrinker *shrink, | |
555 | struct shrink_control *sc) | |
556 | { | |
557 | struct xfs_quotainfo *qi = container_of(shrink, | |
558 | struct xfs_quotainfo, qi_shrinker); | |
559 | ||
503c358c | 560 | return list_lru_shrink_count(&qi->qi_lru, sc); |
cd56a39a DC |
561 | } |
562 | ||
1da177e4 LT |
563 | /* |
564 | * This initializes all the quota information that's kept in the | |
565 | * mount structure | |
566 | */ | |
ba0f32d4 | 567 | STATIC int |
1da177e4 LT |
568 | xfs_qm_init_quotainfo( |
569 | xfs_mount_t *mp) | |
570 | { | |
571 | xfs_quotainfo_t *qinf; | |
572 | int error; | |
573 | xfs_dquot_t *dqp; | |
574 | ||
575 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
576 | ||
1da177e4 LT |
577 | qinf = mp->m_quotainfo = kmem_zalloc(sizeof(xfs_quotainfo_t), KM_SLEEP); |
578 | ||
2451337d | 579 | error = list_lru_init(&qinf->qi_lru); |
ee4eec47 DC |
580 | if (error) |
581 | goto out_free_qinf; | |
5ca302c8 | 582 | |
1da177e4 LT |
583 | /* |
584 | * See if quotainodes are setup, and if not, allocate them, | |
585 | * and change the superblock accordingly. | |
586 | */ | |
ee4eec47 DC |
587 | error = xfs_qm_init_quotainos(mp); |
588 | if (error) | |
589 | goto out_free_lru; | |
1da177e4 | 590 | |
9f920f11 CH |
591 | INIT_RADIX_TREE(&qinf->qi_uquota_tree, GFP_NOFS); |
592 | INIT_RADIX_TREE(&qinf->qi_gquota_tree, GFP_NOFS); | |
92f8ff73 | 593 | INIT_RADIX_TREE(&qinf->qi_pquota_tree, GFP_NOFS); |
9f920f11 CH |
594 | mutex_init(&qinf->qi_tree_lock); |
595 | ||
1da177e4 | 596 | /* mutex used to serialize quotaoffs */ |
794ee1ba | 597 | mutex_init(&qinf->qi_quotaofflock); |
1da177e4 LT |
598 | |
599 | /* Precalc some constants */ | |
600 | qinf->qi_dqchunklen = XFS_FSB_TO_BB(mp, XFS_DQUOT_CLUSTER_SIZE_FSB); | |
6ea94bb5 | 601 | qinf->qi_dqperchunk = xfs_calc_dquots_per_chunk(qinf->qi_dqchunklen); |
1da177e4 LT |
602 | |
603 | mp->m_qflags |= (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_CHKD); | |
604 | ||
605 | /* | |
606 | * We try to get the limits from the superuser's limits fields. | |
607 | * This is quite hacky, but it is standard quota practice. | |
7ae44407 | 608 | * |
1da177e4 LT |
609 | * We look at the USR dquot with id == 0 first, but if user quotas |
610 | * are not enabled we goto the GRP dquot with id == 0. | |
611 | * We don't really care to keep separate default limits for user | |
612 | * and group quotas, at least not at this point. | |
7ae44407 CH |
613 | * |
614 | * Since we may not have done a quotacheck by this point, just read | |
615 | * the dquot without attaching it to any hashtables or lists. | |
1da177e4 | 616 | */ |
7ae44407 CH |
617 | error = xfs_qm_dqread(mp, 0, |
618 | XFS_IS_UQUOTA_RUNNING(mp) ? XFS_DQ_USER : | |
619 | (XFS_IS_GQUOTA_RUNNING(mp) ? XFS_DQ_GROUP : | |
620 | XFS_DQ_PROJ), | |
621 | XFS_QMOPT_DOWARN, &dqp); | |
622 | if (!error) { | |
1da177e4 LT |
623 | xfs_disk_dquot_t *ddqp = &dqp->q_core; |
624 | ||
625 | /* | |
626 | * The warnings and timers set the grace period given to | |
627 | * a user or group before he or she can not perform any | |
628 | * more writing. If it is zero, a default is used. | |
629 | */ | |
1149d96a CH |
630 | qinf->qi_btimelimit = ddqp->d_btimer ? |
631 | be32_to_cpu(ddqp->d_btimer) : XFS_QM_BTIMELIMIT; | |
632 | qinf->qi_itimelimit = ddqp->d_itimer ? | |
633 | be32_to_cpu(ddqp->d_itimer) : XFS_QM_ITIMELIMIT; | |
634 | qinf->qi_rtbtimelimit = ddqp->d_rtbtimer ? | |
635 | be32_to_cpu(ddqp->d_rtbtimer) : XFS_QM_RTBTIMELIMIT; | |
636 | qinf->qi_bwarnlimit = ddqp->d_bwarns ? | |
637 | be16_to_cpu(ddqp->d_bwarns) : XFS_QM_BWARNLIMIT; | |
638 | qinf->qi_iwarnlimit = ddqp->d_iwarns ? | |
639 | be16_to_cpu(ddqp->d_iwarns) : XFS_QM_IWARNLIMIT; | |
640 | qinf->qi_rtbwarnlimit = ddqp->d_rtbwarns ? | |
641 | be16_to_cpu(ddqp->d_rtbwarns) : XFS_QM_RTBWARNLIMIT; | |
642 | qinf->qi_bhardlimit = be64_to_cpu(ddqp->d_blk_hardlimit); | |
643 | qinf->qi_bsoftlimit = be64_to_cpu(ddqp->d_blk_softlimit); | |
644 | qinf->qi_ihardlimit = be64_to_cpu(ddqp->d_ino_hardlimit); | |
645 | qinf->qi_isoftlimit = be64_to_cpu(ddqp->d_ino_softlimit); | |
646 | qinf->qi_rtbhardlimit = be64_to_cpu(ddqp->d_rtb_hardlimit); | |
647 | qinf->qi_rtbsoftlimit = be64_to_cpu(ddqp->d_rtb_softlimit); | |
ee4eec47 | 648 | |
1da177e4 LT |
649 | xfs_qm_dqdestroy(dqp); |
650 | } else { | |
651 | qinf->qi_btimelimit = XFS_QM_BTIMELIMIT; | |
652 | qinf->qi_itimelimit = XFS_QM_ITIMELIMIT; | |
653 | qinf->qi_rtbtimelimit = XFS_QM_RTBTIMELIMIT; | |
654 | qinf->qi_bwarnlimit = XFS_QM_BWARNLIMIT; | |
655 | qinf->qi_iwarnlimit = XFS_QM_IWARNLIMIT; | |
06d10dd9 | 656 | qinf->qi_rtbwarnlimit = XFS_QM_RTBWARNLIMIT; |
1da177e4 LT |
657 | } |
658 | ||
cd56a39a DC |
659 | qinf->qi_shrinker.count_objects = xfs_qm_shrink_count; |
660 | qinf->qi_shrinker.scan_objects = xfs_qm_shrink_scan; | |
f8739c3c | 661 | qinf->qi_shrinker.seeks = DEFAULT_SEEKS; |
cd56a39a | 662 | qinf->qi_shrinker.flags = SHRINKER_NUMA_AWARE; |
f8739c3c | 663 | register_shrinker(&qinf->qi_shrinker); |
014c2544 | 664 | return 0; |
ee4eec47 DC |
665 | |
666 | out_free_lru: | |
667 | list_lru_destroy(&qinf->qi_lru); | |
668 | out_free_qinf: | |
669 | kmem_free(qinf); | |
670 | mp->m_quotainfo = NULL; | |
671 | return error; | |
1da177e4 LT |
672 | } |
673 | ||
674 | ||
675 | /* | |
676 | * Gets called when unmounting a filesystem or when all quotas get | |
677 | * turned off. | |
678 | * This purges the quota inodes, destroys locks and frees itself. | |
679 | */ | |
680 | void | |
681 | xfs_qm_destroy_quotainfo( | |
682 | xfs_mount_t *mp) | |
683 | { | |
684 | xfs_quotainfo_t *qi; | |
685 | ||
686 | qi = mp->m_quotainfo; | |
687 | ASSERT(qi != NULL); | |
1da177e4 | 688 | |
f8739c3c | 689 | unregister_shrinker(&qi->qi_shrinker); |
f5e1dd34 | 690 | list_lru_destroy(&qi->qi_lru); |
f8739c3c | 691 | |
1da177e4 | 692 | if (qi->qi_uquotaip) { |
26cc0021 | 693 | IRELE(qi->qi_uquotaip); |
1da177e4 LT |
694 | qi->qi_uquotaip = NULL; /* paranoia */ |
695 | } | |
696 | if (qi->qi_gquotaip) { | |
26cc0021 | 697 | IRELE(qi->qi_gquotaip); |
1da177e4 LT |
698 | qi->qi_gquotaip = NULL; |
699 | } | |
92f8ff73 CS |
700 | if (qi->qi_pquotaip) { |
701 | IRELE(qi->qi_pquotaip); | |
702 | qi->qi_pquotaip = NULL; | |
703 | } | |
1da177e4 | 704 | mutex_destroy(&qi->qi_quotaofflock); |
f0e2d93c | 705 | kmem_free(qi); |
1da177e4 LT |
706 | mp->m_quotainfo = NULL; |
707 | } | |
708 | ||
1da177e4 LT |
709 | /* |
710 | * Create an inode and return with a reference already taken, but unlocked | |
711 | * This is how we create quota inodes | |
712 | */ | |
713 | STATIC int | |
714 | xfs_qm_qino_alloc( | |
715 | xfs_mount_t *mp, | |
716 | xfs_inode_t **ip, | |
1da177e4 LT |
717 | uint flags) |
718 | { | |
719 | xfs_trans_t *tp; | |
720 | int error; | |
1da177e4 | 721 | int committed; |
58c90473 | 722 | bool need_alloc = true; |
1da177e4 | 723 | |
d892d586 CS |
724 | *ip = NULL; |
725 | /* | |
726 | * With superblock that doesn't have separate pquotino, we | |
727 | * share an inode between gquota and pquota. If the on-disk | |
728 | * superblock has GQUOTA and the filesystem is now mounted | |
729 | * with PQUOTA, just use sb_gquotino for sb_pquotino and | |
730 | * vice-versa. | |
731 | */ | |
732 | if (!xfs_sb_version_has_pquotino(&mp->m_sb) && | |
733 | (flags & (XFS_QMOPT_PQUOTA|XFS_QMOPT_GQUOTA))) { | |
734 | xfs_ino_t ino = NULLFSINO; | |
735 | ||
736 | if ((flags & XFS_QMOPT_PQUOTA) && | |
737 | (mp->m_sb.sb_gquotino != NULLFSINO)) { | |
738 | ino = mp->m_sb.sb_gquotino; | |
739 | ASSERT(mp->m_sb.sb_pquotino == NULLFSINO); | |
740 | } else if ((flags & XFS_QMOPT_GQUOTA) && | |
741 | (mp->m_sb.sb_pquotino != NULLFSINO)) { | |
742 | ino = mp->m_sb.sb_pquotino; | |
743 | ASSERT(mp->m_sb.sb_gquotino == NULLFSINO); | |
744 | } | |
745 | if (ino != NULLFSINO) { | |
746 | error = xfs_iget(mp, NULL, ino, 0, 0, ip); | |
747 | if (error) | |
748 | return error; | |
749 | mp->m_sb.sb_gquotino = NULLFSINO; | |
750 | mp->m_sb.sb_pquotino = NULLFSINO; | |
58c90473 | 751 | need_alloc = false; |
d892d586 CS |
752 | } |
753 | } | |
754 | ||
061f7209 | 755 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QINOCREATE); |
3d3c8b52 JL |
756 | error = xfs_trans_reserve(tp, &M_RES(mp)->tr_create, |
757 | XFS_QM_QINOCREATE_SPACE_RES(mp), 0); | |
758 | if (error) { | |
1da177e4 | 759 | xfs_trans_cancel(tp, 0); |
014c2544 | 760 | return error; |
1da177e4 | 761 | } |
1da177e4 | 762 | |
58c90473 | 763 | if (need_alloc) { |
d892d586 CS |
764 | error = xfs_dir_ialloc(&tp, NULL, S_IFREG, 1, 0, 0, 1, ip, |
765 | &committed); | |
766 | if (error) { | |
767 | xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | | |
768 | XFS_TRANS_ABORT); | |
769 | return error; | |
770 | } | |
1da177e4 LT |
771 | } |
772 | ||
1da177e4 LT |
773 | /* |
774 | * Make the changes in the superblock, and log those too. | |
775 | * sbfields arg may contain fields other than *QUOTINO; | |
776 | * VERSIONNUM for example. | |
777 | */ | |
3685c2a1 | 778 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 779 | if (flags & XFS_QMOPT_SBVERSION) { |
62118709 | 780 | ASSERT(!xfs_sb_version_hasquota(&mp->m_sb)); |
1da177e4 | 781 | |
62118709 | 782 | xfs_sb_version_addquota(&mp->m_sb); |
1da177e4 LT |
783 | mp->m_sb.sb_uquotino = NULLFSINO; |
784 | mp->m_sb.sb_gquotino = NULLFSINO; | |
d892d586 | 785 | mp->m_sb.sb_pquotino = NULLFSINO; |
1da177e4 | 786 | |
d892d586 CS |
787 | /* qflags will get updated fully _after_ quotacheck */ |
788 | mp->m_sb.sb_qflags = mp->m_qflags & XFS_ALL_QUOTA_ACCT; | |
1da177e4 LT |
789 | } |
790 | if (flags & XFS_QMOPT_UQUOTA) | |
791 | mp->m_sb.sb_uquotino = (*ip)->i_ino; | |
d892d586 | 792 | else if (flags & XFS_QMOPT_GQUOTA) |
1da177e4 | 793 | mp->m_sb.sb_gquotino = (*ip)->i_ino; |
d892d586 CS |
794 | else |
795 | mp->m_sb.sb_pquotino = (*ip)->i_ino; | |
3685c2a1 | 796 | spin_unlock(&mp->m_sb_lock); |
61e63ecb | 797 | xfs_log_sb(tp); |
1da177e4 | 798 | |
58c90473 DC |
799 | error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES); |
800 | if (error) { | |
801 | ASSERT(XFS_FORCED_SHUTDOWN(mp)); | |
53487786 | 802 | xfs_alert(mp, "%s failed (error %d)!", __func__, error); |
1da177e4 | 803 | } |
58c90473 DC |
804 | if (need_alloc) |
805 | xfs_finish_inode_setup(*ip); | |
806 | return error; | |
1da177e4 LT |
807 | } |
808 | ||
809 | ||
5b139738 | 810 | STATIC void |
1da177e4 LT |
811 | xfs_qm_reset_dqcounts( |
812 | xfs_mount_t *mp, | |
813 | xfs_buf_t *bp, | |
814 | xfs_dqid_t id, | |
815 | uint type) | |
816 | { | |
6fcdc59d | 817 | struct xfs_dqblk *dqb; |
1da177e4 LT |
818 | int j; |
819 | ||
0b1b213f CH |
820 | trace_xfs_reset_dqcounts(bp, _RET_IP_); |
821 | ||
1da177e4 LT |
822 | /* |
823 | * Reset all counters and timers. They'll be | |
824 | * started afresh by xfs_qm_quotacheck. | |
825 | */ | |
826 | #ifdef DEBUG | |
827 | j = XFS_FSB_TO_B(mp, XFS_DQUOT_CLUSTER_SIZE_FSB); | |
828 | do_div(j, sizeof(xfs_dqblk_t)); | |
8a7b8a89 | 829 | ASSERT(mp->m_quotainfo->qi_dqperchunk == j); |
1da177e4 | 830 | #endif |
6fcdc59d | 831 | dqb = bp->b_addr; |
8a7b8a89 | 832 | for (j = 0; j < mp->m_quotainfo->qi_dqperchunk; j++) { |
6fcdc59d DC |
833 | struct xfs_disk_dquot *ddq; |
834 | ||
835 | ddq = (struct xfs_disk_dquot *)&dqb[j]; | |
836 | ||
1da177e4 LT |
837 | /* |
838 | * Do a sanity check, and if needed, repair the dqblk. Don't | |
839 | * output any warnings because it's perfectly possible to | |
9aede1d8 | 840 | * find uninitialised dquot blks. See comment in xfs_dqcheck. |
1da177e4 | 841 | */ |
9aede1d8 DC |
842 | xfs_dqcheck(mp, ddq, id+j, type, XFS_QMOPT_DQREPAIR, |
843 | "xfs_quotacheck"); | |
dfcc70a8 JK |
844 | /* |
845 | * Reset type in case we are reusing group quota file for | |
846 | * project quotas or vice versa | |
847 | */ | |
848 | ddq->d_flags = type; | |
1149d96a CH |
849 | ddq->d_bcount = 0; |
850 | ddq->d_icount = 0; | |
851 | ddq->d_rtbcount = 0; | |
852 | ddq->d_btimer = 0; | |
853 | ddq->d_itimer = 0; | |
854 | ddq->d_rtbtimer = 0; | |
855 | ddq->d_bwarns = 0; | |
856 | ddq->d_iwarns = 0; | |
857 | ddq->d_rtbwarns = 0; | |
6fcdc59d DC |
858 | |
859 | if (xfs_sb_version_hascrc(&mp->m_sb)) { | |
860 | xfs_update_cksum((char *)&dqb[j], | |
861 | sizeof(struct xfs_dqblk), | |
862 | XFS_DQUOT_CRC_OFF); | |
863 | } | |
1da177e4 | 864 | } |
1da177e4 LT |
865 | } |
866 | ||
867 | STATIC int | |
868 | xfs_qm_dqiter_bufs( | |
43ff2122 CH |
869 | struct xfs_mount *mp, |
870 | xfs_dqid_t firstid, | |
871 | xfs_fsblock_t bno, | |
872 | xfs_filblks_t blkcnt, | |
873 | uint flags, | |
874 | struct list_head *buffer_list) | |
1da177e4 | 875 | { |
43ff2122 CH |
876 | struct xfs_buf *bp; |
877 | int error; | |
878 | int type; | |
1da177e4 LT |
879 | |
880 | ASSERT(blkcnt > 0); | |
c8ad20ff NS |
881 | type = flags & XFS_QMOPT_UQUOTA ? XFS_DQ_USER : |
882 | (flags & XFS_QMOPT_PQUOTA ? XFS_DQ_PROJ : XFS_DQ_GROUP); | |
1da177e4 LT |
883 | error = 0; |
884 | ||
885 | /* | |
886 | * Blkcnt arg can be a very big number, and might even be | |
887 | * larger than the log itself. So, we have to break it up into | |
888 | * manageable-sized transactions. | |
889 | * Note that we don't start a permanent transaction here; we might | |
890 | * not be able to get a log reservation for the whole thing up front, | |
891 | * and we don't really care to either, because we just discard | |
892 | * everything if we were to crash in the middle of this loop. | |
893 | */ | |
894 | while (blkcnt--) { | |
895 | error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, | |
896 | XFS_FSB_TO_DADDR(mp, bno), | |
c6319198 | 897 | mp->m_quotainfo->qi_dqchunklen, 0, &bp, |
1813dd64 | 898 | &xfs_dquot_buf_ops); |
1da177e4 | 899 | |
3fe58f30 | 900 | /* |
6fcdc59d DC |
901 | * CRC and validation errors will return a EFSCORRUPTED here. If |
902 | * this occurs, re-read without CRC validation so that we can | |
903 | * repair the damage via xfs_qm_reset_dqcounts(). This process | |
904 | * will leave a trace in the log indicating corruption has | |
905 | * been detected. | |
3fe58f30 | 906 | */ |
2451337d | 907 | if (error == -EFSCORRUPTED) { |
6fcdc59d DC |
908 | error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, |
909 | XFS_FSB_TO_DADDR(mp, bno), | |
910 | mp->m_quotainfo->qi_dqchunklen, 0, &bp, | |
911 | NULL); | |
912 | } | |
913 | ||
914 | if (error) | |
915 | break; | |
916 | ||
5fd364fe DC |
917 | /* |
918 | * A corrupt buffer might not have a verifier attached, so | |
919 | * make sure we have the correct one attached before writeback | |
920 | * occurs. | |
921 | */ | |
922 | bp->b_ops = &xfs_dquot_buf_ops; | |
5b139738 | 923 | xfs_qm_reset_dqcounts(mp, bp, firstid, type); |
43ff2122 | 924 | xfs_buf_delwri_queue(bp, buffer_list); |
61551f1e | 925 | xfs_buf_relse(bp); |
6fcdc59d DC |
926 | |
927 | /* goto the next block. */ | |
1da177e4 | 928 | bno++; |
8a7b8a89 | 929 | firstid += mp->m_quotainfo->qi_dqperchunk; |
1da177e4 | 930 | } |
43ff2122 | 931 | |
014c2544 | 932 | return error; |
1da177e4 LT |
933 | } |
934 | ||
935 | /* | |
c8ad20ff | 936 | * Iterate over all allocated USR/GRP/PRJ dquots in the system, calling a |
1da177e4 LT |
937 | * caller supplied function for every chunk of dquots that we find. |
938 | */ | |
939 | STATIC int | |
940 | xfs_qm_dqiterate( | |
43ff2122 CH |
941 | struct xfs_mount *mp, |
942 | struct xfs_inode *qip, | |
943 | uint flags, | |
944 | struct list_head *buffer_list) | |
1da177e4 | 945 | { |
43ff2122 | 946 | struct xfs_bmbt_irec *map; |
1da177e4 LT |
947 | int i, nmaps; /* number of map entries */ |
948 | int error; /* return value */ | |
949 | xfs_fileoff_t lblkno; | |
950 | xfs_filblks_t maxlblkcnt; | |
951 | xfs_dqid_t firstid; | |
952 | xfs_fsblock_t rablkno; | |
953 | xfs_filblks_t rablkcnt; | |
954 | ||
955 | error = 0; | |
956 | /* | |
c41564b5 | 957 | * This looks racy, but we can't keep an inode lock across a |
1da177e4 LT |
958 | * trans_reserve. But, this gets called during quotacheck, and that |
959 | * happens only at mount time which is single threaded. | |
960 | */ | |
961 | if (qip->i_d.di_nblocks == 0) | |
014c2544 | 962 | return 0; |
1da177e4 LT |
963 | |
964 | map = kmem_alloc(XFS_DQITER_MAP_SIZE * sizeof(*map), KM_SLEEP); | |
965 | ||
966 | lblkno = 0; | |
32972383 | 967 | maxlblkcnt = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes); |
1da177e4 | 968 | do { |
da51d32d CH |
969 | uint lock_mode; |
970 | ||
1da177e4 LT |
971 | nmaps = XFS_DQITER_MAP_SIZE; |
972 | /* | |
973 | * We aren't changing the inode itself. Just changing | |
974 | * some of its data. No new blocks are added here, and | |
975 | * the inode is never added to the transaction. | |
976 | */ | |
da51d32d | 977 | lock_mode = xfs_ilock_data_map_shared(qip); |
5c8ed202 DC |
978 | error = xfs_bmapi_read(qip, lblkno, maxlblkcnt - lblkno, |
979 | map, &nmaps, 0); | |
da51d32d | 980 | xfs_iunlock(qip, lock_mode); |
1da177e4 LT |
981 | if (error) |
982 | break; | |
983 | ||
984 | ASSERT(nmaps <= XFS_DQITER_MAP_SIZE); | |
985 | for (i = 0; i < nmaps; i++) { | |
986 | ASSERT(map[i].br_startblock != DELAYSTARTBLOCK); | |
987 | ASSERT(map[i].br_blockcount); | |
988 | ||
989 | ||
990 | lblkno += map[i].br_blockcount; | |
991 | ||
992 | if (map[i].br_startblock == HOLESTARTBLOCK) | |
993 | continue; | |
994 | ||
995 | firstid = (xfs_dqid_t) map[i].br_startoff * | |
8a7b8a89 | 996 | mp->m_quotainfo->qi_dqperchunk; |
1da177e4 LT |
997 | /* |
998 | * Do a read-ahead on the next extent. | |
999 | */ | |
1000 | if ((i+1 < nmaps) && | |
1001 | (map[i+1].br_startblock != HOLESTARTBLOCK)) { | |
1002 | rablkcnt = map[i+1].br_blockcount; | |
1003 | rablkno = map[i+1].br_startblock; | |
1004 | while (rablkcnt--) { | |
1a1a3e97 | 1005 | xfs_buf_readahead(mp->m_ddev_targp, |
1da177e4 | 1006 | XFS_FSB_TO_DADDR(mp, rablkno), |
c3f8fc73 | 1007 | mp->m_quotainfo->qi_dqchunklen, |
5fd364fe | 1008 | &xfs_dquot_buf_ops); |
1da177e4 LT |
1009 | rablkno++; |
1010 | } | |
1011 | } | |
1012 | /* | |
1013 | * Iterate thru all the blks in the extent and | |
1014 | * reset the counters of all the dquots inside them. | |
1015 | */ | |
43ff2122 CH |
1016 | error = xfs_qm_dqiter_bufs(mp, firstid, |
1017 | map[i].br_startblock, | |
1018 | map[i].br_blockcount, | |
1019 | flags, buffer_list); | |
1020 | if (error) | |
1021 | goto out; | |
1da177e4 | 1022 | } |
1da177e4 LT |
1023 | } while (nmaps > 0); |
1024 | ||
43ff2122 | 1025 | out: |
f0e2d93c | 1026 | kmem_free(map); |
014c2544 | 1027 | return error; |
1da177e4 LT |
1028 | } |
1029 | ||
1030 | /* | |
1031 | * Called by dqusage_adjust in doing a quotacheck. | |
52fda114 CH |
1032 | * |
1033 | * Given the inode, and a dquot id this updates both the incore dqout as well | |
1034 | * as the buffer copy. This is so that once the quotacheck is done, we can | |
1035 | * just log all the buffers, as opposed to logging numerous updates to | |
1036 | * individual dquots. | |
1da177e4 | 1037 | */ |
52fda114 | 1038 | STATIC int |
1da177e4 | 1039 | xfs_qm_quotacheck_dqadjust( |
52fda114 CH |
1040 | struct xfs_inode *ip, |
1041 | xfs_dqid_t id, | |
1042 | uint type, | |
1da177e4 LT |
1043 | xfs_qcnt_t nblks, |
1044 | xfs_qcnt_t rtblks) | |
1045 | { | |
52fda114 CH |
1046 | struct xfs_mount *mp = ip->i_mount; |
1047 | struct xfs_dquot *dqp; | |
1048 | int error; | |
1049 | ||
1050 | error = xfs_qm_dqget(mp, ip, id, type, | |
1051 | XFS_QMOPT_DQALLOC | XFS_QMOPT_DOWARN, &dqp); | |
1052 | if (error) { | |
1053 | /* | |
1054 | * Shouldn't be able to turn off quotas here. | |
1055 | */ | |
2451337d DC |
1056 | ASSERT(error != -ESRCH); |
1057 | ASSERT(error != -ENOENT); | |
52fda114 CH |
1058 | return error; |
1059 | } | |
0b1b213f CH |
1060 | |
1061 | trace_xfs_dqadjust(dqp); | |
1062 | ||
1da177e4 LT |
1063 | /* |
1064 | * Adjust the inode count and the block count to reflect this inode's | |
1065 | * resource usage. | |
1066 | */ | |
413d57c9 | 1067 | be64_add_cpu(&dqp->q_core.d_icount, 1); |
1da177e4 LT |
1068 | dqp->q_res_icount++; |
1069 | if (nblks) { | |
413d57c9 | 1070 | be64_add_cpu(&dqp->q_core.d_bcount, nblks); |
1da177e4 LT |
1071 | dqp->q_res_bcount += nblks; |
1072 | } | |
1073 | if (rtblks) { | |
413d57c9 | 1074 | be64_add_cpu(&dqp->q_core.d_rtbcount, rtblks); |
1da177e4 LT |
1075 | dqp->q_res_rtbcount += rtblks; |
1076 | } | |
1077 | ||
1078 | /* | |
1079 | * Set default limits, adjust timers (since we changed usages) | |
191f8488 CH |
1080 | * |
1081 | * There are no timers for the default values set in the root dquot. | |
1da177e4 | 1082 | */ |
191f8488 | 1083 | if (dqp->q_core.d_id) { |
4b6eae2e | 1084 | xfs_qm_adjust_dqlimits(mp, dqp); |
52fda114 | 1085 | xfs_qm_adjust_dqtimers(mp, &dqp->q_core); |
1da177e4 LT |
1086 | } |
1087 | ||
1088 | dqp->dq_flags |= XFS_DQ_DIRTY; | |
52fda114 CH |
1089 | xfs_qm_dqput(dqp); |
1090 | return 0; | |
1da177e4 LT |
1091 | } |
1092 | ||
1093 | STATIC int | |
1094 | xfs_qm_get_rtblks( | |
1095 | xfs_inode_t *ip, | |
1096 | xfs_qcnt_t *O_rtblks) | |
1097 | { | |
1098 | xfs_filblks_t rtblks; /* total rt blks */ | |
4eea22f0 | 1099 | xfs_extnum_t idx; /* extent record index */ |
1da177e4 LT |
1100 | xfs_ifork_t *ifp; /* inode fork pointer */ |
1101 | xfs_extnum_t nextents; /* number of extent entries */ | |
1da177e4 LT |
1102 | int error; |
1103 | ||
1104 | ASSERT(XFS_IS_REALTIME_INODE(ip)); | |
1105 | ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK); | |
1106 | if (!(ifp->if_flags & XFS_IFEXTENTS)) { | |
1107 | if ((error = xfs_iread_extents(NULL, ip, XFS_DATA_FORK))) | |
014c2544 | 1108 | return error; |
1da177e4 LT |
1109 | } |
1110 | rtblks = 0; | |
4eea22f0 | 1111 | nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t); |
a6f64d4a CH |
1112 | for (idx = 0; idx < nextents; idx++) |
1113 | rtblks += xfs_bmbt_get_blockcount(xfs_iext_get_ext(ifp, idx)); | |
1da177e4 | 1114 | *O_rtblks = (xfs_qcnt_t)rtblks; |
014c2544 | 1115 | return 0; |
1da177e4 LT |
1116 | } |
1117 | ||
1118 | /* | |
1119 | * callback routine supplied to bulkstat(). Given an inumber, find its | |
1120 | * dquots and update them to account for resources taken by that inode. | |
1121 | */ | |
1122 | /* ARGSUSED */ | |
1123 | STATIC int | |
1124 | xfs_qm_dqusage_adjust( | |
1125 | xfs_mount_t *mp, /* mount point for filesystem */ | |
1126 | xfs_ino_t ino, /* inode number to get data for */ | |
1127 | void __user *buffer, /* not used */ | |
1128 | int ubsize, /* not used */ | |
1da177e4 | 1129 | int *ubused, /* not used */ |
1da177e4 LT |
1130 | int *res) /* result code value */ |
1131 | { | |
1132 | xfs_inode_t *ip; | |
52fda114 | 1133 | xfs_qcnt_t nblks, rtblks = 0; |
1da177e4 LT |
1134 | int error; |
1135 | ||
1136 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
1137 | ||
1138 | /* | |
1139 | * rootino must have its resources accounted for, not so with the quota | |
1140 | * inodes. | |
1141 | */ | |
9cad19d2 | 1142 | if (xfs_is_quota_inode(&mp->m_sb, ino)) { |
1da177e4 | 1143 | *res = BULKSTAT_RV_NOTHING; |
2451337d | 1144 | return -EINVAL; |
1da177e4 LT |
1145 | } |
1146 | ||
1147 | /* | |
1148 | * We don't _need_ to take the ilock EXCL. However, the xfs_qm_dqget | |
1149 | * interface expects the inode to be exclusively locked because that's | |
1150 | * the case in all other instances. It's OK that we do this because | |
1151 | * quotacheck is done only at mount time. | |
1152 | */ | |
52fda114 CH |
1153 | error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_EXCL, &ip); |
1154 | if (error) { | |
1da177e4 | 1155 | *res = BULKSTAT_RV_NOTHING; |
014c2544 | 1156 | return error; |
1da177e4 LT |
1157 | } |
1158 | ||
52fda114 | 1159 | ASSERT(ip->i_delayed_blks == 0); |
1da177e4 | 1160 | |
52fda114 | 1161 | if (XFS_IS_REALTIME_INODE(ip)) { |
1da177e4 LT |
1162 | /* |
1163 | * Walk thru the extent list and count the realtime blocks. | |
1164 | */ | |
52fda114 CH |
1165 | error = xfs_qm_get_rtblks(ip, &rtblks); |
1166 | if (error) | |
1167 | goto error0; | |
1da177e4 | 1168 | } |
1da177e4 | 1169 | |
52fda114 | 1170 | nblks = (xfs_qcnt_t)ip->i_d.di_nblocks - rtblks; |
1da177e4 LT |
1171 | |
1172 | /* | |
1173 | * Add the (disk blocks and inode) resources occupied by this | |
1174 | * inode to its dquots. We do this adjustment in the incore dquot, | |
1175 | * and also copy the changes to its buffer. | |
1176 | * We don't care about putting these changes in a transaction | |
1177 | * envelope because if we crash in the middle of a 'quotacheck' | |
1178 | * we have to start from the beginning anyway. | |
1179 | * Once we're done, we'll log all the dquot bufs. | |
1180 | * | |
c41564b5 | 1181 | * The *QUOTA_ON checks below may look pretty racy, but quotachecks |
1da177e4 LT |
1182 | * and quotaoffs don't race. (Quotachecks happen at mount time only). |
1183 | */ | |
1184 | if (XFS_IS_UQUOTA_ON(mp)) { | |
52fda114 CH |
1185 | error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_uid, |
1186 | XFS_DQ_USER, nblks, rtblks); | |
1187 | if (error) | |
1188 | goto error0; | |
1da177e4 | 1189 | } |
52fda114 CH |
1190 | |
1191 | if (XFS_IS_GQUOTA_ON(mp)) { | |
1192 | error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_gid, | |
1193 | XFS_DQ_GROUP, nblks, rtblks); | |
1194 | if (error) | |
1195 | goto error0; | |
1da177e4 | 1196 | } |
1da177e4 | 1197 | |
52fda114 | 1198 | if (XFS_IS_PQUOTA_ON(mp)) { |
6743099c | 1199 | error = xfs_qm_quotacheck_dqadjust(ip, xfs_get_projid(ip), |
52fda114 CH |
1200 | XFS_DQ_PROJ, nblks, rtblks); |
1201 | if (error) | |
1202 | goto error0; | |
1203 | } | |
1204 | ||
1205 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1206 | IRELE(ip); | |
1da177e4 | 1207 | *res = BULKSTAT_RV_DIDONE; |
014c2544 | 1208 | return 0; |
52fda114 CH |
1209 | |
1210 | error0: | |
1211 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1212 | IRELE(ip); | |
1213 | *res = BULKSTAT_RV_GIVEUP; | |
1214 | return error; | |
1da177e4 LT |
1215 | } |
1216 | ||
b84a3a96 CH |
1217 | STATIC int |
1218 | xfs_qm_flush_one( | |
43ff2122 CH |
1219 | struct xfs_dquot *dqp, |
1220 | void *data) | |
b84a3a96 | 1221 | { |
43ff2122 | 1222 | struct list_head *buffer_list = data; |
fe7257fd | 1223 | struct xfs_buf *bp = NULL; |
b84a3a96 CH |
1224 | int error = 0; |
1225 | ||
1226 | xfs_dqlock(dqp); | |
1227 | if (dqp->dq_flags & XFS_DQ_FREEING) | |
1228 | goto out_unlock; | |
1229 | if (!XFS_DQ_IS_DIRTY(dqp)) | |
1230 | goto out_unlock; | |
1231 | ||
43ff2122 | 1232 | xfs_dqflock(dqp); |
fe7257fd CH |
1233 | error = xfs_qm_dqflush(dqp, &bp); |
1234 | if (error) | |
1235 | goto out_unlock; | |
b84a3a96 | 1236 | |
43ff2122 | 1237 | xfs_buf_delwri_queue(bp, buffer_list); |
fe7257fd | 1238 | xfs_buf_relse(bp); |
b84a3a96 CH |
1239 | out_unlock: |
1240 | xfs_dqunlock(dqp); | |
1241 | return error; | |
1242 | } | |
1243 | ||
1da177e4 LT |
1244 | /* |
1245 | * Walk thru all the filesystem inodes and construct a consistent view | |
1246 | * of the disk quota world. If the quotacheck fails, disable quotas. | |
1247 | */ | |
eb866bbf | 1248 | STATIC int |
1da177e4 LT |
1249 | xfs_qm_quotacheck( |
1250 | xfs_mount_t *mp) | |
1251 | { | |
113a5683 CS |
1252 | int done, count, error, error2; |
1253 | xfs_ino_t lastino; | |
1254 | size_t structsz; | |
1255 | uint flags; | |
1256 | LIST_HEAD (buffer_list); | |
1257 | struct xfs_inode *uip = mp->m_quotainfo->qi_uquotaip; | |
1258 | struct xfs_inode *gip = mp->m_quotainfo->qi_gquotaip; | |
92f8ff73 | 1259 | struct xfs_inode *pip = mp->m_quotainfo->qi_pquotaip; |
1da177e4 LT |
1260 | |
1261 | count = INT_MAX; | |
1262 | structsz = 1; | |
1263 | lastino = 0; | |
1264 | flags = 0; | |
1265 | ||
92f8ff73 | 1266 | ASSERT(uip || gip || pip); |
1da177e4 LT |
1267 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1268 | ||
0b932ccc | 1269 | xfs_notice(mp, "Quotacheck needed: Please wait."); |
1da177e4 LT |
1270 | |
1271 | /* | |
c8ad20ff | 1272 | * First we go thru all the dquots on disk, USR and GRP/PRJ, and reset |
1da177e4 LT |
1273 | * their counters to zero. We need a clean slate. |
1274 | * We don't log our changes till later. | |
1275 | */ | |
8a7b8a89 | 1276 | if (uip) { |
43ff2122 CH |
1277 | error = xfs_qm_dqiterate(mp, uip, XFS_QMOPT_UQUOTA, |
1278 | &buffer_list); | |
8a7b8a89 | 1279 | if (error) |
1da177e4 LT |
1280 | goto error_return; |
1281 | flags |= XFS_UQUOTA_CHKD; | |
1282 | } | |
1283 | ||
8a7b8a89 | 1284 | if (gip) { |
92f8ff73 | 1285 | error = xfs_qm_dqiterate(mp, gip, XFS_QMOPT_GQUOTA, |
43ff2122 | 1286 | &buffer_list); |
8a7b8a89 | 1287 | if (error) |
1da177e4 | 1288 | goto error_return; |
92f8ff73 CS |
1289 | flags |= XFS_GQUOTA_CHKD; |
1290 | } | |
1291 | ||
1292 | if (pip) { | |
1293 | error = xfs_qm_dqiterate(mp, pip, XFS_QMOPT_PQUOTA, | |
1294 | &buffer_list); | |
1295 | if (error) | |
1296 | goto error_return; | |
1297 | flags |= XFS_PQUOTA_CHKD; | |
1da177e4 LT |
1298 | } |
1299 | ||
1300 | do { | |
1301 | /* | |
1302 | * Iterate thru all the inodes in the file system, | |
1303 | * adjusting the corresponding dquot counters in core. | |
1304 | */ | |
7dce11db CH |
1305 | error = xfs_bulkstat(mp, &lastino, &count, |
1306 | xfs_qm_dqusage_adjust, | |
1307 | structsz, NULL, &done); | |
1308 | if (error) | |
1da177e4 LT |
1309 | break; |
1310 | ||
7dce11db | 1311 | } while (!done); |
1da177e4 | 1312 | |
4b8879df | 1313 | /* |
b84a3a96 CH |
1314 | * We've made all the changes that we need to make incore. Flush them |
1315 | * down to disk buffers if everything was updated successfully. | |
4b8879df | 1316 | */ |
43ff2122 CH |
1317 | if (XFS_IS_UQUOTA_ON(mp)) { |
1318 | error = xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_flush_one, | |
1319 | &buffer_list); | |
1320 | } | |
b84a3a96 | 1321 | if (XFS_IS_GQUOTA_ON(mp)) { |
43ff2122 CH |
1322 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_flush_one, |
1323 | &buffer_list); | |
b84a3a96 CH |
1324 | if (!error) |
1325 | error = error2; | |
1326 | } | |
1327 | if (XFS_IS_PQUOTA_ON(mp)) { | |
43ff2122 CH |
1328 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_flush_one, |
1329 | &buffer_list); | |
b84a3a96 CH |
1330 | if (!error) |
1331 | error = error2; | |
1332 | } | |
4b8879df | 1333 | |
43ff2122 CH |
1334 | error2 = xfs_buf_delwri_submit(&buffer_list); |
1335 | if (!error) | |
1336 | error = error2; | |
1337 | ||
1da177e4 LT |
1338 | /* |
1339 | * We can get this error if we couldn't do a dquot allocation inside | |
1340 | * xfs_qm_dqusage_adjust (via bulkstat). We don't care about the | |
1341 | * dirty dquots that might be cached, we just want to get rid of them | |
1342 | * and turn quotaoff. The dquots won't be attached to any of the inodes | |
1343 | * at this point (because we intentionally didn't in dqget_noattach). | |
1344 | */ | |
1345 | if (error) { | |
8112e9dc | 1346 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
1da177e4 LT |
1347 | goto error_return; |
1348 | } | |
1da177e4 | 1349 | |
1da177e4 LT |
1350 | /* |
1351 | * If one type of quotas is off, then it will lose its | |
1352 | * quotachecked status, since we won't be doing accounting for | |
1353 | * that type anymore. | |
1354 | */ | |
4177af3a | 1355 | mp->m_qflags &= ~XFS_ALL_QUOTA_CHKD; |
1da177e4 LT |
1356 | mp->m_qflags |= flags; |
1357 | ||
1da177e4 | 1358 | error_return: |
43ff2122 CH |
1359 | while (!list_empty(&buffer_list)) { |
1360 | struct xfs_buf *bp = | |
1361 | list_first_entry(&buffer_list, struct xfs_buf, b_list); | |
1362 | list_del_init(&bp->b_list); | |
1363 | xfs_buf_relse(bp); | |
1364 | } | |
1365 | ||
1da177e4 | 1366 | if (error) { |
0b932ccc DC |
1367 | xfs_warn(mp, |
1368 | "Quotacheck: Unsuccessful (Error %d): Disabling quotas.", | |
1369 | error); | |
1da177e4 LT |
1370 | /* |
1371 | * We must turn off quotas. | |
1372 | */ | |
1373 | ASSERT(mp->m_quotainfo != NULL); | |
1da177e4 | 1374 | xfs_qm_destroy_quotainfo(mp); |
31d5577b | 1375 | if (xfs_mount_reset_sbqflags(mp)) { |
0b932ccc DC |
1376 | xfs_warn(mp, |
1377 | "Quotacheck: Failed to reset quota flags."); | |
31d5577b | 1378 | } |
0b932ccc DC |
1379 | } else |
1380 | xfs_notice(mp, "Quotacheck: Done."); | |
d99831ff | 1381 | return error; |
1da177e4 LT |
1382 | } |
1383 | ||
eb866bbf JL |
1384 | /* |
1385 | * This is called from xfs_mountfs to start quotas and initialize all | |
1386 | * necessary data structures like quotainfo. This is also responsible for | |
1387 | * running a quotacheck as necessary. We are guaranteed that the superblock | |
1388 | * is consistently read in at this point. | |
1389 | * | |
1390 | * If we fail here, the mount will continue with quota turned off. We don't | |
1391 | * need to inidicate success or failure at all. | |
1392 | */ | |
1393 | void | |
1394 | xfs_qm_mount_quotas( | |
1395 | struct xfs_mount *mp) | |
1396 | { | |
1397 | int error = 0; | |
1398 | uint sbf; | |
1399 | ||
1400 | /* | |
1401 | * If quotas on realtime volumes is not supported, we disable | |
1402 | * quotas immediately. | |
1403 | */ | |
1404 | if (mp->m_sb.sb_rextents) { | |
1405 | xfs_notice(mp, "Cannot turn on quotas for realtime filesystem"); | |
1406 | mp->m_qflags = 0; | |
1407 | goto write_changes; | |
1408 | } | |
1409 | ||
1410 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
1411 | ||
1412 | /* | |
1413 | * Allocate the quotainfo structure inside the mount struct, and | |
1414 | * create quotainode(s), and change/rev superblock if necessary. | |
1415 | */ | |
1416 | error = xfs_qm_init_quotainfo(mp); | |
1417 | if (error) { | |
1418 | /* | |
1419 | * We must turn off quotas. | |
1420 | */ | |
1421 | ASSERT(mp->m_quotainfo == NULL); | |
1422 | mp->m_qflags = 0; | |
1423 | goto write_changes; | |
1424 | } | |
1425 | /* | |
1426 | * If any of the quotas are not consistent, do a quotacheck. | |
1427 | */ | |
1428 | if (XFS_QM_NEED_QUOTACHECK(mp)) { | |
1429 | error = xfs_qm_quotacheck(mp); | |
1430 | if (error) { | |
1431 | /* Quotacheck failed and disabled quotas. */ | |
1432 | return; | |
1433 | } | |
1434 | } | |
1435 | /* | |
1436 | * If one type of quotas is off, then it will lose its | |
1437 | * quotachecked status, since we won't be doing accounting for | |
1438 | * that type anymore. | |
1439 | */ | |
1440 | if (!XFS_IS_UQUOTA_ON(mp)) | |
1441 | mp->m_qflags &= ~XFS_UQUOTA_CHKD; | |
1442 | if (!XFS_IS_GQUOTA_ON(mp)) | |
1443 | mp->m_qflags &= ~XFS_GQUOTA_CHKD; | |
1444 | if (!XFS_IS_PQUOTA_ON(mp)) | |
1445 | mp->m_qflags &= ~XFS_PQUOTA_CHKD; | |
1446 | ||
1447 | write_changes: | |
1448 | /* | |
1449 | * We actually don't have to acquire the m_sb_lock at all. | |
1450 | * This can only be called from mount, and that's single threaded. XXX | |
1451 | */ | |
1452 | spin_lock(&mp->m_sb_lock); | |
1453 | sbf = mp->m_sb.sb_qflags; | |
1454 | mp->m_sb.sb_qflags = mp->m_qflags & XFS_MOUNT_QUOTA_ALL; | |
1455 | spin_unlock(&mp->m_sb_lock); | |
1456 | ||
1457 | if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) { | |
61e63ecb | 1458 | if (xfs_sync_sb(mp, false)) { |
eb866bbf JL |
1459 | /* |
1460 | * We could only have been turning quotas off. | |
1461 | * We aren't in very good shape actually because | |
1462 | * the incore structures are convinced that quotas are | |
1463 | * off, but the on disk superblock doesn't know that ! | |
1464 | */ | |
1465 | ASSERT(!(XFS_IS_QUOTA_RUNNING(mp))); | |
1466 | xfs_alert(mp, "%s: Superblock update failed!", | |
1467 | __func__); | |
1468 | } | |
1469 | } | |
1470 | ||
1471 | if (error) { | |
1472 | xfs_warn(mp, "Failed to initialize disk quotas."); | |
1473 | return; | |
1474 | } | |
1475 | } | |
1476 | ||
1da177e4 LT |
1477 | /* |
1478 | * This is called after the superblock has been read in and we're ready to | |
1479 | * iget the quota inodes. | |
1480 | */ | |
1481 | STATIC int | |
1482 | xfs_qm_init_quotainos( | |
1483 | xfs_mount_t *mp) | |
1484 | { | |
113a5683 CS |
1485 | struct xfs_inode *uip = NULL; |
1486 | struct xfs_inode *gip = NULL; | |
92f8ff73 | 1487 | struct xfs_inode *pip = NULL; |
113a5683 | 1488 | int error; |
113a5683 | 1489 | uint flags = 0; |
1da177e4 LT |
1490 | |
1491 | ASSERT(mp->m_quotainfo); | |
1da177e4 LT |
1492 | |
1493 | /* | |
1494 | * Get the uquota and gquota inodes | |
1495 | */ | |
62118709 | 1496 | if (xfs_sb_version_hasquota(&mp->m_sb)) { |
1da177e4 LT |
1497 | if (XFS_IS_UQUOTA_ON(mp) && |
1498 | mp->m_sb.sb_uquotino != NULLFSINO) { | |
1499 | ASSERT(mp->m_sb.sb_uquotino > 0); | |
113a5683 CS |
1500 | error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, |
1501 | 0, 0, &uip); | |
1502 | if (error) | |
b474c7ae | 1503 | return error; |
1da177e4 | 1504 | } |
92f8ff73 | 1505 | if (XFS_IS_GQUOTA_ON(mp) && |
1da177e4 LT |
1506 | mp->m_sb.sb_gquotino != NULLFSINO) { |
1507 | ASSERT(mp->m_sb.sb_gquotino > 0); | |
113a5683 CS |
1508 | error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, |
1509 | 0, 0, &gip); | |
1510 | if (error) | |
1511 | goto error_rele; | |
1da177e4 | 1512 | } |
92f8ff73 | 1513 | if (XFS_IS_PQUOTA_ON(mp) && |
d892d586 CS |
1514 | mp->m_sb.sb_pquotino != NULLFSINO) { |
1515 | ASSERT(mp->m_sb.sb_pquotino > 0); | |
1516 | error = xfs_iget(mp, NULL, mp->m_sb.sb_pquotino, | |
92f8ff73 CS |
1517 | 0, 0, &pip); |
1518 | if (error) | |
1519 | goto error_rele; | |
1520 | } | |
1da177e4 LT |
1521 | } else { |
1522 | flags |= XFS_QMOPT_SBVERSION; | |
1da177e4 LT |
1523 | } |
1524 | ||
1525 | /* | |
92f8ff73 | 1526 | * Create the three inodes, if they don't exist already. The changes |
1da177e4 LT |
1527 | * made above will get added to a transaction and logged in one of |
1528 | * the qino_alloc calls below. If the device is readonly, | |
1529 | * temporarily switch to read-write to do this. | |
1530 | */ | |
1531 | if (XFS_IS_UQUOTA_ON(mp) && uip == NULL) { | |
113a5683 | 1532 | error = xfs_qm_qino_alloc(mp, &uip, |
113a5683 CS |
1533 | flags | XFS_QMOPT_UQUOTA); |
1534 | if (error) | |
1535 | goto error_rele; | |
1da177e4 LT |
1536 | |
1537 | flags &= ~XFS_QMOPT_SBVERSION; | |
1538 | } | |
92f8ff73 | 1539 | if (XFS_IS_GQUOTA_ON(mp) && gip == NULL) { |
c8ad20ff | 1540 | error = xfs_qm_qino_alloc(mp, &gip, |
92f8ff73 CS |
1541 | flags | XFS_QMOPT_GQUOTA); |
1542 | if (error) | |
1543 | goto error_rele; | |
1544 | ||
1545 | flags &= ~XFS_QMOPT_SBVERSION; | |
1546 | } | |
1547 | if (XFS_IS_PQUOTA_ON(mp) && pip == NULL) { | |
92f8ff73 | 1548 | error = xfs_qm_qino_alloc(mp, &pip, |
92f8ff73 | 1549 | flags | XFS_QMOPT_PQUOTA); |
113a5683 CS |
1550 | if (error) |
1551 | goto error_rele; | |
1da177e4 LT |
1552 | } |
1553 | ||
8a7b8a89 CH |
1554 | mp->m_quotainfo->qi_uquotaip = uip; |
1555 | mp->m_quotainfo->qi_gquotaip = gip; | |
92f8ff73 | 1556 | mp->m_quotainfo->qi_pquotaip = pip; |
1da177e4 | 1557 | |
014c2544 | 1558 | return 0; |
113a5683 CS |
1559 | |
1560 | error_rele: | |
1561 | if (uip) | |
1562 | IRELE(uip); | |
1563 | if (gip) | |
1564 | IRELE(gip); | |
92f8ff73 CS |
1565 | if (pip) |
1566 | IRELE(pip); | |
b474c7ae | 1567 | return error; |
1da177e4 LT |
1568 | } |
1569 | ||
92b2e5b3 CH |
1570 | STATIC void |
1571 | xfs_qm_dqfree_one( | |
1572 | struct xfs_dquot *dqp) | |
1573 | { | |
1574 | struct xfs_mount *mp = dqp->q_mount; | |
1575 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
1da177e4 | 1576 | |
9f920f11 | 1577 | mutex_lock(&qi->qi_tree_lock); |
329e0875 | 1578 | radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags), |
9f920f11 | 1579 | be32_to_cpu(dqp->q_core.d_id)); |
368e1361 | 1580 | |
92b2e5b3 | 1581 | qi->qi_dquots--; |
b84a3a96 | 1582 | mutex_unlock(&qi->qi_tree_lock); |
92b2e5b3 CH |
1583 | |
1584 | xfs_qm_dqdestroy(dqp); | |
1585 | } | |
1586 | ||
1da177e4 LT |
1587 | /* --------------- utility functions for vnodeops ---------------- */ |
1588 | ||
1589 | ||
1590 | /* | |
6c77b0ea | 1591 | * Given an inode, a uid, gid and prid make sure that we have |
1da177e4 LT |
1592 | * allocated relevant dquot(s) on disk, and that we won't exceed inode |
1593 | * quotas by creating this file. | |
1594 | * This also attaches dquot(s) to the given inode after locking it, | |
1595 | * and returns the dquots corresponding to the uid and/or gid. | |
1596 | * | |
1597 | * in : inode (unlocked) | |
1598 | * out : udquot, gdquot with references taken and unlocked | |
1599 | */ | |
1600 | int | |
1601 | xfs_qm_vop_dqalloc( | |
7d095257 | 1602 | struct xfs_inode *ip, |
7aab1b28 DE |
1603 | xfs_dqid_t uid, |
1604 | xfs_dqid_t gid, | |
7d095257 CH |
1605 | prid_t prid, |
1606 | uint flags, | |
1607 | struct xfs_dquot **O_udqpp, | |
92f8ff73 CS |
1608 | struct xfs_dquot **O_gdqpp, |
1609 | struct xfs_dquot **O_pdqpp) | |
1da177e4 | 1610 | { |
7d095257 | 1611 | struct xfs_mount *mp = ip->i_mount; |
113a5683 CS |
1612 | struct xfs_dquot *uq = NULL; |
1613 | struct xfs_dquot *gq = NULL; | |
92f8ff73 | 1614 | struct xfs_dquot *pq = NULL; |
7d095257 CH |
1615 | int error; |
1616 | uint lockflags; | |
1da177e4 | 1617 | |
7d095257 | 1618 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
1da177e4 LT |
1619 | return 0; |
1620 | ||
1621 | lockflags = XFS_ILOCK_EXCL; | |
1622 | xfs_ilock(ip, lockflags); | |
1623 | ||
bd186aa9 | 1624 | if ((flags & XFS_QMOPT_INHERIT) && XFS_INHERIT_GID(ip)) |
1da177e4 LT |
1625 | gid = ip->i_d.di_gid; |
1626 | ||
1627 | /* | |
1628 | * Attach the dquot(s) to this inode, doing a dquot allocation | |
1629 | * if necessary. The dquot(s) will not be locked. | |
1630 | */ | |
1631 | if (XFS_NOT_DQATTACHED(mp, ip)) { | |
7d095257 CH |
1632 | error = xfs_qm_dqattach_locked(ip, XFS_QMOPT_DQALLOC); |
1633 | if (error) { | |
1da177e4 | 1634 | xfs_iunlock(ip, lockflags); |
014c2544 | 1635 | return error; |
1da177e4 LT |
1636 | } |
1637 | } | |
1638 | ||
c8ad20ff | 1639 | if ((flags & XFS_QMOPT_UQUOTA) && XFS_IS_UQUOTA_ON(mp)) { |
1da177e4 LT |
1640 | if (ip->i_d.di_uid != uid) { |
1641 | /* | |
1642 | * What we need is the dquot that has this uid, and | |
1643 | * if we send the inode to dqget, the uid of the inode | |
1644 | * takes priority over what's sent in the uid argument. | |
1645 | * We must unlock inode here before calling dqget if | |
1646 | * we're not sending the inode, because otherwise | |
1647 | * we'll deadlock by doing trans_reserve while | |
1648 | * holding ilock. | |
1649 | */ | |
1650 | xfs_iunlock(ip, lockflags); | |
7aab1b28 | 1651 | error = xfs_qm_dqget(mp, NULL, uid, |
1da177e4 LT |
1652 | XFS_DQ_USER, |
1653 | XFS_QMOPT_DQALLOC | | |
1654 | XFS_QMOPT_DOWARN, | |
113a5683 CS |
1655 | &uq); |
1656 | if (error) { | |
2451337d | 1657 | ASSERT(error != -ENOENT); |
014c2544 | 1658 | return error; |
1da177e4 LT |
1659 | } |
1660 | /* | |
1661 | * Get the ilock in the right order. | |
1662 | */ | |
1663 | xfs_dqunlock(uq); | |
1664 | lockflags = XFS_ILOCK_SHARED; | |
1665 | xfs_ilock(ip, lockflags); | |
1666 | } else { | |
1667 | /* | |
1668 | * Take an extra reference, because we'll return | |
1669 | * this to caller | |
1670 | */ | |
1671 | ASSERT(ip->i_udquot); | |
78e55892 | 1672 | uq = xfs_qm_dqhold(ip->i_udquot); |
1da177e4 LT |
1673 | } |
1674 | } | |
c8ad20ff | 1675 | if ((flags & XFS_QMOPT_GQUOTA) && XFS_IS_GQUOTA_ON(mp)) { |
1da177e4 LT |
1676 | if (ip->i_d.di_gid != gid) { |
1677 | xfs_iunlock(ip, lockflags); | |
7aab1b28 | 1678 | error = xfs_qm_dqget(mp, NULL, gid, |
1da177e4 LT |
1679 | XFS_DQ_GROUP, |
1680 | XFS_QMOPT_DQALLOC | | |
1681 | XFS_QMOPT_DOWARN, | |
113a5683 CS |
1682 | &gq); |
1683 | if (error) { | |
2451337d | 1684 | ASSERT(error != -ENOENT); |
113a5683 | 1685 | goto error_rele; |
1da177e4 LT |
1686 | } |
1687 | xfs_dqunlock(gq); | |
1688 | lockflags = XFS_ILOCK_SHARED; | |
1689 | xfs_ilock(ip, lockflags); | |
1690 | } else { | |
1691 | ASSERT(ip->i_gdquot); | |
78e55892 | 1692 | gq = xfs_qm_dqhold(ip->i_gdquot); |
1da177e4 | 1693 | } |
92f8ff73 CS |
1694 | } |
1695 | if ((flags & XFS_QMOPT_PQUOTA) && XFS_IS_PQUOTA_ON(mp)) { | |
6743099c | 1696 | if (xfs_get_projid(ip) != prid) { |
c8ad20ff | 1697 | xfs_iunlock(ip, lockflags); |
113a5683 | 1698 | error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t)prid, |
c8ad20ff NS |
1699 | XFS_DQ_PROJ, |
1700 | XFS_QMOPT_DQALLOC | | |
1701 | XFS_QMOPT_DOWARN, | |
92f8ff73 | 1702 | &pq); |
113a5683 | 1703 | if (error) { |
2451337d | 1704 | ASSERT(error != -ENOENT); |
113a5683 | 1705 | goto error_rele; |
c8ad20ff | 1706 | } |
92f8ff73 | 1707 | xfs_dqunlock(pq); |
c8ad20ff NS |
1708 | lockflags = XFS_ILOCK_SHARED; |
1709 | xfs_ilock(ip, lockflags); | |
1710 | } else { | |
92f8ff73 CS |
1711 | ASSERT(ip->i_pdquot); |
1712 | pq = xfs_qm_dqhold(ip->i_pdquot); | |
c8ad20ff | 1713 | } |
1da177e4 LT |
1714 | } |
1715 | if (uq) | |
0b1b213f | 1716 | trace_xfs_dquot_dqalloc(ip); |
1da177e4 LT |
1717 | |
1718 | xfs_iunlock(ip, lockflags); | |
1719 | if (O_udqpp) | |
1720 | *O_udqpp = uq; | |
d2a5e3c6 | 1721 | else |
1da177e4 LT |
1722 | xfs_qm_dqrele(uq); |
1723 | if (O_gdqpp) | |
1724 | *O_gdqpp = gq; | |
d2a5e3c6 | 1725 | else |
1da177e4 | 1726 | xfs_qm_dqrele(gq); |
92f8ff73 CS |
1727 | if (O_pdqpp) |
1728 | *O_pdqpp = pq; | |
d2a5e3c6 | 1729 | else |
92f8ff73 | 1730 | xfs_qm_dqrele(pq); |
014c2544 | 1731 | return 0; |
113a5683 CS |
1732 | |
1733 | error_rele: | |
d2a5e3c6 ME |
1734 | xfs_qm_dqrele(gq); |
1735 | xfs_qm_dqrele(uq); | |
113a5683 | 1736 | return error; |
1da177e4 LT |
1737 | } |
1738 | ||
1739 | /* | |
1740 | * Actually transfer ownership, and do dquot modifications. | |
1741 | * These were already reserved. | |
1742 | */ | |
1743 | xfs_dquot_t * | |
1744 | xfs_qm_vop_chown( | |
1745 | xfs_trans_t *tp, | |
1746 | xfs_inode_t *ip, | |
1747 | xfs_dquot_t **IO_olddq, | |
1748 | xfs_dquot_t *newdq) | |
1749 | { | |
1750 | xfs_dquot_t *prevdq; | |
06d10dd9 NS |
1751 | uint bfield = XFS_IS_REALTIME_INODE(ip) ? |
1752 | XFS_TRANS_DQ_RTBCOUNT : XFS_TRANS_DQ_BCOUNT; | |
1753 | ||
7d095257 | 1754 | |
579aa9ca | 1755 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
1756 | ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount)); |
1757 | ||
1758 | /* old dquot */ | |
1759 | prevdq = *IO_olddq; | |
1760 | ASSERT(prevdq); | |
1761 | ASSERT(prevdq != newdq); | |
1762 | ||
06d10dd9 NS |
1763 | xfs_trans_mod_dquot(tp, prevdq, bfield, -(ip->i_d.di_nblocks)); |
1764 | xfs_trans_mod_dquot(tp, prevdq, XFS_TRANS_DQ_ICOUNT, -1); | |
1da177e4 LT |
1765 | |
1766 | /* the sparkling new dquot */ | |
06d10dd9 NS |
1767 | xfs_trans_mod_dquot(tp, newdq, bfield, ip->i_d.di_nblocks); |
1768 | xfs_trans_mod_dquot(tp, newdq, XFS_TRANS_DQ_ICOUNT, 1); | |
1da177e4 LT |
1769 | |
1770 | /* | |
78e55892 CH |
1771 | * Take an extra reference, because the inode is going to keep |
1772 | * this dquot pointer even after the trans_commit. | |
1da177e4 | 1773 | */ |
78e55892 | 1774 | *IO_olddq = xfs_qm_dqhold(newdq); |
1da177e4 | 1775 | |
014c2544 | 1776 | return prevdq; |
1da177e4 LT |
1777 | } |
1778 | ||
1779 | /* | |
c8ad20ff | 1780 | * Quota reservations for setattr(AT_UID|AT_GID|AT_PROJID). |
1da177e4 LT |
1781 | */ |
1782 | int | |
1783 | xfs_qm_vop_chown_reserve( | |
113a5683 CS |
1784 | struct xfs_trans *tp, |
1785 | struct xfs_inode *ip, | |
1786 | struct xfs_dquot *udqp, | |
1787 | struct xfs_dquot *gdqp, | |
92f8ff73 | 1788 | struct xfs_dquot *pdqp, |
113a5683 | 1789 | uint flags) |
1da177e4 | 1790 | { |
113a5683 CS |
1791 | struct xfs_mount *mp = ip->i_mount; |
1792 | uint delblks, blkflags, prjflags = 0; | |
1793 | struct xfs_dquot *udq_unres = NULL; | |
1794 | struct xfs_dquot *gdq_unres = NULL; | |
92f8ff73 | 1795 | struct xfs_dquot *pdq_unres = NULL; |
113a5683 CS |
1796 | struct xfs_dquot *udq_delblks = NULL; |
1797 | struct xfs_dquot *gdq_delblks = NULL; | |
92f8ff73 | 1798 | struct xfs_dquot *pdq_delblks = NULL; |
113a5683 | 1799 | int error; |
7d095257 | 1800 | |
1da177e4 | 1801 | |
579aa9ca | 1802 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED)); |
1da177e4 LT |
1803 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1804 | ||
1805 | delblks = ip->i_delayed_blks; | |
06d10dd9 NS |
1806 | blkflags = XFS_IS_REALTIME_INODE(ip) ? |
1807 | XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS; | |
1da177e4 LT |
1808 | |
1809 | if (XFS_IS_UQUOTA_ON(mp) && udqp && | |
7aab1b28 | 1810 | ip->i_d.di_uid != be32_to_cpu(udqp->q_core.d_id)) { |
113a5683 | 1811 | udq_delblks = udqp; |
1da177e4 LT |
1812 | /* |
1813 | * If there are delayed allocation blocks, then we have to | |
1814 | * unreserve those from the old dquot, and add them to the | |
1815 | * new dquot. | |
1816 | */ | |
1817 | if (delblks) { | |
1818 | ASSERT(ip->i_udquot); | |
113a5683 | 1819 | udq_unres = ip->i_udquot; |
1da177e4 LT |
1820 | } |
1821 | } | |
92f8ff73 CS |
1822 | if (XFS_IS_GQUOTA_ON(ip->i_mount) && gdqp && |
1823 | ip->i_d.di_gid != be32_to_cpu(gdqp->q_core.d_id)) { | |
1824 | gdq_delblks = gdqp; | |
1825 | if (delblks) { | |
1826 | ASSERT(ip->i_gdquot); | |
1827 | gdq_unres = ip->i_gdquot; | |
1828 | } | |
1829 | } | |
1830 | ||
1831 | if (XFS_IS_PQUOTA_ON(ip->i_mount) && pdqp && | |
1832 | xfs_get_projid(ip) != be32_to_cpu(pdqp->q_core.d_id)) { | |
1833 | prjflags = XFS_QMOPT_ENOSPC; | |
1834 | pdq_delblks = pdqp; | |
1835 | if (delblks) { | |
1836 | ASSERT(ip->i_pdquot); | |
1837 | pdq_unres = ip->i_pdquot; | |
1da177e4 LT |
1838 | } |
1839 | } | |
1840 | ||
113a5683 | 1841 | error = xfs_trans_reserve_quota_bydquots(tp, ip->i_mount, |
92f8ff73 CS |
1842 | udq_delblks, gdq_delblks, pdq_delblks, |
1843 | ip->i_d.di_nblocks, 1, | |
113a5683 CS |
1844 | flags | blkflags | prjflags); |
1845 | if (error) | |
1846 | return error; | |
1da177e4 LT |
1847 | |
1848 | /* | |
1849 | * Do the delayed blks reservations/unreservations now. Since, these | |
1850 | * are done without the help of a transaction, if a reservation fails | |
1851 | * its previous reservations won't be automatically undone by trans | |
1852 | * code. So, we have to do it manually here. | |
1853 | */ | |
1854 | if (delblks) { | |
1855 | /* | |
1856 | * Do the reservations first. Unreservation can't fail. | |
1857 | */ | |
92f8ff73 CS |
1858 | ASSERT(udq_delblks || gdq_delblks || pdq_delblks); |
1859 | ASSERT(udq_unres || gdq_unres || pdq_unres); | |
113a5683 | 1860 | error = xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, |
92f8ff73 CS |
1861 | udq_delblks, gdq_delblks, pdq_delblks, |
1862 | (xfs_qcnt_t)delblks, 0, | |
113a5683 CS |
1863 | flags | blkflags | prjflags); |
1864 | if (error) | |
1865 | return error; | |
1da177e4 | 1866 | xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, |
92f8ff73 CS |
1867 | udq_unres, gdq_unres, pdq_unres, |
1868 | -((xfs_qcnt_t)delblks), 0, blkflags); | |
1da177e4 LT |
1869 | } |
1870 | ||
d99831ff | 1871 | return 0; |
1da177e4 LT |
1872 | } |
1873 | ||
1874 | int | |
1875 | xfs_qm_vop_rename_dqattach( | |
7d095257 | 1876 | struct xfs_inode **i_tab) |
1da177e4 | 1877 | { |
7d095257 CH |
1878 | struct xfs_mount *mp = i_tab[0]->i_mount; |
1879 | int i; | |
1da177e4 | 1880 | |
7d095257 | 1881 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
014c2544 | 1882 | return 0; |
1da177e4 | 1883 | |
7d095257 CH |
1884 | for (i = 0; (i < 4 && i_tab[i]); i++) { |
1885 | struct xfs_inode *ip = i_tab[i]; | |
1886 | int error; | |
1887 | ||
1da177e4 LT |
1888 | /* |
1889 | * Watch out for duplicate entries in the table. | |
1890 | */ | |
7d095257 CH |
1891 | if (i == 0 || ip != i_tab[i-1]) { |
1892 | if (XFS_NOT_DQATTACHED(mp, ip)) { | |
1da177e4 LT |
1893 | error = xfs_qm_dqattach(ip, 0); |
1894 | if (error) | |
014c2544 | 1895 | return error; |
1da177e4 LT |
1896 | } |
1897 | } | |
1898 | } | |
014c2544 | 1899 | return 0; |
1da177e4 LT |
1900 | } |
1901 | ||
1902 | void | |
7d095257 CH |
1903 | xfs_qm_vop_create_dqattach( |
1904 | struct xfs_trans *tp, | |
1905 | struct xfs_inode *ip, | |
1906 | struct xfs_dquot *udqp, | |
92f8ff73 CS |
1907 | struct xfs_dquot *gdqp, |
1908 | struct xfs_dquot *pdqp) | |
1da177e4 | 1909 | { |
7d095257 CH |
1910 | struct xfs_mount *mp = tp->t_mountp; |
1911 | ||
1912 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) | |
1da177e4 LT |
1913 | return; |
1914 | ||
579aa9ca | 1915 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
7d095257 | 1916 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1da177e4 | 1917 | |
37eb9706 | 1918 | if (udqp && XFS_IS_UQUOTA_ON(mp)) { |
1da177e4 | 1919 | ASSERT(ip->i_udquot == NULL); |
1149d96a | 1920 | ASSERT(ip->i_d.di_uid == be32_to_cpu(udqp->q_core.d_id)); |
78e55892 CH |
1921 | |
1922 | ip->i_udquot = xfs_qm_dqhold(udqp); | |
1da177e4 LT |
1923 | xfs_trans_mod_dquot(tp, udqp, XFS_TRANS_DQ_ICOUNT, 1); |
1924 | } | |
37eb9706 | 1925 | if (gdqp && XFS_IS_GQUOTA_ON(mp)) { |
1da177e4 | 1926 | ASSERT(ip->i_gdquot == NULL); |
92f8ff73 | 1927 | ASSERT(ip->i_d.di_gid == be32_to_cpu(gdqp->q_core.d_id)); |
78e55892 | 1928 | ip->i_gdquot = xfs_qm_dqhold(gdqp); |
1da177e4 LT |
1929 | xfs_trans_mod_dquot(tp, gdqp, XFS_TRANS_DQ_ICOUNT, 1); |
1930 | } | |
37eb9706 | 1931 | if (pdqp && XFS_IS_PQUOTA_ON(mp)) { |
92f8ff73 | 1932 | ASSERT(ip->i_pdquot == NULL); |
92f8ff73 CS |
1933 | ASSERT(xfs_get_projid(ip) == be32_to_cpu(pdqp->q_core.d_id)); |
1934 | ||
1935 | ip->i_pdquot = xfs_qm_dqhold(pdqp); | |
1936 | xfs_trans_mod_dquot(tp, pdqp, XFS_TRANS_DQ_ICOUNT, 1); | |
1937 | } | |
1da177e4 LT |
1938 | } |
1939 |