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0b61f8a4 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 | 2 | /* |
4ce3121f NS |
3 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
4 | * All Rights Reserved. | |
1da177e4 | 5 | */ |
1da177e4 LT |
6 | #include "xfs.h" |
7 | #include "xfs_fs.h" | |
a4fbe6ab | 8 | #include "xfs_shared.h" |
6ca1c906 | 9 | #include "xfs_format.h" |
239880ef | 10 | #include "xfs_log_format.h" |
239880ef | 11 | #include "xfs_trans_resv.h" |
a844f451 | 12 | #include "xfs_bit.h" |
1da177e4 | 13 | #include "xfs_sb.h" |
1da177e4 | 14 | #include "xfs_mount.h" |
1da177e4 | 15 | #include "xfs_inode.h" |
ebd126a6 | 16 | #include "xfs_iwalk.h" |
239880ef | 17 | #include "xfs_quota.h" |
a844f451 | 18 | #include "xfs_bmap.h" |
8bfadd8d | 19 | #include "xfs_bmap_util.h" |
239880ef | 20 | #include "xfs_trans.h" |
1da177e4 | 21 | #include "xfs_trans_space.h" |
1da177e4 | 22 | #include "xfs_qm.h" |
0b1b213f | 23 | #include "xfs_trace.h" |
33479e05 | 24 | #include "xfs_icache.h" |
a5155b87 | 25 | #include "xfs_error.h" |
1da177e4 LT |
26 | |
27 | /* | |
28 | * The global quota manager. There is only one of these for the entire | |
29 | * system, _not_ one per file system. XQM keeps track of the overall | |
30 | * quota functionality, including maintaining the freelist and hash | |
31 | * tables of dquots. | |
32 | */ | |
c072fbef PR |
33 | STATIC int xfs_qm_init_quotainos(struct xfs_mount *mp); |
34 | STATIC int xfs_qm_init_quotainfo(struct xfs_mount *mp); | |
1da177e4 | 35 | |
c072fbef | 36 | STATIC void xfs_qm_destroy_quotainos(struct xfs_quotainfo *qi); |
cd56a39a | 37 | STATIC void xfs_qm_dqfree_one(struct xfs_dquot *dqp); |
b84a3a96 CH |
38 | /* |
39 | * We use the batch lookup interface to iterate over the dquots as it | |
40 | * currently is the only interface into the radix tree code that allows | |
41 | * fuzzy lookups instead of exact matches. Holding the lock over multiple | |
42 | * operations is fine as all callers are used either during mount/umount | |
43 | * or quotaoff. | |
44 | */ | |
45 | #define XFS_DQ_LOOKUP_BATCH 32 | |
46 | ||
47 | STATIC int | |
48 | xfs_qm_dquot_walk( | |
49 | struct xfs_mount *mp, | |
50 | int type, | |
43ff2122 CH |
51 | int (*execute)(struct xfs_dquot *dqp, void *data), |
52 | void *data) | |
b84a3a96 CH |
53 | { |
54 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
329e0875 | 55 | struct radix_tree_root *tree = xfs_dquot_tree(qi, type); |
b84a3a96 CH |
56 | uint32_t next_index; |
57 | int last_error = 0; | |
58 | int skipped; | |
59 | int nr_found; | |
60 | ||
61 | restart: | |
62 | skipped = 0; | |
63 | next_index = 0; | |
64 | nr_found = 0; | |
65 | ||
66 | while (1) { | |
67 | struct xfs_dquot *batch[XFS_DQ_LOOKUP_BATCH]; | |
68 | int error = 0; | |
69 | int i; | |
70 | ||
71 | mutex_lock(&qi->qi_tree_lock); | |
72 | nr_found = radix_tree_gang_lookup(tree, (void **)batch, | |
73 | next_index, XFS_DQ_LOOKUP_BATCH); | |
74 | if (!nr_found) { | |
75 | mutex_unlock(&qi->qi_tree_lock); | |
76 | break; | |
77 | } | |
78 | ||
79 | for (i = 0; i < nr_found; i++) { | |
80 | struct xfs_dquot *dqp = batch[i]; | |
81 | ||
82 | next_index = be32_to_cpu(dqp->q_core.d_id) + 1; | |
83 | ||
43ff2122 | 84 | error = execute(batch[i], data); |
2451337d | 85 | if (error == -EAGAIN) { |
b84a3a96 CH |
86 | skipped++; |
87 | continue; | |
88 | } | |
2451337d | 89 | if (error && last_error != -EFSCORRUPTED) |
b84a3a96 CH |
90 | last_error = error; |
91 | } | |
92 | ||
93 | mutex_unlock(&qi->qi_tree_lock); | |
94 | ||
95 | /* bail out if the filesystem is corrupted. */ | |
2451337d | 96 | if (last_error == -EFSCORRUPTED) { |
b84a3a96 CH |
97 | skipped = 0; |
98 | break; | |
99 | } | |
cfaf2d03 BF |
100 | /* we're done if id overflows back to zero */ |
101 | if (!next_index) | |
102 | break; | |
b84a3a96 CH |
103 | } |
104 | ||
105 | if (skipped) { | |
106 | delay(1); | |
107 | goto restart; | |
108 | } | |
109 | ||
110 | return last_error; | |
111 | } | |
112 | ||
113 | ||
114 | /* | |
115 | * Purge a dquot from all tracking data structures and free it. | |
116 | */ | |
117 | STATIC int | |
118 | xfs_qm_dqpurge( | |
43ff2122 CH |
119 | struct xfs_dquot *dqp, |
120 | void *data) | |
b84a3a96 CH |
121 | { |
122 | struct xfs_mount *mp = dqp->q_mount; | |
123 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
8d3d7e2b | 124 | int error = -EAGAIN; |
b84a3a96 CH |
125 | |
126 | xfs_dqlock(dqp); | |
8d3d7e2b BF |
127 | if ((dqp->dq_flags & XFS_DQ_FREEING) || dqp->q_nrefs != 0) |
128 | goto out_unlock; | |
b84a3a96 | 129 | |
b84a3a96 CH |
130 | dqp->dq_flags |= XFS_DQ_FREEING; |
131 | ||
43ff2122 | 132 | xfs_dqflock(dqp); |
b84a3a96 CH |
133 | |
134 | /* | |
135 | * If we are turning this type of quotas off, we don't care | |
136 | * about the dirty metadata sitting in this dquot. OTOH, if | |
137 | * we're unmounting, we do care, so we flush it and wait. | |
138 | */ | |
139 | if (XFS_DQ_IS_DIRTY(dqp)) { | |
fe7257fd | 140 | struct xfs_buf *bp = NULL; |
b84a3a96 CH |
141 | |
142 | /* | |
143 | * We don't care about getting disk errors here. We need | |
144 | * to purge this dquot anyway, so we go ahead regardless. | |
145 | */ | |
fe7257fd | 146 | error = xfs_qm_dqflush(dqp, &bp); |
609001bc | 147 | if (!error) { |
fe7257fd CH |
148 | error = xfs_bwrite(bp); |
149 | xfs_buf_relse(bp); | |
8d3d7e2b BF |
150 | } else if (error == -EAGAIN) { |
151 | goto out_unlock; | |
fe7257fd | 152 | } |
b84a3a96 CH |
153 | xfs_dqflock(dqp); |
154 | } | |
155 | ||
156 | ASSERT(atomic_read(&dqp->q_pincount) == 0); | |
157 | ASSERT(XFS_FORCED_SHUTDOWN(mp) || | |
22525c17 | 158 | !test_bit(XFS_LI_IN_AIL, &dqp->q_logitem.qli_item.li_flags)); |
b84a3a96 CH |
159 | |
160 | xfs_dqfunlock(dqp); | |
161 | xfs_dqunlock(dqp); | |
162 | ||
329e0875 | 163 | radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags), |
b84a3a96 CH |
164 | be32_to_cpu(dqp->q_core.d_id)); |
165 | qi->qi_dquots--; | |
166 | ||
167 | /* | |
168 | * We move dquots to the freelist as soon as their reference count | |
169 | * hits zero, so it really should be on the freelist here. | |
170 | */ | |
b84a3a96 | 171 | ASSERT(!list_empty(&dqp->q_lru)); |
cd56a39a | 172 | list_lru_del(&qi->qi_lru, &dqp->q_lru); |
ff6d6af2 | 173 | XFS_STATS_DEC(mp, xs_qm_dquot_unused); |
b84a3a96 CH |
174 | |
175 | xfs_qm_dqdestroy(dqp); | |
df8052e7 | 176 | return 0; |
8d3d7e2b BF |
177 | |
178 | out_unlock: | |
179 | xfs_dqunlock(dqp); | |
180 | return error; | |
df8052e7 JL |
181 | } |
182 | ||
b84a3a96 CH |
183 | /* |
184 | * Purge the dquot cache. | |
185 | */ | |
186 | void | |
187 | xfs_qm_dqpurge_all( | |
188 | struct xfs_mount *mp, | |
189 | uint flags) | |
190 | { | |
3c353375 DC |
191 | if (flags & XFS_QMOPT_UQUOTA) |
192 | xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_dqpurge, NULL); | |
b84a3a96 | 193 | if (flags & XFS_QMOPT_GQUOTA) |
43ff2122 | 194 | xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_dqpurge, NULL); |
b84a3a96 | 195 | if (flags & XFS_QMOPT_PQUOTA) |
43ff2122 | 196 | xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_dqpurge, NULL); |
b84a3a96 CH |
197 | } |
198 | ||
1da177e4 LT |
199 | /* |
200 | * Just destroy the quotainfo structure. | |
201 | */ | |
202 | void | |
7d095257 CH |
203 | xfs_qm_unmount( |
204 | struct xfs_mount *mp) | |
1da177e4 | 205 | { |
7d095257 | 206 | if (mp->m_quotainfo) { |
8112e9dc | 207 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
1da177e4 | 208 | xfs_qm_destroy_quotainfo(mp); |
7d095257 | 209 | } |
1da177e4 LT |
210 | } |
211 | ||
1da177e4 LT |
212 | /* |
213 | * Called from the vfsops layer. | |
214 | */ | |
e57481dc | 215 | void |
1da177e4 LT |
216 | xfs_qm_unmount_quotas( |
217 | xfs_mount_t *mp) | |
218 | { | |
1da177e4 LT |
219 | /* |
220 | * Release the dquots that root inode, et al might be holding, | |
221 | * before we flush quotas and blow away the quotainfo structure. | |
222 | */ | |
223 | ASSERT(mp->m_rootip); | |
224 | xfs_qm_dqdetach(mp->m_rootip); | |
225 | if (mp->m_rbmip) | |
226 | xfs_qm_dqdetach(mp->m_rbmip); | |
227 | if (mp->m_rsumip) | |
228 | xfs_qm_dqdetach(mp->m_rsumip); | |
229 | ||
230 | /* | |
e57481dc | 231 | * Release the quota inodes. |
1da177e4 | 232 | */ |
1da177e4 | 233 | if (mp->m_quotainfo) { |
e57481dc | 234 | if (mp->m_quotainfo->qi_uquotaip) { |
44a8736b | 235 | xfs_irele(mp->m_quotainfo->qi_uquotaip); |
e57481dc | 236 | mp->m_quotainfo->qi_uquotaip = NULL; |
1da177e4 | 237 | } |
e57481dc | 238 | if (mp->m_quotainfo->qi_gquotaip) { |
44a8736b | 239 | xfs_irele(mp->m_quotainfo->qi_gquotaip); |
e57481dc | 240 | mp->m_quotainfo->qi_gquotaip = NULL; |
1da177e4 | 241 | } |
92f8ff73 | 242 | if (mp->m_quotainfo->qi_pquotaip) { |
44a8736b | 243 | xfs_irele(mp->m_quotainfo->qi_pquotaip); |
92f8ff73 CS |
244 | mp->m_quotainfo->qi_pquotaip = NULL; |
245 | } | |
1da177e4 | 246 | } |
1da177e4 LT |
247 | } |
248 | ||
1da177e4 LT |
249 | STATIC int |
250 | xfs_qm_dqattach_one( | |
aefe69a4 PR |
251 | struct xfs_inode *ip, |
252 | xfs_dqid_t id, | |
253 | uint type, | |
254 | bool doalloc, | |
255 | struct xfs_dquot **IO_idqpp) | |
1da177e4 | 256 | { |
aefe69a4 PR |
257 | struct xfs_dquot *dqp; |
258 | int error; | |
1da177e4 | 259 | |
579aa9ca | 260 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 261 | error = 0; |
8e9b6e7f | 262 | |
1da177e4 | 263 | /* |
3c353375 DC |
264 | * See if we already have it in the inode itself. IO_idqpp is &i_udquot |
265 | * or &i_gdquot. This made the code look weird, but made the logic a lot | |
266 | * simpler. | |
1da177e4 | 267 | */ |
8e9b6e7f CH |
268 | dqp = *IO_idqpp; |
269 | if (dqp) { | |
0b1b213f | 270 | trace_xfs_dqattach_found(dqp); |
8e9b6e7f | 271 | return 0; |
1da177e4 LT |
272 | } |
273 | ||
274 | /* | |
3c353375 DC |
275 | * Find the dquot from somewhere. This bumps the reference count of |
276 | * dquot and returns it locked. This can return ENOENT if dquot didn't | |
277 | * exist on disk and we didn't ask it to allocate; ESRCH if quotas got | |
278 | * turned off suddenly. | |
1da177e4 | 279 | */ |
4882c19d | 280 | error = xfs_qm_dqget_inode(ip, type, doalloc, &dqp); |
8e9b6e7f CH |
281 | if (error) |
282 | return error; | |
1da177e4 | 283 | |
0b1b213f | 284 | trace_xfs_dqattach_get(dqp); |
8e9b6e7f | 285 | |
1da177e4 LT |
286 | /* |
287 | * dqget may have dropped and re-acquired the ilock, but it guarantees | |
288 | * that the dquot returned is the one that should go in the inode. | |
289 | */ | |
290 | *IO_idqpp = dqp; | |
8e9b6e7f CH |
291 | xfs_dqunlock(dqp); |
292 | return 0; | |
1da177e4 LT |
293 | } |
294 | ||
b4d05e30 CH |
295 | static bool |
296 | xfs_qm_need_dqattach( | |
297 | struct xfs_inode *ip) | |
298 | { | |
299 | struct xfs_mount *mp = ip->i_mount; | |
300 | ||
301 | if (!XFS_IS_QUOTA_RUNNING(mp)) | |
302 | return false; | |
303 | if (!XFS_IS_QUOTA_ON(mp)) | |
304 | return false; | |
305 | if (!XFS_NOT_DQATTACHED(mp, ip)) | |
306 | return false; | |
9cad19d2 | 307 | if (xfs_is_quota_inode(&mp->m_sb, ip->i_ino)) |
b4d05e30 CH |
308 | return false; |
309 | return true; | |
310 | } | |
1da177e4 LT |
311 | |
312 | /* | |
c8ad20ff NS |
313 | * Given a locked inode, attach dquot(s) to it, taking U/G/P-QUOTAON |
314 | * into account. | |
30ab2dcf | 315 | * If @doalloc is true, the dquot(s) will be allocated if needed. |
1da177e4 LT |
316 | * Inode may get unlocked and relocked in here, and the caller must deal with |
317 | * the consequences. | |
318 | */ | |
319 | int | |
7d095257 | 320 | xfs_qm_dqattach_locked( |
1da177e4 | 321 | xfs_inode_t *ip, |
4882c19d | 322 | bool doalloc) |
1da177e4 LT |
323 | { |
324 | xfs_mount_t *mp = ip->i_mount; | |
1da177e4 LT |
325 | int error = 0; |
326 | ||
b4d05e30 | 327 | if (!xfs_qm_need_dqattach(ip)) |
014c2544 | 328 | return 0; |
1da177e4 | 329 | |
7d095257 | 330 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 331 | |
3c353375 | 332 | if (XFS_IS_UQUOTA_ON(mp) && !ip->i_udquot) { |
ba8adad5 | 333 | error = xfs_qm_dqattach_one(ip, i_uid_read(VFS_I(ip)), |
54295159 | 334 | XFS_DQ_USER, doalloc, &ip->i_udquot); |
1da177e4 LT |
335 | if (error) |
336 | goto done; | |
3c353375 | 337 | ASSERT(ip->i_udquot); |
1da177e4 | 338 | } |
579aa9ca | 339 | |
3c353375 | 340 | if (XFS_IS_GQUOTA_ON(mp) && !ip->i_gdquot) { |
ba8adad5 | 341 | error = xfs_qm_dqattach_one(ip, i_gid_read(VFS_I(ip)), |
54295159 | 342 | XFS_DQ_GROUP, doalloc, &ip->i_gdquot); |
1da177e4 LT |
343 | if (error) |
344 | goto done; | |
3c353375 | 345 | ASSERT(ip->i_gdquot); |
1da177e4 LT |
346 | } |
347 | ||
3c353375 | 348 | if (XFS_IS_PQUOTA_ON(mp) && !ip->i_pdquot) { |
de7a866f | 349 | error = xfs_qm_dqattach_one(ip, ip->i_d.di_projid, XFS_DQ_PROJ, |
4882c19d | 350 | doalloc, &ip->i_pdquot); |
92f8ff73 CS |
351 | if (error) |
352 | goto done; | |
3c353375 | 353 | ASSERT(ip->i_pdquot); |
92f8ff73 CS |
354 | } |
355 | ||
3c353375 | 356 | done: |
1da177e4 | 357 | /* |
3c353375 DC |
358 | * Don't worry about the dquots that we may have attached before any |
359 | * error - they'll get detached later if it has not already been done. | |
1da177e4 | 360 | */ |
7d095257 | 361 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
7d095257 CH |
362 | return error; |
363 | } | |
1da177e4 | 364 | |
7d095257 CH |
365 | int |
366 | xfs_qm_dqattach( | |
c14cfcca | 367 | struct xfs_inode *ip) |
7d095257 CH |
368 | { |
369 | int error; | |
370 | ||
b4d05e30 CH |
371 | if (!xfs_qm_need_dqattach(ip)) |
372 | return 0; | |
373 | ||
7d095257 | 374 | xfs_ilock(ip, XFS_ILOCK_EXCL); |
4882c19d | 375 | error = xfs_qm_dqattach_locked(ip, false); |
7d095257 | 376 | xfs_iunlock(ip, XFS_ILOCK_EXCL); |
1da177e4 | 377 | |
014c2544 | 378 | return error; |
1da177e4 LT |
379 | } |
380 | ||
381 | /* | |
382 | * Release dquots (and their references) if any. | |
383 | * The inode should be locked EXCL except when this's called by | |
384 | * xfs_ireclaim. | |
385 | */ | |
386 | void | |
387 | xfs_qm_dqdetach( | |
388 | xfs_inode_t *ip) | |
389 | { | |
92f8ff73 | 390 | if (!(ip->i_udquot || ip->i_gdquot || ip->i_pdquot)) |
1da177e4 LT |
391 | return; |
392 | ||
0b1b213f CH |
393 | trace_xfs_dquot_dqdetach(ip); |
394 | ||
9cad19d2 | 395 | ASSERT(!xfs_is_quota_inode(&ip->i_mount->m_sb, ip->i_ino)); |
1da177e4 LT |
396 | if (ip->i_udquot) { |
397 | xfs_qm_dqrele(ip->i_udquot); | |
398 | ip->i_udquot = NULL; | |
399 | } | |
400 | if (ip->i_gdquot) { | |
401 | xfs_qm_dqrele(ip->i_gdquot); | |
402 | ip->i_gdquot = NULL; | |
403 | } | |
92f8ff73 CS |
404 | if (ip->i_pdquot) { |
405 | xfs_qm_dqrele(ip->i_pdquot); | |
406 | ip->i_pdquot = NULL; | |
407 | } | |
1da177e4 LT |
408 | } |
409 | ||
cd56a39a DC |
410 | struct xfs_qm_isolate { |
411 | struct list_head buffers; | |
412 | struct list_head dispose; | |
413 | }; | |
414 | ||
415 | static enum lru_status | |
416 | xfs_qm_dquot_isolate( | |
417 | struct list_head *item, | |
3f97b163 | 418 | struct list_lru_one *lru, |
cd56a39a DC |
419 | spinlock_t *lru_lock, |
420 | void *arg) | |
bf1ed383 | 421 | __releases(lru_lock) __acquires(lru_lock) |
cd56a39a DC |
422 | { |
423 | struct xfs_dquot *dqp = container_of(item, | |
424 | struct xfs_dquot, q_lru); | |
425 | struct xfs_qm_isolate *isol = arg; | |
426 | ||
427 | if (!xfs_dqlock_nowait(dqp)) | |
428 | goto out_miss_busy; | |
429 | ||
430 | /* | |
431 | * This dquot has acquired a reference in the meantime remove it from | |
432 | * the freelist and try again. | |
433 | */ | |
434 | if (dqp->q_nrefs) { | |
435 | xfs_dqunlock(dqp); | |
ff6d6af2 | 436 | XFS_STATS_INC(dqp->q_mount, xs_qm_dqwants); |
cd56a39a DC |
437 | |
438 | trace_xfs_dqreclaim_want(dqp); | |
3f97b163 | 439 | list_lru_isolate(lru, &dqp->q_lru); |
ff6d6af2 | 440 | XFS_STATS_DEC(dqp->q_mount, xs_qm_dquot_unused); |
35163417 | 441 | return LRU_REMOVED; |
cd56a39a DC |
442 | } |
443 | ||
444 | /* | |
445 | * If the dquot is dirty, flush it. If it's already being flushed, just | |
446 | * skip it so there is time for the IO to complete before we try to | |
447 | * reclaim it again on the next LRU pass. | |
448 | */ | |
449 | if (!xfs_dqflock_nowait(dqp)) { | |
450 | xfs_dqunlock(dqp); | |
451 | goto out_miss_busy; | |
452 | } | |
453 | ||
454 | if (XFS_DQ_IS_DIRTY(dqp)) { | |
455 | struct xfs_buf *bp = NULL; | |
456 | int error; | |
457 | ||
458 | trace_xfs_dqreclaim_dirty(dqp); | |
459 | ||
460 | /* we have to drop the LRU lock to flush the dquot */ | |
461 | spin_unlock(lru_lock); | |
462 | ||
463 | error = xfs_qm_dqflush(dqp, &bp); | |
609001bc | 464 | if (error) |
cd56a39a | 465 | goto out_unlock_dirty; |
cd56a39a DC |
466 | |
467 | xfs_buf_delwri_queue(bp, &isol->buffers); | |
468 | xfs_buf_relse(bp); | |
469 | goto out_unlock_dirty; | |
470 | } | |
471 | xfs_dqfunlock(dqp); | |
472 | ||
473 | /* | |
474 | * Prevent lookups now that we are past the point of no return. | |
475 | */ | |
476 | dqp->dq_flags |= XFS_DQ_FREEING; | |
477 | xfs_dqunlock(dqp); | |
478 | ||
479 | ASSERT(dqp->q_nrefs == 0); | |
3f97b163 | 480 | list_lru_isolate_move(lru, &dqp->q_lru, &isol->dispose); |
ff6d6af2 | 481 | XFS_STATS_DEC(dqp->q_mount, xs_qm_dquot_unused); |
cd56a39a | 482 | trace_xfs_dqreclaim_done(dqp); |
ff6d6af2 | 483 | XFS_STATS_INC(dqp->q_mount, xs_qm_dqreclaims); |
35163417 | 484 | return LRU_REMOVED; |
cd56a39a DC |
485 | |
486 | out_miss_busy: | |
487 | trace_xfs_dqreclaim_busy(dqp); | |
ff6d6af2 | 488 | XFS_STATS_INC(dqp->q_mount, xs_qm_dqreclaim_misses); |
35163417 | 489 | return LRU_SKIP; |
cd56a39a DC |
490 | |
491 | out_unlock_dirty: | |
492 | trace_xfs_dqreclaim_busy(dqp); | |
ff6d6af2 | 493 | XFS_STATS_INC(dqp->q_mount, xs_qm_dqreclaim_misses); |
35163417 DC |
494 | xfs_dqunlock(dqp); |
495 | spin_lock(lru_lock); | |
496 | return LRU_RETRY; | |
cd56a39a DC |
497 | } |
498 | ||
2f5b56f8 | 499 | static unsigned long |
cd56a39a DC |
500 | xfs_qm_shrink_scan( |
501 | struct shrinker *shrink, | |
502 | struct shrink_control *sc) | |
503 | { | |
504 | struct xfs_quotainfo *qi = container_of(shrink, | |
505 | struct xfs_quotainfo, qi_shrinker); | |
506 | struct xfs_qm_isolate isol; | |
2f5b56f8 | 507 | unsigned long freed; |
cd56a39a | 508 | int error; |
cd56a39a | 509 | |
d0164adc | 510 | if ((sc->gfp_mask & (__GFP_FS|__GFP_DIRECT_RECLAIM)) != (__GFP_FS|__GFP_DIRECT_RECLAIM)) |
cd56a39a DC |
511 | return 0; |
512 | ||
513 | INIT_LIST_HEAD(&isol.buffers); | |
514 | INIT_LIST_HEAD(&isol.dispose); | |
515 | ||
503c358c VD |
516 | freed = list_lru_shrink_walk(&qi->qi_lru, sc, |
517 | xfs_qm_dquot_isolate, &isol); | |
cd56a39a DC |
518 | |
519 | error = xfs_buf_delwri_submit(&isol.buffers); | |
520 | if (error) | |
521 | xfs_warn(NULL, "%s: dquot reclaim failed", __func__); | |
522 | ||
523 | while (!list_empty(&isol.dispose)) { | |
524 | struct xfs_dquot *dqp; | |
525 | ||
526 | dqp = list_first_entry(&isol.dispose, struct xfs_dquot, q_lru); | |
527 | list_del_init(&dqp->q_lru); | |
528 | xfs_qm_dqfree_one(dqp); | |
529 | } | |
530 | ||
531 | return freed; | |
532 | } | |
533 | ||
2f5b56f8 | 534 | static unsigned long |
cd56a39a DC |
535 | xfs_qm_shrink_count( |
536 | struct shrinker *shrink, | |
537 | struct shrink_control *sc) | |
538 | { | |
539 | struct xfs_quotainfo *qi = container_of(shrink, | |
540 | struct xfs_quotainfo, qi_shrinker); | |
541 | ||
503c358c | 542 | return list_lru_shrink_count(&qi->qi_lru, sc); |
cd56a39a DC |
543 | } |
544 | ||
be607946 CM |
545 | STATIC void |
546 | xfs_qm_set_defquota( | |
c072fbef PR |
547 | struct xfs_mount *mp, |
548 | uint type, | |
549 | struct xfs_quotainfo *qinf) | |
be607946 | 550 | { |
aefe69a4 PR |
551 | struct xfs_dquot *dqp; |
552 | struct xfs_def_quota *defq; | |
eac69e16 | 553 | struct xfs_disk_dquot *ddqp; |
be607946 CM |
554 | int error; |
555 | ||
114e73cc | 556 | error = xfs_qm_dqget_uncached(mp, 0, type, &dqp); |
eac69e16 DW |
557 | if (error) |
558 | return; | |
be607946 | 559 | |
eac69e16 | 560 | ddqp = &dqp->q_core; |
ce6e7e79 | 561 | defq = xfs_get_defquota(qinf, xfs_dquot_type(dqp)); |
be607946 | 562 | |
eac69e16 DW |
563 | /* |
564 | * Timers and warnings have been already set, let's just set the | |
565 | * default limits for this quota type | |
566 | */ | |
567 | defq->bhardlimit = be64_to_cpu(ddqp->d_blk_hardlimit); | |
568 | defq->bsoftlimit = be64_to_cpu(ddqp->d_blk_softlimit); | |
569 | defq->ihardlimit = be64_to_cpu(ddqp->d_ino_hardlimit); | |
570 | defq->isoftlimit = be64_to_cpu(ddqp->d_ino_softlimit); | |
571 | defq->rtbhardlimit = be64_to_cpu(ddqp->d_rtb_hardlimit); | |
572 | defq->rtbsoftlimit = be64_to_cpu(ddqp->d_rtb_softlimit); | |
573 | xfs_qm_dqdestroy(dqp); | |
574 | } | |
575 | ||
576 | /* Initialize quota time limits from the root dquot. */ | |
577 | static void | |
578 | xfs_qm_init_timelimits( | |
579 | struct xfs_mount *mp, | |
e850301f | 580 | uint type) |
eac69e16 | 581 | { |
e850301f ES |
582 | struct xfs_quotainfo *qinf = mp->m_quotainfo; |
583 | struct xfs_def_quota *defq; | |
eac69e16 DW |
584 | struct xfs_disk_dquot *ddqp; |
585 | struct xfs_dquot *dqp; | |
eac69e16 DW |
586 | int error; |
587 | ||
e850301f ES |
588 | defq = xfs_get_defquota(qinf, type); |
589 | ||
590 | defq->btimelimit = XFS_QM_BTIMELIMIT; | |
591 | defq->itimelimit = XFS_QM_ITIMELIMIT; | |
592 | defq->rtbtimelimit = XFS_QM_RTBTIMELIMIT; | |
593 | defq->bwarnlimit = XFS_QM_BWARNLIMIT; | |
594 | defq->iwarnlimit = XFS_QM_IWARNLIMIT; | |
595 | defq->rtbwarnlimit = XFS_QM_RTBWARNLIMIT; | |
eac69e16 DW |
596 | |
597 | /* | |
598 | * We try to get the limits from the superuser's limits fields. | |
599 | * This is quite hacky, but it is standard quota practice. | |
600 | * | |
601 | * Since we may not have done a quotacheck by this point, just read | |
602 | * the dquot without attaching it to any hashtables or lists. | |
eac69e16 | 603 | */ |
eac69e16 DW |
604 | error = xfs_qm_dqget_uncached(mp, 0, type, &dqp); |
605 | if (error) | |
606 | return; | |
607 | ||
608 | ddqp = &dqp->q_core; | |
e850301f | 609 | |
eac69e16 DW |
610 | /* |
611 | * The warnings and timers set the grace period given to | |
612 | * a user or group before he or she can not perform any | |
613 | * more writing. If it is zero, a default is used. | |
614 | */ | |
615 | if (ddqp->d_btimer) | |
e850301f | 616 | defq->btimelimit = be32_to_cpu(ddqp->d_btimer); |
eac69e16 | 617 | if (ddqp->d_itimer) |
e850301f | 618 | defq->itimelimit = be32_to_cpu(ddqp->d_itimer); |
eac69e16 | 619 | if (ddqp->d_rtbtimer) |
e850301f | 620 | defq->rtbtimelimit = be32_to_cpu(ddqp->d_rtbtimer); |
eac69e16 | 621 | if (ddqp->d_bwarns) |
e850301f | 622 | defq->bwarnlimit = be16_to_cpu(ddqp->d_bwarns); |
eac69e16 | 623 | if (ddqp->d_iwarns) |
e850301f | 624 | defq->iwarnlimit = be16_to_cpu(ddqp->d_iwarns); |
eac69e16 | 625 | if (ddqp->d_rtbwarns) |
e850301f | 626 | defq->rtbwarnlimit = be16_to_cpu(ddqp->d_rtbwarns); |
eac69e16 DW |
627 | |
628 | xfs_qm_dqdestroy(dqp); | |
be607946 CM |
629 | } |
630 | ||
1da177e4 LT |
631 | /* |
632 | * This initializes all the quota information that's kept in the | |
633 | * mount structure | |
634 | */ | |
ba0f32d4 | 635 | STATIC int |
1da177e4 | 636 | xfs_qm_init_quotainfo( |
114e73cc | 637 | struct xfs_mount *mp) |
1da177e4 | 638 | { |
114e73cc | 639 | struct xfs_quotainfo *qinf; |
114e73cc | 640 | int error; |
1da177e4 LT |
641 | |
642 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
643 | ||
c072fbef | 644 | qinf = mp->m_quotainfo = kmem_zalloc(sizeof(struct xfs_quotainfo), 0); |
1da177e4 | 645 | |
2451337d | 646 | error = list_lru_init(&qinf->qi_lru); |
ee4eec47 DC |
647 | if (error) |
648 | goto out_free_qinf; | |
5ca302c8 | 649 | |
1da177e4 LT |
650 | /* |
651 | * See if quotainodes are setup, and if not, allocate them, | |
652 | * and change the superblock accordingly. | |
653 | */ | |
ee4eec47 DC |
654 | error = xfs_qm_init_quotainos(mp); |
655 | if (error) | |
656 | goto out_free_lru; | |
1da177e4 | 657 | |
9f920f11 CH |
658 | INIT_RADIX_TREE(&qinf->qi_uquota_tree, GFP_NOFS); |
659 | INIT_RADIX_TREE(&qinf->qi_gquota_tree, GFP_NOFS); | |
92f8ff73 | 660 | INIT_RADIX_TREE(&qinf->qi_pquota_tree, GFP_NOFS); |
9f920f11 CH |
661 | mutex_init(&qinf->qi_tree_lock); |
662 | ||
1da177e4 | 663 | /* mutex used to serialize quotaoffs */ |
794ee1ba | 664 | mutex_init(&qinf->qi_quotaofflock); |
1da177e4 LT |
665 | |
666 | /* Precalc some constants */ | |
667 | qinf->qi_dqchunklen = XFS_FSB_TO_BB(mp, XFS_DQUOT_CLUSTER_SIZE_FSB); | |
6ea94bb5 | 668 | qinf->qi_dqperchunk = xfs_calc_dquots_per_chunk(qinf->qi_dqchunklen); |
1da177e4 LT |
669 | |
670 | mp->m_qflags |= (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_CHKD); | |
671 | ||
e850301f ES |
672 | xfs_qm_init_timelimits(mp, XFS_DQ_USER); |
673 | xfs_qm_init_timelimits(mp, XFS_DQ_GROUP); | |
674 | xfs_qm_init_timelimits(mp, XFS_DQ_PROJ); | |
1da177e4 | 675 | |
be607946 CM |
676 | if (XFS_IS_UQUOTA_RUNNING(mp)) |
677 | xfs_qm_set_defquota(mp, XFS_DQ_USER, qinf); | |
678 | if (XFS_IS_GQUOTA_RUNNING(mp)) | |
679 | xfs_qm_set_defquota(mp, XFS_DQ_GROUP, qinf); | |
680 | if (XFS_IS_PQUOTA_RUNNING(mp)) | |
681 | xfs_qm_set_defquota(mp, XFS_DQ_PROJ, qinf); | |
682 | ||
cd56a39a DC |
683 | qinf->qi_shrinker.count_objects = xfs_qm_shrink_count; |
684 | qinf->qi_shrinker.scan_objects = xfs_qm_shrink_scan; | |
f8739c3c | 685 | qinf->qi_shrinker.seeks = DEFAULT_SEEKS; |
cd56a39a | 686 | qinf->qi_shrinker.flags = SHRINKER_NUMA_AWARE; |
3a3882ff AK |
687 | |
688 | error = register_shrinker(&qinf->qi_shrinker); | |
689 | if (error) | |
690 | goto out_free_inos; | |
691 | ||
014c2544 | 692 | return 0; |
ee4eec47 | 693 | |
3a3882ff AK |
694 | out_free_inos: |
695 | mutex_destroy(&qinf->qi_quotaofflock); | |
696 | mutex_destroy(&qinf->qi_tree_lock); | |
697 | xfs_qm_destroy_quotainos(qinf); | |
ee4eec47 DC |
698 | out_free_lru: |
699 | list_lru_destroy(&qinf->qi_lru); | |
700 | out_free_qinf: | |
701 | kmem_free(qinf); | |
702 | mp->m_quotainfo = NULL; | |
703 | return error; | |
1da177e4 LT |
704 | } |
705 | ||
1da177e4 LT |
706 | /* |
707 | * Gets called when unmounting a filesystem or when all quotas get | |
708 | * turned off. | |
709 | * This purges the quota inodes, destroys locks and frees itself. | |
710 | */ | |
711 | void | |
712 | xfs_qm_destroy_quotainfo( | |
c072fbef | 713 | struct xfs_mount *mp) |
1da177e4 | 714 | { |
c072fbef | 715 | struct xfs_quotainfo *qi; |
1da177e4 LT |
716 | |
717 | qi = mp->m_quotainfo; | |
718 | ASSERT(qi != NULL); | |
1da177e4 | 719 | |
f8739c3c | 720 | unregister_shrinker(&qi->qi_shrinker); |
f5e1dd34 | 721 | list_lru_destroy(&qi->qi_lru); |
3a3882ff | 722 | xfs_qm_destroy_quotainos(qi); |
21968815 | 723 | mutex_destroy(&qi->qi_tree_lock); |
1da177e4 | 724 | mutex_destroy(&qi->qi_quotaofflock); |
f0e2d93c | 725 | kmem_free(qi); |
1da177e4 LT |
726 | mp->m_quotainfo = NULL; |
727 | } | |
728 | ||
1da177e4 LT |
729 | /* |
730 | * Create an inode and return with a reference already taken, but unlocked | |
731 | * This is how we create quota inodes | |
732 | */ | |
733 | STATIC int | |
734 | xfs_qm_qino_alloc( | |
735 | xfs_mount_t *mp, | |
736 | xfs_inode_t **ip, | |
1da177e4 LT |
737 | uint flags) |
738 | { | |
739 | xfs_trans_t *tp; | |
740 | int error; | |
58c90473 | 741 | bool need_alloc = true; |
1da177e4 | 742 | |
d892d586 CS |
743 | *ip = NULL; |
744 | /* | |
745 | * With superblock that doesn't have separate pquotino, we | |
746 | * share an inode between gquota and pquota. If the on-disk | |
747 | * superblock has GQUOTA and the filesystem is now mounted | |
748 | * with PQUOTA, just use sb_gquotino for sb_pquotino and | |
749 | * vice-versa. | |
750 | */ | |
751 | if (!xfs_sb_version_has_pquotino(&mp->m_sb) && | |
752 | (flags & (XFS_QMOPT_PQUOTA|XFS_QMOPT_GQUOTA))) { | |
753 | xfs_ino_t ino = NULLFSINO; | |
754 | ||
755 | if ((flags & XFS_QMOPT_PQUOTA) && | |
756 | (mp->m_sb.sb_gquotino != NULLFSINO)) { | |
757 | ino = mp->m_sb.sb_gquotino; | |
a71895c5 DW |
758 | if (XFS_IS_CORRUPT(mp, |
759 | mp->m_sb.sb_pquotino != NULLFSINO)) | |
a5155b87 | 760 | return -EFSCORRUPTED; |
d892d586 CS |
761 | } else if ((flags & XFS_QMOPT_GQUOTA) && |
762 | (mp->m_sb.sb_pquotino != NULLFSINO)) { | |
763 | ino = mp->m_sb.sb_pquotino; | |
a71895c5 DW |
764 | if (XFS_IS_CORRUPT(mp, |
765 | mp->m_sb.sb_gquotino != NULLFSINO)) | |
a5155b87 | 766 | return -EFSCORRUPTED; |
d892d586 CS |
767 | } |
768 | if (ino != NULLFSINO) { | |
769 | error = xfs_iget(mp, NULL, ino, 0, 0, ip); | |
770 | if (error) | |
771 | return error; | |
772 | mp->m_sb.sb_gquotino = NULLFSINO; | |
773 | mp->m_sb.sb_pquotino = NULLFSINO; | |
58c90473 | 774 | need_alloc = false; |
d892d586 CS |
775 | } |
776 | } | |
777 | ||
253f4911 | 778 | error = xfs_trans_alloc(mp, &M_RES(mp)->tr_create, |
fb353ff1 KX |
779 | need_alloc ? XFS_QM_QINOCREATE_SPACE_RES(mp) : 0, |
780 | 0, 0, &tp); | |
253f4911 | 781 | if (error) |
014c2544 | 782 | return error; |
1da177e4 | 783 | |
58c90473 | 784 | if (need_alloc) { |
c959025e | 785 | error = xfs_dir_ialloc(&tp, NULL, S_IFREG, 1, 0, 0, ip); |
d892d586 | 786 | if (error) { |
4906e215 | 787 | xfs_trans_cancel(tp); |
d892d586 CS |
788 | return error; |
789 | } | |
1da177e4 LT |
790 | } |
791 | ||
1da177e4 LT |
792 | /* |
793 | * Make the changes in the superblock, and log those too. | |
794 | * sbfields arg may contain fields other than *QUOTINO; | |
795 | * VERSIONNUM for example. | |
796 | */ | |
3685c2a1 | 797 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 798 | if (flags & XFS_QMOPT_SBVERSION) { |
62118709 | 799 | ASSERT(!xfs_sb_version_hasquota(&mp->m_sb)); |
1da177e4 | 800 | |
62118709 | 801 | xfs_sb_version_addquota(&mp->m_sb); |
1da177e4 LT |
802 | mp->m_sb.sb_uquotino = NULLFSINO; |
803 | mp->m_sb.sb_gquotino = NULLFSINO; | |
d892d586 | 804 | mp->m_sb.sb_pquotino = NULLFSINO; |
1da177e4 | 805 | |
d892d586 CS |
806 | /* qflags will get updated fully _after_ quotacheck */ |
807 | mp->m_sb.sb_qflags = mp->m_qflags & XFS_ALL_QUOTA_ACCT; | |
1da177e4 LT |
808 | } |
809 | if (flags & XFS_QMOPT_UQUOTA) | |
810 | mp->m_sb.sb_uquotino = (*ip)->i_ino; | |
d892d586 | 811 | else if (flags & XFS_QMOPT_GQUOTA) |
1da177e4 | 812 | mp->m_sb.sb_gquotino = (*ip)->i_ino; |
d892d586 CS |
813 | else |
814 | mp->m_sb.sb_pquotino = (*ip)->i_ino; | |
3685c2a1 | 815 | spin_unlock(&mp->m_sb_lock); |
61e63ecb | 816 | xfs_log_sb(tp); |
1da177e4 | 817 | |
70393313 | 818 | error = xfs_trans_commit(tp); |
58c90473 DC |
819 | if (error) { |
820 | ASSERT(XFS_FORCED_SHUTDOWN(mp)); | |
53487786 | 821 | xfs_alert(mp, "%s failed (error %d)!", __func__, error); |
1da177e4 | 822 | } |
58c90473 DC |
823 | if (need_alloc) |
824 | xfs_finish_inode_setup(*ip); | |
825 | return error; | |
1da177e4 LT |
826 | } |
827 | ||
828 | ||
5b139738 | 829 | STATIC void |
1da177e4 LT |
830 | xfs_qm_reset_dqcounts( |
831 | xfs_mount_t *mp, | |
832 | xfs_buf_t *bp, | |
833 | xfs_dqid_t id, | |
834 | uint type) | |
835 | { | |
6fcdc59d | 836 | struct xfs_dqblk *dqb; |
1da177e4 | 837 | int j; |
eebf3cab | 838 | xfs_failaddr_t fa; |
1da177e4 | 839 | |
0b1b213f CH |
840 | trace_xfs_reset_dqcounts(bp, _RET_IP_); |
841 | ||
1da177e4 LT |
842 | /* |
843 | * Reset all counters and timers. They'll be | |
844 | * started afresh by xfs_qm_quotacheck. | |
845 | */ | |
846 | #ifdef DEBUG | |
90115407 ES |
847 | j = (int)XFS_FSB_TO_B(mp, XFS_DQUOT_CLUSTER_SIZE_FSB) / |
848 | sizeof(xfs_dqblk_t); | |
8a7b8a89 | 849 | ASSERT(mp->m_quotainfo->qi_dqperchunk == j); |
1da177e4 | 850 | #endif |
6fcdc59d | 851 | dqb = bp->b_addr; |
8a7b8a89 | 852 | for (j = 0; j < mp->m_quotainfo->qi_dqperchunk; j++) { |
6fcdc59d DC |
853 | struct xfs_disk_dquot *ddq; |
854 | ||
855 | ddq = (struct xfs_disk_dquot *)&dqb[j]; | |
856 | ||
1da177e4 LT |
857 | /* |
858 | * Do a sanity check, and if needed, repair the dqblk. Don't | |
859 | * output any warnings because it's perfectly possible to | |
eebf3cab DW |
860 | * find uninitialised dquot blks. See comment in |
861 | * xfs_dquot_verify. | |
1da177e4 | 862 | */ |
7224fa48 | 863 | fa = xfs_dqblk_verify(mp, &dqb[j], id + j, type); |
eebf3cab | 864 | if (fa) |
48fa1db8 | 865 | xfs_dqblk_repair(mp, &dqb[j], id + j, type); |
eeea7980 | 866 | |
dfcc70a8 JK |
867 | /* |
868 | * Reset type in case we are reusing group quota file for | |
869 | * project quotas or vice versa | |
870 | */ | |
871 | ddq->d_flags = type; | |
1149d96a CH |
872 | ddq->d_bcount = 0; |
873 | ddq->d_icount = 0; | |
874 | ddq->d_rtbcount = 0; | |
5885539f DW |
875 | |
876 | /* | |
877 | * dquot id 0 stores the default grace period and the maximum | |
878 | * warning limit that were set by the administrator, so we | |
879 | * should not reset them. | |
880 | */ | |
881 | if (ddq->d_id != 0) { | |
882 | ddq->d_btimer = 0; | |
883 | ddq->d_itimer = 0; | |
884 | ddq->d_rtbtimer = 0; | |
885 | ddq->d_bwarns = 0; | |
886 | ddq->d_iwarns = 0; | |
887 | ddq->d_rtbwarns = 0; | |
888 | } | |
6fcdc59d DC |
889 | |
890 | if (xfs_sb_version_hascrc(&mp->m_sb)) { | |
891 | xfs_update_cksum((char *)&dqb[j], | |
892 | sizeof(struct xfs_dqblk), | |
893 | XFS_DQUOT_CRC_OFF); | |
894 | } | |
1da177e4 | 895 | } |
1da177e4 LT |
896 | } |
897 | ||
898 | STATIC int | |
28b9060b | 899 | xfs_qm_reset_dqcounts_all( |
43ff2122 CH |
900 | struct xfs_mount *mp, |
901 | xfs_dqid_t firstid, | |
902 | xfs_fsblock_t bno, | |
903 | xfs_filblks_t blkcnt, | |
904 | uint flags, | |
905 | struct list_head *buffer_list) | |
1da177e4 | 906 | { |
43ff2122 CH |
907 | struct xfs_buf *bp; |
908 | int error; | |
909 | int type; | |
1da177e4 LT |
910 | |
911 | ASSERT(blkcnt > 0); | |
c8ad20ff NS |
912 | type = flags & XFS_QMOPT_UQUOTA ? XFS_DQ_USER : |
913 | (flags & XFS_QMOPT_PQUOTA ? XFS_DQ_PROJ : XFS_DQ_GROUP); | |
1da177e4 LT |
914 | error = 0; |
915 | ||
916 | /* | |
917 | * Blkcnt arg can be a very big number, and might even be | |
918 | * larger than the log itself. So, we have to break it up into | |
919 | * manageable-sized transactions. | |
920 | * Note that we don't start a permanent transaction here; we might | |
921 | * not be able to get a log reservation for the whole thing up front, | |
922 | * and we don't really care to either, because we just discard | |
923 | * everything if we were to crash in the middle of this loop. | |
924 | */ | |
925 | while (blkcnt--) { | |
926 | error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, | |
927 | XFS_FSB_TO_DADDR(mp, bno), | |
c6319198 | 928 | mp->m_quotainfo->qi_dqchunklen, 0, &bp, |
1813dd64 | 929 | &xfs_dquot_buf_ops); |
1da177e4 | 930 | |
3fe58f30 | 931 | /* |
6fcdc59d DC |
932 | * CRC and validation errors will return a EFSCORRUPTED here. If |
933 | * this occurs, re-read without CRC validation so that we can | |
934 | * repair the damage via xfs_qm_reset_dqcounts(). This process | |
935 | * will leave a trace in the log indicating corruption has | |
936 | * been detected. | |
3fe58f30 | 937 | */ |
2451337d | 938 | if (error == -EFSCORRUPTED) { |
6fcdc59d DC |
939 | error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, |
940 | XFS_FSB_TO_DADDR(mp, bno), | |
941 | mp->m_quotainfo->qi_dqchunklen, 0, &bp, | |
942 | NULL); | |
943 | } | |
944 | ||
945 | if (error) | |
946 | break; | |
947 | ||
5fd364fe DC |
948 | /* |
949 | * A corrupt buffer might not have a verifier attached, so | |
950 | * make sure we have the correct one attached before writeback | |
951 | * occurs. | |
952 | */ | |
953 | bp->b_ops = &xfs_dquot_buf_ops; | |
5b139738 | 954 | xfs_qm_reset_dqcounts(mp, bp, firstid, type); |
43ff2122 | 955 | xfs_buf_delwri_queue(bp, buffer_list); |
61551f1e | 956 | xfs_buf_relse(bp); |
6fcdc59d DC |
957 | |
958 | /* goto the next block. */ | |
1da177e4 | 959 | bno++; |
8a7b8a89 | 960 | firstid += mp->m_quotainfo->qi_dqperchunk; |
1da177e4 | 961 | } |
43ff2122 | 962 | |
014c2544 | 963 | return error; |
1da177e4 LT |
964 | } |
965 | ||
966 | /* | |
28b9060b DW |
967 | * Iterate over all allocated dquot blocks in this quota inode, zeroing all |
968 | * counters for every chunk of dquots that we find. | |
1da177e4 LT |
969 | */ |
970 | STATIC int | |
28b9060b | 971 | xfs_qm_reset_dqcounts_buf( |
43ff2122 CH |
972 | struct xfs_mount *mp, |
973 | struct xfs_inode *qip, | |
974 | uint flags, | |
975 | struct list_head *buffer_list) | |
1da177e4 | 976 | { |
43ff2122 | 977 | struct xfs_bmbt_irec *map; |
1da177e4 LT |
978 | int i, nmaps; /* number of map entries */ |
979 | int error; /* return value */ | |
980 | xfs_fileoff_t lblkno; | |
981 | xfs_filblks_t maxlblkcnt; | |
982 | xfs_dqid_t firstid; | |
983 | xfs_fsblock_t rablkno; | |
984 | xfs_filblks_t rablkcnt; | |
985 | ||
986 | error = 0; | |
987 | /* | |
c41564b5 | 988 | * This looks racy, but we can't keep an inode lock across a |
1da177e4 LT |
989 | * trans_reserve. But, this gets called during quotacheck, and that |
990 | * happens only at mount time which is single threaded. | |
991 | */ | |
992 | if (qip->i_d.di_nblocks == 0) | |
014c2544 | 993 | return 0; |
1da177e4 | 994 | |
707e0dda | 995 | map = kmem_alloc(XFS_DQITER_MAP_SIZE * sizeof(*map), 0); |
1da177e4 LT |
996 | |
997 | lblkno = 0; | |
32972383 | 998 | maxlblkcnt = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes); |
1da177e4 | 999 | do { |
da51d32d CH |
1000 | uint lock_mode; |
1001 | ||
1da177e4 LT |
1002 | nmaps = XFS_DQITER_MAP_SIZE; |
1003 | /* | |
1004 | * We aren't changing the inode itself. Just changing | |
1005 | * some of its data. No new blocks are added here, and | |
1006 | * the inode is never added to the transaction. | |
1007 | */ | |
da51d32d | 1008 | lock_mode = xfs_ilock_data_map_shared(qip); |
5c8ed202 DC |
1009 | error = xfs_bmapi_read(qip, lblkno, maxlblkcnt - lblkno, |
1010 | map, &nmaps, 0); | |
da51d32d | 1011 | xfs_iunlock(qip, lock_mode); |
1da177e4 LT |
1012 | if (error) |
1013 | break; | |
1014 | ||
1015 | ASSERT(nmaps <= XFS_DQITER_MAP_SIZE); | |
1016 | for (i = 0; i < nmaps; i++) { | |
1017 | ASSERT(map[i].br_startblock != DELAYSTARTBLOCK); | |
1018 | ASSERT(map[i].br_blockcount); | |
1019 | ||
1020 | ||
1021 | lblkno += map[i].br_blockcount; | |
1022 | ||
1023 | if (map[i].br_startblock == HOLESTARTBLOCK) | |
1024 | continue; | |
1025 | ||
1026 | firstid = (xfs_dqid_t) map[i].br_startoff * | |
8a7b8a89 | 1027 | mp->m_quotainfo->qi_dqperchunk; |
1da177e4 LT |
1028 | /* |
1029 | * Do a read-ahead on the next extent. | |
1030 | */ | |
1031 | if ((i+1 < nmaps) && | |
1032 | (map[i+1].br_startblock != HOLESTARTBLOCK)) { | |
1033 | rablkcnt = map[i+1].br_blockcount; | |
1034 | rablkno = map[i+1].br_startblock; | |
1035 | while (rablkcnt--) { | |
1a1a3e97 | 1036 | xfs_buf_readahead(mp->m_ddev_targp, |
1da177e4 | 1037 | XFS_FSB_TO_DADDR(mp, rablkno), |
c3f8fc73 | 1038 | mp->m_quotainfo->qi_dqchunklen, |
5fd364fe | 1039 | &xfs_dquot_buf_ops); |
1da177e4 LT |
1040 | rablkno++; |
1041 | } | |
1042 | } | |
1043 | /* | |
1044 | * Iterate thru all the blks in the extent and | |
1045 | * reset the counters of all the dquots inside them. | |
1046 | */ | |
28b9060b | 1047 | error = xfs_qm_reset_dqcounts_all(mp, firstid, |
43ff2122 CH |
1048 | map[i].br_startblock, |
1049 | map[i].br_blockcount, | |
1050 | flags, buffer_list); | |
1051 | if (error) | |
1052 | goto out; | |
1da177e4 | 1053 | } |
1da177e4 LT |
1054 | } while (nmaps > 0); |
1055 | ||
43ff2122 | 1056 | out: |
f0e2d93c | 1057 | kmem_free(map); |
014c2544 | 1058 | return error; |
1da177e4 LT |
1059 | } |
1060 | ||
1061 | /* | |
1062 | * Called by dqusage_adjust in doing a quotacheck. | |
52fda114 CH |
1063 | * |
1064 | * Given the inode, and a dquot id this updates both the incore dqout as well | |
1065 | * as the buffer copy. This is so that once the quotacheck is done, we can | |
1066 | * just log all the buffers, as opposed to logging numerous updates to | |
1067 | * individual dquots. | |
1da177e4 | 1068 | */ |
52fda114 | 1069 | STATIC int |
1da177e4 | 1070 | xfs_qm_quotacheck_dqadjust( |
52fda114 | 1071 | struct xfs_inode *ip, |
52fda114 | 1072 | uint type, |
1da177e4 LT |
1073 | xfs_qcnt_t nblks, |
1074 | xfs_qcnt_t rtblks) | |
1075 | { | |
52fda114 CH |
1076 | struct xfs_mount *mp = ip->i_mount; |
1077 | struct xfs_dquot *dqp; | |
0fcef127 | 1078 | xfs_dqid_t id; |
52fda114 CH |
1079 | int error; |
1080 | ||
0fcef127 | 1081 | id = xfs_qm_id_for_quotatype(ip, type); |
30ab2dcf | 1082 | error = xfs_qm_dqget(mp, id, type, true, &dqp); |
52fda114 CH |
1083 | if (error) { |
1084 | /* | |
1085 | * Shouldn't be able to turn off quotas here. | |
1086 | */ | |
2451337d DC |
1087 | ASSERT(error != -ESRCH); |
1088 | ASSERT(error != -ENOENT); | |
52fda114 CH |
1089 | return error; |
1090 | } | |
0b1b213f CH |
1091 | |
1092 | trace_xfs_dqadjust(dqp); | |
1093 | ||
1da177e4 LT |
1094 | /* |
1095 | * Adjust the inode count and the block count to reflect this inode's | |
1096 | * resource usage. | |
1097 | */ | |
413d57c9 | 1098 | be64_add_cpu(&dqp->q_core.d_icount, 1); |
1da177e4 LT |
1099 | dqp->q_res_icount++; |
1100 | if (nblks) { | |
413d57c9 | 1101 | be64_add_cpu(&dqp->q_core.d_bcount, nblks); |
1da177e4 LT |
1102 | dqp->q_res_bcount += nblks; |
1103 | } | |
1104 | if (rtblks) { | |
413d57c9 | 1105 | be64_add_cpu(&dqp->q_core.d_rtbcount, rtblks); |
1da177e4 LT |
1106 | dqp->q_res_rtbcount += rtblks; |
1107 | } | |
1108 | ||
1109 | /* | |
1110 | * Set default limits, adjust timers (since we changed usages) | |
191f8488 CH |
1111 | * |
1112 | * There are no timers for the default values set in the root dquot. | |
1da177e4 | 1113 | */ |
191f8488 | 1114 | if (dqp->q_core.d_id) { |
4b6eae2e | 1115 | xfs_qm_adjust_dqlimits(mp, dqp); |
3dbb9aa3 | 1116 | xfs_qm_adjust_dqtimers(mp, dqp); |
1da177e4 LT |
1117 | } |
1118 | ||
1119 | dqp->dq_flags |= XFS_DQ_DIRTY; | |
52fda114 CH |
1120 | xfs_qm_dqput(dqp); |
1121 | return 0; | |
1da177e4 LT |
1122 | } |
1123 | ||
1da177e4 LT |
1124 | /* |
1125 | * callback routine supplied to bulkstat(). Given an inumber, find its | |
1126 | * dquots and update them to account for resources taken by that inode. | |
1127 | */ | |
1128 | /* ARGSUSED */ | |
1129 | STATIC int | |
1130 | xfs_qm_dqusage_adjust( | |
ebd126a6 DW |
1131 | struct xfs_mount *mp, |
1132 | struct xfs_trans *tp, | |
1133 | xfs_ino_t ino, | |
1134 | void *data) | |
1da177e4 | 1135 | { |
ebd126a6 DW |
1136 | struct xfs_inode *ip; |
1137 | xfs_qcnt_t nblks; | |
1138 | xfs_filblks_t rtblks = 0; /* total rt blks */ | |
1139 | int error; | |
1da177e4 LT |
1140 | |
1141 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
1142 | ||
1143 | /* | |
1144 | * rootino must have its resources accounted for, not so with the quota | |
1145 | * inodes. | |
1146 | */ | |
ebd126a6 DW |
1147 | if (xfs_is_quota_inode(&mp->m_sb, ino)) |
1148 | return 0; | |
1da177e4 LT |
1149 | |
1150 | /* | |
0fcef127 DW |
1151 | * We don't _need_ to take the ilock EXCL here because quotacheck runs |
1152 | * at mount time and therefore nobody will be racing chown/chproj. | |
1da177e4 | 1153 | */ |
ebd126a6 DW |
1154 | error = xfs_iget(mp, tp, ino, XFS_IGET_DONTCACHE, 0, &ip); |
1155 | if (error == -EINVAL || error == -ENOENT) | |
1156 | return 0; | |
1157 | if (error) | |
014c2544 | 1158 | return error; |
1da177e4 | 1159 | |
52fda114 | 1160 | ASSERT(ip->i_delayed_blks == 0); |
1da177e4 | 1161 | |
52fda114 | 1162 | if (XFS_IS_REALTIME_INODE(ip)) { |
8bfadd8d CH |
1163 | struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK); |
1164 | ||
1165 | if (!(ifp->if_flags & XFS_IFEXTENTS)) { | |
ebd126a6 | 1166 | error = xfs_iread_extents(tp, ip, XFS_DATA_FORK); |
8bfadd8d CH |
1167 | if (error) |
1168 | goto error0; | |
1169 | } | |
1170 | ||
1171 | xfs_bmap_count_leaves(ifp, &rtblks); | |
1da177e4 | 1172 | } |
1da177e4 | 1173 | |
52fda114 | 1174 | nblks = (xfs_qcnt_t)ip->i_d.di_nblocks - rtblks; |
1da177e4 LT |
1175 | |
1176 | /* | |
1177 | * Add the (disk blocks and inode) resources occupied by this | |
1178 | * inode to its dquots. We do this adjustment in the incore dquot, | |
1179 | * and also copy the changes to its buffer. | |
1180 | * We don't care about putting these changes in a transaction | |
1181 | * envelope because if we crash in the middle of a 'quotacheck' | |
1182 | * we have to start from the beginning anyway. | |
1183 | * Once we're done, we'll log all the dquot bufs. | |
1184 | * | |
c41564b5 | 1185 | * The *QUOTA_ON checks below may look pretty racy, but quotachecks |
1da177e4 LT |
1186 | * and quotaoffs don't race. (Quotachecks happen at mount time only). |
1187 | */ | |
1188 | if (XFS_IS_UQUOTA_ON(mp)) { | |
0fcef127 DW |
1189 | error = xfs_qm_quotacheck_dqadjust(ip, XFS_DQ_USER, nblks, |
1190 | rtblks); | |
52fda114 CH |
1191 | if (error) |
1192 | goto error0; | |
1da177e4 | 1193 | } |
52fda114 CH |
1194 | |
1195 | if (XFS_IS_GQUOTA_ON(mp)) { | |
0fcef127 DW |
1196 | error = xfs_qm_quotacheck_dqadjust(ip, XFS_DQ_GROUP, nblks, |
1197 | rtblks); | |
52fda114 CH |
1198 | if (error) |
1199 | goto error0; | |
1da177e4 | 1200 | } |
1da177e4 | 1201 | |
52fda114 | 1202 | if (XFS_IS_PQUOTA_ON(mp)) { |
0fcef127 DW |
1203 | error = xfs_qm_quotacheck_dqadjust(ip, XFS_DQ_PROJ, nblks, |
1204 | rtblks); | |
52fda114 CH |
1205 | if (error) |
1206 | goto error0; | |
1207 | } | |
1208 | ||
52fda114 | 1209 | error0: |
44a8736b | 1210 | xfs_irele(ip); |
52fda114 | 1211 | return error; |
1da177e4 LT |
1212 | } |
1213 | ||
b84a3a96 CH |
1214 | STATIC int |
1215 | xfs_qm_flush_one( | |
43ff2122 CH |
1216 | struct xfs_dquot *dqp, |
1217 | void *data) | |
b84a3a96 | 1218 | { |
7912e7fe | 1219 | struct xfs_mount *mp = dqp->q_mount; |
43ff2122 | 1220 | struct list_head *buffer_list = data; |
fe7257fd | 1221 | struct xfs_buf *bp = NULL; |
b84a3a96 CH |
1222 | int error = 0; |
1223 | ||
1224 | xfs_dqlock(dqp); | |
1225 | if (dqp->dq_flags & XFS_DQ_FREEING) | |
1226 | goto out_unlock; | |
1227 | if (!XFS_DQ_IS_DIRTY(dqp)) | |
1228 | goto out_unlock; | |
1229 | ||
7912e7fe BF |
1230 | /* |
1231 | * The only way the dquot is already flush locked by the time quotacheck | |
1232 | * gets here is if reclaim flushed it before the dqadjust walk dirtied | |
1233 | * it for the final time. Quotacheck collects all dquot bufs in the | |
1234 | * local delwri queue before dquots are dirtied, so reclaim can't have | |
1235 | * possibly queued it for I/O. The only way out is to push the buffer to | |
1236 | * cycle the flush lock. | |
1237 | */ | |
1238 | if (!xfs_dqflock_nowait(dqp)) { | |
1239 | /* buf is pinned in-core by delwri list */ | |
8925a3dc DC |
1240 | bp = xfs_buf_incore(mp->m_ddev_targp, dqp->q_blkno, |
1241 | mp->m_quotainfo->qi_dqchunklen, 0); | |
7912e7fe BF |
1242 | if (!bp) { |
1243 | error = -EINVAL; | |
1244 | goto out_unlock; | |
1245 | } | |
1246 | xfs_buf_unlock(bp); | |
1247 | ||
1248 | xfs_buf_delwri_pushbuf(bp, buffer_list); | |
1249 | xfs_buf_rele(bp); | |
1250 | ||
1251 | error = -EAGAIN; | |
1252 | goto out_unlock; | |
1253 | } | |
1254 | ||
fe7257fd CH |
1255 | error = xfs_qm_dqflush(dqp, &bp); |
1256 | if (error) | |
1257 | goto out_unlock; | |
b84a3a96 | 1258 | |
43ff2122 | 1259 | xfs_buf_delwri_queue(bp, buffer_list); |
fe7257fd | 1260 | xfs_buf_relse(bp); |
b84a3a96 CH |
1261 | out_unlock: |
1262 | xfs_dqunlock(dqp); | |
1263 | return error; | |
1264 | } | |
1265 | ||
1da177e4 LT |
1266 | /* |
1267 | * Walk thru all the filesystem inodes and construct a consistent view | |
1268 | * of the disk quota world. If the quotacheck fails, disable quotas. | |
1269 | */ | |
eb866bbf | 1270 | STATIC int |
1da177e4 LT |
1271 | xfs_qm_quotacheck( |
1272 | xfs_mount_t *mp) | |
1273 | { | |
ebd126a6 | 1274 | int error, error2; |
113a5683 CS |
1275 | uint flags; |
1276 | LIST_HEAD (buffer_list); | |
1277 | struct xfs_inode *uip = mp->m_quotainfo->qi_uquotaip; | |
1278 | struct xfs_inode *gip = mp->m_quotainfo->qi_gquotaip; | |
92f8ff73 | 1279 | struct xfs_inode *pip = mp->m_quotainfo->qi_pquotaip; |
1da177e4 | 1280 | |
1da177e4 LT |
1281 | flags = 0; |
1282 | ||
92f8ff73 | 1283 | ASSERT(uip || gip || pip); |
1da177e4 LT |
1284 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1285 | ||
0b932ccc | 1286 | xfs_notice(mp, "Quotacheck needed: Please wait."); |
1da177e4 LT |
1287 | |
1288 | /* | |
c8ad20ff | 1289 | * First we go thru all the dquots on disk, USR and GRP/PRJ, and reset |
1da177e4 LT |
1290 | * their counters to zero. We need a clean slate. |
1291 | * We don't log our changes till later. | |
1292 | */ | |
8a7b8a89 | 1293 | if (uip) { |
28b9060b | 1294 | error = xfs_qm_reset_dqcounts_buf(mp, uip, XFS_QMOPT_UQUOTA, |
43ff2122 | 1295 | &buffer_list); |
8a7b8a89 | 1296 | if (error) |
1da177e4 LT |
1297 | goto error_return; |
1298 | flags |= XFS_UQUOTA_CHKD; | |
1299 | } | |
1300 | ||
8a7b8a89 | 1301 | if (gip) { |
28b9060b | 1302 | error = xfs_qm_reset_dqcounts_buf(mp, gip, XFS_QMOPT_GQUOTA, |
43ff2122 | 1303 | &buffer_list); |
8a7b8a89 | 1304 | if (error) |
1da177e4 | 1305 | goto error_return; |
92f8ff73 CS |
1306 | flags |= XFS_GQUOTA_CHKD; |
1307 | } | |
1308 | ||
1309 | if (pip) { | |
28b9060b | 1310 | error = xfs_qm_reset_dqcounts_buf(mp, pip, XFS_QMOPT_PQUOTA, |
92f8ff73 CS |
1311 | &buffer_list); |
1312 | if (error) | |
1313 | goto error_return; | |
1314 | flags |= XFS_PQUOTA_CHKD; | |
1da177e4 LT |
1315 | } |
1316 | ||
13d59a2a DW |
1317 | error = xfs_iwalk_threaded(mp, 0, 0, xfs_qm_dqusage_adjust, 0, true, |
1318 | NULL); | |
ebd126a6 DW |
1319 | if (error) |
1320 | goto error_return; | |
1da177e4 | 1321 | |
4b8879df | 1322 | /* |
b84a3a96 CH |
1323 | * We've made all the changes that we need to make incore. Flush them |
1324 | * down to disk buffers if everything was updated successfully. | |
4b8879df | 1325 | */ |
43ff2122 CH |
1326 | if (XFS_IS_UQUOTA_ON(mp)) { |
1327 | error = xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_flush_one, | |
1328 | &buffer_list); | |
1329 | } | |
b84a3a96 | 1330 | if (XFS_IS_GQUOTA_ON(mp)) { |
43ff2122 CH |
1331 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_flush_one, |
1332 | &buffer_list); | |
b84a3a96 CH |
1333 | if (!error) |
1334 | error = error2; | |
1335 | } | |
1336 | if (XFS_IS_PQUOTA_ON(mp)) { | |
43ff2122 CH |
1337 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_flush_one, |
1338 | &buffer_list); | |
b84a3a96 CH |
1339 | if (!error) |
1340 | error = error2; | |
1341 | } | |
4b8879df | 1342 | |
43ff2122 CH |
1343 | error2 = xfs_buf_delwri_submit(&buffer_list); |
1344 | if (!error) | |
1345 | error = error2; | |
1346 | ||
1da177e4 LT |
1347 | /* |
1348 | * We can get this error if we couldn't do a dquot allocation inside | |
1349 | * xfs_qm_dqusage_adjust (via bulkstat). We don't care about the | |
1350 | * dirty dquots that might be cached, we just want to get rid of them | |
1351 | * and turn quotaoff. The dquots won't be attached to any of the inodes | |
1352 | * at this point (because we intentionally didn't in dqget_noattach). | |
1353 | */ | |
1354 | if (error) { | |
8112e9dc | 1355 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
1da177e4 LT |
1356 | goto error_return; |
1357 | } | |
1da177e4 | 1358 | |
1da177e4 LT |
1359 | /* |
1360 | * If one type of quotas is off, then it will lose its | |
1361 | * quotachecked status, since we won't be doing accounting for | |
1362 | * that type anymore. | |
1363 | */ | |
4177af3a | 1364 | mp->m_qflags &= ~XFS_ALL_QUOTA_CHKD; |
1da177e4 LT |
1365 | mp->m_qflags |= flags; |
1366 | ||
1da177e4 | 1367 | error_return: |
20e8a063 | 1368 | xfs_buf_delwri_cancel(&buffer_list); |
43ff2122 | 1369 | |
1da177e4 | 1370 | if (error) { |
0b932ccc DC |
1371 | xfs_warn(mp, |
1372 | "Quotacheck: Unsuccessful (Error %d): Disabling quotas.", | |
1373 | error); | |
1da177e4 LT |
1374 | /* |
1375 | * We must turn off quotas. | |
1376 | */ | |
1377 | ASSERT(mp->m_quotainfo != NULL); | |
1da177e4 | 1378 | xfs_qm_destroy_quotainfo(mp); |
31d5577b | 1379 | if (xfs_mount_reset_sbqflags(mp)) { |
0b932ccc DC |
1380 | xfs_warn(mp, |
1381 | "Quotacheck: Failed to reset quota flags."); | |
31d5577b | 1382 | } |
0b932ccc DC |
1383 | } else |
1384 | xfs_notice(mp, "Quotacheck: Done."); | |
d99831ff | 1385 | return error; |
1da177e4 LT |
1386 | } |
1387 | ||
eb866bbf JL |
1388 | /* |
1389 | * This is called from xfs_mountfs to start quotas and initialize all | |
1390 | * necessary data structures like quotainfo. This is also responsible for | |
1391 | * running a quotacheck as necessary. We are guaranteed that the superblock | |
1392 | * is consistently read in at this point. | |
1393 | * | |
1394 | * If we fail here, the mount will continue with quota turned off. We don't | |
1395 | * need to inidicate success or failure at all. | |
1396 | */ | |
1397 | void | |
1398 | xfs_qm_mount_quotas( | |
1399 | struct xfs_mount *mp) | |
1400 | { | |
1401 | int error = 0; | |
1402 | uint sbf; | |
1403 | ||
1404 | /* | |
1405 | * If quotas on realtime volumes is not supported, we disable | |
1406 | * quotas immediately. | |
1407 | */ | |
1408 | if (mp->m_sb.sb_rextents) { | |
1409 | xfs_notice(mp, "Cannot turn on quotas for realtime filesystem"); | |
1410 | mp->m_qflags = 0; | |
1411 | goto write_changes; | |
1412 | } | |
1413 | ||
1414 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
1415 | ||
1416 | /* | |
1417 | * Allocate the quotainfo structure inside the mount struct, and | |
1418 | * create quotainode(s), and change/rev superblock if necessary. | |
1419 | */ | |
1420 | error = xfs_qm_init_quotainfo(mp); | |
1421 | if (error) { | |
1422 | /* | |
1423 | * We must turn off quotas. | |
1424 | */ | |
1425 | ASSERT(mp->m_quotainfo == NULL); | |
1426 | mp->m_qflags = 0; | |
1427 | goto write_changes; | |
1428 | } | |
1429 | /* | |
1430 | * If any of the quotas are not consistent, do a quotacheck. | |
1431 | */ | |
1432 | if (XFS_QM_NEED_QUOTACHECK(mp)) { | |
1433 | error = xfs_qm_quotacheck(mp); | |
1434 | if (error) { | |
1435 | /* Quotacheck failed and disabled quotas. */ | |
1436 | return; | |
1437 | } | |
1438 | } | |
1439 | /* | |
1440 | * If one type of quotas is off, then it will lose its | |
1441 | * quotachecked status, since we won't be doing accounting for | |
1442 | * that type anymore. | |
1443 | */ | |
1444 | if (!XFS_IS_UQUOTA_ON(mp)) | |
1445 | mp->m_qflags &= ~XFS_UQUOTA_CHKD; | |
1446 | if (!XFS_IS_GQUOTA_ON(mp)) | |
1447 | mp->m_qflags &= ~XFS_GQUOTA_CHKD; | |
1448 | if (!XFS_IS_PQUOTA_ON(mp)) | |
1449 | mp->m_qflags &= ~XFS_PQUOTA_CHKD; | |
1450 | ||
1451 | write_changes: | |
1452 | /* | |
1453 | * We actually don't have to acquire the m_sb_lock at all. | |
1454 | * This can only be called from mount, and that's single threaded. XXX | |
1455 | */ | |
1456 | spin_lock(&mp->m_sb_lock); | |
1457 | sbf = mp->m_sb.sb_qflags; | |
1458 | mp->m_sb.sb_qflags = mp->m_qflags & XFS_MOUNT_QUOTA_ALL; | |
1459 | spin_unlock(&mp->m_sb_lock); | |
1460 | ||
1461 | if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) { | |
61e63ecb | 1462 | if (xfs_sync_sb(mp, false)) { |
eb866bbf JL |
1463 | /* |
1464 | * We could only have been turning quotas off. | |
1465 | * We aren't in very good shape actually because | |
1466 | * the incore structures are convinced that quotas are | |
1467 | * off, but the on disk superblock doesn't know that ! | |
1468 | */ | |
1469 | ASSERT(!(XFS_IS_QUOTA_RUNNING(mp))); | |
1470 | xfs_alert(mp, "%s: Superblock update failed!", | |
1471 | __func__); | |
1472 | } | |
1473 | } | |
1474 | ||
1475 | if (error) { | |
1476 | xfs_warn(mp, "Failed to initialize disk quotas."); | |
1477 | return; | |
1478 | } | |
1479 | } | |
1480 | ||
1da177e4 LT |
1481 | /* |
1482 | * This is called after the superblock has been read in and we're ready to | |
1483 | * iget the quota inodes. | |
1484 | */ | |
1485 | STATIC int | |
1486 | xfs_qm_init_quotainos( | |
1487 | xfs_mount_t *mp) | |
1488 | { | |
113a5683 CS |
1489 | struct xfs_inode *uip = NULL; |
1490 | struct xfs_inode *gip = NULL; | |
92f8ff73 | 1491 | struct xfs_inode *pip = NULL; |
113a5683 | 1492 | int error; |
113a5683 | 1493 | uint flags = 0; |
1da177e4 LT |
1494 | |
1495 | ASSERT(mp->m_quotainfo); | |
1da177e4 LT |
1496 | |
1497 | /* | |
1498 | * Get the uquota and gquota inodes | |
1499 | */ | |
62118709 | 1500 | if (xfs_sb_version_hasquota(&mp->m_sb)) { |
1da177e4 LT |
1501 | if (XFS_IS_UQUOTA_ON(mp) && |
1502 | mp->m_sb.sb_uquotino != NULLFSINO) { | |
1503 | ASSERT(mp->m_sb.sb_uquotino > 0); | |
113a5683 CS |
1504 | error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, |
1505 | 0, 0, &uip); | |
1506 | if (error) | |
b474c7ae | 1507 | return error; |
1da177e4 | 1508 | } |
92f8ff73 | 1509 | if (XFS_IS_GQUOTA_ON(mp) && |
1da177e4 LT |
1510 | mp->m_sb.sb_gquotino != NULLFSINO) { |
1511 | ASSERT(mp->m_sb.sb_gquotino > 0); | |
113a5683 CS |
1512 | error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, |
1513 | 0, 0, &gip); | |
1514 | if (error) | |
1515 | goto error_rele; | |
1da177e4 | 1516 | } |
92f8ff73 | 1517 | if (XFS_IS_PQUOTA_ON(mp) && |
d892d586 CS |
1518 | mp->m_sb.sb_pquotino != NULLFSINO) { |
1519 | ASSERT(mp->m_sb.sb_pquotino > 0); | |
1520 | error = xfs_iget(mp, NULL, mp->m_sb.sb_pquotino, | |
92f8ff73 CS |
1521 | 0, 0, &pip); |
1522 | if (error) | |
1523 | goto error_rele; | |
1524 | } | |
1da177e4 LT |
1525 | } else { |
1526 | flags |= XFS_QMOPT_SBVERSION; | |
1da177e4 LT |
1527 | } |
1528 | ||
1529 | /* | |
92f8ff73 | 1530 | * Create the three inodes, if they don't exist already. The changes |
1da177e4 LT |
1531 | * made above will get added to a transaction and logged in one of |
1532 | * the qino_alloc calls below. If the device is readonly, | |
1533 | * temporarily switch to read-write to do this. | |
1534 | */ | |
1535 | if (XFS_IS_UQUOTA_ON(mp) && uip == NULL) { | |
113a5683 | 1536 | error = xfs_qm_qino_alloc(mp, &uip, |
113a5683 CS |
1537 | flags | XFS_QMOPT_UQUOTA); |
1538 | if (error) | |
1539 | goto error_rele; | |
1da177e4 LT |
1540 | |
1541 | flags &= ~XFS_QMOPT_SBVERSION; | |
1542 | } | |
92f8ff73 | 1543 | if (XFS_IS_GQUOTA_ON(mp) && gip == NULL) { |
c8ad20ff | 1544 | error = xfs_qm_qino_alloc(mp, &gip, |
92f8ff73 CS |
1545 | flags | XFS_QMOPT_GQUOTA); |
1546 | if (error) | |
1547 | goto error_rele; | |
1548 | ||
1549 | flags &= ~XFS_QMOPT_SBVERSION; | |
1550 | } | |
1551 | if (XFS_IS_PQUOTA_ON(mp) && pip == NULL) { | |
92f8ff73 | 1552 | error = xfs_qm_qino_alloc(mp, &pip, |
92f8ff73 | 1553 | flags | XFS_QMOPT_PQUOTA); |
113a5683 CS |
1554 | if (error) |
1555 | goto error_rele; | |
1da177e4 LT |
1556 | } |
1557 | ||
8a7b8a89 CH |
1558 | mp->m_quotainfo->qi_uquotaip = uip; |
1559 | mp->m_quotainfo->qi_gquotaip = gip; | |
92f8ff73 | 1560 | mp->m_quotainfo->qi_pquotaip = pip; |
1da177e4 | 1561 | |
014c2544 | 1562 | return 0; |
113a5683 CS |
1563 | |
1564 | error_rele: | |
1565 | if (uip) | |
44a8736b | 1566 | xfs_irele(uip); |
113a5683 | 1567 | if (gip) |
44a8736b | 1568 | xfs_irele(gip); |
92f8ff73 | 1569 | if (pip) |
44a8736b | 1570 | xfs_irele(pip); |
b474c7ae | 1571 | return error; |
1da177e4 LT |
1572 | } |
1573 | ||
3a3882ff AK |
1574 | STATIC void |
1575 | xfs_qm_destroy_quotainos( | |
c072fbef | 1576 | struct xfs_quotainfo *qi) |
3a3882ff AK |
1577 | { |
1578 | if (qi->qi_uquotaip) { | |
44a8736b | 1579 | xfs_irele(qi->qi_uquotaip); |
3a3882ff AK |
1580 | qi->qi_uquotaip = NULL; /* paranoia */ |
1581 | } | |
1582 | if (qi->qi_gquotaip) { | |
44a8736b | 1583 | xfs_irele(qi->qi_gquotaip); |
3a3882ff AK |
1584 | qi->qi_gquotaip = NULL; |
1585 | } | |
1586 | if (qi->qi_pquotaip) { | |
44a8736b | 1587 | xfs_irele(qi->qi_pquotaip); |
3a3882ff AK |
1588 | qi->qi_pquotaip = NULL; |
1589 | } | |
1590 | } | |
1591 | ||
92b2e5b3 CH |
1592 | STATIC void |
1593 | xfs_qm_dqfree_one( | |
1594 | struct xfs_dquot *dqp) | |
1595 | { | |
1596 | struct xfs_mount *mp = dqp->q_mount; | |
1597 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
1da177e4 | 1598 | |
9f920f11 | 1599 | mutex_lock(&qi->qi_tree_lock); |
329e0875 | 1600 | radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags), |
9f920f11 | 1601 | be32_to_cpu(dqp->q_core.d_id)); |
368e1361 | 1602 | |
92b2e5b3 | 1603 | qi->qi_dquots--; |
b84a3a96 | 1604 | mutex_unlock(&qi->qi_tree_lock); |
92b2e5b3 CH |
1605 | |
1606 | xfs_qm_dqdestroy(dqp); | |
1607 | } | |
1608 | ||
1da177e4 LT |
1609 | /* --------------- utility functions for vnodeops ---------------- */ |
1610 | ||
1611 | ||
1612 | /* | |
6c77b0ea | 1613 | * Given an inode, a uid, gid and prid make sure that we have |
1da177e4 LT |
1614 | * allocated relevant dquot(s) on disk, and that we won't exceed inode |
1615 | * quotas by creating this file. | |
1616 | * This also attaches dquot(s) to the given inode after locking it, | |
1617 | * and returns the dquots corresponding to the uid and/or gid. | |
1618 | * | |
1619 | * in : inode (unlocked) | |
1620 | * out : udquot, gdquot with references taken and unlocked | |
1621 | */ | |
1622 | int | |
1623 | xfs_qm_vop_dqalloc( | |
7d095257 | 1624 | struct xfs_inode *ip, |
54295159 CH |
1625 | kuid_t uid, |
1626 | kgid_t gid, | |
7d095257 CH |
1627 | prid_t prid, |
1628 | uint flags, | |
1629 | struct xfs_dquot **O_udqpp, | |
92f8ff73 CS |
1630 | struct xfs_dquot **O_gdqpp, |
1631 | struct xfs_dquot **O_pdqpp) | |
1da177e4 | 1632 | { |
7d095257 | 1633 | struct xfs_mount *mp = ip->i_mount; |
54295159 | 1634 | struct inode *inode = VFS_I(ip); |
ba8adad5 | 1635 | struct user_namespace *user_ns = inode->i_sb->s_user_ns; |
113a5683 CS |
1636 | struct xfs_dquot *uq = NULL; |
1637 | struct xfs_dquot *gq = NULL; | |
92f8ff73 | 1638 | struct xfs_dquot *pq = NULL; |
7d095257 CH |
1639 | int error; |
1640 | uint lockflags; | |
1da177e4 | 1641 | |
7d095257 | 1642 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
1da177e4 LT |
1643 | return 0; |
1644 | ||
1645 | lockflags = XFS_ILOCK_EXCL; | |
1646 | xfs_ilock(ip, lockflags); | |
1647 | ||
bd186aa9 | 1648 | if ((flags & XFS_QMOPT_INHERIT) && XFS_INHERIT_GID(ip)) |
54295159 | 1649 | gid = inode->i_gid; |
1da177e4 LT |
1650 | |
1651 | /* | |
1652 | * Attach the dquot(s) to this inode, doing a dquot allocation | |
1653 | * if necessary. The dquot(s) will not be locked. | |
1654 | */ | |
1655 | if (XFS_NOT_DQATTACHED(mp, ip)) { | |
4882c19d | 1656 | error = xfs_qm_dqattach_locked(ip, true); |
7d095257 | 1657 | if (error) { |
1da177e4 | 1658 | xfs_iunlock(ip, lockflags); |
014c2544 | 1659 | return error; |
1da177e4 LT |
1660 | } |
1661 | } | |
1662 | ||
c8ad20ff | 1663 | if ((flags & XFS_QMOPT_UQUOTA) && XFS_IS_UQUOTA_ON(mp)) { |
54295159 | 1664 | if (!uid_eq(inode->i_uid, uid)) { |
1da177e4 LT |
1665 | /* |
1666 | * What we need is the dquot that has this uid, and | |
1667 | * if we send the inode to dqget, the uid of the inode | |
1668 | * takes priority over what's sent in the uid argument. | |
1669 | * We must unlock inode here before calling dqget if | |
1670 | * we're not sending the inode, because otherwise | |
1671 | * we'll deadlock by doing trans_reserve while | |
1672 | * holding ilock. | |
1673 | */ | |
1674 | xfs_iunlock(ip, lockflags); | |
ba8adad5 | 1675 | error = xfs_qm_dqget(mp, from_kuid(user_ns, uid), |
54295159 | 1676 | XFS_DQ_USER, true, &uq); |
113a5683 | 1677 | if (error) { |
2451337d | 1678 | ASSERT(error != -ENOENT); |
014c2544 | 1679 | return error; |
1da177e4 LT |
1680 | } |
1681 | /* | |
1682 | * Get the ilock in the right order. | |
1683 | */ | |
1684 | xfs_dqunlock(uq); | |
1685 | lockflags = XFS_ILOCK_SHARED; | |
1686 | xfs_ilock(ip, lockflags); | |
1687 | } else { | |
1688 | /* | |
1689 | * Take an extra reference, because we'll return | |
1690 | * this to caller | |
1691 | */ | |
1692 | ASSERT(ip->i_udquot); | |
78e55892 | 1693 | uq = xfs_qm_dqhold(ip->i_udquot); |
1da177e4 LT |
1694 | } |
1695 | } | |
c8ad20ff | 1696 | if ((flags & XFS_QMOPT_GQUOTA) && XFS_IS_GQUOTA_ON(mp)) { |
54295159 | 1697 | if (!gid_eq(inode->i_gid, gid)) { |
1da177e4 | 1698 | xfs_iunlock(ip, lockflags); |
ba8adad5 | 1699 | error = xfs_qm_dqget(mp, from_kgid(user_ns, gid), |
54295159 | 1700 | XFS_DQ_GROUP, true, &gq); |
113a5683 | 1701 | if (error) { |
2451337d | 1702 | ASSERT(error != -ENOENT); |
113a5683 | 1703 | goto error_rele; |
1da177e4 LT |
1704 | } |
1705 | xfs_dqunlock(gq); | |
1706 | lockflags = XFS_ILOCK_SHARED; | |
1707 | xfs_ilock(ip, lockflags); | |
1708 | } else { | |
1709 | ASSERT(ip->i_gdquot); | |
78e55892 | 1710 | gq = xfs_qm_dqhold(ip->i_gdquot); |
1da177e4 | 1711 | } |
92f8ff73 CS |
1712 | } |
1713 | if ((flags & XFS_QMOPT_PQUOTA) && XFS_IS_PQUOTA_ON(mp)) { | |
de7a866f | 1714 | if (ip->i_d.di_projid != prid) { |
c8ad20ff | 1715 | xfs_iunlock(ip, lockflags); |
4882c19d | 1716 | error = xfs_qm_dqget(mp, (xfs_dqid_t)prid, XFS_DQ_PROJ, |
30ab2dcf | 1717 | true, &pq); |
113a5683 | 1718 | if (error) { |
2451337d | 1719 | ASSERT(error != -ENOENT); |
113a5683 | 1720 | goto error_rele; |
c8ad20ff | 1721 | } |
92f8ff73 | 1722 | xfs_dqunlock(pq); |
c8ad20ff NS |
1723 | lockflags = XFS_ILOCK_SHARED; |
1724 | xfs_ilock(ip, lockflags); | |
1725 | } else { | |
92f8ff73 CS |
1726 | ASSERT(ip->i_pdquot); |
1727 | pq = xfs_qm_dqhold(ip->i_pdquot); | |
c8ad20ff | 1728 | } |
1da177e4 | 1729 | } |
c140735b | 1730 | trace_xfs_dquot_dqalloc(ip); |
1da177e4 LT |
1731 | |
1732 | xfs_iunlock(ip, lockflags); | |
1733 | if (O_udqpp) | |
1734 | *O_udqpp = uq; | |
d2a5e3c6 | 1735 | else |
1da177e4 LT |
1736 | xfs_qm_dqrele(uq); |
1737 | if (O_gdqpp) | |
1738 | *O_gdqpp = gq; | |
d2a5e3c6 | 1739 | else |
1da177e4 | 1740 | xfs_qm_dqrele(gq); |
92f8ff73 CS |
1741 | if (O_pdqpp) |
1742 | *O_pdqpp = pq; | |
d2a5e3c6 | 1743 | else |
92f8ff73 | 1744 | xfs_qm_dqrele(pq); |
014c2544 | 1745 | return 0; |
113a5683 CS |
1746 | |
1747 | error_rele: | |
d2a5e3c6 ME |
1748 | xfs_qm_dqrele(gq); |
1749 | xfs_qm_dqrele(uq); | |
113a5683 | 1750 | return error; |
1da177e4 LT |
1751 | } |
1752 | ||
1753 | /* | |
1754 | * Actually transfer ownership, and do dquot modifications. | |
1755 | * These were already reserved. | |
1756 | */ | |
aefe69a4 | 1757 | struct xfs_dquot * |
1da177e4 | 1758 | xfs_qm_vop_chown( |
aefe69a4 PR |
1759 | struct xfs_trans *tp, |
1760 | struct xfs_inode *ip, | |
1761 | struct xfs_dquot **IO_olddq, | |
1762 | struct xfs_dquot *newdq) | |
1da177e4 | 1763 | { |
aefe69a4 | 1764 | struct xfs_dquot *prevdq; |
06d10dd9 NS |
1765 | uint bfield = XFS_IS_REALTIME_INODE(ip) ? |
1766 | XFS_TRANS_DQ_RTBCOUNT : XFS_TRANS_DQ_BCOUNT; | |
1767 | ||
7d095257 | 1768 | |
579aa9ca | 1769 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
1770 | ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount)); |
1771 | ||
1772 | /* old dquot */ | |
1773 | prevdq = *IO_olddq; | |
1774 | ASSERT(prevdq); | |
1775 | ASSERT(prevdq != newdq); | |
1776 | ||
06d10dd9 NS |
1777 | xfs_trans_mod_dquot(tp, prevdq, bfield, -(ip->i_d.di_nblocks)); |
1778 | xfs_trans_mod_dquot(tp, prevdq, XFS_TRANS_DQ_ICOUNT, -1); | |
1da177e4 LT |
1779 | |
1780 | /* the sparkling new dquot */ | |
06d10dd9 NS |
1781 | xfs_trans_mod_dquot(tp, newdq, bfield, ip->i_d.di_nblocks); |
1782 | xfs_trans_mod_dquot(tp, newdq, XFS_TRANS_DQ_ICOUNT, 1); | |
1da177e4 LT |
1783 | |
1784 | /* | |
78e55892 CH |
1785 | * Take an extra reference, because the inode is going to keep |
1786 | * this dquot pointer even after the trans_commit. | |
1da177e4 | 1787 | */ |
78e55892 | 1788 | *IO_olddq = xfs_qm_dqhold(newdq); |
1da177e4 | 1789 | |
014c2544 | 1790 | return prevdq; |
1da177e4 LT |
1791 | } |
1792 | ||
1793 | /* | |
c8ad20ff | 1794 | * Quota reservations for setattr(AT_UID|AT_GID|AT_PROJID). |
1da177e4 LT |
1795 | */ |
1796 | int | |
1797 | xfs_qm_vop_chown_reserve( | |
113a5683 CS |
1798 | struct xfs_trans *tp, |
1799 | struct xfs_inode *ip, | |
1800 | struct xfs_dquot *udqp, | |
1801 | struct xfs_dquot *gdqp, | |
92f8ff73 | 1802 | struct xfs_dquot *pdqp, |
113a5683 | 1803 | uint flags) |
1da177e4 | 1804 | { |
113a5683 | 1805 | struct xfs_mount *mp = ip->i_mount; |
394aafdc | 1806 | uint64_t delblks; |
dcf1ccc9 | 1807 | unsigned int blkflags; |
113a5683 CS |
1808 | struct xfs_dquot *udq_unres = NULL; |
1809 | struct xfs_dquot *gdq_unres = NULL; | |
92f8ff73 | 1810 | struct xfs_dquot *pdq_unres = NULL; |
113a5683 CS |
1811 | struct xfs_dquot *udq_delblks = NULL; |
1812 | struct xfs_dquot *gdq_delblks = NULL; | |
92f8ff73 | 1813 | struct xfs_dquot *pdq_delblks = NULL; |
113a5683 | 1814 | int error; |
7d095257 | 1815 | |
1da177e4 | 1816 | |
579aa9ca | 1817 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED)); |
1da177e4 LT |
1818 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1819 | ||
1820 | delblks = ip->i_delayed_blks; | |
06d10dd9 NS |
1821 | blkflags = XFS_IS_REALTIME_INODE(ip) ? |
1822 | XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS; | |
1da177e4 LT |
1823 | |
1824 | if (XFS_IS_UQUOTA_ON(mp) && udqp && | |
ba8adad5 | 1825 | i_uid_read(VFS_I(ip)) != be32_to_cpu(udqp->q_core.d_id)) { |
113a5683 | 1826 | udq_delblks = udqp; |
1da177e4 LT |
1827 | /* |
1828 | * If there are delayed allocation blocks, then we have to | |
1829 | * unreserve those from the old dquot, and add them to the | |
1830 | * new dquot. | |
1831 | */ | |
1832 | if (delblks) { | |
1833 | ASSERT(ip->i_udquot); | |
113a5683 | 1834 | udq_unres = ip->i_udquot; |
1da177e4 LT |
1835 | } |
1836 | } | |
92f8ff73 | 1837 | if (XFS_IS_GQUOTA_ON(ip->i_mount) && gdqp && |
ba8adad5 | 1838 | i_gid_read(VFS_I(ip)) != be32_to_cpu(gdqp->q_core.d_id)) { |
92f8ff73 CS |
1839 | gdq_delblks = gdqp; |
1840 | if (delblks) { | |
1841 | ASSERT(ip->i_gdquot); | |
1842 | gdq_unres = ip->i_gdquot; | |
1843 | } | |
1844 | } | |
1845 | ||
1846 | if (XFS_IS_PQUOTA_ON(ip->i_mount) && pdqp && | |
de7a866f | 1847 | ip->i_d.di_projid != be32_to_cpu(pdqp->q_core.d_id)) { |
92f8ff73 CS |
1848 | pdq_delblks = pdqp; |
1849 | if (delblks) { | |
1850 | ASSERT(ip->i_pdquot); | |
1851 | pdq_unres = ip->i_pdquot; | |
1da177e4 LT |
1852 | } |
1853 | } | |
1854 | ||
113a5683 | 1855 | error = xfs_trans_reserve_quota_bydquots(tp, ip->i_mount, |
92f8ff73 | 1856 | udq_delblks, gdq_delblks, pdq_delblks, |
dcf1ccc9 | 1857 | ip->i_d.di_nblocks, 1, flags | blkflags); |
113a5683 CS |
1858 | if (error) |
1859 | return error; | |
1da177e4 LT |
1860 | |
1861 | /* | |
1862 | * Do the delayed blks reservations/unreservations now. Since, these | |
1863 | * are done without the help of a transaction, if a reservation fails | |
1864 | * its previous reservations won't be automatically undone by trans | |
1865 | * code. So, we have to do it manually here. | |
1866 | */ | |
1867 | if (delblks) { | |
1868 | /* | |
1869 | * Do the reservations first. Unreservation can't fail. | |
1870 | */ | |
92f8ff73 CS |
1871 | ASSERT(udq_delblks || gdq_delblks || pdq_delblks); |
1872 | ASSERT(udq_unres || gdq_unres || pdq_unres); | |
113a5683 | 1873 | error = xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, |
92f8ff73 | 1874 | udq_delblks, gdq_delblks, pdq_delblks, |
dcf1ccc9 | 1875 | (xfs_qcnt_t)delblks, 0, flags | blkflags); |
113a5683 CS |
1876 | if (error) |
1877 | return error; | |
1da177e4 | 1878 | xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, |
92f8ff73 CS |
1879 | udq_unres, gdq_unres, pdq_unres, |
1880 | -((xfs_qcnt_t)delblks), 0, blkflags); | |
1da177e4 LT |
1881 | } |
1882 | ||
d99831ff | 1883 | return 0; |
1da177e4 LT |
1884 | } |
1885 | ||
1886 | int | |
1887 | xfs_qm_vop_rename_dqattach( | |
7d095257 | 1888 | struct xfs_inode **i_tab) |
1da177e4 | 1889 | { |
7d095257 CH |
1890 | struct xfs_mount *mp = i_tab[0]->i_mount; |
1891 | int i; | |
1da177e4 | 1892 | |
7d095257 | 1893 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
014c2544 | 1894 | return 0; |
1da177e4 | 1895 | |
7d095257 CH |
1896 | for (i = 0; (i < 4 && i_tab[i]); i++) { |
1897 | struct xfs_inode *ip = i_tab[i]; | |
1898 | int error; | |
1899 | ||
1da177e4 LT |
1900 | /* |
1901 | * Watch out for duplicate entries in the table. | |
1902 | */ | |
7d095257 CH |
1903 | if (i == 0 || ip != i_tab[i-1]) { |
1904 | if (XFS_NOT_DQATTACHED(mp, ip)) { | |
c14cfcca | 1905 | error = xfs_qm_dqattach(ip); |
1da177e4 | 1906 | if (error) |
014c2544 | 1907 | return error; |
1da177e4 LT |
1908 | } |
1909 | } | |
1910 | } | |
014c2544 | 1911 | return 0; |
1da177e4 LT |
1912 | } |
1913 | ||
1914 | void | |
7d095257 CH |
1915 | xfs_qm_vop_create_dqattach( |
1916 | struct xfs_trans *tp, | |
1917 | struct xfs_inode *ip, | |
1918 | struct xfs_dquot *udqp, | |
92f8ff73 CS |
1919 | struct xfs_dquot *gdqp, |
1920 | struct xfs_dquot *pdqp) | |
1da177e4 | 1921 | { |
7d095257 CH |
1922 | struct xfs_mount *mp = tp->t_mountp; |
1923 | ||
1924 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) | |
1da177e4 LT |
1925 | return; |
1926 | ||
579aa9ca | 1927 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 1928 | |
37eb9706 | 1929 | if (udqp && XFS_IS_UQUOTA_ON(mp)) { |
1da177e4 | 1930 | ASSERT(ip->i_udquot == NULL); |
ba8adad5 | 1931 | ASSERT(i_uid_read(VFS_I(ip)) == be32_to_cpu(udqp->q_core.d_id)); |
78e55892 CH |
1932 | |
1933 | ip->i_udquot = xfs_qm_dqhold(udqp); | |
1da177e4 LT |
1934 | xfs_trans_mod_dquot(tp, udqp, XFS_TRANS_DQ_ICOUNT, 1); |
1935 | } | |
37eb9706 | 1936 | if (gdqp && XFS_IS_GQUOTA_ON(mp)) { |
1da177e4 | 1937 | ASSERT(ip->i_gdquot == NULL); |
ba8adad5 | 1938 | ASSERT(i_gid_read(VFS_I(ip)) == be32_to_cpu(gdqp->q_core.d_id)); |
54295159 | 1939 | |
78e55892 | 1940 | ip->i_gdquot = xfs_qm_dqhold(gdqp); |
1da177e4 LT |
1941 | xfs_trans_mod_dquot(tp, gdqp, XFS_TRANS_DQ_ICOUNT, 1); |
1942 | } | |
37eb9706 | 1943 | if (pdqp && XFS_IS_PQUOTA_ON(mp)) { |
92f8ff73 | 1944 | ASSERT(ip->i_pdquot == NULL); |
de7a866f | 1945 | ASSERT(ip->i_d.di_projid == be32_to_cpu(pdqp->q_core.d_id)); |
92f8ff73 CS |
1946 | |
1947 | ip->i_pdquot = xfs_qm_dqhold(pdqp); | |
1948 | xfs_trans_mod_dquot(tp, pdqp, XFS_TRANS_DQ_ICOUNT, 1); | |
1949 | } | |
1da177e4 LT |
1950 | } |
1951 |