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 LT |
25 | #include "xfs_sb.h" |
26 | #include "xfs_ag.h" | |
1da177e4 | 27 | #include "xfs_mount.h" |
1da177e4 | 28 | #include "xfs_inode.h" |
a844f451 NS |
29 | #include "xfs_ialloc.h" |
30 | #include "xfs_itable.h" | |
239880ef | 31 | #include "xfs_quota.h" |
1da177e4 | 32 | #include "xfs_error.h" |
a844f451 | 33 | #include "xfs_bmap.h" |
a4fbe6ab | 34 | #include "xfs_bmap_btree.h" |
239880ef | 35 | #include "xfs_trans.h" |
1da177e4 | 36 | #include "xfs_trans_space.h" |
1da177e4 | 37 | #include "xfs_qm.h" |
0b1b213f | 38 | #include "xfs_trace.h" |
33479e05 | 39 | #include "xfs_icache.h" |
6fcdc59d | 40 | #include "xfs_cksum.h" |
a4fbe6ab | 41 | #include "xfs_dinode.h" |
1da177e4 LT |
42 | |
43 | /* | |
44 | * The global quota manager. There is only one of these for the entire | |
45 | * system, _not_ one per file system. XQM keeps track of the overall | |
46 | * quota functionality, including maintaining the freelist and hash | |
47 | * tables of dquots. | |
48 | */ | |
1da177e4 | 49 | STATIC int xfs_qm_init_quotainos(xfs_mount_t *); |
ba0f32d4 | 50 | STATIC int xfs_qm_init_quotainfo(xfs_mount_t *); |
1da177e4 | 51 | |
cd56a39a DC |
52 | |
53 | STATIC void xfs_qm_dqfree_one(struct xfs_dquot *dqp); | |
b84a3a96 CH |
54 | /* |
55 | * We use the batch lookup interface to iterate over the dquots as it | |
56 | * currently is the only interface into the radix tree code that allows | |
57 | * fuzzy lookups instead of exact matches. Holding the lock over multiple | |
58 | * operations is fine as all callers are used either during mount/umount | |
59 | * or quotaoff. | |
60 | */ | |
61 | #define XFS_DQ_LOOKUP_BATCH 32 | |
62 | ||
63 | STATIC int | |
64 | xfs_qm_dquot_walk( | |
65 | struct xfs_mount *mp, | |
66 | int type, | |
43ff2122 CH |
67 | int (*execute)(struct xfs_dquot *dqp, void *data), |
68 | void *data) | |
b84a3a96 CH |
69 | { |
70 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
329e0875 | 71 | struct radix_tree_root *tree = xfs_dquot_tree(qi, type); |
b84a3a96 CH |
72 | uint32_t next_index; |
73 | int last_error = 0; | |
74 | int skipped; | |
75 | int nr_found; | |
76 | ||
77 | restart: | |
78 | skipped = 0; | |
79 | next_index = 0; | |
80 | nr_found = 0; | |
81 | ||
82 | while (1) { | |
83 | struct xfs_dquot *batch[XFS_DQ_LOOKUP_BATCH]; | |
84 | int error = 0; | |
85 | int i; | |
86 | ||
87 | mutex_lock(&qi->qi_tree_lock); | |
88 | nr_found = radix_tree_gang_lookup(tree, (void **)batch, | |
89 | next_index, XFS_DQ_LOOKUP_BATCH); | |
90 | if (!nr_found) { | |
91 | mutex_unlock(&qi->qi_tree_lock); | |
92 | break; | |
93 | } | |
94 | ||
95 | for (i = 0; i < nr_found; i++) { | |
96 | struct xfs_dquot *dqp = batch[i]; | |
97 | ||
98 | next_index = be32_to_cpu(dqp->q_core.d_id) + 1; | |
99 | ||
43ff2122 | 100 | error = execute(batch[i], data); |
2451337d | 101 | if (error == -EAGAIN) { |
b84a3a96 CH |
102 | skipped++; |
103 | continue; | |
104 | } | |
2451337d | 105 | if (error && last_error != -EFSCORRUPTED) |
b84a3a96 CH |
106 | last_error = error; |
107 | } | |
108 | ||
109 | mutex_unlock(&qi->qi_tree_lock); | |
110 | ||
111 | /* bail out if the filesystem is corrupted. */ | |
2451337d | 112 | if (last_error == -EFSCORRUPTED) { |
b84a3a96 CH |
113 | skipped = 0; |
114 | break; | |
115 | } | |
116 | } | |
117 | ||
118 | if (skipped) { | |
119 | delay(1); | |
120 | goto restart; | |
121 | } | |
122 | ||
123 | return last_error; | |
124 | } | |
125 | ||
126 | ||
127 | /* | |
128 | * Purge a dquot from all tracking data structures and free it. | |
129 | */ | |
130 | STATIC int | |
131 | xfs_qm_dqpurge( | |
43ff2122 CH |
132 | struct xfs_dquot *dqp, |
133 | void *data) | |
b84a3a96 CH |
134 | { |
135 | struct xfs_mount *mp = dqp->q_mount; | |
136 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
b84a3a96 CH |
137 | |
138 | xfs_dqlock(dqp); | |
139 | if ((dqp->dq_flags & XFS_DQ_FREEING) || dqp->q_nrefs != 0) { | |
140 | xfs_dqunlock(dqp); | |
2451337d | 141 | return -EAGAIN; |
b84a3a96 CH |
142 | } |
143 | ||
b84a3a96 CH |
144 | dqp->dq_flags |= XFS_DQ_FREEING; |
145 | ||
43ff2122 | 146 | xfs_dqflock(dqp); |
b84a3a96 CH |
147 | |
148 | /* | |
149 | * If we are turning this type of quotas off, we don't care | |
150 | * about the dirty metadata sitting in this dquot. OTOH, if | |
151 | * we're unmounting, we do care, so we flush it and wait. | |
152 | */ | |
153 | if (XFS_DQ_IS_DIRTY(dqp)) { | |
fe7257fd CH |
154 | struct xfs_buf *bp = NULL; |
155 | int error; | |
b84a3a96 CH |
156 | |
157 | /* | |
158 | * We don't care about getting disk errors here. We need | |
159 | * to purge this dquot anyway, so we go ahead regardless. | |
160 | */ | |
fe7257fd CH |
161 | error = xfs_qm_dqflush(dqp, &bp); |
162 | if (error) { | |
b84a3a96 CH |
163 | xfs_warn(mp, "%s: dquot %p flush failed", |
164 | __func__, dqp); | |
fe7257fd CH |
165 | } else { |
166 | error = xfs_bwrite(bp); | |
167 | xfs_buf_relse(bp); | |
168 | } | |
b84a3a96 CH |
169 | xfs_dqflock(dqp); |
170 | } | |
171 | ||
172 | ASSERT(atomic_read(&dqp->q_pincount) == 0); | |
173 | ASSERT(XFS_FORCED_SHUTDOWN(mp) || | |
174 | !(dqp->q_logitem.qli_item.li_flags & XFS_LI_IN_AIL)); | |
175 | ||
176 | xfs_dqfunlock(dqp); | |
177 | xfs_dqunlock(dqp); | |
178 | ||
329e0875 | 179 | radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags), |
b84a3a96 CH |
180 | be32_to_cpu(dqp->q_core.d_id)); |
181 | qi->qi_dquots--; | |
182 | ||
183 | /* | |
184 | * We move dquots to the freelist as soon as their reference count | |
185 | * hits zero, so it really should be on the freelist here. | |
186 | */ | |
b84a3a96 | 187 | ASSERT(!list_empty(&dqp->q_lru)); |
cd56a39a | 188 | list_lru_del(&qi->qi_lru, &dqp->q_lru); |
b84a3a96 | 189 | XFS_STATS_DEC(xs_qm_dquot_unused); |
b84a3a96 CH |
190 | |
191 | xfs_qm_dqdestroy(dqp); | |
df8052e7 JL |
192 | return 0; |
193 | } | |
194 | ||
b84a3a96 CH |
195 | /* |
196 | * Purge the dquot cache. | |
197 | */ | |
198 | void | |
199 | xfs_qm_dqpurge_all( | |
200 | struct xfs_mount *mp, | |
201 | uint flags) | |
202 | { | |
3c353375 DC |
203 | if (flags & XFS_QMOPT_UQUOTA) |
204 | xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_dqpurge, NULL); | |
b84a3a96 | 205 | if (flags & XFS_QMOPT_GQUOTA) |
43ff2122 | 206 | xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_dqpurge, NULL); |
b84a3a96 | 207 | if (flags & XFS_QMOPT_PQUOTA) |
43ff2122 | 208 | xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_dqpurge, NULL); |
b84a3a96 CH |
209 | } |
210 | ||
1da177e4 LT |
211 | /* |
212 | * Just destroy the quotainfo structure. | |
213 | */ | |
214 | void | |
7d095257 CH |
215 | xfs_qm_unmount( |
216 | struct xfs_mount *mp) | |
1da177e4 | 217 | { |
7d095257 | 218 | if (mp->m_quotainfo) { |
8112e9dc | 219 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
1da177e4 | 220 | xfs_qm_destroy_quotainfo(mp); |
7d095257 | 221 | } |
1da177e4 LT |
222 | } |
223 | ||
1da177e4 LT |
224 | /* |
225 | * Called from the vfsops layer. | |
226 | */ | |
e57481dc | 227 | void |
1da177e4 LT |
228 | xfs_qm_unmount_quotas( |
229 | xfs_mount_t *mp) | |
230 | { | |
1da177e4 LT |
231 | /* |
232 | * Release the dquots that root inode, et al might be holding, | |
233 | * before we flush quotas and blow away the quotainfo structure. | |
234 | */ | |
235 | ASSERT(mp->m_rootip); | |
236 | xfs_qm_dqdetach(mp->m_rootip); | |
237 | if (mp->m_rbmip) | |
238 | xfs_qm_dqdetach(mp->m_rbmip); | |
239 | if (mp->m_rsumip) | |
240 | xfs_qm_dqdetach(mp->m_rsumip); | |
241 | ||
242 | /* | |
e57481dc | 243 | * Release the quota inodes. |
1da177e4 | 244 | */ |
1da177e4 | 245 | if (mp->m_quotainfo) { |
e57481dc CH |
246 | if (mp->m_quotainfo->qi_uquotaip) { |
247 | IRELE(mp->m_quotainfo->qi_uquotaip); | |
248 | mp->m_quotainfo->qi_uquotaip = NULL; | |
1da177e4 | 249 | } |
e57481dc CH |
250 | if (mp->m_quotainfo->qi_gquotaip) { |
251 | IRELE(mp->m_quotainfo->qi_gquotaip); | |
252 | mp->m_quotainfo->qi_gquotaip = NULL; | |
1da177e4 | 253 | } |
92f8ff73 CS |
254 | if (mp->m_quotainfo->qi_pquotaip) { |
255 | IRELE(mp->m_quotainfo->qi_pquotaip); | |
256 | mp->m_quotainfo->qi_pquotaip = NULL; | |
257 | } | |
1da177e4 | 258 | } |
1da177e4 LT |
259 | } |
260 | ||
1da177e4 LT |
261 | STATIC int |
262 | xfs_qm_dqattach_one( | |
263 | xfs_inode_t *ip, | |
264 | xfs_dqid_t id, | |
265 | uint type, | |
266 | uint doalloc, | |
1da177e4 LT |
267 | xfs_dquot_t **IO_idqpp) |
268 | { | |
269 | xfs_dquot_t *dqp; | |
270 | int error; | |
271 | ||
579aa9ca | 272 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 273 | error = 0; |
8e9b6e7f | 274 | |
1da177e4 | 275 | /* |
3c353375 DC |
276 | * See if we already have it in the inode itself. IO_idqpp is &i_udquot |
277 | * or &i_gdquot. This made the code look weird, but made the logic a lot | |
278 | * simpler. | |
1da177e4 | 279 | */ |
8e9b6e7f CH |
280 | dqp = *IO_idqpp; |
281 | if (dqp) { | |
0b1b213f | 282 | trace_xfs_dqattach_found(dqp); |
8e9b6e7f | 283 | return 0; |
1da177e4 LT |
284 | } |
285 | ||
286 | /* | |
3c353375 DC |
287 | * Find the dquot from somewhere. This bumps the reference count of |
288 | * dquot and returns it locked. This can return ENOENT if dquot didn't | |
289 | * exist on disk and we didn't ask it to allocate; ESRCH if quotas got | |
290 | * turned off suddenly. | |
1da177e4 | 291 | */ |
db3e74b5 MH |
292 | error = xfs_qm_dqget(ip->i_mount, ip, id, type, |
293 | doalloc | XFS_QMOPT_DOWARN, &dqp); | |
8e9b6e7f CH |
294 | if (error) |
295 | return error; | |
1da177e4 | 296 | |
0b1b213f | 297 | trace_xfs_dqattach_get(dqp); |
8e9b6e7f | 298 | |
1da177e4 LT |
299 | /* |
300 | * dqget may have dropped and re-acquired the ilock, but it guarantees | |
301 | * that the dquot returned is the one that should go in the inode. | |
302 | */ | |
303 | *IO_idqpp = dqp; | |
8e9b6e7f CH |
304 | xfs_dqunlock(dqp); |
305 | return 0; | |
1da177e4 LT |
306 | } |
307 | ||
b4d05e30 CH |
308 | static bool |
309 | xfs_qm_need_dqattach( | |
310 | struct xfs_inode *ip) | |
311 | { | |
312 | struct xfs_mount *mp = ip->i_mount; | |
313 | ||
314 | if (!XFS_IS_QUOTA_RUNNING(mp)) | |
315 | return false; | |
316 | if (!XFS_IS_QUOTA_ON(mp)) | |
317 | return false; | |
318 | if (!XFS_NOT_DQATTACHED(mp, ip)) | |
319 | return false; | |
9cad19d2 | 320 | if (xfs_is_quota_inode(&mp->m_sb, ip->i_ino)) |
b4d05e30 CH |
321 | return false; |
322 | return true; | |
323 | } | |
1da177e4 LT |
324 | |
325 | /* | |
c8ad20ff NS |
326 | * Given a locked inode, attach dquot(s) to it, taking U/G/P-QUOTAON |
327 | * into account. | |
1da177e4 | 328 | * If XFS_QMOPT_DQALLOC, the dquot(s) will be allocated if needed. |
1da177e4 LT |
329 | * Inode may get unlocked and relocked in here, and the caller must deal with |
330 | * the consequences. | |
331 | */ | |
332 | int | |
7d095257 | 333 | xfs_qm_dqattach_locked( |
1da177e4 LT |
334 | xfs_inode_t *ip, |
335 | uint flags) | |
336 | { | |
337 | xfs_mount_t *mp = ip->i_mount; | |
1da177e4 LT |
338 | int error = 0; |
339 | ||
b4d05e30 | 340 | if (!xfs_qm_need_dqattach(ip)) |
014c2544 | 341 | return 0; |
1da177e4 | 342 | |
7d095257 | 343 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 344 | |
3c353375 | 345 | if (XFS_IS_UQUOTA_ON(mp) && !ip->i_udquot) { |
1da177e4 LT |
346 | error = xfs_qm_dqattach_one(ip, ip->i_d.di_uid, XFS_DQ_USER, |
347 | flags & XFS_QMOPT_DQALLOC, | |
3c353375 | 348 | &ip->i_udquot); |
1da177e4 LT |
349 | if (error) |
350 | goto done; | |
3c353375 | 351 | ASSERT(ip->i_udquot); |
1da177e4 | 352 | } |
579aa9ca | 353 | |
3c353375 | 354 | if (XFS_IS_GQUOTA_ON(mp) && !ip->i_gdquot) { |
92f8ff73 | 355 | error = xfs_qm_dqattach_one(ip, ip->i_d.di_gid, XFS_DQ_GROUP, |
1da177e4 | 356 | flags & XFS_QMOPT_DQALLOC, |
3c353375 | 357 | &ip->i_gdquot); |
1da177e4 LT |
358 | if (error) |
359 | goto done; | |
3c353375 | 360 | ASSERT(ip->i_gdquot); |
1da177e4 LT |
361 | } |
362 | ||
3c353375 | 363 | if (XFS_IS_PQUOTA_ON(mp) && !ip->i_pdquot) { |
92f8ff73 CS |
364 | error = xfs_qm_dqattach_one(ip, xfs_get_projid(ip), XFS_DQ_PROJ, |
365 | flags & XFS_QMOPT_DQALLOC, | |
3c353375 | 366 | &ip->i_pdquot); |
92f8ff73 CS |
367 | if (error) |
368 | goto done; | |
3c353375 | 369 | ASSERT(ip->i_pdquot); |
92f8ff73 CS |
370 | } |
371 | ||
3c353375 | 372 | done: |
1da177e4 | 373 | /* |
3c353375 DC |
374 | * Don't worry about the dquots that we may have attached before any |
375 | * error - they'll get detached later if it has not already been done. | |
1da177e4 | 376 | */ |
7d095257 | 377 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
7d095257 CH |
378 | return error; |
379 | } | |
1da177e4 | 380 | |
7d095257 CH |
381 | int |
382 | xfs_qm_dqattach( | |
383 | struct xfs_inode *ip, | |
384 | uint flags) | |
385 | { | |
386 | int error; | |
387 | ||
b4d05e30 CH |
388 | if (!xfs_qm_need_dqattach(ip)) |
389 | return 0; | |
390 | ||
7d095257 CH |
391 | xfs_ilock(ip, XFS_ILOCK_EXCL); |
392 | error = xfs_qm_dqattach_locked(ip, flags); | |
393 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1da177e4 | 394 | |
014c2544 | 395 | return error; |
1da177e4 LT |
396 | } |
397 | ||
398 | /* | |
399 | * Release dquots (and their references) if any. | |
400 | * The inode should be locked EXCL except when this's called by | |
401 | * xfs_ireclaim. | |
402 | */ | |
403 | void | |
404 | xfs_qm_dqdetach( | |
405 | xfs_inode_t *ip) | |
406 | { | |
92f8ff73 | 407 | if (!(ip->i_udquot || ip->i_gdquot || ip->i_pdquot)) |
1da177e4 LT |
408 | return; |
409 | ||
0b1b213f CH |
410 | trace_xfs_dquot_dqdetach(ip); |
411 | ||
9cad19d2 | 412 | ASSERT(!xfs_is_quota_inode(&ip->i_mount->m_sb, ip->i_ino)); |
1da177e4 LT |
413 | if (ip->i_udquot) { |
414 | xfs_qm_dqrele(ip->i_udquot); | |
415 | ip->i_udquot = NULL; | |
416 | } | |
417 | if (ip->i_gdquot) { | |
418 | xfs_qm_dqrele(ip->i_gdquot); | |
419 | ip->i_gdquot = NULL; | |
420 | } | |
92f8ff73 CS |
421 | if (ip->i_pdquot) { |
422 | xfs_qm_dqrele(ip->i_pdquot); | |
423 | ip->i_pdquot = NULL; | |
424 | } | |
1da177e4 LT |
425 | } |
426 | ||
cd56a39a DC |
427 | struct xfs_qm_isolate { |
428 | struct list_head buffers; | |
429 | struct list_head dispose; | |
430 | }; | |
431 | ||
432 | static enum lru_status | |
433 | xfs_qm_dquot_isolate( | |
434 | struct list_head *item, | |
435 | spinlock_t *lru_lock, | |
436 | void *arg) | |
bf1ed383 | 437 | __releases(lru_lock) __acquires(lru_lock) |
cd56a39a DC |
438 | { |
439 | struct xfs_dquot *dqp = container_of(item, | |
440 | struct xfs_dquot, q_lru); | |
441 | struct xfs_qm_isolate *isol = arg; | |
442 | ||
443 | if (!xfs_dqlock_nowait(dqp)) | |
444 | goto out_miss_busy; | |
445 | ||
446 | /* | |
447 | * This dquot has acquired a reference in the meantime remove it from | |
448 | * the freelist and try again. | |
449 | */ | |
450 | if (dqp->q_nrefs) { | |
451 | xfs_dqunlock(dqp); | |
452 | XFS_STATS_INC(xs_qm_dqwants); | |
453 | ||
454 | trace_xfs_dqreclaim_want(dqp); | |
455 | list_del_init(&dqp->q_lru); | |
456 | XFS_STATS_DEC(xs_qm_dquot_unused); | |
35163417 | 457 | return LRU_REMOVED; |
cd56a39a DC |
458 | } |
459 | ||
460 | /* | |
461 | * If the dquot is dirty, flush it. If it's already being flushed, just | |
462 | * skip it so there is time for the IO to complete before we try to | |
463 | * reclaim it again on the next LRU pass. | |
464 | */ | |
465 | if (!xfs_dqflock_nowait(dqp)) { | |
466 | xfs_dqunlock(dqp); | |
467 | goto out_miss_busy; | |
468 | } | |
469 | ||
470 | if (XFS_DQ_IS_DIRTY(dqp)) { | |
471 | struct xfs_buf *bp = NULL; | |
472 | int error; | |
473 | ||
474 | trace_xfs_dqreclaim_dirty(dqp); | |
475 | ||
476 | /* we have to drop the LRU lock to flush the dquot */ | |
477 | spin_unlock(lru_lock); | |
478 | ||
479 | error = xfs_qm_dqflush(dqp, &bp); | |
480 | if (error) { | |
481 | xfs_warn(dqp->q_mount, "%s: dquot %p flush failed", | |
482 | __func__, dqp); | |
483 | goto out_unlock_dirty; | |
484 | } | |
485 | ||
486 | xfs_buf_delwri_queue(bp, &isol->buffers); | |
487 | xfs_buf_relse(bp); | |
488 | goto out_unlock_dirty; | |
489 | } | |
490 | xfs_dqfunlock(dqp); | |
491 | ||
492 | /* | |
493 | * Prevent lookups now that we are past the point of no return. | |
494 | */ | |
495 | dqp->dq_flags |= XFS_DQ_FREEING; | |
496 | xfs_dqunlock(dqp); | |
497 | ||
498 | ASSERT(dqp->q_nrefs == 0); | |
499 | list_move_tail(&dqp->q_lru, &isol->dispose); | |
500 | XFS_STATS_DEC(xs_qm_dquot_unused); | |
501 | trace_xfs_dqreclaim_done(dqp); | |
502 | XFS_STATS_INC(xs_qm_dqreclaims); | |
35163417 | 503 | return LRU_REMOVED; |
cd56a39a DC |
504 | |
505 | out_miss_busy: | |
506 | trace_xfs_dqreclaim_busy(dqp); | |
507 | XFS_STATS_INC(xs_qm_dqreclaim_misses); | |
35163417 | 508 | return LRU_SKIP; |
cd56a39a DC |
509 | |
510 | out_unlock_dirty: | |
511 | trace_xfs_dqreclaim_busy(dqp); | |
512 | XFS_STATS_INC(xs_qm_dqreclaim_misses); | |
35163417 DC |
513 | xfs_dqunlock(dqp); |
514 | spin_lock(lru_lock); | |
515 | return LRU_RETRY; | |
cd56a39a DC |
516 | } |
517 | ||
2f5b56f8 | 518 | static unsigned long |
cd56a39a DC |
519 | xfs_qm_shrink_scan( |
520 | struct shrinker *shrink, | |
521 | struct shrink_control *sc) | |
522 | { | |
523 | struct xfs_quotainfo *qi = container_of(shrink, | |
524 | struct xfs_quotainfo, qi_shrinker); | |
525 | struct xfs_qm_isolate isol; | |
2f5b56f8 | 526 | unsigned long freed; |
cd56a39a DC |
527 | int error; |
528 | unsigned long nr_to_scan = sc->nr_to_scan; | |
529 | ||
530 | if ((sc->gfp_mask & (__GFP_FS|__GFP_WAIT)) != (__GFP_FS|__GFP_WAIT)) | |
531 | return 0; | |
532 | ||
533 | INIT_LIST_HEAD(&isol.buffers); | |
534 | INIT_LIST_HEAD(&isol.dispose); | |
535 | ||
536 | freed = list_lru_walk_node(&qi->qi_lru, sc->nid, xfs_qm_dquot_isolate, &isol, | |
537 | &nr_to_scan); | |
538 | ||
539 | error = xfs_buf_delwri_submit(&isol.buffers); | |
540 | if (error) | |
541 | xfs_warn(NULL, "%s: dquot reclaim failed", __func__); | |
542 | ||
543 | while (!list_empty(&isol.dispose)) { | |
544 | struct xfs_dquot *dqp; | |
545 | ||
546 | dqp = list_first_entry(&isol.dispose, struct xfs_dquot, q_lru); | |
547 | list_del_init(&dqp->q_lru); | |
548 | xfs_qm_dqfree_one(dqp); | |
549 | } | |
550 | ||
551 | return freed; | |
552 | } | |
553 | ||
2f5b56f8 | 554 | static unsigned long |
cd56a39a DC |
555 | xfs_qm_shrink_count( |
556 | struct shrinker *shrink, | |
557 | struct shrink_control *sc) | |
558 | { | |
559 | struct xfs_quotainfo *qi = container_of(shrink, | |
560 | struct xfs_quotainfo, qi_shrinker); | |
561 | ||
562 | return list_lru_count_node(&qi->qi_lru, sc->nid); | |
563 | } | |
564 | ||
1da177e4 LT |
565 | /* |
566 | * This initializes all the quota information that's kept in the | |
567 | * mount structure | |
568 | */ | |
ba0f32d4 | 569 | STATIC int |
1da177e4 LT |
570 | xfs_qm_init_quotainfo( |
571 | xfs_mount_t *mp) | |
572 | { | |
573 | xfs_quotainfo_t *qinf; | |
574 | int error; | |
575 | xfs_dquot_t *dqp; | |
576 | ||
577 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
578 | ||
1da177e4 LT |
579 | qinf = mp->m_quotainfo = kmem_zalloc(sizeof(xfs_quotainfo_t), KM_SLEEP); |
580 | ||
2451337d | 581 | error = list_lru_init(&qinf->qi_lru); |
ee4eec47 DC |
582 | if (error) |
583 | goto out_free_qinf; | |
5ca302c8 | 584 | |
1da177e4 LT |
585 | /* |
586 | * See if quotainodes are setup, and if not, allocate them, | |
587 | * and change the superblock accordingly. | |
588 | */ | |
ee4eec47 DC |
589 | error = xfs_qm_init_quotainos(mp); |
590 | if (error) | |
591 | goto out_free_lru; | |
1da177e4 | 592 | |
9f920f11 CH |
593 | INIT_RADIX_TREE(&qinf->qi_uquota_tree, GFP_NOFS); |
594 | INIT_RADIX_TREE(&qinf->qi_gquota_tree, GFP_NOFS); | |
92f8ff73 | 595 | INIT_RADIX_TREE(&qinf->qi_pquota_tree, GFP_NOFS); |
9f920f11 CH |
596 | mutex_init(&qinf->qi_tree_lock); |
597 | ||
1da177e4 | 598 | /* mutex used to serialize quotaoffs */ |
794ee1ba | 599 | mutex_init(&qinf->qi_quotaofflock); |
1da177e4 LT |
600 | |
601 | /* Precalc some constants */ | |
602 | qinf->qi_dqchunklen = XFS_FSB_TO_BB(mp, XFS_DQUOT_CLUSTER_SIZE_FSB); | |
6ea94bb5 | 603 | qinf->qi_dqperchunk = xfs_calc_dquots_per_chunk(qinf->qi_dqchunklen); |
1da177e4 LT |
604 | |
605 | mp->m_qflags |= (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_CHKD); | |
606 | ||
607 | /* | |
608 | * We try to get the limits from the superuser's limits fields. | |
609 | * This is quite hacky, but it is standard quota practice. | |
7ae44407 | 610 | * |
1da177e4 LT |
611 | * We look at the USR dquot with id == 0 first, but if user quotas |
612 | * are not enabled we goto the GRP dquot with id == 0. | |
613 | * We don't really care to keep separate default limits for user | |
614 | * and group quotas, at least not at this point. | |
7ae44407 CH |
615 | * |
616 | * Since we may not have done a quotacheck by this point, just read | |
617 | * the dquot without attaching it to any hashtables or lists. | |
1da177e4 | 618 | */ |
7ae44407 CH |
619 | error = xfs_qm_dqread(mp, 0, |
620 | XFS_IS_UQUOTA_RUNNING(mp) ? XFS_DQ_USER : | |
621 | (XFS_IS_GQUOTA_RUNNING(mp) ? XFS_DQ_GROUP : | |
622 | XFS_DQ_PROJ), | |
623 | XFS_QMOPT_DOWARN, &dqp); | |
624 | if (!error) { | |
1da177e4 LT |
625 | xfs_disk_dquot_t *ddqp = &dqp->q_core; |
626 | ||
627 | /* | |
628 | * The warnings and timers set the grace period given to | |
629 | * a user or group before he or she can not perform any | |
630 | * more writing. If it is zero, a default is used. | |
631 | */ | |
1149d96a CH |
632 | qinf->qi_btimelimit = ddqp->d_btimer ? |
633 | be32_to_cpu(ddqp->d_btimer) : XFS_QM_BTIMELIMIT; | |
634 | qinf->qi_itimelimit = ddqp->d_itimer ? | |
635 | be32_to_cpu(ddqp->d_itimer) : XFS_QM_ITIMELIMIT; | |
636 | qinf->qi_rtbtimelimit = ddqp->d_rtbtimer ? | |
637 | be32_to_cpu(ddqp->d_rtbtimer) : XFS_QM_RTBTIMELIMIT; | |
638 | qinf->qi_bwarnlimit = ddqp->d_bwarns ? | |
639 | be16_to_cpu(ddqp->d_bwarns) : XFS_QM_BWARNLIMIT; | |
640 | qinf->qi_iwarnlimit = ddqp->d_iwarns ? | |
641 | be16_to_cpu(ddqp->d_iwarns) : XFS_QM_IWARNLIMIT; | |
642 | qinf->qi_rtbwarnlimit = ddqp->d_rtbwarns ? | |
643 | be16_to_cpu(ddqp->d_rtbwarns) : XFS_QM_RTBWARNLIMIT; | |
644 | qinf->qi_bhardlimit = be64_to_cpu(ddqp->d_blk_hardlimit); | |
645 | qinf->qi_bsoftlimit = be64_to_cpu(ddqp->d_blk_softlimit); | |
646 | qinf->qi_ihardlimit = be64_to_cpu(ddqp->d_ino_hardlimit); | |
647 | qinf->qi_isoftlimit = be64_to_cpu(ddqp->d_ino_softlimit); | |
648 | qinf->qi_rtbhardlimit = be64_to_cpu(ddqp->d_rtb_hardlimit); | |
649 | qinf->qi_rtbsoftlimit = be64_to_cpu(ddqp->d_rtb_softlimit); | |
ee4eec47 | 650 | |
1da177e4 LT |
651 | xfs_qm_dqdestroy(dqp); |
652 | } else { | |
653 | qinf->qi_btimelimit = XFS_QM_BTIMELIMIT; | |
654 | qinf->qi_itimelimit = XFS_QM_ITIMELIMIT; | |
655 | qinf->qi_rtbtimelimit = XFS_QM_RTBTIMELIMIT; | |
656 | qinf->qi_bwarnlimit = XFS_QM_BWARNLIMIT; | |
657 | qinf->qi_iwarnlimit = XFS_QM_IWARNLIMIT; | |
06d10dd9 | 658 | qinf->qi_rtbwarnlimit = XFS_QM_RTBWARNLIMIT; |
1da177e4 LT |
659 | } |
660 | ||
cd56a39a DC |
661 | qinf->qi_shrinker.count_objects = xfs_qm_shrink_count; |
662 | qinf->qi_shrinker.scan_objects = xfs_qm_shrink_scan; | |
f8739c3c | 663 | qinf->qi_shrinker.seeks = DEFAULT_SEEKS; |
cd56a39a | 664 | qinf->qi_shrinker.flags = SHRINKER_NUMA_AWARE; |
f8739c3c | 665 | register_shrinker(&qinf->qi_shrinker); |
014c2544 | 666 | return 0; |
ee4eec47 DC |
667 | |
668 | out_free_lru: | |
669 | list_lru_destroy(&qinf->qi_lru); | |
670 | out_free_qinf: | |
671 | kmem_free(qinf); | |
672 | mp->m_quotainfo = NULL; | |
673 | return error; | |
1da177e4 LT |
674 | } |
675 | ||
676 | ||
677 | /* | |
678 | * Gets called when unmounting a filesystem or when all quotas get | |
679 | * turned off. | |
680 | * This purges the quota inodes, destroys locks and frees itself. | |
681 | */ | |
682 | void | |
683 | xfs_qm_destroy_quotainfo( | |
684 | xfs_mount_t *mp) | |
685 | { | |
686 | xfs_quotainfo_t *qi; | |
687 | ||
688 | qi = mp->m_quotainfo; | |
689 | ASSERT(qi != NULL); | |
1da177e4 | 690 | |
f8739c3c | 691 | unregister_shrinker(&qi->qi_shrinker); |
f5e1dd34 | 692 | list_lru_destroy(&qi->qi_lru); |
f8739c3c | 693 | |
1da177e4 | 694 | if (qi->qi_uquotaip) { |
26cc0021 | 695 | IRELE(qi->qi_uquotaip); |
1da177e4 LT |
696 | qi->qi_uquotaip = NULL; /* paranoia */ |
697 | } | |
698 | if (qi->qi_gquotaip) { | |
26cc0021 | 699 | IRELE(qi->qi_gquotaip); |
1da177e4 LT |
700 | qi->qi_gquotaip = NULL; |
701 | } | |
92f8ff73 CS |
702 | if (qi->qi_pquotaip) { |
703 | IRELE(qi->qi_pquotaip); | |
704 | qi->qi_pquotaip = NULL; | |
705 | } | |
1da177e4 | 706 | mutex_destroy(&qi->qi_quotaofflock); |
f0e2d93c | 707 | kmem_free(qi); |
1da177e4 LT |
708 | mp->m_quotainfo = NULL; |
709 | } | |
710 | ||
1da177e4 LT |
711 | /* |
712 | * Create an inode and return with a reference already taken, but unlocked | |
713 | * This is how we create quota inodes | |
714 | */ | |
715 | STATIC int | |
716 | xfs_qm_qino_alloc( | |
717 | xfs_mount_t *mp, | |
718 | xfs_inode_t **ip, | |
719 | __int64_t sbfields, | |
720 | uint flags) | |
721 | { | |
722 | xfs_trans_t *tp; | |
723 | int error; | |
1da177e4 LT |
724 | int committed; |
725 | ||
d892d586 CS |
726 | *ip = NULL; |
727 | /* | |
728 | * With superblock that doesn't have separate pquotino, we | |
729 | * share an inode between gquota and pquota. If the on-disk | |
730 | * superblock has GQUOTA and the filesystem is now mounted | |
731 | * with PQUOTA, just use sb_gquotino for sb_pquotino and | |
732 | * vice-versa. | |
733 | */ | |
734 | if (!xfs_sb_version_has_pquotino(&mp->m_sb) && | |
735 | (flags & (XFS_QMOPT_PQUOTA|XFS_QMOPT_GQUOTA))) { | |
736 | xfs_ino_t ino = NULLFSINO; | |
737 | ||
738 | if ((flags & XFS_QMOPT_PQUOTA) && | |
739 | (mp->m_sb.sb_gquotino != NULLFSINO)) { | |
740 | ino = mp->m_sb.sb_gquotino; | |
741 | ASSERT(mp->m_sb.sb_pquotino == NULLFSINO); | |
742 | } else if ((flags & XFS_QMOPT_GQUOTA) && | |
743 | (mp->m_sb.sb_pquotino != NULLFSINO)) { | |
744 | ino = mp->m_sb.sb_pquotino; | |
745 | ASSERT(mp->m_sb.sb_gquotino == NULLFSINO); | |
746 | } | |
747 | if (ino != NULLFSINO) { | |
748 | error = xfs_iget(mp, NULL, ino, 0, 0, ip); | |
749 | if (error) | |
750 | return error; | |
751 | mp->m_sb.sb_gquotino = NULLFSINO; | |
752 | mp->m_sb.sb_pquotino = NULLFSINO; | |
753 | } | |
754 | } | |
755 | ||
061f7209 | 756 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QINOCREATE); |
3d3c8b52 JL |
757 | error = xfs_trans_reserve(tp, &M_RES(mp)->tr_create, |
758 | XFS_QM_QINOCREATE_SPACE_RES(mp), 0); | |
759 | if (error) { | |
1da177e4 | 760 | xfs_trans_cancel(tp, 0); |
014c2544 | 761 | return error; |
1da177e4 | 762 | } |
1da177e4 | 763 | |
d892d586 CS |
764 | if (!*ip) { |
765 | error = xfs_dir_ialloc(&tp, NULL, S_IFREG, 1, 0, 0, 1, ip, | |
766 | &committed); | |
767 | if (error) { | |
768 | xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | | |
769 | XFS_TRANS_ABORT); | |
770 | return error; | |
771 | } | |
1da177e4 LT |
772 | } |
773 | ||
1da177e4 LT |
774 | /* |
775 | * Make the changes in the superblock, and log those too. | |
776 | * sbfields arg may contain fields other than *QUOTINO; | |
777 | * VERSIONNUM for example. | |
778 | */ | |
3685c2a1 | 779 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 780 | if (flags & XFS_QMOPT_SBVERSION) { |
62118709 | 781 | ASSERT(!xfs_sb_version_hasquota(&mp->m_sb)); |
1da177e4 | 782 | ASSERT((sbfields & (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | |
d892d586 CS |
783 | XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | XFS_SB_QFLAGS)) == |
784 | (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | | |
785 | XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | | |
786 | XFS_SB_QFLAGS)); | |
1da177e4 | 787 | |
62118709 | 788 | xfs_sb_version_addquota(&mp->m_sb); |
1da177e4 LT |
789 | mp->m_sb.sb_uquotino = NULLFSINO; |
790 | mp->m_sb.sb_gquotino = NULLFSINO; | |
d892d586 | 791 | mp->m_sb.sb_pquotino = NULLFSINO; |
1da177e4 | 792 | |
d892d586 CS |
793 | /* qflags will get updated fully _after_ quotacheck */ |
794 | mp->m_sb.sb_qflags = mp->m_qflags & XFS_ALL_QUOTA_ACCT; | |
1da177e4 LT |
795 | } |
796 | if (flags & XFS_QMOPT_UQUOTA) | |
797 | mp->m_sb.sb_uquotino = (*ip)->i_ino; | |
d892d586 | 798 | else if (flags & XFS_QMOPT_GQUOTA) |
1da177e4 | 799 | mp->m_sb.sb_gquotino = (*ip)->i_ino; |
d892d586 CS |
800 | else |
801 | mp->m_sb.sb_pquotino = (*ip)->i_ino; | |
3685c2a1 | 802 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
803 | xfs_mod_sb(tp, sbfields); |
804 | ||
1c72bf90 | 805 | if ((error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES))) { |
53487786 | 806 | xfs_alert(mp, "%s failed (error %d)!", __func__, error); |
014c2544 | 807 | return error; |
1da177e4 | 808 | } |
014c2544 | 809 | return 0; |
1da177e4 LT |
810 | } |
811 | ||
812 | ||
5b139738 | 813 | STATIC void |
1da177e4 LT |
814 | xfs_qm_reset_dqcounts( |
815 | xfs_mount_t *mp, | |
816 | xfs_buf_t *bp, | |
817 | xfs_dqid_t id, | |
818 | uint type) | |
819 | { | |
6fcdc59d | 820 | struct xfs_dqblk *dqb; |
1da177e4 LT |
821 | int j; |
822 | ||
0b1b213f CH |
823 | trace_xfs_reset_dqcounts(bp, _RET_IP_); |
824 | ||
1da177e4 LT |
825 | /* |
826 | * Reset all counters and timers. They'll be | |
827 | * started afresh by xfs_qm_quotacheck. | |
828 | */ | |
829 | #ifdef DEBUG | |
830 | j = XFS_FSB_TO_B(mp, XFS_DQUOT_CLUSTER_SIZE_FSB); | |
831 | do_div(j, sizeof(xfs_dqblk_t)); | |
8a7b8a89 | 832 | ASSERT(mp->m_quotainfo->qi_dqperchunk == j); |
1da177e4 | 833 | #endif |
6fcdc59d | 834 | dqb = bp->b_addr; |
8a7b8a89 | 835 | for (j = 0; j < mp->m_quotainfo->qi_dqperchunk; j++) { |
6fcdc59d DC |
836 | struct xfs_disk_dquot *ddq; |
837 | ||
838 | ddq = (struct xfs_disk_dquot *)&dqb[j]; | |
839 | ||
1da177e4 LT |
840 | /* |
841 | * Do a sanity check, and if needed, repair the dqblk. Don't | |
842 | * output any warnings because it's perfectly possible to | |
9aede1d8 | 843 | * find uninitialised dquot blks. See comment in xfs_dqcheck. |
1da177e4 | 844 | */ |
9aede1d8 DC |
845 | xfs_dqcheck(mp, ddq, id+j, type, XFS_QMOPT_DQREPAIR, |
846 | "xfs_quotacheck"); | |
1149d96a CH |
847 | ddq->d_bcount = 0; |
848 | ddq->d_icount = 0; | |
849 | ddq->d_rtbcount = 0; | |
850 | ddq->d_btimer = 0; | |
851 | ddq->d_itimer = 0; | |
852 | ddq->d_rtbtimer = 0; | |
853 | ddq->d_bwarns = 0; | |
854 | ddq->d_iwarns = 0; | |
855 | ddq->d_rtbwarns = 0; | |
6fcdc59d DC |
856 | |
857 | if (xfs_sb_version_hascrc(&mp->m_sb)) { | |
858 | xfs_update_cksum((char *)&dqb[j], | |
859 | sizeof(struct xfs_dqblk), | |
860 | XFS_DQUOT_CRC_OFF); | |
861 | } | |
1da177e4 | 862 | } |
1da177e4 LT |
863 | } |
864 | ||
865 | STATIC int | |
866 | xfs_qm_dqiter_bufs( | |
43ff2122 CH |
867 | struct xfs_mount *mp, |
868 | xfs_dqid_t firstid, | |
869 | xfs_fsblock_t bno, | |
870 | xfs_filblks_t blkcnt, | |
871 | uint flags, | |
872 | struct list_head *buffer_list) | |
1da177e4 | 873 | { |
43ff2122 CH |
874 | struct xfs_buf *bp; |
875 | int error; | |
876 | int type; | |
1da177e4 LT |
877 | |
878 | ASSERT(blkcnt > 0); | |
c8ad20ff NS |
879 | type = flags & XFS_QMOPT_UQUOTA ? XFS_DQ_USER : |
880 | (flags & XFS_QMOPT_PQUOTA ? XFS_DQ_PROJ : XFS_DQ_GROUP); | |
1da177e4 LT |
881 | error = 0; |
882 | ||
883 | /* | |
884 | * Blkcnt arg can be a very big number, and might even be | |
885 | * larger than the log itself. So, we have to break it up into | |
886 | * manageable-sized transactions. | |
887 | * Note that we don't start a permanent transaction here; we might | |
888 | * not be able to get a log reservation for the whole thing up front, | |
889 | * and we don't really care to either, because we just discard | |
890 | * everything if we were to crash in the middle of this loop. | |
891 | */ | |
892 | while (blkcnt--) { | |
893 | error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, | |
894 | XFS_FSB_TO_DADDR(mp, bno), | |
c6319198 | 895 | mp->m_quotainfo->qi_dqchunklen, 0, &bp, |
1813dd64 | 896 | &xfs_dquot_buf_ops); |
1da177e4 | 897 | |
3fe58f30 | 898 | /* |
6fcdc59d DC |
899 | * CRC and validation errors will return a EFSCORRUPTED here. If |
900 | * this occurs, re-read without CRC validation so that we can | |
901 | * repair the damage via xfs_qm_reset_dqcounts(). This process | |
902 | * will leave a trace in the log indicating corruption has | |
903 | * been detected. | |
3fe58f30 | 904 | */ |
2451337d | 905 | if (error == -EFSCORRUPTED) { |
6fcdc59d DC |
906 | error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, |
907 | XFS_FSB_TO_DADDR(mp, bno), | |
908 | mp->m_quotainfo->qi_dqchunklen, 0, &bp, | |
909 | NULL); | |
910 | } | |
911 | ||
912 | if (error) | |
913 | break; | |
914 | ||
5fd364fe DC |
915 | /* |
916 | * A corrupt buffer might not have a verifier attached, so | |
917 | * make sure we have the correct one attached before writeback | |
918 | * occurs. | |
919 | */ | |
920 | bp->b_ops = &xfs_dquot_buf_ops; | |
5b139738 | 921 | xfs_qm_reset_dqcounts(mp, bp, firstid, type); |
43ff2122 | 922 | xfs_buf_delwri_queue(bp, buffer_list); |
61551f1e | 923 | xfs_buf_relse(bp); |
6fcdc59d DC |
924 | |
925 | /* goto the next block. */ | |
1da177e4 | 926 | bno++; |
8a7b8a89 | 927 | firstid += mp->m_quotainfo->qi_dqperchunk; |
1da177e4 | 928 | } |
43ff2122 | 929 | |
014c2544 | 930 | return error; |
1da177e4 LT |
931 | } |
932 | ||
933 | /* | |
c8ad20ff | 934 | * Iterate over all allocated USR/GRP/PRJ dquots in the system, calling a |
1da177e4 LT |
935 | * caller supplied function for every chunk of dquots that we find. |
936 | */ | |
937 | STATIC int | |
938 | xfs_qm_dqiterate( | |
43ff2122 CH |
939 | struct xfs_mount *mp, |
940 | struct xfs_inode *qip, | |
941 | uint flags, | |
942 | struct list_head *buffer_list) | |
1da177e4 | 943 | { |
43ff2122 | 944 | struct xfs_bmbt_irec *map; |
1da177e4 LT |
945 | int i, nmaps; /* number of map entries */ |
946 | int error; /* return value */ | |
947 | xfs_fileoff_t lblkno; | |
948 | xfs_filblks_t maxlblkcnt; | |
949 | xfs_dqid_t firstid; | |
950 | xfs_fsblock_t rablkno; | |
951 | xfs_filblks_t rablkcnt; | |
952 | ||
953 | error = 0; | |
954 | /* | |
c41564b5 | 955 | * This looks racy, but we can't keep an inode lock across a |
1da177e4 LT |
956 | * trans_reserve. But, this gets called during quotacheck, and that |
957 | * happens only at mount time which is single threaded. | |
958 | */ | |
959 | if (qip->i_d.di_nblocks == 0) | |
014c2544 | 960 | return 0; |
1da177e4 LT |
961 | |
962 | map = kmem_alloc(XFS_DQITER_MAP_SIZE * sizeof(*map), KM_SLEEP); | |
963 | ||
964 | lblkno = 0; | |
32972383 | 965 | maxlblkcnt = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes); |
1da177e4 | 966 | do { |
da51d32d CH |
967 | uint lock_mode; |
968 | ||
1da177e4 LT |
969 | nmaps = XFS_DQITER_MAP_SIZE; |
970 | /* | |
971 | * We aren't changing the inode itself. Just changing | |
972 | * some of its data. No new blocks are added here, and | |
973 | * the inode is never added to the transaction. | |
974 | */ | |
da51d32d | 975 | lock_mode = xfs_ilock_data_map_shared(qip); |
5c8ed202 DC |
976 | error = xfs_bmapi_read(qip, lblkno, maxlblkcnt - lblkno, |
977 | map, &nmaps, 0); | |
da51d32d | 978 | xfs_iunlock(qip, lock_mode); |
1da177e4 LT |
979 | if (error) |
980 | break; | |
981 | ||
982 | ASSERT(nmaps <= XFS_DQITER_MAP_SIZE); | |
983 | for (i = 0; i < nmaps; i++) { | |
984 | ASSERT(map[i].br_startblock != DELAYSTARTBLOCK); | |
985 | ASSERT(map[i].br_blockcount); | |
986 | ||
987 | ||
988 | lblkno += map[i].br_blockcount; | |
989 | ||
990 | if (map[i].br_startblock == HOLESTARTBLOCK) | |
991 | continue; | |
992 | ||
993 | firstid = (xfs_dqid_t) map[i].br_startoff * | |
8a7b8a89 | 994 | mp->m_quotainfo->qi_dqperchunk; |
1da177e4 LT |
995 | /* |
996 | * Do a read-ahead on the next extent. | |
997 | */ | |
998 | if ((i+1 < nmaps) && | |
999 | (map[i+1].br_startblock != HOLESTARTBLOCK)) { | |
1000 | rablkcnt = map[i+1].br_blockcount; | |
1001 | rablkno = map[i+1].br_startblock; | |
1002 | while (rablkcnt--) { | |
1a1a3e97 | 1003 | xfs_buf_readahead(mp->m_ddev_targp, |
1da177e4 | 1004 | XFS_FSB_TO_DADDR(mp, rablkno), |
c3f8fc73 | 1005 | mp->m_quotainfo->qi_dqchunklen, |
5fd364fe | 1006 | &xfs_dquot_buf_ops); |
1da177e4 LT |
1007 | rablkno++; |
1008 | } | |
1009 | } | |
1010 | /* | |
1011 | * Iterate thru all the blks in the extent and | |
1012 | * reset the counters of all the dquots inside them. | |
1013 | */ | |
43ff2122 CH |
1014 | error = xfs_qm_dqiter_bufs(mp, firstid, |
1015 | map[i].br_startblock, | |
1016 | map[i].br_blockcount, | |
1017 | flags, buffer_list); | |
1018 | if (error) | |
1019 | goto out; | |
1da177e4 | 1020 | } |
1da177e4 LT |
1021 | } while (nmaps > 0); |
1022 | ||
43ff2122 | 1023 | out: |
f0e2d93c | 1024 | kmem_free(map); |
014c2544 | 1025 | return error; |
1da177e4 LT |
1026 | } |
1027 | ||
1028 | /* | |
1029 | * Called by dqusage_adjust in doing a quotacheck. | |
52fda114 CH |
1030 | * |
1031 | * Given the inode, and a dquot id this updates both the incore dqout as well | |
1032 | * as the buffer copy. This is so that once the quotacheck is done, we can | |
1033 | * just log all the buffers, as opposed to logging numerous updates to | |
1034 | * individual dquots. | |
1da177e4 | 1035 | */ |
52fda114 | 1036 | STATIC int |
1da177e4 | 1037 | xfs_qm_quotacheck_dqadjust( |
52fda114 CH |
1038 | struct xfs_inode *ip, |
1039 | xfs_dqid_t id, | |
1040 | uint type, | |
1da177e4 LT |
1041 | xfs_qcnt_t nblks, |
1042 | xfs_qcnt_t rtblks) | |
1043 | { | |
52fda114 CH |
1044 | struct xfs_mount *mp = ip->i_mount; |
1045 | struct xfs_dquot *dqp; | |
1046 | int error; | |
1047 | ||
1048 | error = xfs_qm_dqget(mp, ip, id, type, | |
1049 | XFS_QMOPT_DQALLOC | XFS_QMOPT_DOWARN, &dqp); | |
1050 | if (error) { | |
1051 | /* | |
1052 | * Shouldn't be able to turn off quotas here. | |
1053 | */ | |
2451337d DC |
1054 | ASSERT(error != -ESRCH); |
1055 | ASSERT(error != -ENOENT); | |
52fda114 CH |
1056 | return error; |
1057 | } | |
0b1b213f CH |
1058 | |
1059 | trace_xfs_dqadjust(dqp); | |
1060 | ||
1da177e4 LT |
1061 | /* |
1062 | * Adjust the inode count and the block count to reflect this inode's | |
1063 | * resource usage. | |
1064 | */ | |
413d57c9 | 1065 | be64_add_cpu(&dqp->q_core.d_icount, 1); |
1da177e4 LT |
1066 | dqp->q_res_icount++; |
1067 | if (nblks) { | |
413d57c9 | 1068 | be64_add_cpu(&dqp->q_core.d_bcount, nblks); |
1da177e4 LT |
1069 | dqp->q_res_bcount += nblks; |
1070 | } | |
1071 | if (rtblks) { | |
413d57c9 | 1072 | be64_add_cpu(&dqp->q_core.d_rtbcount, rtblks); |
1da177e4 LT |
1073 | dqp->q_res_rtbcount += rtblks; |
1074 | } | |
1075 | ||
1076 | /* | |
1077 | * Set default limits, adjust timers (since we changed usages) | |
191f8488 CH |
1078 | * |
1079 | * There are no timers for the default values set in the root dquot. | |
1da177e4 | 1080 | */ |
191f8488 | 1081 | if (dqp->q_core.d_id) { |
4b6eae2e | 1082 | xfs_qm_adjust_dqlimits(mp, dqp); |
52fda114 | 1083 | xfs_qm_adjust_dqtimers(mp, &dqp->q_core); |
1da177e4 LT |
1084 | } |
1085 | ||
1086 | dqp->dq_flags |= XFS_DQ_DIRTY; | |
52fda114 CH |
1087 | xfs_qm_dqput(dqp); |
1088 | return 0; | |
1da177e4 LT |
1089 | } |
1090 | ||
1091 | STATIC int | |
1092 | xfs_qm_get_rtblks( | |
1093 | xfs_inode_t *ip, | |
1094 | xfs_qcnt_t *O_rtblks) | |
1095 | { | |
1096 | xfs_filblks_t rtblks; /* total rt blks */ | |
4eea22f0 | 1097 | xfs_extnum_t idx; /* extent record index */ |
1da177e4 LT |
1098 | xfs_ifork_t *ifp; /* inode fork pointer */ |
1099 | xfs_extnum_t nextents; /* number of extent entries */ | |
1da177e4 LT |
1100 | int error; |
1101 | ||
1102 | ASSERT(XFS_IS_REALTIME_INODE(ip)); | |
1103 | ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK); | |
1104 | if (!(ifp->if_flags & XFS_IFEXTENTS)) { | |
1105 | if ((error = xfs_iread_extents(NULL, ip, XFS_DATA_FORK))) | |
014c2544 | 1106 | return error; |
1da177e4 LT |
1107 | } |
1108 | rtblks = 0; | |
4eea22f0 | 1109 | nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t); |
a6f64d4a CH |
1110 | for (idx = 0; idx < nextents; idx++) |
1111 | rtblks += xfs_bmbt_get_blockcount(xfs_iext_get_ext(ifp, idx)); | |
1da177e4 | 1112 | *O_rtblks = (xfs_qcnt_t)rtblks; |
014c2544 | 1113 | return 0; |
1da177e4 LT |
1114 | } |
1115 | ||
1116 | /* | |
1117 | * callback routine supplied to bulkstat(). Given an inumber, find its | |
1118 | * dquots and update them to account for resources taken by that inode. | |
1119 | */ | |
1120 | /* ARGSUSED */ | |
1121 | STATIC int | |
1122 | xfs_qm_dqusage_adjust( | |
1123 | xfs_mount_t *mp, /* mount point for filesystem */ | |
1124 | xfs_ino_t ino, /* inode number to get data for */ | |
1125 | void __user *buffer, /* not used */ | |
1126 | int ubsize, /* not used */ | |
1da177e4 | 1127 | int *ubused, /* not used */ |
1da177e4 LT |
1128 | int *res) /* result code value */ |
1129 | { | |
1130 | xfs_inode_t *ip; | |
52fda114 | 1131 | xfs_qcnt_t nblks, rtblks = 0; |
1da177e4 LT |
1132 | int error; |
1133 | ||
1134 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
1135 | ||
1136 | /* | |
1137 | * rootino must have its resources accounted for, not so with the quota | |
1138 | * inodes. | |
1139 | */ | |
9cad19d2 | 1140 | if (xfs_is_quota_inode(&mp->m_sb, ino)) { |
1da177e4 | 1141 | *res = BULKSTAT_RV_NOTHING; |
2451337d | 1142 | return -EINVAL; |
1da177e4 LT |
1143 | } |
1144 | ||
1145 | /* | |
1146 | * We don't _need_ to take the ilock EXCL. However, the xfs_qm_dqget | |
1147 | * interface expects the inode to be exclusively locked because that's | |
1148 | * the case in all other instances. It's OK that we do this because | |
1149 | * quotacheck is done only at mount time. | |
1150 | */ | |
52fda114 CH |
1151 | error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_EXCL, &ip); |
1152 | if (error) { | |
1da177e4 | 1153 | *res = BULKSTAT_RV_NOTHING; |
014c2544 | 1154 | return error; |
1da177e4 LT |
1155 | } |
1156 | ||
52fda114 | 1157 | ASSERT(ip->i_delayed_blks == 0); |
1da177e4 | 1158 | |
52fda114 | 1159 | if (XFS_IS_REALTIME_INODE(ip)) { |
1da177e4 LT |
1160 | /* |
1161 | * Walk thru the extent list and count the realtime blocks. | |
1162 | */ | |
52fda114 CH |
1163 | error = xfs_qm_get_rtblks(ip, &rtblks); |
1164 | if (error) | |
1165 | goto error0; | |
1da177e4 | 1166 | } |
1da177e4 | 1167 | |
52fda114 | 1168 | nblks = (xfs_qcnt_t)ip->i_d.di_nblocks - rtblks; |
1da177e4 LT |
1169 | |
1170 | /* | |
1171 | * Add the (disk blocks and inode) resources occupied by this | |
1172 | * inode to its dquots. We do this adjustment in the incore dquot, | |
1173 | * and also copy the changes to its buffer. | |
1174 | * We don't care about putting these changes in a transaction | |
1175 | * envelope because if we crash in the middle of a 'quotacheck' | |
1176 | * we have to start from the beginning anyway. | |
1177 | * Once we're done, we'll log all the dquot bufs. | |
1178 | * | |
c41564b5 | 1179 | * The *QUOTA_ON checks below may look pretty racy, but quotachecks |
1da177e4 LT |
1180 | * and quotaoffs don't race. (Quotachecks happen at mount time only). |
1181 | */ | |
1182 | if (XFS_IS_UQUOTA_ON(mp)) { | |
52fda114 CH |
1183 | error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_uid, |
1184 | XFS_DQ_USER, nblks, rtblks); | |
1185 | if (error) | |
1186 | goto error0; | |
1da177e4 | 1187 | } |
52fda114 CH |
1188 | |
1189 | if (XFS_IS_GQUOTA_ON(mp)) { | |
1190 | error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_gid, | |
1191 | XFS_DQ_GROUP, nblks, rtblks); | |
1192 | if (error) | |
1193 | goto error0; | |
1da177e4 | 1194 | } |
1da177e4 | 1195 | |
52fda114 | 1196 | if (XFS_IS_PQUOTA_ON(mp)) { |
6743099c | 1197 | error = xfs_qm_quotacheck_dqadjust(ip, xfs_get_projid(ip), |
52fda114 CH |
1198 | XFS_DQ_PROJ, nblks, rtblks); |
1199 | if (error) | |
1200 | goto error0; | |
1201 | } | |
1202 | ||
1203 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1204 | IRELE(ip); | |
1da177e4 | 1205 | *res = BULKSTAT_RV_DIDONE; |
014c2544 | 1206 | return 0; |
52fda114 CH |
1207 | |
1208 | error0: | |
1209 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1210 | IRELE(ip); | |
1211 | *res = BULKSTAT_RV_GIVEUP; | |
1212 | return error; | |
1da177e4 LT |
1213 | } |
1214 | ||
b84a3a96 CH |
1215 | STATIC int |
1216 | xfs_qm_flush_one( | |
43ff2122 CH |
1217 | struct xfs_dquot *dqp, |
1218 | void *data) | |
b84a3a96 | 1219 | { |
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 | ||
43ff2122 | 1230 | xfs_dqflock(dqp); |
fe7257fd CH |
1231 | error = xfs_qm_dqflush(dqp, &bp); |
1232 | if (error) | |
1233 | goto out_unlock; | |
b84a3a96 | 1234 | |
43ff2122 | 1235 | xfs_buf_delwri_queue(bp, buffer_list); |
fe7257fd | 1236 | xfs_buf_relse(bp); |
b84a3a96 CH |
1237 | out_unlock: |
1238 | xfs_dqunlock(dqp); | |
1239 | return error; | |
1240 | } | |
1241 | ||
1da177e4 LT |
1242 | /* |
1243 | * Walk thru all the filesystem inodes and construct a consistent view | |
1244 | * of the disk quota world. If the quotacheck fails, disable quotas. | |
1245 | */ | |
eb866bbf | 1246 | STATIC int |
1da177e4 LT |
1247 | xfs_qm_quotacheck( |
1248 | xfs_mount_t *mp) | |
1249 | { | |
113a5683 CS |
1250 | int done, count, error, error2; |
1251 | xfs_ino_t lastino; | |
1252 | size_t structsz; | |
1253 | uint flags; | |
1254 | LIST_HEAD (buffer_list); | |
1255 | struct xfs_inode *uip = mp->m_quotainfo->qi_uquotaip; | |
1256 | struct xfs_inode *gip = mp->m_quotainfo->qi_gquotaip; | |
92f8ff73 | 1257 | struct xfs_inode *pip = mp->m_quotainfo->qi_pquotaip; |
1da177e4 LT |
1258 | |
1259 | count = INT_MAX; | |
1260 | structsz = 1; | |
1261 | lastino = 0; | |
1262 | flags = 0; | |
1263 | ||
92f8ff73 | 1264 | ASSERT(uip || gip || pip); |
1da177e4 LT |
1265 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1266 | ||
0b932ccc | 1267 | xfs_notice(mp, "Quotacheck needed: Please wait."); |
1da177e4 LT |
1268 | |
1269 | /* | |
c8ad20ff | 1270 | * First we go thru all the dquots on disk, USR and GRP/PRJ, and reset |
1da177e4 LT |
1271 | * their counters to zero. We need a clean slate. |
1272 | * We don't log our changes till later. | |
1273 | */ | |
8a7b8a89 | 1274 | if (uip) { |
43ff2122 CH |
1275 | error = xfs_qm_dqiterate(mp, uip, XFS_QMOPT_UQUOTA, |
1276 | &buffer_list); | |
8a7b8a89 | 1277 | if (error) |
1da177e4 LT |
1278 | goto error_return; |
1279 | flags |= XFS_UQUOTA_CHKD; | |
1280 | } | |
1281 | ||
8a7b8a89 | 1282 | if (gip) { |
92f8ff73 | 1283 | error = xfs_qm_dqiterate(mp, gip, XFS_QMOPT_GQUOTA, |
43ff2122 | 1284 | &buffer_list); |
8a7b8a89 | 1285 | if (error) |
1da177e4 | 1286 | goto error_return; |
92f8ff73 CS |
1287 | flags |= XFS_GQUOTA_CHKD; |
1288 | } | |
1289 | ||
1290 | if (pip) { | |
1291 | error = xfs_qm_dqiterate(mp, pip, XFS_QMOPT_PQUOTA, | |
1292 | &buffer_list); | |
1293 | if (error) | |
1294 | goto error_return; | |
1295 | flags |= XFS_PQUOTA_CHKD; | |
1da177e4 LT |
1296 | } |
1297 | ||
1298 | do { | |
1299 | /* | |
1300 | * Iterate thru all the inodes in the file system, | |
1301 | * adjusting the corresponding dquot counters in core. | |
1302 | */ | |
7dce11db CH |
1303 | error = xfs_bulkstat(mp, &lastino, &count, |
1304 | xfs_qm_dqusage_adjust, | |
1305 | structsz, NULL, &done); | |
1306 | if (error) | |
1da177e4 LT |
1307 | break; |
1308 | ||
7dce11db | 1309 | } while (!done); |
1da177e4 | 1310 | |
4b8879df | 1311 | /* |
b84a3a96 CH |
1312 | * We've made all the changes that we need to make incore. Flush them |
1313 | * down to disk buffers if everything was updated successfully. | |
4b8879df | 1314 | */ |
43ff2122 CH |
1315 | if (XFS_IS_UQUOTA_ON(mp)) { |
1316 | error = xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_flush_one, | |
1317 | &buffer_list); | |
1318 | } | |
b84a3a96 | 1319 | if (XFS_IS_GQUOTA_ON(mp)) { |
43ff2122 CH |
1320 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_flush_one, |
1321 | &buffer_list); | |
b84a3a96 CH |
1322 | if (!error) |
1323 | error = error2; | |
1324 | } | |
1325 | if (XFS_IS_PQUOTA_ON(mp)) { | |
43ff2122 CH |
1326 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_flush_one, |
1327 | &buffer_list); | |
b84a3a96 CH |
1328 | if (!error) |
1329 | error = error2; | |
1330 | } | |
4b8879df | 1331 | |
43ff2122 CH |
1332 | error2 = xfs_buf_delwri_submit(&buffer_list); |
1333 | if (!error) | |
1334 | error = error2; | |
1335 | ||
1da177e4 LT |
1336 | /* |
1337 | * We can get this error if we couldn't do a dquot allocation inside | |
1338 | * xfs_qm_dqusage_adjust (via bulkstat). We don't care about the | |
1339 | * dirty dquots that might be cached, we just want to get rid of them | |
1340 | * and turn quotaoff. The dquots won't be attached to any of the inodes | |
1341 | * at this point (because we intentionally didn't in dqget_noattach). | |
1342 | */ | |
1343 | if (error) { | |
8112e9dc | 1344 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
1da177e4 LT |
1345 | goto error_return; |
1346 | } | |
1da177e4 | 1347 | |
1da177e4 LT |
1348 | /* |
1349 | * If one type of quotas is off, then it will lose its | |
1350 | * quotachecked status, since we won't be doing accounting for | |
1351 | * that type anymore. | |
1352 | */ | |
4177af3a | 1353 | mp->m_qflags &= ~XFS_ALL_QUOTA_CHKD; |
1da177e4 LT |
1354 | mp->m_qflags |= flags; |
1355 | ||
1da177e4 | 1356 | error_return: |
43ff2122 CH |
1357 | while (!list_empty(&buffer_list)) { |
1358 | struct xfs_buf *bp = | |
1359 | list_first_entry(&buffer_list, struct xfs_buf, b_list); | |
1360 | list_del_init(&bp->b_list); | |
1361 | xfs_buf_relse(bp); | |
1362 | } | |
1363 | ||
1da177e4 | 1364 | if (error) { |
0b932ccc DC |
1365 | xfs_warn(mp, |
1366 | "Quotacheck: Unsuccessful (Error %d): Disabling quotas.", | |
1367 | error); | |
1da177e4 LT |
1368 | /* |
1369 | * We must turn off quotas. | |
1370 | */ | |
1371 | ASSERT(mp->m_quotainfo != NULL); | |
1da177e4 | 1372 | xfs_qm_destroy_quotainfo(mp); |
31d5577b | 1373 | if (xfs_mount_reset_sbqflags(mp)) { |
0b932ccc DC |
1374 | xfs_warn(mp, |
1375 | "Quotacheck: Failed to reset quota flags."); | |
31d5577b | 1376 | } |
0b932ccc DC |
1377 | } else |
1378 | xfs_notice(mp, "Quotacheck: Done."); | |
d99831ff | 1379 | return error; |
1da177e4 LT |
1380 | } |
1381 | ||
eb866bbf JL |
1382 | /* |
1383 | * This is called from xfs_mountfs to start quotas and initialize all | |
1384 | * necessary data structures like quotainfo. This is also responsible for | |
1385 | * running a quotacheck as necessary. We are guaranteed that the superblock | |
1386 | * is consistently read in at this point. | |
1387 | * | |
1388 | * If we fail here, the mount will continue with quota turned off. We don't | |
1389 | * need to inidicate success or failure at all. | |
1390 | */ | |
1391 | void | |
1392 | xfs_qm_mount_quotas( | |
1393 | struct xfs_mount *mp) | |
1394 | { | |
1395 | int error = 0; | |
1396 | uint sbf; | |
1397 | ||
1398 | /* | |
1399 | * If quotas on realtime volumes is not supported, we disable | |
1400 | * quotas immediately. | |
1401 | */ | |
1402 | if (mp->m_sb.sb_rextents) { | |
1403 | xfs_notice(mp, "Cannot turn on quotas for realtime filesystem"); | |
1404 | mp->m_qflags = 0; | |
1405 | goto write_changes; | |
1406 | } | |
1407 | ||
1408 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
1409 | ||
1410 | /* | |
1411 | * Allocate the quotainfo structure inside the mount struct, and | |
1412 | * create quotainode(s), and change/rev superblock if necessary. | |
1413 | */ | |
1414 | error = xfs_qm_init_quotainfo(mp); | |
1415 | if (error) { | |
1416 | /* | |
1417 | * We must turn off quotas. | |
1418 | */ | |
1419 | ASSERT(mp->m_quotainfo == NULL); | |
1420 | mp->m_qflags = 0; | |
1421 | goto write_changes; | |
1422 | } | |
1423 | /* | |
1424 | * If any of the quotas are not consistent, do a quotacheck. | |
1425 | */ | |
1426 | if (XFS_QM_NEED_QUOTACHECK(mp)) { | |
1427 | error = xfs_qm_quotacheck(mp); | |
1428 | if (error) { | |
1429 | /* Quotacheck failed and disabled quotas. */ | |
1430 | return; | |
1431 | } | |
1432 | } | |
1433 | /* | |
1434 | * If one type of quotas is off, then it will lose its | |
1435 | * quotachecked status, since we won't be doing accounting for | |
1436 | * that type anymore. | |
1437 | */ | |
1438 | if (!XFS_IS_UQUOTA_ON(mp)) | |
1439 | mp->m_qflags &= ~XFS_UQUOTA_CHKD; | |
1440 | if (!XFS_IS_GQUOTA_ON(mp)) | |
1441 | mp->m_qflags &= ~XFS_GQUOTA_CHKD; | |
1442 | if (!XFS_IS_PQUOTA_ON(mp)) | |
1443 | mp->m_qflags &= ~XFS_PQUOTA_CHKD; | |
1444 | ||
1445 | write_changes: | |
1446 | /* | |
1447 | * We actually don't have to acquire the m_sb_lock at all. | |
1448 | * This can only be called from mount, and that's single threaded. XXX | |
1449 | */ | |
1450 | spin_lock(&mp->m_sb_lock); | |
1451 | sbf = mp->m_sb.sb_qflags; | |
1452 | mp->m_sb.sb_qflags = mp->m_qflags & XFS_MOUNT_QUOTA_ALL; | |
1453 | spin_unlock(&mp->m_sb_lock); | |
1454 | ||
1455 | if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) { | |
1456 | if (xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS)) { | |
1457 | /* | |
1458 | * We could only have been turning quotas off. | |
1459 | * We aren't in very good shape actually because | |
1460 | * the incore structures are convinced that quotas are | |
1461 | * off, but the on disk superblock doesn't know that ! | |
1462 | */ | |
1463 | ASSERT(!(XFS_IS_QUOTA_RUNNING(mp))); | |
1464 | xfs_alert(mp, "%s: Superblock update failed!", | |
1465 | __func__); | |
1466 | } | |
1467 | } | |
1468 | ||
1469 | if (error) { | |
1470 | xfs_warn(mp, "Failed to initialize disk quotas."); | |
1471 | return; | |
1472 | } | |
1473 | } | |
1474 | ||
1da177e4 LT |
1475 | /* |
1476 | * This is called after the superblock has been read in and we're ready to | |
1477 | * iget the quota inodes. | |
1478 | */ | |
1479 | STATIC int | |
1480 | xfs_qm_init_quotainos( | |
1481 | xfs_mount_t *mp) | |
1482 | { | |
113a5683 CS |
1483 | struct xfs_inode *uip = NULL; |
1484 | struct xfs_inode *gip = NULL; | |
92f8ff73 | 1485 | struct xfs_inode *pip = NULL; |
113a5683 CS |
1486 | int error; |
1487 | __int64_t sbflags = 0; | |
1488 | uint flags = 0; | |
1da177e4 LT |
1489 | |
1490 | ASSERT(mp->m_quotainfo); | |
1da177e4 LT |
1491 | |
1492 | /* | |
1493 | * Get the uquota and gquota inodes | |
1494 | */ | |
62118709 | 1495 | if (xfs_sb_version_hasquota(&mp->m_sb)) { |
1da177e4 LT |
1496 | if (XFS_IS_UQUOTA_ON(mp) && |
1497 | mp->m_sb.sb_uquotino != NULLFSINO) { | |
1498 | ASSERT(mp->m_sb.sb_uquotino > 0); | |
113a5683 CS |
1499 | error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, |
1500 | 0, 0, &uip); | |
1501 | if (error) | |
b474c7ae | 1502 | return error; |
1da177e4 | 1503 | } |
92f8ff73 | 1504 | if (XFS_IS_GQUOTA_ON(mp) && |
1da177e4 LT |
1505 | mp->m_sb.sb_gquotino != NULLFSINO) { |
1506 | ASSERT(mp->m_sb.sb_gquotino > 0); | |
113a5683 CS |
1507 | error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, |
1508 | 0, 0, &gip); | |
1509 | if (error) | |
1510 | goto error_rele; | |
1da177e4 | 1511 | } |
92f8ff73 | 1512 | if (XFS_IS_PQUOTA_ON(mp) && |
d892d586 CS |
1513 | mp->m_sb.sb_pquotino != NULLFSINO) { |
1514 | ASSERT(mp->m_sb.sb_pquotino > 0); | |
1515 | error = xfs_iget(mp, NULL, mp->m_sb.sb_pquotino, | |
92f8ff73 CS |
1516 | 0, 0, &pip); |
1517 | if (error) | |
1518 | goto error_rele; | |
1519 | } | |
1da177e4 LT |
1520 | } else { |
1521 | flags |= XFS_QMOPT_SBVERSION; | |
1522 | sbflags |= (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | | |
d892d586 CS |
1523 | XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | |
1524 | XFS_SB_QFLAGS); | |
1da177e4 LT |
1525 | } |
1526 | ||
1527 | /* | |
92f8ff73 | 1528 | * Create the three inodes, if they don't exist already. The changes |
1da177e4 LT |
1529 | * made above will get added to a transaction and logged in one of |
1530 | * the qino_alloc calls below. If the device is readonly, | |
1531 | * temporarily switch to read-write to do this. | |
1532 | */ | |
1533 | if (XFS_IS_UQUOTA_ON(mp) && uip == NULL) { | |
113a5683 | 1534 | error = xfs_qm_qino_alloc(mp, &uip, |
1da177e4 | 1535 | sbflags | XFS_SB_UQUOTINO, |
113a5683 CS |
1536 | flags | XFS_QMOPT_UQUOTA); |
1537 | if (error) | |
1538 | goto error_rele; | |
1da177e4 LT |
1539 | |
1540 | flags &= ~XFS_QMOPT_SBVERSION; | |
1541 | } | |
92f8ff73 | 1542 | if (XFS_IS_GQUOTA_ON(mp) && gip == NULL) { |
c8ad20ff | 1543 | error = xfs_qm_qino_alloc(mp, &gip, |
92f8ff73 CS |
1544 | sbflags | XFS_SB_GQUOTINO, |
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, |
d892d586 | 1553 | sbflags | XFS_SB_PQUOTINO, |
92f8ff73 | 1554 | flags | XFS_QMOPT_PQUOTA); |
113a5683 CS |
1555 | if (error) |
1556 | goto error_rele; | |
1da177e4 LT |
1557 | } |
1558 | ||
8a7b8a89 CH |
1559 | mp->m_quotainfo->qi_uquotaip = uip; |
1560 | mp->m_quotainfo->qi_gquotaip = gip; | |
92f8ff73 | 1561 | mp->m_quotainfo->qi_pquotaip = pip; |
1da177e4 | 1562 | |
014c2544 | 1563 | return 0; |
113a5683 CS |
1564 | |
1565 | error_rele: | |
1566 | if (uip) | |
1567 | IRELE(uip); | |
1568 | if (gip) | |
1569 | IRELE(gip); | |
92f8ff73 CS |
1570 | if (pip) |
1571 | IRELE(pip); | |
b474c7ae | 1572 | return error; |
1da177e4 LT |
1573 | } |
1574 | ||
92b2e5b3 CH |
1575 | STATIC void |
1576 | xfs_qm_dqfree_one( | |
1577 | struct xfs_dquot *dqp) | |
1578 | { | |
1579 | struct xfs_mount *mp = dqp->q_mount; | |
1580 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
1da177e4 | 1581 | |
9f920f11 | 1582 | mutex_lock(&qi->qi_tree_lock); |
329e0875 | 1583 | radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags), |
9f920f11 | 1584 | be32_to_cpu(dqp->q_core.d_id)); |
368e1361 | 1585 | |
92b2e5b3 | 1586 | qi->qi_dquots--; |
b84a3a96 | 1587 | mutex_unlock(&qi->qi_tree_lock); |
92b2e5b3 CH |
1588 | |
1589 | xfs_qm_dqdestroy(dqp); | |
1590 | } | |
1591 | ||
1da177e4 LT |
1592 | /* |
1593 | * Start a transaction and write the incore superblock changes to | |
1594 | * disk. flags parameter indicates which fields have changed. | |
1595 | */ | |
1596 | int | |
1597 | xfs_qm_write_sb_changes( | |
1598 | xfs_mount_t *mp, | |
1599 | __int64_t flags) | |
1600 | { | |
1601 | xfs_trans_t *tp; | |
1602 | int error; | |
1603 | ||
1da177e4 | 1604 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE); |
3d3c8b52 | 1605 | error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_sbchange, 0, 0); |
f910a8c6 | 1606 | if (error) { |
1da177e4 | 1607 | xfs_trans_cancel(tp, 0); |
014c2544 | 1608 | return error; |
1da177e4 LT |
1609 | } |
1610 | ||
1611 | xfs_mod_sb(tp, flags); | |
e5720eec | 1612 | error = xfs_trans_commit(tp, 0); |
1da177e4 | 1613 | |
e5720eec | 1614 | return error; |
1da177e4 LT |
1615 | } |
1616 | ||
1617 | ||
1618 | /* --------------- utility functions for vnodeops ---------------- */ | |
1619 | ||
1620 | ||
1621 | /* | |
6c77b0ea | 1622 | * Given an inode, a uid, gid and prid make sure that we have |
1da177e4 LT |
1623 | * allocated relevant dquot(s) on disk, and that we won't exceed inode |
1624 | * quotas by creating this file. | |
1625 | * This also attaches dquot(s) to the given inode after locking it, | |
1626 | * and returns the dquots corresponding to the uid and/or gid. | |
1627 | * | |
1628 | * in : inode (unlocked) | |
1629 | * out : udquot, gdquot with references taken and unlocked | |
1630 | */ | |
1631 | int | |
1632 | xfs_qm_vop_dqalloc( | |
7d095257 | 1633 | struct xfs_inode *ip, |
7aab1b28 DE |
1634 | xfs_dqid_t uid, |
1635 | xfs_dqid_t gid, | |
7d095257 CH |
1636 | prid_t prid, |
1637 | uint flags, | |
1638 | struct xfs_dquot **O_udqpp, | |
92f8ff73 CS |
1639 | struct xfs_dquot **O_gdqpp, |
1640 | struct xfs_dquot **O_pdqpp) | |
1da177e4 | 1641 | { |
7d095257 | 1642 | struct xfs_mount *mp = ip->i_mount; |
113a5683 CS |
1643 | struct xfs_dquot *uq = NULL; |
1644 | struct xfs_dquot *gq = NULL; | |
92f8ff73 | 1645 | struct xfs_dquot *pq = NULL; |
7d095257 CH |
1646 | int error; |
1647 | uint lockflags; | |
1da177e4 | 1648 | |
7d095257 | 1649 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
1da177e4 LT |
1650 | return 0; |
1651 | ||
1652 | lockflags = XFS_ILOCK_EXCL; | |
1653 | xfs_ilock(ip, lockflags); | |
1654 | ||
bd186aa9 | 1655 | if ((flags & XFS_QMOPT_INHERIT) && XFS_INHERIT_GID(ip)) |
1da177e4 LT |
1656 | gid = ip->i_d.di_gid; |
1657 | ||
1658 | /* | |
1659 | * Attach the dquot(s) to this inode, doing a dquot allocation | |
1660 | * if necessary. The dquot(s) will not be locked. | |
1661 | */ | |
1662 | if (XFS_NOT_DQATTACHED(mp, ip)) { | |
7d095257 CH |
1663 | error = xfs_qm_dqattach_locked(ip, XFS_QMOPT_DQALLOC); |
1664 | if (error) { | |
1da177e4 | 1665 | xfs_iunlock(ip, lockflags); |
014c2544 | 1666 | return error; |
1da177e4 LT |
1667 | } |
1668 | } | |
1669 | ||
c8ad20ff | 1670 | if ((flags & XFS_QMOPT_UQUOTA) && XFS_IS_UQUOTA_ON(mp)) { |
1da177e4 LT |
1671 | if (ip->i_d.di_uid != uid) { |
1672 | /* | |
1673 | * What we need is the dquot that has this uid, and | |
1674 | * if we send the inode to dqget, the uid of the inode | |
1675 | * takes priority over what's sent in the uid argument. | |
1676 | * We must unlock inode here before calling dqget if | |
1677 | * we're not sending the inode, because otherwise | |
1678 | * we'll deadlock by doing trans_reserve while | |
1679 | * holding ilock. | |
1680 | */ | |
1681 | xfs_iunlock(ip, lockflags); | |
7aab1b28 | 1682 | error = xfs_qm_dqget(mp, NULL, uid, |
1da177e4 LT |
1683 | XFS_DQ_USER, |
1684 | XFS_QMOPT_DQALLOC | | |
1685 | XFS_QMOPT_DOWARN, | |
113a5683 CS |
1686 | &uq); |
1687 | if (error) { | |
2451337d | 1688 | ASSERT(error != -ENOENT); |
014c2544 | 1689 | return error; |
1da177e4 LT |
1690 | } |
1691 | /* | |
1692 | * Get the ilock in the right order. | |
1693 | */ | |
1694 | xfs_dqunlock(uq); | |
1695 | lockflags = XFS_ILOCK_SHARED; | |
1696 | xfs_ilock(ip, lockflags); | |
1697 | } else { | |
1698 | /* | |
1699 | * Take an extra reference, because we'll return | |
1700 | * this to caller | |
1701 | */ | |
1702 | ASSERT(ip->i_udquot); | |
78e55892 | 1703 | uq = xfs_qm_dqhold(ip->i_udquot); |
1da177e4 LT |
1704 | } |
1705 | } | |
c8ad20ff | 1706 | if ((flags & XFS_QMOPT_GQUOTA) && XFS_IS_GQUOTA_ON(mp)) { |
1da177e4 LT |
1707 | if (ip->i_d.di_gid != gid) { |
1708 | xfs_iunlock(ip, lockflags); | |
7aab1b28 | 1709 | error = xfs_qm_dqget(mp, NULL, gid, |
1da177e4 LT |
1710 | XFS_DQ_GROUP, |
1711 | XFS_QMOPT_DQALLOC | | |
1712 | XFS_QMOPT_DOWARN, | |
113a5683 CS |
1713 | &gq); |
1714 | if (error) { | |
2451337d | 1715 | ASSERT(error != -ENOENT); |
113a5683 | 1716 | goto error_rele; |
1da177e4 LT |
1717 | } |
1718 | xfs_dqunlock(gq); | |
1719 | lockflags = XFS_ILOCK_SHARED; | |
1720 | xfs_ilock(ip, lockflags); | |
1721 | } else { | |
1722 | ASSERT(ip->i_gdquot); | |
78e55892 | 1723 | gq = xfs_qm_dqhold(ip->i_gdquot); |
1da177e4 | 1724 | } |
92f8ff73 CS |
1725 | } |
1726 | if ((flags & XFS_QMOPT_PQUOTA) && XFS_IS_PQUOTA_ON(mp)) { | |
6743099c | 1727 | if (xfs_get_projid(ip) != prid) { |
c8ad20ff | 1728 | xfs_iunlock(ip, lockflags); |
113a5683 | 1729 | error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t)prid, |
c8ad20ff NS |
1730 | XFS_DQ_PROJ, |
1731 | XFS_QMOPT_DQALLOC | | |
1732 | XFS_QMOPT_DOWARN, | |
92f8ff73 | 1733 | &pq); |
113a5683 | 1734 | if (error) { |
2451337d | 1735 | ASSERT(error != -ENOENT); |
113a5683 | 1736 | goto error_rele; |
c8ad20ff | 1737 | } |
92f8ff73 | 1738 | xfs_dqunlock(pq); |
c8ad20ff NS |
1739 | lockflags = XFS_ILOCK_SHARED; |
1740 | xfs_ilock(ip, lockflags); | |
1741 | } else { | |
92f8ff73 CS |
1742 | ASSERT(ip->i_pdquot); |
1743 | pq = xfs_qm_dqhold(ip->i_pdquot); | |
c8ad20ff | 1744 | } |
1da177e4 LT |
1745 | } |
1746 | if (uq) | |
0b1b213f | 1747 | trace_xfs_dquot_dqalloc(ip); |
1da177e4 LT |
1748 | |
1749 | xfs_iunlock(ip, lockflags); | |
1750 | if (O_udqpp) | |
1751 | *O_udqpp = uq; | |
1752 | else if (uq) | |
1753 | xfs_qm_dqrele(uq); | |
1754 | if (O_gdqpp) | |
1755 | *O_gdqpp = gq; | |
1756 | else if (gq) | |
1757 | xfs_qm_dqrele(gq); | |
92f8ff73 CS |
1758 | if (O_pdqpp) |
1759 | *O_pdqpp = pq; | |
1760 | else if (pq) | |
1761 | xfs_qm_dqrele(pq); | |
014c2544 | 1762 | return 0; |
113a5683 CS |
1763 | |
1764 | error_rele: | |
92f8ff73 CS |
1765 | if (gq) |
1766 | xfs_qm_dqrele(gq); | |
113a5683 CS |
1767 | if (uq) |
1768 | xfs_qm_dqrele(uq); | |
1769 | return error; | |
1da177e4 LT |
1770 | } |
1771 | ||
1772 | /* | |
1773 | * Actually transfer ownership, and do dquot modifications. | |
1774 | * These were already reserved. | |
1775 | */ | |
1776 | xfs_dquot_t * | |
1777 | xfs_qm_vop_chown( | |
1778 | xfs_trans_t *tp, | |
1779 | xfs_inode_t *ip, | |
1780 | xfs_dquot_t **IO_olddq, | |
1781 | xfs_dquot_t *newdq) | |
1782 | { | |
1783 | xfs_dquot_t *prevdq; | |
06d10dd9 NS |
1784 | uint bfield = XFS_IS_REALTIME_INODE(ip) ? |
1785 | XFS_TRANS_DQ_RTBCOUNT : XFS_TRANS_DQ_BCOUNT; | |
1786 | ||
7d095257 | 1787 | |
579aa9ca | 1788 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
1789 | ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount)); |
1790 | ||
1791 | /* old dquot */ | |
1792 | prevdq = *IO_olddq; | |
1793 | ASSERT(prevdq); | |
1794 | ASSERT(prevdq != newdq); | |
1795 | ||
06d10dd9 NS |
1796 | xfs_trans_mod_dquot(tp, prevdq, bfield, -(ip->i_d.di_nblocks)); |
1797 | xfs_trans_mod_dquot(tp, prevdq, XFS_TRANS_DQ_ICOUNT, -1); | |
1da177e4 LT |
1798 | |
1799 | /* the sparkling new dquot */ | |
06d10dd9 NS |
1800 | xfs_trans_mod_dquot(tp, newdq, bfield, ip->i_d.di_nblocks); |
1801 | xfs_trans_mod_dquot(tp, newdq, XFS_TRANS_DQ_ICOUNT, 1); | |
1da177e4 LT |
1802 | |
1803 | /* | |
78e55892 CH |
1804 | * Take an extra reference, because the inode is going to keep |
1805 | * this dquot pointer even after the trans_commit. | |
1da177e4 | 1806 | */ |
78e55892 | 1807 | *IO_olddq = xfs_qm_dqhold(newdq); |
1da177e4 | 1808 | |
014c2544 | 1809 | return prevdq; |
1da177e4 LT |
1810 | } |
1811 | ||
1812 | /* | |
c8ad20ff | 1813 | * Quota reservations for setattr(AT_UID|AT_GID|AT_PROJID). |
1da177e4 LT |
1814 | */ |
1815 | int | |
1816 | xfs_qm_vop_chown_reserve( | |
113a5683 CS |
1817 | struct xfs_trans *tp, |
1818 | struct xfs_inode *ip, | |
1819 | struct xfs_dquot *udqp, | |
1820 | struct xfs_dquot *gdqp, | |
92f8ff73 | 1821 | struct xfs_dquot *pdqp, |
113a5683 | 1822 | uint flags) |
1da177e4 | 1823 | { |
113a5683 CS |
1824 | struct xfs_mount *mp = ip->i_mount; |
1825 | uint delblks, blkflags, prjflags = 0; | |
1826 | struct xfs_dquot *udq_unres = NULL; | |
1827 | struct xfs_dquot *gdq_unres = NULL; | |
92f8ff73 | 1828 | struct xfs_dquot *pdq_unres = NULL; |
113a5683 CS |
1829 | struct xfs_dquot *udq_delblks = NULL; |
1830 | struct xfs_dquot *gdq_delblks = NULL; | |
92f8ff73 | 1831 | struct xfs_dquot *pdq_delblks = NULL; |
113a5683 | 1832 | int error; |
7d095257 | 1833 | |
1da177e4 | 1834 | |
579aa9ca | 1835 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED)); |
1da177e4 LT |
1836 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1837 | ||
1838 | delblks = ip->i_delayed_blks; | |
06d10dd9 NS |
1839 | blkflags = XFS_IS_REALTIME_INODE(ip) ? |
1840 | XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS; | |
1da177e4 LT |
1841 | |
1842 | if (XFS_IS_UQUOTA_ON(mp) && udqp && | |
7aab1b28 | 1843 | ip->i_d.di_uid != be32_to_cpu(udqp->q_core.d_id)) { |
113a5683 | 1844 | udq_delblks = udqp; |
1da177e4 LT |
1845 | /* |
1846 | * If there are delayed allocation blocks, then we have to | |
1847 | * unreserve those from the old dquot, and add them to the | |
1848 | * new dquot. | |
1849 | */ | |
1850 | if (delblks) { | |
1851 | ASSERT(ip->i_udquot); | |
113a5683 | 1852 | udq_unres = ip->i_udquot; |
1da177e4 LT |
1853 | } |
1854 | } | |
92f8ff73 CS |
1855 | if (XFS_IS_GQUOTA_ON(ip->i_mount) && gdqp && |
1856 | ip->i_d.di_gid != be32_to_cpu(gdqp->q_core.d_id)) { | |
1857 | gdq_delblks = gdqp; | |
1858 | if (delblks) { | |
1859 | ASSERT(ip->i_gdquot); | |
1860 | gdq_unres = ip->i_gdquot; | |
1861 | } | |
1862 | } | |
1863 | ||
1864 | if (XFS_IS_PQUOTA_ON(ip->i_mount) && pdqp && | |
1865 | xfs_get_projid(ip) != be32_to_cpu(pdqp->q_core.d_id)) { | |
1866 | prjflags = XFS_QMOPT_ENOSPC; | |
1867 | pdq_delblks = pdqp; | |
1868 | if (delblks) { | |
1869 | ASSERT(ip->i_pdquot); | |
1870 | pdq_unres = ip->i_pdquot; | |
1da177e4 LT |
1871 | } |
1872 | } | |
1873 | ||
113a5683 | 1874 | error = xfs_trans_reserve_quota_bydquots(tp, ip->i_mount, |
92f8ff73 CS |
1875 | udq_delblks, gdq_delblks, pdq_delblks, |
1876 | ip->i_d.di_nblocks, 1, | |
113a5683 CS |
1877 | flags | blkflags | prjflags); |
1878 | if (error) | |
1879 | return error; | |
1da177e4 LT |
1880 | |
1881 | /* | |
1882 | * Do the delayed blks reservations/unreservations now. Since, these | |
1883 | * are done without the help of a transaction, if a reservation fails | |
1884 | * its previous reservations won't be automatically undone by trans | |
1885 | * code. So, we have to do it manually here. | |
1886 | */ | |
1887 | if (delblks) { | |
1888 | /* | |
1889 | * Do the reservations first. Unreservation can't fail. | |
1890 | */ | |
92f8ff73 CS |
1891 | ASSERT(udq_delblks || gdq_delblks || pdq_delblks); |
1892 | ASSERT(udq_unres || gdq_unres || pdq_unres); | |
113a5683 | 1893 | error = xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, |
92f8ff73 CS |
1894 | udq_delblks, gdq_delblks, pdq_delblks, |
1895 | (xfs_qcnt_t)delblks, 0, | |
113a5683 CS |
1896 | flags | blkflags | prjflags); |
1897 | if (error) | |
1898 | return error; | |
1da177e4 | 1899 | xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, |
92f8ff73 CS |
1900 | udq_unres, gdq_unres, pdq_unres, |
1901 | -((xfs_qcnt_t)delblks), 0, blkflags); | |
1da177e4 LT |
1902 | } |
1903 | ||
d99831ff | 1904 | return 0; |
1da177e4 LT |
1905 | } |
1906 | ||
1907 | int | |
1908 | xfs_qm_vop_rename_dqattach( | |
7d095257 | 1909 | struct xfs_inode **i_tab) |
1da177e4 | 1910 | { |
7d095257 CH |
1911 | struct xfs_mount *mp = i_tab[0]->i_mount; |
1912 | int i; | |
1da177e4 | 1913 | |
7d095257 | 1914 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
014c2544 | 1915 | return 0; |
1da177e4 | 1916 | |
7d095257 CH |
1917 | for (i = 0; (i < 4 && i_tab[i]); i++) { |
1918 | struct xfs_inode *ip = i_tab[i]; | |
1919 | int error; | |
1920 | ||
1da177e4 LT |
1921 | /* |
1922 | * Watch out for duplicate entries in the table. | |
1923 | */ | |
7d095257 CH |
1924 | if (i == 0 || ip != i_tab[i-1]) { |
1925 | if (XFS_NOT_DQATTACHED(mp, ip)) { | |
1da177e4 LT |
1926 | error = xfs_qm_dqattach(ip, 0); |
1927 | if (error) | |
014c2544 | 1928 | return error; |
1da177e4 LT |
1929 | } |
1930 | } | |
1931 | } | |
014c2544 | 1932 | return 0; |
1da177e4 LT |
1933 | } |
1934 | ||
1935 | void | |
7d095257 CH |
1936 | xfs_qm_vop_create_dqattach( |
1937 | struct xfs_trans *tp, | |
1938 | struct xfs_inode *ip, | |
1939 | struct xfs_dquot *udqp, | |
92f8ff73 CS |
1940 | struct xfs_dquot *gdqp, |
1941 | struct xfs_dquot *pdqp) | |
1da177e4 | 1942 | { |
7d095257 CH |
1943 | struct xfs_mount *mp = tp->t_mountp; |
1944 | ||
1945 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) | |
1da177e4 LT |
1946 | return; |
1947 | ||
579aa9ca | 1948 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
7d095257 | 1949 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1da177e4 | 1950 | |
37eb9706 | 1951 | if (udqp && XFS_IS_UQUOTA_ON(mp)) { |
1da177e4 | 1952 | ASSERT(ip->i_udquot == NULL); |
1149d96a | 1953 | ASSERT(ip->i_d.di_uid == be32_to_cpu(udqp->q_core.d_id)); |
78e55892 CH |
1954 | |
1955 | ip->i_udquot = xfs_qm_dqhold(udqp); | |
1da177e4 LT |
1956 | xfs_trans_mod_dquot(tp, udqp, XFS_TRANS_DQ_ICOUNT, 1); |
1957 | } | |
37eb9706 | 1958 | if (gdqp && XFS_IS_GQUOTA_ON(mp)) { |
1da177e4 | 1959 | ASSERT(ip->i_gdquot == NULL); |
92f8ff73 | 1960 | ASSERT(ip->i_d.di_gid == be32_to_cpu(gdqp->q_core.d_id)); |
78e55892 | 1961 | ip->i_gdquot = xfs_qm_dqhold(gdqp); |
1da177e4 LT |
1962 | xfs_trans_mod_dquot(tp, gdqp, XFS_TRANS_DQ_ICOUNT, 1); |
1963 | } | |
37eb9706 | 1964 | if (pdqp && XFS_IS_PQUOTA_ON(mp)) { |
92f8ff73 | 1965 | ASSERT(ip->i_pdquot == NULL); |
92f8ff73 CS |
1966 | ASSERT(xfs_get_projid(ip) == be32_to_cpu(pdqp->q_core.d_id)); |
1967 | ||
1968 | ip->i_pdquot = xfs_qm_dqhold(pdqp); | |
1969 | xfs_trans_mod_dquot(tp, pdqp, XFS_TRANS_DQ_ICOUNT, 1); | |
1970 | } | |
1da177e4 LT |
1971 | } |
1972 |