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Commit | Line | Data |
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1da177e4 | 1 | /* |
4ce3121f NS |
2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
4ce3121f NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
4ce3121f NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
1da177e4 | 13 | * |
4ce3121f NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
1da177e4 | 17 | */ |
1da177e4 LT |
18 | #include "xfs.h" |
19 | #include "xfs_fs.h" | |
a4fbe6ab | 20 | #include "xfs_shared.h" |
6ca1c906 | 21 | #include "xfs_format.h" |
239880ef | 22 | #include "xfs_log_format.h" |
239880ef | 23 | #include "xfs_trans_resv.h" |
a844f451 | 24 | #include "xfs_bit.h" |
1da177e4 | 25 | #include "xfs_sb.h" |
1da177e4 | 26 | #include "xfs_mount.h" |
1da177e4 | 27 | #include "xfs_inode.h" |
a844f451 NS |
28 | #include "xfs_ialloc.h" |
29 | #include "xfs_itable.h" | |
239880ef | 30 | #include "xfs_quota.h" |
1da177e4 | 31 | #include "xfs_error.h" |
a844f451 | 32 | #include "xfs_bmap.h" |
a4fbe6ab | 33 | #include "xfs_bmap_btree.h" |
8bfadd8d | 34 | #include "xfs_bmap_util.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" |
1da177e4 LT |
41 | |
42 | /* | |
43 | * The global quota manager. There is only one of these for the entire | |
44 | * system, _not_ one per file system. XQM keeps track of the overall | |
45 | * quota functionality, including maintaining the freelist and hash | |
46 | * tables of dquots. | |
47 | */ | |
1da177e4 | 48 | STATIC int xfs_qm_init_quotainos(xfs_mount_t *); |
ba0f32d4 | 49 | STATIC int xfs_qm_init_quotainfo(xfs_mount_t *); |
1da177e4 | 50 | |
cd56a39a DC |
51 | |
52 | STATIC void xfs_qm_dqfree_one(struct xfs_dquot *dqp); | |
b84a3a96 CH |
53 | /* |
54 | * We use the batch lookup interface to iterate over the dquots as it | |
55 | * currently is the only interface into the radix tree code that allows | |
56 | * fuzzy lookups instead of exact matches. Holding the lock over multiple | |
57 | * operations is fine as all callers are used either during mount/umount | |
58 | * or quotaoff. | |
59 | */ | |
60 | #define XFS_DQ_LOOKUP_BATCH 32 | |
61 | ||
62 | STATIC int | |
63 | xfs_qm_dquot_walk( | |
64 | struct xfs_mount *mp, | |
65 | int type, | |
43ff2122 CH |
66 | int (*execute)(struct xfs_dquot *dqp, void *data), |
67 | void *data) | |
b84a3a96 CH |
68 | { |
69 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
329e0875 | 70 | struct radix_tree_root *tree = xfs_dquot_tree(qi, type); |
b84a3a96 CH |
71 | uint32_t next_index; |
72 | int last_error = 0; | |
73 | int skipped; | |
74 | int nr_found; | |
75 | ||
76 | restart: | |
77 | skipped = 0; | |
78 | next_index = 0; | |
79 | nr_found = 0; | |
80 | ||
81 | while (1) { | |
82 | struct xfs_dquot *batch[XFS_DQ_LOOKUP_BATCH]; | |
83 | int error = 0; | |
84 | int i; | |
85 | ||
86 | mutex_lock(&qi->qi_tree_lock); | |
87 | nr_found = radix_tree_gang_lookup(tree, (void **)batch, | |
88 | next_index, XFS_DQ_LOOKUP_BATCH); | |
89 | if (!nr_found) { | |
90 | mutex_unlock(&qi->qi_tree_lock); | |
91 | break; | |
92 | } | |
93 | ||
94 | for (i = 0; i < nr_found; i++) { | |
95 | struct xfs_dquot *dqp = batch[i]; | |
96 | ||
97 | next_index = be32_to_cpu(dqp->q_core.d_id) + 1; | |
98 | ||
43ff2122 | 99 | error = execute(batch[i], data); |
2451337d | 100 | if (error == -EAGAIN) { |
b84a3a96 CH |
101 | skipped++; |
102 | continue; | |
103 | } | |
2451337d | 104 | if (error && last_error != -EFSCORRUPTED) |
b84a3a96 CH |
105 | last_error = error; |
106 | } | |
107 | ||
108 | mutex_unlock(&qi->qi_tree_lock); | |
109 | ||
110 | /* bail out if the filesystem is corrupted. */ | |
2451337d | 111 | if (last_error == -EFSCORRUPTED) { |
b84a3a96 CH |
112 | skipped = 0; |
113 | break; | |
114 | } | |
cfaf2d03 BF |
115 | /* we're done if id overflows back to zero */ |
116 | if (!next_index) | |
117 | break; | |
b84a3a96 CH |
118 | } |
119 | ||
120 | if (skipped) { | |
121 | delay(1); | |
122 | goto restart; | |
123 | } | |
124 | ||
125 | return last_error; | |
126 | } | |
127 | ||
128 | ||
129 | /* | |
130 | * Purge a dquot from all tracking data structures and free it. | |
131 | */ | |
132 | STATIC int | |
133 | xfs_qm_dqpurge( | |
43ff2122 CH |
134 | struct xfs_dquot *dqp, |
135 | void *data) | |
b84a3a96 CH |
136 | { |
137 | struct xfs_mount *mp = dqp->q_mount; | |
138 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
b84a3a96 CH |
139 | |
140 | xfs_dqlock(dqp); | |
141 | if ((dqp->dq_flags & XFS_DQ_FREEING) || dqp->q_nrefs != 0) { | |
142 | xfs_dqunlock(dqp); | |
2451337d | 143 | return -EAGAIN; |
b84a3a96 CH |
144 | } |
145 | ||
b84a3a96 CH |
146 | dqp->dq_flags |= XFS_DQ_FREEING; |
147 | ||
43ff2122 | 148 | xfs_dqflock(dqp); |
b84a3a96 CH |
149 | |
150 | /* | |
151 | * If we are turning this type of quotas off, we don't care | |
152 | * about the dirty metadata sitting in this dquot. OTOH, if | |
153 | * we're unmounting, we do care, so we flush it and wait. | |
154 | */ | |
155 | if (XFS_DQ_IS_DIRTY(dqp)) { | |
fe7257fd CH |
156 | struct xfs_buf *bp = NULL; |
157 | int error; | |
b84a3a96 CH |
158 | |
159 | /* | |
160 | * We don't care about getting disk errors here. We need | |
161 | * to purge this dquot anyway, so we go ahead regardless. | |
162 | */ | |
fe7257fd CH |
163 | error = xfs_qm_dqflush(dqp, &bp); |
164 | if (error) { | |
b84a3a96 CH |
165 | xfs_warn(mp, "%s: dquot %p flush failed", |
166 | __func__, dqp); | |
fe7257fd CH |
167 | } else { |
168 | error = xfs_bwrite(bp); | |
169 | xfs_buf_relse(bp); | |
170 | } | |
b84a3a96 CH |
171 | xfs_dqflock(dqp); |
172 | } | |
173 | ||
174 | ASSERT(atomic_read(&dqp->q_pincount) == 0); | |
175 | ASSERT(XFS_FORCED_SHUTDOWN(mp) || | |
176 | !(dqp->q_logitem.qli_item.li_flags & XFS_LI_IN_AIL)); | |
177 | ||
178 | xfs_dqfunlock(dqp); | |
179 | xfs_dqunlock(dqp); | |
180 | ||
329e0875 | 181 | radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags), |
b84a3a96 CH |
182 | be32_to_cpu(dqp->q_core.d_id)); |
183 | qi->qi_dquots--; | |
184 | ||
185 | /* | |
186 | * We move dquots to the freelist as soon as their reference count | |
187 | * hits zero, so it really should be on the freelist here. | |
188 | */ | |
b84a3a96 | 189 | ASSERT(!list_empty(&dqp->q_lru)); |
cd56a39a | 190 | list_lru_del(&qi->qi_lru, &dqp->q_lru); |
ff6d6af2 | 191 | XFS_STATS_DEC(mp, xs_qm_dquot_unused); |
b84a3a96 CH |
192 | |
193 | xfs_qm_dqdestroy(dqp); | |
df8052e7 JL |
194 | return 0; |
195 | } | |
196 | ||
b84a3a96 CH |
197 | /* |
198 | * Purge the dquot cache. | |
199 | */ | |
200 | void | |
201 | xfs_qm_dqpurge_all( | |
202 | struct xfs_mount *mp, | |
203 | uint flags) | |
204 | { | |
3c353375 DC |
205 | if (flags & XFS_QMOPT_UQUOTA) |
206 | xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_dqpurge, NULL); | |
b84a3a96 | 207 | if (flags & XFS_QMOPT_GQUOTA) |
43ff2122 | 208 | xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_dqpurge, NULL); |
b84a3a96 | 209 | if (flags & XFS_QMOPT_PQUOTA) |
43ff2122 | 210 | xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_dqpurge, NULL); |
b84a3a96 CH |
211 | } |
212 | ||
1da177e4 LT |
213 | /* |
214 | * Just destroy the quotainfo structure. | |
215 | */ | |
216 | void | |
7d095257 CH |
217 | xfs_qm_unmount( |
218 | struct xfs_mount *mp) | |
1da177e4 | 219 | { |
7d095257 | 220 | if (mp->m_quotainfo) { |
8112e9dc | 221 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
1da177e4 | 222 | xfs_qm_destroy_quotainfo(mp); |
7d095257 | 223 | } |
1da177e4 LT |
224 | } |
225 | ||
1da177e4 LT |
226 | /* |
227 | * Called from the vfsops layer. | |
228 | */ | |
e57481dc | 229 | void |
1da177e4 LT |
230 | xfs_qm_unmount_quotas( |
231 | xfs_mount_t *mp) | |
232 | { | |
1da177e4 LT |
233 | /* |
234 | * Release the dquots that root inode, et al might be holding, | |
235 | * before we flush quotas and blow away the quotainfo structure. | |
236 | */ | |
237 | ASSERT(mp->m_rootip); | |
238 | xfs_qm_dqdetach(mp->m_rootip); | |
239 | if (mp->m_rbmip) | |
240 | xfs_qm_dqdetach(mp->m_rbmip); | |
241 | if (mp->m_rsumip) | |
242 | xfs_qm_dqdetach(mp->m_rsumip); | |
243 | ||
244 | /* | |
e57481dc | 245 | * Release the quota inodes. |
1da177e4 | 246 | */ |
1da177e4 | 247 | if (mp->m_quotainfo) { |
e57481dc CH |
248 | if (mp->m_quotainfo->qi_uquotaip) { |
249 | IRELE(mp->m_quotainfo->qi_uquotaip); | |
250 | mp->m_quotainfo->qi_uquotaip = NULL; | |
1da177e4 | 251 | } |
e57481dc CH |
252 | if (mp->m_quotainfo->qi_gquotaip) { |
253 | IRELE(mp->m_quotainfo->qi_gquotaip); | |
254 | mp->m_quotainfo->qi_gquotaip = NULL; | |
1da177e4 | 255 | } |
92f8ff73 CS |
256 | if (mp->m_quotainfo->qi_pquotaip) { |
257 | IRELE(mp->m_quotainfo->qi_pquotaip); | |
258 | mp->m_quotainfo->qi_pquotaip = NULL; | |
259 | } | |
1da177e4 | 260 | } |
1da177e4 LT |
261 | } |
262 | ||
1da177e4 LT |
263 | STATIC int |
264 | xfs_qm_dqattach_one( | |
265 | xfs_inode_t *ip, | |
266 | xfs_dqid_t id, | |
267 | uint type, | |
268 | uint doalloc, | |
1da177e4 LT |
269 | xfs_dquot_t **IO_idqpp) |
270 | { | |
271 | xfs_dquot_t *dqp; | |
272 | int error; | |
273 | ||
579aa9ca | 274 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 275 | error = 0; |
8e9b6e7f | 276 | |
1da177e4 | 277 | /* |
3c353375 DC |
278 | * See if we already have it in the inode itself. IO_idqpp is &i_udquot |
279 | * or &i_gdquot. This made the code look weird, but made the logic a lot | |
280 | * simpler. | |
1da177e4 | 281 | */ |
8e9b6e7f CH |
282 | dqp = *IO_idqpp; |
283 | if (dqp) { | |
0b1b213f | 284 | trace_xfs_dqattach_found(dqp); |
8e9b6e7f | 285 | return 0; |
1da177e4 LT |
286 | } |
287 | ||
288 | /* | |
3c353375 DC |
289 | * Find the dquot from somewhere. This bumps the reference count of |
290 | * dquot and returns it locked. This can return ENOENT if dquot didn't | |
291 | * exist on disk and we didn't ask it to allocate; ESRCH if quotas got | |
292 | * turned off suddenly. | |
1da177e4 | 293 | */ |
db3e74b5 MH |
294 | error = xfs_qm_dqget(ip->i_mount, ip, id, type, |
295 | doalloc | XFS_QMOPT_DOWARN, &dqp); | |
8e9b6e7f CH |
296 | if (error) |
297 | return error; | |
1da177e4 | 298 | |
0b1b213f | 299 | trace_xfs_dqattach_get(dqp); |
8e9b6e7f | 300 | |
1da177e4 LT |
301 | /* |
302 | * dqget may have dropped and re-acquired the ilock, but it guarantees | |
303 | * that the dquot returned is the one that should go in the inode. | |
304 | */ | |
305 | *IO_idqpp = dqp; | |
8e9b6e7f CH |
306 | xfs_dqunlock(dqp); |
307 | return 0; | |
1da177e4 LT |
308 | } |
309 | ||
b4d05e30 CH |
310 | static bool |
311 | xfs_qm_need_dqattach( | |
312 | struct xfs_inode *ip) | |
313 | { | |
314 | struct xfs_mount *mp = ip->i_mount; | |
315 | ||
316 | if (!XFS_IS_QUOTA_RUNNING(mp)) | |
317 | return false; | |
318 | if (!XFS_IS_QUOTA_ON(mp)) | |
319 | return false; | |
320 | if (!XFS_NOT_DQATTACHED(mp, ip)) | |
321 | return false; | |
9cad19d2 | 322 | if (xfs_is_quota_inode(&mp->m_sb, ip->i_ino)) |
b4d05e30 CH |
323 | return false; |
324 | return true; | |
325 | } | |
1da177e4 LT |
326 | |
327 | /* | |
c8ad20ff NS |
328 | * Given a locked inode, attach dquot(s) to it, taking U/G/P-QUOTAON |
329 | * into account. | |
1da177e4 | 330 | * If XFS_QMOPT_DQALLOC, the dquot(s) will be allocated if needed. |
1da177e4 LT |
331 | * Inode may get unlocked and relocked in here, and the caller must deal with |
332 | * the consequences. | |
333 | */ | |
334 | int | |
7d095257 | 335 | xfs_qm_dqattach_locked( |
1da177e4 LT |
336 | xfs_inode_t *ip, |
337 | uint flags) | |
338 | { | |
339 | xfs_mount_t *mp = ip->i_mount; | |
1da177e4 LT |
340 | int error = 0; |
341 | ||
b4d05e30 | 342 | if (!xfs_qm_need_dqattach(ip)) |
014c2544 | 343 | return 0; |
1da177e4 | 344 | |
7d095257 | 345 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 346 | |
3c353375 | 347 | if (XFS_IS_UQUOTA_ON(mp) && !ip->i_udquot) { |
1da177e4 LT |
348 | error = xfs_qm_dqattach_one(ip, ip->i_d.di_uid, XFS_DQ_USER, |
349 | flags & XFS_QMOPT_DQALLOC, | |
3c353375 | 350 | &ip->i_udquot); |
1da177e4 LT |
351 | if (error) |
352 | goto done; | |
3c353375 | 353 | ASSERT(ip->i_udquot); |
1da177e4 | 354 | } |
579aa9ca | 355 | |
3c353375 | 356 | if (XFS_IS_GQUOTA_ON(mp) && !ip->i_gdquot) { |
92f8ff73 | 357 | error = xfs_qm_dqattach_one(ip, ip->i_d.di_gid, XFS_DQ_GROUP, |
1da177e4 | 358 | flags & XFS_QMOPT_DQALLOC, |
3c353375 | 359 | &ip->i_gdquot); |
1da177e4 LT |
360 | if (error) |
361 | goto done; | |
3c353375 | 362 | ASSERT(ip->i_gdquot); |
1da177e4 LT |
363 | } |
364 | ||
3c353375 | 365 | if (XFS_IS_PQUOTA_ON(mp) && !ip->i_pdquot) { |
92f8ff73 CS |
366 | error = xfs_qm_dqattach_one(ip, xfs_get_projid(ip), XFS_DQ_PROJ, |
367 | flags & XFS_QMOPT_DQALLOC, | |
3c353375 | 368 | &ip->i_pdquot); |
92f8ff73 CS |
369 | if (error) |
370 | goto done; | |
3c353375 | 371 | ASSERT(ip->i_pdquot); |
92f8ff73 CS |
372 | } |
373 | ||
3c353375 | 374 | done: |
1da177e4 | 375 | /* |
3c353375 DC |
376 | * Don't worry about the dquots that we may have attached before any |
377 | * error - they'll get detached later if it has not already been done. | |
1da177e4 | 378 | */ |
7d095257 | 379 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
7d095257 CH |
380 | return error; |
381 | } | |
1da177e4 | 382 | |
7d095257 CH |
383 | int |
384 | xfs_qm_dqattach( | |
385 | struct xfs_inode *ip, | |
386 | uint flags) | |
387 | { | |
388 | int error; | |
389 | ||
b4d05e30 CH |
390 | if (!xfs_qm_need_dqattach(ip)) |
391 | return 0; | |
392 | ||
7d095257 CH |
393 | xfs_ilock(ip, XFS_ILOCK_EXCL); |
394 | error = xfs_qm_dqattach_locked(ip, flags); | |
395 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1da177e4 | 396 | |
014c2544 | 397 | return error; |
1da177e4 LT |
398 | } |
399 | ||
400 | /* | |
401 | * Release dquots (and their references) if any. | |
402 | * The inode should be locked EXCL except when this's called by | |
403 | * xfs_ireclaim. | |
404 | */ | |
405 | void | |
406 | xfs_qm_dqdetach( | |
407 | xfs_inode_t *ip) | |
408 | { | |
92f8ff73 | 409 | if (!(ip->i_udquot || ip->i_gdquot || ip->i_pdquot)) |
1da177e4 LT |
410 | return; |
411 | ||
0b1b213f CH |
412 | trace_xfs_dquot_dqdetach(ip); |
413 | ||
9cad19d2 | 414 | ASSERT(!xfs_is_quota_inode(&ip->i_mount->m_sb, ip->i_ino)); |
1da177e4 LT |
415 | if (ip->i_udquot) { |
416 | xfs_qm_dqrele(ip->i_udquot); | |
417 | ip->i_udquot = NULL; | |
418 | } | |
419 | if (ip->i_gdquot) { | |
420 | xfs_qm_dqrele(ip->i_gdquot); | |
421 | ip->i_gdquot = NULL; | |
422 | } | |
92f8ff73 CS |
423 | if (ip->i_pdquot) { |
424 | xfs_qm_dqrele(ip->i_pdquot); | |
425 | ip->i_pdquot = NULL; | |
426 | } | |
1da177e4 LT |
427 | } |
428 | ||
cd56a39a DC |
429 | struct xfs_qm_isolate { |
430 | struct list_head buffers; | |
431 | struct list_head dispose; | |
432 | }; | |
433 | ||
434 | static enum lru_status | |
435 | xfs_qm_dquot_isolate( | |
436 | struct list_head *item, | |
3f97b163 | 437 | struct list_lru_one *lru, |
cd56a39a DC |
438 | spinlock_t *lru_lock, |
439 | void *arg) | |
bf1ed383 | 440 | __releases(lru_lock) __acquires(lru_lock) |
cd56a39a DC |
441 | { |
442 | struct xfs_dquot *dqp = container_of(item, | |
443 | struct xfs_dquot, q_lru); | |
444 | struct xfs_qm_isolate *isol = arg; | |
445 | ||
446 | if (!xfs_dqlock_nowait(dqp)) | |
447 | goto out_miss_busy; | |
448 | ||
449 | /* | |
450 | * This dquot has acquired a reference in the meantime remove it from | |
451 | * the freelist and try again. | |
452 | */ | |
453 | if (dqp->q_nrefs) { | |
454 | xfs_dqunlock(dqp); | |
ff6d6af2 | 455 | XFS_STATS_INC(dqp->q_mount, xs_qm_dqwants); |
cd56a39a DC |
456 | |
457 | trace_xfs_dqreclaim_want(dqp); | |
3f97b163 | 458 | list_lru_isolate(lru, &dqp->q_lru); |
ff6d6af2 | 459 | XFS_STATS_DEC(dqp->q_mount, xs_qm_dquot_unused); |
35163417 | 460 | return LRU_REMOVED; |
cd56a39a DC |
461 | } |
462 | ||
463 | /* | |
464 | * If the dquot is dirty, flush it. If it's already being flushed, just | |
465 | * skip it so there is time for the IO to complete before we try to | |
466 | * reclaim it again on the next LRU pass. | |
467 | */ | |
468 | if (!xfs_dqflock_nowait(dqp)) { | |
469 | xfs_dqunlock(dqp); | |
470 | goto out_miss_busy; | |
471 | } | |
472 | ||
473 | if (XFS_DQ_IS_DIRTY(dqp)) { | |
474 | struct xfs_buf *bp = NULL; | |
475 | int error; | |
476 | ||
477 | trace_xfs_dqreclaim_dirty(dqp); | |
478 | ||
479 | /* we have to drop the LRU lock to flush the dquot */ | |
480 | spin_unlock(lru_lock); | |
481 | ||
482 | error = xfs_qm_dqflush(dqp, &bp); | |
483 | if (error) { | |
484 | xfs_warn(dqp->q_mount, "%s: dquot %p flush failed", | |
485 | __func__, dqp); | |
486 | goto out_unlock_dirty; | |
487 | } | |
488 | ||
489 | xfs_buf_delwri_queue(bp, &isol->buffers); | |
490 | xfs_buf_relse(bp); | |
491 | goto out_unlock_dirty; | |
492 | } | |
493 | xfs_dqfunlock(dqp); | |
494 | ||
495 | /* | |
496 | * Prevent lookups now that we are past the point of no return. | |
497 | */ | |
498 | dqp->dq_flags |= XFS_DQ_FREEING; | |
499 | xfs_dqunlock(dqp); | |
500 | ||
501 | ASSERT(dqp->q_nrefs == 0); | |
3f97b163 | 502 | list_lru_isolate_move(lru, &dqp->q_lru, &isol->dispose); |
ff6d6af2 | 503 | XFS_STATS_DEC(dqp->q_mount, xs_qm_dquot_unused); |
cd56a39a | 504 | trace_xfs_dqreclaim_done(dqp); |
ff6d6af2 | 505 | XFS_STATS_INC(dqp->q_mount, xs_qm_dqreclaims); |
35163417 | 506 | return LRU_REMOVED; |
cd56a39a DC |
507 | |
508 | out_miss_busy: | |
509 | trace_xfs_dqreclaim_busy(dqp); | |
ff6d6af2 | 510 | XFS_STATS_INC(dqp->q_mount, xs_qm_dqreclaim_misses); |
35163417 | 511 | return LRU_SKIP; |
cd56a39a DC |
512 | |
513 | out_unlock_dirty: | |
514 | trace_xfs_dqreclaim_busy(dqp); | |
ff6d6af2 | 515 | XFS_STATS_INC(dqp->q_mount, xs_qm_dqreclaim_misses); |
35163417 DC |
516 | xfs_dqunlock(dqp); |
517 | spin_lock(lru_lock); | |
518 | return LRU_RETRY; | |
cd56a39a DC |
519 | } |
520 | ||
2f5b56f8 | 521 | static unsigned long |
cd56a39a DC |
522 | xfs_qm_shrink_scan( |
523 | struct shrinker *shrink, | |
524 | struct shrink_control *sc) | |
525 | { | |
526 | struct xfs_quotainfo *qi = container_of(shrink, | |
527 | struct xfs_quotainfo, qi_shrinker); | |
528 | struct xfs_qm_isolate isol; | |
2f5b56f8 | 529 | unsigned long freed; |
cd56a39a | 530 | int error; |
cd56a39a | 531 | |
d0164adc | 532 | if ((sc->gfp_mask & (__GFP_FS|__GFP_DIRECT_RECLAIM)) != (__GFP_FS|__GFP_DIRECT_RECLAIM)) |
cd56a39a DC |
533 | return 0; |
534 | ||
535 | INIT_LIST_HEAD(&isol.buffers); | |
536 | INIT_LIST_HEAD(&isol.dispose); | |
537 | ||
503c358c VD |
538 | freed = list_lru_shrink_walk(&qi->qi_lru, sc, |
539 | xfs_qm_dquot_isolate, &isol); | |
cd56a39a DC |
540 | |
541 | error = xfs_buf_delwri_submit(&isol.buffers); | |
542 | if (error) | |
543 | xfs_warn(NULL, "%s: dquot reclaim failed", __func__); | |
544 | ||
545 | while (!list_empty(&isol.dispose)) { | |
546 | struct xfs_dquot *dqp; | |
547 | ||
548 | dqp = list_first_entry(&isol.dispose, struct xfs_dquot, q_lru); | |
549 | list_del_init(&dqp->q_lru); | |
550 | xfs_qm_dqfree_one(dqp); | |
551 | } | |
552 | ||
553 | return freed; | |
554 | } | |
555 | ||
2f5b56f8 | 556 | static unsigned long |
cd56a39a DC |
557 | xfs_qm_shrink_count( |
558 | struct shrinker *shrink, | |
559 | struct shrink_control *sc) | |
560 | { | |
561 | struct xfs_quotainfo *qi = container_of(shrink, | |
562 | struct xfs_quotainfo, qi_shrinker); | |
563 | ||
503c358c | 564 | return list_lru_shrink_count(&qi->qi_lru, sc); |
cd56a39a DC |
565 | } |
566 | ||
be607946 CM |
567 | STATIC void |
568 | xfs_qm_set_defquota( | |
569 | xfs_mount_t *mp, | |
570 | uint type, | |
571 | xfs_quotainfo_t *qinf) | |
572 | { | |
573 | xfs_dquot_t *dqp; | |
574 | struct xfs_def_quota *defq; | |
575 | int error; | |
576 | ||
577 | error = xfs_qm_dqread(mp, 0, type, XFS_QMOPT_DOWARN, &dqp); | |
578 | ||
579 | if (!error) { | |
580 | xfs_disk_dquot_t *ddqp = &dqp->q_core; | |
581 | ||
582 | defq = xfs_get_defquota(dqp, qinf); | |
583 | ||
584 | /* | |
585 | * Timers and warnings have been already set, let's just set the | |
586 | * default limits for this quota type | |
587 | */ | |
588 | defq->bhardlimit = be64_to_cpu(ddqp->d_blk_hardlimit); | |
589 | defq->bsoftlimit = be64_to_cpu(ddqp->d_blk_softlimit); | |
590 | defq->ihardlimit = be64_to_cpu(ddqp->d_ino_hardlimit); | |
591 | defq->isoftlimit = be64_to_cpu(ddqp->d_ino_softlimit); | |
592 | defq->rtbhardlimit = be64_to_cpu(ddqp->d_rtb_hardlimit); | |
593 | defq->rtbsoftlimit = be64_to_cpu(ddqp->d_rtb_softlimit); | |
594 | xfs_qm_dqdestroy(dqp); | |
595 | } | |
596 | } | |
597 | ||
1da177e4 LT |
598 | /* |
599 | * This initializes all the quota information that's kept in the | |
600 | * mount structure | |
601 | */ | |
ba0f32d4 | 602 | STATIC int |
1da177e4 LT |
603 | xfs_qm_init_quotainfo( |
604 | xfs_mount_t *mp) | |
605 | { | |
606 | xfs_quotainfo_t *qinf; | |
607 | int error; | |
608 | xfs_dquot_t *dqp; | |
609 | ||
610 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
611 | ||
1da177e4 LT |
612 | qinf = mp->m_quotainfo = kmem_zalloc(sizeof(xfs_quotainfo_t), KM_SLEEP); |
613 | ||
2451337d | 614 | error = list_lru_init(&qinf->qi_lru); |
ee4eec47 DC |
615 | if (error) |
616 | goto out_free_qinf; | |
5ca302c8 | 617 | |
1da177e4 LT |
618 | /* |
619 | * See if quotainodes are setup, and if not, allocate them, | |
620 | * and change the superblock accordingly. | |
621 | */ | |
ee4eec47 DC |
622 | error = xfs_qm_init_quotainos(mp); |
623 | if (error) | |
624 | goto out_free_lru; | |
1da177e4 | 625 | |
9f920f11 CH |
626 | INIT_RADIX_TREE(&qinf->qi_uquota_tree, GFP_NOFS); |
627 | INIT_RADIX_TREE(&qinf->qi_gquota_tree, GFP_NOFS); | |
92f8ff73 | 628 | INIT_RADIX_TREE(&qinf->qi_pquota_tree, GFP_NOFS); |
9f920f11 CH |
629 | mutex_init(&qinf->qi_tree_lock); |
630 | ||
1da177e4 | 631 | /* mutex used to serialize quotaoffs */ |
794ee1ba | 632 | mutex_init(&qinf->qi_quotaofflock); |
1da177e4 LT |
633 | |
634 | /* Precalc some constants */ | |
635 | qinf->qi_dqchunklen = XFS_FSB_TO_BB(mp, XFS_DQUOT_CLUSTER_SIZE_FSB); | |
6ea94bb5 | 636 | qinf->qi_dqperchunk = xfs_calc_dquots_per_chunk(qinf->qi_dqchunklen); |
1da177e4 LT |
637 | |
638 | mp->m_qflags |= (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_CHKD); | |
639 | ||
640 | /* | |
641 | * We try to get the limits from the superuser's limits fields. | |
642 | * This is quite hacky, but it is standard quota practice. | |
7ae44407 | 643 | * |
7ae44407 CH |
644 | * Since we may not have done a quotacheck by this point, just read |
645 | * the dquot without attaching it to any hashtables or lists. | |
be607946 CM |
646 | * |
647 | * Timers and warnings are globally set by the first timer found in | |
648 | * user/group/proj quota types, otherwise a default value is used. | |
649 | * This should be split into different fields per quota type. | |
1da177e4 | 650 | */ |
7ae44407 CH |
651 | error = xfs_qm_dqread(mp, 0, |
652 | XFS_IS_UQUOTA_RUNNING(mp) ? XFS_DQ_USER : | |
653 | (XFS_IS_GQUOTA_RUNNING(mp) ? XFS_DQ_GROUP : | |
654 | XFS_DQ_PROJ), | |
655 | XFS_QMOPT_DOWARN, &dqp); | |
be607946 | 656 | |
7ae44407 | 657 | if (!error) { |
1da177e4 LT |
658 | xfs_disk_dquot_t *ddqp = &dqp->q_core; |
659 | ||
660 | /* | |
661 | * The warnings and timers set the grace period given to | |
662 | * a user or group before he or she can not perform any | |
663 | * more writing. If it is zero, a default is used. | |
664 | */ | |
1149d96a CH |
665 | qinf->qi_btimelimit = ddqp->d_btimer ? |
666 | be32_to_cpu(ddqp->d_btimer) : XFS_QM_BTIMELIMIT; | |
667 | qinf->qi_itimelimit = ddqp->d_itimer ? | |
668 | be32_to_cpu(ddqp->d_itimer) : XFS_QM_ITIMELIMIT; | |
669 | qinf->qi_rtbtimelimit = ddqp->d_rtbtimer ? | |
670 | be32_to_cpu(ddqp->d_rtbtimer) : XFS_QM_RTBTIMELIMIT; | |
671 | qinf->qi_bwarnlimit = ddqp->d_bwarns ? | |
672 | be16_to_cpu(ddqp->d_bwarns) : XFS_QM_BWARNLIMIT; | |
673 | qinf->qi_iwarnlimit = ddqp->d_iwarns ? | |
674 | be16_to_cpu(ddqp->d_iwarns) : XFS_QM_IWARNLIMIT; | |
675 | qinf->qi_rtbwarnlimit = ddqp->d_rtbwarns ? | |
676 | be16_to_cpu(ddqp->d_rtbwarns) : XFS_QM_RTBWARNLIMIT; | |
1da177e4 LT |
677 | xfs_qm_dqdestroy(dqp); |
678 | } else { | |
679 | qinf->qi_btimelimit = XFS_QM_BTIMELIMIT; | |
680 | qinf->qi_itimelimit = XFS_QM_ITIMELIMIT; | |
681 | qinf->qi_rtbtimelimit = XFS_QM_RTBTIMELIMIT; | |
682 | qinf->qi_bwarnlimit = XFS_QM_BWARNLIMIT; | |
683 | qinf->qi_iwarnlimit = XFS_QM_IWARNLIMIT; | |
06d10dd9 | 684 | qinf->qi_rtbwarnlimit = XFS_QM_RTBWARNLIMIT; |
1da177e4 LT |
685 | } |
686 | ||
be607946 CM |
687 | if (XFS_IS_UQUOTA_RUNNING(mp)) |
688 | xfs_qm_set_defquota(mp, XFS_DQ_USER, qinf); | |
689 | if (XFS_IS_GQUOTA_RUNNING(mp)) | |
690 | xfs_qm_set_defquota(mp, XFS_DQ_GROUP, qinf); | |
691 | if (XFS_IS_PQUOTA_RUNNING(mp)) | |
692 | xfs_qm_set_defquota(mp, XFS_DQ_PROJ, qinf); | |
693 | ||
cd56a39a DC |
694 | qinf->qi_shrinker.count_objects = xfs_qm_shrink_count; |
695 | qinf->qi_shrinker.scan_objects = xfs_qm_shrink_scan; | |
f8739c3c | 696 | qinf->qi_shrinker.seeks = DEFAULT_SEEKS; |
cd56a39a | 697 | qinf->qi_shrinker.flags = SHRINKER_NUMA_AWARE; |
f8739c3c | 698 | register_shrinker(&qinf->qi_shrinker); |
014c2544 | 699 | return 0; |
ee4eec47 DC |
700 | |
701 | out_free_lru: | |
702 | list_lru_destroy(&qinf->qi_lru); | |
703 | out_free_qinf: | |
704 | kmem_free(qinf); | |
705 | mp->m_quotainfo = NULL; | |
706 | return error; | |
1da177e4 LT |
707 | } |
708 | ||
709 | ||
710 | /* | |
711 | * Gets called when unmounting a filesystem or when all quotas get | |
712 | * turned off. | |
713 | * This purges the quota inodes, destroys locks and frees itself. | |
714 | */ | |
715 | void | |
716 | xfs_qm_destroy_quotainfo( | |
717 | xfs_mount_t *mp) | |
718 | { | |
719 | xfs_quotainfo_t *qi; | |
720 | ||
721 | qi = mp->m_quotainfo; | |
722 | ASSERT(qi != NULL); | |
1da177e4 | 723 | |
f8739c3c | 724 | unregister_shrinker(&qi->qi_shrinker); |
f5e1dd34 | 725 | list_lru_destroy(&qi->qi_lru); |
f8739c3c | 726 | |
1da177e4 | 727 | if (qi->qi_uquotaip) { |
26cc0021 | 728 | IRELE(qi->qi_uquotaip); |
1da177e4 LT |
729 | qi->qi_uquotaip = NULL; /* paranoia */ |
730 | } | |
731 | if (qi->qi_gquotaip) { | |
26cc0021 | 732 | IRELE(qi->qi_gquotaip); |
1da177e4 LT |
733 | qi->qi_gquotaip = NULL; |
734 | } | |
92f8ff73 CS |
735 | if (qi->qi_pquotaip) { |
736 | IRELE(qi->qi_pquotaip); | |
737 | qi->qi_pquotaip = NULL; | |
738 | } | |
21968815 | 739 | mutex_destroy(&qi->qi_tree_lock); |
1da177e4 | 740 | mutex_destroy(&qi->qi_quotaofflock); |
f0e2d93c | 741 | kmem_free(qi); |
1da177e4 LT |
742 | mp->m_quotainfo = NULL; |
743 | } | |
744 | ||
1da177e4 LT |
745 | /* |
746 | * Create an inode and return with a reference already taken, but unlocked | |
747 | * This is how we create quota inodes | |
748 | */ | |
749 | STATIC int | |
750 | xfs_qm_qino_alloc( | |
751 | xfs_mount_t *mp, | |
752 | xfs_inode_t **ip, | |
1da177e4 LT |
753 | uint flags) |
754 | { | |
755 | xfs_trans_t *tp; | |
756 | int error; | |
1da177e4 | 757 | int committed; |
58c90473 | 758 | bool need_alloc = true; |
1da177e4 | 759 | |
d892d586 CS |
760 | *ip = NULL; |
761 | /* | |
762 | * With superblock that doesn't have separate pquotino, we | |
763 | * share an inode between gquota and pquota. If the on-disk | |
764 | * superblock has GQUOTA and the filesystem is now mounted | |
765 | * with PQUOTA, just use sb_gquotino for sb_pquotino and | |
766 | * vice-versa. | |
767 | */ | |
768 | if (!xfs_sb_version_has_pquotino(&mp->m_sb) && | |
769 | (flags & (XFS_QMOPT_PQUOTA|XFS_QMOPT_GQUOTA))) { | |
770 | xfs_ino_t ino = NULLFSINO; | |
771 | ||
772 | if ((flags & XFS_QMOPT_PQUOTA) && | |
773 | (mp->m_sb.sb_gquotino != NULLFSINO)) { | |
774 | ino = mp->m_sb.sb_gquotino; | |
775 | ASSERT(mp->m_sb.sb_pquotino == NULLFSINO); | |
776 | } else if ((flags & XFS_QMOPT_GQUOTA) && | |
777 | (mp->m_sb.sb_pquotino != NULLFSINO)) { | |
778 | ino = mp->m_sb.sb_pquotino; | |
779 | ASSERT(mp->m_sb.sb_gquotino == NULLFSINO); | |
780 | } | |
781 | if (ino != NULLFSINO) { | |
782 | error = xfs_iget(mp, NULL, ino, 0, 0, ip); | |
783 | if (error) | |
784 | return error; | |
785 | mp->m_sb.sb_gquotino = NULLFSINO; | |
786 | mp->m_sb.sb_pquotino = NULLFSINO; | |
58c90473 | 787 | need_alloc = false; |
d892d586 CS |
788 | } |
789 | } | |
790 | ||
253f4911 CH |
791 | error = xfs_trans_alloc(mp, &M_RES(mp)->tr_create, |
792 | XFS_QM_QINOCREATE_SPACE_RES(mp), 0, 0, &tp); | |
793 | if (error) | |
014c2544 | 794 | return error; |
1da177e4 | 795 | |
58c90473 | 796 | if (need_alloc) { |
f59cf5c2 CH |
797 | error = xfs_dir_ialloc(&tp, NULL, S_IFREG, 1, 0, 0, ip, |
798 | &committed); | |
d892d586 | 799 | if (error) { |
4906e215 | 800 | xfs_trans_cancel(tp); |
d892d586 CS |
801 | return error; |
802 | } | |
1da177e4 LT |
803 | } |
804 | ||
1da177e4 LT |
805 | /* |
806 | * Make the changes in the superblock, and log those too. | |
807 | * sbfields arg may contain fields other than *QUOTINO; | |
808 | * VERSIONNUM for example. | |
809 | */ | |
3685c2a1 | 810 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 811 | if (flags & XFS_QMOPT_SBVERSION) { |
62118709 | 812 | ASSERT(!xfs_sb_version_hasquota(&mp->m_sb)); |
1da177e4 | 813 | |
62118709 | 814 | xfs_sb_version_addquota(&mp->m_sb); |
1da177e4 LT |
815 | mp->m_sb.sb_uquotino = NULLFSINO; |
816 | mp->m_sb.sb_gquotino = NULLFSINO; | |
d892d586 | 817 | mp->m_sb.sb_pquotino = NULLFSINO; |
1da177e4 | 818 | |
d892d586 CS |
819 | /* qflags will get updated fully _after_ quotacheck */ |
820 | mp->m_sb.sb_qflags = mp->m_qflags & XFS_ALL_QUOTA_ACCT; | |
1da177e4 LT |
821 | } |
822 | if (flags & XFS_QMOPT_UQUOTA) | |
823 | mp->m_sb.sb_uquotino = (*ip)->i_ino; | |
d892d586 | 824 | else if (flags & XFS_QMOPT_GQUOTA) |
1da177e4 | 825 | mp->m_sb.sb_gquotino = (*ip)->i_ino; |
d892d586 CS |
826 | else |
827 | mp->m_sb.sb_pquotino = (*ip)->i_ino; | |
3685c2a1 | 828 | spin_unlock(&mp->m_sb_lock); |
61e63ecb | 829 | xfs_log_sb(tp); |
1da177e4 | 830 | |
70393313 | 831 | error = xfs_trans_commit(tp); |
58c90473 DC |
832 | if (error) { |
833 | ASSERT(XFS_FORCED_SHUTDOWN(mp)); | |
53487786 | 834 | xfs_alert(mp, "%s failed (error %d)!", __func__, error); |
1da177e4 | 835 | } |
58c90473 DC |
836 | if (need_alloc) |
837 | xfs_finish_inode_setup(*ip); | |
838 | return error; | |
1da177e4 LT |
839 | } |
840 | ||
841 | ||
5b139738 | 842 | STATIC void |
1da177e4 LT |
843 | xfs_qm_reset_dqcounts( |
844 | xfs_mount_t *mp, | |
845 | xfs_buf_t *bp, | |
846 | xfs_dqid_t id, | |
847 | uint type) | |
848 | { | |
6fcdc59d | 849 | struct xfs_dqblk *dqb; |
1da177e4 LT |
850 | int j; |
851 | ||
0b1b213f CH |
852 | trace_xfs_reset_dqcounts(bp, _RET_IP_); |
853 | ||
1da177e4 LT |
854 | /* |
855 | * Reset all counters and timers. They'll be | |
856 | * started afresh by xfs_qm_quotacheck. | |
857 | */ | |
858 | #ifdef DEBUG | |
90115407 ES |
859 | j = (int)XFS_FSB_TO_B(mp, XFS_DQUOT_CLUSTER_SIZE_FSB) / |
860 | sizeof(xfs_dqblk_t); | |
8a7b8a89 | 861 | ASSERT(mp->m_quotainfo->qi_dqperchunk == j); |
1da177e4 | 862 | #endif |
6fcdc59d | 863 | dqb = bp->b_addr; |
8a7b8a89 | 864 | for (j = 0; j < mp->m_quotainfo->qi_dqperchunk; j++) { |
6fcdc59d DC |
865 | struct xfs_disk_dquot *ddq; |
866 | ||
867 | ddq = (struct xfs_disk_dquot *)&dqb[j]; | |
868 | ||
1da177e4 LT |
869 | /* |
870 | * Do a sanity check, and if needed, repair the dqblk. Don't | |
871 | * output any warnings because it's perfectly possible to | |
9aede1d8 | 872 | * find uninitialised dquot blks. See comment in xfs_dqcheck. |
1da177e4 | 873 | */ |
9aede1d8 DC |
874 | xfs_dqcheck(mp, ddq, id+j, type, XFS_QMOPT_DQREPAIR, |
875 | "xfs_quotacheck"); | |
dfcc70a8 JK |
876 | /* |
877 | * Reset type in case we are reusing group quota file for | |
878 | * project quotas or vice versa | |
879 | */ | |
880 | ddq->d_flags = type; | |
1149d96a CH |
881 | ddq->d_bcount = 0; |
882 | ddq->d_icount = 0; | |
883 | ddq->d_rtbcount = 0; | |
884 | ddq->d_btimer = 0; | |
885 | ddq->d_itimer = 0; | |
886 | ddq->d_rtbtimer = 0; | |
887 | ddq->d_bwarns = 0; | |
888 | ddq->d_iwarns = 0; | |
889 | ddq->d_rtbwarns = 0; | |
6fcdc59d DC |
890 | |
891 | if (xfs_sb_version_hascrc(&mp->m_sb)) { | |
892 | xfs_update_cksum((char *)&dqb[j], | |
893 | sizeof(struct xfs_dqblk), | |
894 | XFS_DQUOT_CRC_OFF); | |
895 | } | |
1da177e4 | 896 | } |
1da177e4 LT |
897 | } |
898 | ||
899 | STATIC int | |
900 | xfs_qm_dqiter_bufs( | |
43ff2122 CH |
901 | struct xfs_mount *mp, |
902 | xfs_dqid_t firstid, | |
903 | xfs_fsblock_t bno, | |
904 | xfs_filblks_t blkcnt, | |
905 | uint flags, | |
906 | struct list_head *buffer_list) | |
1da177e4 | 907 | { |
43ff2122 CH |
908 | struct xfs_buf *bp; |
909 | int error; | |
910 | int type; | |
1da177e4 LT |
911 | |
912 | ASSERT(blkcnt > 0); | |
c8ad20ff NS |
913 | type = flags & XFS_QMOPT_UQUOTA ? XFS_DQ_USER : |
914 | (flags & XFS_QMOPT_PQUOTA ? XFS_DQ_PROJ : XFS_DQ_GROUP); | |
1da177e4 LT |
915 | error = 0; |
916 | ||
917 | /* | |
918 | * Blkcnt arg can be a very big number, and might even be | |
919 | * larger than the log itself. So, we have to break it up into | |
920 | * manageable-sized transactions. | |
921 | * Note that we don't start a permanent transaction here; we might | |
922 | * not be able to get a log reservation for the whole thing up front, | |
923 | * and we don't really care to either, because we just discard | |
924 | * everything if we were to crash in the middle of this loop. | |
925 | */ | |
926 | while (blkcnt--) { | |
927 | error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, | |
928 | XFS_FSB_TO_DADDR(mp, bno), | |
c6319198 | 929 | mp->m_quotainfo->qi_dqchunklen, 0, &bp, |
1813dd64 | 930 | &xfs_dquot_buf_ops); |
1da177e4 | 931 | |
3fe58f30 | 932 | /* |
6fcdc59d DC |
933 | * CRC and validation errors will return a EFSCORRUPTED here. If |
934 | * this occurs, re-read without CRC validation so that we can | |
935 | * repair the damage via xfs_qm_reset_dqcounts(). This process | |
936 | * will leave a trace in the log indicating corruption has | |
937 | * been detected. | |
3fe58f30 | 938 | */ |
2451337d | 939 | if (error == -EFSCORRUPTED) { |
6fcdc59d DC |
940 | error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, |
941 | XFS_FSB_TO_DADDR(mp, bno), | |
942 | mp->m_quotainfo->qi_dqchunklen, 0, &bp, | |
943 | NULL); | |
944 | } | |
945 | ||
946 | if (error) | |
947 | break; | |
948 | ||
5fd364fe DC |
949 | /* |
950 | * A corrupt buffer might not have a verifier attached, so | |
951 | * make sure we have the correct one attached before writeback | |
952 | * occurs. | |
953 | */ | |
954 | bp->b_ops = &xfs_dquot_buf_ops; | |
5b139738 | 955 | xfs_qm_reset_dqcounts(mp, bp, firstid, type); |
43ff2122 | 956 | xfs_buf_delwri_queue(bp, buffer_list); |
61551f1e | 957 | xfs_buf_relse(bp); |
6fcdc59d DC |
958 | |
959 | /* goto the next block. */ | |
1da177e4 | 960 | bno++; |
8a7b8a89 | 961 | firstid += mp->m_quotainfo->qi_dqperchunk; |
1da177e4 | 962 | } |
43ff2122 | 963 | |
014c2544 | 964 | return error; |
1da177e4 LT |
965 | } |
966 | ||
967 | /* | |
c8ad20ff | 968 | * Iterate over all allocated USR/GRP/PRJ dquots in the system, calling a |
1da177e4 LT |
969 | * caller supplied function for every chunk of dquots that we find. |
970 | */ | |
971 | STATIC int | |
972 | xfs_qm_dqiterate( | |
43ff2122 CH |
973 | struct xfs_mount *mp, |
974 | struct xfs_inode *qip, | |
975 | uint flags, | |
976 | struct list_head *buffer_list) | |
1da177e4 | 977 | { |
43ff2122 | 978 | struct xfs_bmbt_irec *map; |
1da177e4 LT |
979 | int i, nmaps; /* number of map entries */ |
980 | int error; /* return value */ | |
981 | xfs_fileoff_t lblkno; | |
982 | xfs_filblks_t maxlblkcnt; | |
983 | xfs_dqid_t firstid; | |
984 | xfs_fsblock_t rablkno; | |
985 | xfs_filblks_t rablkcnt; | |
986 | ||
987 | error = 0; | |
988 | /* | |
c41564b5 | 989 | * This looks racy, but we can't keep an inode lock across a |
1da177e4 LT |
990 | * trans_reserve. But, this gets called during quotacheck, and that |
991 | * happens only at mount time which is single threaded. | |
992 | */ | |
993 | if (qip->i_d.di_nblocks == 0) | |
014c2544 | 994 | return 0; |
1da177e4 LT |
995 | |
996 | map = kmem_alloc(XFS_DQITER_MAP_SIZE * sizeof(*map), KM_SLEEP); | |
997 | ||
998 | lblkno = 0; | |
32972383 | 999 | maxlblkcnt = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes); |
1da177e4 | 1000 | do { |
da51d32d CH |
1001 | uint lock_mode; |
1002 | ||
1da177e4 LT |
1003 | nmaps = XFS_DQITER_MAP_SIZE; |
1004 | /* | |
1005 | * We aren't changing the inode itself. Just changing | |
1006 | * some of its data. No new blocks are added here, and | |
1007 | * the inode is never added to the transaction. | |
1008 | */ | |
da51d32d | 1009 | lock_mode = xfs_ilock_data_map_shared(qip); |
5c8ed202 DC |
1010 | error = xfs_bmapi_read(qip, lblkno, maxlblkcnt - lblkno, |
1011 | map, &nmaps, 0); | |
da51d32d | 1012 | xfs_iunlock(qip, lock_mode); |
1da177e4 LT |
1013 | if (error) |
1014 | break; | |
1015 | ||
1016 | ASSERT(nmaps <= XFS_DQITER_MAP_SIZE); | |
1017 | for (i = 0; i < nmaps; i++) { | |
1018 | ASSERT(map[i].br_startblock != DELAYSTARTBLOCK); | |
1019 | ASSERT(map[i].br_blockcount); | |
1020 | ||
1021 | ||
1022 | lblkno += map[i].br_blockcount; | |
1023 | ||
1024 | if (map[i].br_startblock == HOLESTARTBLOCK) | |
1025 | continue; | |
1026 | ||
1027 | firstid = (xfs_dqid_t) map[i].br_startoff * | |
8a7b8a89 | 1028 | mp->m_quotainfo->qi_dqperchunk; |
1da177e4 LT |
1029 | /* |
1030 | * Do a read-ahead on the next extent. | |
1031 | */ | |
1032 | if ((i+1 < nmaps) && | |
1033 | (map[i+1].br_startblock != HOLESTARTBLOCK)) { | |
1034 | rablkcnt = map[i+1].br_blockcount; | |
1035 | rablkno = map[i+1].br_startblock; | |
1036 | while (rablkcnt--) { | |
1a1a3e97 | 1037 | xfs_buf_readahead(mp->m_ddev_targp, |
1da177e4 | 1038 | XFS_FSB_TO_DADDR(mp, rablkno), |
c3f8fc73 | 1039 | mp->m_quotainfo->qi_dqchunklen, |
5fd364fe | 1040 | &xfs_dquot_buf_ops); |
1da177e4 LT |
1041 | rablkno++; |
1042 | } | |
1043 | } | |
1044 | /* | |
1045 | * Iterate thru all the blks in the extent and | |
1046 | * reset the counters of all the dquots inside them. | |
1047 | */ | |
43ff2122 CH |
1048 | error = xfs_qm_dqiter_bufs(mp, firstid, |
1049 | map[i].br_startblock, | |
1050 | map[i].br_blockcount, | |
1051 | flags, buffer_list); | |
1052 | if (error) | |
1053 | goto out; | |
1da177e4 | 1054 | } |
1da177e4 LT |
1055 | } while (nmaps > 0); |
1056 | ||
43ff2122 | 1057 | out: |
f0e2d93c | 1058 | kmem_free(map); |
014c2544 | 1059 | return error; |
1da177e4 LT |
1060 | } |
1061 | ||
1062 | /* | |
1063 | * Called by dqusage_adjust in doing a quotacheck. | |
52fda114 CH |
1064 | * |
1065 | * Given the inode, and a dquot id this updates both the incore dqout as well | |
1066 | * as the buffer copy. This is so that once the quotacheck is done, we can | |
1067 | * just log all the buffers, as opposed to logging numerous updates to | |
1068 | * individual dquots. | |
1da177e4 | 1069 | */ |
52fda114 | 1070 | STATIC int |
1da177e4 | 1071 | xfs_qm_quotacheck_dqadjust( |
52fda114 CH |
1072 | struct xfs_inode *ip, |
1073 | xfs_dqid_t id, | |
1074 | uint type, | |
1da177e4 LT |
1075 | xfs_qcnt_t nblks, |
1076 | xfs_qcnt_t rtblks) | |
1077 | { | |
52fda114 CH |
1078 | struct xfs_mount *mp = ip->i_mount; |
1079 | struct xfs_dquot *dqp; | |
1080 | int error; | |
1081 | ||
1082 | error = xfs_qm_dqget(mp, ip, id, type, | |
1083 | XFS_QMOPT_DQALLOC | XFS_QMOPT_DOWARN, &dqp); | |
1084 | if (error) { | |
1085 | /* | |
1086 | * Shouldn't be able to turn off quotas here. | |
1087 | */ | |
2451337d DC |
1088 | ASSERT(error != -ESRCH); |
1089 | ASSERT(error != -ENOENT); | |
52fda114 CH |
1090 | return error; |
1091 | } | |
0b1b213f CH |
1092 | |
1093 | trace_xfs_dqadjust(dqp); | |
1094 | ||
1da177e4 LT |
1095 | /* |
1096 | * Adjust the inode count and the block count to reflect this inode's | |
1097 | * resource usage. | |
1098 | */ | |
413d57c9 | 1099 | be64_add_cpu(&dqp->q_core.d_icount, 1); |
1da177e4 LT |
1100 | dqp->q_res_icount++; |
1101 | if (nblks) { | |
413d57c9 | 1102 | be64_add_cpu(&dqp->q_core.d_bcount, nblks); |
1da177e4 LT |
1103 | dqp->q_res_bcount += nblks; |
1104 | } | |
1105 | if (rtblks) { | |
413d57c9 | 1106 | be64_add_cpu(&dqp->q_core.d_rtbcount, rtblks); |
1da177e4 LT |
1107 | dqp->q_res_rtbcount += rtblks; |
1108 | } | |
1109 | ||
1110 | /* | |
1111 | * Set default limits, adjust timers (since we changed usages) | |
191f8488 CH |
1112 | * |
1113 | * There are no timers for the default values set in the root dquot. | |
1da177e4 | 1114 | */ |
191f8488 | 1115 | if (dqp->q_core.d_id) { |
4b6eae2e | 1116 | xfs_qm_adjust_dqlimits(mp, dqp); |
52fda114 | 1117 | xfs_qm_adjust_dqtimers(mp, &dqp->q_core); |
1da177e4 LT |
1118 | } |
1119 | ||
1120 | dqp->dq_flags |= XFS_DQ_DIRTY; | |
52fda114 CH |
1121 | xfs_qm_dqput(dqp); |
1122 | return 0; | |
1da177e4 LT |
1123 | } |
1124 | ||
1da177e4 LT |
1125 | /* |
1126 | * callback routine supplied to bulkstat(). Given an inumber, find its | |
1127 | * dquots and update them to account for resources taken by that inode. | |
1128 | */ | |
1129 | /* ARGSUSED */ | |
1130 | STATIC int | |
1131 | xfs_qm_dqusage_adjust( | |
1132 | xfs_mount_t *mp, /* mount point for filesystem */ | |
1133 | xfs_ino_t ino, /* inode number to get data for */ | |
1134 | void __user *buffer, /* not used */ | |
1135 | int ubsize, /* not used */ | |
1da177e4 | 1136 | int *ubused, /* not used */ |
1da177e4 LT |
1137 | int *res) /* result code value */ |
1138 | { | |
1139 | xfs_inode_t *ip; | |
8bfadd8d CH |
1140 | xfs_qcnt_t nblks; |
1141 | xfs_filblks_t rtblks = 0; /* total rt blks */ | |
1da177e4 LT |
1142 | int error; |
1143 | ||
1144 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
1145 | ||
1146 | /* | |
1147 | * rootino must have its resources accounted for, not so with the quota | |
1148 | * inodes. | |
1149 | */ | |
9cad19d2 | 1150 | if (xfs_is_quota_inode(&mp->m_sb, ino)) { |
1da177e4 | 1151 | *res = BULKSTAT_RV_NOTHING; |
2451337d | 1152 | return -EINVAL; |
1da177e4 LT |
1153 | } |
1154 | ||
1155 | /* | |
1156 | * We don't _need_ to take the ilock EXCL. However, the xfs_qm_dqget | |
1157 | * interface expects the inode to be exclusively locked because that's | |
1158 | * the case in all other instances. It's OK that we do this because | |
1159 | * quotacheck is done only at mount time. | |
1160 | */ | |
e0d76fa4 BF |
1161 | error = xfs_iget(mp, NULL, ino, XFS_IGET_DONTCACHE, XFS_ILOCK_EXCL, |
1162 | &ip); | |
52fda114 | 1163 | if (error) { |
1da177e4 | 1164 | *res = BULKSTAT_RV_NOTHING; |
014c2544 | 1165 | return error; |
1da177e4 LT |
1166 | } |
1167 | ||
52fda114 | 1168 | ASSERT(ip->i_delayed_blks == 0); |
1da177e4 | 1169 | |
52fda114 | 1170 | if (XFS_IS_REALTIME_INODE(ip)) { |
8bfadd8d CH |
1171 | struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK); |
1172 | ||
1173 | if (!(ifp->if_flags & XFS_IFEXTENTS)) { | |
1174 | error = xfs_iread_extents(NULL, ip, XFS_DATA_FORK); | |
1175 | if (error) | |
1176 | goto error0; | |
1177 | } | |
1178 | ||
1179 | xfs_bmap_count_leaves(ifp, &rtblks); | |
1da177e4 | 1180 | } |
1da177e4 | 1181 | |
52fda114 | 1182 | nblks = (xfs_qcnt_t)ip->i_d.di_nblocks - rtblks; |
1da177e4 LT |
1183 | |
1184 | /* | |
1185 | * Add the (disk blocks and inode) resources occupied by this | |
1186 | * inode to its dquots. We do this adjustment in the incore dquot, | |
1187 | * and also copy the changes to its buffer. | |
1188 | * We don't care about putting these changes in a transaction | |
1189 | * envelope because if we crash in the middle of a 'quotacheck' | |
1190 | * we have to start from the beginning anyway. | |
1191 | * Once we're done, we'll log all the dquot bufs. | |
1192 | * | |
c41564b5 | 1193 | * The *QUOTA_ON checks below may look pretty racy, but quotachecks |
1da177e4 LT |
1194 | * and quotaoffs don't race. (Quotachecks happen at mount time only). |
1195 | */ | |
1196 | if (XFS_IS_UQUOTA_ON(mp)) { | |
52fda114 CH |
1197 | error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_uid, |
1198 | XFS_DQ_USER, nblks, rtblks); | |
1199 | if (error) | |
1200 | goto error0; | |
1da177e4 | 1201 | } |
52fda114 CH |
1202 | |
1203 | if (XFS_IS_GQUOTA_ON(mp)) { | |
1204 | error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_gid, | |
1205 | XFS_DQ_GROUP, nblks, rtblks); | |
1206 | if (error) | |
1207 | goto error0; | |
1da177e4 | 1208 | } |
1da177e4 | 1209 | |
52fda114 | 1210 | if (XFS_IS_PQUOTA_ON(mp)) { |
6743099c | 1211 | error = xfs_qm_quotacheck_dqadjust(ip, xfs_get_projid(ip), |
52fda114 CH |
1212 | XFS_DQ_PROJ, nblks, rtblks); |
1213 | if (error) | |
1214 | goto error0; | |
1215 | } | |
1216 | ||
1217 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1218 | IRELE(ip); | |
1da177e4 | 1219 | *res = BULKSTAT_RV_DIDONE; |
014c2544 | 1220 | return 0; |
52fda114 CH |
1221 | |
1222 | error0: | |
1223 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1224 | IRELE(ip); | |
1225 | *res = BULKSTAT_RV_GIVEUP; | |
1226 | return error; | |
1da177e4 LT |
1227 | } |
1228 | ||
b84a3a96 CH |
1229 | STATIC int |
1230 | xfs_qm_flush_one( | |
43ff2122 CH |
1231 | struct xfs_dquot *dqp, |
1232 | void *data) | |
b84a3a96 | 1233 | { |
7912e7fe | 1234 | struct xfs_mount *mp = dqp->q_mount; |
43ff2122 | 1235 | struct list_head *buffer_list = data; |
fe7257fd | 1236 | struct xfs_buf *bp = NULL; |
b84a3a96 CH |
1237 | int error = 0; |
1238 | ||
1239 | xfs_dqlock(dqp); | |
1240 | if (dqp->dq_flags & XFS_DQ_FREEING) | |
1241 | goto out_unlock; | |
1242 | if (!XFS_DQ_IS_DIRTY(dqp)) | |
1243 | goto out_unlock; | |
1244 | ||
7912e7fe BF |
1245 | /* |
1246 | * The only way the dquot is already flush locked by the time quotacheck | |
1247 | * gets here is if reclaim flushed it before the dqadjust walk dirtied | |
1248 | * it for the final time. Quotacheck collects all dquot bufs in the | |
1249 | * local delwri queue before dquots are dirtied, so reclaim can't have | |
1250 | * possibly queued it for I/O. The only way out is to push the buffer to | |
1251 | * cycle the flush lock. | |
1252 | */ | |
1253 | if (!xfs_dqflock_nowait(dqp)) { | |
1254 | /* buf is pinned in-core by delwri list */ | |
1255 | DEFINE_SINGLE_BUF_MAP(map, dqp->q_blkno, | |
1256 | mp->m_quotainfo->qi_dqchunklen); | |
1257 | bp = _xfs_buf_find(mp->m_ddev_targp, &map, 1, 0, NULL); | |
1258 | if (!bp) { | |
1259 | error = -EINVAL; | |
1260 | goto out_unlock; | |
1261 | } | |
1262 | xfs_buf_unlock(bp); | |
1263 | ||
1264 | xfs_buf_delwri_pushbuf(bp, buffer_list); | |
1265 | xfs_buf_rele(bp); | |
1266 | ||
1267 | error = -EAGAIN; | |
1268 | goto out_unlock; | |
1269 | } | |
1270 | ||
fe7257fd CH |
1271 | error = xfs_qm_dqflush(dqp, &bp); |
1272 | if (error) | |
1273 | goto out_unlock; | |
b84a3a96 | 1274 | |
43ff2122 | 1275 | xfs_buf_delwri_queue(bp, buffer_list); |
fe7257fd | 1276 | xfs_buf_relse(bp); |
b84a3a96 CH |
1277 | out_unlock: |
1278 | xfs_dqunlock(dqp); | |
1279 | return error; | |
1280 | } | |
1281 | ||
1da177e4 LT |
1282 | /* |
1283 | * Walk thru all the filesystem inodes and construct a consistent view | |
1284 | * of the disk quota world. If the quotacheck fails, disable quotas. | |
1285 | */ | |
eb866bbf | 1286 | STATIC int |
1da177e4 LT |
1287 | xfs_qm_quotacheck( |
1288 | xfs_mount_t *mp) | |
1289 | { | |
113a5683 CS |
1290 | int done, count, error, error2; |
1291 | xfs_ino_t lastino; | |
1292 | size_t structsz; | |
1293 | uint flags; | |
1294 | LIST_HEAD (buffer_list); | |
1295 | struct xfs_inode *uip = mp->m_quotainfo->qi_uquotaip; | |
1296 | struct xfs_inode *gip = mp->m_quotainfo->qi_gquotaip; | |
92f8ff73 | 1297 | struct xfs_inode *pip = mp->m_quotainfo->qi_pquotaip; |
1da177e4 LT |
1298 | |
1299 | count = INT_MAX; | |
1300 | structsz = 1; | |
1301 | lastino = 0; | |
1302 | flags = 0; | |
1303 | ||
92f8ff73 | 1304 | ASSERT(uip || gip || pip); |
1da177e4 LT |
1305 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1306 | ||
0b932ccc | 1307 | xfs_notice(mp, "Quotacheck needed: Please wait."); |
1da177e4 LT |
1308 | |
1309 | /* | |
c8ad20ff | 1310 | * First we go thru all the dquots on disk, USR and GRP/PRJ, and reset |
1da177e4 LT |
1311 | * their counters to zero. We need a clean slate. |
1312 | * We don't log our changes till later. | |
1313 | */ | |
8a7b8a89 | 1314 | if (uip) { |
43ff2122 CH |
1315 | error = xfs_qm_dqiterate(mp, uip, XFS_QMOPT_UQUOTA, |
1316 | &buffer_list); | |
8a7b8a89 | 1317 | if (error) |
1da177e4 LT |
1318 | goto error_return; |
1319 | flags |= XFS_UQUOTA_CHKD; | |
1320 | } | |
1321 | ||
8a7b8a89 | 1322 | if (gip) { |
92f8ff73 | 1323 | error = xfs_qm_dqiterate(mp, gip, XFS_QMOPT_GQUOTA, |
43ff2122 | 1324 | &buffer_list); |
8a7b8a89 | 1325 | if (error) |
1da177e4 | 1326 | goto error_return; |
92f8ff73 CS |
1327 | flags |= XFS_GQUOTA_CHKD; |
1328 | } | |
1329 | ||
1330 | if (pip) { | |
1331 | error = xfs_qm_dqiterate(mp, pip, XFS_QMOPT_PQUOTA, | |
1332 | &buffer_list); | |
1333 | if (error) | |
1334 | goto error_return; | |
1335 | flags |= XFS_PQUOTA_CHKD; | |
1da177e4 LT |
1336 | } |
1337 | ||
1338 | do { | |
1339 | /* | |
1340 | * Iterate thru all the inodes in the file system, | |
1341 | * adjusting the corresponding dquot counters in core. | |
1342 | */ | |
7dce11db CH |
1343 | error = xfs_bulkstat(mp, &lastino, &count, |
1344 | xfs_qm_dqusage_adjust, | |
1345 | structsz, NULL, &done); | |
1346 | if (error) | |
1da177e4 LT |
1347 | break; |
1348 | ||
7dce11db | 1349 | } while (!done); |
1da177e4 | 1350 | |
4b8879df | 1351 | /* |
b84a3a96 CH |
1352 | * We've made all the changes that we need to make incore. Flush them |
1353 | * down to disk buffers if everything was updated successfully. | |
4b8879df | 1354 | */ |
43ff2122 CH |
1355 | if (XFS_IS_UQUOTA_ON(mp)) { |
1356 | error = xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_flush_one, | |
1357 | &buffer_list); | |
1358 | } | |
b84a3a96 | 1359 | if (XFS_IS_GQUOTA_ON(mp)) { |
43ff2122 CH |
1360 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_flush_one, |
1361 | &buffer_list); | |
b84a3a96 CH |
1362 | if (!error) |
1363 | error = error2; | |
1364 | } | |
1365 | if (XFS_IS_PQUOTA_ON(mp)) { | |
43ff2122 CH |
1366 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_flush_one, |
1367 | &buffer_list); | |
b84a3a96 CH |
1368 | if (!error) |
1369 | error = error2; | |
1370 | } | |
4b8879df | 1371 | |
43ff2122 CH |
1372 | error2 = xfs_buf_delwri_submit(&buffer_list); |
1373 | if (!error) | |
1374 | error = error2; | |
1375 | ||
1da177e4 LT |
1376 | /* |
1377 | * We can get this error if we couldn't do a dquot allocation inside | |
1378 | * xfs_qm_dqusage_adjust (via bulkstat). We don't care about the | |
1379 | * dirty dquots that might be cached, we just want to get rid of them | |
1380 | * and turn quotaoff. The dquots won't be attached to any of the inodes | |
1381 | * at this point (because we intentionally didn't in dqget_noattach). | |
1382 | */ | |
1383 | if (error) { | |
8112e9dc | 1384 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
1da177e4 LT |
1385 | goto error_return; |
1386 | } | |
1da177e4 | 1387 | |
1da177e4 LT |
1388 | /* |
1389 | * If one type of quotas is off, then it will lose its | |
1390 | * quotachecked status, since we won't be doing accounting for | |
1391 | * that type anymore. | |
1392 | */ | |
4177af3a | 1393 | mp->m_qflags &= ~XFS_ALL_QUOTA_CHKD; |
1da177e4 LT |
1394 | mp->m_qflags |= flags; |
1395 | ||
1da177e4 | 1396 | error_return: |
20e8a063 | 1397 | xfs_buf_delwri_cancel(&buffer_list); |
43ff2122 | 1398 | |
1da177e4 | 1399 | if (error) { |
0b932ccc DC |
1400 | xfs_warn(mp, |
1401 | "Quotacheck: Unsuccessful (Error %d): Disabling quotas.", | |
1402 | error); | |
1da177e4 LT |
1403 | /* |
1404 | * We must turn off quotas. | |
1405 | */ | |
1406 | ASSERT(mp->m_quotainfo != NULL); | |
1da177e4 | 1407 | xfs_qm_destroy_quotainfo(mp); |
31d5577b | 1408 | if (xfs_mount_reset_sbqflags(mp)) { |
0b932ccc DC |
1409 | xfs_warn(mp, |
1410 | "Quotacheck: Failed to reset quota flags."); | |
31d5577b | 1411 | } |
0b932ccc DC |
1412 | } else |
1413 | xfs_notice(mp, "Quotacheck: Done."); | |
d99831ff | 1414 | return error; |
1da177e4 LT |
1415 | } |
1416 | ||
eb866bbf JL |
1417 | /* |
1418 | * This is called from xfs_mountfs to start quotas and initialize all | |
1419 | * necessary data structures like quotainfo. This is also responsible for | |
1420 | * running a quotacheck as necessary. We are guaranteed that the superblock | |
1421 | * is consistently read in at this point. | |
1422 | * | |
1423 | * If we fail here, the mount will continue with quota turned off. We don't | |
1424 | * need to inidicate success or failure at all. | |
1425 | */ | |
1426 | void | |
1427 | xfs_qm_mount_quotas( | |
1428 | struct xfs_mount *mp) | |
1429 | { | |
1430 | int error = 0; | |
1431 | uint sbf; | |
1432 | ||
1433 | /* | |
1434 | * If quotas on realtime volumes is not supported, we disable | |
1435 | * quotas immediately. | |
1436 | */ | |
1437 | if (mp->m_sb.sb_rextents) { | |
1438 | xfs_notice(mp, "Cannot turn on quotas for realtime filesystem"); | |
1439 | mp->m_qflags = 0; | |
1440 | goto write_changes; | |
1441 | } | |
1442 | ||
1443 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
1444 | ||
1445 | /* | |
1446 | * Allocate the quotainfo structure inside the mount struct, and | |
1447 | * create quotainode(s), and change/rev superblock if necessary. | |
1448 | */ | |
1449 | error = xfs_qm_init_quotainfo(mp); | |
1450 | if (error) { | |
1451 | /* | |
1452 | * We must turn off quotas. | |
1453 | */ | |
1454 | ASSERT(mp->m_quotainfo == NULL); | |
1455 | mp->m_qflags = 0; | |
1456 | goto write_changes; | |
1457 | } | |
1458 | /* | |
1459 | * If any of the quotas are not consistent, do a quotacheck. | |
1460 | */ | |
1461 | if (XFS_QM_NEED_QUOTACHECK(mp)) { | |
1462 | error = xfs_qm_quotacheck(mp); | |
1463 | if (error) { | |
1464 | /* Quotacheck failed and disabled quotas. */ | |
1465 | return; | |
1466 | } | |
1467 | } | |
1468 | /* | |
1469 | * If one type of quotas is off, then it will lose its | |
1470 | * quotachecked status, since we won't be doing accounting for | |
1471 | * that type anymore. | |
1472 | */ | |
1473 | if (!XFS_IS_UQUOTA_ON(mp)) | |
1474 | mp->m_qflags &= ~XFS_UQUOTA_CHKD; | |
1475 | if (!XFS_IS_GQUOTA_ON(mp)) | |
1476 | mp->m_qflags &= ~XFS_GQUOTA_CHKD; | |
1477 | if (!XFS_IS_PQUOTA_ON(mp)) | |
1478 | mp->m_qflags &= ~XFS_PQUOTA_CHKD; | |
1479 | ||
1480 | write_changes: | |
1481 | /* | |
1482 | * We actually don't have to acquire the m_sb_lock at all. | |
1483 | * This can only be called from mount, and that's single threaded. XXX | |
1484 | */ | |
1485 | spin_lock(&mp->m_sb_lock); | |
1486 | sbf = mp->m_sb.sb_qflags; | |
1487 | mp->m_sb.sb_qflags = mp->m_qflags & XFS_MOUNT_QUOTA_ALL; | |
1488 | spin_unlock(&mp->m_sb_lock); | |
1489 | ||
1490 | if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) { | |
61e63ecb | 1491 | if (xfs_sync_sb(mp, false)) { |
eb866bbf JL |
1492 | /* |
1493 | * We could only have been turning quotas off. | |
1494 | * We aren't in very good shape actually because | |
1495 | * the incore structures are convinced that quotas are | |
1496 | * off, but the on disk superblock doesn't know that ! | |
1497 | */ | |
1498 | ASSERT(!(XFS_IS_QUOTA_RUNNING(mp))); | |
1499 | xfs_alert(mp, "%s: Superblock update failed!", | |
1500 | __func__); | |
1501 | } | |
1502 | } | |
1503 | ||
1504 | if (error) { | |
1505 | xfs_warn(mp, "Failed to initialize disk quotas."); | |
1506 | return; | |
1507 | } | |
1508 | } | |
1509 | ||
1da177e4 LT |
1510 | /* |
1511 | * This is called after the superblock has been read in and we're ready to | |
1512 | * iget the quota inodes. | |
1513 | */ | |
1514 | STATIC int | |
1515 | xfs_qm_init_quotainos( | |
1516 | xfs_mount_t *mp) | |
1517 | { | |
113a5683 CS |
1518 | struct xfs_inode *uip = NULL; |
1519 | struct xfs_inode *gip = NULL; | |
92f8ff73 | 1520 | struct xfs_inode *pip = NULL; |
113a5683 | 1521 | int error; |
113a5683 | 1522 | uint flags = 0; |
1da177e4 LT |
1523 | |
1524 | ASSERT(mp->m_quotainfo); | |
1da177e4 LT |
1525 | |
1526 | /* | |
1527 | * Get the uquota and gquota inodes | |
1528 | */ | |
62118709 | 1529 | if (xfs_sb_version_hasquota(&mp->m_sb)) { |
1da177e4 LT |
1530 | if (XFS_IS_UQUOTA_ON(mp) && |
1531 | mp->m_sb.sb_uquotino != NULLFSINO) { | |
1532 | ASSERT(mp->m_sb.sb_uquotino > 0); | |
113a5683 CS |
1533 | error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, |
1534 | 0, 0, &uip); | |
1535 | if (error) | |
b474c7ae | 1536 | return error; |
1da177e4 | 1537 | } |
92f8ff73 | 1538 | if (XFS_IS_GQUOTA_ON(mp) && |
1da177e4 LT |
1539 | mp->m_sb.sb_gquotino != NULLFSINO) { |
1540 | ASSERT(mp->m_sb.sb_gquotino > 0); | |
113a5683 CS |
1541 | error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, |
1542 | 0, 0, &gip); | |
1543 | if (error) | |
1544 | goto error_rele; | |
1da177e4 | 1545 | } |
92f8ff73 | 1546 | if (XFS_IS_PQUOTA_ON(mp) && |
d892d586 CS |
1547 | mp->m_sb.sb_pquotino != NULLFSINO) { |
1548 | ASSERT(mp->m_sb.sb_pquotino > 0); | |
1549 | error = xfs_iget(mp, NULL, mp->m_sb.sb_pquotino, | |
92f8ff73 CS |
1550 | 0, 0, &pip); |
1551 | if (error) | |
1552 | goto error_rele; | |
1553 | } | |
1da177e4 LT |
1554 | } else { |
1555 | flags |= XFS_QMOPT_SBVERSION; | |
1da177e4 LT |
1556 | } |
1557 | ||
1558 | /* | |
92f8ff73 | 1559 | * Create the three inodes, if they don't exist already. The changes |
1da177e4 LT |
1560 | * made above will get added to a transaction and logged in one of |
1561 | * the qino_alloc calls below. If the device is readonly, | |
1562 | * temporarily switch to read-write to do this. | |
1563 | */ | |
1564 | if (XFS_IS_UQUOTA_ON(mp) && uip == NULL) { | |
113a5683 | 1565 | error = xfs_qm_qino_alloc(mp, &uip, |
113a5683 CS |
1566 | flags | XFS_QMOPT_UQUOTA); |
1567 | if (error) | |
1568 | goto error_rele; | |
1da177e4 LT |
1569 | |
1570 | flags &= ~XFS_QMOPT_SBVERSION; | |
1571 | } | |
92f8ff73 | 1572 | if (XFS_IS_GQUOTA_ON(mp) && gip == NULL) { |
c8ad20ff | 1573 | error = xfs_qm_qino_alloc(mp, &gip, |
92f8ff73 CS |
1574 | flags | XFS_QMOPT_GQUOTA); |
1575 | if (error) | |
1576 | goto error_rele; | |
1577 | ||
1578 | flags &= ~XFS_QMOPT_SBVERSION; | |
1579 | } | |
1580 | if (XFS_IS_PQUOTA_ON(mp) && pip == NULL) { | |
92f8ff73 | 1581 | error = xfs_qm_qino_alloc(mp, &pip, |
92f8ff73 | 1582 | flags | XFS_QMOPT_PQUOTA); |
113a5683 CS |
1583 | if (error) |
1584 | goto error_rele; | |
1da177e4 LT |
1585 | } |
1586 | ||
8a7b8a89 CH |
1587 | mp->m_quotainfo->qi_uquotaip = uip; |
1588 | mp->m_quotainfo->qi_gquotaip = gip; | |
92f8ff73 | 1589 | mp->m_quotainfo->qi_pquotaip = pip; |
1da177e4 | 1590 | |
014c2544 | 1591 | return 0; |
113a5683 CS |
1592 | |
1593 | error_rele: | |
1594 | if (uip) | |
1595 | IRELE(uip); | |
1596 | if (gip) | |
1597 | IRELE(gip); | |
92f8ff73 CS |
1598 | if (pip) |
1599 | IRELE(pip); | |
b474c7ae | 1600 | return error; |
1da177e4 LT |
1601 | } |
1602 | ||
92b2e5b3 CH |
1603 | STATIC void |
1604 | xfs_qm_dqfree_one( | |
1605 | struct xfs_dquot *dqp) | |
1606 | { | |
1607 | struct xfs_mount *mp = dqp->q_mount; | |
1608 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
1da177e4 | 1609 | |
9f920f11 | 1610 | mutex_lock(&qi->qi_tree_lock); |
329e0875 | 1611 | radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags), |
9f920f11 | 1612 | be32_to_cpu(dqp->q_core.d_id)); |
368e1361 | 1613 | |
92b2e5b3 | 1614 | qi->qi_dquots--; |
b84a3a96 | 1615 | mutex_unlock(&qi->qi_tree_lock); |
92b2e5b3 CH |
1616 | |
1617 | xfs_qm_dqdestroy(dqp); | |
1618 | } | |
1619 | ||
1da177e4 LT |
1620 | /* --------------- utility functions for vnodeops ---------------- */ |
1621 | ||
1622 | ||
1623 | /* | |
6c77b0ea | 1624 | * Given an inode, a uid, gid and prid make sure that we have |
1da177e4 LT |
1625 | * allocated relevant dquot(s) on disk, and that we won't exceed inode |
1626 | * quotas by creating this file. | |
1627 | * This also attaches dquot(s) to the given inode after locking it, | |
1628 | * and returns the dquots corresponding to the uid and/or gid. | |
1629 | * | |
1630 | * in : inode (unlocked) | |
1631 | * out : udquot, gdquot with references taken and unlocked | |
1632 | */ | |
1633 | int | |
1634 | xfs_qm_vop_dqalloc( | |
7d095257 | 1635 | struct xfs_inode *ip, |
7aab1b28 DE |
1636 | xfs_dqid_t uid, |
1637 | xfs_dqid_t gid, | |
7d095257 CH |
1638 | prid_t prid, |
1639 | uint flags, | |
1640 | struct xfs_dquot **O_udqpp, | |
92f8ff73 CS |
1641 | struct xfs_dquot **O_gdqpp, |
1642 | struct xfs_dquot **O_pdqpp) | |
1da177e4 | 1643 | { |
7d095257 | 1644 | struct xfs_mount *mp = ip->i_mount; |
113a5683 CS |
1645 | struct xfs_dquot *uq = NULL; |
1646 | struct xfs_dquot *gq = NULL; | |
92f8ff73 | 1647 | struct xfs_dquot *pq = NULL; |
7d095257 CH |
1648 | int error; |
1649 | uint lockflags; | |
1da177e4 | 1650 | |
7d095257 | 1651 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
1da177e4 LT |
1652 | return 0; |
1653 | ||
1654 | lockflags = XFS_ILOCK_EXCL; | |
1655 | xfs_ilock(ip, lockflags); | |
1656 | ||
bd186aa9 | 1657 | if ((flags & XFS_QMOPT_INHERIT) && XFS_INHERIT_GID(ip)) |
1da177e4 LT |
1658 | gid = ip->i_d.di_gid; |
1659 | ||
1660 | /* | |
1661 | * Attach the dquot(s) to this inode, doing a dquot allocation | |
1662 | * if necessary. The dquot(s) will not be locked. | |
1663 | */ | |
1664 | if (XFS_NOT_DQATTACHED(mp, ip)) { | |
7d095257 CH |
1665 | error = xfs_qm_dqattach_locked(ip, XFS_QMOPT_DQALLOC); |
1666 | if (error) { | |
1da177e4 | 1667 | xfs_iunlock(ip, lockflags); |
014c2544 | 1668 | return error; |
1da177e4 LT |
1669 | } |
1670 | } | |
1671 | ||
c8ad20ff | 1672 | if ((flags & XFS_QMOPT_UQUOTA) && XFS_IS_UQUOTA_ON(mp)) { |
1da177e4 LT |
1673 | if (ip->i_d.di_uid != uid) { |
1674 | /* | |
1675 | * What we need is the dquot that has this uid, and | |
1676 | * if we send the inode to dqget, the uid of the inode | |
1677 | * takes priority over what's sent in the uid argument. | |
1678 | * We must unlock inode here before calling dqget if | |
1679 | * we're not sending the inode, because otherwise | |
1680 | * we'll deadlock by doing trans_reserve while | |
1681 | * holding ilock. | |
1682 | */ | |
1683 | xfs_iunlock(ip, lockflags); | |
7aab1b28 | 1684 | error = xfs_qm_dqget(mp, NULL, uid, |
1da177e4 LT |
1685 | XFS_DQ_USER, |
1686 | XFS_QMOPT_DQALLOC | | |
1687 | XFS_QMOPT_DOWARN, | |
113a5683 CS |
1688 | &uq); |
1689 | if (error) { | |
2451337d | 1690 | ASSERT(error != -ENOENT); |
014c2544 | 1691 | return error; |
1da177e4 LT |
1692 | } |
1693 | /* | |
1694 | * Get the ilock in the right order. | |
1695 | */ | |
1696 | xfs_dqunlock(uq); | |
1697 | lockflags = XFS_ILOCK_SHARED; | |
1698 | xfs_ilock(ip, lockflags); | |
1699 | } else { | |
1700 | /* | |
1701 | * Take an extra reference, because we'll return | |
1702 | * this to caller | |
1703 | */ | |
1704 | ASSERT(ip->i_udquot); | |
78e55892 | 1705 | uq = xfs_qm_dqhold(ip->i_udquot); |
1da177e4 LT |
1706 | } |
1707 | } | |
c8ad20ff | 1708 | if ((flags & XFS_QMOPT_GQUOTA) && XFS_IS_GQUOTA_ON(mp)) { |
1da177e4 LT |
1709 | if (ip->i_d.di_gid != gid) { |
1710 | xfs_iunlock(ip, lockflags); | |
7aab1b28 | 1711 | error = xfs_qm_dqget(mp, NULL, gid, |
1da177e4 LT |
1712 | XFS_DQ_GROUP, |
1713 | XFS_QMOPT_DQALLOC | | |
1714 | XFS_QMOPT_DOWARN, | |
113a5683 CS |
1715 | &gq); |
1716 | if (error) { | |
2451337d | 1717 | ASSERT(error != -ENOENT); |
113a5683 | 1718 | goto error_rele; |
1da177e4 LT |
1719 | } |
1720 | xfs_dqunlock(gq); | |
1721 | lockflags = XFS_ILOCK_SHARED; | |
1722 | xfs_ilock(ip, lockflags); | |
1723 | } else { | |
1724 | ASSERT(ip->i_gdquot); | |
78e55892 | 1725 | gq = xfs_qm_dqhold(ip->i_gdquot); |
1da177e4 | 1726 | } |
92f8ff73 CS |
1727 | } |
1728 | if ((flags & XFS_QMOPT_PQUOTA) && XFS_IS_PQUOTA_ON(mp)) { | |
6743099c | 1729 | if (xfs_get_projid(ip) != prid) { |
c8ad20ff | 1730 | xfs_iunlock(ip, lockflags); |
113a5683 | 1731 | error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t)prid, |
c8ad20ff NS |
1732 | XFS_DQ_PROJ, |
1733 | XFS_QMOPT_DQALLOC | | |
1734 | XFS_QMOPT_DOWARN, | |
92f8ff73 | 1735 | &pq); |
113a5683 | 1736 | if (error) { |
2451337d | 1737 | ASSERT(error != -ENOENT); |
113a5683 | 1738 | goto error_rele; |
c8ad20ff | 1739 | } |
92f8ff73 | 1740 | xfs_dqunlock(pq); |
c8ad20ff NS |
1741 | lockflags = XFS_ILOCK_SHARED; |
1742 | xfs_ilock(ip, lockflags); | |
1743 | } else { | |
92f8ff73 CS |
1744 | ASSERT(ip->i_pdquot); |
1745 | pq = xfs_qm_dqhold(ip->i_pdquot); | |
c8ad20ff | 1746 | } |
1da177e4 LT |
1747 | } |
1748 | if (uq) | |
0b1b213f | 1749 | trace_xfs_dquot_dqalloc(ip); |
1da177e4 LT |
1750 | |
1751 | xfs_iunlock(ip, lockflags); | |
1752 | if (O_udqpp) | |
1753 | *O_udqpp = uq; | |
d2a5e3c6 | 1754 | else |
1da177e4 LT |
1755 | xfs_qm_dqrele(uq); |
1756 | if (O_gdqpp) | |
1757 | *O_gdqpp = gq; | |
d2a5e3c6 | 1758 | else |
1da177e4 | 1759 | xfs_qm_dqrele(gq); |
92f8ff73 CS |
1760 | if (O_pdqpp) |
1761 | *O_pdqpp = pq; | |
d2a5e3c6 | 1762 | else |
92f8ff73 | 1763 | xfs_qm_dqrele(pq); |
014c2544 | 1764 | return 0; |
113a5683 CS |
1765 | |
1766 | error_rele: | |
d2a5e3c6 ME |
1767 | xfs_qm_dqrele(gq); |
1768 | xfs_qm_dqrele(uq); | |
113a5683 | 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 |