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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" |
239880ef | 34 | #include "xfs_trans.h" |
1da177e4 | 35 | #include "xfs_trans_space.h" |
1da177e4 | 36 | #include "xfs_qm.h" |
0b1b213f | 37 | #include "xfs_trace.h" |
33479e05 | 38 | #include "xfs_icache.h" |
6fcdc59d | 39 | #include "xfs_cksum.h" |
1da177e4 LT |
40 | |
41 | /* | |
42 | * The global quota manager. There is only one of these for the entire | |
43 | * system, _not_ one per file system. XQM keeps track of the overall | |
44 | * quota functionality, including maintaining the freelist and hash | |
45 | * tables of dquots. | |
46 | */ | |
1da177e4 | 47 | STATIC int xfs_qm_init_quotainos(xfs_mount_t *); |
ba0f32d4 | 48 | STATIC int xfs_qm_init_quotainfo(xfs_mount_t *); |
1da177e4 | 49 | |
cd56a39a DC |
50 | |
51 | STATIC void xfs_qm_dqfree_one(struct xfs_dquot *dqp); | |
b84a3a96 CH |
52 | /* |
53 | * We use the batch lookup interface to iterate over the dquots as it | |
54 | * currently is the only interface into the radix tree code that allows | |
55 | * fuzzy lookups instead of exact matches. Holding the lock over multiple | |
56 | * operations is fine as all callers are used either during mount/umount | |
57 | * or quotaoff. | |
58 | */ | |
59 | #define XFS_DQ_LOOKUP_BATCH 32 | |
60 | ||
61 | STATIC int | |
62 | xfs_qm_dquot_walk( | |
63 | struct xfs_mount *mp, | |
64 | int type, | |
43ff2122 CH |
65 | int (*execute)(struct xfs_dquot *dqp, void *data), |
66 | void *data) | |
b84a3a96 CH |
67 | { |
68 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
329e0875 | 69 | struct radix_tree_root *tree = xfs_dquot_tree(qi, type); |
b84a3a96 CH |
70 | uint32_t next_index; |
71 | int last_error = 0; | |
72 | int skipped; | |
73 | int nr_found; | |
74 | ||
75 | restart: | |
76 | skipped = 0; | |
77 | next_index = 0; | |
78 | nr_found = 0; | |
79 | ||
80 | while (1) { | |
81 | struct xfs_dquot *batch[XFS_DQ_LOOKUP_BATCH]; | |
82 | int error = 0; | |
83 | int i; | |
84 | ||
85 | mutex_lock(&qi->qi_tree_lock); | |
86 | nr_found = radix_tree_gang_lookup(tree, (void **)batch, | |
87 | next_index, XFS_DQ_LOOKUP_BATCH); | |
88 | if (!nr_found) { | |
89 | mutex_unlock(&qi->qi_tree_lock); | |
90 | break; | |
91 | } | |
92 | ||
93 | for (i = 0; i < nr_found; i++) { | |
94 | struct xfs_dquot *dqp = batch[i]; | |
95 | ||
96 | next_index = be32_to_cpu(dqp->q_core.d_id) + 1; | |
97 | ||
43ff2122 | 98 | error = execute(batch[i], data); |
2451337d | 99 | if (error == -EAGAIN) { |
b84a3a96 CH |
100 | skipped++; |
101 | continue; | |
102 | } | |
2451337d | 103 | if (error && last_error != -EFSCORRUPTED) |
b84a3a96 CH |
104 | last_error = error; |
105 | } | |
106 | ||
107 | mutex_unlock(&qi->qi_tree_lock); | |
108 | ||
109 | /* bail out if the filesystem is corrupted. */ | |
2451337d | 110 | if (last_error == -EFSCORRUPTED) { |
b84a3a96 CH |
111 | skipped = 0; |
112 | break; | |
113 | } | |
cfaf2d03 BF |
114 | /* we're done if id overflows back to zero */ |
115 | if (!next_index) | |
116 | break; | |
b84a3a96 CH |
117 | } |
118 | ||
119 | if (skipped) { | |
120 | delay(1); | |
121 | goto restart; | |
122 | } | |
123 | ||
124 | return last_error; | |
125 | } | |
126 | ||
127 | ||
128 | /* | |
129 | * Purge a dquot from all tracking data structures and free it. | |
130 | */ | |
131 | STATIC int | |
132 | xfs_qm_dqpurge( | |
43ff2122 CH |
133 | struct xfs_dquot *dqp, |
134 | void *data) | |
b84a3a96 CH |
135 | { |
136 | struct xfs_mount *mp = dqp->q_mount; | |
137 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
b84a3a96 CH |
138 | |
139 | xfs_dqlock(dqp); | |
140 | if ((dqp->dq_flags & XFS_DQ_FREEING) || dqp->q_nrefs != 0) { | |
141 | xfs_dqunlock(dqp); | |
2451337d | 142 | return -EAGAIN; |
b84a3a96 CH |
143 | } |
144 | ||
b84a3a96 CH |
145 | dqp->dq_flags |= XFS_DQ_FREEING; |
146 | ||
43ff2122 | 147 | xfs_dqflock(dqp); |
b84a3a96 CH |
148 | |
149 | /* | |
150 | * If we are turning this type of quotas off, we don't care | |
151 | * about the dirty metadata sitting in this dquot. OTOH, if | |
152 | * we're unmounting, we do care, so we flush it and wait. | |
153 | */ | |
154 | if (XFS_DQ_IS_DIRTY(dqp)) { | |
fe7257fd CH |
155 | struct xfs_buf *bp = NULL; |
156 | int error; | |
b84a3a96 CH |
157 | |
158 | /* | |
159 | * We don't care about getting disk errors here. We need | |
160 | * to purge this dquot anyway, so we go ahead regardless. | |
161 | */ | |
fe7257fd CH |
162 | error = xfs_qm_dqflush(dqp, &bp); |
163 | if (error) { | |
b84a3a96 CH |
164 | xfs_warn(mp, "%s: dquot %p flush failed", |
165 | __func__, dqp); | |
fe7257fd CH |
166 | } else { |
167 | error = xfs_bwrite(bp); | |
168 | xfs_buf_relse(bp); | |
169 | } | |
b84a3a96 CH |
170 | xfs_dqflock(dqp); |
171 | } | |
172 | ||
173 | ASSERT(atomic_read(&dqp->q_pincount) == 0); | |
174 | ASSERT(XFS_FORCED_SHUTDOWN(mp) || | |
175 | !(dqp->q_logitem.qli_item.li_flags & XFS_LI_IN_AIL)); | |
176 | ||
177 | xfs_dqfunlock(dqp); | |
178 | xfs_dqunlock(dqp); | |
179 | ||
329e0875 | 180 | radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags), |
b84a3a96 CH |
181 | be32_to_cpu(dqp->q_core.d_id)); |
182 | qi->qi_dquots--; | |
183 | ||
184 | /* | |
185 | * We move dquots to the freelist as soon as their reference count | |
186 | * hits zero, so it really should be on the freelist here. | |
187 | */ | |
b84a3a96 | 188 | ASSERT(!list_empty(&dqp->q_lru)); |
cd56a39a | 189 | list_lru_del(&qi->qi_lru, &dqp->q_lru); |
ff6d6af2 | 190 | XFS_STATS_DEC(mp, xs_qm_dquot_unused); |
b84a3a96 CH |
191 | |
192 | xfs_qm_dqdestroy(dqp); | |
df8052e7 JL |
193 | return 0; |
194 | } | |
195 | ||
b84a3a96 CH |
196 | /* |
197 | * Purge the dquot cache. | |
198 | */ | |
199 | void | |
200 | xfs_qm_dqpurge_all( | |
201 | struct xfs_mount *mp, | |
202 | uint flags) | |
203 | { | |
3c353375 DC |
204 | if (flags & XFS_QMOPT_UQUOTA) |
205 | xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_dqpurge, NULL); | |
b84a3a96 | 206 | if (flags & XFS_QMOPT_GQUOTA) |
43ff2122 | 207 | xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_dqpurge, NULL); |
b84a3a96 | 208 | if (flags & XFS_QMOPT_PQUOTA) |
43ff2122 | 209 | xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_dqpurge, NULL); |
b84a3a96 CH |
210 | } |
211 | ||
1da177e4 LT |
212 | /* |
213 | * Just destroy the quotainfo structure. | |
214 | */ | |
215 | void | |
7d095257 CH |
216 | xfs_qm_unmount( |
217 | struct xfs_mount *mp) | |
1da177e4 | 218 | { |
7d095257 | 219 | if (mp->m_quotainfo) { |
8112e9dc | 220 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
1da177e4 | 221 | xfs_qm_destroy_quotainfo(mp); |
7d095257 | 222 | } |
1da177e4 LT |
223 | } |
224 | ||
1da177e4 LT |
225 | /* |
226 | * Called from the vfsops layer. | |
227 | */ | |
e57481dc | 228 | void |
1da177e4 LT |
229 | xfs_qm_unmount_quotas( |
230 | xfs_mount_t *mp) | |
231 | { | |
1da177e4 LT |
232 | /* |
233 | * Release the dquots that root inode, et al might be holding, | |
234 | * before we flush quotas and blow away the quotainfo structure. | |
235 | */ | |
236 | ASSERT(mp->m_rootip); | |
237 | xfs_qm_dqdetach(mp->m_rootip); | |
238 | if (mp->m_rbmip) | |
239 | xfs_qm_dqdetach(mp->m_rbmip); | |
240 | if (mp->m_rsumip) | |
241 | xfs_qm_dqdetach(mp->m_rsumip); | |
242 | ||
243 | /* | |
e57481dc | 244 | * Release the quota inodes. |
1da177e4 | 245 | */ |
1da177e4 | 246 | if (mp->m_quotainfo) { |
e57481dc CH |
247 | if (mp->m_quotainfo->qi_uquotaip) { |
248 | IRELE(mp->m_quotainfo->qi_uquotaip); | |
249 | mp->m_quotainfo->qi_uquotaip = NULL; | |
1da177e4 | 250 | } |
e57481dc CH |
251 | if (mp->m_quotainfo->qi_gquotaip) { |
252 | IRELE(mp->m_quotainfo->qi_gquotaip); | |
253 | mp->m_quotainfo->qi_gquotaip = NULL; | |
1da177e4 | 254 | } |
92f8ff73 CS |
255 | if (mp->m_quotainfo->qi_pquotaip) { |
256 | IRELE(mp->m_quotainfo->qi_pquotaip); | |
257 | mp->m_quotainfo->qi_pquotaip = NULL; | |
258 | } | |
1da177e4 | 259 | } |
1da177e4 LT |
260 | } |
261 | ||
1da177e4 LT |
262 | STATIC int |
263 | xfs_qm_dqattach_one( | |
264 | xfs_inode_t *ip, | |
265 | xfs_dqid_t id, | |
266 | uint type, | |
267 | uint doalloc, | |
1da177e4 LT |
268 | xfs_dquot_t **IO_idqpp) |
269 | { | |
270 | xfs_dquot_t *dqp; | |
271 | int error; | |
272 | ||
579aa9ca | 273 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 274 | error = 0; |
8e9b6e7f | 275 | |
1da177e4 | 276 | /* |
3c353375 DC |
277 | * See if we already have it in the inode itself. IO_idqpp is &i_udquot |
278 | * or &i_gdquot. This made the code look weird, but made the logic a lot | |
279 | * simpler. | |
1da177e4 | 280 | */ |
8e9b6e7f CH |
281 | dqp = *IO_idqpp; |
282 | if (dqp) { | |
0b1b213f | 283 | trace_xfs_dqattach_found(dqp); |
8e9b6e7f | 284 | return 0; |
1da177e4 LT |
285 | } |
286 | ||
287 | /* | |
3c353375 DC |
288 | * Find the dquot from somewhere. This bumps the reference count of |
289 | * dquot and returns it locked. This can return ENOENT if dquot didn't | |
290 | * exist on disk and we didn't ask it to allocate; ESRCH if quotas got | |
291 | * turned off suddenly. | |
1da177e4 | 292 | */ |
db3e74b5 MH |
293 | error = xfs_qm_dqget(ip->i_mount, ip, id, type, |
294 | doalloc | XFS_QMOPT_DOWARN, &dqp); | |
8e9b6e7f CH |
295 | if (error) |
296 | return error; | |
1da177e4 | 297 | |
0b1b213f | 298 | trace_xfs_dqattach_get(dqp); |
8e9b6e7f | 299 | |
1da177e4 LT |
300 | /* |
301 | * dqget may have dropped and re-acquired the ilock, but it guarantees | |
302 | * that the dquot returned is the one that should go in the inode. | |
303 | */ | |
304 | *IO_idqpp = dqp; | |
8e9b6e7f CH |
305 | xfs_dqunlock(dqp); |
306 | return 0; | |
1da177e4 LT |
307 | } |
308 | ||
b4d05e30 CH |
309 | static bool |
310 | xfs_qm_need_dqattach( | |
311 | struct xfs_inode *ip) | |
312 | { | |
313 | struct xfs_mount *mp = ip->i_mount; | |
314 | ||
315 | if (!XFS_IS_QUOTA_RUNNING(mp)) | |
316 | return false; | |
317 | if (!XFS_IS_QUOTA_ON(mp)) | |
318 | return false; | |
319 | if (!XFS_NOT_DQATTACHED(mp, ip)) | |
320 | return false; | |
9cad19d2 | 321 | if (xfs_is_quota_inode(&mp->m_sb, ip->i_ino)) |
b4d05e30 CH |
322 | return false; |
323 | return true; | |
324 | } | |
1da177e4 LT |
325 | |
326 | /* | |
c8ad20ff NS |
327 | * Given a locked inode, attach dquot(s) to it, taking U/G/P-QUOTAON |
328 | * into account. | |
1da177e4 | 329 | * If XFS_QMOPT_DQALLOC, the dquot(s) will be allocated if needed. |
1da177e4 LT |
330 | * Inode may get unlocked and relocked in here, and the caller must deal with |
331 | * the consequences. | |
332 | */ | |
333 | int | |
7d095257 | 334 | xfs_qm_dqattach_locked( |
1da177e4 LT |
335 | xfs_inode_t *ip, |
336 | uint flags) | |
337 | { | |
338 | xfs_mount_t *mp = ip->i_mount; | |
1da177e4 LT |
339 | int error = 0; |
340 | ||
b4d05e30 | 341 | if (!xfs_qm_need_dqattach(ip)) |
014c2544 | 342 | return 0; |
1da177e4 | 343 | |
7d095257 | 344 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 345 | |
3c353375 | 346 | if (XFS_IS_UQUOTA_ON(mp) && !ip->i_udquot) { |
1da177e4 LT |
347 | error = xfs_qm_dqattach_one(ip, ip->i_d.di_uid, XFS_DQ_USER, |
348 | flags & XFS_QMOPT_DQALLOC, | |
3c353375 | 349 | &ip->i_udquot); |
1da177e4 LT |
350 | if (error) |
351 | goto done; | |
3c353375 | 352 | ASSERT(ip->i_udquot); |
1da177e4 | 353 | } |
579aa9ca | 354 | |
3c353375 | 355 | if (XFS_IS_GQUOTA_ON(mp) && !ip->i_gdquot) { |
92f8ff73 | 356 | error = xfs_qm_dqattach_one(ip, ip->i_d.di_gid, XFS_DQ_GROUP, |
1da177e4 | 357 | flags & XFS_QMOPT_DQALLOC, |
3c353375 | 358 | &ip->i_gdquot); |
1da177e4 LT |
359 | if (error) |
360 | goto done; | |
3c353375 | 361 | ASSERT(ip->i_gdquot); |
1da177e4 LT |
362 | } |
363 | ||
3c353375 | 364 | if (XFS_IS_PQUOTA_ON(mp) && !ip->i_pdquot) { |
92f8ff73 CS |
365 | error = xfs_qm_dqattach_one(ip, xfs_get_projid(ip), XFS_DQ_PROJ, |
366 | flags & XFS_QMOPT_DQALLOC, | |
3c353375 | 367 | &ip->i_pdquot); |
92f8ff73 CS |
368 | if (error) |
369 | goto done; | |
3c353375 | 370 | ASSERT(ip->i_pdquot); |
92f8ff73 CS |
371 | } |
372 | ||
3c353375 | 373 | done: |
1da177e4 | 374 | /* |
3c353375 DC |
375 | * Don't worry about the dquots that we may have attached before any |
376 | * error - they'll get detached later if it has not already been done. | |
1da177e4 | 377 | */ |
7d095257 | 378 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
7d095257 CH |
379 | return error; |
380 | } | |
1da177e4 | 381 | |
7d095257 CH |
382 | int |
383 | xfs_qm_dqattach( | |
384 | struct xfs_inode *ip, | |
385 | uint flags) | |
386 | { | |
387 | int error; | |
388 | ||
b4d05e30 CH |
389 | if (!xfs_qm_need_dqattach(ip)) |
390 | return 0; | |
391 | ||
7d095257 CH |
392 | xfs_ilock(ip, XFS_ILOCK_EXCL); |
393 | error = xfs_qm_dqattach_locked(ip, flags); | |
394 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1da177e4 | 395 | |
014c2544 | 396 | return error; |
1da177e4 LT |
397 | } |
398 | ||
399 | /* | |
400 | * Release dquots (and their references) if any. | |
401 | * The inode should be locked EXCL except when this's called by | |
402 | * xfs_ireclaim. | |
403 | */ | |
404 | void | |
405 | xfs_qm_dqdetach( | |
406 | xfs_inode_t *ip) | |
407 | { | |
92f8ff73 | 408 | if (!(ip->i_udquot || ip->i_gdquot || ip->i_pdquot)) |
1da177e4 LT |
409 | return; |
410 | ||
0b1b213f CH |
411 | trace_xfs_dquot_dqdetach(ip); |
412 | ||
9cad19d2 | 413 | ASSERT(!xfs_is_quota_inode(&ip->i_mount->m_sb, ip->i_ino)); |
1da177e4 LT |
414 | if (ip->i_udquot) { |
415 | xfs_qm_dqrele(ip->i_udquot); | |
416 | ip->i_udquot = NULL; | |
417 | } | |
418 | if (ip->i_gdquot) { | |
419 | xfs_qm_dqrele(ip->i_gdquot); | |
420 | ip->i_gdquot = NULL; | |
421 | } | |
92f8ff73 CS |
422 | if (ip->i_pdquot) { |
423 | xfs_qm_dqrele(ip->i_pdquot); | |
424 | ip->i_pdquot = NULL; | |
425 | } | |
1da177e4 LT |
426 | } |
427 | ||
cd56a39a DC |
428 | struct xfs_qm_isolate { |
429 | struct list_head buffers; | |
430 | struct list_head dispose; | |
431 | }; | |
432 | ||
433 | static enum lru_status | |
434 | xfs_qm_dquot_isolate( | |
435 | struct list_head *item, | |
3f97b163 | 436 | struct list_lru_one *lru, |
cd56a39a DC |
437 | spinlock_t *lru_lock, |
438 | void *arg) | |
bf1ed383 | 439 | __releases(lru_lock) __acquires(lru_lock) |
cd56a39a DC |
440 | { |
441 | struct xfs_dquot *dqp = container_of(item, | |
442 | struct xfs_dquot, q_lru); | |
443 | struct xfs_qm_isolate *isol = arg; | |
444 | ||
445 | if (!xfs_dqlock_nowait(dqp)) | |
446 | goto out_miss_busy; | |
447 | ||
448 | /* | |
449 | * This dquot has acquired a reference in the meantime remove it from | |
450 | * the freelist and try again. | |
451 | */ | |
452 | if (dqp->q_nrefs) { | |
453 | xfs_dqunlock(dqp); | |
ff6d6af2 | 454 | XFS_STATS_INC(dqp->q_mount, xs_qm_dqwants); |
cd56a39a DC |
455 | |
456 | trace_xfs_dqreclaim_want(dqp); | |
3f97b163 | 457 | list_lru_isolate(lru, &dqp->q_lru); |
ff6d6af2 | 458 | XFS_STATS_DEC(dqp->q_mount, xs_qm_dquot_unused); |
35163417 | 459 | return LRU_REMOVED; |
cd56a39a DC |
460 | } |
461 | ||
462 | /* | |
463 | * If the dquot is dirty, flush it. If it's already being flushed, just | |
464 | * skip it so there is time for the IO to complete before we try to | |
465 | * reclaim it again on the next LRU pass. | |
466 | */ | |
467 | if (!xfs_dqflock_nowait(dqp)) { | |
468 | xfs_dqunlock(dqp); | |
469 | goto out_miss_busy; | |
470 | } | |
471 | ||
472 | if (XFS_DQ_IS_DIRTY(dqp)) { | |
473 | struct xfs_buf *bp = NULL; | |
474 | int error; | |
475 | ||
476 | trace_xfs_dqreclaim_dirty(dqp); | |
477 | ||
478 | /* we have to drop the LRU lock to flush the dquot */ | |
479 | spin_unlock(lru_lock); | |
480 | ||
481 | error = xfs_qm_dqflush(dqp, &bp); | |
482 | if (error) { | |
483 | xfs_warn(dqp->q_mount, "%s: dquot %p flush failed", | |
484 | __func__, dqp); | |
485 | goto out_unlock_dirty; | |
486 | } | |
487 | ||
488 | xfs_buf_delwri_queue(bp, &isol->buffers); | |
489 | xfs_buf_relse(bp); | |
490 | goto out_unlock_dirty; | |
491 | } | |
492 | xfs_dqfunlock(dqp); | |
493 | ||
494 | /* | |
495 | * Prevent lookups now that we are past the point of no return. | |
496 | */ | |
497 | dqp->dq_flags |= XFS_DQ_FREEING; | |
498 | xfs_dqunlock(dqp); | |
499 | ||
500 | ASSERT(dqp->q_nrefs == 0); | |
3f97b163 | 501 | list_lru_isolate_move(lru, &dqp->q_lru, &isol->dispose); |
ff6d6af2 | 502 | XFS_STATS_DEC(dqp->q_mount, xs_qm_dquot_unused); |
cd56a39a | 503 | trace_xfs_dqreclaim_done(dqp); |
ff6d6af2 | 504 | XFS_STATS_INC(dqp->q_mount, xs_qm_dqreclaims); |
35163417 | 505 | return LRU_REMOVED; |
cd56a39a DC |
506 | |
507 | out_miss_busy: | |
508 | trace_xfs_dqreclaim_busy(dqp); | |
ff6d6af2 | 509 | XFS_STATS_INC(dqp->q_mount, xs_qm_dqreclaim_misses); |
35163417 | 510 | return LRU_SKIP; |
cd56a39a DC |
511 | |
512 | out_unlock_dirty: | |
513 | trace_xfs_dqreclaim_busy(dqp); | |
ff6d6af2 | 514 | XFS_STATS_INC(dqp->q_mount, xs_qm_dqreclaim_misses); |
35163417 DC |
515 | xfs_dqunlock(dqp); |
516 | spin_lock(lru_lock); | |
517 | return LRU_RETRY; | |
cd56a39a DC |
518 | } |
519 | ||
2f5b56f8 | 520 | static unsigned long |
cd56a39a DC |
521 | xfs_qm_shrink_scan( |
522 | struct shrinker *shrink, | |
523 | struct shrink_control *sc) | |
524 | { | |
525 | struct xfs_quotainfo *qi = container_of(shrink, | |
526 | struct xfs_quotainfo, qi_shrinker); | |
527 | struct xfs_qm_isolate isol; | |
2f5b56f8 | 528 | unsigned long freed; |
cd56a39a | 529 | int error; |
cd56a39a | 530 | |
d0164adc | 531 | if ((sc->gfp_mask & (__GFP_FS|__GFP_DIRECT_RECLAIM)) != (__GFP_FS|__GFP_DIRECT_RECLAIM)) |
cd56a39a DC |
532 | return 0; |
533 | ||
534 | INIT_LIST_HEAD(&isol.buffers); | |
535 | INIT_LIST_HEAD(&isol.dispose); | |
536 | ||
503c358c VD |
537 | freed = list_lru_shrink_walk(&qi->qi_lru, sc, |
538 | xfs_qm_dquot_isolate, &isol); | |
cd56a39a DC |
539 | |
540 | error = xfs_buf_delwri_submit(&isol.buffers); | |
541 | if (error) | |
542 | xfs_warn(NULL, "%s: dquot reclaim failed", __func__); | |
543 | ||
544 | while (!list_empty(&isol.dispose)) { | |
545 | struct xfs_dquot *dqp; | |
546 | ||
547 | dqp = list_first_entry(&isol.dispose, struct xfs_dquot, q_lru); | |
548 | list_del_init(&dqp->q_lru); | |
549 | xfs_qm_dqfree_one(dqp); | |
550 | } | |
551 | ||
552 | return freed; | |
553 | } | |
554 | ||
2f5b56f8 | 555 | static unsigned long |
cd56a39a DC |
556 | xfs_qm_shrink_count( |
557 | struct shrinker *shrink, | |
558 | struct shrink_control *sc) | |
559 | { | |
560 | struct xfs_quotainfo *qi = container_of(shrink, | |
561 | struct xfs_quotainfo, qi_shrinker); | |
562 | ||
503c358c | 563 | return list_lru_shrink_count(&qi->qi_lru, sc); |
cd56a39a DC |
564 | } |
565 | ||
be607946 CM |
566 | STATIC void |
567 | xfs_qm_set_defquota( | |
568 | xfs_mount_t *mp, | |
569 | uint type, | |
570 | xfs_quotainfo_t *qinf) | |
571 | { | |
572 | xfs_dquot_t *dqp; | |
573 | struct xfs_def_quota *defq; | |
574 | int error; | |
575 | ||
576 | error = xfs_qm_dqread(mp, 0, type, XFS_QMOPT_DOWARN, &dqp); | |
577 | ||
578 | if (!error) { | |
579 | xfs_disk_dquot_t *ddqp = &dqp->q_core; | |
580 | ||
581 | defq = xfs_get_defquota(dqp, qinf); | |
582 | ||
583 | /* | |
584 | * Timers and warnings have been already set, let's just set the | |
585 | * default limits for this quota type | |
586 | */ | |
587 | defq->bhardlimit = be64_to_cpu(ddqp->d_blk_hardlimit); | |
588 | defq->bsoftlimit = be64_to_cpu(ddqp->d_blk_softlimit); | |
589 | defq->ihardlimit = be64_to_cpu(ddqp->d_ino_hardlimit); | |
590 | defq->isoftlimit = be64_to_cpu(ddqp->d_ino_softlimit); | |
591 | defq->rtbhardlimit = be64_to_cpu(ddqp->d_rtb_hardlimit); | |
592 | defq->rtbsoftlimit = be64_to_cpu(ddqp->d_rtb_softlimit); | |
593 | xfs_qm_dqdestroy(dqp); | |
594 | } | |
595 | } | |
596 | ||
1da177e4 LT |
597 | /* |
598 | * This initializes all the quota information that's kept in the | |
599 | * mount structure | |
600 | */ | |
ba0f32d4 | 601 | STATIC int |
1da177e4 LT |
602 | xfs_qm_init_quotainfo( |
603 | xfs_mount_t *mp) | |
604 | { | |
605 | xfs_quotainfo_t *qinf; | |
606 | int error; | |
607 | xfs_dquot_t *dqp; | |
608 | ||
609 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
610 | ||
1da177e4 LT |
611 | qinf = mp->m_quotainfo = kmem_zalloc(sizeof(xfs_quotainfo_t), KM_SLEEP); |
612 | ||
2451337d | 613 | error = list_lru_init(&qinf->qi_lru); |
ee4eec47 DC |
614 | if (error) |
615 | goto out_free_qinf; | |
5ca302c8 | 616 | |
1da177e4 LT |
617 | /* |
618 | * See if quotainodes are setup, and if not, allocate them, | |
619 | * and change the superblock accordingly. | |
620 | */ | |
ee4eec47 DC |
621 | error = xfs_qm_init_quotainos(mp); |
622 | if (error) | |
623 | goto out_free_lru; | |
1da177e4 | 624 | |
9f920f11 CH |
625 | INIT_RADIX_TREE(&qinf->qi_uquota_tree, GFP_NOFS); |
626 | INIT_RADIX_TREE(&qinf->qi_gquota_tree, GFP_NOFS); | |
92f8ff73 | 627 | INIT_RADIX_TREE(&qinf->qi_pquota_tree, GFP_NOFS); |
9f920f11 CH |
628 | mutex_init(&qinf->qi_tree_lock); |
629 | ||
1da177e4 | 630 | /* mutex used to serialize quotaoffs */ |
794ee1ba | 631 | mutex_init(&qinf->qi_quotaofflock); |
1da177e4 LT |
632 | |
633 | /* Precalc some constants */ | |
634 | qinf->qi_dqchunklen = XFS_FSB_TO_BB(mp, XFS_DQUOT_CLUSTER_SIZE_FSB); | |
6ea94bb5 | 635 | qinf->qi_dqperchunk = xfs_calc_dquots_per_chunk(qinf->qi_dqchunklen); |
1da177e4 LT |
636 | |
637 | mp->m_qflags |= (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_CHKD); | |
638 | ||
639 | /* | |
640 | * We try to get the limits from the superuser's limits fields. | |
641 | * This is quite hacky, but it is standard quota practice. | |
7ae44407 | 642 | * |
7ae44407 CH |
643 | * Since we may not have done a quotacheck by this point, just read |
644 | * the dquot without attaching it to any hashtables or lists. | |
be607946 CM |
645 | * |
646 | * Timers and warnings are globally set by the first timer found in | |
647 | * user/group/proj quota types, otherwise a default value is used. | |
648 | * This should be split into different fields per quota type. | |
1da177e4 | 649 | */ |
7ae44407 CH |
650 | error = xfs_qm_dqread(mp, 0, |
651 | XFS_IS_UQUOTA_RUNNING(mp) ? XFS_DQ_USER : | |
652 | (XFS_IS_GQUOTA_RUNNING(mp) ? XFS_DQ_GROUP : | |
653 | XFS_DQ_PROJ), | |
654 | XFS_QMOPT_DOWARN, &dqp); | |
be607946 | 655 | |
7ae44407 | 656 | if (!error) { |
1da177e4 LT |
657 | xfs_disk_dquot_t *ddqp = &dqp->q_core; |
658 | ||
659 | /* | |
660 | * The warnings and timers set the grace period given to | |
661 | * a user or group before he or she can not perform any | |
662 | * more writing. If it is zero, a default is used. | |
663 | */ | |
1149d96a CH |
664 | qinf->qi_btimelimit = ddqp->d_btimer ? |
665 | be32_to_cpu(ddqp->d_btimer) : XFS_QM_BTIMELIMIT; | |
666 | qinf->qi_itimelimit = ddqp->d_itimer ? | |
667 | be32_to_cpu(ddqp->d_itimer) : XFS_QM_ITIMELIMIT; | |
668 | qinf->qi_rtbtimelimit = ddqp->d_rtbtimer ? | |
669 | be32_to_cpu(ddqp->d_rtbtimer) : XFS_QM_RTBTIMELIMIT; | |
670 | qinf->qi_bwarnlimit = ddqp->d_bwarns ? | |
671 | be16_to_cpu(ddqp->d_bwarns) : XFS_QM_BWARNLIMIT; | |
672 | qinf->qi_iwarnlimit = ddqp->d_iwarns ? | |
673 | be16_to_cpu(ddqp->d_iwarns) : XFS_QM_IWARNLIMIT; | |
674 | qinf->qi_rtbwarnlimit = ddqp->d_rtbwarns ? | |
675 | be16_to_cpu(ddqp->d_rtbwarns) : XFS_QM_RTBWARNLIMIT; | |
1da177e4 LT |
676 | xfs_qm_dqdestroy(dqp); |
677 | } else { | |
678 | qinf->qi_btimelimit = XFS_QM_BTIMELIMIT; | |
679 | qinf->qi_itimelimit = XFS_QM_ITIMELIMIT; | |
680 | qinf->qi_rtbtimelimit = XFS_QM_RTBTIMELIMIT; | |
681 | qinf->qi_bwarnlimit = XFS_QM_BWARNLIMIT; | |
682 | qinf->qi_iwarnlimit = XFS_QM_IWARNLIMIT; | |
06d10dd9 | 683 | qinf->qi_rtbwarnlimit = XFS_QM_RTBWARNLIMIT; |
1da177e4 LT |
684 | } |
685 | ||
be607946 CM |
686 | if (XFS_IS_UQUOTA_RUNNING(mp)) |
687 | xfs_qm_set_defquota(mp, XFS_DQ_USER, qinf); | |
688 | if (XFS_IS_GQUOTA_RUNNING(mp)) | |
689 | xfs_qm_set_defquota(mp, XFS_DQ_GROUP, qinf); | |
690 | if (XFS_IS_PQUOTA_RUNNING(mp)) | |
691 | xfs_qm_set_defquota(mp, XFS_DQ_PROJ, qinf); | |
692 | ||
cd56a39a DC |
693 | qinf->qi_shrinker.count_objects = xfs_qm_shrink_count; |
694 | qinf->qi_shrinker.scan_objects = xfs_qm_shrink_scan; | |
f8739c3c | 695 | qinf->qi_shrinker.seeks = DEFAULT_SEEKS; |
cd56a39a | 696 | qinf->qi_shrinker.flags = SHRINKER_NUMA_AWARE; |
f8739c3c | 697 | register_shrinker(&qinf->qi_shrinker); |
014c2544 | 698 | return 0; |
ee4eec47 DC |
699 | |
700 | out_free_lru: | |
701 | list_lru_destroy(&qinf->qi_lru); | |
702 | out_free_qinf: | |
703 | kmem_free(qinf); | |
704 | mp->m_quotainfo = NULL; | |
705 | return error; | |
1da177e4 LT |
706 | } |
707 | ||
708 | ||
709 | /* | |
710 | * Gets called when unmounting a filesystem or when all quotas get | |
711 | * turned off. | |
712 | * This purges the quota inodes, destroys locks and frees itself. | |
713 | */ | |
714 | void | |
715 | xfs_qm_destroy_quotainfo( | |
716 | xfs_mount_t *mp) | |
717 | { | |
718 | xfs_quotainfo_t *qi; | |
719 | ||
720 | qi = mp->m_quotainfo; | |
721 | ASSERT(qi != NULL); | |
1da177e4 | 722 | |
f8739c3c | 723 | unregister_shrinker(&qi->qi_shrinker); |
f5e1dd34 | 724 | list_lru_destroy(&qi->qi_lru); |
f8739c3c | 725 | |
1da177e4 | 726 | if (qi->qi_uquotaip) { |
26cc0021 | 727 | IRELE(qi->qi_uquotaip); |
1da177e4 LT |
728 | qi->qi_uquotaip = NULL; /* paranoia */ |
729 | } | |
730 | if (qi->qi_gquotaip) { | |
26cc0021 | 731 | IRELE(qi->qi_gquotaip); |
1da177e4 LT |
732 | qi->qi_gquotaip = NULL; |
733 | } | |
92f8ff73 CS |
734 | if (qi->qi_pquotaip) { |
735 | IRELE(qi->qi_pquotaip); | |
736 | qi->qi_pquotaip = NULL; | |
737 | } | |
1da177e4 | 738 | mutex_destroy(&qi->qi_quotaofflock); |
f0e2d93c | 739 | kmem_free(qi); |
1da177e4 LT |
740 | mp->m_quotainfo = NULL; |
741 | } | |
742 | ||
1da177e4 LT |
743 | /* |
744 | * Create an inode and return with a reference already taken, but unlocked | |
745 | * This is how we create quota inodes | |
746 | */ | |
747 | STATIC int | |
748 | xfs_qm_qino_alloc( | |
749 | xfs_mount_t *mp, | |
750 | xfs_inode_t **ip, | |
1da177e4 LT |
751 | uint flags) |
752 | { | |
753 | xfs_trans_t *tp; | |
754 | int error; | |
1da177e4 | 755 | int committed; |
58c90473 | 756 | bool need_alloc = true; |
1da177e4 | 757 | |
d892d586 CS |
758 | *ip = NULL; |
759 | /* | |
760 | * With superblock that doesn't have separate pquotino, we | |
761 | * share an inode between gquota and pquota. If the on-disk | |
762 | * superblock has GQUOTA and the filesystem is now mounted | |
763 | * with PQUOTA, just use sb_gquotino for sb_pquotino and | |
764 | * vice-versa. | |
765 | */ | |
766 | if (!xfs_sb_version_has_pquotino(&mp->m_sb) && | |
767 | (flags & (XFS_QMOPT_PQUOTA|XFS_QMOPT_GQUOTA))) { | |
768 | xfs_ino_t ino = NULLFSINO; | |
769 | ||
770 | if ((flags & XFS_QMOPT_PQUOTA) && | |
771 | (mp->m_sb.sb_gquotino != NULLFSINO)) { | |
772 | ino = mp->m_sb.sb_gquotino; | |
773 | ASSERT(mp->m_sb.sb_pquotino == NULLFSINO); | |
774 | } else if ((flags & XFS_QMOPT_GQUOTA) && | |
775 | (mp->m_sb.sb_pquotino != NULLFSINO)) { | |
776 | ino = mp->m_sb.sb_pquotino; | |
777 | ASSERT(mp->m_sb.sb_gquotino == NULLFSINO); | |
778 | } | |
779 | if (ino != NULLFSINO) { | |
780 | error = xfs_iget(mp, NULL, ino, 0, 0, ip); | |
781 | if (error) | |
782 | return error; | |
783 | mp->m_sb.sb_gquotino = NULLFSINO; | |
784 | mp->m_sb.sb_pquotino = NULLFSINO; | |
58c90473 | 785 | need_alloc = false; |
d892d586 CS |
786 | } |
787 | } | |
788 | ||
253f4911 CH |
789 | error = xfs_trans_alloc(mp, &M_RES(mp)->tr_create, |
790 | XFS_QM_QINOCREATE_SPACE_RES(mp), 0, 0, &tp); | |
791 | if (error) | |
014c2544 | 792 | return error; |
1da177e4 | 793 | |
58c90473 | 794 | if (need_alloc) { |
d892d586 CS |
795 | error = xfs_dir_ialloc(&tp, NULL, S_IFREG, 1, 0, 0, 1, ip, |
796 | &committed); | |
797 | if (error) { | |
4906e215 | 798 | xfs_trans_cancel(tp); |
d892d586 CS |
799 | return error; |
800 | } | |
1da177e4 LT |
801 | } |
802 | ||
1da177e4 LT |
803 | /* |
804 | * Make the changes in the superblock, and log those too. | |
805 | * sbfields arg may contain fields other than *QUOTINO; | |
806 | * VERSIONNUM for example. | |
807 | */ | |
3685c2a1 | 808 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 809 | if (flags & XFS_QMOPT_SBVERSION) { |
62118709 | 810 | ASSERT(!xfs_sb_version_hasquota(&mp->m_sb)); |
1da177e4 | 811 | |
62118709 | 812 | xfs_sb_version_addquota(&mp->m_sb); |
1da177e4 LT |
813 | mp->m_sb.sb_uquotino = NULLFSINO; |
814 | mp->m_sb.sb_gquotino = NULLFSINO; | |
d892d586 | 815 | mp->m_sb.sb_pquotino = NULLFSINO; |
1da177e4 | 816 | |
d892d586 CS |
817 | /* qflags will get updated fully _after_ quotacheck */ |
818 | mp->m_sb.sb_qflags = mp->m_qflags & XFS_ALL_QUOTA_ACCT; | |
1da177e4 LT |
819 | } |
820 | if (flags & XFS_QMOPT_UQUOTA) | |
821 | mp->m_sb.sb_uquotino = (*ip)->i_ino; | |
d892d586 | 822 | else if (flags & XFS_QMOPT_GQUOTA) |
1da177e4 | 823 | mp->m_sb.sb_gquotino = (*ip)->i_ino; |
d892d586 CS |
824 | else |
825 | mp->m_sb.sb_pquotino = (*ip)->i_ino; | |
3685c2a1 | 826 | spin_unlock(&mp->m_sb_lock); |
61e63ecb | 827 | xfs_log_sb(tp); |
1da177e4 | 828 | |
70393313 | 829 | error = xfs_trans_commit(tp); |
58c90473 DC |
830 | if (error) { |
831 | ASSERT(XFS_FORCED_SHUTDOWN(mp)); | |
53487786 | 832 | xfs_alert(mp, "%s failed (error %d)!", __func__, error); |
1da177e4 | 833 | } |
58c90473 DC |
834 | if (need_alloc) |
835 | xfs_finish_inode_setup(*ip); | |
836 | return error; | |
1da177e4 LT |
837 | } |
838 | ||
839 | ||
5b139738 | 840 | STATIC void |
1da177e4 LT |
841 | xfs_qm_reset_dqcounts( |
842 | xfs_mount_t *mp, | |
843 | xfs_buf_t *bp, | |
844 | xfs_dqid_t id, | |
845 | uint type) | |
846 | { | |
6fcdc59d | 847 | struct xfs_dqblk *dqb; |
1da177e4 LT |
848 | int j; |
849 | ||
0b1b213f CH |
850 | trace_xfs_reset_dqcounts(bp, _RET_IP_); |
851 | ||
1da177e4 LT |
852 | /* |
853 | * Reset all counters and timers. They'll be | |
854 | * started afresh by xfs_qm_quotacheck. | |
855 | */ | |
856 | #ifdef DEBUG | |
90115407 ES |
857 | j = (int)XFS_FSB_TO_B(mp, XFS_DQUOT_CLUSTER_SIZE_FSB) / |
858 | sizeof(xfs_dqblk_t); | |
8a7b8a89 | 859 | ASSERT(mp->m_quotainfo->qi_dqperchunk == j); |
1da177e4 | 860 | #endif |
6fcdc59d | 861 | dqb = bp->b_addr; |
8a7b8a89 | 862 | for (j = 0; j < mp->m_quotainfo->qi_dqperchunk; j++) { |
6fcdc59d DC |
863 | struct xfs_disk_dquot *ddq; |
864 | ||
865 | ddq = (struct xfs_disk_dquot *)&dqb[j]; | |
866 | ||
1da177e4 LT |
867 | /* |
868 | * Do a sanity check, and if needed, repair the dqblk. Don't | |
869 | * output any warnings because it's perfectly possible to | |
9aede1d8 | 870 | * find uninitialised dquot blks. See comment in xfs_dqcheck. |
1da177e4 | 871 | */ |
9aede1d8 DC |
872 | xfs_dqcheck(mp, ddq, id+j, type, XFS_QMOPT_DQREPAIR, |
873 | "xfs_quotacheck"); | |
dfcc70a8 JK |
874 | /* |
875 | * Reset type in case we are reusing group quota file for | |
876 | * project quotas or vice versa | |
877 | */ | |
878 | ddq->d_flags = type; | |
1149d96a CH |
879 | ddq->d_bcount = 0; |
880 | ddq->d_icount = 0; | |
881 | ddq->d_rtbcount = 0; | |
882 | ddq->d_btimer = 0; | |
883 | ddq->d_itimer = 0; | |
884 | ddq->d_rtbtimer = 0; | |
885 | ddq->d_bwarns = 0; | |
886 | ddq->d_iwarns = 0; | |
887 | ddq->d_rtbwarns = 0; | |
6fcdc59d DC |
888 | |
889 | if (xfs_sb_version_hascrc(&mp->m_sb)) { | |
890 | xfs_update_cksum((char *)&dqb[j], | |
891 | sizeof(struct xfs_dqblk), | |
892 | XFS_DQUOT_CRC_OFF); | |
893 | } | |
1da177e4 | 894 | } |
1da177e4 LT |
895 | } |
896 | ||
897 | STATIC int | |
898 | xfs_qm_dqiter_bufs( | |
43ff2122 CH |
899 | struct xfs_mount *mp, |
900 | xfs_dqid_t firstid, | |
901 | xfs_fsblock_t bno, | |
902 | xfs_filblks_t blkcnt, | |
903 | uint flags, | |
904 | struct list_head *buffer_list) | |
1da177e4 | 905 | { |
43ff2122 CH |
906 | struct xfs_buf *bp; |
907 | int error; | |
908 | int type; | |
1da177e4 LT |
909 | |
910 | ASSERT(blkcnt > 0); | |
c8ad20ff NS |
911 | type = flags & XFS_QMOPT_UQUOTA ? XFS_DQ_USER : |
912 | (flags & XFS_QMOPT_PQUOTA ? XFS_DQ_PROJ : XFS_DQ_GROUP); | |
1da177e4 LT |
913 | error = 0; |
914 | ||
915 | /* | |
916 | * Blkcnt arg can be a very big number, and might even be | |
917 | * larger than the log itself. So, we have to break it up into | |
918 | * manageable-sized transactions. | |
919 | * Note that we don't start a permanent transaction here; we might | |
920 | * not be able to get a log reservation for the whole thing up front, | |
921 | * and we don't really care to either, because we just discard | |
922 | * everything if we were to crash in the middle of this loop. | |
923 | */ | |
924 | while (blkcnt--) { | |
925 | error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, | |
926 | XFS_FSB_TO_DADDR(mp, bno), | |
c6319198 | 927 | mp->m_quotainfo->qi_dqchunklen, 0, &bp, |
1813dd64 | 928 | &xfs_dquot_buf_ops); |
1da177e4 | 929 | |
3fe58f30 | 930 | /* |
6fcdc59d DC |
931 | * CRC and validation errors will return a EFSCORRUPTED here. If |
932 | * this occurs, re-read without CRC validation so that we can | |
933 | * repair the damage via xfs_qm_reset_dqcounts(). This process | |
934 | * will leave a trace in the log indicating corruption has | |
935 | * been detected. | |
3fe58f30 | 936 | */ |
2451337d | 937 | if (error == -EFSCORRUPTED) { |
6fcdc59d DC |
938 | error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, |
939 | XFS_FSB_TO_DADDR(mp, bno), | |
940 | mp->m_quotainfo->qi_dqchunklen, 0, &bp, | |
941 | NULL); | |
942 | } | |
943 | ||
944 | if (error) | |
945 | break; | |
946 | ||
5fd364fe DC |
947 | /* |
948 | * A corrupt buffer might not have a verifier attached, so | |
949 | * make sure we have the correct one attached before writeback | |
950 | * occurs. | |
951 | */ | |
952 | bp->b_ops = &xfs_dquot_buf_ops; | |
5b139738 | 953 | xfs_qm_reset_dqcounts(mp, bp, firstid, type); |
43ff2122 | 954 | xfs_buf_delwri_queue(bp, buffer_list); |
61551f1e | 955 | xfs_buf_relse(bp); |
6fcdc59d DC |
956 | |
957 | /* goto the next block. */ | |
1da177e4 | 958 | bno++; |
8a7b8a89 | 959 | firstid += mp->m_quotainfo->qi_dqperchunk; |
1da177e4 | 960 | } |
43ff2122 | 961 | |
014c2544 | 962 | return error; |
1da177e4 LT |
963 | } |
964 | ||
965 | /* | |
c8ad20ff | 966 | * Iterate over all allocated USR/GRP/PRJ dquots in the system, calling a |
1da177e4 LT |
967 | * caller supplied function for every chunk of dquots that we find. |
968 | */ | |
969 | STATIC int | |
970 | xfs_qm_dqiterate( | |
43ff2122 CH |
971 | struct xfs_mount *mp, |
972 | struct xfs_inode *qip, | |
973 | uint flags, | |
974 | struct list_head *buffer_list) | |
1da177e4 | 975 | { |
43ff2122 | 976 | struct xfs_bmbt_irec *map; |
1da177e4 LT |
977 | int i, nmaps; /* number of map entries */ |
978 | int error; /* return value */ | |
979 | xfs_fileoff_t lblkno; | |
980 | xfs_filblks_t maxlblkcnt; | |
981 | xfs_dqid_t firstid; | |
982 | xfs_fsblock_t rablkno; | |
983 | xfs_filblks_t rablkcnt; | |
984 | ||
985 | error = 0; | |
986 | /* | |
c41564b5 | 987 | * This looks racy, but we can't keep an inode lock across a |
1da177e4 LT |
988 | * trans_reserve. But, this gets called during quotacheck, and that |
989 | * happens only at mount time which is single threaded. | |
990 | */ | |
991 | if (qip->i_d.di_nblocks == 0) | |
014c2544 | 992 | return 0; |
1da177e4 LT |
993 | |
994 | map = kmem_alloc(XFS_DQITER_MAP_SIZE * sizeof(*map), KM_SLEEP); | |
995 | ||
996 | lblkno = 0; | |
32972383 | 997 | maxlblkcnt = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes); |
1da177e4 | 998 | do { |
da51d32d CH |
999 | uint lock_mode; |
1000 | ||
1da177e4 LT |
1001 | nmaps = XFS_DQITER_MAP_SIZE; |
1002 | /* | |
1003 | * We aren't changing the inode itself. Just changing | |
1004 | * some of its data. No new blocks are added here, and | |
1005 | * the inode is never added to the transaction. | |
1006 | */ | |
da51d32d | 1007 | lock_mode = xfs_ilock_data_map_shared(qip); |
5c8ed202 DC |
1008 | error = xfs_bmapi_read(qip, lblkno, maxlblkcnt - lblkno, |
1009 | map, &nmaps, 0); | |
da51d32d | 1010 | xfs_iunlock(qip, lock_mode); |
1da177e4 LT |
1011 | if (error) |
1012 | break; | |
1013 | ||
1014 | ASSERT(nmaps <= XFS_DQITER_MAP_SIZE); | |
1015 | for (i = 0; i < nmaps; i++) { | |
1016 | ASSERT(map[i].br_startblock != DELAYSTARTBLOCK); | |
1017 | ASSERT(map[i].br_blockcount); | |
1018 | ||
1019 | ||
1020 | lblkno += map[i].br_blockcount; | |
1021 | ||
1022 | if (map[i].br_startblock == HOLESTARTBLOCK) | |
1023 | continue; | |
1024 | ||
1025 | firstid = (xfs_dqid_t) map[i].br_startoff * | |
8a7b8a89 | 1026 | mp->m_quotainfo->qi_dqperchunk; |
1da177e4 LT |
1027 | /* |
1028 | * Do a read-ahead on the next extent. | |
1029 | */ | |
1030 | if ((i+1 < nmaps) && | |
1031 | (map[i+1].br_startblock != HOLESTARTBLOCK)) { | |
1032 | rablkcnt = map[i+1].br_blockcount; | |
1033 | rablkno = map[i+1].br_startblock; | |
1034 | while (rablkcnt--) { | |
1a1a3e97 | 1035 | xfs_buf_readahead(mp->m_ddev_targp, |
1da177e4 | 1036 | XFS_FSB_TO_DADDR(mp, rablkno), |
c3f8fc73 | 1037 | mp->m_quotainfo->qi_dqchunklen, |
5fd364fe | 1038 | &xfs_dquot_buf_ops); |
1da177e4 LT |
1039 | rablkno++; |
1040 | } | |
1041 | } | |
1042 | /* | |
1043 | * Iterate thru all the blks in the extent and | |
1044 | * reset the counters of all the dquots inside them. | |
1045 | */ | |
43ff2122 CH |
1046 | error = xfs_qm_dqiter_bufs(mp, firstid, |
1047 | map[i].br_startblock, | |
1048 | map[i].br_blockcount, | |
1049 | flags, buffer_list); | |
1050 | if (error) | |
1051 | goto out; | |
1da177e4 | 1052 | } |
1da177e4 LT |
1053 | } while (nmaps > 0); |
1054 | ||
43ff2122 | 1055 | out: |
f0e2d93c | 1056 | kmem_free(map); |
014c2544 | 1057 | return error; |
1da177e4 LT |
1058 | } |
1059 | ||
1060 | /* | |
1061 | * Called by dqusage_adjust in doing a quotacheck. | |
52fda114 CH |
1062 | * |
1063 | * Given the inode, and a dquot id this updates both the incore dqout as well | |
1064 | * as the buffer copy. This is so that once the quotacheck is done, we can | |
1065 | * just log all the buffers, as opposed to logging numerous updates to | |
1066 | * individual dquots. | |
1da177e4 | 1067 | */ |
52fda114 | 1068 | STATIC int |
1da177e4 | 1069 | xfs_qm_quotacheck_dqadjust( |
52fda114 CH |
1070 | struct xfs_inode *ip, |
1071 | xfs_dqid_t id, | |
1072 | uint type, | |
1da177e4 LT |
1073 | xfs_qcnt_t nblks, |
1074 | xfs_qcnt_t rtblks) | |
1075 | { | |
52fda114 CH |
1076 | struct xfs_mount *mp = ip->i_mount; |
1077 | struct xfs_dquot *dqp; | |
1078 | int error; | |
1079 | ||
1080 | error = xfs_qm_dqget(mp, ip, id, type, | |
1081 | XFS_QMOPT_DQALLOC | XFS_QMOPT_DOWARN, &dqp); | |
1082 | if (error) { | |
1083 | /* | |
1084 | * Shouldn't be able to turn off quotas here. | |
1085 | */ | |
2451337d DC |
1086 | ASSERT(error != -ESRCH); |
1087 | ASSERT(error != -ENOENT); | |
52fda114 CH |
1088 | return error; |
1089 | } | |
0b1b213f CH |
1090 | |
1091 | trace_xfs_dqadjust(dqp); | |
1092 | ||
1da177e4 LT |
1093 | /* |
1094 | * Adjust the inode count and the block count to reflect this inode's | |
1095 | * resource usage. | |
1096 | */ | |
413d57c9 | 1097 | be64_add_cpu(&dqp->q_core.d_icount, 1); |
1da177e4 LT |
1098 | dqp->q_res_icount++; |
1099 | if (nblks) { | |
413d57c9 | 1100 | be64_add_cpu(&dqp->q_core.d_bcount, nblks); |
1da177e4 LT |
1101 | dqp->q_res_bcount += nblks; |
1102 | } | |
1103 | if (rtblks) { | |
413d57c9 | 1104 | be64_add_cpu(&dqp->q_core.d_rtbcount, rtblks); |
1da177e4 LT |
1105 | dqp->q_res_rtbcount += rtblks; |
1106 | } | |
1107 | ||
1108 | /* | |
1109 | * Set default limits, adjust timers (since we changed usages) | |
191f8488 CH |
1110 | * |
1111 | * There are no timers for the default values set in the root dquot. | |
1da177e4 | 1112 | */ |
191f8488 | 1113 | if (dqp->q_core.d_id) { |
4b6eae2e | 1114 | xfs_qm_adjust_dqlimits(mp, dqp); |
52fda114 | 1115 | xfs_qm_adjust_dqtimers(mp, &dqp->q_core); |
1da177e4 LT |
1116 | } |
1117 | ||
1118 | dqp->dq_flags |= XFS_DQ_DIRTY; | |
52fda114 CH |
1119 | xfs_qm_dqput(dqp); |
1120 | return 0; | |
1da177e4 LT |
1121 | } |
1122 | ||
1123 | STATIC int | |
1124 | xfs_qm_get_rtblks( | |
1125 | xfs_inode_t *ip, | |
1126 | xfs_qcnt_t *O_rtblks) | |
1127 | { | |
1128 | xfs_filblks_t rtblks; /* total rt blks */ | |
4eea22f0 | 1129 | xfs_extnum_t idx; /* extent record index */ |
1da177e4 LT |
1130 | xfs_ifork_t *ifp; /* inode fork pointer */ |
1131 | xfs_extnum_t nextents; /* number of extent entries */ | |
1da177e4 LT |
1132 | int error; |
1133 | ||
1134 | ASSERT(XFS_IS_REALTIME_INODE(ip)); | |
1135 | ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK); | |
1136 | if (!(ifp->if_flags & XFS_IFEXTENTS)) { | |
1137 | if ((error = xfs_iread_extents(NULL, ip, XFS_DATA_FORK))) | |
014c2544 | 1138 | return error; |
1da177e4 LT |
1139 | } |
1140 | rtblks = 0; | |
5d829300 | 1141 | nextents = xfs_iext_count(ifp); |
a6f64d4a CH |
1142 | for (idx = 0; idx < nextents; idx++) |
1143 | rtblks += xfs_bmbt_get_blockcount(xfs_iext_get_ext(ifp, idx)); | |
1da177e4 | 1144 | *O_rtblks = (xfs_qcnt_t)rtblks; |
014c2544 | 1145 | return 0; |
1da177e4 LT |
1146 | } |
1147 | ||
1148 | /* | |
1149 | * callback routine supplied to bulkstat(). Given an inumber, find its | |
1150 | * dquots and update them to account for resources taken by that inode. | |
1151 | */ | |
1152 | /* ARGSUSED */ | |
1153 | STATIC int | |
1154 | xfs_qm_dqusage_adjust( | |
1155 | xfs_mount_t *mp, /* mount point for filesystem */ | |
1156 | xfs_ino_t ino, /* inode number to get data for */ | |
1157 | void __user *buffer, /* not used */ | |
1158 | int ubsize, /* not used */ | |
1da177e4 | 1159 | int *ubused, /* not used */ |
1da177e4 LT |
1160 | int *res) /* result code value */ |
1161 | { | |
1162 | xfs_inode_t *ip; | |
52fda114 | 1163 | xfs_qcnt_t nblks, rtblks = 0; |
1da177e4 LT |
1164 | int error; |
1165 | ||
1166 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
1167 | ||
1168 | /* | |
1169 | * rootino must have its resources accounted for, not so with the quota | |
1170 | * inodes. | |
1171 | */ | |
9cad19d2 | 1172 | if (xfs_is_quota_inode(&mp->m_sb, ino)) { |
1da177e4 | 1173 | *res = BULKSTAT_RV_NOTHING; |
2451337d | 1174 | return -EINVAL; |
1da177e4 LT |
1175 | } |
1176 | ||
1177 | /* | |
1178 | * We don't _need_ to take the ilock EXCL. However, the xfs_qm_dqget | |
1179 | * interface expects the inode to be exclusively locked because that's | |
1180 | * the case in all other instances. It's OK that we do this because | |
1181 | * quotacheck is done only at mount time. | |
1182 | */ | |
e0d76fa4 BF |
1183 | error = xfs_iget(mp, NULL, ino, XFS_IGET_DONTCACHE, XFS_ILOCK_EXCL, |
1184 | &ip); | |
52fda114 | 1185 | if (error) { |
1da177e4 | 1186 | *res = BULKSTAT_RV_NOTHING; |
014c2544 | 1187 | return error; |
1da177e4 LT |
1188 | } |
1189 | ||
52fda114 | 1190 | ASSERT(ip->i_delayed_blks == 0); |
1da177e4 | 1191 | |
52fda114 | 1192 | if (XFS_IS_REALTIME_INODE(ip)) { |
1da177e4 LT |
1193 | /* |
1194 | * Walk thru the extent list and count the realtime blocks. | |
1195 | */ | |
52fda114 CH |
1196 | error = xfs_qm_get_rtblks(ip, &rtblks); |
1197 | if (error) | |
1198 | goto error0; | |
1da177e4 | 1199 | } |
1da177e4 | 1200 | |
52fda114 | 1201 | nblks = (xfs_qcnt_t)ip->i_d.di_nblocks - rtblks; |
1da177e4 LT |
1202 | |
1203 | /* | |
1204 | * Add the (disk blocks and inode) resources occupied by this | |
1205 | * inode to its dquots. We do this adjustment in the incore dquot, | |
1206 | * and also copy the changes to its buffer. | |
1207 | * We don't care about putting these changes in a transaction | |
1208 | * envelope because if we crash in the middle of a 'quotacheck' | |
1209 | * we have to start from the beginning anyway. | |
1210 | * Once we're done, we'll log all the dquot bufs. | |
1211 | * | |
c41564b5 | 1212 | * The *QUOTA_ON checks below may look pretty racy, but quotachecks |
1da177e4 LT |
1213 | * and quotaoffs don't race. (Quotachecks happen at mount time only). |
1214 | */ | |
1215 | if (XFS_IS_UQUOTA_ON(mp)) { | |
52fda114 CH |
1216 | error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_uid, |
1217 | XFS_DQ_USER, nblks, rtblks); | |
1218 | if (error) | |
1219 | goto error0; | |
1da177e4 | 1220 | } |
52fda114 CH |
1221 | |
1222 | if (XFS_IS_GQUOTA_ON(mp)) { | |
1223 | error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_gid, | |
1224 | XFS_DQ_GROUP, nblks, rtblks); | |
1225 | if (error) | |
1226 | goto error0; | |
1da177e4 | 1227 | } |
1da177e4 | 1228 | |
52fda114 | 1229 | if (XFS_IS_PQUOTA_ON(mp)) { |
6743099c | 1230 | error = xfs_qm_quotacheck_dqadjust(ip, xfs_get_projid(ip), |
52fda114 CH |
1231 | XFS_DQ_PROJ, nblks, rtblks); |
1232 | if (error) | |
1233 | goto error0; | |
1234 | } | |
1235 | ||
1236 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1237 | IRELE(ip); | |
1da177e4 | 1238 | *res = BULKSTAT_RV_DIDONE; |
014c2544 | 1239 | return 0; |
52fda114 CH |
1240 | |
1241 | error0: | |
1242 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1243 | IRELE(ip); | |
1244 | *res = BULKSTAT_RV_GIVEUP; | |
1245 | return error; | |
1da177e4 LT |
1246 | } |
1247 | ||
b84a3a96 CH |
1248 | STATIC int |
1249 | xfs_qm_flush_one( | |
43ff2122 CH |
1250 | struct xfs_dquot *dqp, |
1251 | void *data) | |
b84a3a96 | 1252 | { |
7912e7fe | 1253 | struct xfs_mount *mp = dqp->q_mount; |
43ff2122 | 1254 | struct list_head *buffer_list = data; |
fe7257fd | 1255 | struct xfs_buf *bp = NULL; |
b84a3a96 CH |
1256 | int error = 0; |
1257 | ||
1258 | xfs_dqlock(dqp); | |
1259 | if (dqp->dq_flags & XFS_DQ_FREEING) | |
1260 | goto out_unlock; | |
1261 | if (!XFS_DQ_IS_DIRTY(dqp)) | |
1262 | goto out_unlock; | |
1263 | ||
7912e7fe BF |
1264 | /* |
1265 | * The only way the dquot is already flush locked by the time quotacheck | |
1266 | * gets here is if reclaim flushed it before the dqadjust walk dirtied | |
1267 | * it for the final time. Quotacheck collects all dquot bufs in the | |
1268 | * local delwri queue before dquots are dirtied, so reclaim can't have | |
1269 | * possibly queued it for I/O. The only way out is to push the buffer to | |
1270 | * cycle the flush lock. | |
1271 | */ | |
1272 | if (!xfs_dqflock_nowait(dqp)) { | |
1273 | /* buf is pinned in-core by delwri list */ | |
1274 | DEFINE_SINGLE_BUF_MAP(map, dqp->q_blkno, | |
1275 | mp->m_quotainfo->qi_dqchunklen); | |
1276 | bp = _xfs_buf_find(mp->m_ddev_targp, &map, 1, 0, NULL); | |
1277 | if (!bp) { | |
1278 | error = -EINVAL; | |
1279 | goto out_unlock; | |
1280 | } | |
1281 | xfs_buf_unlock(bp); | |
1282 | ||
1283 | xfs_buf_delwri_pushbuf(bp, buffer_list); | |
1284 | xfs_buf_rele(bp); | |
1285 | ||
1286 | error = -EAGAIN; | |
1287 | goto out_unlock; | |
1288 | } | |
1289 | ||
fe7257fd CH |
1290 | error = xfs_qm_dqflush(dqp, &bp); |
1291 | if (error) | |
1292 | goto out_unlock; | |
b84a3a96 | 1293 | |
43ff2122 | 1294 | xfs_buf_delwri_queue(bp, buffer_list); |
fe7257fd | 1295 | xfs_buf_relse(bp); |
b84a3a96 CH |
1296 | out_unlock: |
1297 | xfs_dqunlock(dqp); | |
1298 | return error; | |
1299 | } | |
1300 | ||
1da177e4 LT |
1301 | /* |
1302 | * Walk thru all the filesystem inodes and construct a consistent view | |
1303 | * of the disk quota world. If the quotacheck fails, disable quotas. | |
1304 | */ | |
eb866bbf | 1305 | STATIC int |
1da177e4 LT |
1306 | xfs_qm_quotacheck( |
1307 | xfs_mount_t *mp) | |
1308 | { | |
113a5683 CS |
1309 | int done, count, error, error2; |
1310 | xfs_ino_t lastino; | |
1311 | size_t structsz; | |
1312 | uint flags; | |
1313 | LIST_HEAD (buffer_list); | |
1314 | struct xfs_inode *uip = mp->m_quotainfo->qi_uquotaip; | |
1315 | struct xfs_inode *gip = mp->m_quotainfo->qi_gquotaip; | |
92f8ff73 | 1316 | struct xfs_inode *pip = mp->m_quotainfo->qi_pquotaip; |
1da177e4 LT |
1317 | |
1318 | count = INT_MAX; | |
1319 | structsz = 1; | |
1320 | lastino = 0; | |
1321 | flags = 0; | |
1322 | ||
92f8ff73 | 1323 | ASSERT(uip || gip || pip); |
1da177e4 LT |
1324 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1325 | ||
0b932ccc | 1326 | xfs_notice(mp, "Quotacheck needed: Please wait."); |
1da177e4 LT |
1327 | |
1328 | /* | |
c8ad20ff | 1329 | * First we go thru all the dquots on disk, USR and GRP/PRJ, and reset |
1da177e4 LT |
1330 | * their counters to zero. We need a clean slate. |
1331 | * We don't log our changes till later. | |
1332 | */ | |
8a7b8a89 | 1333 | if (uip) { |
43ff2122 CH |
1334 | error = xfs_qm_dqiterate(mp, uip, XFS_QMOPT_UQUOTA, |
1335 | &buffer_list); | |
8a7b8a89 | 1336 | if (error) |
1da177e4 LT |
1337 | goto error_return; |
1338 | flags |= XFS_UQUOTA_CHKD; | |
1339 | } | |
1340 | ||
8a7b8a89 | 1341 | if (gip) { |
92f8ff73 | 1342 | error = xfs_qm_dqiterate(mp, gip, XFS_QMOPT_GQUOTA, |
43ff2122 | 1343 | &buffer_list); |
8a7b8a89 | 1344 | if (error) |
1da177e4 | 1345 | goto error_return; |
92f8ff73 CS |
1346 | flags |= XFS_GQUOTA_CHKD; |
1347 | } | |
1348 | ||
1349 | if (pip) { | |
1350 | error = xfs_qm_dqiterate(mp, pip, XFS_QMOPT_PQUOTA, | |
1351 | &buffer_list); | |
1352 | if (error) | |
1353 | goto error_return; | |
1354 | flags |= XFS_PQUOTA_CHKD; | |
1da177e4 LT |
1355 | } |
1356 | ||
1357 | do { | |
1358 | /* | |
1359 | * Iterate thru all the inodes in the file system, | |
1360 | * adjusting the corresponding dquot counters in core. | |
1361 | */ | |
7dce11db CH |
1362 | error = xfs_bulkstat(mp, &lastino, &count, |
1363 | xfs_qm_dqusage_adjust, | |
1364 | structsz, NULL, &done); | |
1365 | if (error) | |
1da177e4 LT |
1366 | break; |
1367 | ||
7dce11db | 1368 | } while (!done); |
1da177e4 | 1369 | |
4b8879df | 1370 | /* |
b84a3a96 CH |
1371 | * We've made all the changes that we need to make incore. Flush them |
1372 | * down to disk buffers if everything was updated successfully. | |
4b8879df | 1373 | */ |
43ff2122 CH |
1374 | if (XFS_IS_UQUOTA_ON(mp)) { |
1375 | error = xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_flush_one, | |
1376 | &buffer_list); | |
1377 | } | |
b84a3a96 | 1378 | if (XFS_IS_GQUOTA_ON(mp)) { |
43ff2122 CH |
1379 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_flush_one, |
1380 | &buffer_list); | |
b84a3a96 CH |
1381 | if (!error) |
1382 | error = error2; | |
1383 | } | |
1384 | if (XFS_IS_PQUOTA_ON(mp)) { | |
43ff2122 CH |
1385 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_flush_one, |
1386 | &buffer_list); | |
b84a3a96 CH |
1387 | if (!error) |
1388 | error = error2; | |
1389 | } | |
4b8879df | 1390 | |
43ff2122 CH |
1391 | error2 = xfs_buf_delwri_submit(&buffer_list); |
1392 | if (!error) | |
1393 | error = error2; | |
1394 | ||
1da177e4 LT |
1395 | /* |
1396 | * We can get this error if we couldn't do a dquot allocation inside | |
1397 | * xfs_qm_dqusage_adjust (via bulkstat). We don't care about the | |
1398 | * dirty dquots that might be cached, we just want to get rid of them | |
1399 | * and turn quotaoff. The dquots won't be attached to any of the inodes | |
1400 | * at this point (because we intentionally didn't in dqget_noattach). | |
1401 | */ | |
1402 | if (error) { | |
8112e9dc | 1403 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
1da177e4 LT |
1404 | goto error_return; |
1405 | } | |
1da177e4 | 1406 | |
1da177e4 LT |
1407 | /* |
1408 | * If one type of quotas is off, then it will lose its | |
1409 | * quotachecked status, since we won't be doing accounting for | |
1410 | * that type anymore. | |
1411 | */ | |
4177af3a | 1412 | mp->m_qflags &= ~XFS_ALL_QUOTA_CHKD; |
1da177e4 LT |
1413 | mp->m_qflags |= flags; |
1414 | ||
1da177e4 | 1415 | error_return: |
20e8a063 | 1416 | xfs_buf_delwri_cancel(&buffer_list); |
43ff2122 | 1417 | |
1da177e4 | 1418 | if (error) { |
0b932ccc DC |
1419 | xfs_warn(mp, |
1420 | "Quotacheck: Unsuccessful (Error %d): Disabling quotas.", | |
1421 | error); | |
1da177e4 LT |
1422 | /* |
1423 | * We must turn off quotas. | |
1424 | */ | |
1425 | ASSERT(mp->m_quotainfo != NULL); | |
1da177e4 | 1426 | xfs_qm_destroy_quotainfo(mp); |
31d5577b | 1427 | if (xfs_mount_reset_sbqflags(mp)) { |
0b932ccc DC |
1428 | xfs_warn(mp, |
1429 | "Quotacheck: Failed to reset quota flags."); | |
31d5577b | 1430 | } |
0b932ccc DC |
1431 | } else |
1432 | xfs_notice(mp, "Quotacheck: Done."); | |
d99831ff | 1433 | return error; |
1da177e4 LT |
1434 | } |
1435 | ||
eb866bbf JL |
1436 | /* |
1437 | * This is called from xfs_mountfs to start quotas and initialize all | |
1438 | * necessary data structures like quotainfo. This is also responsible for | |
1439 | * running a quotacheck as necessary. We are guaranteed that the superblock | |
1440 | * is consistently read in at this point. | |
1441 | * | |
1442 | * If we fail here, the mount will continue with quota turned off. We don't | |
1443 | * need to inidicate success or failure at all. | |
1444 | */ | |
1445 | void | |
1446 | xfs_qm_mount_quotas( | |
1447 | struct xfs_mount *mp) | |
1448 | { | |
1449 | int error = 0; | |
1450 | uint sbf; | |
1451 | ||
1452 | /* | |
1453 | * If quotas on realtime volumes is not supported, we disable | |
1454 | * quotas immediately. | |
1455 | */ | |
1456 | if (mp->m_sb.sb_rextents) { | |
1457 | xfs_notice(mp, "Cannot turn on quotas for realtime filesystem"); | |
1458 | mp->m_qflags = 0; | |
1459 | goto write_changes; | |
1460 | } | |
1461 | ||
1462 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
1463 | ||
1464 | /* | |
1465 | * Allocate the quotainfo structure inside the mount struct, and | |
1466 | * create quotainode(s), and change/rev superblock if necessary. | |
1467 | */ | |
1468 | error = xfs_qm_init_quotainfo(mp); | |
1469 | if (error) { | |
1470 | /* | |
1471 | * We must turn off quotas. | |
1472 | */ | |
1473 | ASSERT(mp->m_quotainfo == NULL); | |
1474 | mp->m_qflags = 0; | |
1475 | goto write_changes; | |
1476 | } | |
1477 | /* | |
1478 | * If any of the quotas are not consistent, do a quotacheck. | |
1479 | */ | |
1480 | if (XFS_QM_NEED_QUOTACHECK(mp)) { | |
1481 | error = xfs_qm_quotacheck(mp); | |
1482 | if (error) { | |
1483 | /* Quotacheck failed and disabled quotas. */ | |
1484 | return; | |
1485 | } | |
1486 | } | |
1487 | /* | |
1488 | * If one type of quotas is off, then it will lose its | |
1489 | * quotachecked status, since we won't be doing accounting for | |
1490 | * that type anymore. | |
1491 | */ | |
1492 | if (!XFS_IS_UQUOTA_ON(mp)) | |
1493 | mp->m_qflags &= ~XFS_UQUOTA_CHKD; | |
1494 | if (!XFS_IS_GQUOTA_ON(mp)) | |
1495 | mp->m_qflags &= ~XFS_GQUOTA_CHKD; | |
1496 | if (!XFS_IS_PQUOTA_ON(mp)) | |
1497 | mp->m_qflags &= ~XFS_PQUOTA_CHKD; | |
1498 | ||
1499 | write_changes: | |
1500 | /* | |
1501 | * We actually don't have to acquire the m_sb_lock at all. | |
1502 | * This can only be called from mount, and that's single threaded. XXX | |
1503 | */ | |
1504 | spin_lock(&mp->m_sb_lock); | |
1505 | sbf = mp->m_sb.sb_qflags; | |
1506 | mp->m_sb.sb_qflags = mp->m_qflags & XFS_MOUNT_QUOTA_ALL; | |
1507 | spin_unlock(&mp->m_sb_lock); | |
1508 | ||
1509 | if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) { | |
61e63ecb | 1510 | if (xfs_sync_sb(mp, false)) { |
eb866bbf JL |
1511 | /* |
1512 | * We could only have been turning quotas off. | |
1513 | * We aren't in very good shape actually because | |
1514 | * the incore structures are convinced that quotas are | |
1515 | * off, but the on disk superblock doesn't know that ! | |
1516 | */ | |
1517 | ASSERT(!(XFS_IS_QUOTA_RUNNING(mp))); | |
1518 | xfs_alert(mp, "%s: Superblock update failed!", | |
1519 | __func__); | |
1520 | } | |
1521 | } | |
1522 | ||
1523 | if (error) { | |
1524 | xfs_warn(mp, "Failed to initialize disk quotas."); | |
1525 | return; | |
1526 | } | |
1527 | } | |
1528 | ||
1da177e4 LT |
1529 | /* |
1530 | * This is called after the superblock has been read in and we're ready to | |
1531 | * iget the quota inodes. | |
1532 | */ | |
1533 | STATIC int | |
1534 | xfs_qm_init_quotainos( | |
1535 | xfs_mount_t *mp) | |
1536 | { | |
113a5683 CS |
1537 | struct xfs_inode *uip = NULL; |
1538 | struct xfs_inode *gip = NULL; | |
92f8ff73 | 1539 | struct xfs_inode *pip = NULL; |
113a5683 | 1540 | int error; |
113a5683 | 1541 | uint flags = 0; |
1da177e4 LT |
1542 | |
1543 | ASSERT(mp->m_quotainfo); | |
1da177e4 LT |
1544 | |
1545 | /* | |
1546 | * Get the uquota and gquota inodes | |
1547 | */ | |
62118709 | 1548 | if (xfs_sb_version_hasquota(&mp->m_sb)) { |
1da177e4 LT |
1549 | if (XFS_IS_UQUOTA_ON(mp) && |
1550 | mp->m_sb.sb_uquotino != NULLFSINO) { | |
1551 | ASSERT(mp->m_sb.sb_uquotino > 0); | |
113a5683 CS |
1552 | error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, |
1553 | 0, 0, &uip); | |
1554 | if (error) | |
b474c7ae | 1555 | return error; |
1da177e4 | 1556 | } |
92f8ff73 | 1557 | if (XFS_IS_GQUOTA_ON(mp) && |
1da177e4 LT |
1558 | mp->m_sb.sb_gquotino != NULLFSINO) { |
1559 | ASSERT(mp->m_sb.sb_gquotino > 0); | |
113a5683 CS |
1560 | error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, |
1561 | 0, 0, &gip); | |
1562 | if (error) | |
1563 | goto error_rele; | |
1da177e4 | 1564 | } |
92f8ff73 | 1565 | if (XFS_IS_PQUOTA_ON(mp) && |
d892d586 CS |
1566 | mp->m_sb.sb_pquotino != NULLFSINO) { |
1567 | ASSERT(mp->m_sb.sb_pquotino > 0); | |
1568 | error = xfs_iget(mp, NULL, mp->m_sb.sb_pquotino, | |
92f8ff73 CS |
1569 | 0, 0, &pip); |
1570 | if (error) | |
1571 | goto error_rele; | |
1572 | } | |
1da177e4 LT |
1573 | } else { |
1574 | flags |= XFS_QMOPT_SBVERSION; | |
1da177e4 LT |
1575 | } |
1576 | ||
1577 | /* | |
92f8ff73 | 1578 | * Create the three inodes, if they don't exist already. The changes |
1da177e4 LT |
1579 | * made above will get added to a transaction and logged in one of |
1580 | * the qino_alloc calls below. If the device is readonly, | |
1581 | * temporarily switch to read-write to do this. | |
1582 | */ | |
1583 | if (XFS_IS_UQUOTA_ON(mp) && uip == NULL) { | |
113a5683 | 1584 | error = xfs_qm_qino_alloc(mp, &uip, |
113a5683 CS |
1585 | flags | XFS_QMOPT_UQUOTA); |
1586 | if (error) | |
1587 | goto error_rele; | |
1da177e4 LT |
1588 | |
1589 | flags &= ~XFS_QMOPT_SBVERSION; | |
1590 | } | |
92f8ff73 | 1591 | if (XFS_IS_GQUOTA_ON(mp) && gip == NULL) { |
c8ad20ff | 1592 | error = xfs_qm_qino_alloc(mp, &gip, |
92f8ff73 CS |
1593 | flags | XFS_QMOPT_GQUOTA); |
1594 | if (error) | |
1595 | goto error_rele; | |
1596 | ||
1597 | flags &= ~XFS_QMOPT_SBVERSION; | |
1598 | } | |
1599 | if (XFS_IS_PQUOTA_ON(mp) && pip == NULL) { | |
92f8ff73 | 1600 | error = xfs_qm_qino_alloc(mp, &pip, |
92f8ff73 | 1601 | flags | XFS_QMOPT_PQUOTA); |
113a5683 CS |
1602 | if (error) |
1603 | goto error_rele; | |
1da177e4 LT |
1604 | } |
1605 | ||
8a7b8a89 CH |
1606 | mp->m_quotainfo->qi_uquotaip = uip; |
1607 | mp->m_quotainfo->qi_gquotaip = gip; | |
92f8ff73 | 1608 | mp->m_quotainfo->qi_pquotaip = pip; |
1da177e4 | 1609 | |
014c2544 | 1610 | return 0; |
113a5683 CS |
1611 | |
1612 | error_rele: | |
1613 | if (uip) | |
1614 | IRELE(uip); | |
1615 | if (gip) | |
1616 | IRELE(gip); | |
92f8ff73 CS |
1617 | if (pip) |
1618 | IRELE(pip); | |
b474c7ae | 1619 | return error; |
1da177e4 LT |
1620 | } |
1621 | ||
92b2e5b3 CH |
1622 | STATIC void |
1623 | xfs_qm_dqfree_one( | |
1624 | struct xfs_dquot *dqp) | |
1625 | { | |
1626 | struct xfs_mount *mp = dqp->q_mount; | |
1627 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
1da177e4 | 1628 | |
9f920f11 | 1629 | mutex_lock(&qi->qi_tree_lock); |
329e0875 | 1630 | radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags), |
9f920f11 | 1631 | be32_to_cpu(dqp->q_core.d_id)); |
368e1361 | 1632 | |
92b2e5b3 | 1633 | qi->qi_dquots--; |
b84a3a96 | 1634 | mutex_unlock(&qi->qi_tree_lock); |
92b2e5b3 CH |
1635 | |
1636 | xfs_qm_dqdestroy(dqp); | |
1637 | } | |
1638 | ||
1da177e4 LT |
1639 | /* --------------- utility functions for vnodeops ---------------- */ |
1640 | ||
1641 | ||
1642 | /* | |
6c77b0ea | 1643 | * Given an inode, a uid, gid and prid make sure that we have |
1da177e4 LT |
1644 | * allocated relevant dquot(s) on disk, and that we won't exceed inode |
1645 | * quotas by creating this file. | |
1646 | * This also attaches dquot(s) to the given inode after locking it, | |
1647 | * and returns the dquots corresponding to the uid and/or gid. | |
1648 | * | |
1649 | * in : inode (unlocked) | |
1650 | * out : udquot, gdquot with references taken and unlocked | |
1651 | */ | |
1652 | int | |
1653 | xfs_qm_vop_dqalloc( | |
7d095257 | 1654 | struct xfs_inode *ip, |
7aab1b28 DE |
1655 | xfs_dqid_t uid, |
1656 | xfs_dqid_t gid, | |
7d095257 CH |
1657 | prid_t prid, |
1658 | uint flags, | |
1659 | struct xfs_dquot **O_udqpp, | |
92f8ff73 CS |
1660 | struct xfs_dquot **O_gdqpp, |
1661 | struct xfs_dquot **O_pdqpp) | |
1da177e4 | 1662 | { |
7d095257 | 1663 | struct xfs_mount *mp = ip->i_mount; |
113a5683 CS |
1664 | struct xfs_dquot *uq = NULL; |
1665 | struct xfs_dquot *gq = NULL; | |
92f8ff73 | 1666 | struct xfs_dquot *pq = NULL; |
7d095257 CH |
1667 | int error; |
1668 | uint lockflags; | |
1da177e4 | 1669 | |
7d095257 | 1670 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
1da177e4 LT |
1671 | return 0; |
1672 | ||
1673 | lockflags = XFS_ILOCK_EXCL; | |
1674 | xfs_ilock(ip, lockflags); | |
1675 | ||
bd186aa9 | 1676 | if ((flags & XFS_QMOPT_INHERIT) && XFS_INHERIT_GID(ip)) |
1da177e4 LT |
1677 | gid = ip->i_d.di_gid; |
1678 | ||
1679 | /* | |
1680 | * Attach the dquot(s) to this inode, doing a dquot allocation | |
1681 | * if necessary. The dquot(s) will not be locked. | |
1682 | */ | |
1683 | if (XFS_NOT_DQATTACHED(mp, ip)) { | |
7d095257 CH |
1684 | error = xfs_qm_dqattach_locked(ip, XFS_QMOPT_DQALLOC); |
1685 | if (error) { | |
1da177e4 | 1686 | xfs_iunlock(ip, lockflags); |
014c2544 | 1687 | return error; |
1da177e4 LT |
1688 | } |
1689 | } | |
1690 | ||
c8ad20ff | 1691 | if ((flags & XFS_QMOPT_UQUOTA) && XFS_IS_UQUOTA_ON(mp)) { |
1da177e4 LT |
1692 | if (ip->i_d.di_uid != uid) { |
1693 | /* | |
1694 | * What we need is the dquot that has this uid, and | |
1695 | * if we send the inode to dqget, the uid of the inode | |
1696 | * takes priority over what's sent in the uid argument. | |
1697 | * We must unlock inode here before calling dqget if | |
1698 | * we're not sending the inode, because otherwise | |
1699 | * we'll deadlock by doing trans_reserve while | |
1700 | * holding ilock. | |
1701 | */ | |
1702 | xfs_iunlock(ip, lockflags); | |
7aab1b28 | 1703 | error = xfs_qm_dqget(mp, NULL, uid, |
1da177e4 LT |
1704 | XFS_DQ_USER, |
1705 | XFS_QMOPT_DQALLOC | | |
1706 | XFS_QMOPT_DOWARN, | |
113a5683 CS |
1707 | &uq); |
1708 | if (error) { | |
2451337d | 1709 | ASSERT(error != -ENOENT); |
014c2544 | 1710 | return error; |
1da177e4 LT |
1711 | } |
1712 | /* | |
1713 | * Get the ilock in the right order. | |
1714 | */ | |
1715 | xfs_dqunlock(uq); | |
1716 | lockflags = XFS_ILOCK_SHARED; | |
1717 | xfs_ilock(ip, lockflags); | |
1718 | } else { | |
1719 | /* | |
1720 | * Take an extra reference, because we'll return | |
1721 | * this to caller | |
1722 | */ | |
1723 | ASSERT(ip->i_udquot); | |
78e55892 | 1724 | uq = xfs_qm_dqhold(ip->i_udquot); |
1da177e4 LT |
1725 | } |
1726 | } | |
c8ad20ff | 1727 | if ((flags & XFS_QMOPT_GQUOTA) && XFS_IS_GQUOTA_ON(mp)) { |
1da177e4 LT |
1728 | if (ip->i_d.di_gid != gid) { |
1729 | xfs_iunlock(ip, lockflags); | |
7aab1b28 | 1730 | error = xfs_qm_dqget(mp, NULL, gid, |
1da177e4 LT |
1731 | XFS_DQ_GROUP, |
1732 | XFS_QMOPT_DQALLOC | | |
1733 | XFS_QMOPT_DOWARN, | |
113a5683 CS |
1734 | &gq); |
1735 | if (error) { | |
2451337d | 1736 | ASSERT(error != -ENOENT); |
113a5683 | 1737 | goto error_rele; |
1da177e4 LT |
1738 | } |
1739 | xfs_dqunlock(gq); | |
1740 | lockflags = XFS_ILOCK_SHARED; | |
1741 | xfs_ilock(ip, lockflags); | |
1742 | } else { | |
1743 | ASSERT(ip->i_gdquot); | |
78e55892 | 1744 | gq = xfs_qm_dqhold(ip->i_gdquot); |
1da177e4 | 1745 | } |
92f8ff73 CS |
1746 | } |
1747 | if ((flags & XFS_QMOPT_PQUOTA) && XFS_IS_PQUOTA_ON(mp)) { | |
6743099c | 1748 | if (xfs_get_projid(ip) != prid) { |
c8ad20ff | 1749 | xfs_iunlock(ip, lockflags); |
113a5683 | 1750 | error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t)prid, |
c8ad20ff NS |
1751 | XFS_DQ_PROJ, |
1752 | XFS_QMOPT_DQALLOC | | |
1753 | XFS_QMOPT_DOWARN, | |
92f8ff73 | 1754 | &pq); |
113a5683 | 1755 | if (error) { |
2451337d | 1756 | ASSERT(error != -ENOENT); |
113a5683 | 1757 | goto error_rele; |
c8ad20ff | 1758 | } |
92f8ff73 | 1759 | xfs_dqunlock(pq); |
c8ad20ff NS |
1760 | lockflags = XFS_ILOCK_SHARED; |
1761 | xfs_ilock(ip, lockflags); | |
1762 | } else { | |
92f8ff73 CS |
1763 | ASSERT(ip->i_pdquot); |
1764 | pq = xfs_qm_dqhold(ip->i_pdquot); | |
c8ad20ff | 1765 | } |
1da177e4 LT |
1766 | } |
1767 | if (uq) | |
0b1b213f | 1768 | trace_xfs_dquot_dqalloc(ip); |
1da177e4 LT |
1769 | |
1770 | xfs_iunlock(ip, lockflags); | |
1771 | if (O_udqpp) | |
1772 | *O_udqpp = uq; | |
d2a5e3c6 | 1773 | else |
1da177e4 LT |
1774 | xfs_qm_dqrele(uq); |
1775 | if (O_gdqpp) | |
1776 | *O_gdqpp = gq; | |
d2a5e3c6 | 1777 | else |
1da177e4 | 1778 | xfs_qm_dqrele(gq); |
92f8ff73 CS |
1779 | if (O_pdqpp) |
1780 | *O_pdqpp = pq; | |
d2a5e3c6 | 1781 | else |
92f8ff73 | 1782 | xfs_qm_dqrele(pq); |
014c2544 | 1783 | return 0; |
113a5683 CS |
1784 | |
1785 | error_rele: | |
d2a5e3c6 ME |
1786 | xfs_qm_dqrele(gq); |
1787 | xfs_qm_dqrele(uq); | |
113a5683 | 1788 | return error; |
1da177e4 LT |
1789 | } |
1790 | ||
1791 | /* | |
1792 | * Actually transfer ownership, and do dquot modifications. | |
1793 | * These were already reserved. | |
1794 | */ | |
1795 | xfs_dquot_t * | |
1796 | xfs_qm_vop_chown( | |
1797 | xfs_trans_t *tp, | |
1798 | xfs_inode_t *ip, | |
1799 | xfs_dquot_t **IO_olddq, | |
1800 | xfs_dquot_t *newdq) | |
1801 | { | |
1802 | xfs_dquot_t *prevdq; | |
06d10dd9 NS |
1803 | uint bfield = XFS_IS_REALTIME_INODE(ip) ? |
1804 | XFS_TRANS_DQ_RTBCOUNT : XFS_TRANS_DQ_BCOUNT; | |
1805 | ||
7d095257 | 1806 | |
579aa9ca | 1807 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
1808 | ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount)); |
1809 | ||
1810 | /* old dquot */ | |
1811 | prevdq = *IO_olddq; | |
1812 | ASSERT(prevdq); | |
1813 | ASSERT(prevdq != newdq); | |
1814 | ||
06d10dd9 NS |
1815 | xfs_trans_mod_dquot(tp, prevdq, bfield, -(ip->i_d.di_nblocks)); |
1816 | xfs_trans_mod_dquot(tp, prevdq, XFS_TRANS_DQ_ICOUNT, -1); | |
1da177e4 LT |
1817 | |
1818 | /* the sparkling new dquot */ | |
06d10dd9 NS |
1819 | xfs_trans_mod_dquot(tp, newdq, bfield, ip->i_d.di_nblocks); |
1820 | xfs_trans_mod_dquot(tp, newdq, XFS_TRANS_DQ_ICOUNT, 1); | |
1da177e4 LT |
1821 | |
1822 | /* | |
78e55892 CH |
1823 | * Take an extra reference, because the inode is going to keep |
1824 | * this dquot pointer even after the trans_commit. | |
1da177e4 | 1825 | */ |
78e55892 | 1826 | *IO_olddq = xfs_qm_dqhold(newdq); |
1da177e4 | 1827 | |
014c2544 | 1828 | return prevdq; |
1da177e4 LT |
1829 | } |
1830 | ||
1831 | /* | |
c8ad20ff | 1832 | * Quota reservations for setattr(AT_UID|AT_GID|AT_PROJID). |
1da177e4 LT |
1833 | */ |
1834 | int | |
1835 | xfs_qm_vop_chown_reserve( | |
113a5683 CS |
1836 | struct xfs_trans *tp, |
1837 | struct xfs_inode *ip, | |
1838 | struct xfs_dquot *udqp, | |
1839 | struct xfs_dquot *gdqp, | |
92f8ff73 | 1840 | struct xfs_dquot *pdqp, |
113a5683 | 1841 | uint flags) |
1da177e4 | 1842 | { |
113a5683 CS |
1843 | struct xfs_mount *mp = ip->i_mount; |
1844 | uint delblks, blkflags, prjflags = 0; | |
1845 | struct xfs_dquot *udq_unres = NULL; | |
1846 | struct xfs_dquot *gdq_unres = NULL; | |
92f8ff73 | 1847 | struct xfs_dquot *pdq_unres = NULL; |
113a5683 CS |
1848 | struct xfs_dquot *udq_delblks = NULL; |
1849 | struct xfs_dquot *gdq_delblks = NULL; | |
92f8ff73 | 1850 | struct xfs_dquot *pdq_delblks = NULL; |
113a5683 | 1851 | int error; |
7d095257 | 1852 | |
1da177e4 | 1853 | |
579aa9ca | 1854 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED)); |
1da177e4 LT |
1855 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1856 | ||
1857 | delblks = ip->i_delayed_blks; | |
06d10dd9 NS |
1858 | blkflags = XFS_IS_REALTIME_INODE(ip) ? |
1859 | XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS; | |
1da177e4 LT |
1860 | |
1861 | if (XFS_IS_UQUOTA_ON(mp) && udqp && | |
7aab1b28 | 1862 | ip->i_d.di_uid != be32_to_cpu(udqp->q_core.d_id)) { |
113a5683 | 1863 | udq_delblks = udqp; |
1da177e4 LT |
1864 | /* |
1865 | * If there are delayed allocation blocks, then we have to | |
1866 | * unreserve those from the old dquot, and add them to the | |
1867 | * new dquot. | |
1868 | */ | |
1869 | if (delblks) { | |
1870 | ASSERT(ip->i_udquot); | |
113a5683 | 1871 | udq_unres = ip->i_udquot; |
1da177e4 LT |
1872 | } |
1873 | } | |
92f8ff73 CS |
1874 | if (XFS_IS_GQUOTA_ON(ip->i_mount) && gdqp && |
1875 | ip->i_d.di_gid != be32_to_cpu(gdqp->q_core.d_id)) { | |
1876 | gdq_delblks = gdqp; | |
1877 | if (delblks) { | |
1878 | ASSERT(ip->i_gdquot); | |
1879 | gdq_unres = ip->i_gdquot; | |
1880 | } | |
1881 | } | |
1882 | ||
1883 | if (XFS_IS_PQUOTA_ON(ip->i_mount) && pdqp && | |
1884 | xfs_get_projid(ip) != be32_to_cpu(pdqp->q_core.d_id)) { | |
1885 | prjflags = XFS_QMOPT_ENOSPC; | |
1886 | pdq_delblks = pdqp; | |
1887 | if (delblks) { | |
1888 | ASSERT(ip->i_pdquot); | |
1889 | pdq_unres = ip->i_pdquot; | |
1da177e4 LT |
1890 | } |
1891 | } | |
1892 | ||
113a5683 | 1893 | error = xfs_trans_reserve_quota_bydquots(tp, ip->i_mount, |
92f8ff73 CS |
1894 | udq_delblks, gdq_delblks, pdq_delblks, |
1895 | ip->i_d.di_nblocks, 1, | |
113a5683 CS |
1896 | flags | blkflags | prjflags); |
1897 | if (error) | |
1898 | return error; | |
1da177e4 LT |
1899 | |
1900 | /* | |
1901 | * Do the delayed blks reservations/unreservations now. Since, these | |
1902 | * are done without the help of a transaction, if a reservation fails | |
1903 | * its previous reservations won't be automatically undone by trans | |
1904 | * code. So, we have to do it manually here. | |
1905 | */ | |
1906 | if (delblks) { | |
1907 | /* | |
1908 | * Do the reservations first. Unreservation can't fail. | |
1909 | */ | |
92f8ff73 CS |
1910 | ASSERT(udq_delblks || gdq_delblks || pdq_delblks); |
1911 | ASSERT(udq_unres || gdq_unres || pdq_unres); | |
113a5683 | 1912 | error = xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, |
92f8ff73 CS |
1913 | udq_delblks, gdq_delblks, pdq_delblks, |
1914 | (xfs_qcnt_t)delblks, 0, | |
113a5683 CS |
1915 | flags | blkflags | prjflags); |
1916 | if (error) | |
1917 | return error; | |
1da177e4 | 1918 | xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, |
92f8ff73 CS |
1919 | udq_unres, gdq_unres, pdq_unres, |
1920 | -((xfs_qcnt_t)delblks), 0, blkflags); | |
1da177e4 LT |
1921 | } |
1922 | ||
d99831ff | 1923 | return 0; |
1da177e4 LT |
1924 | } |
1925 | ||
1926 | int | |
1927 | xfs_qm_vop_rename_dqattach( | |
7d095257 | 1928 | struct xfs_inode **i_tab) |
1da177e4 | 1929 | { |
7d095257 CH |
1930 | struct xfs_mount *mp = i_tab[0]->i_mount; |
1931 | int i; | |
1da177e4 | 1932 | |
7d095257 | 1933 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
014c2544 | 1934 | return 0; |
1da177e4 | 1935 | |
7d095257 CH |
1936 | for (i = 0; (i < 4 && i_tab[i]); i++) { |
1937 | struct xfs_inode *ip = i_tab[i]; | |
1938 | int error; | |
1939 | ||
1da177e4 LT |
1940 | /* |
1941 | * Watch out for duplicate entries in the table. | |
1942 | */ | |
7d095257 CH |
1943 | if (i == 0 || ip != i_tab[i-1]) { |
1944 | if (XFS_NOT_DQATTACHED(mp, ip)) { | |
1da177e4 LT |
1945 | error = xfs_qm_dqattach(ip, 0); |
1946 | if (error) | |
014c2544 | 1947 | return error; |
1da177e4 LT |
1948 | } |
1949 | } | |
1950 | } | |
014c2544 | 1951 | return 0; |
1da177e4 LT |
1952 | } |
1953 | ||
1954 | void | |
7d095257 CH |
1955 | xfs_qm_vop_create_dqattach( |
1956 | struct xfs_trans *tp, | |
1957 | struct xfs_inode *ip, | |
1958 | struct xfs_dquot *udqp, | |
92f8ff73 CS |
1959 | struct xfs_dquot *gdqp, |
1960 | struct xfs_dquot *pdqp) | |
1da177e4 | 1961 | { |
7d095257 CH |
1962 | struct xfs_mount *mp = tp->t_mountp; |
1963 | ||
1964 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) | |
1da177e4 LT |
1965 | return; |
1966 | ||
579aa9ca | 1967 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
7d095257 | 1968 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1da177e4 | 1969 | |
37eb9706 | 1970 | if (udqp && XFS_IS_UQUOTA_ON(mp)) { |
1da177e4 | 1971 | ASSERT(ip->i_udquot == NULL); |
1149d96a | 1972 | ASSERT(ip->i_d.di_uid == be32_to_cpu(udqp->q_core.d_id)); |
78e55892 CH |
1973 | |
1974 | ip->i_udquot = xfs_qm_dqhold(udqp); | |
1da177e4 LT |
1975 | xfs_trans_mod_dquot(tp, udqp, XFS_TRANS_DQ_ICOUNT, 1); |
1976 | } | |
37eb9706 | 1977 | if (gdqp && XFS_IS_GQUOTA_ON(mp)) { |
1da177e4 | 1978 | ASSERT(ip->i_gdquot == NULL); |
92f8ff73 | 1979 | ASSERT(ip->i_d.di_gid == be32_to_cpu(gdqp->q_core.d_id)); |
78e55892 | 1980 | ip->i_gdquot = xfs_qm_dqhold(gdqp); |
1da177e4 LT |
1981 | xfs_trans_mod_dquot(tp, gdqp, XFS_TRANS_DQ_ICOUNT, 1); |
1982 | } | |
37eb9706 | 1983 | if (pdqp && XFS_IS_PQUOTA_ON(mp)) { |
92f8ff73 | 1984 | ASSERT(ip->i_pdquot == NULL); |
92f8ff73 CS |
1985 | ASSERT(xfs_get_projid(ip) == be32_to_cpu(pdqp->q_core.d_id)); |
1986 | ||
1987 | ip->i_pdquot = xfs_qm_dqhold(pdqp); | |
1988 | xfs_trans_mod_dquot(tp, pdqp, XFS_TRANS_DQ_ICOUNT, 1); | |
1989 | } | |
1da177e4 LT |
1990 | } |
1991 |