Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
4ce3121f NS |
2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
4ce3121f NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
4ce3121f NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
1da177e4 | 13 | * |
4ce3121f NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
1da177e4 | 17 | */ |
1da177e4 LT |
18 | #include "xfs.h" |
19 | #include "xfs_fs.h" | |
a844f451 | 20 | #include "xfs_bit.h" |
1da177e4 | 21 | #include "xfs_log.h" |
1da177e4 LT |
22 | #include "xfs_trans.h" |
23 | #include "xfs_sb.h" | |
24 | #include "xfs_ag.h" | |
1da177e4 | 25 | #include "xfs_alloc.h" |
1da177e4 LT |
26 | #include "xfs_quota.h" |
27 | #include "xfs_mount.h" | |
1da177e4 LT |
28 | #include "xfs_bmap_btree.h" |
29 | #include "xfs_ialloc_btree.h" | |
1da177e4 LT |
30 | #include "xfs_dinode.h" |
31 | #include "xfs_inode.h" | |
a844f451 NS |
32 | #include "xfs_ialloc.h" |
33 | #include "xfs_itable.h" | |
1da177e4 LT |
34 | #include "xfs_rtalloc.h" |
35 | #include "xfs_error.h" | |
a844f451 | 36 | #include "xfs_bmap.h" |
1da177e4 LT |
37 | #include "xfs_attr.h" |
38 | #include "xfs_buf_item.h" | |
39 | #include "xfs_trans_space.h" | |
40 | #include "xfs_utils.h" | |
1da177e4 | 41 | #include "xfs_qm.h" |
0b1b213f | 42 | #include "xfs_trace.h" |
33479e05 | 43 | #include "xfs_icache.h" |
1da177e4 LT |
44 | |
45 | /* | |
46 | * The global quota manager. There is only one of these for the entire | |
47 | * system, _not_ one per file system. XQM keeps track of the overall | |
48 | * quota functionality, including maintaining the freelist and hash | |
49 | * tables of dquots. | |
50 | */ | |
1da177e4 | 51 | STATIC int xfs_qm_init_quotainos(xfs_mount_t *); |
ba0f32d4 | 52 | STATIC int xfs_qm_init_quotainfo(xfs_mount_t *); |
1495f230 | 53 | STATIC int xfs_qm_shake(struct shrinker *, struct shrink_control *); |
1da177e4 | 54 | |
b84a3a96 CH |
55 | /* |
56 | * We use the batch lookup interface to iterate over the dquots as it | |
57 | * currently is the only interface into the radix tree code that allows | |
58 | * fuzzy lookups instead of exact matches. Holding the lock over multiple | |
59 | * operations is fine as all callers are used either during mount/umount | |
60 | * or quotaoff. | |
61 | */ | |
62 | #define XFS_DQ_LOOKUP_BATCH 32 | |
63 | ||
64 | STATIC int | |
65 | xfs_qm_dquot_walk( | |
66 | struct xfs_mount *mp, | |
67 | int type, | |
43ff2122 CH |
68 | int (*execute)(struct xfs_dquot *dqp, void *data), |
69 | void *data) | |
b84a3a96 CH |
70 | { |
71 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
72 | struct radix_tree_root *tree = XFS_DQUOT_TREE(qi, type); | |
73 | uint32_t next_index; | |
74 | int last_error = 0; | |
75 | int skipped; | |
76 | int nr_found; | |
77 | ||
78 | restart: | |
79 | skipped = 0; | |
80 | next_index = 0; | |
81 | nr_found = 0; | |
82 | ||
83 | while (1) { | |
84 | struct xfs_dquot *batch[XFS_DQ_LOOKUP_BATCH]; | |
85 | int error = 0; | |
86 | int i; | |
87 | ||
88 | mutex_lock(&qi->qi_tree_lock); | |
89 | nr_found = radix_tree_gang_lookup(tree, (void **)batch, | |
90 | next_index, XFS_DQ_LOOKUP_BATCH); | |
91 | if (!nr_found) { | |
92 | mutex_unlock(&qi->qi_tree_lock); | |
93 | break; | |
94 | } | |
95 | ||
96 | for (i = 0; i < nr_found; i++) { | |
97 | struct xfs_dquot *dqp = batch[i]; | |
98 | ||
99 | next_index = be32_to_cpu(dqp->q_core.d_id) + 1; | |
100 | ||
43ff2122 | 101 | error = execute(batch[i], data); |
b84a3a96 CH |
102 | if (error == EAGAIN) { |
103 | skipped++; | |
104 | continue; | |
105 | } | |
106 | if (error && last_error != EFSCORRUPTED) | |
107 | last_error = error; | |
108 | } | |
109 | ||
110 | mutex_unlock(&qi->qi_tree_lock); | |
111 | ||
112 | /* bail out if the filesystem is corrupted. */ | |
113 | if (last_error == EFSCORRUPTED) { | |
114 | skipped = 0; | |
115 | break; | |
116 | } | |
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; | |
138 | struct xfs_dquot *gdqp = NULL; | |
139 | ||
140 | xfs_dqlock(dqp); | |
141 | if ((dqp->dq_flags & XFS_DQ_FREEING) || dqp->q_nrefs != 0) { | |
142 | xfs_dqunlock(dqp); | |
143 | return EAGAIN; | |
144 | } | |
145 | ||
146 | /* | |
147 | * If this quota has a group hint attached, prepare for releasing it | |
148 | * now. | |
149 | */ | |
150 | gdqp = dqp->q_gdquot; | |
151 | if (gdqp) { | |
152 | xfs_dqlock(gdqp); | |
153 | dqp->q_gdquot = NULL; | |
154 | } | |
155 | ||
156 | dqp->dq_flags |= XFS_DQ_FREEING; | |
157 | ||
43ff2122 | 158 | xfs_dqflock(dqp); |
b84a3a96 CH |
159 | |
160 | /* | |
161 | * If we are turning this type of quotas off, we don't care | |
162 | * about the dirty metadata sitting in this dquot. OTOH, if | |
163 | * we're unmounting, we do care, so we flush it and wait. | |
164 | */ | |
165 | if (XFS_DQ_IS_DIRTY(dqp)) { | |
fe7257fd CH |
166 | struct xfs_buf *bp = NULL; |
167 | int error; | |
b84a3a96 CH |
168 | |
169 | /* | |
170 | * We don't care about getting disk errors here. We need | |
171 | * to purge this dquot anyway, so we go ahead regardless. | |
172 | */ | |
fe7257fd CH |
173 | error = xfs_qm_dqflush(dqp, &bp); |
174 | if (error) { | |
b84a3a96 CH |
175 | xfs_warn(mp, "%s: dquot %p flush failed", |
176 | __func__, dqp); | |
fe7257fd CH |
177 | } else { |
178 | error = xfs_bwrite(bp); | |
179 | xfs_buf_relse(bp); | |
180 | } | |
b84a3a96 CH |
181 | xfs_dqflock(dqp); |
182 | } | |
183 | ||
184 | ASSERT(atomic_read(&dqp->q_pincount) == 0); | |
185 | ASSERT(XFS_FORCED_SHUTDOWN(mp) || | |
186 | !(dqp->q_logitem.qli_item.li_flags & XFS_LI_IN_AIL)); | |
187 | ||
188 | xfs_dqfunlock(dqp); | |
189 | xfs_dqunlock(dqp); | |
190 | ||
191 | radix_tree_delete(XFS_DQUOT_TREE(qi, dqp->q_core.d_flags), | |
192 | be32_to_cpu(dqp->q_core.d_id)); | |
193 | qi->qi_dquots--; | |
194 | ||
195 | /* | |
196 | * We move dquots to the freelist as soon as their reference count | |
197 | * hits zero, so it really should be on the freelist here. | |
198 | */ | |
199 | mutex_lock(&qi->qi_lru_lock); | |
200 | ASSERT(!list_empty(&dqp->q_lru)); | |
201 | list_del_init(&dqp->q_lru); | |
202 | qi->qi_lru_count--; | |
203 | XFS_STATS_DEC(xs_qm_dquot_unused); | |
204 | mutex_unlock(&qi->qi_lru_lock); | |
205 | ||
206 | xfs_qm_dqdestroy(dqp); | |
207 | ||
208 | if (gdqp) | |
209 | xfs_qm_dqput(gdqp); | |
210 | return 0; | |
211 | } | |
212 | ||
213 | /* | |
214 | * Purge the dquot cache. | |
215 | */ | |
216 | void | |
217 | xfs_qm_dqpurge_all( | |
218 | struct xfs_mount *mp, | |
219 | uint flags) | |
220 | { | |
221 | if (flags & XFS_QMOPT_UQUOTA) | |
43ff2122 | 222 | xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_dqpurge, NULL); |
b84a3a96 | 223 | if (flags & XFS_QMOPT_GQUOTA) |
43ff2122 | 224 | xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_dqpurge, NULL); |
b84a3a96 | 225 | if (flags & XFS_QMOPT_PQUOTA) |
43ff2122 | 226 | xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_dqpurge, NULL); |
b84a3a96 CH |
227 | } |
228 | ||
1da177e4 LT |
229 | /* |
230 | * Just destroy the quotainfo structure. | |
231 | */ | |
232 | void | |
7d095257 CH |
233 | xfs_qm_unmount( |
234 | struct xfs_mount *mp) | |
1da177e4 | 235 | { |
7d095257 | 236 | if (mp->m_quotainfo) { |
8112e9dc | 237 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
1da177e4 | 238 | xfs_qm_destroy_quotainfo(mp); |
7d095257 | 239 | } |
1da177e4 LT |
240 | } |
241 | ||
242 | ||
243 | /* | |
244 | * This is called from xfs_mountfs to start quotas and initialize all | |
245 | * necessary data structures like quotainfo. This is also responsible for | |
246 | * running a quotacheck as necessary. We are guaranteed that the superblock | |
247 | * is consistently read in at this point. | |
53aa7915 DC |
248 | * |
249 | * If we fail here, the mount will continue with quota turned off. We don't | |
250 | * need to inidicate success or failure at all. | |
1da177e4 | 251 | */ |
53aa7915 | 252 | void |
1da177e4 | 253 | xfs_qm_mount_quotas( |
4249023a | 254 | xfs_mount_t *mp) |
1da177e4 | 255 | { |
1da177e4 LT |
256 | int error = 0; |
257 | uint sbf; | |
258 | ||
1da177e4 LT |
259 | /* |
260 | * If quotas on realtime volumes is not supported, we disable | |
261 | * quotas immediately. | |
262 | */ | |
263 | if (mp->m_sb.sb_rextents) { | |
0b932ccc | 264 | xfs_notice(mp, "Cannot turn on quotas for realtime filesystem"); |
1da177e4 LT |
265 | mp->m_qflags = 0; |
266 | goto write_changes; | |
267 | } | |
268 | ||
1da177e4 | 269 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
155ffd07 | 270 | |
1da177e4 LT |
271 | /* |
272 | * Allocate the quotainfo structure inside the mount struct, and | |
273 | * create quotainode(s), and change/rev superblock if necessary. | |
274 | */ | |
53aa7915 DC |
275 | error = xfs_qm_init_quotainfo(mp); |
276 | if (error) { | |
1da177e4 LT |
277 | /* |
278 | * We must turn off quotas. | |
279 | */ | |
280 | ASSERT(mp->m_quotainfo == NULL); | |
281 | mp->m_qflags = 0; | |
282 | goto write_changes; | |
283 | } | |
284 | /* | |
285 | * If any of the quotas are not consistent, do a quotacheck. | |
286 | */ | |
4249023a | 287 | if (XFS_QM_NEED_QUOTACHECK(mp)) { |
53aa7915 DC |
288 | error = xfs_qm_quotacheck(mp); |
289 | if (error) { | |
290 | /* Quotacheck failed and disabled quotas. */ | |
291 | return; | |
1da177e4 | 292 | } |
1da177e4 | 293 | } |
646d5bda DD |
294 | /* |
295 | * If one type of quotas is off, then it will lose its | |
296 | * quotachecked status, since we won't be doing accounting for | |
297 | * that type anymore. | |
298 | */ | |
53aa7915 | 299 | if (!XFS_IS_UQUOTA_ON(mp)) |
646d5bda | 300 | mp->m_qflags &= ~XFS_UQUOTA_CHKD; |
53aa7915 | 301 | if (!(XFS_IS_GQUOTA_ON(mp) || XFS_IS_PQUOTA_ON(mp))) |
646d5bda | 302 | mp->m_qflags &= ~XFS_OQUOTA_CHKD; |
155ffd07 | 303 | |
1da177e4 LT |
304 | write_changes: |
305 | /* | |
3685c2a1 | 306 | * We actually don't have to acquire the m_sb_lock at all. |
1da177e4 LT |
307 | * This can only be called from mount, and that's single threaded. XXX |
308 | */ | |
3685c2a1 | 309 | spin_lock(&mp->m_sb_lock); |
1da177e4 LT |
310 | sbf = mp->m_sb.sb_qflags; |
311 | mp->m_sb.sb_qflags = mp->m_qflags & XFS_MOUNT_QUOTA_ALL; | |
3685c2a1 | 312 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
313 | |
314 | if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) { | |
315 | if (xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS)) { | |
316 | /* | |
317 | * We could only have been turning quotas off. | |
318 | * We aren't in very good shape actually because | |
319 | * the incore structures are convinced that quotas are | |
320 | * off, but the on disk superblock doesn't know that ! | |
321 | */ | |
322 | ASSERT(!(XFS_IS_QUOTA_RUNNING(mp))); | |
53487786 DC |
323 | xfs_alert(mp, "%s: Superblock update failed!", |
324 | __func__); | |
1da177e4 LT |
325 | } |
326 | } | |
327 | ||
328 | if (error) { | |
53487786 | 329 | xfs_warn(mp, "Failed to initialize disk quotas."); |
7d095257 | 330 | return; |
1da177e4 | 331 | } |
1da177e4 LT |
332 | } |
333 | ||
334 | /* | |
335 | * Called from the vfsops layer. | |
336 | */ | |
e57481dc | 337 | void |
1da177e4 LT |
338 | xfs_qm_unmount_quotas( |
339 | xfs_mount_t *mp) | |
340 | { | |
1da177e4 LT |
341 | /* |
342 | * Release the dquots that root inode, et al might be holding, | |
343 | * before we flush quotas and blow away the quotainfo structure. | |
344 | */ | |
345 | ASSERT(mp->m_rootip); | |
346 | xfs_qm_dqdetach(mp->m_rootip); | |
347 | if (mp->m_rbmip) | |
348 | xfs_qm_dqdetach(mp->m_rbmip); | |
349 | if (mp->m_rsumip) | |
350 | xfs_qm_dqdetach(mp->m_rsumip); | |
351 | ||
352 | /* | |
e57481dc | 353 | * Release the quota inodes. |
1da177e4 | 354 | */ |
1da177e4 | 355 | if (mp->m_quotainfo) { |
e57481dc CH |
356 | if (mp->m_quotainfo->qi_uquotaip) { |
357 | IRELE(mp->m_quotainfo->qi_uquotaip); | |
358 | mp->m_quotainfo->qi_uquotaip = NULL; | |
1da177e4 | 359 | } |
e57481dc CH |
360 | if (mp->m_quotainfo->qi_gquotaip) { |
361 | IRELE(mp->m_quotainfo->qi_gquotaip); | |
362 | mp->m_quotainfo->qi_gquotaip = NULL; | |
1da177e4 LT |
363 | } |
364 | } | |
1da177e4 LT |
365 | } |
366 | ||
1da177e4 LT |
367 | STATIC int |
368 | xfs_qm_dqattach_one( | |
369 | xfs_inode_t *ip, | |
370 | xfs_dqid_t id, | |
371 | uint type, | |
372 | uint doalloc, | |
1da177e4 LT |
373 | xfs_dquot_t *udqhint, /* hint */ |
374 | xfs_dquot_t **IO_idqpp) | |
375 | { | |
376 | xfs_dquot_t *dqp; | |
377 | int error; | |
378 | ||
579aa9ca | 379 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 380 | error = 0; |
8e9b6e7f | 381 | |
1da177e4 LT |
382 | /* |
383 | * See if we already have it in the inode itself. IO_idqpp is | |
384 | * &i_udquot or &i_gdquot. This made the code look weird, but | |
385 | * made the logic a lot simpler. | |
386 | */ | |
8e9b6e7f CH |
387 | dqp = *IO_idqpp; |
388 | if (dqp) { | |
0b1b213f | 389 | trace_xfs_dqattach_found(dqp); |
8e9b6e7f | 390 | return 0; |
1da177e4 LT |
391 | } |
392 | ||
393 | /* | |
394 | * udqhint is the i_udquot field in inode, and is non-NULL only | |
c8ad20ff | 395 | * when the type arg is group/project. Its purpose is to save a |
1da177e4 LT |
396 | * lookup by dqid (xfs_qm_dqget) by caching a group dquot inside |
397 | * the user dquot. | |
398 | */ | |
8e9b6e7f CH |
399 | if (udqhint) { |
400 | ASSERT(type == XFS_DQ_GROUP || type == XFS_DQ_PROJ); | |
1da177e4 LT |
401 | xfs_dqlock(udqhint); |
402 | ||
8e9b6e7f CH |
403 | /* |
404 | * No need to take dqlock to look at the id. | |
405 | * | |
406 | * The ID can't change until it gets reclaimed, and it won't | |
407 | * be reclaimed as long as we have a ref from inode and we | |
408 | * hold the ilock. | |
409 | */ | |
410 | dqp = udqhint->q_gdquot; | |
411 | if (dqp && be32_to_cpu(dqp->q_core.d_id) == id) { | |
8e9b6e7f | 412 | ASSERT(*IO_idqpp == NULL); |
8e9b6e7f | 413 | |
78e55892 | 414 | *IO_idqpp = xfs_qm_dqhold(dqp); |
1da177e4 | 415 | xfs_dqunlock(udqhint); |
8e9b6e7f | 416 | return 0; |
1da177e4 | 417 | } |
8e9b6e7f CH |
418 | |
419 | /* | |
420 | * We can't hold a dquot lock when we call the dqget code. | |
421 | * We'll deadlock in no time, because of (not conforming to) | |
422 | * lock ordering - the inodelock comes before any dquot lock, | |
423 | * and we may drop and reacquire the ilock in xfs_qm_dqget(). | |
424 | */ | |
1da177e4 | 425 | xfs_dqunlock(udqhint); |
8e9b6e7f CH |
426 | } |
427 | ||
1da177e4 LT |
428 | /* |
429 | * Find the dquot from somewhere. This bumps the | |
430 | * reference count of dquot and returns it locked. | |
431 | * This can return ENOENT if dquot didn't exist on | |
432 | * disk and we didn't ask it to allocate; | |
433 | * ESRCH if quotas got turned off suddenly. | |
434 | */ | |
db3e74b5 MH |
435 | error = xfs_qm_dqget(ip->i_mount, ip, id, type, |
436 | doalloc | XFS_QMOPT_DOWARN, &dqp); | |
8e9b6e7f CH |
437 | if (error) |
438 | return error; | |
1da177e4 | 439 | |
0b1b213f | 440 | trace_xfs_dqattach_get(dqp); |
8e9b6e7f | 441 | |
1da177e4 LT |
442 | /* |
443 | * dqget may have dropped and re-acquired the ilock, but it guarantees | |
444 | * that the dquot returned is the one that should go in the inode. | |
445 | */ | |
446 | *IO_idqpp = dqp; | |
8e9b6e7f CH |
447 | xfs_dqunlock(dqp); |
448 | return 0; | |
1da177e4 LT |
449 | } |
450 | ||
451 | ||
452 | /* | |
453 | * Given a udquot and gdquot, attach a ptr to the group dquot in the | |
ab680bb7 | 454 | * udquot as a hint for future lookups. |
1da177e4 LT |
455 | */ |
456 | STATIC void | |
457 | xfs_qm_dqattach_grouphint( | |
458 | xfs_dquot_t *udq, | |
8e9b6e7f | 459 | xfs_dquot_t *gdq) |
1da177e4 LT |
460 | { |
461 | xfs_dquot_t *tmp; | |
462 | ||
8e9b6e7f | 463 | xfs_dqlock(udq); |
1da177e4 | 464 | |
ab680bb7 CH |
465 | tmp = udq->q_gdquot; |
466 | if (tmp) { | |
467 | if (tmp == gdq) | |
468 | goto done; | |
1da177e4 LT |
469 | |
470 | udq->q_gdquot = NULL; | |
1da177e4 | 471 | xfs_qm_dqrele(tmp); |
1da177e4 | 472 | } |
8e9b6e7f | 473 | |
78e55892 | 474 | udq->q_gdquot = xfs_qm_dqhold(gdq); |
ab680bb7 | 475 | done: |
8e9b6e7f | 476 | xfs_dqunlock(udq); |
1da177e4 LT |
477 | } |
478 | ||
b4d05e30 CH |
479 | static bool |
480 | xfs_qm_need_dqattach( | |
481 | struct xfs_inode *ip) | |
482 | { | |
483 | struct xfs_mount *mp = ip->i_mount; | |
484 | ||
485 | if (!XFS_IS_QUOTA_RUNNING(mp)) | |
486 | return false; | |
487 | if (!XFS_IS_QUOTA_ON(mp)) | |
488 | return false; | |
489 | if (!XFS_NOT_DQATTACHED(mp, ip)) | |
490 | return false; | |
491 | if (ip->i_ino == mp->m_sb.sb_uquotino || | |
492 | ip->i_ino == mp->m_sb.sb_gquotino) | |
493 | return false; | |
494 | return true; | |
495 | } | |
1da177e4 LT |
496 | |
497 | /* | |
c8ad20ff NS |
498 | * Given a locked inode, attach dquot(s) to it, taking U/G/P-QUOTAON |
499 | * into account. | |
1da177e4 | 500 | * If XFS_QMOPT_DQALLOC, the dquot(s) will be allocated if needed. |
1da177e4 LT |
501 | * Inode may get unlocked and relocked in here, and the caller must deal with |
502 | * the consequences. | |
503 | */ | |
504 | int | |
7d095257 | 505 | xfs_qm_dqattach_locked( |
1da177e4 LT |
506 | xfs_inode_t *ip, |
507 | uint flags) | |
508 | { | |
509 | xfs_mount_t *mp = ip->i_mount; | |
510 | uint nquotas = 0; | |
511 | int error = 0; | |
512 | ||
b4d05e30 | 513 | if (!xfs_qm_need_dqattach(ip)) |
014c2544 | 514 | return 0; |
1da177e4 | 515 | |
7d095257 | 516 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
517 | |
518 | if (XFS_IS_UQUOTA_ON(mp)) { | |
519 | error = xfs_qm_dqattach_one(ip, ip->i_d.di_uid, XFS_DQ_USER, | |
520 | flags & XFS_QMOPT_DQALLOC, | |
1da177e4 LT |
521 | NULL, &ip->i_udquot); |
522 | if (error) | |
523 | goto done; | |
524 | nquotas++; | |
525 | } | |
579aa9ca CH |
526 | |
527 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); | |
c8ad20ff NS |
528 | if (XFS_IS_OQUOTA_ON(mp)) { |
529 | error = XFS_IS_GQUOTA_ON(mp) ? | |
530 | xfs_qm_dqattach_one(ip, ip->i_d.di_gid, XFS_DQ_GROUP, | |
531 | flags & XFS_QMOPT_DQALLOC, | |
c8ad20ff | 532 | ip->i_udquot, &ip->i_gdquot) : |
6743099c | 533 | xfs_qm_dqattach_one(ip, xfs_get_projid(ip), XFS_DQ_PROJ, |
1da177e4 | 534 | flags & XFS_QMOPT_DQALLOC, |
1da177e4 LT |
535 | ip->i_udquot, &ip->i_gdquot); |
536 | /* | |
537 | * Don't worry about the udquot that we may have | |
538 | * attached above. It'll get detached, if not already. | |
539 | */ | |
540 | if (error) | |
541 | goto done; | |
542 | nquotas++; | |
543 | } | |
544 | ||
545 | /* | |
546 | * Attach this group quota to the user quota as a hint. | |
547 | * This WON'T, in general, result in a thrash. | |
548 | */ | |
549 | if (nquotas == 2) { | |
579aa9ca | 550 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
551 | ASSERT(ip->i_udquot); |
552 | ASSERT(ip->i_gdquot); | |
553 | ||
554 | /* | |
ab680bb7 CH |
555 | * We do not have i_udquot locked at this point, but this check |
556 | * is OK since we don't depend on the i_gdquot to be accurate | |
557 | * 100% all the time. It is just a hint, and this will | |
558 | * succeed in general. | |
1da177e4 | 559 | */ |
ab680bb7 CH |
560 | if (ip->i_udquot->q_gdquot != ip->i_gdquot) |
561 | xfs_qm_dqattach_grouphint(ip->i_udquot, ip->i_gdquot); | |
1da177e4 LT |
562 | } |
563 | ||
7d095257 | 564 | done: |
ea15ab3c CH |
565 | #ifdef DEBUG |
566 | if (!error) { | |
1da177e4 LT |
567 | if (XFS_IS_UQUOTA_ON(mp)) |
568 | ASSERT(ip->i_udquot); | |
c8ad20ff | 569 | if (XFS_IS_OQUOTA_ON(mp)) |
1da177e4 LT |
570 | ASSERT(ip->i_gdquot); |
571 | } | |
7d095257 | 572 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 573 | #endif |
7d095257 CH |
574 | return error; |
575 | } | |
1da177e4 | 576 | |
7d095257 CH |
577 | int |
578 | xfs_qm_dqattach( | |
579 | struct xfs_inode *ip, | |
580 | uint flags) | |
581 | { | |
582 | int error; | |
583 | ||
b4d05e30 CH |
584 | if (!xfs_qm_need_dqattach(ip)) |
585 | return 0; | |
586 | ||
7d095257 CH |
587 | xfs_ilock(ip, XFS_ILOCK_EXCL); |
588 | error = xfs_qm_dqattach_locked(ip, flags); | |
589 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1da177e4 | 590 | |
014c2544 | 591 | return error; |
1da177e4 LT |
592 | } |
593 | ||
594 | /* | |
595 | * Release dquots (and their references) if any. | |
596 | * The inode should be locked EXCL except when this's called by | |
597 | * xfs_ireclaim. | |
598 | */ | |
599 | void | |
600 | xfs_qm_dqdetach( | |
601 | xfs_inode_t *ip) | |
602 | { | |
603 | if (!(ip->i_udquot || ip->i_gdquot)) | |
604 | return; | |
605 | ||
0b1b213f CH |
606 | trace_xfs_dquot_dqdetach(ip); |
607 | ||
1da177e4 LT |
608 | ASSERT(ip->i_ino != ip->i_mount->m_sb.sb_uquotino); |
609 | ASSERT(ip->i_ino != ip->i_mount->m_sb.sb_gquotino); | |
1da177e4 LT |
610 | if (ip->i_udquot) { |
611 | xfs_qm_dqrele(ip->i_udquot); | |
612 | ip->i_udquot = NULL; | |
613 | } | |
614 | if (ip->i_gdquot) { | |
615 | xfs_qm_dqrele(ip->i_gdquot); | |
616 | ip->i_gdquot = NULL; | |
617 | } | |
618 | } | |
619 | ||
1da177e4 LT |
620 | /* |
621 | * This initializes all the quota information that's kept in the | |
622 | * mount structure | |
623 | */ | |
ba0f32d4 | 624 | STATIC int |
1da177e4 LT |
625 | xfs_qm_init_quotainfo( |
626 | xfs_mount_t *mp) | |
627 | { | |
628 | xfs_quotainfo_t *qinf; | |
629 | int error; | |
630 | xfs_dquot_t *dqp; | |
631 | ||
632 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
633 | ||
1da177e4 LT |
634 | qinf = mp->m_quotainfo = kmem_zalloc(sizeof(xfs_quotainfo_t), KM_SLEEP); |
635 | ||
636 | /* | |
637 | * See if quotainodes are setup, and if not, allocate them, | |
638 | * and change the superblock accordingly. | |
639 | */ | |
640 | if ((error = xfs_qm_init_quotainos(mp))) { | |
f0e2d93c | 641 | kmem_free(qinf); |
1da177e4 | 642 | mp->m_quotainfo = NULL; |
014c2544 | 643 | return error; |
1da177e4 LT |
644 | } |
645 | ||
9f920f11 CH |
646 | INIT_RADIX_TREE(&qinf->qi_uquota_tree, GFP_NOFS); |
647 | INIT_RADIX_TREE(&qinf->qi_gquota_tree, GFP_NOFS); | |
648 | mutex_init(&qinf->qi_tree_lock); | |
649 | ||
f8739c3c CH |
650 | INIT_LIST_HEAD(&qinf->qi_lru_list); |
651 | qinf->qi_lru_count = 0; | |
652 | mutex_init(&qinf->qi_lru_lock); | |
653 | ||
1da177e4 | 654 | /* mutex used to serialize quotaoffs */ |
794ee1ba | 655 | mutex_init(&qinf->qi_quotaofflock); |
1da177e4 LT |
656 | |
657 | /* Precalc some constants */ | |
658 | qinf->qi_dqchunklen = XFS_FSB_TO_BB(mp, XFS_DQUOT_CLUSTER_SIZE_FSB); | |
659 | ASSERT(qinf->qi_dqchunklen); | |
660 | qinf->qi_dqperchunk = BBTOB(qinf->qi_dqchunklen); | |
661 | do_div(qinf->qi_dqperchunk, sizeof(xfs_dqblk_t)); | |
662 | ||
663 | mp->m_qflags |= (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_CHKD); | |
664 | ||
665 | /* | |
666 | * We try to get the limits from the superuser's limits fields. | |
667 | * This is quite hacky, but it is standard quota practice. | |
7ae44407 | 668 | * |
1da177e4 LT |
669 | * We look at the USR dquot with id == 0 first, but if user quotas |
670 | * are not enabled we goto the GRP dquot with id == 0. | |
671 | * We don't really care to keep separate default limits for user | |
672 | * and group quotas, at least not at this point. | |
7ae44407 CH |
673 | * |
674 | * Since we may not have done a quotacheck by this point, just read | |
675 | * the dquot without attaching it to any hashtables or lists. | |
1da177e4 | 676 | */ |
7ae44407 CH |
677 | error = xfs_qm_dqread(mp, 0, |
678 | XFS_IS_UQUOTA_RUNNING(mp) ? XFS_DQ_USER : | |
679 | (XFS_IS_GQUOTA_RUNNING(mp) ? XFS_DQ_GROUP : | |
680 | XFS_DQ_PROJ), | |
681 | XFS_QMOPT_DOWARN, &dqp); | |
682 | if (!error) { | |
1da177e4 LT |
683 | xfs_disk_dquot_t *ddqp = &dqp->q_core; |
684 | ||
685 | /* | |
686 | * The warnings and timers set the grace period given to | |
687 | * a user or group before he or she can not perform any | |
688 | * more writing. If it is zero, a default is used. | |
689 | */ | |
1149d96a CH |
690 | qinf->qi_btimelimit = ddqp->d_btimer ? |
691 | be32_to_cpu(ddqp->d_btimer) : XFS_QM_BTIMELIMIT; | |
692 | qinf->qi_itimelimit = ddqp->d_itimer ? | |
693 | be32_to_cpu(ddqp->d_itimer) : XFS_QM_ITIMELIMIT; | |
694 | qinf->qi_rtbtimelimit = ddqp->d_rtbtimer ? | |
695 | be32_to_cpu(ddqp->d_rtbtimer) : XFS_QM_RTBTIMELIMIT; | |
696 | qinf->qi_bwarnlimit = ddqp->d_bwarns ? | |
697 | be16_to_cpu(ddqp->d_bwarns) : XFS_QM_BWARNLIMIT; | |
698 | qinf->qi_iwarnlimit = ddqp->d_iwarns ? | |
699 | be16_to_cpu(ddqp->d_iwarns) : XFS_QM_IWARNLIMIT; | |
700 | qinf->qi_rtbwarnlimit = ddqp->d_rtbwarns ? | |
701 | be16_to_cpu(ddqp->d_rtbwarns) : XFS_QM_RTBWARNLIMIT; | |
702 | qinf->qi_bhardlimit = be64_to_cpu(ddqp->d_blk_hardlimit); | |
703 | qinf->qi_bsoftlimit = be64_to_cpu(ddqp->d_blk_softlimit); | |
704 | qinf->qi_ihardlimit = be64_to_cpu(ddqp->d_ino_hardlimit); | |
705 | qinf->qi_isoftlimit = be64_to_cpu(ddqp->d_ino_softlimit); | |
706 | qinf->qi_rtbhardlimit = be64_to_cpu(ddqp->d_rtb_hardlimit); | |
707 | qinf->qi_rtbsoftlimit = be64_to_cpu(ddqp->d_rtb_softlimit); | |
1da177e4 | 708 | |
1da177e4 LT |
709 | xfs_qm_dqdestroy(dqp); |
710 | } else { | |
711 | qinf->qi_btimelimit = XFS_QM_BTIMELIMIT; | |
712 | qinf->qi_itimelimit = XFS_QM_ITIMELIMIT; | |
713 | qinf->qi_rtbtimelimit = XFS_QM_RTBTIMELIMIT; | |
714 | qinf->qi_bwarnlimit = XFS_QM_BWARNLIMIT; | |
715 | qinf->qi_iwarnlimit = XFS_QM_IWARNLIMIT; | |
06d10dd9 | 716 | qinf->qi_rtbwarnlimit = XFS_QM_RTBWARNLIMIT; |
1da177e4 LT |
717 | } |
718 | ||
f8739c3c CH |
719 | qinf->qi_shrinker.shrink = xfs_qm_shake; |
720 | qinf->qi_shrinker.seeks = DEFAULT_SEEKS; | |
721 | register_shrinker(&qinf->qi_shrinker); | |
014c2544 | 722 | return 0; |
1da177e4 LT |
723 | } |
724 | ||
725 | ||
726 | /* | |
727 | * Gets called when unmounting a filesystem or when all quotas get | |
728 | * turned off. | |
729 | * This purges the quota inodes, destroys locks and frees itself. | |
730 | */ | |
731 | void | |
732 | xfs_qm_destroy_quotainfo( | |
733 | xfs_mount_t *mp) | |
734 | { | |
735 | xfs_quotainfo_t *qi; | |
736 | ||
737 | qi = mp->m_quotainfo; | |
738 | ASSERT(qi != NULL); | |
1da177e4 | 739 | |
f8739c3c CH |
740 | unregister_shrinker(&qi->qi_shrinker); |
741 | ||
1da177e4 | 742 | if (qi->qi_uquotaip) { |
26cc0021 | 743 | IRELE(qi->qi_uquotaip); |
1da177e4 LT |
744 | qi->qi_uquotaip = NULL; /* paranoia */ |
745 | } | |
746 | if (qi->qi_gquotaip) { | |
26cc0021 | 747 | IRELE(qi->qi_gquotaip); |
1da177e4 LT |
748 | qi->qi_gquotaip = NULL; |
749 | } | |
750 | mutex_destroy(&qi->qi_quotaofflock); | |
f0e2d93c | 751 | kmem_free(qi); |
1da177e4 LT |
752 | mp->m_quotainfo = NULL; |
753 | } | |
754 | ||
1da177e4 LT |
755 | /* |
756 | * Create an inode and return with a reference already taken, but unlocked | |
757 | * This is how we create quota inodes | |
758 | */ | |
759 | STATIC int | |
760 | xfs_qm_qino_alloc( | |
761 | xfs_mount_t *mp, | |
762 | xfs_inode_t **ip, | |
763 | __int64_t sbfields, | |
764 | uint flags) | |
765 | { | |
766 | xfs_trans_t *tp; | |
767 | int error; | |
1da177e4 LT |
768 | int committed; |
769 | ||
061f7209 | 770 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QINOCREATE); |
1da177e4 LT |
771 | if ((error = xfs_trans_reserve(tp, |
772 | XFS_QM_QINOCREATE_SPACE_RES(mp), | |
773 | XFS_CREATE_LOG_RES(mp), 0, | |
774 | XFS_TRANS_PERM_LOG_RES, | |
775 | XFS_CREATE_LOG_COUNT))) { | |
776 | xfs_trans_cancel(tp, 0); | |
014c2544 | 777 | return error; |
1da177e4 | 778 | } |
1da177e4 | 779 | |
6c77b0ea CH |
780 | error = xfs_dir_ialloc(&tp, NULL, S_IFREG, 1, 0, 0, 1, ip, &committed); |
781 | if (error) { | |
1da177e4 LT |
782 | xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | |
783 | XFS_TRANS_ABORT); | |
014c2544 | 784 | return error; |
1da177e4 LT |
785 | } |
786 | ||
1da177e4 LT |
787 | /* |
788 | * Make the changes in the superblock, and log those too. | |
789 | * sbfields arg may contain fields other than *QUOTINO; | |
790 | * VERSIONNUM for example. | |
791 | */ | |
3685c2a1 | 792 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 793 | if (flags & XFS_QMOPT_SBVERSION) { |
62118709 | 794 | ASSERT(!xfs_sb_version_hasquota(&mp->m_sb)); |
1da177e4 LT |
795 | ASSERT((sbfields & (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | |
796 | XFS_SB_GQUOTINO | XFS_SB_QFLAGS)) == | |
797 | (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | | |
798 | XFS_SB_GQUOTINO | XFS_SB_QFLAGS)); | |
799 | ||
62118709 | 800 | xfs_sb_version_addquota(&mp->m_sb); |
1da177e4 LT |
801 | mp->m_sb.sb_uquotino = NULLFSINO; |
802 | mp->m_sb.sb_gquotino = NULLFSINO; | |
803 | ||
804 | /* qflags will get updated _after_ quotacheck */ | |
805 | mp->m_sb.sb_qflags = 0; | |
1da177e4 LT |
806 | } |
807 | if (flags & XFS_QMOPT_UQUOTA) | |
808 | mp->m_sb.sb_uquotino = (*ip)->i_ino; | |
809 | else | |
810 | mp->m_sb.sb_gquotino = (*ip)->i_ino; | |
3685c2a1 | 811 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
812 | xfs_mod_sb(tp, sbfields); |
813 | ||
1c72bf90 | 814 | if ((error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES))) { |
53487786 | 815 | xfs_alert(mp, "%s failed (error %d)!", __func__, error); |
014c2544 | 816 | return error; |
1da177e4 | 817 | } |
014c2544 | 818 | return 0; |
1da177e4 LT |
819 | } |
820 | ||
821 | ||
5b139738 | 822 | STATIC void |
1da177e4 LT |
823 | xfs_qm_reset_dqcounts( |
824 | xfs_mount_t *mp, | |
825 | xfs_buf_t *bp, | |
826 | xfs_dqid_t id, | |
827 | uint type) | |
828 | { | |
829 | xfs_disk_dquot_t *ddq; | |
830 | int j; | |
831 | ||
0b1b213f CH |
832 | trace_xfs_reset_dqcounts(bp, _RET_IP_); |
833 | ||
1da177e4 LT |
834 | /* |
835 | * Reset all counters and timers. They'll be | |
836 | * started afresh by xfs_qm_quotacheck. | |
837 | */ | |
838 | #ifdef DEBUG | |
839 | j = XFS_FSB_TO_B(mp, XFS_DQUOT_CLUSTER_SIZE_FSB); | |
840 | do_div(j, sizeof(xfs_dqblk_t)); | |
8a7b8a89 | 841 | ASSERT(mp->m_quotainfo->qi_dqperchunk == j); |
1da177e4 | 842 | #endif |
62926044 | 843 | ddq = bp->b_addr; |
8a7b8a89 | 844 | for (j = 0; j < mp->m_quotainfo->qi_dqperchunk; j++) { |
1da177e4 LT |
845 | /* |
846 | * Do a sanity check, and if needed, repair the dqblk. Don't | |
847 | * output any warnings because it's perfectly possible to | |
c41564b5 | 848 | * find uninitialised dquot blks. See comment in xfs_qm_dqcheck. |
1da177e4 | 849 | */ |
a0fa2b67 | 850 | (void) xfs_qm_dqcheck(mp, ddq, id+j, type, XFS_QMOPT_DQREPAIR, |
1da177e4 | 851 | "xfs_quotacheck"); |
1149d96a CH |
852 | ddq->d_bcount = 0; |
853 | ddq->d_icount = 0; | |
854 | ddq->d_rtbcount = 0; | |
855 | ddq->d_btimer = 0; | |
856 | ddq->d_itimer = 0; | |
857 | ddq->d_rtbtimer = 0; | |
858 | ddq->d_bwarns = 0; | |
859 | ddq->d_iwarns = 0; | |
860 | ddq->d_rtbwarns = 0; | |
1da177e4 LT |
861 | ddq = (xfs_disk_dquot_t *) ((xfs_dqblk_t *)ddq + 1); |
862 | } | |
1da177e4 LT |
863 | } |
864 | ||
865 | STATIC int | |
866 | xfs_qm_dqiter_bufs( | |
43ff2122 CH |
867 | struct xfs_mount *mp, |
868 | xfs_dqid_t firstid, | |
869 | xfs_fsblock_t bno, | |
870 | xfs_filblks_t blkcnt, | |
871 | uint flags, | |
872 | struct list_head *buffer_list) | |
1da177e4 | 873 | { |
43ff2122 CH |
874 | struct xfs_buf *bp; |
875 | int error; | |
876 | int type; | |
1da177e4 LT |
877 | |
878 | ASSERT(blkcnt > 0); | |
c8ad20ff NS |
879 | type = flags & XFS_QMOPT_UQUOTA ? XFS_DQ_USER : |
880 | (flags & XFS_QMOPT_PQUOTA ? XFS_DQ_PROJ : XFS_DQ_GROUP); | |
1da177e4 LT |
881 | error = 0; |
882 | ||
883 | /* | |
884 | * Blkcnt arg can be a very big number, and might even be | |
885 | * larger than the log itself. So, we have to break it up into | |
886 | * manageable-sized transactions. | |
887 | * Note that we don't start a permanent transaction here; we might | |
888 | * not be able to get a log reservation for the whole thing up front, | |
889 | * and we don't really care to either, because we just discard | |
890 | * everything if we were to crash in the middle of this loop. | |
891 | */ | |
892 | while (blkcnt--) { | |
893 | error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, | |
894 | XFS_FSB_TO_DADDR(mp, bno), | |
8a7b8a89 | 895 | mp->m_quotainfo->qi_dqchunklen, 0, &bp); |
1da177e4 LT |
896 | if (error) |
897 | break; | |
898 | ||
5b139738 | 899 | xfs_qm_reset_dqcounts(mp, bp, firstid, type); |
43ff2122 | 900 | xfs_buf_delwri_queue(bp, buffer_list); |
61551f1e | 901 | xfs_buf_relse(bp); |
1da177e4 LT |
902 | /* |
903 | * goto the next block. | |
904 | */ | |
905 | bno++; | |
8a7b8a89 | 906 | firstid += mp->m_quotainfo->qi_dqperchunk; |
1da177e4 | 907 | } |
43ff2122 | 908 | |
014c2544 | 909 | return error; |
1da177e4 LT |
910 | } |
911 | ||
912 | /* | |
c8ad20ff | 913 | * Iterate over all allocated USR/GRP/PRJ dquots in the system, calling a |
1da177e4 LT |
914 | * caller supplied function for every chunk of dquots that we find. |
915 | */ | |
916 | STATIC int | |
917 | xfs_qm_dqiterate( | |
43ff2122 CH |
918 | struct xfs_mount *mp, |
919 | struct xfs_inode *qip, | |
920 | uint flags, | |
921 | struct list_head *buffer_list) | |
1da177e4 | 922 | { |
43ff2122 | 923 | struct xfs_bmbt_irec *map; |
1da177e4 LT |
924 | int i, nmaps; /* number of map entries */ |
925 | int error; /* return value */ | |
926 | xfs_fileoff_t lblkno; | |
927 | xfs_filblks_t maxlblkcnt; | |
928 | xfs_dqid_t firstid; | |
929 | xfs_fsblock_t rablkno; | |
930 | xfs_filblks_t rablkcnt; | |
931 | ||
932 | error = 0; | |
933 | /* | |
c41564b5 | 934 | * This looks racy, but we can't keep an inode lock across a |
1da177e4 LT |
935 | * trans_reserve. But, this gets called during quotacheck, and that |
936 | * happens only at mount time which is single threaded. | |
937 | */ | |
938 | if (qip->i_d.di_nblocks == 0) | |
014c2544 | 939 | return 0; |
1da177e4 LT |
940 | |
941 | map = kmem_alloc(XFS_DQITER_MAP_SIZE * sizeof(*map), KM_SLEEP); | |
942 | ||
943 | lblkno = 0; | |
32972383 | 944 | maxlblkcnt = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes); |
1da177e4 LT |
945 | do { |
946 | nmaps = XFS_DQITER_MAP_SIZE; | |
947 | /* | |
948 | * We aren't changing the inode itself. Just changing | |
949 | * some of its data. No new blocks are added here, and | |
950 | * the inode is never added to the transaction. | |
951 | */ | |
952 | xfs_ilock(qip, XFS_ILOCK_SHARED); | |
5c8ed202 DC |
953 | error = xfs_bmapi_read(qip, lblkno, maxlblkcnt - lblkno, |
954 | map, &nmaps, 0); | |
1da177e4 LT |
955 | xfs_iunlock(qip, XFS_ILOCK_SHARED); |
956 | if (error) | |
957 | break; | |
958 | ||
959 | ASSERT(nmaps <= XFS_DQITER_MAP_SIZE); | |
960 | for (i = 0; i < nmaps; i++) { | |
961 | ASSERT(map[i].br_startblock != DELAYSTARTBLOCK); | |
962 | ASSERT(map[i].br_blockcount); | |
963 | ||
964 | ||
965 | lblkno += map[i].br_blockcount; | |
966 | ||
967 | if (map[i].br_startblock == HOLESTARTBLOCK) | |
968 | continue; | |
969 | ||
970 | firstid = (xfs_dqid_t) map[i].br_startoff * | |
8a7b8a89 | 971 | mp->m_quotainfo->qi_dqperchunk; |
1da177e4 LT |
972 | /* |
973 | * Do a read-ahead on the next extent. | |
974 | */ | |
975 | if ((i+1 < nmaps) && | |
976 | (map[i+1].br_startblock != HOLESTARTBLOCK)) { | |
977 | rablkcnt = map[i+1].br_blockcount; | |
978 | rablkno = map[i+1].br_startblock; | |
979 | while (rablkcnt--) { | |
1a1a3e97 | 980 | xfs_buf_readahead(mp->m_ddev_targp, |
1da177e4 | 981 | XFS_FSB_TO_DADDR(mp, rablkno), |
8a7b8a89 | 982 | mp->m_quotainfo->qi_dqchunklen); |
1da177e4 LT |
983 | rablkno++; |
984 | } | |
985 | } | |
986 | /* | |
987 | * Iterate thru all the blks in the extent and | |
988 | * reset the counters of all the dquots inside them. | |
989 | */ | |
43ff2122 CH |
990 | error = xfs_qm_dqiter_bufs(mp, firstid, |
991 | map[i].br_startblock, | |
992 | map[i].br_blockcount, | |
993 | flags, buffer_list); | |
994 | if (error) | |
995 | goto out; | |
1da177e4 | 996 | } |
1da177e4 LT |
997 | } while (nmaps > 0); |
998 | ||
43ff2122 | 999 | out: |
f0e2d93c | 1000 | kmem_free(map); |
014c2544 | 1001 | return error; |
1da177e4 LT |
1002 | } |
1003 | ||
1004 | /* | |
1005 | * Called by dqusage_adjust in doing a quotacheck. | |
52fda114 CH |
1006 | * |
1007 | * Given the inode, and a dquot id this updates both the incore dqout as well | |
1008 | * as the buffer copy. This is so that once the quotacheck is done, we can | |
1009 | * just log all the buffers, as opposed to logging numerous updates to | |
1010 | * individual dquots. | |
1da177e4 | 1011 | */ |
52fda114 | 1012 | STATIC int |
1da177e4 | 1013 | xfs_qm_quotacheck_dqadjust( |
52fda114 CH |
1014 | struct xfs_inode *ip, |
1015 | xfs_dqid_t id, | |
1016 | uint type, | |
1da177e4 LT |
1017 | xfs_qcnt_t nblks, |
1018 | xfs_qcnt_t rtblks) | |
1019 | { | |
52fda114 CH |
1020 | struct xfs_mount *mp = ip->i_mount; |
1021 | struct xfs_dquot *dqp; | |
1022 | int error; | |
1023 | ||
1024 | error = xfs_qm_dqget(mp, ip, id, type, | |
1025 | XFS_QMOPT_DQALLOC | XFS_QMOPT_DOWARN, &dqp); | |
1026 | if (error) { | |
1027 | /* | |
1028 | * Shouldn't be able to turn off quotas here. | |
1029 | */ | |
1030 | ASSERT(error != ESRCH); | |
1031 | ASSERT(error != ENOENT); | |
1032 | return error; | |
1033 | } | |
0b1b213f CH |
1034 | |
1035 | trace_xfs_dqadjust(dqp); | |
1036 | ||
1da177e4 LT |
1037 | /* |
1038 | * Adjust the inode count and the block count to reflect this inode's | |
1039 | * resource usage. | |
1040 | */ | |
413d57c9 | 1041 | be64_add_cpu(&dqp->q_core.d_icount, 1); |
1da177e4 LT |
1042 | dqp->q_res_icount++; |
1043 | if (nblks) { | |
413d57c9 | 1044 | be64_add_cpu(&dqp->q_core.d_bcount, nblks); |
1da177e4 LT |
1045 | dqp->q_res_bcount += nblks; |
1046 | } | |
1047 | if (rtblks) { | |
413d57c9 | 1048 | be64_add_cpu(&dqp->q_core.d_rtbcount, rtblks); |
1da177e4 LT |
1049 | dqp->q_res_rtbcount += rtblks; |
1050 | } | |
1051 | ||
1052 | /* | |
1053 | * Set default limits, adjust timers (since we changed usages) | |
191f8488 CH |
1054 | * |
1055 | * There are no timers for the default values set in the root dquot. | |
1da177e4 | 1056 | */ |
191f8488 | 1057 | if (dqp->q_core.d_id) { |
52fda114 CH |
1058 | xfs_qm_adjust_dqlimits(mp, &dqp->q_core); |
1059 | xfs_qm_adjust_dqtimers(mp, &dqp->q_core); | |
1da177e4 LT |
1060 | } |
1061 | ||
1062 | dqp->dq_flags |= XFS_DQ_DIRTY; | |
52fda114 CH |
1063 | xfs_qm_dqput(dqp); |
1064 | return 0; | |
1da177e4 LT |
1065 | } |
1066 | ||
1067 | STATIC int | |
1068 | xfs_qm_get_rtblks( | |
1069 | xfs_inode_t *ip, | |
1070 | xfs_qcnt_t *O_rtblks) | |
1071 | { | |
1072 | xfs_filblks_t rtblks; /* total rt blks */ | |
4eea22f0 | 1073 | xfs_extnum_t idx; /* extent record index */ |
1da177e4 LT |
1074 | xfs_ifork_t *ifp; /* inode fork pointer */ |
1075 | xfs_extnum_t nextents; /* number of extent entries */ | |
1da177e4 LT |
1076 | int error; |
1077 | ||
1078 | ASSERT(XFS_IS_REALTIME_INODE(ip)); | |
1079 | ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK); | |
1080 | if (!(ifp->if_flags & XFS_IFEXTENTS)) { | |
1081 | if ((error = xfs_iread_extents(NULL, ip, XFS_DATA_FORK))) | |
014c2544 | 1082 | return error; |
1da177e4 LT |
1083 | } |
1084 | rtblks = 0; | |
4eea22f0 | 1085 | nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t); |
a6f64d4a CH |
1086 | for (idx = 0; idx < nextents; idx++) |
1087 | rtblks += xfs_bmbt_get_blockcount(xfs_iext_get_ext(ifp, idx)); | |
1da177e4 | 1088 | *O_rtblks = (xfs_qcnt_t)rtblks; |
014c2544 | 1089 | return 0; |
1da177e4 LT |
1090 | } |
1091 | ||
1092 | /* | |
1093 | * callback routine supplied to bulkstat(). Given an inumber, find its | |
1094 | * dquots and update them to account for resources taken by that inode. | |
1095 | */ | |
1096 | /* ARGSUSED */ | |
1097 | STATIC int | |
1098 | xfs_qm_dqusage_adjust( | |
1099 | xfs_mount_t *mp, /* mount point for filesystem */ | |
1100 | xfs_ino_t ino, /* inode number to get data for */ | |
1101 | void __user *buffer, /* not used */ | |
1102 | int ubsize, /* not used */ | |
1da177e4 | 1103 | int *ubused, /* not used */ |
1da177e4 LT |
1104 | int *res) /* result code value */ |
1105 | { | |
1106 | xfs_inode_t *ip; | |
52fda114 | 1107 | xfs_qcnt_t nblks, rtblks = 0; |
1da177e4 LT |
1108 | int error; |
1109 | ||
1110 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
1111 | ||
1112 | /* | |
1113 | * rootino must have its resources accounted for, not so with the quota | |
1114 | * inodes. | |
1115 | */ | |
1116 | if (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino) { | |
1117 | *res = BULKSTAT_RV_NOTHING; | |
1118 | return XFS_ERROR(EINVAL); | |
1119 | } | |
1120 | ||
1121 | /* | |
1122 | * We don't _need_ to take the ilock EXCL. However, the xfs_qm_dqget | |
1123 | * interface expects the inode to be exclusively locked because that's | |
1124 | * the case in all other instances. It's OK that we do this because | |
1125 | * quotacheck is done only at mount time. | |
1126 | */ | |
52fda114 CH |
1127 | error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_EXCL, &ip); |
1128 | if (error) { | |
1da177e4 | 1129 | *res = BULKSTAT_RV_NOTHING; |
014c2544 | 1130 | return error; |
1da177e4 LT |
1131 | } |
1132 | ||
52fda114 | 1133 | ASSERT(ip->i_delayed_blks == 0); |
1da177e4 | 1134 | |
52fda114 | 1135 | if (XFS_IS_REALTIME_INODE(ip)) { |
1da177e4 LT |
1136 | /* |
1137 | * Walk thru the extent list and count the realtime blocks. | |
1138 | */ | |
52fda114 CH |
1139 | error = xfs_qm_get_rtblks(ip, &rtblks); |
1140 | if (error) | |
1141 | goto error0; | |
1da177e4 | 1142 | } |
1da177e4 | 1143 | |
52fda114 | 1144 | nblks = (xfs_qcnt_t)ip->i_d.di_nblocks - rtblks; |
1da177e4 LT |
1145 | |
1146 | /* | |
1147 | * Add the (disk blocks and inode) resources occupied by this | |
1148 | * inode to its dquots. We do this adjustment in the incore dquot, | |
1149 | * and also copy the changes to its buffer. | |
1150 | * We don't care about putting these changes in a transaction | |
1151 | * envelope because if we crash in the middle of a 'quotacheck' | |
1152 | * we have to start from the beginning anyway. | |
1153 | * Once we're done, we'll log all the dquot bufs. | |
1154 | * | |
c41564b5 | 1155 | * The *QUOTA_ON checks below may look pretty racy, but quotachecks |
1da177e4 LT |
1156 | * and quotaoffs don't race. (Quotachecks happen at mount time only). |
1157 | */ | |
1158 | if (XFS_IS_UQUOTA_ON(mp)) { | |
52fda114 CH |
1159 | error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_uid, |
1160 | XFS_DQ_USER, nblks, rtblks); | |
1161 | if (error) | |
1162 | goto error0; | |
1da177e4 | 1163 | } |
52fda114 CH |
1164 | |
1165 | if (XFS_IS_GQUOTA_ON(mp)) { | |
1166 | error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_gid, | |
1167 | XFS_DQ_GROUP, nblks, rtblks); | |
1168 | if (error) | |
1169 | goto error0; | |
1da177e4 | 1170 | } |
1da177e4 | 1171 | |
52fda114 | 1172 | if (XFS_IS_PQUOTA_ON(mp)) { |
6743099c | 1173 | error = xfs_qm_quotacheck_dqadjust(ip, xfs_get_projid(ip), |
52fda114 CH |
1174 | XFS_DQ_PROJ, nblks, rtblks); |
1175 | if (error) | |
1176 | goto error0; | |
1177 | } | |
1178 | ||
1179 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1180 | IRELE(ip); | |
1da177e4 | 1181 | *res = BULKSTAT_RV_DIDONE; |
014c2544 | 1182 | return 0; |
52fda114 CH |
1183 | |
1184 | error0: | |
1185 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1186 | IRELE(ip); | |
1187 | *res = BULKSTAT_RV_GIVEUP; | |
1188 | return error; | |
1da177e4 LT |
1189 | } |
1190 | ||
b84a3a96 CH |
1191 | STATIC int |
1192 | xfs_qm_flush_one( | |
43ff2122 CH |
1193 | struct xfs_dquot *dqp, |
1194 | void *data) | |
b84a3a96 | 1195 | { |
43ff2122 | 1196 | struct list_head *buffer_list = data; |
fe7257fd | 1197 | struct xfs_buf *bp = NULL; |
b84a3a96 CH |
1198 | int error = 0; |
1199 | ||
1200 | xfs_dqlock(dqp); | |
1201 | if (dqp->dq_flags & XFS_DQ_FREEING) | |
1202 | goto out_unlock; | |
1203 | if (!XFS_DQ_IS_DIRTY(dqp)) | |
1204 | goto out_unlock; | |
1205 | ||
43ff2122 | 1206 | xfs_dqflock(dqp); |
fe7257fd CH |
1207 | error = xfs_qm_dqflush(dqp, &bp); |
1208 | if (error) | |
1209 | goto out_unlock; | |
b84a3a96 | 1210 | |
43ff2122 | 1211 | xfs_buf_delwri_queue(bp, buffer_list); |
fe7257fd | 1212 | xfs_buf_relse(bp); |
b84a3a96 CH |
1213 | out_unlock: |
1214 | xfs_dqunlock(dqp); | |
1215 | return error; | |
1216 | } | |
1217 | ||
1da177e4 LT |
1218 | /* |
1219 | * Walk thru all the filesystem inodes and construct a consistent view | |
1220 | * of the disk quota world. If the quotacheck fails, disable quotas. | |
1221 | */ | |
1222 | int | |
1223 | xfs_qm_quotacheck( | |
1224 | xfs_mount_t *mp) | |
1225 | { | |
b84a3a96 | 1226 | int done, count, error, error2; |
1da177e4 LT |
1227 | xfs_ino_t lastino; |
1228 | size_t structsz; | |
1229 | xfs_inode_t *uip, *gip; | |
1230 | uint flags; | |
43ff2122 | 1231 | LIST_HEAD (buffer_list); |
1da177e4 LT |
1232 | |
1233 | count = INT_MAX; | |
1234 | structsz = 1; | |
1235 | lastino = 0; | |
1236 | flags = 0; | |
1237 | ||
8a7b8a89 | 1238 | ASSERT(mp->m_quotainfo->qi_uquotaip || mp->m_quotainfo->qi_gquotaip); |
1da177e4 LT |
1239 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1240 | ||
0b932ccc | 1241 | xfs_notice(mp, "Quotacheck needed: Please wait."); |
1da177e4 LT |
1242 | |
1243 | /* | |
c8ad20ff | 1244 | * First we go thru all the dquots on disk, USR and GRP/PRJ, and reset |
1da177e4 LT |
1245 | * their counters to zero. We need a clean slate. |
1246 | * We don't log our changes till later. | |
1247 | */ | |
8a7b8a89 CH |
1248 | uip = mp->m_quotainfo->qi_uquotaip; |
1249 | if (uip) { | |
43ff2122 CH |
1250 | error = xfs_qm_dqiterate(mp, uip, XFS_QMOPT_UQUOTA, |
1251 | &buffer_list); | |
8a7b8a89 | 1252 | if (error) |
1da177e4 LT |
1253 | goto error_return; |
1254 | flags |= XFS_UQUOTA_CHKD; | |
1255 | } | |
1256 | ||
8a7b8a89 CH |
1257 | gip = mp->m_quotainfo->qi_gquotaip; |
1258 | if (gip) { | |
1259 | error = xfs_qm_dqiterate(mp, gip, XFS_IS_GQUOTA_ON(mp) ? | |
43ff2122 CH |
1260 | XFS_QMOPT_GQUOTA : XFS_QMOPT_PQUOTA, |
1261 | &buffer_list); | |
8a7b8a89 | 1262 | if (error) |
1da177e4 | 1263 | goto error_return; |
c8ad20ff | 1264 | flags |= XFS_OQUOTA_CHKD; |
1da177e4 LT |
1265 | } |
1266 | ||
1267 | do { | |
1268 | /* | |
1269 | * Iterate thru all the inodes in the file system, | |
1270 | * adjusting the corresponding dquot counters in core. | |
1271 | */ | |
7dce11db CH |
1272 | error = xfs_bulkstat(mp, &lastino, &count, |
1273 | xfs_qm_dqusage_adjust, | |
1274 | structsz, NULL, &done); | |
1275 | if (error) | |
1da177e4 LT |
1276 | break; |
1277 | ||
7dce11db | 1278 | } while (!done); |
1da177e4 | 1279 | |
4b8879df | 1280 | /* |
b84a3a96 CH |
1281 | * We've made all the changes that we need to make incore. Flush them |
1282 | * down to disk buffers if everything was updated successfully. | |
4b8879df | 1283 | */ |
43ff2122 CH |
1284 | if (XFS_IS_UQUOTA_ON(mp)) { |
1285 | error = xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_flush_one, | |
1286 | &buffer_list); | |
1287 | } | |
b84a3a96 | 1288 | if (XFS_IS_GQUOTA_ON(mp)) { |
43ff2122 CH |
1289 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_flush_one, |
1290 | &buffer_list); | |
b84a3a96 CH |
1291 | if (!error) |
1292 | error = error2; | |
1293 | } | |
1294 | if (XFS_IS_PQUOTA_ON(mp)) { | |
43ff2122 CH |
1295 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_flush_one, |
1296 | &buffer_list); | |
b84a3a96 CH |
1297 | if (!error) |
1298 | error = error2; | |
1299 | } | |
4b8879df | 1300 | |
43ff2122 CH |
1301 | error2 = xfs_buf_delwri_submit(&buffer_list); |
1302 | if (!error) | |
1303 | error = error2; | |
1304 | ||
1da177e4 LT |
1305 | /* |
1306 | * We can get this error if we couldn't do a dquot allocation inside | |
1307 | * xfs_qm_dqusage_adjust (via bulkstat). We don't care about the | |
1308 | * dirty dquots that might be cached, we just want to get rid of them | |
1309 | * and turn quotaoff. The dquots won't be attached to any of the inodes | |
1310 | * at this point (because we intentionally didn't in dqget_noattach). | |
1311 | */ | |
1312 | if (error) { | |
8112e9dc | 1313 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
1da177e4 LT |
1314 | goto error_return; |
1315 | } | |
1da177e4 | 1316 | |
1da177e4 LT |
1317 | /* |
1318 | * If one type of quotas is off, then it will lose its | |
1319 | * quotachecked status, since we won't be doing accounting for | |
1320 | * that type anymore. | |
1321 | */ | |
4177af3a | 1322 | mp->m_qflags &= ~XFS_ALL_QUOTA_CHKD; |
1da177e4 LT |
1323 | mp->m_qflags |= flags; |
1324 | ||
1da177e4 | 1325 | error_return: |
43ff2122 CH |
1326 | while (!list_empty(&buffer_list)) { |
1327 | struct xfs_buf *bp = | |
1328 | list_first_entry(&buffer_list, struct xfs_buf, b_list); | |
1329 | list_del_init(&bp->b_list); | |
1330 | xfs_buf_relse(bp); | |
1331 | } | |
1332 | ||
1da177e4 | 1333 | if (error) { |
0b932ccc DC |
1334 | xfs_warn(mp, |
1335 | "Quotacheck: Unsuccessful (Error %d): Disabling quotas.", | |
1336 | error); | |
1da177e4 LT |
1337 | /* |
1338 | * We must turn off quotas. | |
1339 | */ | |
1340 | ASSERT(mp->m_quotainfo != NULL); | |
1da177e4 | 1341 | xfs_qm_destroy_quotainfo(mp); |
31d5577b | 1342 | if (xfs_mount_reset_sbqflags(mp)) { |
0b932ccc DC |
1343 | xfs_warn(mp, |
1344 | "Quotacheck: Failed to reset quota flags."); | |
31d5577b | 1345 | } |
0b932ccc DC |
1346 | } else |
1347 | xfs_notice(mp, "Quotacheck: Done."); | |
1da177e4 LT |
1348 | return (error); |
1349 | } | |
1350 | ||
1351 | /* | |
1352 | * This is called after the superblock has been read in and we're ready to | |
1353 | * iget the quota inodes. | |
1354 | */ | |
1355 | STATIC int | |
1356 | xfs_qm_init_quotainos( | |
1357 | xfs_mount_t *mp) | |
1358 | { | |
1359 | xfs_inode_t *uip, *gip; | |
1360 | int error; | |
1361 | __int64_t sbflags; | |
1362 | uint flags; | |
1363 | ||
1364 | ASSERT(mp->m_quotainfo); | |
1365 | uip = gip = NULL; | |
1366 | sbflags = 0; | |
1367 | flags = 0; | |
1368 | ||
1369 | /* | |
1370 | * Get the uquota and gquota inodes | |
1371 | */ | |
62118709 | 1372 | if (xfs_sb_version_hasquota(&mp->m_sb)) { |
1da177e4 LT |
1373 | if (XFS_IS_UQUOTA_ON(mp) && |
1374 | mp->m_sb.sb_uquotino != NULLFSINO) { | |
1375 | ASSERT(mp->m_sb.sb_uquotino > 0); | |
1376 | if ((error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, | |
7b6259e7 | 1377 | 0, 0, &uip))) |
1da177e4 LT |
1378 | return XFS_ERROR(error); |
1379 | } | |
c8ad20ff | 1380 | if (XFS_IS_OQUOTA_ON(mp) && |
1da177e4 LT |
1381 | mp->m_sb.sb_gquotino != NULLFSINO) { |
1382 | ASSERT(mp->m_sb.sb_gquotino > 0); | |
1383 | if ((error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, | |
7b6259e7 | 1384 | 0, 0, &gip))) { |
1da177e4 | 1385 | if (uip) |
43355099 | 1386 | IRELE(uip); |
1da177e4 LT |
1387 | return XFS_ERROR(error); |
1388 | } | |
1389 | } | |
1390 | } else { | |
1391 | flags |= XFS_QMOPT_SBVERSION; | |
1392 | sbflags |= (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | | |
1393 | XFS_SB_GQUOTINO | XFS_SB_QFLAGS); | |
1394 | } | |
1395 | ||
1396 | /* | |
1397 | * Create the two inodes, if they don't exist already. The changes | |
1398 | * made above will get added to a transaction and logged in one of | |
1399 | * the qino_alloc calls below. If the device is readonly, | |
1400 | * temporarily switch to read-write to do this. | |
1401 | */ | |
1402 | if (XFS_IS_UQUOTA_ON(mp) && uip == NULL) { | |
1403 | if ((error = xfs_qm_qino_alloc(mp, &uip, | |
1404 | sbflags | XFS_SB_UQUOTINO, | |
1405 | flags | XFS_QMOPT_UQUOTA))) | |
1406 | return XFS_ERROR(error); | |
1407 | ||
1408 | flags &= ~XFS_QMOPT_SBVERSION; | |
1409 | } | |
c8ad20ff NS |
1410 | if (XFS_IS_OQUOTA_ON(mp) && gip == NULL) { |
1411 | flags |= (XFS_IS_GQUOTA_ON(mp) ? | |
1412 | XFS_QMOPT_GQUOTA : XFS_QMOPT_PQUOTA); | |
1413 | error = xfs_qm_qino_alloc(mp, &gip, | |
1414 | sbflags | XFS_SB_GQUOTINO, flags); | |
1415 | if (error) { | |
1da177e4 | 1416 | if (uip) |
43355099 | 1417 | IRELE(uip); |
1da177e4 LT |
1418 | |
1419 | return XFS_ERROR(error); | |
1420 | } | |
1421 | } | |
1422 | ||
8a7b8a89 CH |
1423 | mp->m_quotainfo->qi_uquotaip = uip; |
1424 | mp->m_quotainfo->qi_gquotaip = gip; | |
1da177e4 | 1425 | |
014c2544 | 1426 | return 0; |
1da177e4 LT |
1427 | } |
1428 | ||
92b2e5b3 CH |
1429 | STATIC void |
1430 | xfs_qm_dqfree_one( | |
1431 | struct xfs_dquot *dqp) | |
1432 | { | |
1433 | struct xfs_mount *mp = dqp->q_mount; | |
1434 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
1da177e4 | 1435 | |
9f920f11 CH |
1436 | mutex_lock(&qi->qi_tree_lock); |
1437 | radix_tree_delete(XFS_DQUOT_TREE(qi, dqp->q_core.d_flags), | |
1438 | be32_to_cpu(dqp->q_core.d_id)); | |
368e1361 | 1439 | |
92b2e5b3 | 1440 | qi->qi_dquots--; |
b84a3a96 | 1441 | mutex_unlock(&qi->qi_tree_lock); |
92b2e5b3 CH |
1442 | |
1443 | xfs_qm_dqdestroy(dqp); | |
1444 | } | |
1445 | ||
1446 | STATIC void | |
1447 | xfs_qm_dqreclaim_one( | |
1448 | struct xfs_dquot *dqp, | |
43ff2122 | 1449 | struct list_head *buffer_list, |
92b2e5b3 | 1450 | struct list_head *dispose_list) |
1da177e4 | 1451 | { |
92b2e5b3 | 1452 | struct xfs_mount *mp = dqp->q_mount; |
f8739c3c | 1453 | struct xfs_quotainfo *qi = mp->m_quotainfo; |
92b2e5b3 | 1454 | int error; |
1da177e4 | 1455 | |
92b2e5b3 CH |
1456 | if (!xfs_dqlock_nowait(dqp)) |
1457 | goto out_busy; | |
bf72de31 | 1458 | |
92b2e5b3 CH |
1459 | /* |
1460 | * This dquot has acquired a reference in the meantime remove it from | |
1461 | * the freelist and try again. | |
1462 | */ | |
1463 | if (dqp->q_nrefs) { | |
1464 | xfs_dqunlock(dqp); | |
1da177e4 | 1465 | |
92b2e5b3 | 1466 | trace_xfs_dqreclaim_want(dqp); |
48776fd2 | 1467 | XFS_STATS_INC(xs_qm_dqwants); |
1da177e4 | 1468 | |
f8739c3c CH |
1469 | list_del_init(&dqp->q_lru); |
1470 | qi->qi_lru_count--; | |
48776fd2 | 1471 | XFS_STATS_DEC(xs_qm_dquot_unused); |
92b2e5b3 CH |
1472 | return; |
1473 | } | |
368e1361 | 1474 | |
92b2e5b3 CH |
1475 | /* |
1476 | * Try to grab the flush lock. If this dquot is in the process of | |
1477 | * getting flushed to disk, we don't want to reclaim it. | |
1478 | */ | |
1479 | if (!xfs_dqflock_nowait(dqp)) | |
1480 | goto out_busy; | |
0b1b213f | 1481 | |
92b2e5b3 | 1482 | if (XFS_DQ_IS_DIRTY(dqp)) { |
fe7257fd CH |
1483 | struct xfs_buf *bp = NULL; |
1484 | ||
92b2e5b3 | 1485 | trace_xfs_dqreclaim_dirty(dqp); |
0b1b213f | 1486 | |
fe7257fd | 1487 | error = xfs_qm_dqflush(dqp, &bp); |
92b2e5b3 CH |
1488 | if (error) { |
1489 | xfs_warn(mp, "%s: dquot %p flush failed", | |
1490 | __func__, dqp); | |
fe7257fd | 1491 | goto out_busy; |
1da177e4 | 1492 | } |
368e1361 | 1493 | |
43ff2122 | 1494 | xfs_buf_delwri_queue(bp, buffer_list); |
fe7257fd | 1495 | xfs_buf_relse(bp); |
1da177e4 | 1496 | /* |
92b2e5b3 CH |
1497 | * Give the dquot another try on the freelist, as the |
1498 | * flushing will take some time. | |
1da177e4 | 1499 | */ |
92b2e5b3 CH |
1500 | goto out_busy; |
1501 | } | |
1502 | xfs_dqfunlock(dqp); | |
92678554 | 1503 | |
92b2e5b3 CH |
1504 | /* |
1505 | * Prevent lookups now that we are past the point of no return. | |
1506 | */ | |
1507 | dqp->dq_flags |= XFS_DQ_FREEING; | |
1508 | xfs_dqunlock(dqp); | |
92678554 | 1509 | |
92b2e5b3 | 1510 | ASSERT(dqp->q_nrefs == 0); |
f8739c3c CH |
1511 | list_move_tail(&dqp->q_lru, dispose_list); |
1512 | qi->qi_lru_count--; | |
48776fd2 | 1513 | XFS_STATS_DEC(xs_qm_dquot_unused); |
92678554 | 1514 | |
92b2e5b3 | 1515 | trace_xfs_dqreclaim_done(dqp); |
48776fd2 | 1516 | XFS_STATS_INC(xs_qm_dqreclaims); |
92b2e5b3 | 1517 | return; |
1da177e4 | 1518 | |
92b2e5b3 CH |
1519 | out_busy: |
1520 | xfs_dqunlock(dqp); | |
368e1361 | 1521 | |
92b2e5b3 CH |
1522 | /* |
1523 | * Move the dquot to the tail of the list so that we don't spin on it. | |
1524 | */ | |
f8739c3c | 1525 | list_move_tail(&dqp->q_lru, &qi->qi_lru_list); |
368e1361 | 1526 | |
92b2e5b3 | 1527 | trace_xfs_dqreclaim_busy(dqp); |
48776fd2 | 1528 | XFS_STATS_INC(xs_qm_dqreclaim_misses); |
368e1361 | 1529 | } |
1da177e4 | 1530 | |
1da177e4 | 1531 | STATIC int |
7f8275d0 | 1532 | xfs_qm_shake( |
92b2e5b3 CH |
1533 | struct shrinker *shrink, |
1534 | struct shrink_control *sc) | |
1da177e4 | 1535 | { |
f8739c3c CH |
1536 | struct xfs_quotainfo *qi = |
1537 | container_of(shrink, struct xfs_quotainfo, qi_shrinker); | |
92b2e5b3 | 1538 | int nr_to_scan = sc->nr_to_scan; |
43ff2122 | 1539 | LIST_HEAD (buffer_list); |
92b2e5b3 CH |
1540 | LIST_HEAD (dispose_list); |
1541 | struct xfs_dquot *dqp; | |
43ff2122 | 1542 | int error; |
1da177e4 | 1543 | |
92b2e5b3 | 1544 | if ((sc->gfp_mask & (__GFP_FS|__GFP_WAIT)) != (__GFP_FS|__GFP_WAIT)) |
014c2544 | 1545 | return 0; |
92b2e5b3 CH |
1546 | if (!nr_to_scan) |
1547 | goto out; | |
1da177e4 | 1548 | |
f8739c3c CH |
1549 | mutex_lock(&qi->qi_lru_lock); |
1550 | while (!list_empty(&qi->qi_lru_list)) { | |
92b2e5b3 CH |
1551 | if (nr_to_scan-- <= 0) |
1552 | break; | |
f8739c3c CH |
1553 | dqp = list_first_entry(&qi->qi_lru_list, struct xfs_dquot, |
1554 | q_lru); | |
43ff2122 | 1555 | xfs_qm_dqreclaim_one(dqp, &buffer_list, &dispose_list); |
1da177e4 | 1556 | } |
f8739c3c | 1557 | mutex_unlock(&qi->qi_lru_lock); |
1da177e4 | 1558 | |
43ff2122 CH |
1559 | error = xfs_buf_delwri_submit(&buffer_list); |
1560 | if (error) | |
1561 | xfs_warn(NULL, "%s: dquot reclaim failed", __func__); | |
1562 | ||
92b2e5b3 | 1563 | while (!list_empty(&dispose_list)) { |
f8739c3c CH |
1564 | dqp = list_first_entry(&dispose_list, struct xfs_dquot, q_lru); |
1565 | list_del_init(&dqp->q_lru); | |
92b2e5b3 CH |
1566 | xfs_qm_dqfree_one(dqp); |
1567 | } | |
43ff2122 | 1568 | |
92b2e5b3 | 1569 | out: |
f8739c3c | 1570 | return (qi->qi_lru_count / 100) * sysctl_vfs_cache_pressure; |
1da177e4 LT |
1571 | } |
1572 | ||
1da177e4 LT |
1573 | /* |
1574 | * Start a transaction and write the incore superblock changes to | |
1575 | * disk. flags parameter indicates which fields have changed. | |
1576 | */ | |
1577 | int | |
1578 | xfs_qm_write_sb_changes( | |
1579 | xfs_mount_t *mp, | |
1580 | __int64_t flags) | |
1581 | { | |
1582 | xfs_trans_t *tp; | |
1583 | int error; | |
1584 | ||
1da177e4 LT |
1585 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE); |
1586 | if ((error = xfs_trans_reserve(tp, 0, | |
1587 | mp->m_sb.sb_sectsize + 128, 0, | |
1588 | 0, | |
1589 | XFS_DEFAULT_LOG_COUNT))) { | |
1590 | xfs_trans_cancel(tp, 0); | |
014c2544 | 1591 | return error; |
1da177e4 LT |
1592 | } |
1593 | ||
1594 | xfs_mod_sb(tp, flags); | |
e5720eec | 1595 | error = xfs_trans_commit(tp, 0); |
1da177e4 | 1596 | |
e5720eec | 1597 | return error; |
1da177e4 LT |
1598 | } |
1599 | ||
1600 | ||
1601 | /* --------------- utility functions for vnodeops ---------------- */ | |
1602 | ||
1603 | ||
1604 | /* | |
6c77b0ea | 1605 | * Given an inode, a uid, gid and prid make sure that we have |
1da177e4 LT |
1606 | * allocated relevant dquot(s) on disk, and that we won't exceed inode |
1607 | * quotas by creating this file. | |
1608 | * This also attaches dquot(s) to the given inode after locking it, | |
1609 | * and returns the dquots corresponding to the uid and/or gid. | |
1610 | * | |
1611 | * in : inode (unlocked) | |
1612 | * out : udquot, gdquot with references taken and unlocked | |
1613 | */ | |
1614 | int | |
1615 | xfs_qm_vop_dqalloc( | |
7d095257 CH |
1616 | struct xfs_inode *ip, |
1617 | uid_t uid, | |
1618 | gid_t gid, | |
1619 | prid_t prid, | |
1620 | uint flags, | |
1621 | struct xfs_dquot **O_udqpp, | |
1622 | struct xfs_dquot **O_gdqpp) | |
1da177e4 | 1623 | { |
7d095257 CH |
1624 | struct xfs_mount *mp = ip->i_mount; |
1625 | struct xfs_dquot *uq, *gq; | |
1626 | int error; | |
1627 | uint lockflags; | |
1da177e4 | 1628 | |
7d095257 | 1629 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
1da177e4 LT |
1630 | return 0; |
1631 | ||
1632 | lockflags = XFS_ILOCK_EXCL; | |
1633 | xfs_ilock(ip, lockflags); | |
1634 | ||
bd186aa9 | 1635 | if ((flags & XFS_QMOPT_INHERIT) && XFS_INHERIT_GID(ip)) |
1da177e4 LT |
1636 | gid = ip->i_d.di_gid; |
1637 | ||
1638 | /* | |
1639 | * Attach the dquot(s) to this inode, doing a dquot allocation | |
1640 | * if necessary. The dquot(s) will not be locked. | |
1641 | */ | |
1642 | if (XFS_NOT_DQATTACHED(mp, ip)) { | |
7d095257 CH |
1643 | error = xfs_qm_dqattach_locked(ip, XFS_QMOPT_DQALLOC); |
1644 | if (error) { | |
1da177e4 | 1645 | xfs_iunlock(ip, lockflags); |
014c2544 | 1646 | return error; |
1da177e4 LT |
1647 | } |
1648 | } | |
1649 | ||
1650 | uq = gq = NULL; | |
c8ad20ff | 1651 | if ((flags & XFS_QMOPT_UQUOTA) && XFS_IS_UQUOTA_ON(mp)) { |
1da177e4 LT |
1652 | if (ip->i_d.di_uid != uid) { |
1653 | /* | |
1654 | * What we need is the dquot that has this uid, and | |
1655 | * if we send the inode to dqget, the uid of the inode | |
1656 | * takes priority over what's sent in the uid argument. | |
1657 | * We must unlock inode here before calling dqget if | |
1658 | * we're not sending the inode, because otherwise | |
1659 | * we'll deadlock by doing trans_reserve while | |
1660 | * holding ilock. | |
1661 | */ | |
1662 | xfs_iunlock(ip, lockflags); | |
1663 | if ((error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t) uid, | |
1664 | XFS_DQ_USER, | |
1665 | XFS_QMOPT_DQALLOC | | |
1666 | XFS_QMOPT_DOWARN, | |
1667 | &uq))) { | |
1668 | ASSERT(error != ENOENT); | |
014c2544 | 1669 | return error; |
1da177e4 LT |
1670 | } |
1671 | /* | |
1672 | * Get the ilock in the right order. | |
1673 | */ | |
1674 | xfs_dqunlock(uq); | |
1675 | lockflags = XFS_ILOCK_SHARED; | |
1676 | xfs_ilock(ip, lockflags); | |
1677 | } else { | |
1678 | /* | |
1679 | * Take an extra reference, because we'll return | |
1680 | * this to caller | |
1681 | */ | |
1682 | ASSERT(ip->i_udquot); | |
78e55892 | 1683 | uq = xfs_qm_dqhold(ip->i_udquot); |
1da177e4 LT |
1684 | } |
1685 | } | |
c8ad20ff | 1686 | if ((flags & XFS_QMOPT_GQUOTA) && XFS_IS_GQUOTA_ON(mp)) { |
1da177e4 LT |
1687 | if (ip->i_d.di_gid != gid) { |
1688 | xfs_iunlock(ip, lockflags); | |
1689 | if ((error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t)gid, | |
1690 | XFS_DQ_GROUP, | |
1691 | XFS_QMOPT_DQALLOC | | |
1692 | XFS_QMOPT_DOWARN, | |
1693 | &gq))) { | |
1694 | if (uq) | |
1695 | xfs_qm_dqrele(uq); | |
1696 | ASSERT(error != ENOENT); | |
014c2544 | 1697 | return error; |
1da177e4 LT |
1698 | } |
1699 | xfs_dqunlock(gq); | |
1700 | lockflags = XFS_ILOCK_SHARED; | |
1701 | xfs_ilock(ip, lockflags); | |
1702 | } else { | |
1703 | ASSERT(ip->i_gdquot); | |
78e55892 | 1704 | gq = xfs_qm_dqhold(ip->i_gdquot); |
1da177e4 | 1705 | } |
c8ad20ff | 1706 | } else if ((flags & XFS_QMOPT_PQUOTA) && XFS_IS_PQUOTA_ON(mp)) { |
6743099c | 1707 | if (xfs_get_projid(ip) != prid) { |
c8ad20ff NS |
1708 | xfs_iunlock(ip, lockflags); |
1709 | if ((error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t)prid, | |
1710 | XFS_DQ_PROJ, | |
1711 | XFS_QMOPT_DQALLOC | | |
1712 | XFS_QMOPT_DOWARN, | |
1713 | &gq))) { | |
1714 | if (uq) | |
1715 | xfs_qm_dqrele(uq); | |
1716 | ASSERT(error != ENOENT); | |
1717 | return (error); | |
1718 | } | |
1719 | xfs_dqunlock(gq); | |
1720 | lockflags = XFS_ILOCK_SHARED; | |
1721 | xfs_ilock(ip, lockflags); | |
1722 | } else { | |
1723 | ASSERT(ip->i_gdquot); | |
78e55892 | 1724 | gq = xfs_qm_dqhold(ip->i_gdquot); |
c8ad20ff | 1725 | } |
1da177e4 LT |
1726 | } |
1727 | if (uq) | |
0b1b213f | 1728 | trace_xfs_dquot_dqalloc(ip); |
1da177e4 LT |
1729 | |
1730 | xfs_iunlock(ip, lockflags); | |
1731 | if (O_udqpp) | |
1732 | *O_udqpp = uq; | |
1733 | else if (uq) | |
1734 | xfs_qm_dqrele(uq); | |
1735 | if (O_gdqpp) | |
1736 | *O_gdqpp = gq; | |
1737 | else if (gq) | |
1738 | xfs_qm_dqrele(gq); | |
014c2544 | 1739 | return 0; |
1da177e4 LT |
1740 | } |
1741 | ||
1742 | /* | |
1743 | * Actually transfer ownership, and do dquot modifications. | |
1744 | * These were already reserved. | |
1745 | */ | |
1746 | xfs_dquot_t * | |
1747 | xfs_qm_vop_chown( | |
1748 | xfs_trans_t *tp, | |
1749 | xfs_inode_t *ip, | |
1750 | xfs_dquot_t **IO_olddq, | |
1751 | xfs_dquot_t *newdq) | |
1752 | { | |
1753 | xfs_dquot_t *prevdq; | |
06d10dd9 NS |
1754 | uint bfield = XFS_IS_REALTIME_INODE(ip) ? |
1755 | XFS_TRANS_DQ_RTBCOUNT : XFS_TRANS_DQ_BCOUNT; | |
1756 | ||
7d095257 | 1757 | |
579aa9ca | 1758 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
1759 | ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount)); |
1760 | ||
1761 | /* old dquot */ | |
1762 | prevdq = *IO_olddq; | |
1763 | ASSERT(prevdq); | |
1764 | ASSERT(prevdq != newdq); | |
1765 | ||
06d10dd9 NS |
1766 | xfs_trans_mod_dquot(tp, prevdq, bfield, -(ip->i_d.di_nblocks)); |
1767 | xfs_trans_mod_dquot(tp, prevdq, XFS_TRANS_DQ_ICOUNT, -1); | |
1da177e4 LT |
1768 | |
1769 | /* the sparkling new dquot */ | |
06d10dd9 NS |
1770 | xfs_trans_mod_dquot(tp, newdq, bfield, ip->i_d.di_nblocks); |
1771 | xfs_trans_mod_dquot(tp, newdq, XFS_TRANS_DQ_ICOUNT, 1); | |
1da177e4 LT |
1772 | |
1773 | /* | |
78e55892 CH |
1774 | * Take an extra reference, because the inode is going to keep |
1775 | * this dquot pointer even after the trans_commit. | |
1da177e4 | 1776 | */ |
78e55892 | 1777 | *IO_olddq = xfs_qm_dqhold(newdq); |
1da177e4 | 1778 | |
014c2544 | 1779 | return prevdq; |
1da177e4 LT |
1780 | } |
1781 | ||
1782 | /* | |
c8ad20ff | 1783 | * Quota reservations for setattr(AT_UID|AT_GID|AT_PROJID). |
1da177e4 LT |
1784 | */ |
1785 | int | |
1786 | xfs_qm_vop_chown_reserve( | |
1787 | xfs_trans_t *tp, | |
1788 | xfs_inode_t *ip, | |
1789 | xfs_dquot_t *udqp, | |
1790 | xfs_dquot_t *gdqp, | |
1791 | uint flags) | |
1792 | { | |
7d095257 | 1793 | xfs_mount_t *mp = ip->i_mount; |
9a2a7de2 | 1794 | uint delblks, blkflags, prjflags = 0; |
1da177e4 | 1795 | xfs_dquot_t *unresudq, *unresgdq, *delblksudq, *delblksgdq; |
7d095257 CH |
1796 | int error; |
1797 | ||
1da177e4 | 1798 | |
579aa9ca | 1799 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED)); |
1da177e4 LT |
1800 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1801 | ||
1802 | delblks = ip->i_delayed_blks; | |
1803 | delblksudq = delblksgdq = unresudq = unresgdq = NULL; | |
06d10dd9 NS |
1804 | blkflags = XFS_IS_REALTIME_INODE(ip) ? |
1805 | XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS; | |
1da177e4 LT |
1806 | |
1807 | if (XFS_IS_UQUOTA_ON(mp) && udqp && | |
1149d96a | 1808 | ip->i_d.di_uid != (uid_t)be32_to_cpu(udqp->q_core.d_id)) { |
1da177e4 LT |
1809 | delblksudq = udqp; |
1810 | /* | |
1811 | * If there are delayed allocation blocks, then we have to | |
1812 | * unreserve those from the old dquot, and add them to the | |
1813 | * new dquot. | |
1814 | */ | |
1815 | if (delblks) { | |
1816 | ASSERT(ip->i_udquot); | |
1817 | unresudq = ip->i_udquot; | |
1818 | } | |
1819 | } | |
c8ad20ff | 1820 | if (XFS_IS_OQUOTA_ON(ip->i_mount) && gdqp) { |
9a2a7de2 | 1821 | if (XFS_IS_PQUOTA_ON(ip->i_mount) && |
6743099c | 1822 | xfs_get_projid(ip) != be32_to_cpu(gdqp->q_core.d_id)) |
9a2a7de2 NS |
1823 | prjflags = XFS_QMOPT_ENOSPC; |
1824 | ||
1825 | if (prjflags || | |
1826 | (XFS_IS_GQUOTA_ON(ip->i_mount) && | |
1827 | ip->i_d.di_gid != be32_to_cpu(gdqp->q_core.d_id))) { | |
c8ad20ff NS |
1828 | delblksgdq = gdqp; |
1829 | if (delblks) { | |
1830 | ASSERT(ip->i_gdquot); | |
1831 | unresgdq = ip->i_gdquot; | |
1832 | } | |
1da177e4 LT |
1833 | } |
1834 | } | |
1835 | ||
1836 | if ((error = xfs_trans_reserve_quota_bydquots(tp, ip->i_mount, | |
1837 | delblksudq, delblksgdq, ip->i_d.di_nblocks, 1, | |
9a2a7de2 | 1838 | flags | blkflags | prjflags))) |
1da177e4 LT |
1839 | return (error); |
1840 | ||
1841 | /* | |
1842 | * Do the delayed blks reservations/unreservations now. Since, these | |
1843 | * are done without the help of a transaction, if a reservation fails | |
1844 | * its previous reservations won't be automatically undone by trans | |
1845 | * code. So, we have to do it manually here. | |
1846 | */ | |
1847 | if (delblks) { | |
1848 | /* | |
1849 | * Do the reservations first. Unreservation can't fail. | |
1850 | */ | |
1851 | ASSERT(delblksudq || delblksgdq); | |
1852 | ASSERT(unresudq || unresgdq); | |
1853 | if ((error = xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, | |
1854 | delblksudq, delblksgdq, (xfs_qcnt_t)delblks, 0, | |
9a2a7de2 | 1855 | flags | blkflags | prjflags))) |
1da177e4 LT |
1856 | return (error); |
1857 | xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, | |
1858 | unresudq, unresgdq, -((xfs_qcnt_t)delblks), 0, | |
06d10dd9 | 1859 | blkflags); |
1da177e4 LT |
1860 | } |
1861 | ||
1862 | return (0); | |
1863 | } | |
1864 | ||
1865 | int | |
1866 | xfs_qm_vop_rename_dqattach( | |
7d095257 | 1867 | struct xfs_inode **i_tab) |
1da177e4 | 1868 | { |
7d095257 CH |
1869 | struct xfs_mount *mp = i_tab[0]->i_mount; |
1870 | int i; | |
1da177e4 | 1871 | |
7d095257 | 1872 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
014c2544 | 1873 | return 0; |
1da177e4 | 1874 | |
7d095257 CH |
1875 | for (i = 0; (i < 4 && i_tab[i]); i++) { |
1876 | struct xfs_inode *ip = i_tab[i]; | |
1877 | int error; | |
1878 | ||
1da177e4 LT |
1879 | /* |
1880 | * Watch out for duplicate entries in the table. | |
1881 | */ | |
7d095257 CH |
1882 | if (i == 0 || ip != i_tab[i-1]) { |
1883 | if (XFS_NOT_DQATTACHED(mp, ip)) { | |
1da177e4 LT |
1884 | error = xfs_qm_dqattach(ip, 0); |
1885 | if (error) | |
014c2544 | 1886 | return error; |
1da177e4 LT |
1887 | } |
1888 | } | |
1889 | } | |
014c2544 | 1890 | return 0; |
1da177e4 LT |
1891 | } |
1892 | ||
1893 | void | |
7d095257 CH |
1894 | xfs_qm_vop_create_dqattach( |
1895 | struct xfs_trans *tp, | |
1896 | struct xfs_inode *ip, | |
1897 | struct xfs_dquot *udqp, | |
1898 | struct xfs_dquot *gdqp) | |
1da177e4 | 1899 | { |
7d095257 CH |
1900 | struct xfs_mount *mp = tp->t_mountp; |
1901 | ||
1902 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) | |
1da177e4 LT |
1903 | return; |
1904 | ||
579aa9ca | 1905 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
7d095257 | 1906 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1da177e4 LT |
1907 | |
1908 | if (udqp) { | |
1da177e4 | 1909 | ASSERT(ip->i_udquot == NULL); |
7d095257 | 1910 | ASSERT(XFS_IS_UQUOTA_ON(mp)); |
1149d96a | 1911 | ASSERT(ip->i_d.di_uid == be32_to_cpu(udqp->q_core.d_id)); |
78e55892 CH |
1912 | |
1913 | ip->i_udquot = xfs_qm_dqhold(udqp); | |
1da177e4 LT |
1914 | xfs_trans_mod_dquot(tp, udqp, XFS_TRANS_DQ_ICOUNT, 1); |
1915 | } | |
1916 | if (gdqp) { | |
1da177e4 | 1917 | ASSERT(ip->i_gdquot == NULL); |
7d095257 CH |
1918 | ASSERT(XFS_IS_OQUOTA_ON(mp)); |
1919 | ASSERT((XFS_IS_GQUOTA_ON(mp) ? | |
6743099c | 1920 | ip->i_d.di_gid : xfs_get_projid(ip)) == |
ee2a4f7c | 1921 | be32_to_cpu(gdqp->q_core.d_id)); |
78e55892 CH |
1922 | |
1923 | ip->i_gdquot = xfs_qm_dqhold(gdqp); | |
1da177e4 LT |
1924 | xfs_trans_mod_dquot(tp, gdqp, XFS_TRANS_DQ_ICOUNT, 1); |
1925 | } | |
1926 | } | |
1927 |