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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" | |
a844f451 | 20 | #include "xfs_bit.h" |
1da177e4 | 21 | #include "xfs_log.h" |
a844f451 | 22 | #include "xfs_inum.h" |
1da177e4 LT |
23 | #include "xfs_trans.h" |
24 | #include "xfs_sb.h" | |
25 | #include "xfs_ag.h" | |
1da177e4 | 26 | #include "xfs_alloc.h" |
1da177e4 LT |
27 | #include "xfs_quota.h" |
28 | #include "xfs_mount.h" | |
1da177e4 LT |
29 | #include "xfs_bmap_btree.h" |
30 | #include "xfs_ialloc_btree.h" | |
1da177e4 LT |
31 | #include "xfs_dinode.h" |
32 | #include "xfs_inode.h" | |
a844f451 NS |
33 | #include "xfs_ialloc.h" |
34 | #include "xfs_itable.h" | |
1da177e4 LT |
35 | #include "xfs_rtalloc.h" |
36 | #include "xfs_error.h" | |
a844f451 | 37 | #include "xfs_bmap.h" |
1da177e4 LT |
38 | #include "xfs_attr.h" |
39 | #include "xfs_buf_item.h" | |
40 | #include "xfs_trans_space.h" | |
41 | #include "xfs_utils.h" | |
1da177e4 | 42 | #include "xfs_qm.h" |
0b1b213f | 43 | #include "xfs_trace.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, | |
68 | int (*execute)(struct xfs_dquot *dqp)) | |
69 | { | |
70 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
71 | struct radix_tree_root *tree = XFS_DQUOT_TREE(qi, type); | |
72 | uint32_t next_index; | |
73 | int last_error = 0; | |
74 | int skipped; | |
75 | int nr_found; | |
76 | ||
77 | restart: | |
78 | skipped = 0; | |
79 | next_index = 0; | |
80 | nr_found = 0; | |
81 | ||
82 | while (1) { | |
83 | struct xfs_dquot *batch[XFS_DQ_LOOKUP_BATCH]; | |
84 | int error = 0; | |
85 | int i; | |
86 | ||
87 | mutex_lock(&qi->qi_tree_lock); | |
88 | nr_found = radix_tree_gang_lookup(tree, (void **)batch, | |
89 | next_index, XFS_DQ_LOOKUP_BATCH); | |
90 | if (!nr_found) { | |
91 | mutex_unlock(&qi->qi_tree_lock); | |
92 | break; | |
93 | } | |
94 | ||
95 | for (i = 0; i < nr_found; i++) { | |
96 | struct xfs_dquot *dqp = batch[i]; | |
97 | ||
98 | next_index = be32_to_cpu(dqp->q_core.d_id) + 1; | |
99 | ||
100 | error = execute(batch[i]); | |
101 | if (error == EAGAIN) { | |
102 | skipped++; | |
103 | continue; | |
104 | } | |
105 | if (error && last_error != EFSCORRUPTED) | |
106 | last_error = error; | |
107 | } | |
108 | ||
109 | mutex_unlock(&qi->qi_tree_lock); | |
110 | ||
111 | /* bail out if the filesystem is corrupted. */ | |
112 | if (last_error == EFSCORRUPTED) { | |
113 | skipped = 0; | |
114 | break; | |
115 | } | |
116 | } | |
117 | ||
118 | if (skipped) { | |
119 | delay(1); | |
120 | goto restart; | |
121 | } | |
122 | ||
123 | return last_error; | |
124 | } | |
125 | ||
126 | ||
127 | /* | |
128 | * Purge a dquot from all tracking data structures and free it. | |
129 | */ | |
130 | STATIC int | |
131 | xfs_qm_dqpurge( | |
132 | struct xfs_dquot *dqp) | |
133 | { | |
134 | struct xfs_mount *mp = dqp->q_mount; | |
135 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
136 | struct xfs_dquot *gdqp = NULL; | |
137 | ||
138 | xfs_dqlock(dqp); | |
139 | if ((dqp->dq_flags & XFS_DQ_FREEING) || dqp->q_nrefs != 0) { | |
140 | xfs_dqunlock(dqp); | |
141 | return EAGAIN; | |
142 | } | |
143 | ||
144 | /* | |
145 | * If this quota has a group hint attached, prepare for releasing it | |
146 | * now. | |
147 | */ | |
148 | gdqp = dqp->q_gdquot; | |
149 | if (gdqp) { | |
150 | xfs_dqlock(gdqp); | |
151 | dqp->q_gdquot = NULL; | |
152 | } | |
153 | ||
154 | dqp->dq_flags |= XFS_DQ_FREEING; | |
155 | ||
156 | /* | |
157 | * If we're turning off quotas, we have to make sure that, for | |
158 | * example, we don't delete quota disk blocks while dquots are | |
159 | * in the process of getting written to those disk blocks. | |
160 | * This dquot might well be on AIL, and we can't leave it there | |
161 | * if we're turning off quotas. Basically, we need this flush | |
162 | * lock, and are willing to block on it. | |
163 | */ | |
164 | if (!xfs_dqflock_nowait(dqp)) { | |
165 | /* | |
166 | * Block on the flush lock after nudging dquot buffer, | |
167 | * if it is incore. | |
168 | */ | |
169 | xfs_dqflock_pushbuf_wait(dqp); | |
170 | } | |
171 | ||
172 | /* | |
173 | * If we are turning this type of quotas off, we don't care | |
174 | * about the dirty metadata sitting in this dquot. OTOH, if | |
175 | * we're unmounting, we do care, so we flush it and wait. | |
176 | */ | |
177 | if (XFS_DQ_IS_DIRTY(dqp)) { | |
fe7257fd CH |
178 | struct xfs_buf *bp = NULL; |
179 | int error; | |
b84a3a96 CH |
180 | |
181 | /* | |
182 | * We don't care about getting disk errors here. We need | |
183 | * to purge this dquot anyway, so we go ahead regardless. | |
184 | */ | |
fe7257fd CH |
185 | error = xfs_qm_dqflush(dqp, &bp); |
186 | if (error) { | |
b84a3a96 CH |
187 | xfs_warn(mp, "%s: dquot %p flush failed", |
188 | __func__, dqp); | |
fe7257fd CH |
189 | } else { |
190 | error = xfs_bwrite(bp); | |
191 | xfs_buf_relse(bp); | |
192 | } | |
b84a3a96 CH |
193 | xfs_dqflock(dqp); |
194 | } | |
195 | ||
196 | ASSERT(atomic_read(&dqp->q_pincount) == 0); | |
197 | ASSERT(XFS_FORCED_SHUTDOWN(mp) || | |
198 | !(dqp->q_logitem.qli_item.li_flags & XFS_LI_IN_AIL)); | |
199 | ||
200 | xfs_dqfunlock(dqp); | |
201 | xfs_dqunlock(dqp); | |
202 | ||
203 | radix_tree_delete(XFS_DQUOT_TREE(qi, dqp->q_core.d_flags), | |
204 | be32_to_cpu(dqp->q_core.d_id)); | |
205 | qi->qi_dquots--; | |
206 | ||
207 | /* | |
208 | * We move dquots to the freelist as soon as their reference count | |
209 | * hits zero, so it really should be on the freelist here. | |
210 | */ | |
211 | mutex_lock(&qi->qi_lru_lock); | |
212 | ASSERT(!list_empty(&dqp->q_lru)); | |
213 | list_del_init(&dqp->q_lru); | |
214 | qi->qi_lru_count--; | |
215 | XFS_STATS_DEC(xs_qm_dquot_unused); | |
216 | mutex_unlock(&qi->qi_lru_lock); | |
217 | ||
218 | xfs_qm_dqdestroy(dqp); | |
219 | ||
220 | if (gdqp) | |
221 | xfs_qm_dqput(gdqp); | |
222 | return 0; | |
223 | } | |
224 | ||
225 | /* | |
226 | * Purge the dquot cache. | |
227 | */ | |
228 | void | |
229 | xfs_qm_dqpurge_all( | |
230 | struct xfs_mount *mp, | |
231 | uint flags) | |
232 | { | |
233 | if (flags & XFS_QMOPT_UQUOTA) | |
234 | xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_dqpurge); | |
235 | if (flags & XFS_QMOPT_GQUOTA) | |
236 | xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_dqpurge); | |
237 | if (flags & XFS_QMOPT_PQUOTA) | |
238 | xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_dqpurge); | |
239 | } | |
240 | ||
1da177e4 LT |
241 | /* |
242 | * Just destroy the quotainfo structure. | |
243 | */ | |
244 | void | |
7d095257 CH |
245 | xfs_qm_unmount( |
246 | struct xfs_mount *mp) | |
1da177e4 | 247 | { |
7d095257 | 248 | if (mp->m_quotainfo) { |
8112e9dc | 249 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
1da177e4 | 250 | xfs_qm_destroy_quotainfo(mp); |
7d095257 | 251 | } |
1da177e4 LT |
252 | } |
253 | ||
254 | ||
255 | /* | |
256 | * This is called from xfs_mountfs to start quotas and initialize all | |
257 | * necessary data structures like quotainfo. This is also responsible for | |
258 | * running a quotacheck as necessary. We are guaranteed that the superblock | |
259 | * is consistently read in at this point. | |
53aa7915 DC |
260 | * |
261 | * If we fail here, the mount will continue with quota turned off. We don't | |
262 | * need to inidicate success or failure at all. | |
1da177e4 | 263 | */ |
53aa7915 | 264 | void |
1da177e4 | 265 | xfs_qm_mount_quotas( |
4249023a | 266 | xfs_mount_t *mp) |
1da177e4 | 267 | { |
1da177e4 LT |
268 | int error = 0; |
269 | uint sbf; | |
270 | ||
1da177e4 LT |
271 | /* |
272 | * If quotas on realtime volumes is not supported, we disable | |
273 | * quotas immediately. | |
274 | */ | |
275 | if (mp->m_sb.sb_rextents) { | |
0b932ccc | 276 | xfs_notice(mp, "Cannot turn on quotas for realtime filesystem"); |
1da177e4 LT |
277 | mp->m_qflags = 0; |
278 | goto write_changes; | |
279 | } | |
280 | ||
1da177e4 | 281 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
155ffd07 | 282 | |
1da177e4 LT |
283 | /* |
284 | * Allocate the quotainfo structure inside the mount struct, and | |
285 | * create quotainode(s), and change/rev superblock if necessary. | |
286 | */ | |
53aa7915 DC |
287 | error = xfs_qm_init_quotainfo(mp); |
288 | if (error) { | |
1da177e4 LT |
289 | /* |
290 | * We must turn off quotas. | |
291 | */ | |
292 | ASSERT(mp->m_quotainfo == NULL); | |
293 | mp->m_qflags = 0; | |
294 | goto write_changes; | |
295 | } | |
296 | /* | |
297 | * If any of the quotas are not consistent, do a quotacheck. | |
298 | */ | |
4249023a | 299 | if (XFS_QM_NEED_QUOTACHECK(mp)) { |
53aa7915 DC |
300 | error = xfs_qm_quotacheck(mp); |
301 | if (error) { | |
302 | /* Quotacheck failed and disabled quotas. */ | |
303 | return; | |
1da177e4 | 304 | } |
1da177e4 | 305 | } |
646d5bda DD |
306 | /* |
307 | * If one type of quotas is off, then it will lose its | |
308 | * quotachecked status, since we won't be doing accounting for | |
309 | * that type anymore. | |
310 | */ | |
53aa7915 | 311 | if (!XFS_IS_UQUOTA_ON(mp)) |
646d5bda | 312 | mp->m_qflags &= ~XFS_UQUOTA_CHKD; |
53aa7915 | 313 | if (!(XFS_IS_GQUOTA_ON(mp) || XFS_IS_PQUOTA_ON(mp))) |
646d5bda | 314 | mp->m_qflags &= ~XFS_OQUOTA_CHKD; |
155ffd07 | 315 | |
1da177e4 LT |
316 | write_changes: |
317 | /* | |
3685c2a1 | 318 | * We actually don't have to acquire the m_sb_lock at all. |
1da177e4 LT |
319 | * This can only be called from mount, and that's single threaded. XXX |
320 | */ | |
3685c2a1 | 321 | spin_lock(&mp->m_sb_lock); |
1da177e4 LT |
322 | sbf = mp->m_sb.sb_qflags; |
323 | mp->m_sb.sb_qflags = mp->m_qflags & XFS_MOUNT_QUOTA_ALL; | |
3685c2a1 | 324 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
325 | |
326 | if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) { | |
327 | if (xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS)) { | |
328 | /* | |
329 | * We could only have been turning quotas off. | |
330 | * We aren't in very good shape actually because | |
331 | * the incore structures are convinced that quotas are | |
332 | * off, but the on disk superblock doesn't know that ! | |
333 | */ | |
334 | ASSERT(!(XFS_IS_QUOTA_RUNNING(mp))); | |
53487786 DC |
335 | xfs_alert(mp, "%s: Superblock update failed!", |
336 | __func__); | |
1da177e4 LT |
337 | } |
338 | } | |
339 | ||
340 | if (error) { | |
53487786 | 341 | xfs_warn(mp, "Failed to initialize disk quotas."); |
7d095257 | 342 | return; |
1da177e4 | 343 | } |
1da177e4 LT |
344 | } |
345 | ||
346 | /* | |
347 | * Called from the vfsops layer. | |
348 | */ | |
e57481dc | 349 | void |
1da177e4 LT |
350 | xfs_qm_unmount_quotas( |
351 | xfs_mount_t *mp) | |
352 | { | |
1da177e4 LT |
353 | /* |
354 | * Release the dquots that root inode, et al might be holding, | |
355 | * before we flush quotas and blow away the quotainfo structure. | |
356 | */ | |
357 | ASSERT(mp->m_rootip); | |
358 | xfs_qm_dqdetach(mp->m_rootip); | |
359 | if (mp->m_rbmip) | |
360 | xfs_qm_dqdetach(mp->m_rbmip); | |
361 | if (mp->m_rsumip) | |
362 | xfs_qm_dqdetach(mp->m_rsumip); | |
363 | ||
364 | /* | |
e57481dc | 365 | * Release the quota inodes. |
1da177e4 | 366 | */ |
1da177e4 | 367 | if (mp->m_quotainfo) { |
e57481dc CH |
368 | if (mp->m_quotainfo->qi_uquotaip) { |
369 | IRELE(mp->m_quotainfo->qi_uquotaip); | |
370 | mp->m_quotainfo->qi_uquotaip = NULL; | |
1da177e4 | 371 | } |
e57481dc CH |
372 | if (mp->m_quotainfo->qi_gquotaip) { |
373 | IRELE(mp->m_quotainfo->qi_gquotaip); | |
374 | mp->m_quotainfo->qi_gquotaip = NULL; | |
1da177e4 LT |
375 | } |
376 | } | |
1da177e4 LT |
377 | } |
378 | ||
1da177e4 LT |
379 | STATIC int |
380 | xfs_qm_dqattach_one( | |
381 | xfs_inode_t *ip, | |
382 | xfs_dqid_t id, | |
383 | uint type, | |
384 | uint doalloc, | |
1da177e4 LT |
385 | xfs_dquot_t *udqhint, /* hint */ |
386 | xfs_dquot_t **IO_idqpp) | |
387 | { | |
388 | xfs_dquot_t *dqp; | |
389 | int error; | |
390 | ||
579aa9ca | 391 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 392 | error = 0; |
8e9b6e7f | 393 | |
1da177e4 LT |
394 | /* |
395 | * See if we already have it in the inode itself. IO_idqpp is | |
396 | * &i_udquot or &i_gdquot. This made the code look weird, but | |
397 | * made the logic a lot simpler. | |
398 | */ | |
8e9b6e7f CH |
399 | dqp = *IO_idqpp; |
400 | if (dqp) { | |
0b1b213f | 401 | trace_xfs_dqattach_found(dqp); |
8e9b6e7f | 402 | return 0; |
1da177e4 LT |
403 | } |
404 | ||
405 | /* | |
406 | * udqhint is the i_udquot field in inode, and is non-NULL only | |
c8ad20ff | 407 | * when the type arg is group/project. Its purpose is to save a |
1da177e4 LT |
408 | * lookup by dqid (xfs_qm_dqget) by caching a group dquot inside |
409 | * the user dquot. | |
410 | */ | |
8e9b6e7f CH |
411 | if (udqhint) { |
412 | ASSERT(type == XFS_DQ_GROUP || type == XFS_DQ_PROJ); | |
1da177e4 LT |
413 | xfs_dqlock(udqhint); |
414 | ||
8e9b6e7f CH |
415 | /* |
416 | * No need to take dqlock to look at the id. | |
417 | * | |
418 | * The ID can't change until it gets reclaimed, and it won't | |
419 | * be reclaimed as long as we have a ref from inode and we | |
420 | * hold the ilock. | |
421 | */ | |
422 | dqp = udqhint->q_gdquot; | |
423 | if (dqp && be32_to_cpu(dqp->q_core.d_id) == id) { | |
8e9b6e7f | 424 | ASSERT(*IO_idqpp == NULL); |
8e9b6e7f | 425 | |
78e55892 | 426 | *IO_idqpp = xfs_qm_dqhold(dqp); |
1da177e4 | 427 | xfs_dqunlock(udqhint); |
8e9b6e7f | 428 | return 0; |
1da177e4 | 429 | } |
8e9b6e7f CH |
430 | |
431 | /* | |
432 | * We can't hold a dquot lock when we call the dqget code. | |
433 | * We'll deadlock in no time, because of (not conforming to) | |
434 | * lock ordering - the inodelock comes before any dquot lock, | |
435 | * and we may drop and reacquire the ilock in xfs_qm_dqget(). | |
436 | */ | |
1da177e4 | 437 | xfs_dqunlock(udqhint); |
8e9b6e7f CH |
438 | } |
439 | ||
1da177e4 LT |
440 | /* |
441 | * Find the dquot from somewhere. This bumps the | |
442 | * reference count of dquot and returns it locked. | |
443 | * This can return ENOENT if dquot didn't exist on | |
444 | * disk and we didn't ask it to allocate; | |
445 | * ESRCH if quotas got turned off suddenly. | |
446 | */ | |
db3e74b5 MH |
447 | error = xfs_qm_dqget(ip->i_mount, ip, id, type, |
448 | doalloc | XFS_QMOPT_DOWARN, &dqp); | |
8e9b6e7f CH |
449 | if (error) |
450 | return error; | |
1da177e4 | 451 | |
0b1b213f | 452 | trace_xfs_dqattach_get(dqp); |
8e9b6e7f | 453 | |
1da177e4 LT |
454 | /* |
455 | * dqget may have dropped and re-acquired the ilock, but it guarantees | |
456 | * that the dquot returned is the one that should go in the inode. | |
457 | */ | |
458 | *IO_idqpp = dqp; | |
8e9b6e7f CH |
459 | xfs_dqunlock(dqp); |
460 | return 0; | |
1da177e4 LT |
461 | } |
462 | ||
463 | ||
464 | /* | |
465 | * Given a udquot and gdquot, attach a ptr to the group dquot in the | |
ab680bb7 | 466 | * udquot as a hint for future lookups. |
1da177e4 LT |
467 | */ |
468 | STATIC void | |
469 | xfs_qm_dqattach_grouphint( | |
470 | xfs_dquot_t *udq, | |
8e9b6e7f | 471 | xfs_dquot_t *gdq) |
1da177e4 LT |
472 | { |
473 | xfs_dquot_t *tmp; | |
474 | ||
8e9b6e7f | 475 | xfs_dqlock(udq); |
1da177e4 | 476 | |
ab680bb7 CH |
477 | tmp = udq->q_gdquot; |
478 | if (tmp) { | |
479 | if (tmp == gdq) | |
480 | goto done; | |
1da177e4 LT |
481 | |
482 | udq->q_gdquot = NULL; | |
1da177e4 | 483 | xfs_qm_dqrele(tmp); |
1da177e4 | 484 | } |
8e9b6e7f | 485 | |
78e55892 | 486 | udq->q_gdquot = xfs_qm_dqhold(gdq); |
ab680bb7 | 487 | done: |
8e9b6e7f | 488 | xfs_dqunlock(udq); |
1da177e4 LT |
489 | } |
490 | ||
b4d05e30 CH |
491 | static bool |
492 | xfs_qm_need_dqattach( | |
493 | struct xfs_inode *ip) | |
494 | { | |
495 | struct xfs_mount *mp = ip->i_mount; | |
496 | ||
497 | if (!XFS_IS_QUOTA_RUNNING(mp)) | |
498 | return false; | |
499 | if (!XFS_IS_QUOTA_ON(mp)) | |
500 | return false; | |
501 | if (!XFS_NOT_DQATTACHED(mp, ip)) | |
502 | return false; | |
503 | if (ip->i_ino == mp->m_sb.sb_uquotino || | |
504 | ip->i_ino == mp->m_sb.sb_gquotino) | |
505 | return false; | |
506 | return true; | |
507 | } | |
1da177e4 LT |
508 | |
509 | /* | |
c8ad20ff NS |
510 | * Given a locked inode, attach dquot(s) to it, taking U/G/P-QUOTAON |
511 | * into account. | |
1da177e4 | 512 | * If XFS_QMOPT_DQALLOC, the dquot(s) will be allocated if needed. |
1da177e4 LT |
513 | * Inode may get unlocked and relocked in here, and the caller must deal with |
514 | * the consequences. | |
515 | */ | |
516 | int | |
7d095257 | 517 | xfs_qm_dqattach_locked( |
1da177e4 LT |
518 | xfs_inode_t *ip, |
519 | uint flags) | |
520 | { | |
521 | xfs_mount_t *mp = ip->i_mount; | |
522 | uint nquotas = 0; | |
523 | int error = 0; | |
524 | ||
b4d05e30 | 525 | if (!xfs_qm_need_dqattach(ip)) |
014c2544 | 526 | return 0; |
1da177e4 | 527 | |
7d095257 | 528 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
529 | |
530 | if (XFS_IS_UQUOTA_ON(mp)) { | |
531 | error = xfs_qm_dqattach_one(ip, ip->i_d.di_uid, XFS_DQ_USER, | |
532 | flags & XFS_QMOPT_DQALLOC, | |
1da177e4 LT |
533 | NULL, &ip->i_udquot); |
534 | if (error) | |
535 | goto done; | |
536 | nquotas++; | |
537 | } | |
579aa9ca CH |
538 | |
539 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); | |
c8ad20ff NS |
540 | if (XFS_IS_OQUOTA_ON(mp)) { |
541 | error = XFS_IS_GQUOTA_ON(mp) ? | |
542 | xfs_qm_dqattach_one(ip, ip->i_d.di_gid, XFS_DQ_GROUP, | |
543 | flags & XFS_QMOPT_DQALLOC, | |
c8ad20ff | 544 | ip->i_udquot, &ip->i_gdquot) : |
6743099c | 545 | xfs_qm_dqattach_one(ip, xfs_get_projid(ip), XFS_DQ_PROJ, |
1da177e4 | 546 | flags & XFS_QMOPT_DQALLOC, |
1da177e4 LT |
547 | ip->i_udquot, &ip->i_gdquot); |
548 | /* | |
549 | * Don't worry about the udquot that we may have | |
550 | * attached above. It'll get detached, if not already. | |
551 | */ | |
552 | if (error) | |
553 | goto done; | |
554 | nquotas++; | |
555 | } | |
556 | ||
557 | /* | |
558 | * Attach this group quota to the user quota as a hint. | |
559 | * This WON'T, in general, result in a thrash. | |
560 | */ | |
561 | if (nquotas == 2) { | |
579aa9ca | 562 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
563 | ASSERT(ip->i_udquot); |
564 | ASSERT(ip->i_gdquot); | |
565 | ||
566 | /* | |
ab680bb7 CH |
567 | * We do not have i_udquot locked at this point, but this check |
568 | * is OK since we don't depend on the i_gdquot to be accurate | |
569 | * 100% all the time. It is just a hint, and this will | |
570 | * succeed in general. | |
1da177e4 | 571 | */ |
ab680bb7 CH |
572 | if (ip->i_udquot->q_gdquot != ip->i_gdquot) |
573 | xfs_qm_dqattach_grouphint(ip->i_udquot, ip->i_gdquot); | |
1da177e4 LT |
574 | } |
575 | ||
7d095257 | 576 | done: |
ea15ab3c CH |
577 | #ifdef DEBUG |
578 | if (!error) { | |
1da177e4 LT |
579 | if (XFS_IS_UQUOTA_ON(mp)) |
580 | ASSERT(ip->i_udquot); | |
c8ad20ff | 581 | if (XFS_IS_OQUOTA_ON(mp)) |
1da177e4 LT |
582 | ASSERT(ip->i_gdquot); |
583 | } | |
7d095257 | 584 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 585 | #endif |
7d095257 CH |
586 | return error; |
587 | } | |
1da177e4 | 588 | |
7d095257 CH |
589 | int |
590 | xfs_qm_dqattach( | |
591 | struct xfs_inode *ip, | |
592 | uint flags) | |
593 | { | |
594 | int error; | |
595 | ||
b4d05e30 CH |
596 | if (!xfs_qm_need_dqattach(ip)) |
597 | return 0; | |
598 | ||
7d095257 CH |
599 | xfs_ilock(ip, XFS_ILOCK_EXCL); |
600 | error = xfs_qm_dqattach_locked(ip, flags); | |
601 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1da177e4 | 602 | |
014c2544 | 603 | return error; |
1da177e4 LT |
604 | } |
605 | ||
606 | /* | |
607 | * Release dquots (and their references) if any. | |
608 | * The inode should be locked EXCL except when this's called by | |
609 | * xfs_ireclaim. | |
610 | */ | |
611 | void | |
612 | xfs_qm_dqdetach( | |
613 | xfs_inode_t *ip) | |
614 | { | |
615 | if (!(ip->i_udquot || ip->i_gdquot)) | |
616 | return; | |
617 | ||
0b1b213f CH |
618 | trace_xfs_dquot_dqdetach(ip); |
619 | ||
1da177e4 LT |
620 | ASSERT(ip->i_ino != ip->i_mount->m_sb.sb_uquotino); |
621 | ASSERT(ip->i_ino != ip->i_mount->m_sb.sb_gquotino); | |
1da177e4 LT |
622 | if (ip->i_udquot) { |
623 | xfs_qm_dqrele(ip->i_udquot); | |
624 | ip->i_udquot = NULL; | |
625 | } | |
626 | if (ip->i_gdquot) { | |
627 | xfs_qm_dqrele(ip->i_gdquot); | |
628 | ip->i_gdquot = NULL; | |
629 | } | |
630 | } | |
631 | ||
1da177e4 LT |
632 | /* |
633 | * This initializes all the quota information that's kept in the | |
634 | * mount structure | |
635 | */ | |
ba0f32d4 | 636 | STATIC int |
1da177e4 LT |
637 | xfs_qm_init_quotainfo( |
638 | xfs_mount_t *mp) | |
639 | { | |
640 | xfs_quotainfo_t *qinf; | |
641 | int error; | |
642 | xfs_dquot_t *dqp; | |
643 | ||
644 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
645 | ||
1da177e4 LT |
646 | qinf = mp->m_quotainfo = kmem_zalloc(sizeof(xfs_quotainfo_t), KM_SLEEP); |
647 | ||
648 | /* | |
649 | * See if quotainodes are setup, and if not, allocate them, | |
650 | * and change the superblock accordingly. | |
651 | */ | |
652 | if ((error = xfs_qm_init_quotainos(mp))) { | |
f0e2d93c | 653 | kmem_free(qinf); |
1da177e4 | 654 | mp->m_quotainfo = NULL; |
014c2544 | 655 | return error; |
1da177e4 LT |
656 | } |
657 | ||
9f920f11 CH |
658 | INIT_RADIX_TREE(&qinf->qi_uquota_tree, GFP_NOFS); |
659 | INIT_RADIX_TREE(&qinf->qi_gquota_tree, GFP_NOFS); | |
660 | mutex_init(&qinf->qi_tree_lock); | |
661 | ||
f8739c3c CH |
662 | INIT_LIST_HEAD(&qinf->qi_lru_list); |
663 | qinf->qi_lru_count = 0; | |
664 | mutex_init(&qinf->qi_lru_lock); | |
665 | ||
1da177e4 | 666 | /* mutex used to serialize quotaoffs */ |
794ee1ba | 667 | mutex_init(&qinf->qi_quotaofflock); |
1da177e4 LT |
668 | |
669 | /* Precalc some constants */ | |
670 | qinf->qi_dqchunklen = XFS_FSB_TO_BB(mp, XFS_DQUOT_CLUSTER_SIZE_FSB); | |
671 | ASSERT(qinf->qi_dqchunklen); | |
672 | qinf->qi_dqperchunk = BBTOB(qinf->qi_dqchunklen); | |
673 | do_div(qinf->qi_dqperchunk, sizeof(xfs_dqblk_t)); | |
674 | ||
675 | mp->m_qflags |= (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_CHKD); | |
676 | ||
677 | /* | |
678 | * We try to get the limits from the superuser's limits fields. | |
679 | * This is quite hacky, but it is standard quota practice. | |
7ae44407 | 680 | * |
1da177e4 LT |
681 | * We look at the USR dquot with id == 0 first, but if user quotas |
682 | * are not enabled we goto the GRP dquot with id == 0. | |
683 | * We don't really care to keep separate default limits for user | |
684 | * and group quotas, at least not at this point. | |
7ae44407 CH |
685 | * |
686 | * Since we may not have done a quotacheck by this point, just read | |
687 | * the dquot without attaching it to any hashtables or lists. | |
1da177e4 | 688 | */ |
7ae44407 CH |
689 | error = xfs_qm_dqread(mp, 0, |
690 | XFS_IS_UQUOTA_RUNNING(mp) ? XFS_DQ_USER : | |
691 | (XFS_IS_GQUOTA_RUNNING(mp) ? XFS_DQ_GROUP : | |
692 | XFS_DQ_PROJ), | |
693 | XFS_QMOPT_DOWARN, &dqp); | |
694 | if (!error) { | |
1da177e4 LT |
695 | xfs_disk_dquot_t *ddqp = &dqp->q_core; |
696 | ||
697 | /* | |
698 | * The warnings and timers set the grace period given to | |
699 | * a user or group before he or she can not perform any | |
700 | * more writing. If it is zero, a default is used. | |
701 | */ | |
1149d96a CH |
702 | qinf->qi_btimelimit = ddqp->d_btimer ? |
703 | be32_to_cpu(ddqp->d_btimer) : XFS_QM_BTIMELIMIT; | |
704 | qinf->qi_itimelimit = ddqp->d_itimer ? | |
705 | be32_to_cpu(ddqp->d_itimer) : XFS_QM_ITIMELIMIT; | |
706 | qinf->qi_rtbtimelimit = ddqp->d_rtbtimer ? | |
707 | be32_to_cpu(ddqp->d_rtbtimer) : XFS_QM_RTBTIMELIMIT; | |
708 | qinf->qi_bwarnlimit = ddqp->d_bwarns ? | |
709 | be16_to_cpu(ddqp->d_bwarns) : XFS_QM_BWARNLIMIT; | |
710 | qinf->qi_iwarnlimit = ddqp->d_iwarns ? | |
711 | be16_to_cpu(ddqp->d_iwarns) : XFS_QM_IWARNLIMIT; | |
712 | qinf->qi_rtbwarnlimit = ddqp->d_rtbwarns ? | |
713 | be16_to_cpu(ddqp->d_rtbwarns) : XFS_QM_RTBWARNLIMIT; | |
714 | qinf->qi_bhardlimit = be64_to_cpu(ddqp->d_blk_hardlimit); | |
715 | qinf->qi_bsoftlimit = be64_to_cpu(ddqp->d_blk_softlimit); | |
716 | qinf->qi_ihardlimit = be64_to_cpu(ddqp->d_ino_hardlimit); | |
717 | qinf->qi_isoftlimit = be64_to_cpu(ddqp->d_ino_softlimit); | |
718 | qinf->qi_rtbhardlimit = be64_to_cpu(ddqp->d_rtb_hardlimit); | |
719 | qinf->qi_rtbsoftlimit = be64_to_cpu(ddqp->d_rtb_softlimit); | |
1da177e4 | 720 | |
1da177e4 LT |
721 | xfs_qm_dqdestroy(dqp); |
722 | } else { | |
723 | qinf->qi_btimelimit = XFS_QM_BTIMELIMIT; | |
724 | qinf->qi_itimelimit = XFS_QM_ITIMELIMIT; | |
725 | qinf->qi_rtbtimelimit = XFS_QM_RTBTIMELIMIT; | |
726 | qinf->qi_bwarnlimit = XFS_QM_BWARNLIMIT; | |
727 | qinf->qi_iwarnlimit = XFS_QM_IWARNLIMIT; | |
06d10dd9 | 728 | qinf->qi_rtbwarnlimit = XFS_QM_RTBWARNLIMIT; |
1da177e4 LT |
729 | } |
730 | ||
f8739c3c CH |
731 | qinf->qi_shrinker.shrink = xfs_qm_shake; |
732 | qinf->qi_shrinker.seeks = DEFAULT_SEEKS; | |
733 | register_shrinker(&qinf->qi_shrinker); | |
014c2544 | 734 | return 0; |
1da177e4 LT |
735 | } |
736 | ||
737 | ||
738 | /* | |
739 | * Gets called when unmounting a filesystem or when all quotas get | |
740 | * turned off. | |
741 | * This purges the quota inodes, destroys locks and frees itself. | |
742 | */ | |
743 | void | |
744 | xfs_qm_destroy_quotainfo( | |
745 | xfs_mount_t *mp) | |
746 | { | |
747 | xfs_quotainfo_t *qi; | |
748 | ||
749 | qi = mp->m_quotainfo; | |
750 | ASSERT(qi != NULL); | |
1da177e4 | 751 | |
f8739c3c CH |
752 | unregister_shrinker(&qi->qi_shrinker); |
753 | ||
1da177e4 | 754 | if (qi->qi_uquotaip) { |
26cc0021 | 755 | IRELE(qi->qi_uquotaip); |
1da177e4 LT |
756 | qi->qi_uquotaip = NULL; /* paranoia */ |
757 | } | |
758 | if (qi->qi_gquotaip) { | |
26cc0021 | 759 | IRELE(qi->qi_gquotaip); |
1da177e4 LT |
760 | qi->qi_gquotaip = NULL; |
761 | } | |
762 | mutex_destroy(&qi->qi_quotaofflock); | |
f0e2d93c | 763 | kmem_free(qi); |
1da177e4 LT |
764 | mp->m_quotainfo = NULL; |
765 | } | |
766 | ||
1da177e4 LT |
767 | /* |
768 | * Create an inode and return with a reference already taken, but unlocked | |
769 | * This is how we create quota inodes | |
770 | */ | |
771 | STATIC int | |
772 | xfs_qm_qino_alloc( | |
773 | xfs_mount_t *mp, | |
774 | xfs_inode_t **ip, | |
775 | __int64_t sbfields, | |
776 | uint flags) | |
777 | { | |
778 | xfs_trans_t *tp; | |
779 | int error; | |
1da177e4 LT |
780 | int committed; |
781 | ||
061f7209 | 782 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QINOCREATE); |
1da177e4 LT |
783 | if ((error = xfs_trans_reserve(tp, |
784 | XFS_QM_QINOCREATE_SPACE_RES(mp), | |
785 | XFS_CREATE_LOG_RES(mp), 0, | |
786 | XFS_TRANS_PERM_LOG_RES, | |
787 | XFS_CREATE_LOG_COUNT))) { | |
788 | xfs_trans_cancel(tp, 0); | |
014c2544 | 789 | return error; |
1da177e4 | 790 | } |
1da177e4 | 791 | |
6c77b0ea CH |
792 | error = xfs_dir_ialloc(&tp, NULL, S_IFREG, 1, 0, 0, 1, ip, &committed); |
793 | if (error) { | |
1da177e4 LT |
794 | xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | |
795 | XFS_TRANS_ABORT); | |
014c2544 | 796 | return error; |
1da177e4 LT |
797 | } |
798 | ||
1da177e4 LT |
799 | /* |
800 | * Make the changes in the superblock, and log those too. | |
801 | * sbfields arg may contain fields other than *QUOTINO; | |
802 | * VERSIONNUM for example. | |
803 | */ | |
3685c2a1 | 804 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 805 | if (flags & XFS_QMOPT_SBVERSION) { |
62118709 | 806 | ASSERT(!xfs_sb_version_hasquota(&mp->m_sb)); |
1da177e4 LT |
807 | ASSERT((sbfields & (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | |
808 | XFS_SB_GQUOTINO | XFS_SB_QFLAGS)) == | |
809 | (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | | |
810 | XFS_SB_GQUOTINO | XFS_SB_QFLAGS)); | |
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; | |
815 | ||
816 | /* qflags will get updated _after_ quotacheck */ | |
817 | mp->m_sb.sb_qflags = 0; | |
1da177e4 LT |
818 | } |
819 | if (flags & XFS_QMOPT_UQUOTA) | |
820 | mp->m_sb.sb_uquotino = (*ip)->i_ino; | |
821 | else | |
822 | mp->m_sb.sb_gquotino = (*ip)->i_ino; | |
3685c2a1 | 823 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
824 | xfs_mod_sb(tp, sbfields); |
825 | ||
1c72bf90 | 826 | if ((error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES))) { |
53487786 | 827 | xfs_alert(mp, "%s failed (error %d)!", __func__, error); |
014c2544 | 828 | return error; |
1da177e4 | 829 | } |
014c2544 | 830 | return 0; |
1da177e4 LT |
831 | } |
832 | ||
833 | ||
5b139738 | 834 | STATIC void |
1da177e4 LT |
835 | xfs_qm_reset_dqcounts( |
836 | xfs_mount_t *mp, | |
837 | xfs_buf_t *bp, | |
838 | xfs_dqid_t id, | |
839 | uint type) | |
840 | { | |
841 | xfs_disk_dquot_t *ddq; | |
842 | int j; | |
843 | ||
0b1b213f CH |
844 | trace_xfs_reset_dqcounts(bp, _RET_IP_); |
845 | ||
1da177e4 LT |
846 | /* |
847 | * Reset all counters and timers. They'll be | |
848 | * started afresh by xfs_qm_quotacheck. | |
849 | */ | |
850 | #ifdef DEBUG | |
851 | j = XFS_FSB_TO_B(mp, XFS_DQUOT_CLUSTER_SIZE_FSB); | |
852 | do_div(j, sizeof(xfs_dqblk_t)); | |
8a7b8a89 | 853 | ASSERT(mp->m_quotainfo->qi_dqperchunk == j); |
1da177e4 | 854 | #endif |
62926044 | 855 | ddq = bp->b_addr; |
8a7b8a89 | 856 | for (j = 0; j < mp->m_quotainfo->qi_dqperchunk; j++) { |
1da177e4 LT |
857 | /* |
858 | * Do a sanity check, and if needed, repair the dqblk. Don't | |
859 | * output any warnings because it's perfectly possible to | |
c41564b5 | 860 | * find uninitialised dquot blks. See comment in xfs_qm_dqcheck. |
1da177e4 | 861 | */ |
a0fa2b67 | 862 | (void) xfs_qm_dqcheck(mp, ddq, id+j, type, XFS_QMOPT_DQREPAIR, |
1da177e4 | 863 | "xfs_quotacheck"); |
1149d96a CH |
864 | ddq->d_bcount = 0; |
865 | ddq->d_icount = 0; | |
866 | ddq->d_rtbcount = 0; | |
867 | ddq->d_btimer = 0; | |
868 | ddq->d_itimer = 0; | |
869 | ddq->d_rtbtimer = 0; | |
870 | ddq->d_bwarns = 0; | |
871 | ddq->d_iwarns = 0; | |
872 | ddq->d_rtbwarns = 0; | |
1da177e4 LT |
873 | ddq = (xfs_disk_dquot_t *) ((xfs_dqblk_t *)ddq + 1); |
874 | } | |
1da177e4 LT |
875 | } |
876 | ||
877 | STATIC int | |
878 | xfs_qm_dqiter_bufs( | |
879 | xfs_mount_t *mp, | |
880 | xfs_dqid_t firstid, | |
881 | xfs_fsblock_t bno, | |
882 | xfs_filblks_t blkcnt, | |
883 | uint flags) | |
884 | { | |
885 | xfs_buf_t *bp; | |
886 | int error; | |
c8ad20ff | 887 | int type; |
1da177e4 LT |
888 | |
889 | ASSERT(blkcnt > 0); | |
c8ad20ff NS |
890 | type = flags & XFS_QMOPT_UQUOTA ? XFS_DQ_USER : |
891 | (flags & XFS_QMOPT_PQUOTA ? XFS_DQ_PROJ : XFS_DQ_GROUP); | |
1da177e4 LT |
892 | error = 0; |
893 | ||
894 | /* | |
895 | * Blkcnt arg can be a very big number, and might even be | |
896 | * larger than the log itself. So, we have to break it up into | |
897 | * manageable-sized transactions. | |
898 | * Note that we don't start a permanent transaction here; we might | |
899 | * not be able to get a log reservation for the whole thing up front, | |
900 | * and we don't really care to either, because we just discard | |
901 | * everything if we were to crash in the middle of this loop. | |
902 | */ | |
903 | while (blkcnt--) { | |
904 | error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, | |
905 | XFS_FSB_TO_DADDR(mp, bno), | |
8a7b8a89 | 906 | mp->m_quotainfo->qi_dqchunklen, 0, &bp); |
1da177e4 LT |
907 | if (error) |
908 | break; | |
909 | ||
5b139738 | 910 | xfs_qm_reset_dqcounts(mp, bp, firstid, type); |
61551f1e CH |
911 | xfs_buf_delwri_queue(bp); |
912 | xfs_buf_relse(bp); | |
1da177e4 LT |
913 | /* |
914 | * goto the next block. | |
915 | */ | |
916 | bno++; | |
8a7b8a89 | 917 | firstid += mp->m_quotainfo->qi_dqperchunk; |
1da177e4 | 918 | } |
014c2544 | 919 | return error; |
1da177e4 LT |
920 | } |
921 | ||
922 | /* | |
c8ad20ff | 923 | * Iterate over all allocated USR/GRP/PRJ dquots in the system, calling a |
1da177e4 LT |
924 | * caller supplied function for every chunk of dquots that we find. |
925 | */ | |
926 | STATIC int | |
927 | xfs_qm_dqiterate( | |
928 | xfs_mount_t *mp, | |
929 | xfs_inode_t *qip, | |
930 | uint flags) | |
931 | { | |
932 | xfs_bmbt_irec_t *map; | |
933 | int i, nmaps; /* number of map entries */ | |
934 | int error; /* return value */ | |
935 | xfs_fileoff_t lblkno; | |
936 | xfs_filblks_t maxlblkcnt; | |
937 | xfs_dqid_t firstid; | |
938 | xfs_fsblock_t rablkno; | |
939 | xfs_filblks_t rablkcnt; | |
940 | ||
941 | error = 0; | |
942 | /* | |
c41564b5 | 943 | * This looks racy, but we can't keep an inode lock across a |
1da177e4 LT |
944 | * trans_reserve. But, this gets called during quotacheck, and that |
945 | * happens only at mount time which is single threaded. | |
946 | */ | |
947 | if (qip->i_d.di_nblocks == 0) | |
014c2544 | 948 | return 0; |
1da177e4 LT |
949 | |
950 | map = kmem_alloc(XFS_DQITER_MAP_SIZE * sizeof(*map), KM_SLEEP); | |
951 | ||
952 | lblkno = 0; | |
953 | maxlblkcnt = XFS_B_TO_FSB(mp, (xfs_ufsize_t)XFS_MAXIOFFSET(mp)); | |
954 | do { | |
955 | nmaps = XFS_DQITER_MAP_SIZE; | |
956 | /* | |
957 | * We aren't changing the inode itself. Just changing | |
958 | * some of its data. No new blocks are added here, and | |
959 | * the inode is never added to the transaction. | |
960 | */ | |
961 | xfs_ilock(qip, XFS_ILOCK_SHARED); | |
5c8ed202 DC |
962 | error = xfs_bmapi_read(qip, lblkno, maxlblkcnt - lblkno, |
963 | map, &nmaps, 0); | |
1da177e4 LT |
964 | xfs_iunlock(qip, XFS_ILOCK_SHARED); |
965 | if (error) | |
966 | break; | |
967 | ||
968 | ASSERT(nmaps <= XFS_DQITER_MAP_SIZE); | |
969 | for (i = 0; i < nmaps; i++) { | |
970 | ASSERT(map[i].br_startblock != DELAYSTARTBLOCK); | |
971 | ASSERT(map[i].br_blockcount); | |
972 | ||
973 | ||
974 | lblkno += map[i].br_blockcount; | |
975 | ||
976 | if (map[i].br_startblock == HOLESTARTBLOCK) | |
977 | continue; | |
978 | ||
979 | firstid = (xfs_dqid_t) map[i].br_startoff * | |
8a7b8a89 | 980 | mp->m_quotainfo->qi_dqperchunk; |
1da177e4 LT |
981 | /* |
982 | * Do a read-ahead on the next extent. | |
983 | */ | |
984 | if ((i+1 < nmaps) && | |
985 | (map[i+1].br_startblock != HOLESTARTBLOCK)) { | |
986 | rablkcnt = map[i+1].br_blockcount; | |
987 | rablkno = map[i+1].br_startblock; | |
988 | while (rablkcnt--) { | |
1a1a3e97 | 989 | xfs_buf_readahead(mp->m_ddev_targp, |
1da177e4 | 990 | XFS_FSB_TO_DADDR(mp, rablkno), |
8a7b8a89 | 991 | mp->m_quotainfo->qi_dqchunklen); |
1da177e4 LT |
992 | rablkno++; |
993 | } | |
994 | } | |
995 | /* | |
996 | * Iterate thru all the blks in the extent and | |
997 | * reset the counters of all the dquots inside them. | |
998 | */ | |
999 | if ((error = xfs_qm_dqiter_bufs(mp, | |
1000 | firstid, | |
1001 | map[i].br_startblock, | |
1002 | map[i].br_blockcount, | |
1003 | flags))) { | |
1004 | break; | |
1005 | } | |
1006 | } | |
1007 | ||
1008 | if (error) | |
1009 | break; | |
1010 | } while (nmaps > 0); | |
1011 | ||
f0e2d93c | 1012 | kmem_free(map); |
1da177e4 | 1013 | |
014c2544 | 1014 | return error; |
1da177e4 LT |
1015 | } |
1016 | ||
1017 | /* | |
1018 | * Called by dqusage_adjust in doing a quotacheck. | |
52fda114 CH |
1019 | * |
1020 | * Given the inode, and a dquot id this updates both the incore dqout as well | |
1021 | * as the buffer copy. This is so that once the quotacheck is done, we can | |
1022 | * just log all the buffers, as opposed to logging numerous updates to | |
1023 | * individual dquots. | |
1da177e4 | 1024 | */ |
52fda114 | 1025 | STATIC int |
1da177e4 | 1026 | xfs_qm_quotacheck_dqadjust( |
52fda114 CH |
1027 | struct xfs_inode *ip, |
1028 | xfs_dqid_t id, | |
1029 | uint type, | |
1da177e4 LT |
1030 | xfs_qcnt_t nblks, |
1031 | xfs_qcnt_t rtblks) | |
1032 | { | |
52fda114 CH |
1033 | struct xfs_mount *mp = ip->i_mount; |
1034 | struct xfs_dquot *dqp; | |
1035 | int error; | |
1036 | ||
1037 | error = xfs_qm_dqget(mp, ip, id, type, | |
1038 | XFS_QMOPT_DQALLOC | XFS_QMOPT_DOWARN, &dqp); | |
1039 | if (error) { | |
1040 | /* | |
1041 | * Shouldn't be able to turn off quotas here. | |
1042 | */ | |
1043 | ASSERT(error != ESRCH); | |
1044 | ASSERT(error != ENOENT); | |
1045 | return error; | |
1046 | } | |
0b1b213f CH |
1047 | |
1048 | trace_xfs_dqadjust(dqp); | |
1049 | ||
1da177e4 LT |
1050 | /* |
1051 | * Adjust the inode count and the block count to reflect this inode's | |
1052 | * resource usage. | |
1053 | */ | |
413d57c9 | 1054 | be64_add_cpu(&dqp->q_core.d_icount, 1); |
1da177e4 LT |
1055 | dqp->q_res_icount++; |
1056 | if (nblks) { | |
413d57c9 | 1057 | be64_add_cpu(&dqp->q_core.d_bcount, nblks); |
1da177e4 LT |
1058 | dqp->q_res_bcount += nblks; |
1059 | } | |
1060 | if (rtblks) { | |
413d57c9 | 1061 | be64_add_cpu(&dqp->q_core.d_rtbcount, rtblks); |
1da177e4 LT |
1062 | dqp->q_res_rtbcount += rtblks; |
1063 | } | |
1064 | ||
1065 | /* | |
1066 | * Set default limits, adjust timers (since we changed usages) | |
191f8488 CH |
1067 | * |
1068 | * There are no timers for the default values set in the root dquot. | |
1da177e4 | 1069 | */ |
191f8488 | 1070 | if (dqp->q_core.d_id) { |
52fda114 CH |
1071 | xfs_qm_adjust_dqlimits(mp, &dqp->q_core); |
1072 | xfs_qm_adjust_dqtimers(mp, &dqp->q_core); | |
1da177e4 LT |
1073 | } |
1074 | ||
1075 | dqp->dq_flags |= XFS_DQ_DIRTY; | |
52fda114 CH |
1076 | xfs_qm_dqput(dqp); |
1077 | return 0; | |
1da177e4 LT |
1078 | } |
1079 | ||
1080 | STATIC int | |
1081 | xfs_qm_get_rtblks( | |
1082 | xfs_inode_t *ip, | |
1083 | xfs_qcnt_t *O_rtblks) | |
1084 | { | |
1085 | xfs_filblks_t rtblks; /* total rt blks */ | |
4eea22f0 | 1086 | xfs_extnum_t idx; /* extent record index */ |
1da177e4 LT |
1087 | xfs_ifork_t *ifp; /* inode fork pointer */ |
1088 | xfs_extnum_t nextents; /* number of extent entries */ | |
1da177e4 LT |
1089 | int error; |
1090 | ||
1091 | ASSERT(XFS_IS_REALTIME_INODE(ip)); | |
1092 | ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK); | |
1093 | if (!(ifp->if_flags & XFS_IFEXTENTS)) { | |
1094 | if ((error = xfs_iread_extents(NULL, ip, XFS_DATA_FORK))) | |
014c2544 | 1095 | return error; |
1da177e4 LT |
1096 | } |
1097 | rtblks = 0; | |
4eea22f0 | 1098 | nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t); |
a6f64d4a CH |
1099 | for (idx = 0; idx < nextents; idx++) |
1100 | rtblks += xfs_bmbt_get_blockcount(xfs_iext_get_ext(ifp, idx)); | |
1da177e4 | 1101 | *O_rtblks = (xfs_qcnt_t)rtblks; |
014c2544 | 1102 | return 0; |
1da177e4 LT |
1103 | } |
1104 | ||
1105 | /* | |
1106 | * callback routine supplied to bulkstat(). Given an inumber, find its | |
1107 | * dquots and update them to account for resources taken by that inode. | |
1108 | */ | |
1109 | /* ARGSUSED */ | |
1110 | STATIC int | |
1111 | xfs_qm_dqusage_adjust( | |
1112 | xfs_mount_t *mp, /* mount point for filesystem */ | |
1113 | xfs_ino_t ino, /* inode number to get data for */ | |
1114 | void __user *buffer, /* not used */ | |
1115 | int ubsize, /* not used */ | |
1da177e4 | 1116 | int *ubused, /* not used */ |
1da177e4 LT |
1117 | int *res) /* result code value */ |
1118 | { | |
1119 | xfs_inode_t *ip; | |
52fda114 | 1120 | xfs_qcnt_t nblks, rtblks = 0; |
1da177e4 LT |
1121 | int error; |
1122 | ||
1123 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
1124 | ||
1125 | /* | |
1126 | * rootino must have its resources accounted for, not so with the quota | |
1127 | * inodes. | |
1128 | */ | |
1129 | if (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino) { | |
1130 | *res = BULKSTAT_RV_NOTHING; | |
1131 | return XFS_ERROR(EINVAL); | |
1132 | } | |
1133 | ||
1134 | /* | |
1135 | * We don't _need_ to take the ilock EXCL. However, the xfs_qm_dqget | |
1136 | * interface expects the inode to be exclusively locked because that's | |
1137 | * the case in all other instances. It's OK that we do this because | |
1138 | * quotacheck is done only at mount time. | |
1139 | */ | |
52fda114 CH |
1140 | error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_EXCL, &ip); |
1141 | if (error) { | |
1da177e4 | 1142 | *res = BULKSTAT_RV_NOTHING; |
014c2544 | 1143 | return error; |
1da177e4 LT |
1144 | } |
1145 | ||
52fda114 | 1146 | ASSERT(ip->i_delayed_blks == 0); |
1da177e4 | 1147 | |
52fda114 | 1148 | if (XFS_IS_REALTIME_INODE(ip)) { |
1da177e4 LT |
1149 | /* |
1150 | * Walk thru the extent list and count the realtime blocks. | |
1151 | */ | |
52fda114 CH |
1152 | error = xfs_qm_get_rtblks(ip, &rtblks); |
1153 | if (error) | |
1154 | goto error0; | |
1da177e4 | 1155 | } |
1da177e4 | 1156 | |
52fda114 | 1157 | nblks = (xfs_qcnt_t)ip->i_d.di_nblocks - rtblks; |
1da177e4 LT |
1158 | |
1159 | /* | |
1160 | * Add the (disk blocks and inode) resources occupied by this | |
1161 | * inode to its dquots. We do this adjustment in the incore dquot, | |
1162 | * and also copy the changes to its buffer. | |
1163 | * We don't care about putting these changes in a transaction | |
1164 | * envelope because if we crash in the middle of a 'quotacheck' | |
1165 | * we have to start from the beginning anyway. | |
1166 | * Once we're done, we'll log all the dquot bufs. | |
1167 | * | |
c41564b5 | 1168 | * The *QUOTA_ON checks below may look pretty racy, but quotachecks |
1da177e4 LT |
1169 | * and quotaoffs don't race. (Quotachecks happen at mount time only). |
1170 | */ | |
1171 | if (XFS_IS_UQUOTA_ON(mp)) { | |
52fda114 CH |
1172 | error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_uid, |
1173 | XFS_DQ_USER, nblks, rtblks); | |
1174 | if (error) | |
1175 | goto error0; | |
1da177e4 | 1176 | } |
52fda114 CH |
1177 | |
1178 | if (XFS_IS_GQUOTA_ON(mp)) { | |
1179 | error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_gid, | |
1180 | XFS_DQ_GROUP, nblks, rtblks); | |
1181 | if (error) | |
1182 | goto error0; | |
1da177e4 | 1183 | } |
1da177e4 | 1184 | |
52fda114 | 1185 | if (XFS_IS_PQUOTA_ON(mp)) { |
6743099c | 1186 | error = xfs_qm_quotacheck_dqadjust(ip, xfs_get_projid(ip), |
52fda114 CH |
1187 | XFS_DQ_PROJ, nblks, rtblks); |
1188 | if (error) | |
1189 | goto error0; | |
1190 | } | |
1191 | ||
1192 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1193 | IRELE(ip); | |
1da177e4 | 1194 | *res = BULKSTAT_RV_DIDONE; |
014c2544 | 1195 | return 0; |
52fda114 CH |
1196 | |
1197 | error0: | |
1198 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1199 | IRELE(ip); | |
1200 | *res = BULKSTAT_RV_GIVEUP; | |
1201 | return error; | |
1da177e4 LT |
1202 | } |
1203 | ||
b84a3a96 CH |
1204 | STATIC int |
1205 | xfs_qm_flush_one( | |
1206 | struct xfs_dquot *dqp) | |
1207 | { | |
fe7257fd | 1208 | struct xfs_buf *bp = NULL; |
b84a3a96 CH |
1209 | int error = 0; |
1210 | ||
1211 | xfs_dqlock(dqp); | |
1212 | if (dqp->dq_flags & XFS_DQ_FREEING) | |
1213 | goto out_unlock; | |
1214 | if (!XFS_DQ_IS_DIRTY(dqp)) | |
1215 | goto out_unlock; | |
1216 | ||
1217 | if (!xfs_dqflock_nowait(dqp)) | |
1218 | xfs_dqflock_pushbuf_wait(dqp); | |
1219 | ||
fe7257fd CH |
1220 | error = xfs_qm_dqflush(dqp, &bp); |
1221 | if (error) | |
1222 | goto out_unlock; | |
b84a3a96 | 1223 | |
fe7257fd CH |
1224 | xfs_buf_delwri_queue(bp); |
1225 | xfs_buf_relse(bp); | |
b84a3a96 CH |
1226 | out_unlock: |
1227 | xfs_dqunlock(dqp); | |
1228 | return error; | |
1229 | } | |
1230 | ||
1da177e4 LT |
1231 | /* |
1232 | * Walk thru all the filesystem inodes and construct a consistent view | |
1233 | * of the disk quota world. If the quotacheck fails, disable quotas. | |
1234 | */ | |
1235 | int | |
1236 | xfs_qm_quotacheck( | |
1237 | xfs_mount_t *mp) | |
1238 | { | |
b84a3a96 | 1239 | int done, count, error, error2; |
1da177e4 LT |
1240 | xfs_ino_t lastino; |
1241 | size_t structsz; | |
1242 | xfs_inode_t *uip, *gip; | |
1243 | uint flags; | |
1244 | ||
1245 | count = INT_MAX; | |
1246 | structsz = 1; | |
1247 | lastino = 0; | |
1248 | flags = 0; | |
1249 | ||
8a7b8a89 | 1250 | ASSERT(mp->m_quotainfo->qi_uquotaip || mp->m_quotainfo->qi_gquotaip); |
1da177e4 LT |
1251 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1252 | ||
0b932ccc | 1253 | xfs_notice(mp, "Quotacheck needed: Please wait."); |
1da177e4 LT |
1254 | |
1255 | /* | |
c8ad20ff | 1256 | * First we go thru all the dquots on disk, USR and GRP/PRJ, and reset |
1da177e4 LT |
1257 | * their counters to zero. We need a clean slate. |
1258 | * We don't log our changes till later. | |
1259 | */ | |
8a7b8a89 CH |
1260 | uip = mp->m_quotainfo->qi_uquotaip; |
1261 | if (uip) { | |
1262 | error = xfs_qm_dqiterate(mp, uip, XFS_QMOPT_UQUOTA); | |
1263 | if (error) | |
1da177e4 LT |
1264 | goto error_return; |
1265 | flags |= XFS_UQUOTA_CHKD; | |
1266 | } | |
1267 | ||
8a7b8a89 CH |
1268 | gip = mp->m_quotainfo->qi_gquotaip; |
1269 | if (gip) { | |
1270 | error = xfs_qm_dqiterate(mp, gip, XFS_IS_GQUOTA_ON(mp) ? | |
1271 | XFS_QMOPT_GQUOTA : XFS_QMOPT_PQUOTA); | |
1272 | if (error) | |
1da177e4 | 1273 | goto error_return; |
c8ad20ff | 1274 | flags |= XFS_OQUOTA_CHKD; |
1da177e4 LT |
1275 | } |
1276 | ||
1277 | do { | |
1278 | /* | |
1279 | * Iterate thru all the inodes in the file system, | |
1280 | * adjusting the corresponding dquot counters in core. | |
1281 | */ | |
7dce11db CH |
1282 | error = xfs_bulkstat(mp, &lastino, &count, |
1283 | xfs_qm_dqusage_adjust, | |
1284 | structsz, NULL, &done); | |
1285 | if (error) | |
1da177e4 LT |
1286 | break; |
1287 | ||
7dce11db | 1288 | } while (!done); |
1da177e4 | 1289 | |
4b8879df | 1290 | /* |
b84a3a96 CH |
1291 | * We've made all the changes that we need to make incore. Flush them |
1292 | * down to disk buffers if everything was updated successfully. | |
4b8879df | 1293 | */ |
b84a3a96 CH |
1294 | if (XFS_IS_UQUOTA_ON(mp)) |
1295 | error = xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_flush_one); | |
1296 | if (XFS_IS_GQUOTA_ON(mp)) { | |
1297 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_flush_one); | |
1298 | if (!error) | |
1299 | error = error2; | |
1300 | } | |
1301 | if (XFS_IS_PQUOTA_ON(mp)) { | |
1302 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_flush_one); | |
1303 | if (!error) | |
1304 | error = error2; | |
1305 | } | |
4b8879df | 1306 | |
1da177e4 LT |
1307 | /* |
1308 | * We can get this error if we couldn't do a dquot allocation inside | |
1309 | * xfs_qm_dqusage_adjust (via bulkstat). We don't care about the | |
1310 | * dirty dquots that might be cached, we just want to get rid of them | |
1311 | * and turn quotaoff. The dquots won't be attached to any of the inodes | |
1312 | * at this point (because we intentionally didn't in dqget_noattach). | |
1313 | */ | |
1314 | if (error) { | |
8112e9dc | 1315 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
1da177e4 LT |
1316 | goto error_return; |
1317 | } | |
1da177e4 LT |
1318 | |
1319 | /* | |
1320 | * We didn't log anything, because if we crashed, we'll have to | |
1321 | * start the quotacheck from scratch anyway. However, we must make | |
1322 | * sure that our dquot changes are secure before we put the | |
1323 | * quotacheck'd stamp on the superblock. So, here we do a synchronous | |
1324 | * flush. | |
1325 | */ | |
a9add83e | 1326 | xfs_flush_buftarg(mp->m_ddev_targp, 1); |
1da177e4 LT |
1327 | |
1328 | /* | |
1329 | * If one type of quotas is off, then it will lose its | |
1330 | * quotachecked status, since we won't be doing accounting for | |
1331 | * that type anymore. | |
1332 | */ | |
4177af3a | 1333 | mp->m_qflags &= ~XFS_ALL_QUOTA_CHKD; |
1da177e4 LT |
1334 | mp->m_qflags |= flags; |
1335 | ||
1da177e4 LT |
1336 | error_return: |
1337 | if (error) { | |
0b932ccc DC |
1338 | xfs_warn(mp, |
1339 | "Quotacheck: Unsuccessful (Error %d): Disabling quotas.", | |
1340 | error); | |
1da177e4 LT |
1341 | /* |
1342 | * We must turn off quotas. | |
1343 | */ | |
1344 | ASSERT(mp->m_quotainfo != NULL); | |
1da177e4 | 1345 | xfs_qm_destroy_quotainfo(mp); |
31d5577b | 1346 | if (xfs_mount_reset_sbqflags(mp)) { |
0b932ccc DC |
1347 | xfs_warn(mp, |
1348 | "Quotacheck: Failed to reset quota flags."); | |
31d5577b | 1349 | } |
0b932ccc DC |
1350 | } else |
1351 | xfs_notice(mp, "Quotacheck: Done."); | |
1da177e4 LT |
1352 | return (error); |
1353 | } | |
1354 | ||
1355 | /* | |
1356 | * This is called after the superblock has been read in and we're ready to | |
1357 | * iget the quota inodes. | |
1358 | */ | |
1359 | STATIC int | |
1360 | xfs_qm_init_quotainos( | |
1361 | xfs_mount_t *mp) | |
1362 | { | |
1363 | xfs_inode_t *uip, *gip; | |
1364 | int error; | |
1365 | __int64_t sbflags; | |
1366 | uint flags; | |
1367 | ||
1368 | ASSERT(mp->m_quotainfo); | |
1369 | uip = gip = NULL; | |
1370 | sbflags = 0; | |
1371 | flags = 0; | |
1372 | ||
1373 | /* | |
1374 | * Get the uquota and gquota inodes | |
1375 | */ | |
62118709 | 1376 | if (xfs_sb_version_hasquota(&mp->m_sb)) { |
1da177e4 LT |
1377 | if (XFS_IS_UQUOTA_ON(mp) && |
1378 | mp->m_sb.sb_uquotino != NULLFSINO) { | |
1379 | ASSERT(mp->m_sb.sb_uquotino > 0); | |
1380 | if ((error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, | |
7b6259e7 | 1381 | 0, 0, &uip))) |
1da177e4 LT |
1382 | return XFS_ERROR(error); |
1383 | } | |
c8ad20ff | 1384 | if (XFS_IS_OQUOTA_ON(mp) && |
1da177e4 LT |
1385 | mp->m_sb.sb_gquotino != NULLFSINO) { |
1386 | ASSERT(mp->m_sb.sb_gquotino > 0); | |
1387 | if ((error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, | |
7b6259e7 | 1388 | 0, 0, &gip))) { |
1da177e4 | 1389 | if (uip) |
43355099 | 1390 | IRELE(uip); |
1da177e4 LT |
1391 | return XFS_ERROR(error); |
1392 | } | |
1393 | } | |
1394 | } else { | |
1395 | flags |= XFS_QMOPT_SBVERSION; | |
1396 | sbflags |= (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | | |
1397 | XFS_SB_GQUOTINO | XFS_SB_QFLAGS); | |
1398 | } | |
1399 | ||
1400 | /* | |
1401 | * Create the two inodes, if they don't exist already. The changes | |
1402 | * made above will get added to a transaction and logged in one of | |
1403 | * the qino_alloc calls below. If the device is readonly, | |
1404 | * temporarily switch to read-write to do this. | |
1405 | */ | |
1406 | if (XFS_IS_UQUOTA_ON(mp) && uip == NULL) { | |
1407 | if ((error = xfs_qm_qino_alloc(mp, &uip, | |
1408 | sbflags | XFS_SB_UQUOTINO, | |
1409 | flags | XFS_QMOPT_UQUOTA))) | |
1410 | return XFS_ERROR(error); | |
1411 | ||
1412 | flags &= ~XFS_QMOPT_SBVERSION; | |
1413 | } | |
c8ad20ff NS |
1414 | if (XFS_IS_OQUOTA_ON(mp) && gip == NULL) { |
1415 | flags |= (XFS_IS_GQUOTA_ON(mp) ? | |
1416 | XFS_QMOPT_GQUOTA : XFS_QMOPT_PQUOTA); | |
1417 | error = xfs_qm_qino_alloc(mp, &gip, | |
1418 | sbflags | XFS_SB_GQUOTINO, flags); | |
1419 | if (error) { | |
1da177e4 | 1420 | if (uip) |
43355099 | 1421 | IRELE(uip); |
1da177e4 LT |
1422 | |
1423 | return XFS_ERROR(error); | |
1424 | } | |
1425 | } | |
1426 | ||
8a7b8a89 CH |
1427 | mp->m_quotainfo->qi_uquotaip = uip; |
1428 | mp->m_quotainfo->qi_gquotaip = gip; | |
1da177e4 | 1429 | |
014c2544 | 1430 | return 0; |
1da177e4 LT |
1431 | } |
1432 | ||
92b2e5b3 CH |
1433 | STATIC void |
1434 | xfs_qm_dqfree_one( | |
1435 | struct xfs_dquot *dqp) | |
1436 | { | |
1437 | struct xfs_mount *mp = dqp->q_mount; | |
1438 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
1da177e4 | 1439 | |
9f920f11 CH |
1440 | mutex_lock(&qi->qi_tree_lock); |
1441 | radix_tree_delete(XFS_DQUOT_TREE(qi, dqp->q_core.d_flags), | |
1442 | be32_to_cpu(dqp->q_core.d_id)); | |
368e1361 | 1443 | |
92b2e5b3 | 1444 | qi->qi_dquots--; |
b84a3a96 | 1445 | mutex_unlock(&qi->qi_tree_lock); |
92b2e5b3 CH |
1446 | |
1447 | xfs_qm_dqdestroy(dqp); | |
1448 | } | |
1449 | ||
1450 | STATIC void | |
1451 | xfs_qm_dqreclaim_one( | |
1452 | struct xfs_dquot *dqp, | |
1453 | struct list_head *dispose_list) | |
1da177e4 | 1454 | { |
92b2e5b3 | 1455 | struct xfs_mount *mp = dqp->q_mount; |
f8739c3c | 1456 | struct xfs_quotainfo *qi = mp->m_quotainfo; |
92b2e5b3 | 1457 | int error; |
1da177e4 | 1458 | |
92b2e5b3 CH |
1459 | if (!xfs_dqlock_nowait(dqp)) |
1460 | goto out_busy; | |
bf72de31 | 1461 | |
92b2e5b3 CH |
1462 | /* |
1463 | * This dquot has acquired a reference in the meantime remove it from | |
1464 | * the freelist and try again. | |
1465 | */ | |
1466 | if (dqp->q_nrefs) { | |
1467 | xfs_dqunlock(dqp); | |
1da177e4 | 1468 | |
92b2e5b3 | 1469 | trace_xfs_dqreclaim_want(dqp); |
48776fd2 | 1470 | XFS_STATS_INC(xs_qm_dqwants); |
1da177e4 | 1471 | |
f8739c3c CH |
1472 | list_del_init(&dqp->q_lru); |
1473 | qi->qi_lru_count--; | |
48776fd2 | 1474 | XFS_STATS_DEC(xs_qm_dquot_unused); |
92b2e5b3 CH |
1475 | return; |
1476 | } | |
368e1361 | 1477 | |
92b2e5b3 CH |
1478 | /* |
1479 | * Try to grab the flush lock. If this dquot is in the process of | |
1480 | * getting flushed to disk, we don't want to reclaim it. | |
1481 | */ | |
1482 | if (!xfs_dqflock_nowait(dqp)) | |
1483 | goto out_busy; | |
0b1b213f | 1484 | |
92b2e5b3 CH |
1485 | /* |
1486 | * We have the flush lock so we know that this is not in the | |
1487 | * process of being flushed. So, if this is dirty, flush it | |
1488 | * DELWRI so that we don't get a freelist infested with | |
1489 | * dirty dquots. | |
1490 | */ | |
1491 | if (XFS_DQ_IS_DIRTY(dqp)) { | |
fe7257fd CH |
1492 | struct xfs_buf *bp = NULL; |
1493 | ||
92b2e5b3 | 1494 | trace_xfs_dqreclaim_dirty(dqp); |
0b1b213f | 1495 | |
92b2e5b3 CH |
1496 | /* |
1497 | * We flush it delayed write, so don't bother releasing the | |
1498 | * freelist lock. | |
1499 | */ | |
fe7257fd | 1500 | error = xfs_qm_dqflush(dqp, &bp); |
92b2e5b3 CH |
1501 | if (error) { |
1502 | xfs_warn(mp, "%s: dquot %p flush failed", | |
1503 | __func__, dqp); | |
fe7257fd | 1504 | goto out_busy; |
1da177e4 | 1505 | } |
368e1361 | 1506 | |
fe7257fd CH |
1507 | xfs_buf_delwri_queue(bp); |
1508 | xfs_buf_relse(bp); | |
1da177e4 | 1509 | /* |
92b2e5b3 CH |
1510 | * Give the dquot another try on the freelist, as the |
1511 | * flushing will take some time. | |
1da177e4 | 1512 | */ |
92b2e5b3 CH |
1513 | goto out_busy; |
1514 | } | |
1515 | xfs_dqfunlock(dqp); | |
92678554 | 1516 | |
92b2e5b3 CH |
1517 | /* |
1518 | * Prevent lookups now that we are past the point of no return. | |
1519 | */ | |
1520 | dqp->dq_flags |= XFS_DQ_FREEING; | |
1521 | xfs_dqunlock(dqp); | |
92678554 | 1522 | |
92b2e5b3 | 1523 | ASSERT(dqp->q_nrefs == 0); |
f8739c3c CH |
1524 | list_move_tail(&dqp->q_lru, dispose_list); |
1525 | qi->qi_lru_count--; | |
48776fd2 | 1526 | XFS_STATS_DEC(xs_qm_dquot_unused); |
92678554 | 1527 | |
92b2e5b3 | 1528 | trace_xfs_dqreclaim_done(dqp); |
48776fd2 | 1529 | XFS_STATS_INC(xs_qm_dqreclaims); |
92b2e5b3 | 1530 | return; |
1da177e4 | 1531 | |
92b2e5b3 CH |
1532 | out_busy: |
1533 | xfs_dqunlock(dqp); | |
368e1361 | 1534 | |
92b2e5b3 CH |
1535 | /* |
1536 | * Move the dquot to the tail of the list so that we don't spin on it. | |
1537 | */ | |
f8739c3c | 1538 | list_move_tail(&dqp->q_lru, &qi->qi_lru_list); |
368e1361 | 1539 | |
92b2e5b3 | 1540 | trace_xfs_dqreclaim_busy(dqp); |
48776fd2 | 1541 | XFS_STATS_INC(xs_qm_dqreclaim_misses); |
368e1361 | 1542 | } |
1da177e4 | 1543 | |
1da177e4 | 1544 | STATIC int |
7f8275d0 | 1545 | xfs_qm_shake( |
92b2e5b3 CH |
1546 | struct shrinker *shrink, |
1547 | struct shrink_control *sc) | |
1da177e4 | 1548 | { |
f8739c3c CH |
1549 | struct xfs_quotainfo *qi = |
1550 | container_of(shrink, struct xfs_quotainfo, qi_shrinker); | |
92b2e5b3 CH |
1551 | int nr_to_scan = sc->nr_to_scan; |
1552 | LIST_HEAD (dispose_list); | |
1553 | struct xfs_dquot *dqp; | |
1da177e4 | 1554 | |
92b2e5b3 | 1555 | if ((sc->gfp_mask & (__GFP_FS|__GFP_WAIT)) != (__GFP_FS|__GFP_WAIT)) |
014c2544 | 1556 | return 0; |
92b2e5b3 CH |
1557 | if (!nr_to_scan) |
1558 | goto out; | |
1da177e4 | 1559 | |
f8739c3c CH |
1560 | mutex_lock(&qi->qi_lru_lock); |
1561 | while (!list_empty(&qi->qi_lru_list)) { | |
92b2e5b3 CH |
1562 | if (nr_to_scan-- <= 0) |
1563 | break; | |
f8739c3c CH |
1564 | dqp = list_first_entry(&qi->qi_lru_list, struct xfs_dquot, |
1565 | q_lru); | |
92b2e5b3 | 1566 | xfs_qm_dqreclaim_one(dqp, &dispose_list); |
1da177e4 | 1567 | } |
f8739c3c | 1568 | mutex_unlock(&qi->qi_lru_lock); |
1da177e4 | 1569 | |
92b2e5b3 | 1570 | while (!list_empty(&dispose_list)) { |
f8739c3c CH |
1571 | dqp = list_first_entry(&dispose_list, struct xfs_dquot, q_lru); |
1572 | list_del_init(&dqp->q_lru); | |
92b2e5b3 CH |
1573 | xfs_qm_dqfree_one(dqp); |
1574 | } | |
1575 | out: | |
f8739c3c | 1576 | return (qi->qi_lru_count / 100) * sysctl_vfs_cache_pressure; |
1da177e4 LT |
1577 | } |
1578 | ||
1da177e4 LT |
1579 | /* |
1580 | * Start a transaction and write the incore superblock changes to | |
1581 | * disk. flags parameter indicates which fields have changed. | |
1582 | */ | |
1583 | int | |
1584 | xfs_qm_write_sb_changes( | |
1585 | xfs_mount_t *mp, | |
1586 | __int64_t flags) | |
1587 | { | |
1588 | xfs_trans_t *tp; | |
1589 | int error; | |
1590 | ||
1da177e4 LT |
1591 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE); |
1592 | if ((error = xfs_trans_reserve(tp, 0, | |
1593 | mp->m_sb.sb_sectsize + 128, 0, | |
1594 | 0, | |
1595 | XFS_DEFAULT_LOG_COUNT))) { | |
1596 | xfs_trans_cancel(tp, 0); | |
014c2544 | 1597 | return error; |
1da177e4 LT |
1598 | } |
1599 | ||
1600 | xfs_mod_sb(tp, flags); | |
e5720eec | 1601 | error = xfs_trans_commit(tp, 0); |
1da177e4 | 1602 | |
e5720eec | 1603 | return error; |
1da177e4 LT |
1604 | } |
1605 | ||
1606 | ||
1607 | /* --------------- utility functions for vnodeops ---------------- */ | |
1608 | ||
1609 | ||
1610 | /* | |
6c77b0ea | 1611 | * Given an inode, a uid, gid and prid make sure that we have |
1da177e4 LT |
1612 | * allocated relevant dquot(s) on disk, and that we won't exceed inode |
1613 | * quotas by creating this file. | |
1614 | * This also attaches dquot(s) to the given inode after locking it, | |
1615 | * and returns the dquots corresponding to the uid and/or gid. | |
1616 | * | |
1617 | * in : inode (unlocked) | |
1618 | * out : udquot, gdquot with references taken and unlocked | |
1619 | */ | |
1620 | int | |
1621 | xfs_qm_vop_dqalloc( | |
7d095257 CH |
1622 | struct xfs_inode *ip, |
1623 | uid_t uid, | |
1624 | gid_t gid, | |
1625 | prid_t prid, | |
1626 | uint flags, | |
1627 | struct xfs_dquot **O_udqpp, | |
1628 | struct xfs_dquot **O_gdqpp) | |
1da177e4 | 1629 | { |
7d095257 CH |
1630 | struct xfs_mount *mp = ip->i_mount; |
1631 | struct xfs_dquot *uq, *gq; | |
1632 | int error; | |
1633 | uint lockflags; | |
1da177e4 | 1634 | |
7d095257 | 1635 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
1da177e4 LT |
1636 | return 0; |
1637 | ||
1638 | lockflags = XFS_ILOCK_EXCL; | |
1639 | xfs_ilock(ip, lockflags); | |
1640 | ||
bd186aa9 | 1641 | if ((flags & XFS_QMOPT_INHERIT) && XFS_INHERIT_GID(ip)) |
1da177e4 LT |
1642 | gid = ip->i_d.di_gid; |
1643 | ||
1644 | /* | |
1645 | * Attach the dquot(s) to this inode, doing a dquot allocation | |
1646 | * if necessary. The dquot(s) will not be locked. | |
1647 | */ | |
1648 | if (XFS_NOT_DQATTACHED(mp, ip)) { | |
7d095257 CH |
1649 | error = xfs_qm_dqattach_locked(ip, XFS_QMOPT_DQALLOC); |
1650 | if (error) { | |
1da177e4 | 1651 | xfs_iunlock(ip, lockflags); |
014c2544 | 1652 | return error; |
1da177e4 LT |
1653 | } |
1654 | } | |
1655 | ||
1656 | uq = gq = NULL; | |
c8ad20ff | 1657 | if ((flags & XFS_QMOPT_UQUOTA) && XFS_IS_UQUOTA_ON(mp)) { |
1da177e4 LT |
1658 | if (ip->i_d.di_uid != uid) { |
1659 | /* | |
1660 | * What we need is the dquot that has this uid, and | |
1661 | * if we send the inode to dqget, the uid of the inode | |
1662 | * takes priority over what's sent in the uid argument. | |
1663 | * We must unlock inode here before calling dqget if | |
1664 | * we're not sending the inode, because otherwise | |
1665 | * we'll deadlock by doing trans_reserve while | |
1666 | * holding ilock. | |
1667 | */ | |
1668 | xfs_iunlock(ip, lockflags); | |
1669 | if ((error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t) uid, | |
1670 | XFS_DQ_USER, | |
1671 | XFS_QMOPT_DQALLOC | | |
1672 | XFS_QMOPT_DOWARN, | |
1673 | &uq))) { | |
1674 | ASSERT(error != ENOENT); | |
014c2544 | 1675 | return error; |
1da177e4 LT |
1676 | } |
1677 | /* | |
1678 | * Get the ilock in the right order. | |
1679 | */ | |
1680 | xfs_dqunlock(uq); | |
1681 | lockflags = XFS_ILOCK_SHARED; | |
1682 | xfs_ilock(ip, lockflags); | |
1683 | } else { | |
1684 | /* | |
1685 | * Take an extra reference, because we'll return | |
1686 | * this to caller | |
1687 | */ | |
1688 | ASSERT(ip->i_udquot); | |
78e55892 | 1689 | uq = xfs_qm_dqhold(ip->i_udquot); |
1da177e4 LT |
1690 | } |
1691 | } | |
c8ad20ff | 1692 | if ((flags & XFS_QMOPT_GQUOTA) && XFS_IS_GQUOTA_ON(mp)) { |
1da177e4 LT |
1693 | if (ip->i_d.di_gid != gid) { |
1694 | xfs_iunlock(ip, lockflags); | |
1695 | if ((error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t)gid, | |
1696 | XFS_DQ_GROUP, | |
1697 | XFS_QMOPT_DQALLOC | | |
1698 | XFS_QMOPT_DOWARN, | |
1699 | &gq))) { | |
1700 | if (uq) | |
1701 | xfs_qm_dqrele(uq); | |
1702 | ASSERT(error != ENOENT); | |
014c2544 | 1703 | return error; |
1da177e4 LT |
1704 | } |
1705 | xfs_dqunlock(gq); | |
1706 | lockflags = XFS_ILOCK_SHARED; | |
1707 | xfs_ilock(ip, lockflags); | |
1708 | } else { | |
1709 | ASSERT(ip->i_gdquot); | |
78e55892 | 1710 | gq = xfs_qm_dqhold(ip->i_gdquot); |
1da177e4 | 1711 | } |
c8ad20ff | 1712 | } else if ((flags & XFS_QMOPT_PQUOTA) && XFS_IS_PQUOTA_ON(mp)) { |
6743099c | 1713 | if (xfs_get_projid(ip) != prid) { |
c8ad20ff NS |
1714 | xfs_iunlock(ip, lockflags); |
1715 | if ((error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t)prid, | |
1716 | XFS_DQ_PROJ, | |
1717 | XFS_QMOPT_DQALLOC | | |
1718 | XFS_QMOPT_DOWARN, | |
1719 | &gq))) { | |
1720 | if (uq) | |
1721 | xfs_qm_dqrele(uq); | |
1722 | ASSERT(error != ENOENT); | |
1723 | return (error); | |
1724 | } | |
1725 | xfs_dqunlock(gq); | |
1726 | lockflags = XFS_ILOCK_SHARED; | |
1727 | xfs_ilock(ip, lockflags); | |
1728 | } else { | |
1729 | ASSERT(ip->i_gdquot); | |
78e55892 | 1730 | gq = xfs_qm_dqhold(ip->i_gdquot); |
c8ad20ff | 1731 | } |
1da177e4 LT |
1732 | } |
1733 | if (uq) | |
0b1b213f | 1734 | trace_xfs_dquot_dqalloc(ip); |
1da177e4 LT |
1735 | |
1736 | xfs_iunlock(ip, lockflags); | |
1737 | if (O_udqpp) | |
1738 | *O_udqpp = uq; | |
1739 | else if (uq) | |
1740 | xfs_qm_dqrele(uq); | |
1741 | if (O_gdqpp) | |
1742 | *O_gdqpp = gq; | |
1743 | else if (gq) | |
1744 | xfs_qm_dqrele(gq); | |
014c2544 | 1745 | return 0; |
1da177e4 LT |
1746 | } |
1747 | ||
1748 | /* | |
1749 | * Actually transfer ownership, and do dquot modifications. | |
1750 | * These were already reserved. | |
1751 | */ | |
1752 | xfs_dquot_t * | |
1753 | xfs_qm_vop_chown( | |
1754 | xfs_trans_t *tp, | |
1755 | xfs_inode_t *ip, | |
1756 | xfs_dquot_t **IO_olddq, | |
1757 | xfs_dquot_t *newdq) | |
1758 | { | |
1759 | xfs_dquot_t *prevdq; | |
06d10dd9 NS |
1760 | uint bfield = XFS_IS_REALTIME_INODE(ip) ? |
1761 | XFS_TRANS_DQ_RTBCOUNT : XFS_TRANS_DQ_BCOUNT; | |
1762 | ||
7d095257 | 1763 | |
579aa9ca | 1764 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
1765 | ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount)); |
1766 | ||
1767 | /* old dquot */ | |
1768 | prevdq = *IO_olddq; | |
1769 | ASSERT(prevdq); | |
1770 | ASSERT(prevdq != newdq); | |
1771 | ||
06d10dd9 NS |
1772 | xfs_trans_mod_dquot(tp, prevdq, bfield, -(ip->i_d.di_nblocks)); |
1773 | xfs_trans_mod_dquot(tp, prevdq, XFS_TRANS_DQ_ICOUNT, -1); | |
1da177e4 LT |
1774 | |
1775 | /* the sparkling new dquot */ | |
06d10dd9 NS |
1776 | xfs_trans_mod_dquot(tp, newdq, bfield, ip->i_d.di_nblocks); |
1777 | xfs_trans_mod_dquot(tp, newdq, XFS_TRANS_DQ_ICOUNT, 1); | |
1da177e4 LT |
1778 | |
1779 | /* | |
78e55892 CH |
1780 | * Take an extra reference, because the inode is going to keep |
1781 | * this dquot pointer even after the trans_commit. | |
1da177e4 | 1782 | */ |
78e55892 | 1783 | *IO_olddq = xfs_qm_dqhold(newdq); |
1da177e4 | 1784 | |
014c2544 | 1785 | return prevdq; |
1da177e4 LT |
1786 | } |
1787 | ||
1788 | /* | |
c8ad20ff | 1789 | * Quota reservations for setattr(AT_UID|AT_GID|AT_PROJID). |
1da177e4 LT |
1790 | */ |
1791 | int | |
1792 | xfs_qm_vop_chown_reserve( | |
1793 | xfs_trans_t *tp, | |
1794 | xfs_inode_t *ip, | |
1795 | xfs_dquot_t *udqp, | |
1796 | xfs_dquot_t *gdqp, | |
1797 | uint flags) | |
1798 | { | |
7d095257 | 1799 | xfs_mount_t *mp = ip->i_mount; |
9a2a7de2 | 1800 | uint delblks, blkflags, prjflags = 0; |
1da177e4 | 1801 | xfs_dquot_t *unresudq, *unresgdq, *delblksudq, *delblksgdq; |
7d095257 CH |
1802 | int error; |
1803 | ||
1da177e4 | 1804 | |
579aa9ca | 1805 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED)); |
1da177e4 LT |
1806 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1807 | ||
1808 | delblks = ip->i_delayed_blks; | |
1809 | delblksudq = delblksgdq = unresudq = unresgdq = NULL; | |
06d10dd9 NS |
1810 | blkflags = XFS_IS_REALTIME_INODE(ip) ? |
1811 | XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS; | |
1da177e4 LT |
1812 | |
1813 | if (XFS_IS_UQUOTA_ON(mp) && udqp && | |
1149d96a | 1814 | ip->i_d.di_uid != (uid_t)be32_to_cpu(udqp->q_core.d_id)) { |
1da177e4 LT |
1815 | delblksudq = udqp; |
1816 | /* | |
1817 | * If there are delayed allocation blocks, then we have to | |
1818 | * unreserve those from the old dquot, and add them to the | |
1819 | * new dquot. | |
1820 | */ | |
1821 | if (delblks) { | |
1822 | ASSERT(ip->i_udquot); | |
1823 | unresudq = ip->i_udquot; | |
1824 | } | |
1825 | } | |
c8ad20ff | 1826 | if (XFS_IS_OQUOTA_ON(ip->i_mount) && gdqp) { |
9a2a7de2 | 1827 | if (XFS_IS_PQUOTA_ON(ip->i_mount) && |
6743099c | 1828 | xfs_get_projid(ip) != be32_to_cpu(gdqp->q_core.d_id)) |
9a2a7de2 NS |
1829 | prjflags = XFS_QMOPT_ENOSPC; |
1830 | ||
1831 | if (prjflags || | |
1832 | (XFS_IS_GQUOTA_ON(ip->i_mount) && | |
1833 | ip->i_d.di_gid != be32_to_cpu(gdqp->q_core.d_id))) { | |
c8ad20ff NS |
1834 | delblksgdq = gdqp; |
1835 | if (delblks) { | |
1836 | ASSERT(ip->i_gdquot); | |
1837 | unresgdq = ip->i_gdquot; | |
1838 | } | |
1da177e4 LT |
1839 | } |
1840 | } | |
1841 | ||
1842 | if ((error = xfs_trans_reserve_quota_bydquots(tp, ip->i_mount, | |
1843 | delblksudq, delblksgdq, ip->i_d.di_nblocks, 1, | |
9a2a7de2 | 1844 | flags | blkflags | prjflags))) |
1da177e4 LT |
1845 | return (error); |
1846 | ||
1847 | /* | |
1848 | * Do the delayed blks reservations/unreservations now. Since, these | |
1849 | * are done without the help of a transaction, if a reservation fails | |
1850 | * its previous reservations won't be automatically undone by trans | |
1851 | * code. So, we have to do it manually here. | |
1852 | */ | |
1853 | if (delblks) { | |
1854 | /* | |
1855 | * Do the reservations first. Unreservation can't fail. | |
1856 | */ | |
1857 | ASSERT(delblksudq || delblksgdq); | |
1858 | ASSERT(unresudq || unresgdq); | |
1859 | if ((error = xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, | |
1860 | delblksudq, delblksgdq, (xfs_qcnt_t)delblks, 0, | |
9a2a7de2 | 1861 | flags | blkflags | prjflags))) |
1da177e4 LT |
1862 | return (error); |
1863 | xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, | |
1864 | unresudq, unresgdq, -((xfs_qcnt_t)delblks), 0, | |
06d10dd9 | 1865 | blkflags); |
1da177e4 LT |
1866 | } |
1867 | ||
1868 | return (0); | |
1869 | } | |
1870 | ||
1871 | int | |
1872 | xfs_qm_vop_rename_dqattach( | |
7d095257 | 1873 | struct xfs_inode **i_tab) |
1da177e4 | 1874 | { |
7d095257 CH |
1875 | struct xfs_mount *mp = i_tab[0]->i_mount; |
1876 | int i; | |
1da177e4 | 1877 | |
7d095257 | 1878 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
014c2544 | 1879 | return 0; |
1da177e4 | 1880 | |
7d095257 CH |
1881 | for (i = 0; (i < 4 && i_tab[i]); i++) { |
1882 | struct xfs_inode *ip = i_tab[i]; | |
1883 | int error; | |
1884 | ||
1da177e4 LT |
1885 | /* |
1886 | * Watch out for duplicate entries in the table. | |
1887 | */ | |
7d095257 CH |
1888 | if (i == 0 || ip != i_tab[i-1]) { |
1889 | if (XFS_NOT_DQATTACHED(mp, ip)) { | |
1da177e4 LT |
1890 | error = xfs_qm_dqattach(ip, 0); |
1891 | if (error) | |
014c2544 | 1892 | return error; |
1da177e4 LT |
1893 | } |
1894 | } | |
1895 | } | |
014c2544 | 1896 | return 0; |
1da177e4 LT |
1897 | } |
1898 | ||
1899 | void | |
7d095257 CH |
1900 | xfs_qm_vop_create_dqattach( |
1901 | struct xfs_trans *tp, | |
1902 | struct xfs_inode *ip, | |
1903 | struct xfs_dquot *udqp, | |
1904 | struct xfs_dquot *gdqp) | |
1da177e4 | 1905 | { |
7d095257 CH |
1906 | struct xfs_mount *mp = tp->t_mountp; |
1907 | ||
1908 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) | |
1da177e4 LT |
1909 | return; |
1910 | ||
579aa9ca | 1911 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
7d095257 | 1912 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1da177e4 LT |
1913 | |
1914 | if (udqp) { | |
1da177e4 | 1915 | ASSERT(ip->i_udquot == NULL); |
7d095257 | 1916 | ASSERT(XFS_IS_UQUOTA_ON(mp)); |
1149d96a | 1917 | ASSERT(ip->i_d.di_uid == be32_to_cpu(udqp->q_core.d_id)); |
78e55892 CH |
1918 | |
1919 | ip->i_udquot = xfs_qm_dqhold(udqp); | |
1da177e4 LT |
1920 | xfs_trans_mod_dquot(tp, udqp, XFS_TRANS_DQ_ICOUNT, 1); |
1921 | } | |
1922 | if (gdqp) { | |
1da177e4 | 1923 | ASSERT(ip->i_gdquot == NULL); |
7d095257 CH |
1924 | ASSERT(XFS_IS_OQUOTA_ON(mp)); |
1925 | ASSERT((XFS_IS_GQUOTA_ON(mp) ? | |
6743099c | 1926 | ip->i_d.di_gid : xfs_get_projid(ip)) == |
ee2a4f7c | 1927 | be32_to_cpu(gdqp->q_core.d_id)); |
78e55892 CH |
1928 | |
1929 | ip->i_gdquot = xfs_qm_dqhold(gdqp); | |
1da177e4 LT |
1930 | xfs_trans_mod_dquot(tp, gdqp, XFS_TRANS_DQ_ICOUNT, 1); |
1931 | } | |
1932 | } | |
1933 |