Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
4ce3121f NS |
2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
4ce3121f NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
4ce3121f NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
1da177e4 | 13 | * |
4ce3121f NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
1da177e4 | 17 | */ |
1da177e4 LT |
18 | #include "xfs.h" |
19 | #include "xfs_fs.h" | |
a4fbe6ab | 20 | #include "xfs_shared.h" |
6ca1c906 | 21 | #include "xfs_format.h" |
239880ef | 22 | #include "xfs_log_format.h" |
239880ef | 23 | #include "xfs_trans_resv.h" |
a844f451 | 24 | #include "xfs_bit.h" |
1da177e4 LT |
25 | #include "xfs_sb.h" |
26 | #include "xfs_ag.h" | |
1da177e4 | 27 | #include "xfs_mount.h" |
1da177e4 | 28 | #include "xfs_inode.h" |
a844f451 NS |
29 | #include "xfs_ialloc.h" |
30 | #include "xfs_itable.h" | |
239880ef | 31 | #include "xfs_quota.h" |
1da177e4 | 32 | #include "xfs_error.h" |
a844f451 | 33 | #include "xfs_bmap.h" |
a4fbe6ab | 34 | #include "xfs_bmap_btree.h" |
239880ef | 35 | #include "xfs_trans.h" |
1da177e4 | 36 | #include "xfs_trans_space.h" |
1da177e4 | 37 | #include "xfs_qm.h" |
0b1b213f | 38 | #include "xfs_trace.h" |
33479e05 | 39 | #include "xfs_icache.h" |
6fcdc59d | 40 | #include "xfs_cksum.h" |
a4fbe6ab | 41 | #include "xfs_dinode.h" |
1da177e4 LT |
42 | |
43 | /* | |
44 | * The global quota manager. There is only one of these for the entire | |
45 | * system, _not_ one per file system. XQM keeps track of the overall | |
46 | * quota functionality, including maintaining the freelist and hash | |
47 | * tables of dquots. | |
48 | */ | |
1da177e4 | 49 | STATIC int xfs_qm_init_quotainos(xfs_mount_t *); |
ba0f32d4 | 50 | STATIC int xfs_qm_init_quotainfo(xfs_mount_t *); |
1da177e4 | 51 | |
cd56a39a DC |
52 | |
53 | STATIC void xfs_qm_dqfree_one(struct xfs_dquot *dqp); | |
b84a3a96 CH |
54 | /* |
55 | * We use the batch lookup interface to iterate over the dquots as it | |
56 | * currently is the only interface into the radix tree code that allows | |
57 | * fuzzy lookups instead of exact matches. Holding the lock over multiple | |
58 | * operations is fine as all callers are used either during mount/umount | |
59 | * or quotaoff. | |
60 | */ | |
61 | #define XFS_DQ_LOOKUP_BATCH 32 | |
62 | ||
63 | STATIC int | |
64 | xfs_qm_dquot_walk( | |
65 | struct xfs_mount *mp, | |
66 | int type, | |
43ff2122 CH |
67 | int (*execute)(struct xfs_dquot *dqp, void *data), |
68 | void *data) | |
b84a3a96 CH |
69 | { |
70 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
329e0875 | 71 | struct radix_tree_root *tree = xfs_dquot_tree(qi, type); |
b84a3a96 CH |
72 | uint32_t next_index; |
73 | int last_error = 0; | |
74 | int skipped; | |
75 | int nr_found; | |
76 | ||
77 | restart: | |
78 | skipped = 0; | |
79 | next_index = 0; | |
80 | nr_found = 0; | |
81 | ||
82 | while (1) { | |
83 | struct xfs_dquot *batch[XFS_DQ_LOOKUP_BATCH]; | |
84 | int error = 0; | |
85 | int i; | |
86 | ||
87 | mutex_lock(&qi->qi_tree_lock); | |
88 | nr_found = radix_tree_gang_lookup(tree, (void **)batch, | |
89 | next_index, XFS_DQ_LOOKUP_BATCH); | |
90 | if (!nr_found) { | |
91 | mutex_unlock(&qi->qi_tree_lock); | |
92 | break; | |
93 | } | |
94 | ||
95 | for (i = 0; i < nr_found; i++) { | |
96 | struct xfs_dquot *dqp = batch[i]; | |
97 | ||
98 | next_index = be32_to_cpu(dqp->q_core.d_id) + 1; | |
99 | ||
43ff2122 | 100 | error = execute(batch[i], data); |
b84a3a96 CH |
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( | |
43ff2122 CH |
132 | struct xfs_dquot *dqp, |
133 | void *data) | |
b84a3a96 CH |
134 | { |
135 | struct xfs_mount *mp = dqp->q_mount; | |
136 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
b84a3a96 CH |
137 | |
138 | xfs_dqlock(dqp); | |
139 | if ((dqp->dq_flags & XFS_DQ_FREEING) || dqp->q_nrefs != 0) { | |
140 | xfs_dqunlock(dqp); | |
141 | return EAGAIN; | |
142 | } | |
143 | ||
b84a3a96 CH |
144 | dqp->dq_flags |= XFS_DQ_FREEING; |
145 | ||
43ff2122 | 146 | xfs_dqflock(dqp); |
b84a3a96 CH |
147 | |
148 | /* | |
149 | * If we are turning this type of quotas off, we don't care | |
150 | * about the dirty metadata sitting in this dquot. OTOH, if | |
151 | * we're unmounting, we do care, so we flush it and wait. | |
152 | */ | |
153 | if (XFS_DQ_IS_DIRTY(dqp)) { | |
fe7257fd CH |
154 | struct xfs_buf *bp = NULL; |
155 | int error; | |
b84a3a96 CH |
156 | |
157 | /* | |
158 | * We don't care about getting disk errors here. We need | |
159 | * to purge this dquot anyway, so we go ahead regardless. | |
160 | */ | |
fe7257fd CH |
161 | error = xfs_qm_dqflush(dqp, &bp); |
162 | if (error) { | |
b84a3a96 CH |
163 | xfs_warn(mp, "%s: dquot %p flush failed", |
164 | __func__, dqp); | |
fe7257fd CH |
165 | } else { |
166 | error = xfs_bwrite(bp); | |
167 | xfs_buf_relse(bp); | |
168 | } | |
b84a3a96 CH |
169 | xfs_dqflock(dqp); |
170 | } | |
171 | ||
172 | ASSERT(atomic_read(&dqp->q_pincount) == 0); | |
173 | ASSERT(XFS_FORCED_SHUTDOWN(mp) || | |
174 | !(dqp->q_logitem.qli_item.li_flags & XFS_LI_IN_AIL)); | |
175 | ||
176 | xfs_dqfunlock(dqp); | |
177 | xfs_dqunlock(dqp); | |
178 | ||
329e0875 | 179 | radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags), |
b84a3a96 CH |
180 | be32_to_cpu(dqp->q_core.d_id)); |
181 | qi->qi_dquots--; | |
182 | ||
183 | /* | |
184 | * We move dquots to the freelist as soon as their reference count | |
185 | * hits zero, so it really should be on the freelist here. | |
186 | */ | |
b84a3a96 | 187 | ASSERT(!list_empty(&dqp->q_lru)); |
cd56a39a | 188 | list_lru_del(&qi->qi_lru, &dqp->q_lru); |
b84a3a96 | 189 | XFS_STATS_DEC(xs_qm_dquot_unused); |
b84a3a96 CH |
190 | |
191 | xfs_qm_dqdestroy(dqp); | |
df8052e7 JL |
192 | return 0; |
193 | } | |
194 | ||
b84a3a96 CH |
195 | /* |
196 | * Purge the dquot cache. | |
197 | */ | |
198 | void | |
199 | xfs_qm_dqpurge_all( | |
200 | struct xfs_mount *mp, | |
201 | uint flags) | |
202 | { | |
3c353375 DC |
203 | if (flags & XFS_QMOPT_UQUOTA) |
204 | xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_dqpurge, NULL); | |
b84a3a96 | 205 | if (flags & XFS_QMOPT_GQUOTA) |
43ff2122 | 206 | xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_dqpurge, NULL); |
b84a3a96 | 207 | if (flags & XFS_QMOPT_PQUOTA) |
43ff2122 | 208 | xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_dqpurge, NULL); |
b84a3a96 CH |
209 | } |
210 | ||
1da177e4 LT |
211 | /* |
212 | * Just destroy the quotainfo structure. | |
213 | */ | |
214 | void | |
7d095257 CH |
215 | xfs_qm_unmount( |
216 | struct xfs_mount *mp) | |
1da177e4 | 217 | { |
7d095257 | 218 | if (mp->m_quotainfo) { |
8112e9dc | 219 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
1da177e4 | 220 | xfs_qm_destroy_quotainfo(mp); |
7d095257 | 221 | } |
1da177e4 LT |
222 | } |
223 | ||
224 | ||
225 | /* | |
226 | * This is called from xfs_mountfs to start quotas and initialize all | |
227 | * necessary data structures like quotainfo. This is also responsible for | |
228 | * running a quotacheck as necessary. We are guaranteed that the superblock | |
229 | * is consistently read in at this point. | |
53aa7915 DC |
230 | * |
231 | * If we fail here, the mount will continue with quota turned off. We don't | |
232 | * need to inidicate success or failure at all. | |
1da177e4 | 233 | */ |
53aa7915 | 234 | void |
1da177e4 | 235 | xfs_qm_mount_quotas( |
4249023a | 236 | xfs_mount_t *mp) |
1da177e4 | 237 | { |
1da177e4 LT |
238 | int error = 0; |
239 | uint sbf; | |
240 | ||
1da177e4 LT |
241 | /* |
242 | * If quotas on realtime volumes is not supported, we disable | |
243 | * quotas immediately. | |
244 | */ | |
245 | if (mp->m_sb.sb_rextents) { | |
0b932ccc | 246 | xfs_notice(mp, "Cannot turn on quotas for realtime filesystem"); |
1da177e4 LT |
247 | mp->m_qflags = 0; |
248 | goto write_changes; | |
249 | } | |
250 | ||
1da177e4 | 251 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
155ffd07 | 252 | |
1da177e4 LT |
253 | /* |
254 | * Allocate the quotainfo structure inside the mount struct, and | |
255 | * create quotainode(s), and change/rev superblock if necessary. | |
256 | */ | |
53aa7915 DC |
257 | error = xfs_qm_init_quotainfo(mp); |
258 | if (error) { | |
1da177e4 LT |
259 | /* |
260 | * We must turn off quotas. | |
261 | */ | |
262 | ASSERT(mp->m_quotainfo == NULL); | |
263 | mp->m_qflags = 0; | |
264 | goto write_changes; | |
265 | } | |
266 | /* | |
267 | * If any of the quotas are not consistent, do a quotacheck. | |
268 | */ | |
4249023a | 269 | if (XFS_QM_NEED_QUOTACHECK(mp)) { |
53aa7915 DC |
270 | error = xfs_qm_quotacheck(mp); |
271 | if (error) { | |
272 | /* Quotacheck failed and disabled quotas. */ | |
273 | return; | |
1da177e4 | 274 | } |
1da177e4 | 275 | } |
646d5bda DD |
276 | /* |
277 | * If one type of quotas is off, then it will lose its | |
278 | * quotachecked status, since we won't be doing accounting for | |
279 | * that type anymore. | |
280 | */ | |
53aa7915 | 281 | if (!XFS_IS_UQUOTA_ON(mp)) |
646d5bda | 282 | mp->m_qflags &= ~XFS_UQUOTA_CHKD; |
83e782e1 CS |
283 | if (!XFS_IS_GQUOTA_ON(mp)) |
284 | mp->m_qflags &= ~XFS_GQUOTA_CHKD; | |
285 | if (!XFS_IS_PQUOTA_ON(mp)) | |
286 | mp->m_qflags &= ~XFS_PQUOTA_CHKD; | |
155ffd07 | 287 | |
1da177e4 LT |
288 | write_changes: |
289 | /* | |
3685c2a1 | 290 | * We actually don't have to acquire the m_sb_lock at all. |
1da177e4 LT |
291 | * This can only be called from mount, and that's single threaded. XXX |
292 | */ | |
3685c2a1 | 293 | spin_lock(&mp->m_sb_lock); |
1da177e4 LT |
294 | sbf = mp->m_sb.sb_qflags; |
295 | mp->m_sb.sb_qflags = mp->m_qflags & XFS_MOUNT_QUOTA_ALL; | |
3685c2a1 | 296 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
297 | |
298 | if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) { | |
299 | if (xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS)) { | |
300 | /* | |
301 | * We could only have been turning quotas off. | |
302 | * We aren't in very good shape actually because | |
303 | * the incore structures are convinced that quotas are | |
304 | * off, but the on disk superblock doesn't know that ! | |
305 | */ | |
306 | ASSERT(!(XFS_IS_QUOTA_RUNNING(mp))); | |
53487786 DC |
307 | xfs_alert(mp, "%s: Superblock update failed!", |
308 | __func__); | |
1da177e4 LT |
309 | } |
310 | } | |
311 | ||
312 | if (error) { | |
53487786 | 313 | xfs_warn(mp, "Failed to initialize disk quotas."); |
7d095257 | 314 | return; |
1da177e4 | 315 | } |
1da177e4 LT |
316 | } |
317 | ||
318 | /* | |
319 | * Called from the vfsops layer. | |
320 | */ | |
e57481dc | 321 | void |
1da177e4 LT |
322 | xfs_qm_unmount_quotas( |
323 | xfs_mount_t *mp) | |
324 | { | |
1da177e4 LT |
325 | /* |
326 | * Release the dquots that root inode, et al might be holding, | |
327 | * before we flush quotas and blow away the quotainfo structure. | |
328 | */ | |
329 | ASSERT(mp->m_rootip); | |
330 | xfs_qm_dqdetach(mp->m_rootip); | |
331 | if (mp->m_rbmip) | |
332 | xfs_qm_dqdetach(mp->m_rbmip); | |
333 | if (mp->m_rsumip) | |
334 | xfs_qm_dqdetach(mp->m_rsumip); | |
335 | ||
336 | /* | |
e57481dc | 337 | * Release the quota inodes. |
1da177e4 | 338 | */ |
1da177e4 | 339 | if (mp->m_quotainfo) { |
e57481dc CH |
340 | if (mp->m_quotainfo->qi_uquotaip) { |
341 | IRELE(mp->m_quotainfo->qi_uquotaip); | |
342 | mp->m_quotainfo->qi_uquotaip = NULL; | |
1da177e4 | 343 | } |
e57481dc CH |
344 | if (mp->m_quotainfo->qi_gquotaip) { |
345 | IRELE(mp->m_quotainfo->qi_gquotaip); | |
346 | mp->m_quotainfo->qi_gquotaip = NULL; | |
1da177e4 | 347 | } |
92f8ff73 CS |
348 | if (mp->m_quotainfo->qi_pquotaip) { |
349 | IRELE(mp->m_quotainfo->qi_pquotaip); | |
350 | mp->m_quotainfo->qi_pquotaip = NULL; | |
351 | } | |
1da177e4 | 352 | } |
1da177e4 LT |
353 | } |
354 | ||
1da177e4 LT |
355 | STATIC int |
356 | xfs_qm_dqattach_one( | |
357 | xfs_inode_t *ip, | |
358 | xfs_dqid_t id, | |
359 | uint type, | |
360 | uint doalloc, | |
1da177e4 LT |
361 | xfs_dquot_t **IO_idqpp) |
362 | { | |
363 | xfs_dquot_t *dqp; | |
364 | int error; | |
365 | ||
579aa9ca | 366 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 367 | error = 0; |
8e9b6e7f | 368 | |
1da177e4 | 369 | /* |
3c353375 DC |
370 | * See if we already have it in the inode itself. IO_idqpp is &i_udquot |
371 | * or &i_gdquot. This made the code look weird, but made the logic a lot | |
372 | * simpler. | |
1da177e4 | 373 | */ |
8e9b6e7f CH |
374 | dqp = *IO_idqpp; |
375 | if (dqp) { | |
0b1b213f | 376 | trace_xfs_dqattach_found(dqp); |
8e9b6e7f | 377 | return 0; |
1da177e4 LT |
378 | } |
379 | ||
380 | /* | |
3c353375 DC |
381 | * Find the dquot from somewhere. This bumps the reference count of |
382 | * dquot and returns it locked. This can return ENOENT if dquot didn't | |
383 | * exist on disk and we didn't ask it to allocate; ESRCH if quotas got | |
384 | * turned off suddenly. | |
1da177e4 | 385 | */ |
db3e74b5 MH |
386 | error = xfs_qm_dqget(ip->i_mount, ip, id, type, |
387 | doalloc | XFS_QMOPT_DOWARN, &dqp); | |
8e9b6e7f CH |
388 | if (error) |
389 | return error; | |
1da177e4 | 390 | |
0b1b213f | 391 | trace_xfs_dqattach_get(dqp); |
8e9b6e7f | 392 | |
1da177e4 LT |
393 | /* |
394 | * dqget may have dropped and re-acquired the ilock, but it guarantees | |
395 | * that the dquot returned is the one that should go in the inode. | |
396 | */ | |
397 | *IO_idqpp = dqp; | |
8e9b6e7f CH |
398 | xfs_dqunlock(dqp); |
399 | return 0; | |
1da177e4 LT |
400 | } |
401 | ||
b4d05e30 CH |
402 | static bool |
403 | xfs_qm_need_dqattach( | |
404 | struct xfs_inode *ip) | |
405 | { | |
406 | struct xfs_mount *mp = ip->i_mount; | |
407 | ||
408 | if (!XFS_IS_QUOTA_RUNNING(mp)) | |
409 | return false; | |
410 | if (!XFS_IS_QUOTA_ON(mp)) | |
411 | return false; | |
412 | if (!XFS_NOT_DQATTACHED(mp, ip)) | |
413 | return false; | |
9cad19d2 | 414 | if (xfs_is_quota_inode(&mp->m_sb, ip->i_ino)) |
b4d05e30 CH |
415 | return false; |
416 | return true; | |
417 | } | |
1da177e4 LT |
418 | |
419 | /* | |
c8ad20ff NS |
420 | * Given a locked inode, attach dquot(s) to it, taking U/G/P-QUOTAON |
421 | * into account. | |
1da177e4 | 422 | * If XFS_QMOPT_DQALLOC, the dquot(s) will be allocated if needed. |
1da177e4 LT |
423 | * Inode may get unlocked and relocked in here, and the caller must deal with |
424 | * the consequences. | |
425 | */ | |
426 | int | |
7d095257 | 427 | xfs_qm_dqattach_locked( |
1da177e4 LT |
428 | xfs_inode_t *ip, |
429 | uint flags) | |
430 | { | |
431 | xfs_mount_t *mp = ip->i_mount; | |
1da177e4 LT |
432 | int error = 0; |
433 | ||
b4d05e30 | 434 | if (!xfs_qm_need_dqattach(ip)) |
014c2544 | 435 | return 0; |
1da177e4 | 436 | |
7d095257 | 437 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 438 | |
3c353375 | 439 | if (XFS_IS_UQUOTA_ON(mp) && !ip->i_udquot) { |
1da177e4 LT |
440 | error = xfs_qm_dqattach_one(ip, ip->i_d.di_uid, XFS_DQ_USER, |
441 | flags & XFS_QMOPT_DQALLOC, | |
3c353375 | 442 | &ip->i_udquot); |
1da177e4 LT |
443 | if (error) |
444 | goto done; | |
3c353375 | 445 | ASSERT(ip->i_udquot); |
1da177e4 | 446 | } |
579aa9ca | 447 | |
3c353375 | 448 | if (XFS_IS_GQUOTA_ON(mp) && !ip->i_gdquot) { |
92f8ff73 | 449 | error = xfs_qm_dqattach_one(ip, ip->i_d.di_gid, XFS_DQ_GROUP, |
1da177e4 | 450 | flags & XFS_QMOPT_DQALLOC, |
3c353375 | 451 | &ip->i_gdquot); |
1da177e4 LT |
452 | if (error) |
453 | goto done; | |
3c353375 | 454 | ASSERT(ip->i_gdquot); |
1da177e4 LT |
455 | } |
456 | ||
3c353375 | 457 | if (XFS_IS_PQUOTA_ON(mp) && !ip->i_pdquot) { |
92f8ff73 CS |
458 | error = xfs_qm_dqattach_one(ip, xfs_get_projid(ip), XFS_DQ_PROJ, |
459 | flags & XFS_QMOPT_DQALLOC, | |
3c353375 | 460 | &ip->i_pdquot); |
92f8ff73 CS |
461 | if (error) |
462 | goto done; | |
3c353375 | 463 | ASSERT(ip->i_pdquot); |
92f8ff73 CS |
464 | } |
465 | ||
3c353375 | 466 | done: |
1da177e4 | 467 | /* |
3c353375 DC |
468 | * Don't worry about the dquots that we may have attached before any |
469 | * error - they'll get detached later if it has not already been done. | |
1da177e4 | 470 | */ |
7d095257 | 471 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
7d095257 CH |
472 | return error; |
473 | } | |
1da177e4 | 474 | |
7d095257 CH |
475 | int |
476 | xfs_qm_dqattach( | |
477 | struct xfs_inode *ip, | |
478 | uint flags) | |
479 | { | |
480 | int error; | |
481 | ||
b4d05e30 CH |
482 | if (!xfs_qm_need_dqattach(ip)) |
483 | return 0; | |
484 | ||
7d095257 CH |
485 | xfs_ilock(ip, XFS_ILOCK_EXCL); |
486 | error = xfs_qm_dqattach_locked(ip, flags); | |
487 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1da177e4 | 488 | |
014c2544 | 489 | return error; |
1da177e4 LT |
490 | } |
491 | ||
492 | /* | |
493 | * Release dquots (and their references) if any. | |
494 | * The inode should be locked EXCL except when this's called by | |
495 | * xfs_ireclaim. | |
496 | */ | |
497 | void | |
498 | xfs_qm_dqdetach( | |
499 | xfs_inode_t *ip) | |
500 | { | |
92f8ff73 | 501 | if (!(ip->i_udquot || ip->i_gdquot || ip->i_pdquot)) |
1da177e4 LT |
502 | return; |
503 | ||
0b1b213f CH |
504 | trace_xfs_dquot_dqdetach(ip); |
505 | ||
9cad19d2 | 506 | ASSERT(!xfs_is_quota_inode(&ip->i_mount->m_sb, ip->i_ino)); |
1da177e4 LT |
507 | if (ip->i_udquot) { |
508 | xfs_qm_dqrele(ip->i_udquot); | |
509 | ip->i_udquot = NULL; | |
510 | } | |
511 | if (ip->i_gdquot) { | |
512 | xfs_qm_dqrele(ip->i_gdquot); | |
513 | ip->i_gdquot = NULL; | |
514 | } | |
92f8ff73 CS |
515 | if (ip->i_pdquot) { |
516 | xfs_qm_dqrele(ip->i_pdquot); | |
517 | ip->i_pdquot = NULL; | |
518 | } | |
1da177e4 LT |
519 | } |
520 | ||
cd56a39a DC |
521 | struct xfs_qm_isolate { |
522 | struct list_head buffers; | |
523 | struct list_head dispose; | |
524 | }; | |
525 | ||
526 | static enum lru_status | |
527 | xfs_qm_dquot_isolate( | |
528 | struct list_head *item, | |
529 | spinlock_t *lru_lock, | |
530 | void *arg) | |
531 | { | |
532 | struct xfs_dquot *dqp = container_of(item, | |
533 | struct xfs_dquot, q_lru); | |
534 | struct xfs_qm_isolate *isol = arg; | |
535 | ||
536 | if (!xfs_dqlock_nowait(dqp)) | |
537 | goto out_miss_busy; | |
538 | ||
539 | /* | |
540 | * This dquot has acquired a reference in the meantime remove it from | |
541 | * the freelist and try again. | |
542 | */ | |
543 | if (dqp->q_nrefs) { | |
544 | xfs_dqunlock(dqp); | |
545 | XFS_STATS_INC(xs_qm_dqwants); | |
546 | ||
547 | trace_xfs_dqreclaim_want(dqp); | |
548 | list_del_init(&dqp->q_lru); | |
549 | XFS_STATS_DEC(xs_qm_dquot_unused); | |
35163417 | 550 | return LRU_REMOVED; |
cd56a39a DC |
551 | } |
552 | ||
553 | /* | |
554 | * If the dquot is dirty, flush it. If it's already being flushed, just | |
555 | * skip it so there is time for the IO to complete before we try to | |
556 | * reclaim it again on the next LRU pass. | |
557 | */ | |
558 | if (!xfs_dqflock_nowait(dqp)) { | |
559 | xfs_dqunlock(dqp); | |
560 | goto out_miss_busy; | |
561 | } | |
562 | ||
563 | if (XFS_DQ_IS_DIRTY(dqp)) { | |
564 | struct xfs_buf *bp = NULL; | |
565 | int error; | |
566 | ||
567 | trace_xfs_dqreclaim_dirty(dqp); | |
568 | ||
569 | /* we have to drop the LRU lock to flush the dquot */ | |
570 | spin_unlock(lru_lock); | |
571 | ||
572 | error = xfs_qm_dqflush(dqp, &bp); | |
573 | if (error) { | |
574 | xfs_warn(dqp->q_mount, "%s: dquot %p flush failed", | |
575 | __func__, dqp); | |
576 | goto out_unlock_dirty; | |
577 | } | |
578 | ||
579 | xfs_buf_delwri_queue(bp, &isol->buffers); | |
580 | xfs_buf_relse(bp); | |
581 | goto out_unlock_dirty; | |
582 | } | |
583 | xfs_dqfunlock(dqp); | |
584 | ||
585 | /* | |
586 | * Prevent lookups now that we are past the point of no return. | |
587 | */ | |
588 | dqp->dq_flags |= XFS_DQ_FREEING; | |
589 | xfs_dqunlock(dqp); | |
590 | ||
591 | ASSERT(dqp->q_nrefs == 0); | |
592 | list_move_tail(&dqp->q_lru, &isol->dispose); | |
593 | XFS_STATS_DEC(xs_qm_dquot_unused); | |
594 | trace_xfs_dqreclaim_done(dqp); | |
595 | XFS_STATS_INC(xs_qm_dqreclaims); | |
35163417 | 596 | return LRU_REMOVED; |
cd56a39a DC |
597 | |
598 | out_miss_busy: | |
599 | trace_xfs_dqreclaim_busy(dqp); | |
600 | XFS_STATS_INC(xs_qm_dqreclaim_misses); | |
35163417 | 601 | return LRU_SKIP; |
cd56a39a DC |
602 | |
603 | out_unlock_dirty: | |
604 | trace_xfs_dqreclaim_busy(dqp); | |
605 | XFS_STATS_INC(xs_qm_dqreclaim_misses); | |
35163417 DC |
606 | xfs_dqunlock(dqp); |
607 | spin_lock(lru_lock); | |
608 | return LRU_RETRY; | |
cd56a39a DC |
609 | } |
610 | ||
2f5b56f8 | 611 | static unsigned long |
cd56a39a DC |
612 | xfs_qm_shrink_scan( |
613 | struct shrinker *shrink, | |
614 | struct shrink_control *sc) | |
615 | { | |
616 | struct xfs_quotainfo *qi = container_of(shrink, | |
617 | struct xfs_quotainfo, qi_shrinker); | |
618 | struct xfs_qm_isolate isol; | |
2f5b56f8 | 619 | unsigned long freed; |
cd56a39a DC |
620 | int error; |
621 | unsigned long nr_to_scan = sc->nr_to_scan; | |
622 | ||
623 | if ((sc->gfp_mask & (__GFP_FS|__GFP_WAIT)) != (__GFP_FS|__GFP_WAIT)) | |
624 | return 0; | |
625 | ||
626 | INIT_LIST_HEAD(&isol.buffers); | |
627 | INIT_LIST_HEAD(&isol.dispose); | |
628 | ||
629 | freed = list_lru_walk_node(&qi->qi_lru, sc->nid, xfs_qm_dquot_isolate, &isol, | |
630 | &nr_to_scan); | |
631 | ||
632 | error = xfs_buf_delwri_submit(&isol.buffers); | |
633 | if (error) | |
634 | xfs_warn(NULL, "%s: dquot reclaim failed", __func__); | |
635 | ||
636 | while (!list_empty(&isol.dispose)) { | |
637 | struct xfs_dquot *dqp; | |
638 | ||
639 | dqp = list_first_entry(&isol.dispose, struct xfs_dquot, q_lru); | |
640 | list_del_init(&dqp->q_lru); | |
641 | xfs_qm_dqfree_one(dqp); | |
642 | } | |
643 | ||
644 | return freed; | |
645 | } | |
646 | ||
2f5b56f8 | 647 | static unsigned long |
cd56a39a DC |
648 | xfs_qm_shrink_count( |
649 | struct shrinker *shrink, | |
650 | struct shrink_control *sc) | |
651 | { | |
652 | struct xfs_quotainfo *qi = container_of(shrink, | |
653 | struct xfs_quotainfo, qi_shrinker); | |
654 | ||
655 | return list_lru_count_node(&qi->qi_lru, sc->nid); | |
656 | } | |
657 | ||
1da177e4 LT |
658 | /* |
659 | * This initializes all the quota information that's kept in the | |
660 | * mount structure | |
661 | */ | |
ba0f32d4 | 662 | STATIC int |
1da177e4 LT |
663 | xfs_qm_init_quotainfo( |
664 | xfs_mount_t *mp) | |
665 | { | |
666 | xfs_quotainfo_t *qinf; | |
667 | int error; | |
668 | xfs_dquot_t *dqp; | |
669 | ||
670 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
671 | ||
1da177e4 LT |
672 | qinf = mp->m_quotainfo = kmem_zalloc(sizeof(xfs_quotainfo_t), KM_SLEEP); |
673 | ||
5ca302c8 GC |
674 | if ((error = list_lru_init(&qinf->qi_lru))) { |
675 | kmem_free(qinf); | |
676 | mp->m_quotainfo = NULL; | |
677 | return error; | |
678 | } | |
679 | ||
1da177e4 LT |
680 | /* |
681 | * See if quotainodes are setup, and if not, allocate them, | |
682 | * and change the superblock accordingly. | |
683 | */ | |
684 | if ((error = xfs_qm_init_quotainos(mp))) { | |
5ca302c8 | 685 | list_lru_destroy(&qinf->qi_lru); |
f0e2d93c | 686 | kmem_free(qinf); |
1da177e4 | 687 | mp->m_quotainfo = NULL; |
014c2544 | 688 | return error; |
1da177e4 LT |
689 | } |
690 | ||
9f920f11 CH |
691 | INIT_RADIX_TREE(&qinf->qi_uquota_tree, GFP_NOFS); |
692 | INIT_RADIX_TREE(&qinf->qi_gquota_tree, GFP_NOFS); | |
92f8ff73 | 693 | INIT_RADIX_TREE(&qinf->qi_pquota_tree, GFP_NOFS); |
9f920f11 CH |
694 | mutex_init(&qinf->qi_tree_lock); |
695 | ||
1da177e4 | 696 | /* mutex used to serialize quotaoffs */ |
794ee1ba | 697 | mutex_init(&qinf->qi_quotaofflock); |
1da177e4 LT |
698 | |
699 | /* Precalc some constants */ | |
700 | qinf->qi_dqchunklen = XFS_FSB_TO_BB(mp, XFS_DQUOT_CLUSTER_SIZE_FSB); | |
9aede1d8 | 701 | qinf->qi_dqperchunk = xfs_calc_dquots_per_chunk(mp, |
3fe58f30 | 702 | qinf->qi_dqchunklen); |
1da177e4 LT |
703 | |
704 | mp->m_qflags |= (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_CHKD); | |
705 | ||
706 | /* | |
707 | * We try to get the limits from the superuser's limits fields. | |
708 | * This is quite hacky, but it is standard quota practice. | |
7ae44407 | 709 | * |
1da177e4 LT |
710 | * We look at the USR dquot with id == 0 first, but if user quotas |
711 | * are not enabled we goto the GRP dquot with id == 0. | |
712 | * We don't really care to keep separate default limits for user | |
713 | * and group quotas, at least not at this point. | |
7ae44407 CH |
714 | * |
715 | * Since we may not have done a quotacheck by this point, just read | |
716 | * the dquot without attaching it to any hashtables or lists. | |
1da177e4 | 717 | */ |
7ae44407 CH |
718 | error = xfs_qm_dqread(mp, 0, |
719 | XFS_IS_UQUOTA_RUNNING(mp) ? XFS_DQ_USER : | |
720 | (XFS_IS_GQUOTA_RUNNING(mp) ? XFS_DQ_GROUP : | |
721 | XFS_DQ_PROJ), | |
722 | XFS_QMOPT_DOWARN, &dqp); | |
723 | if (!error) { | |
1da177e4 LT |
724 | xfs_disk_dquot_t *ddqp = &dqp->q_core; |
725 | ||
726 | /* | |
727 | * The warnings and timers set the grace period given to | |
728 | * a user or group before he or she can not perform any | |
729 | * more writing. If it is zero, a default is used. | |
730 | */ | |
1149d96a CH |
731 | qinf->qi_btimelimit = ddqp->d_btimer ? |
732 | be32_to_cpu(ddqp->d_btimer) : XFS_QM_BTIMELIMIT; | |
733 | qinf->qi_itimelimit = ddqp->d_itimer ? | |
734 | be32_to_cpu(ddqp->d_itimer) : XFS_QM_ITIMELIMIT; | |
735 | qinf->qi_rtbtimelimit = ddqp->d_rtbtimer ? | |
736 | be32_to_cpu(ddqp->d_rtbtimer) : XFS_QM_RTBTIMELIMIT; | |
737 | qinf->qi_bwarnlimit = ddqp->d_bwarns ? | |
738 | be16_to_cpu(ddqp->d_bwarns) : XFS_QM_BWARNLIMIT; | |
739 | qinf->qi_iwarnlimit = ddqp->d_iwarns ? | |
740 | be16_to_cpu(ddqp->d_iwarns) : XFS_QM_IWARNLIMIT; | |
741 | qinf->qi_rtbwarnlimit = ddqp->d_rtbwarns ? | |
742 | be16_to_cpu(ddqp->d_rtbwarns) : XFS_QM_RTBWARNLIMIT; | |
743 | qinf->qi_bhardlimit = be64_to_cpu(ddqp->d_blk_hardlimit); | |
744 | qinf->qi_bsoftlimit = be64_to_cpu(ddqp->d_blk_softlimit); | |
745 | qinf->qi_ihardlimit = be64_to_cpu(ddqp->d_ino_hardlimit); | |
746 | qinf->qi_isoftlimit = be64_to_cpu(ddqp->d_ino_softlimit); | |
747 | qinf->qi_rtbhardlimit = be64_to_cpu(ddqp->d_rtb_hardlimit); | |
748 | qinf->qi_rtbsoftlimit = be64_to_cpu(ddqp->d_rtb_softlimit); | |
1da177e4 | 749 | |
1da177e4 LT |
750 | xfs_qm_dqdestroy(dqp); |
751 | } else { | |
752 | qinf->qi_btimelimit = XFS_QM_BTIMELIMIT; | |
753 | qinf->qi_itimelimit = XFS_QM_ITIMELIMIT; | |
754 | qinf->qi_rtbtimelimit = XFS_QM_RTBTIMELIMIT; | |
755 | qinf->qi_bwarnlimit = XFS_QM_BWARNLIMIT; | |
756 | qinf->qi_iwarnlimit = XFS_QM_IWARNLIMIT; | |
06d10dd9 | 757 | qinf->qi_rtbwarnlimit = XFS_QM_RTBWARNLIMIT; |
1da177e4 LT |
758 | } |
759 | ||
cd56a39a DC |
760 | qinf->qi_shrinker.count_objects = xfs_qm_shrink_count; |
761 | qinf->qi_shrinker.scan_objects = xfs_qm_shrink_scan; | |
f8739c3c | 762 | qinf->qi_shrinker.seeks = DEFAULT_SEEKS; |
cd56a39a | 763 | qinf->qi_shrinker.flags = SHRINKER_NUMA_AWARE; |
f8739c3c | 764 | register_shrinker(&qinf->qi_shrinker); |
014c2544 | 765 | return 0; |
1da177e4 LT |
766 | } |
767 | ||
768 | ||
769 | /* | |
770 | * Gets called when unmounting a filesystem or when all quotas get | |
771 | * turned off. | |
772 | * This purges the quota inodes, destroys locks and frees itself. | |
773 | */ | |
774 | void | |
775 | xfs_qm_destroy_quotainfo( | |
776 | xfs_mount_t *mp) | |
777 | { | |
778 | xfs_quotainfo_t *qi; | |
779 | ||
780 | qi = mp->m_quotainfo; | |
781 | ASSERT(qi != NULL); | |
1da177e4 | 782 | |
f8739c3c | 783 | unregister_shrinker(&qi->qi_shrinker); |
f5e1dd34 | 784 | list_lru_destroy(&qi->qi_lru); |
f8739c3c | 785 | |
1da177e4 | 786 | if (qi->qi_uquotaip) { |
26cc0021 | 787 | IRELE(qi->qi_uquotaip); |
1da177e4 LT |
788 | qi->qi_uquotaip = NULL; /* paranoia */ |
789 | } | |
790 | if (qi->qi_gquotaip) { | |
26cc0021 | 791 | IRELE(qi->qi_gquotaip); |
1da177e4 LT |
792 | qi->qi_gquotaip = NULL; |
793 | } | |
92f8ff73 CS |
794 | if (qi->qi_pquotaip) { |
795 | IRELE(qi->qi_pquotaip); | |
796 | qi->qi_pquotaip = NULL; | |
797 | } | |
1da177e4 | 798 | mutex_destroy(&qi->qi_quotaofflock); |
f0e2d93c | 799 | kmem_free(qi); |
1da177e4 LT |
800 | mp->m_quotainfo = NULL; |
801 | } | |
802 | ||
1da177e4 LT |
803 | /* |
804 | * Create an inode and return with a reference already taken, but unlocked | |
805 | * This is how we create quota inodes | |
806 | */ | |
807 | STATIC int | |
808 | xfs_qm_qino_alloc( | |
809 | xfs_mount_t *mp, | |
810 | xfs_inode_t **ip, | |
811 | __int64_t sbfields, | |
812 | uint flags) | |
813 | { | |
814 | xfs_trans_t *tp; | |
815 | int error; | |
1da177e4 LT |
816 | int committed; |
817 | ||
d892d586 CS |
818 | *ip = NULL; |
819 | /* | |
820 | * With superblock that doesn't have separate pquotino, we | |
821 | * share an inode between gquota and pquota. If the on-disk | |
822 | * superblock has GQUOTA and the filesystem is now mounted | |
823 | * with PQUOTA, just use sb_gquotino for sb_pquotino and | |
824 | * vice-versa. | |
825 | */ | |
826 | if (!xfs_sb_version_has_pquotino(&mp->m_sb) && | |
827 | (flags & (XFS_QMOPT_PQUOTA|XFS_QMOPT_GQUOTA))) { | |
828 | xfs_ino_t ino = NULLFSINO; | |
829 | ||
830 | if ((flags & XFS_QMOPT_PQUOTA) && | |
831 | (mp->m_sb.sb_gquotino != NULLFSINO)) { | |
832 | ino = mp->m_sb.sb_gquotino; | |
833 | ASSERT(mp->m_sb.sb_pquotino == NULLFSINO); | |
834 | } else if ((flags & XFS_QMOPT_GQUOTA) && | |
835 | (mp->m_sb.sb_pquotino != NULLFSINO)) { | |
836 | ino = mp->m_sb.sb_pquotino; | |
837 | ASSERT(mp->m_sb.sb_gquotino == NULLFSINO); | |
838 | } | |
839 | if (ino != NULLFSINO) { | |
840 | error = xfs_iget(mp, NULL, ino, 0, 0, ip); | |
841 | if (error) | |
842 | return error; | |
843 | mp->m_sb.sb_gquotino = NULLFSINO; | |
844 | mp->m_sb.sb_pquotino = NULLFSINO; | |
845 | } | |
846 | } | |
847 | ||
061f7209 | 848 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QINOCREATE); |
3d3c8b52 JL |
849 | error = xfs_trans_reserve(tp, &M_RES(mp)->tr_create, |
850 | XFS_QM_QINOCREATE_SPACE_RES(mp), 0); | |
851 | if (error) { | |
1da177e4 | 852 | xfs_trans_cancel(tp, 0); |
014c2544 | 853 | return error; |
1da177e4 | 854 | } |
1da177e4 | 855 | |
d892d586 CS |
856 | if (!*ip) { |
857 | error = xfs_dir_ialloc(&tp, NULL, S_IFREG, 1, 0, 0, 1, ip, | |
858 | &committed); | |
859 | if (error) { | |
860 | xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | | |
861 | XFS_TRANS_ABORT); | |
862 | return error; | |
863 | } | |
1da177e4 LT |
864 | } |
865 | ||
1da177e4 LT |
866 | /* |
867 | * Make the changes in the superblock, and log those too. | |
868 | * sbfields arg may contain fields other than *QUOTINO; | |
869 | * VERSIONNUM for example. | |
870 | */ | |
3685c2a1 | 871 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 872 | if (flags & XFS_QMOPT_SBVERSION) { |
62118709 | 873 | ASSERT(!xfs_sb_version_hasquota(&mp->m_sb)); |
1da177e4 | 874 | ASSERT((sbfields & (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | |
d892d586 CS |
875 | XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | XFS_SB_QFLAGS)) == |
876 | (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | | |
877 | XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | | |
878 | XFS_SB_QFLAGS)); | |
1da177e4 | 879 | |
62118709 | 880 | xfs_sb_version_addquota(&mp->m_sb); |
1da177e4 LT |
881 | mp->m_sb.sb_uquotino = NULLFSINO; |
882 | mp->m_sb.sb_gquotino = NULLFSINO; | |
d892d586 | 883 | mp->m_sb.sb_pquotino = NULLFSINO; |
1da177e4 | 884 | |
d892d586 CS |
885 | /* qflags will get updated fully _after_ quotacheck */ |
886 | mp->m_sb.sb_qflags = mp->m_qflags & XFS_ALL_QUOTA_ACCT; | |
1da177e4 LT |
887 | } |
888 | if (flags & XFS_QMOPT_UQUOTA) | |
889 | mp->m_sb.sb_uquotino = (*ip)->i_ino; | |
d892d586 | 890 | else if (flags & XFS_QMOPT_GQUOTA) |
1da177e4 | 891 | mp->m_sb.sb_gquotino = (*ip)->i_ino; |
d892d586 CS |
892 | else |
893 | mp->m_sb.sb_pquotino = (*ip)->i_ino; | |
3685c2a1 | 894 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
895 | xfs_mod_sb(tp, sbfields); |
896 | ||
1c72bf90 | 897 | if ((error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES))) { |
53487786 | 898 | xfs_alert(mp, "%s failed (error %d)!", __func__, error); |
014c2544 | 899 | return error; |
1da177e4 | 900 | } |
014c2544 | 901 | return 0; |
1da177e4 LT |
902 | } |
903 | ||
904 | ||
5b139738 | 905 | STATIC void |
1da177e4 LT |
906 | xfs_qm_reset_dqcounts( |
907 | xfs_mount_t *mp, | |
908 | xfs_buf_t *bp, | |
909 | xfs_dqid_t id, | |
910 | uint type) | |
911 | { | |
6fcdc59d | 912 | struct xfs_dqblk *dqb; |
1da177e4 LT |
913 | int j; |
914 | ||
0b1b213f CH |
915 | trace_xfs_reset_dqcounts(bp, _RET_IP_); |
916 | ||
1da177e4 LT |
917 | /* |
918 | * Reset all counters and timers. They'll be | |
919 | * started afresh by xfs_qm_quotacheck. | |
920 | */ | |
921 | #ifdef DEBUG | |
922 | j = XFS_FSB_TO_B(mp, XFS_DQUOT_CLUSTER_SIZE_FSB); | |
923 | do_div(j, sizeof(xfs_dqblk_t)); | |
8a7b8a89 | 924 | ASSERT(mp->m_quotainfo->qi_dqperchunk == j); |
1da177e4 | 925 | #endif |
6fcdc59d | 926 | dqb = bp->b_addr; |
8a7b8a89 | 927 | for (j = 0; j < mp->m_quotainfo->qi_dqperchunk; j++) { |
6fcdc59d DC |
928 | struct xfs_disk_dquot *ddq; |
929 | ||
930 | ddq = (struct xfs_disk_dquot *)&dqb[j]; | |
931 | ||
1da177e4 LT |
932 | /* |
933 | * Do a sanity check, and if needed, repair the dqblk. Don't | |
934 | * output any warnings because it's perfectly possible to | |
9aede1d8 | 935 | * find uninitialised dquot blks. See comment in xfs_dqcheck. |
1da177e4 | 936 | */ |
9aede1d8 DC |
937 | xfs_dqcheck(mp, ddq, id+j, type, XFS_QMOPT_DQREPAIR, |
938 | "xfs_quotacheck"); | |
1149d96a CH |
939 | ddq->d_bcount = 0; |
940 | ddq->d_icount = 0; | |
941 | ddq->d_rtbcount = 0; | |
942 | ddq->d_btimer = 0; | |
943 | ddq->d_itimer = 0; | |
944 | ddq->d_rtbtimer = 0; | |
945 | ddq->d_bwarns = 0; | |
946 | ddq->d_iwarns = 0; | |
947 | ddq->d_rtbwarns = 0; | |
6fcdc59d DC |
948 | |
949 | if (xfs_sb_version_hascrc(&mp->m_sb)) { | |
950 | xfs_update_cksum((char *)&dqb[j], | |
951 | sizeof(struct xfs_dqblk), | |
952 | XFS_DQUOT_CRC_OFF); | |
953 | } | |
1da177e4 | 954 | } |
1da177e4 LT |
955 | } |
956 | ||
957 | STATIC int | |
958 | xfs_qm_dqiter_bufs( | |
43ff2122 CH |
959 | struct xfs_mount *mp, |
960 | xfs_dqid_t firstid, | |
961 | xfs_fsblock_t bno, | |
962 | xfs_filblks_t blkcnt, | |
963 | uint flags, | |
964 | struct list_head *buffer_list) | |
1da177e4 | 965 | { |
43ff2122 CH |
966 | struct xfs_buf *bp; |
967 | int error; | |
968 | int type; | |
1da177e4 LT |
969 | |
970 | ASSERT(blkcnt > 0); | |
c8ad20ff NS |
971 | type = flags & XFS_QMOPT_UQUOTA ? XFS_DQ_USER : |
972 | (flags & XFS_QMOPT_PQUOTA ? XFS_DQ_PROJ : XFS_DQ_GROUP); | |
1da177e4 LT |
973 | error = 0; |
974 | ||
975 | /* | |
976 | * Blkcnt arg can be a very big number, and might even be | |
977 | * larger than the log itself. So, we have to break it up into | |
978 | * manageable-sized transactions. | |
979 | * Note that we don't start a permanent transaction here; we might | |
980 | * not be able to get a log reservation for the whole thing up front, | |
981 | * and we don't really care to either, because we just discard | |
982 | * everything if we were to crash in the middle of this loop. | |
983 | */ | |
984 | while (blkcnt--) { | |
985 | error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, | |
986 | XFS_FSB_TO_DADDR(mp, bno), | |
c6319198 | 987 | mp->m_quotainfo->qi_dqchunklen, 0, &bp, |
1813dd64 | 988 | &xfs_dquot_buf_ops); |
1da177e4 | 989 | |
3fe58f30 | 990 | /* |
6fcdc59d DC |
991 | * CRC and validation errors will return a EFSCORRUPTED here. If |
992 | * this occurs, re-read without CRC validation so that we can | |
993 | * repair the damage via xfs_qm_reset_dqcounts(). This process | |
994 | * will leave a trace in the log indicating corruption has | |
995 | * been detected. | |
3fe58f30 | 996 | */ |
6fcdc59d DC |
997 | if (error == EFSCORRUPTED) { |
998 | error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, | |
999 | XFS_FSB_TO_DADDR(mp, bno), | |
1000 | mp->m_quotainfo->qi_dqchunklen, 0, &bp, | |
1001 | NULL); | |
1002 | } | |
1003 | ||
1004 | if (error) | |
1005 | break; | |
1006 | ||
5b139738 | 1007 | xfs_qm_reset_dqcounts(mp, bp, firstid, type); |
43ff2122 | 1008 | xfs_buf_delwri_queue(bp, buffer_list); |
61551f1e | 1009 | xfs_buf_relse(bp); |
6fcdc59d DC |
1010 | |
1011 | /* goto the next block. */ | |
1da177e4 | 1012 | bno++; |
8a7b8a89 | 1013 | firstid += mp->m_quotainfo->qi_dqperchunk; |
1da177e4 | 1014 | } |
43ff2122 | 1015 | |
014c2544 | 1016 | return error; |
1da177e4 LT |
1017 | } |
1018 | ||
1019 | /* | |
c8ad20ff | 1020 | * Iterate over all allocated USR/GRP/PRJ dquots in the system, calling a |
1da177e4 LT |
1021 | * caller supplied function for every chunk of dquots that we find. |
1022 | */ | |
1023 | STATIC int | |
1024 | xfs_qm_dqiterate( | |
43ff2122 CH |
1025 | struct xfs_mount *mp, |
1026 | struct xfs_inode *qip, | |
1027 | uint flags, | |
1028 | struct list_head *buffer_list) | |
1da177e4 | 1029 | { |
43ff2122 | 1030 | struct xfs_bmbt_irec *map; |
1da177e4 LT |
1031 | int i, nmaps; /* number of map entries */ |
1032 | int error; /* return value */ | |
1033 | xfs_fileoff_t lblkno; | |
1034 | xfs_filblks_t maxlblkcnt; | |
1035 | xfs_dqid_t firstid; | |
1036 | xfs_fsblock_t rablkno; | |
1037 | xfs_filblks_t rablkcnt; | |
1038 | ||
1039 | error = 0; | |
1040 | /* | |
c41564b5 | 1041 | * This looks racy, but we can't keep an inode lock across a |
1da177e4 LT |
1042 | * trans_reserve. But, this gets called during quotacheck, and that |
1043 | * happens only at mount time which is single threaded. | |
1044 | */ | |
1045 | if (qip->i_d.di_nblocks == 0) | |
014c2544 | 1046 | return 0; |
1da177e4 LT |
1047 | |
1048 | map = kmem_alloc(XFS_DQITER_MAP_SIZE * sizeof(*map), KM_SLEEP); | |
1049 | ||
1050 | lblkno = 0; | |
32972383 | 1051 | maxlblkcnt = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes); |
1da177e4 | 1052 | do { |
da51d32d CH |
1053 | uint lock_mode; |
1054 | ||
1da177e4 LT |
1055 | nmaps = XFS_DQITER_MAP_SIZE; |
1056 | /* | |
1057 | * We aren't changing the inode itself. Just changing | |
1058 | * some of its data. No new blocks are added here, and | |
1059 | * the inode is never added to the transaction. | |
1060 | */ | |
da51d32d | 1061 | lock_mode = xfs_ilock_data_map_shared(qip); |
5c8ed202 DC |
1062 | error = xfs_bmapi_read(qip, lblkno, maxlblkcnt - lblkno, |
1063 | map, &nmaps, 0); | |
da51d32d | 1064 | xfs_iunlock(qip, lock_mode); |
1da177e4 LT |
1065 | if (error) |
1066 | break; | |
1067 | ||
1068 | ASSERT(nmaps <= XFS_DQITER_MAP_SIZE); | |
1069 | for (i = 0; i < nmaps; i++) { | |
1070 | ASSERT(map[i].br_startblock != DELAYSTARTBLOCK); | |
1071 | ASSERT(map[i].br_blockcount); | |
1072 | ||
1073 | ||
1074 | lblkno += map[i].br_blockcount; | |
1075 | ||
1076 | if (map[i].br_startblock == HOLESTARTBLOCK) | |
1077 | continue; | |
1078 | ||
1079 | firstid = (xfs_dqid_t) map[i].br_startoff * | |
8a7b8a89 | 1080 | mp->m_quotainfo->qi_dqperchunk; |
1da177e4 LT |
1081 | /* |
1082 | * Do a read-ahead on the next extent. | |
1083 | */ | |
1084 | if ((i+1 < nmaps) && | |
1085 | (map[i+1].br_startblock != HOLESTARTBLOCK)) { | |
1086 | rablkcnt = map[i+1].br_blockcount; | |
1087 | rablkno = map[i+1].br_startblock; | |
1088 | while (rablkcnt--) { | |
1a1a3e97 | 1089 | xfs_buf_readahead(mp->m_ddev_targp, |
1da177e4 | 1090 | XFS_FSB_TO_DADDR(mp, rablkno), |
c3f8fc73 DC |
1091 | mp->m_quotainfo->qi_dqchunklen, |
1092 | NULL); | |
1da177e4 LT |
1093 | rablkno++; |
1094 | } | |
1095 | } | |
1096 | /* | |
1097 | * Iterate thru all the blks in the extent and | |
1098 | * reset the counters of all the dquots inside them. | |
1099 | */ | |
43ff2122 CH |
1100 | error = xfs_qm_dqiter_bufs(mp, firstid, |
1101 | map[i].br_startblock, | |
1102 | map[i].br_blockcount, | |
1103 | flags, buffer_list); | |
1104 | if (error) | |
1105 | goto out; | |
1da177e4 | 1106 | } |
1da177e4 LT |
1107 | } while (nmaps > 0); |
1108 | ||
43ff2122 | 1109 | out: |
f0e2d93c | 1110 | kmem_free(map); |
014c2544 | 1111 | return error; |
1da177e4 LT |
1112 | } |
1113 | ||
1114 | /* | |
1115 | * Called by dqusage_adjust in doing a quotacheck. | |
52fda114 CH |
1116 | * |
1117 | * Given the inode, and a dquot id this updates both the incore dqout as well | |
1118 | * as the buffer copy. This is so that once the quotacheck is done, we can | |
1119 | * just log all the buffers, as opposed to logging numerous updates to | |
1120 | * individual dquots. | |
1da177e4 | 1121 | */ |
52fda114 | 1122 | STATIC int |
1da177e4 | 1123 | xfs_qm_quotacheck_dqadjust( |
52fda114 CH |
1124 | struct xfs_inode *ip, |
1125 | xfs_dqid_t id, | |
1126 | uint type, | |
1da177e4 LT |
1127 | xfs_qcnt_t nblks, |
1128 | xfs_qcnt_t rtblks) | |
1129 | { | |
52fda114 CH |
1130 | struct xfs_mount *mp = ip->i_mount; |
1131 | struct xfs_dquot *dqp; | |
1132 | int error; | |
1133 | ||
1134 | error = xfs_qm_dqget(mp, ip, id, type, | |
1135 | XFS_QMOPT_DQALLOC | XFS_QMOPT_DOWARN, &dqp); | |
1136 | if (error) { | |
1137 | /* | |
1138 | * Shouldn't be able to turn off quotas here. | |
1139 | */ | |
1140 | ASSERT(error != ESRCH); | |
1141 | ASSERT(error != ENOENT); | |
1142 | return error; | |
1143 | } | |
0b1b213f CH |
1144 | |
1145 | trace_xfs_dqadjust(dqp); | |
1146 | ||
1da177e4 LT |
1147 | /* |
1148 | * Adjust the inode count and the block count to reflect this inode's | |
1149 | * resource usage. | |
1150 | */ | |
413d57c9 | 1151 | be64_add_cpu(&dqp->q_core.d_icount, 1); |
1da177e4 LT |
1152 | dqp->q_res_icount++; |
1153 | if (nblks) { | |
413d57c9 | 1154 | be64_add_cpu(&dqp->q_core.d_bcount, nblks); |
1da177e4 LT |
1155 | dqp->q_res_bcount += nblks; |
1156 | } | |
1157 | if (rtblks) { | |
413d57c9 | 1158 | be64_add_cpu(&dqp->q_core.d_rtbcount, rtblks); |
1da177e4 LT |
1159 | dqp->q_res_rtbcount += rtblks; |
1160 | } | |
1161 | ||
1162 | /* | |
1163 | * Set default limits, adjust timers (since we changed usages) | |
191f8488 CH |
1164 | * |
1165 | * There are no timers for the default values set in the root dquot. | |
1da177e4 | 1166 | */ |
191f8488 | 1167 | if (dqp->q_core.d_id) { |
4b6eae2e | 1168 | xfs_qm_adjust_dqlimits(mp, dqp); |
52fda114 | 1169 | xfs_qm_adjust_dqtimers(mp, &dqp->q_core); |
1da177e4 LT |
1170 | } |
1171 | ||
1172 | dqp->dq_flags |= XFS_DQ_DIRTY; | |
52fda114 CH |
1173 | xfs_qm_dqput(dqp); |
1174 | return 0; | |
1da177e4 LT |
1175 | } |
1176 | ||
1177 | STATIC int | |
1178 | xfs_qm_get_rtblks( | |
1179 | xfs_inode_t *ip, | |
1180 | xfs_qcnt_t *O_rtblks) | |
1181 | { | |
1182 | xfs_filblks_t rtblks; /* total rt blks */ | |
4eea22f0 | 1183 | xfs_extnum_t idx; /* extent record index */ |
1da177e4 LT |
1184 | xfs_ifork_t *ifp; /* inode fork pointer */ |
1185 | xfs_extnum_t nextents; /* number of extent entries */ | |
1da177e4 LT |
1186 | int error; |
1187 | ||
1188 | ASSERT(XFS_IS_REALTIME_INODE(ip)); | |
1189 | ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK); | |
1190 | if (!(ifp->if_flags & XFS_IFEXTENTS)) { | |
1191 | if ((error = xfs_iread_extents(NULL, ip, XFS_DATA_FORK))) | |
014c2544 | 1192 | return error; |
1da177e4 LT |
1193 | } |
1194 | rtblks = 0; | |
4eea22f0 | 1195 | nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t); |
a6f64d4a CH |
1196 | for (idx = 0; idx < nextents; idx++) |
1197 | rtblks += xfs_bmbt_get_blockcount(xfs_iext_get_ext(ifp, idx)); | |
1da177e4 | 1198 | *O_rtblks = (xfs_qcnt_t)rtblks; |
014c2544 | 1199 | return 0; |
1da177e4 LT |
1200 | } |
1201 | ||
1202 | /* | |
1203 | * callback routine supplied to bulkstat(). Given an inumber, find its | |
1204 | * dquots and update them to account for resources taken by that inode. | |
1205 | */ | |
1206 | /* ARGSUSED */ | |
1207 | STATIC int | |
1208 | xfs_qm_dqusage_adjust( | |
1209 | xfs_mount_t *mp, /* mount point for filesystem */ | |
1210 | xfs_ino_t ino, /* inode number to get data for */ | |
1211 | void __user *buffer, /* not used */ | |
1212 | int ubsize, /* not used */ | |
1da177e4 | 1213 | int *ubused, /* not used */ |
1da177e4 LT |
1214 | int *res) /* result code value */ |
1215 | { | |
1216 | xfs_inode_t *ip; | |
52fda114 | 1217 | xfs_qcnt_t nblks, rtblks = 0; |
1da177e4 LT |
1218 | int error; |
1219 | ||
1220 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
1221 | ||
1222 | /* | |
1223 | * rootino must have its resources accounted for, not so with the quota | |
1224 | * inodes. | |
1225 | */ | |
9cad19d2 | 1226 | if (xfs_is_quota_inode(&mp->m_sb, ino)) { |
1da177e4 LT |
1227 | *res = BULKSTAT_RV_NOTHING; |
1228 | return XFS_ERROR(EINVAL); | |
1229 | } | |
1230 | ||
1231 | /* | |
1232 | * We don't _need_ to take the ilock EXCL. However, the xfs_qm_dqget | |
1233 | * interface expects the inode to be exclusively locked because that's | |
1234 | * the case in all other instances. It's OK that we do this because | |
1235 | * quotacheck is done only at mount time. | |
1236 | */ | |
52fda114 CH |
1237 | error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_EXCL, &ip); |
1238 | if (error) { | |
1da177e4 | 1239 | *res = BULKSTAT_RV_NOTHING; |
014c2544 | 1240 | return error; |
1da177e4 LT |
1241 | } |
1242 | ||
52fda114 | 1243 | ASSERT(ip->i_delayed_blks == 0); |
1da177e4 | 1244 | |
52fda114 | 1245 | if (XFS_IS_REALTIME_INODE(ip)) { |
1da177e4 LT |
1246 | /* |
1247 | * Walk thru the extent list and count the realtime blocks. | |
1248 | */ | |
52fda114 CH |
1249 | error = xfs_qm_get_rtblks(ip, &rtblks); |
1250 | if (error) | |
1251 | goto error0; | |
1da177e4 | 1252 | } |
1da177e4 | 1253 | |
52fda114 | 1254 | nblks = (xfs_qcnt_t)ip->i_d.di_nblocks - rtblks; |
1da177e4 LT |
1255 | |
1256 | /* | |
1257 | * Add the (disk blocks and inode) resources occupied by this | |
1258 | * inode to its dquots. We do this adjustment in the incore dquot, | |
1259 | * and also copy the changes to its buffer. | |
1260 | * We don't care about putting these changes in a transaction | |
1261 | * envelope because if we crash in the middle of a 'quotacheck' | |
1262 | * we have to start from the beginning anyway. | |
1263 | * Once we're done, we'll log all the dquot bufs. | |
1264 | * | |
c41564b5 | 1265 | * The *QUOTA_ON checks below may look pretty racy, but quotachecks |
1da177e4 LT |
1266 | * and quotaoffs don't race. (Quotachecks happen at mount time only). |
1267 | */ | |
1268 | if (XFS_IS_UQUOTA_ON(mp)) { | |
52fda114 CH |
1269 | error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_uid, |
1270 | XFS_DQ_USER, nblks, rtblks); | |
1271 | if (error) | |
1272 | goto error0; | |
1da177e4 | 1273 | } |
52fda114 CH |
1274 | |
1275 | if (XFS_IS_GQUOTA_ON(mp)) { | |
1276 | error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_gid, | |
1277 | XFS_DQ_GROUP, nblks, rtblks); | |
1278 | if (error) | |
1279 | goto error0; | |
1da177e4 | 1280 | } |
1da177e4 | 1281 | |
52fda114 | 1282 | if (XFS_IS_PQUOTA_ON(mp)) { |
6743099c | 1283 | error = xfs_qm_quotacheck_dqadjust(ip, xfs_get_projid(ip), |
52fda114 CH |
1284 | XFS_DQ_PROJ, nblks, rtblks); |
1285 | if (error) | |
1286 | goto error0; | |
1287 | } | |
1288 | ||
1289 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1290 | IRELE(ip); | |
1da177e4 | 1291 | *res = BULKSTAT_RV_DIDONE; |
014c2544 | 1292 | return 0; |
52fda114 CH |
1293 | |
1294 | error0: | |
1295 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1296 | IRELE(ip); | |
1297 | *res = BULKSTAT_RV_GIVEUP; | |
1298 | return error; | |
1da177e4 LT |
1299 | } |
1300 | ||
b84a3a96 CH |
1301 | STATIC int |
1302 | xfs_qm_flush_one( | |
43ff2122 CH |
1303 | struct xfs_dquot *dqp, |
1304 | void *data) | |
b84a3a96 | 1305 | { |
43ff2122 | 1306 | struct list_head *buffer_list = data; |
fe7257fd | 1307 | struct xfs_buf *bp = NULL; |
b84a3a96 CH |
1308 | int error = 0; |
1309 | ||
1310 | xfs_dqlock(dqp); | |
1311 | if (dqp->dq_flags & XFS_DQ_FREEING) | |
1312 | goto out_unlock; | |
1313 | if (!XFS_DQ_IS_DIRTY(dqp)) | |
1314 | goto out_unlock; | |
1315 | ||
43ff2122 | 1316 | xfs_dqflock(dqp); |
fe7257fd CH |
1317 | error = xfs_qm_dqflush(dqp, &bp); |
1318 | if (error) | |
1319 | goto out_unlock; | |
b84a3a96 | 1320 | |
43ff2122 | 1321 | xfs_buf_delwri_queue(bp, buffer_list); |
fe7257fd | 1322 | xfs_buf_relse(bp); |
b84a3a96 CH |
1323 | out_unlock: |
1324 | xfs_dqunlock(dqp); | |
1325 | return error; | |
1326 | } | |
1327 | ||
1da177e4 LT |
1328 | /* |
1329 | * Walk thru all the filesystem inodes and construct a consistent view | |
1330 | * of the disk quota world. If the quotacheck fails, disable quotas. | |
1331 | */ | |
1332 | int | |
1333 | xfs_qm_quotacheck( | |
1334 | xfs_mount_t *mp) | |
1335 | { | |
113a5683 CS |
1336 | int done, count, error, error2; |
1337 | xfs_ino_t lastino; | |
1338 | size_t structsz; | |
1339 | uint flags; | |
1340 | LIST_HEAD (buffer_list); | |
1341 | struct xfs_inode *uip = mp->m_quotainfo->qi_uquotaip; | |
1342 | struct xfs_inode *gip = mp->m_quotainfo->qi_gquotaip; | |
92f8ff73 | 1343 | struct xfs_inode *pip = mp->m_quotainfo->qi_pquotaip; |
1da177e4 LT |
1344 | |
1345 | count = INT_MAX; | |
1346 | structsz = 1; | |
1347 | lastino = 0; | |
1348 | flags = 0; | |
1349 | ||
92f8ff73 | 1350 | ASSERT(uip || gip || pip); |
1da177e4 LT |
1351 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1352 | ||
0b932ccc | 1353 | xfs_notice(mp, "Quotacheck needed: Please wait."); |
1da177e4 LT |
1354 | |
1355 | /* | |
c8ad20ff | 1356 | * First we go thru all the dquots on disk, USR and GRP/PRJ, and reset |
1da177e4 LT |
1357 | * their counters to zero. We need a clean slate. |
1358 | * We don't log our changes till later. | |
1359 | */ | |
8a7b8a89 | 1360 | if (uip) { |
43ff2122 CH |
1361 | error = xfs_qm_dqiterate(mp, uip, XFS_QMOPT_UQUOTA, |
1362 | &buffer_list); | |
8a7b8a89 | 1363 | if (error) |
1da177e4 LT |
1364 | goto error_return; |
1365 | flags |= XFS_UQUOTA_CHKD; | |
1366 | } | |
1367 | ||
8a7b8a89 | 1368 | if (gip) { |
92f8ff73 | 1369 | error = xfs_qm_dqiterate(mp, gip, XFS_QMOPT_GQUOTA, |
43ff2122 | 1370 | &buffer_list); |
8a7b8a89 | 1371 | if (error) |
1da177e4 | 1372 | goto error_return; |
92f8ff73 CS |
1373 | flags |= XFS_GQUOTA_CHKD; |
1374 | } | |
1375 | ||
1376 | if (pip) { | |
1377 | error = xfs_qm_dqiterate(mp, pip, XFS_QMOPT_PQUOTA, | |
1378 | &buffer_list); | |
1379 | if (error) | |
1380 | goto error_return; | |
1381 | flags |= XFS_PQUOTA_CHKD; | |
1da177e4 LT |
1382 | } |
1383 | ||
1384 | do { | |
1385 | /* | |
1386 | * Iterate thru all the inodes in the file system, | |
1387 | * adjusting the corresponding dquot counters in core. | |
1388 | */ | |
7dce11db CH |
1389 | error = xfs_bulkstat(mp, &lastino, &count, |
1390 | xfs_qm_dqusage_adjust, | |
1391 | structsz, NULL, &done); | |
1392 | if (error) | |
1da177e4 LT |
1393 | break; |
1394 | ||
7dce11db | 1395 | } while (!done); |
1da177e4 | 1396 | |
4b8879df | 1397 | /* |
b84a3a96 CH |
1398 | * We've made all the changes that we need to make incore. Flush them |
1399 | * down to disk buffers if everything was updated successfully. | |
4b8879df | 1400 | */ |
43ff2122 CH |
1401 | if (XFS_IS_UQUOTA_ON(mp)) { |
1402 | error = xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_flush_one, | |
1403 | &buffer_list); | |
1404 | } | |
b84a3a96 | 1405 | if (XFS_IS_GQUOTA_ON(mp)) { |
43ff2122 CH |
1406 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_flush_one, |
1407 | &buffer_list); | |
b84a3a96 CH |
1408 | if (!error) |
1409 | error = error2; | |
1410 | } | |
1411 | if (XFS_IS_PQUOTA_ON(mp)) { | |
43ff2122 CH |
1412 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_flush_one, |
1413 | &buffer_list); | |
b84a3a96 CH |
1414 | if (!error) |
1415 | error = error2; | |
1416 | } | |
4b8879df | 1417 | |
43ff2122 CH |
1418 | error2 = xfs_buf_delwri_submit(&buffer_list); |
1419 | if (!error) | |
1420 | error = error2; | |
1421 | ||
1da177e4 LT |
1422 | /* |
1423 | * We can get this error if we couldn't do a dquot allocation inside | |
1424 | * xfs_qm_dqusage_adjust (via bulkstat). We don't care about the | |
1425 | * dirty dquots that might be cached, we just want to get rid of them | |
1426 | * and turn quotaoff. The dquots won't be attached to any of the inodes | |
1427 | * at this point (because we intentionally didn't in dqget_noattach). | |
1428 | */ | |
1429 | if (error) { | |
8112e9dc | 1430 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
1da177e4 LT |
1431 | goto error_return; |
1432 | } | |
1da177e4 | 1433 | |
1da177e4 LT |
1434 | /* |
1435 | * If one type of quotas is off, then it will lose its | |
1436 | * quotachecked status, since we won't be doing accounting for | |
1437 | * that type anymore. | |
1438 | */ | |
4177af3a | 1439 | mp->m_qflags &= ~XFS_ALL_QUOTA_CHKD; |
1da177e4 LT |
1440 | mp->m_qflags |= flags; |
1441 | ||
1da177e4 | 1442 | error_return: |
43ff2122 CH |
1443 | while (!list_empty(&buffer_list)) { |
1444 | struct xfs_buf *bp = | |
1445 | list_first_entry(&buffer_list, struct xfs_buf, b_list); | |
1446 | list_del_init(&bp->b_list); | |
1447 | xfs_buf_relse(bp); | |
1448 | } | |
1449 | ||
1da177e4 | 1450 | if (error) { |
0b932ccc DC |
1451 | xfs_warn(mp, |
1452 | "Quotacheck: Unsuccessful (Error %d): Disabling quotas.", | |
1453 | error); | |
1da177e4 LT |
1454 | /* |
1455 | * We must turn off quotas. | |
1456 | */ | |
1457 | ASSERT(mp->m_quotainfo != NULL); | |
1da177e4 | 1458 | xfs_qm_destroy_quotainfo(mp); |
31d5577b | 1459 | if (xfs_mount_reset_sbqflags(mp)) { |
0b932ccc DC |
1460 | xfs_warn(mp, |
1461 | "Quotacheck: Failed to reset quota flags."); | |
31d5577b | 1462 | } |
0b932ccc DC |
1463 | } else |
1464 | xfs_notice(mp, "Quotacheck: Done."); | |
1da177e4 LT |
1465 | return (error); |
1466 | } | |
1467 | ||
1468 | /* | |
1469 | * This is called after the superblock has been read in and we're ready to | |
1470 | * iget the quota inodes. | |
1471 | */ | |
1472 | STATIC int | |
1473 | xfs_qm_init_quotainos( | |
1474 | xfs_mount_t *mp) | |
1475 | { | |
113a5683 CS |
1476 | struct xfs_inode *uip = NULL; |
1477 | struct xfs_inode *gip = NULL; | |
92f8ff73 | 1478 | struct xfs_inode *pip = NULL; |
113a5683 CS |
1479 | int error; |
1480 | __int64_t sbflags = 0; | |
1481 | uint flags = 0; | |
1da177e4 LT |
1482 | |
1483 | ASSERT(mp->m_quotainfo); | |
1da177e4 LT |
1484 | |
1485 | /* | |
1486 | * Get the uquota and gquota inodes | |
1487 | */ | |
62118709 | 1488 | if (xfs_sb_version_hasquota(&mp->m_sb)) { |
1da177e4 LT |
1489 | if (XFS_IS_UQUOTA_ON(mp) && |
1490 | mp->m_sb.sb_uquotino != NULLFSINO) { | |
1491 | ASSERT(mp->m_sb.sb_uquotino > 0); | |
113a5683 CS |
1492 | error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, |
1493 | 0, 0, &uip); | |
1494 | if (error) | |
1da177e4 LT |
1495 | return XFS_ERROR(error); |
1496 | } | |
92f8ff73 | 1497 | if (XFS_IS_GQUOTA_ON(mp) && |
1da177e4 LT |
1498 | mp->m_sb.sb_gquotino != NULLFSINO) { |
1499 | ASSERT(mp->m_sb.sb_gquotino > 0); | |
113a5683 CS |
1500 | error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, |
1501 | 0, 0, &gip); | |
1502 | if (error) | |
1503 | goto error_rele; | |
1da177e4 | 1504 | } |
92f8ff73 | 1505 | if (XFS_IS_PQUOTA_ON(mp) && |
d892d586 CS |
1506 | mp->m_sb.sb_pquotino != NULLFSINO) { |
1507 | ASSERT(mp->m_sb.sb_pquotino > 0); | |
1508 | error = xfs_iget(mp, NULL, mp->m_sb.sb_pquotino, | |
92f8ff73 CS |
1509 | 0, 0, &pip); |
1510 | if (error) | |
1511 | goto error_rele; | |
1512 | } | |
1da177e4 LT |
1513 | } else { |
1514 | flags |= XFS_QMOPT_SBVERSION; | |
1515 | sbflags |= (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | | |
d892d586 CS |
1516 | XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | |
1517 | XFS_SB_QFLAGS); | |
1da177e4 LT |
1518 | } |
1519 | ||
1520 | /* | |
92f8ff73 | 1521 | * Create the three inodes, if they don't exist already. The changes |
1da177e4 LT |
1522 | * made above will get added to a transaction and logged in one of |
1523 | * the qino_alloc calls below. If the device is readonly, | |
1524 | * temporarily switch to read-write to do this. | |
1525 | */ | |
1526 | if (XFS_IS_UQUOTA_ON(mp) && uip == NULL) { | |
113a5683 | 1527 | error = xfs_qm_qino_alloc(mp, &uip, |
1da177e4 | 1528 | sbflags | XFS_SB_UQUOTINO, |
113a5683 CS |
1529 | flags | XFS_QMOPT_UQUOTA); |
1530 | if (error) | |
1531 | goto error_rele; | |
1da177e4 LT |
1532 | |
1533 | flags &= ~XFS_QMOPT_SBVERSION; | |
1534 | } | |
92f8ff73 | 1535 | if (XFS_IS_GQUOTA_ON(mp) && gip == NULL) { |
c8ad20ff | 1536 | error = xfs_qm_qino_alloc(mp, &gip, |
92f8ff73 CS |
1537 | sbflags | XFS_SB_GQUOTINO, |
1538 | flags | XFS_QMOPT_GQUOTA); | |
1539 | if (error) | |
1540 | goto error_rele; | |
1541 | ||
1542 | flags &= ~XFS_QMOPT_SBVERSION; | |
1543 | } | |
1544 | if (XFS_IS_PQUOTA_ON(mp) && pip == NULL) { | |
92f8ff73 | 1545 | error = xfs_qm_qino_alloc(mp, &pip, |
d892d586 | 1546 | sbflags | XFS_SB_PQUOTINO, |
92f8ff73 | 1547 | flags | XFS_QMOPT_PQUOTA); |
113a5683 CS |
1548 | if (error) |
1549 | goto error_rele; | |
1da177e4 LT |
1550 | } |
1551 | ||
8a7b8a89 CH |
1552 | mp->m_quotainfo->qi_uquotaip = uip; |
1553 | mp->m_quotainfo->qi_gquotaip = gip; | |
92f8ff73 | 1554 | mp->m_quotainfo->qi_pquotaip = pip; |
1da177e4 | 1555 | |
014c2544 | 1556 | return 0; |
113a5683 CS |
1557 | |
1558 | error_rele: | |
1559 | if (uip) | |
1560 | IRELE(uip); | |
1561 | if (gip) | |
1562 | IRELE(gip); | |
92f8ff73 CS |
1563 | if (pip) |
1564 | IRELE(pip); | |
113a5683 | 1565 | return XFS_ERROR(error); |
1da177e4 LT |
1566 | } |
1567 | ||
92b2e5b3 CH |
1568 | STATIC void |
1569 | xfs_qm_dqfree_one( | |
1570 | struct xfs_dquot *dqp) | |
1571 | { | |
1572 | struct xfs_mount *mp = dqp->q_mount; | |
1573 | struct xfs_quotainfo *qi = mp->m_quotainfo; | |
1da177e4 | 1574 | |
9f920f11 | 1575 | mutex_lock(&qi->qi_tree_lock); |
329e0875 | 1576 | radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags), |
9f920f11 | 1577 | be32_to_cpu(dqp->q_core.d_id)); |
368e1361 | 1578 | |
92b2e5b3 | 1579 | qi->qi_dquots--; |
b84a3a96 | 1580 | mutex_unlock(&qi->qi_tree_lock); |
92b2e5b3 CH |
1581 | |
1582 | xfs_qm_dqdestroy(dqp); | |
1583 | } | |
1584 | ||
1da177e4 LT |
1585 | /* |
1586 | * Start a transaction and write the incore superblock changes to | |
1587 | * disk. flags parameter indicates which fields have changed. | |
1588 | */ | |
1589 | int | |
1590 | xfs_qm_write_sb_changes( | |
1591 | xfs_mount_t *mp, | |
1592 | __int64_t flags) | |
1593 | { | |
1594 | xfs_trans_t *tp; | |
1595 | int error; | |
1596 | ||
1da177e4 | 1597 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE); |
3d3c8b52 | 1598 | error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_sbchange, 0, 0); |
f910a8c6 | 1599 | if (error) { |
1da177e4 | 1600 | xfs_trans_cancel(tp, 0); |
014c2544 | 1601 | return error; |
1da177e4 LT |
1602 | } |
1603 | ||
1604 | xfs_mod_sb(tp, flags); | |
e5720eec | 1605 | error = xfs_trans_commit(tp, 0); |
1da177e4 | 1606 | |
e5720eec | 1607 | return error; |
1da177e4 LT |
1608 | } |
1609 | ||
1610 | ||
1611 | /* --------------- utility functions for vnodeops ---------------- */ | |
1612 | ||
1613 | ||
1614 | /* | |
6c77b0ea | 1615 | * Given an inode, a uid, gid and prid make sure that we have |
1da177e4 LT |
1616 | * allocated relevant dquot(s) on disk, and that we won't exceed inode |
1617 | * quotas by creating this file. | |
1618 | * This also attaches dquot(s) to the given inode after locking it, | |
1619 | * and returns the dquots corresponding to the uid and/or gid. | |
1620 | * | |
1621 | * in : inode (unlocked) | |
1622 | * out : udquot, gdquot with references taken and unlocked | |
1623 | */ | |
1624 | int | |
1625 | xfs_qm_vop_dqalloc( | |
7d095257 | 1626 | struct xfs_inode *ip, |
7aab1b28 DE |
1627 | xfs_dqid_t uid, |
1628 | xfs_dqid_t gid, | |
7d095257 CH |
1629 | prid_t prid, |
1630 | uint flags, | |
1631 | struct xfs_dquot **O_udqpp, | |
92f8ff73 CS |
1632 | struct xfs_dquot **O_gdqpp, |
1633 | struct xfs_dquot **O_pdqpp) | |
1da177e4 | 1634 | { |
7d095257 | 1635 | struct xfs_mount *mp = ip->i_mount; |
113a5683 CS |
1636 | struct xfs_dquot *uq = NULL; |
1637 | struct xfs_dquot *gq = NULL; | |
92f8ff73 | 1638 | struct xfs_dquot *pq = NULL; |
7d095257 CH |
1639 | int error; |
1640 | uint lockflags; | |
1da177e4 | 1641 | |
7d095257 | 1642 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
1da177e4 LT |
1643 | return 0; |
1644 | ||
1645 | lockflags = XFS_ILOCK_EXCL; | |
1646 | xfs_ilock(ip, lockflags); | |
1647 | ||
bd186aa9 | 1648 | if ((flags & XFS_QMOPT_INHERIT) && XFS_INHERIT_GID(ip)) |
1da177e4 LT |
1649 | gid = ip->i_d.di_gid; |
1650 | ||
1651 | /* | |
1652 | * Attach the dquot(s) to this inode, doing a dquot allocation | |
1653 | * if necessary. The dquot(s) will not be locked. | |
1654 | */ | |
1655 | if (XFS_NOT_DQATTACHED(mp, ip)) { | |
7d095257 CH |
1656 | error = xfs_qm_dqattach_locked(ip, XFS_QMOPT_DQALLOC); |
1657 | if (error) { | |
1da177e4 | 1658 | xfs_iunlock(ip, lockflags); |
014c2544 | 1659 | return error; |
1da177e4 LT |
1660 | } |
1661 | } | |
1662 | ||
c8ad20ff | 1663 | if ((flags & XFS_QMOPT_UQUOTA) && XFS_IS_UQUOTA_ON(mp)) { |
1da177e4 LT |
1664 | if (ip->i_d.di_uid != uid) { |
1665 | /* | |
1666 | * What we need is the dquot that has this uid, and | |
1667 | * if we send the inode to dqget, the uid of the inode | |
1668 | * takes priority over what's sent in the uid argument. | |
1669 | * We must unlock inode here before calling dqget if | |
1670 | * we're not sending the inode, because otherwise | |
1671 | * we'll deadlock by doing trans_reserve while | |
1672 | * holding ilock. | |
1673 | */ | |
1674 | xfs_iunlock(ip, lockflags); | |
7aab1b28 | 1675 | error = xfs_qm_dqget(mp, NULL, uid, |
1da177e4 LT |
1676 | XFS_DQ_USER, |
1677 | XFS_QMOPT_DQALLOC | | |
1678 | XFS_QMOPT_DOWARN, | |
113a5683 CS |
1679 | &uq); |
1680 | if (error) { | |
1da177e4 | 1681 | ASSERT(error != ENOENT); |
014c2544 | 1682 | return error; |
1da177e4 LT |
1683 | } |
1684 | /* | |
1685 | * Get the ilock in the right order. | |
1686 | */ | |
1687 | xfs_dqunlock(uq); | |
1688 | lockflags = XFS_ILOCK_SHARED; | |
1689 | xfs_ilock(ip, lockflags); | |
1690 | } else { | |
1691 | /* | |
1692 | * Take an extra reference, because we'll return | |
1693 | * this to caller | |
1694 | */ | |
1695 | ASSERT(ip->i_udquot); | |
78e55892 | 1696 | uq = xfs_qm_dqhold(ip->i_udquot); |
1da177e4 LT |
1697 | } |
1698 | } | |
c8ad20ff | 1699 | if ((flags & XFS_QMOPT_GQUOTA) && XFS_IS_GQUOTA_ON(mp)) { |
1da177e4 LT |
1700 | if (ip->i_d.di_gid != gid) { |
1701 | xfs_iunlock(ip, lockflags); | |
7aab1b28 | 1702 | error = xfs_qm_dqget(mp, NULL, gid, |
1da177e4 LT |
1703 | XFS_DQ_GROUP, |
1704 | XFS_QMOPT_DQALLOC | | |
1705 | XFS_QMOPT_DOWARN, | |
113a5683 CS |
1706 | &gq); |
1707 | if (error) { | |
1da177e4 | 1708 | ASSERT(error != ENOENT); |
113a5683 | 1709 | goto error_rele; |
1da177e4 LT |
1710 | } |
1711 | xfs_dqunlock(gq); | |
1712 | lockflags = XFS_ILOCK_SHARED; | |
1713 | xfs_ilock(ip, lockflags); | |
1714 | } else { | |
1715 | ASSERT(ip->i_gdquot); | |
78e55892 | 1716 | gq = xfs_qm_dqhold(ip->i_gdquot); |
1da177e4 | 1717 | } |
92f8ff73 CS |
1718 | } |
1719 | if ((flags & XFS_QMOPT_PQUOTA) && XFS_IS_PQUOTA_ON(mp)) { | |
6743099c | 1720 | if (xfs_get_projid(ip) != prid) { |
c8ad20ff | 1721 | xfs_iunlock(ip, lockflags); |
113a5683 | 1722 | error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t)prid, |
c8ad20ff NS |
1723 | XFS_DQ_PROJ, |
1724 | XFS_QMOPT_DQALLOC | | |
1725 | XFS_QMOPT_DOWARN, | |
92f8ff73 | 1726 | &pq); |
113a5683 | 1727 | if (error) { |
c8ad20ff | 1728 | ASSERT(error != ENOENT); |
113a5683 | 1729 | goto error_rele; |
c8ad20ff | 1730 | } |
92f8ff73 | 1731 | xfs_dqunlock(pq); |
c8ad20ff NS |
1732 | lockflags = XFS_ILOCK_SHARED; |
1733 | xfs_ilock(ip, lockflags); | |
1734 | } else { | |
92f8ff73 CS |
1735 | ASSERT(ip->i_pdquot); |
1736 | pq = xfs_qm_dqhold(ip->i_pdquot); | |
c8ad20ff | 1737 | } |
1da177e4 LT |
1738 | } |
1739 | if (uq) | |
0b1b213f | 1740 | trace_xfs_dquot_dqalloc(ip); |
1da177e4 LT |
1741 | |
1742 | xfs_iunlock(ip, lockflags); | |
1743 | if (O_udqpp) | |
1744 | *O_udqpp = uq; | |
1745 | else if (uq) | |
1746 | xfs_qm_dqrele(uq); | |
1747 | if (O_gdqpp) | |
1748 | *O_gdqpp = gq; | |
1749 | else if (gq) | |
1750 | xfs_qm_dqrele(gq); | |
92f8ff73 CS |
1751 | if (O_pdqpp) |
1752 | *O_pdqpp = pq; | |
1753 | else if (pq) | |
1754 | xfs_qm_dqrele(pq); | |
014c2544 | 1755 | return 0; |
113a5683 CS |
1756 | |
1757 | error_rele: | |
92f8ff73 CS |
1758 | if (gq) |
1759 | xfs_qm_dqrele(gq); | |
113a5683 CS |
1760 | if (uq) |
1761 | xfs_qm_dqrele(uq); | |
1762 | return error; | |
1da177e4 LT |
1763 | } |
1764 | ||
1765 | /* | |
1766 | * Actually transfer ownership, and do dquot modifications. | |
1767 | * These were already reserved. | |
1768 | */ | |
1769 | xfs_dquot_t * | |
1770 | xfs_qm_vop_chown( | |
1771 | xfs_trans_t *tp, | |
1772 | xfs_inode_t *ip, | |
1773 | xfs_dquot_t **IO_olddq, | |
1774 | xfs_dquot_t *newdq) | |
1775 | { | |
1776 | xfs_dquot_t *prevdq; | |
06d10dd9 NS |
1777 | uint bfield = XFS_IS_REALTIME_INODE(ip) ? |
1778 | XFS_TRANS_DQ_RTBCOUNT : XFS_TRANS_DQ_BCOUNT; | |
1779 | ||
7d095257 | 1780 | |
579aa9ca | 1781 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
1782 | ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount)); |
1783 | ||
1784 | /* old dquot */ | |
1785 | prevdq = *IO_olddq; | |
1786 | ASSERT(prevdq); | |
1787 | ASSERT(prevdq != newdq); | |
1788 | ||
06d10dd9 NS |
1789 | xfs_trans_mod_dquot(tp, prevdq, bfield, -(ip->i_d.di_nblocks)); |
1790 | xfs_trans_mod_dquot(tp, prevdq, XFS_TRANS_DQ_ICOUNT, -1); | |
1da177e4 LT |
1791 | |
1792 | /* the sparkling new dquot */ | |
06d10dd9 NS |
1793 | xfs_trans_mod_dquot(tp, newdq, bfield, ip->i_d.di_nblocks); |
1794 | xfs_trans_mod_dquot(tp, newdq, XFS_TRANS_DQ_ICOUNT, 1); | |
1da177e4 LT |
1795 | |
1796 | /* | |
78e55892 CH |
1797 | * Take an extra reference, because the inode is going to keep |
1798 | * this dquot pointer even after the trans_commit. | |
1da177e4 | 1799 | */ |
78e55892 | 1800 | *IO_olddq = xfs_qm_dqhold(newdq); |
1da177e4 | 1801 | |
014c2544 | 1802 | return prevdq; |
1da177e4 LT |
1803 | } |
1804 | ||
1805 | /* | |
c8ad20ff | 1806 | * Quota reservations for setattr(AT_UID|AT_GID|AT_PROJID). |
1da177e4 LT |
1807 | */ |
1808 | int | |
1809 | xfs_qm_vop_chown_reserve( | |
113a5683 CS |
1810 | struct xfs_trans *tp, |
1811 | struct xfs_inode *ip, | |
1812 | struct xfs_dquot *udqp, | |
1813 | struct xfs_dquot *gdqp, | |
92f8ff73 | 1814 | struct xfs_dquot *pdqp, |
113a5683 | 1815 | uint flags) |
1da177e4 | 1816 | { |
113a5683 CS |
1817 | struct xfs_mount *mp = ip->i_mount; |
1818 | uint delblks, blkflags, prjflags = 0; | |
1819 | struct xfs_dquot *udq_unres = NULL; | |
1820 | struct xfs_dquot *gdq_unres = NULL; | |
92f8ff73 | 1821 | struct xfs_dquot *pdq_unres = NULL; |
113a5683 CS |
1822 | struct xfs_dquot *udq_delblks = NULL; |
1823 | struct xfs_dquot *gdq_delblks = NULL; | |
92f8ff73 | 1824 | struct xfs_dquot *pdq_delblks = NULL; |
113a5683 | 1825 | int error; |
7d095257 | 1826 | |
1da177e4 | 1827 | |
579aa9ca | 1828 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED)); |
1da177e4 LT |
1829 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1830 | ||
1831 | delblks = ip->i_delayed_blks; | |
06d10dd9 NS |
1832 | blkflags = XFS_IS_REALTIME_INODE(ip) ? |
1833 | XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS; | |
1da177e4 LT |
1834 | |
1835 | if (XFS_IS_UQUOTA_ON(mp) && udqp && | |
7aab1b28 | 1836 | ip->i_d.di_uid != be32_to_cpu(udqp->q_core.d_id)) { |
113a5683 | 1837 | udq_delblks = udqp; |
1da177e4 LT |
1838 | /* |
1839 | * If there are delayed allocation blocks, then we have to | |
1840 | * unreserve those from the old dquot, and add them to the | |
1841 | * new dquot. | |
1842 | */ | |
1843 | if (delblks) { | |
1844 | ASSERT(ip->i_udquot); | |
113a5683 | 1845 | udq_unres = ip->i_udquot; |
1da177e4 LT |
1846 | } |
1847 | } | |
92f8ff73 CS |
1848 | if (XFS_IS_GQUOTA_ON(ip->i_mount) && gdqp && |
1849 | ip->i_d.di_gid != be32_to_cpu(gdqp->q_core.d_id)) { | |
1850 | gdq_delblks = gdqp; | |
1851 | if (delblks) { | |
1852 | ASSERT(ip->i_gdquot); | |
1853 | gdq_unres = ip->i_gdquot; | |
1854 | } | |
1855 | } | |
1856 | ||
1857 | if (XFS_IS_PQUOTA_ON(ip->i_mount) && pdqp && | |
1858 | xfs_get_projid(ip) != be32_to_cpu(pdqp->q_core.d_id)) { | |
1859 | prjflags = XFS_QMOPT_ENOSPC; | |
1860 | pdq_delblks = pdqp; | |
1861 | if (delblks) { | |
1862 | ASSERT(ip->i_pdquot); | |
1863 | pdq_unres = ip->i_pdquot; | |
1da177e4 LT |
1864 | } |
1865 | } | |
1866 | ||
113a5683 | 1867 | error = xfs_trans_reserve_quota_bydquots(tp, ip->i_mount, |
92f8ff73 CS |
1868 | udq_delblks, gdq_delblks, pdq_delblks, |
1869 | ip->i_d.di_nblocks, 1, | |
113a5683 CS |
1870 | flags | blkflags | prjflags); |
1871 | if (error) | |
1872 | return error; | |
1da177e4 LT |
1873 | |
1874 | /* | |
1875 | * Do the delayed blks reservations/unreservations now. Since, these | |
1876 | * are done without the help of a transaction, if a reservation fails | |
1877 | * its previous reservations won't be automatically undone by trans | |
1878 | * code. So, we have to do it manually here. | |
1879 | */ | |
1880 | if (delblks) { | |
1881 | /* | |
1882 | * Do the reservations first. Unreservation can't fail. | |
1883 | */ | |
92f8ff73 CS |
1884 | ASSERT(udq_delblks || gdq_delblks || pdq_delblks); |
1885 | ASSERT(udq_unres || gdq_unres || pdq_unres); | |
113a5683 | 1886 | error = xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, |
92f8ff73 CS |
1887 | udq_delblks, gdq_delblks, pdq_delblks, |
1888 | (xfs_qcnt_t)delblks, 0, | |
113a5683 CS |
1889 | flags | blkflags | prjflags); |
1890 | if (error) | |
1891 | return error; | |
1da177e4 | 1892 | xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, |
92f8ff73 CS |
1893 | udq_unres, gdq_unres, pdq_unres, |
1894 | -((xfs_qcnt_t)delblks), 0, blkflags); | |
1da177e4 LT |
1895 | } |
1896 | ||
1897 | return (0); | |
1898 | } | |
1899 | ||
1900 | int | |
1901 | xfs_qm_vop_rename_dqattach( | |
7d095257 | 1902 | struct xfs_inode **i_tab) |
1da177e4 | 1903 | { |
7d095257 CH |
1904 | struct xfs_mount *mp = i_tab[0]->i_mount; |
1905 | int i; | |
1da177e4 | 1906 | |
7d095257 | 1907 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
014c2544 | 1908 | return 0; |
1da177e4 | 1909 | |
7d095257 CH |
1910 | for (i = 0; (i < 4 && i_tab[i]); i++) { |
1911 | struct xfs_inode *ip = i_tab[i]; | |
1912 | int error; | |
1913 | ||
1da177e4 LT |
1914 | /* |
1915 | * Watch out for duplicate entries in the table. | |
1916 | */ | |
7d095257 CH |
1917 | if (i == 0 || ip != i_tab[i-1]) { |
1918 | if (XFS_NOT_DQATTACHED(mp, ip)) { | |
1da177e4 LT |
1919 | error = xfs_qm_dqattach(ip, 0); |
1920 | if (error) | |
014c2544 | 1921 | return error; |
1da177e4 LT |
1922 | } |
1923 | } | |
1924 | } | |
014c2544 | 1925 | return 0; |
1da177e4 LT |
1926 | } |
1927 | ||
1928 | void | |
7d095257 CH |
1929 | xfs_qm_vop_create_dqattach( |
1930 | struct xfs_trans *tp, | |
1931 | struct xfs_inode *ip, | |
1932 | struct xfs_dquot *udqp, | |
92f8ff73 CS |
1933 | struct xfs_dquot *gdqp, |
1934 | struct xfs_dquot *pdqp) | |
1da177e4 | 1935 | { |
7d095257 CH |
1936 | struct xfs_mount *mp = tp->t_mountp; |
1937 | ||
1938 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) | |
1da177e4 LT |
1939 | return; |
1940 | ||
579aa9ca | 1941 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
7d095257 | 1942 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
1da177e4 | 1943 | |
37eb9706 | 1944 | if (udqp && XFS_IS_UQUOTA_ON(mp)) { |
1da177e4 | 1945 | ASSERT(ip->i_udquot == NULL); |
1149d96a | 1946 | ASSERT(ip->i_d.di_uid == be32_to_cpu(udqp->q_core.d_id)); |
78e55892 CH |
1947 | |
1948 | ip->i_udquot = xfs_qm_dqhold(udqp); | |
1da177e4 LT |
1949 | xfs_trans_mod_dquot(tp, udqp, XFS_TRANS_DQ_ICOUNT, 1); |
1950 | } | |
37eb9706 | 1951 | if (gdqp && XFS_IS_GQUOTA_ON(mp)) { |
1da177e4 | 1952 | ASSERT(ip->i_gdquot == NULL); |
92f8ff73 | 1953 | ASSERT(ip->i_d.di_gid == be32_to_cpu(gdqp->q_core.d_id)); |
78e55892 | 1954 | ip->i_gdquot = xfs_qm_dqhold(gdqp); |
1da177e4 LT |
1955 | xfs_trans_mod_dquot(tp, gdqp, XFS_TRANS_DQ_ICOUNT, 1); |
1956 | } | |
37eb9706 | 1957 | if (pdqp && XFS_IS_PQUOTA_ON(mp)) { |
92f8ff73 | 1958 | ASSERT(ip->i_pdquot == NULL); |
92f8ff73 CS |
1959 | ASSERT(xfs_get_projid(ip) == be32_to_cpu(pdqp->q_core.d_id)); |
1960 | ||
1961 | ip->i_pdquot = xfs_qm_dqhold(pdqp); | |
1962 | xfs_trans_mod_dquot(tp, pdqp, XFS_TRANS_DQ_ICOUNT, 1); | |
1963 | } | |
1da177e4 LT |
1964 | } |
1965 |