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Commit | Line | Data |
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1da177e4 | 1 | /* |
4ce3121f NS |
2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
4ce3121f NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
4ce3121f NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
1da177e4 | 13 | * |
4ce3121f NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
1da177e4 | 17 | */ |
16f7e0fe RD |
18 | |
19 | #include <linux/capability.h> | |
20 | ||
1da177e4 LT |
21 | #include "xfs.h" |
22 | #include "xfs_fs.h" | |
a844f451 | 23 | #include "xfs_bit.h" |
1da177e4 | 24 | #include "xfs_log.h" |
a844f451 | 25 | #include "xfs_inum.h" |
1da177e4 LT |
26 | #include "xfs_trans.h" |
27 | #include "xfs_sb.h" | |
a844f451 | 28 | #include "xfs_ag.h" |
1da177e4 | 29 | #include "xfs_alloc.h" |
1da177e4 LT |
30 | #include "xfs_quota.h" |
31 | #include "xfs_mount.h" | |
1da177e4 | 32 | #include "xfs_bmap_btree.h" |
1da177e4 | 33 | #include "xfs_inode.h" |
a844f451 | 34 | #include "xfs_itable.h" |
1da177e4 | 35 | #include "xfs_bmap.h" |
1da177e4 LT |
36 | #include "xfs_rtalloc.h" |
37 | #include "xfs_error.h" | |
1da177e4 LT |
38 | #include "xfs_attr.h" |
39 | #include "xfs_buf_item.h" | |
40 | #include "xfs_utils.h" | |
1da177e4 | 41 | #include "xfs_qm.h" |
0b1b213f | 42 | #include "xfs_trace.h" |
1da177e4 LT |
43 | |
44 | #ifdef DEBUG | |
45 | # define qdprintk(s, args...) cmn_err(CE_DEBUG, s, ## args) | |
46 | #else | |
47 | # define qdprintk(s, args...) do { } while (0) | |
48 | #endif | |
49 | ||
1da177e4 LT |
50 | STATIC int xfs_qm_log_quotaoff(xfs_mount_t *, xfs_qoff_logitem_t **, uint); |
51 | STATIC int xfs_qm_log_quotaoff_end(xfs_mount_t *, xfs_qoff_logitem_t *, | |
52 | uint); | |
1da177e4 | 53 | STATIC uint xfs_qm_export_flags(uint); |
1da177e4 LT |
54 | STATIC uint xfs_qm_export_qtype_flags(uint); |
55 | STATIC void xfs_qm_export_dquot(xfs_mount_t *, xfs_disk_dquot_t *, | |
56 | fs_disk_quota_t *); | |
57 | ||
58 | ||
1da177e4 LT |
59 | /* |
60 | * Turn off quota accounting and/or enforcement for all udquots and/or | |
61 | * gdquots. Called only at unmount time. | |
62 | * | |
63 | * This assumes that there are no dquots of this file system cached | |
64 | * incore, and modifies the ondisk dquot directly. Therefore, for example, | |
65 | * it is an error to call this twice, without purging the cache. | |
66 | */ | |
fcafb71b | 67 | int |
1da177e4 LT |
68 | xfs_qm_scall_quotaoff( |
69 | xfs_mount_t *mp, | |
fcafb71b | 70 | uint flags) |
1da177e4 | 71 | { |
8a7b8a89 | 72 | struct xfs_quotainfo *q = mp->m_quotainfo; |
1da177e4 | 73 | uint dqtype; |
1da177e4 LT |
74 | int error; |
75 | uint inactivate_flags; | |
76 | xfs_qoff_logitem_t *qoffstart; | |
77 | int nculprits; | |
78 | ||
1da177e4 LT |
79 | /* |
80 | * No file system can have quotas enabled on disk but not in core. | |
81 | * Note that quota utilities (like quotaoff) _expect_ | |
82 | * errno == EEXIST here. | |
83 | */ | |
84 | if ((mp->m_qflags & flags) == 0) | |
85 | return XFS_ERROR(EEXIST); | |
86 | error = 0; | |
87 | ||
88 | flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD); | |
89 | ||
90 | /* | |
91 | * We don't want to deal with two quotaoffs messing up each other, | |
92 | * so we're going to serialize it. quotaoff isn't exactly a performance | |
93 | * critical thing. | |
94 | * If quotaoff, then we must be dealing with the root filesystem. | |
95 | */ | |
8a7b8a89 CH |
96 | ASSERT(q); |
97 | mutex_lock(&q->qi_quotaofflock); | |
1da177e4 LT |
98 | |
99 | /* | |
100 | * If we're just turning off quota enforcement, change mp and go. | |
101 | */ | |
102 | if ((flags & XFS_ALL_QUOTA_ACCT) == 0) { | |
103 | mp->m_qflags &= ~(flags); | |
104 | ||
3685c2a1 | 105 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 106 | mp->m_sb.sb_qflags = mp->m_qflags; |
3685c2a1 | 107 | spin_unlock(&mp->m_sb_lock); |
8a7b8a89 | 108 | mutex_unlock(&q->qi_quotaofflock); |
1da177e4 LT |
109 | |
110 | /* XXX what to do if error ? Revert back to old vals incore ? */ | |
111 | error = xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS); | |
112 | return (error); | |
113 | } | |
114 | ||
115 | dqtype = 0; | |
116 | inactivate_flags = 0; | |
117 | /* | |
118 | * If accounting is off, we must turn enforcement off, clear the | |
119 | * quota 'CHKD' certificate to make it known that we have to | |
120 | * do a quotacheck the next time this quota is turned on. | |
121 | */ | |
122 | if (flags & XFS_UQUOTA_ACCT) { | |
123 | dqtype |= XFS_QMOPT_UQUOTA; | |
124 | flags |= (XFS_UQUOTA_CHKD | XFS_UQUOTA_ENFD); | |
125 | inactivate_flags |= XFS_UQUOTA_ACTIVE; | |
126 | } | |
127 | if (flags & XFS_GQUOTA_ACCT) { | |
128 | dqtype |= XFS_QMOPT_GQUOTA; | |
c8ad20ff | 129 | flags |= (XFS_OQUOTA_CHKD | XFS_OQUOTA_ENFD); |
1da177e4 | 130 | inactivate_flags |= XFS_GQUOTA_ACTIVE; |
c8ad20ff NS |
131 | } else if (flags & XFS_PQUOTA_ACCT) { |
132 | dqtype |= XFS_QMOPT_PQUOTA; | |
133 | flags |= (XFS_OQUOTA_CHKD | XFS_OQUOTA_ENFD); | |
134 | inactivate_flags |= XFS_PQUOTA_ACTIVE; | |
1da177e4 LT |
135 | } |
136 | ||
137 | /* | |
138 | * Nothing to do? Don't complain. This happens when we're just | |
139 | * turning off quota enforcement. | |
140 | */ | |
8a7b8a89 CH |
141 | if ((mp->m_qflags & flags) == 0) |
142 | goto out_unlock; | |
1da177e4 LT |
143 | |
144 | /* | |
145 | * Write the LI_QUOTAOFF log record, and do SB changes atomically, | |
cb6edc26 DC |
146 | * and synchronously. If we fail to write, we should abort the |
147 | * operation as it cannot be recovered safely if we crash. | |
1da177e4 | 148 | */ |
cb6edc26 DC |
149 | error = xfs_qm_log_quotaoff(mp, &qoffstart, flags); |
150 | if (error) | |
8a7b8a89 | 151 | goto out_unlock; |
1da177e4 LT |
152 | |
153 | /* | |
154 | * Next we clear the XFS_MOUNT_*DQ_ACTIVE bit(s) in the mount struct | |
155 | * to take care of the race between dqget and quotaoff. We don't take | |
156 | * any special locks to reset these bits. All processes need to check | |
157 | * these bits *after* taking inode lock(s) to see if the particular | |
158 | * quota type is in the process of being turned off. If *ACTIVE, it is | |
159 | * guaranteed that all dquot structures and all quotainode ptrs will all | |
160 | * stay valid as long as that inode is kept locked. | |
161 | * | |
162 | * There is no turning back after this. | |
163 | */ | |
164 | mp->m_qflags &= ~inactivate_flags; | |
165 | ||
166 | /* | |
167 | * Give back all the dquot reference(s) held by inodes. | |
168 | * Here we go thru every single incore inode in this file system, and | |
169 | * do a dqrele on the i_udquot/i_gdquot that it may have. | |
170 | * Essentially, as long as somebody has an inode locked, this guarantees | |
171 | * that quotas will not be turned off. This is handy because in a | |
172 | * transaction once we lock the inode(s) and check for quotaon, we can | |
173 | * depend on the quota inodes (and other things) being valid as long as | |
174 | * we keep the lock(s). | |
175 | */ | |
176 | xfs_qm_dqrele_all_inodes(mp, flags); | |
177 | ||
178 | /* | |
179 | * Next we make the changes in the quota flag in the mount struct. | |
180 | * This isn't protected by a particular lock directly, because we | |
181 | * don't want to take a mrlock everytime we depend on quotas being on. | |
182 | */ | |
183 | mp->m_qflags &= ~(flags); | |
184 | ||
185 | /* | |
186 | * Go through all the dquots of this file system and purge them, | |
187 | * according to what was turned off. We may not be able to get rid | |
188 | * of all dquots, because dquots can have temporary references that | |
189 | * are not attached to inodes. eg. xfs_setattr, xfs_create. | |
190 | * So, if we couldn't purge all the dquots from the filesystem, | |
191 | * we can't get rid of the incore data structures. | |
192 | */ | |
8112e9dc | 193 | while ((nculprits = xfs_qm_dqpurge_all(mp, dqtype))) |
1da177e4 LT |
194 | delay(10 * nculprits); |
195 | ||
196 | /* | |
197 | * Transactions that had started before ACTIVE state bit was cleared | |
198 | * could have logged many dquots, so they'd have higher LSNs than | |
199 | * the first QUOTAOFF log record does. If we happen to crash when | |
200 | * the tail of the log has gone past the QUOTAOFF record, but | |
201 | * before the last dquot modification, those dquots __will__ | |
202 | * recover, and that's not good. | |
203 | * | |
204 | * So, we have QUOTAOFF start and end logitems; the start | |
205 | * logitem won't get overwritten until the end logitem appears... | |
206 | */ | |
cb6edc26 DC |
207 | error = xfs_qm_log_quotaoff_end(mp, qoffstart, flags); |
208 | if (error) { | |
209 | /* We're screwed now. Shutdown is the only option. */ | |
210 | xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE); | |
8a7b8a89 | 211 | goto out_unlock; |
cb6edc26 | 212 | } |
1da177e4 LT |
213 | |
214 | /* | |
215 | * If quotas is completely disabled, close shop. | |
216 | */ | |
c8ad20ff NS |
217 | if (((flags & XFS_MOUNT_QUOTA_ALL) == XFS_MOUNT_QUOTA_SET1) || |
218 | ((flags & XFS_MOUNT_QUOTA_ALL) == XFS_MOUNT_QUOTA_SET2)) { | |
8a7b8a89 | 219 | mutex_unlock(&q->qi_quotaofflock); |
1da177e4 LT |
220 | xfs_qm_destroy_quotainfo(mp); |
221 | return (0); | |
222 | } | |
223 | ||
224 | /* | |
8a7b8a89 | 225 | * Release our quotainode references if we don't need them anymore. |
1da177e4 | 226 | */ |
8a7b8a89 CH |
227 | if ((dqtype & XFS_QMOPT_UQUOTA) && q->qi_uquotaip) { |
228 | IRELE(q->qi_uquotaip); | |
229 | q->qi_uquotaip = NULL; | |
1da177e4 | 230 | } |
8a7b8a89 CH |
231 | if ((dqtype & (XFS_QMOPT_GQUOTA|XFS_QMOPT_PQUOTA)) && q->qi_gquotaip) { |
232 | IRELE(q->qi_gquotaip); | |
233 | q->qi_gquotaip = NULL; | |
1da177e4 | 234 | } |
1da177e4 | 235 | |
8a7b8a89 CH |
236 | out_unlock: |
237 | mutex_unlock(&q->qi_quotaofflock); | |
238 | return error; | |
1da177e4 LT |
239 | } |
240 | ||
5d18898b CH |
241 | STATIC int |
242 | xfs_qm_scall_trunc_qfile( | |
243 | struct xfs_mount *mp, | |
244 | xfs_ino_t ino) | |
245 | { | |
246 | struct xfs_inode *ip; | |
247 | struct xfs_trans *tp; | |
248 | int error; | |
249 | ||
250 | if (ino == NULLFSINO) | |
251 | return 0; | |
252 | ||
253 | error = xfs_iget(mp, NULL, ino, 0, 0, &ip); | |
254 | if (error) | |
255 | return error; | |
256 | ||
257 | xfs_ilock(ip, XFS_IOLOCK_EXCL); | |
258 | ||
259 | tp = xfs_trans_alloc(mp, XFS_TRANS_TRUNCATE_FILE); | |
260 | error = xfs_trans_reserve(tp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0, | |
261 | XFS_TRANS_PERM_LOG_RES, | |
262 | XFS_ITRUNCATE_LOG_COUNT); | |
263 | if (error) { | |
264 | xfs_trans_cancel(tp, 0); | |
265 | xfs_iunlock(ip, XFS_IOLOCK_EXCL); | |
266 | goto out_put; | |
267 | } | |
268 | ||
269 | xfs_ilock(ip, XFS_ILOCK_EXCL); | |
270 | xfs_trans_ijoin(tp, ip); | |
271 | ||
272 | error = xfs_itruncate_finish(&tp, ip, 0, XFS_DATA_FORK, 1); | |
273 | if (error) { | |
274 | xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | | |
275 | XFS_TRANS_ABORT); | |
276 | goto out_unlock; | |
277 | } | |
278 | ||
279 | xfs_ichgtime(ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG); | |
280 | error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES); | |
281 | ||
282 | out_unlock: | |
283 | xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL); | |
284 | out_put: | |
285 | IRELE(ip); | |
286 | return error; | |
287 | } | |
288 | ||
fcafb71b | 289 | int |
1da177e4 LT |
290 | xfs_qm_scall_trunc_qfiles( |
291 | xfs_mount_t *mp, | |
292 | uint flags) | |
293 | { | |
88ab0208 | 294 | int error = 0, error2 = 0; |
1da177e4 | 295 | |
62118709 | 296 | if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0) { |
1da177e4 LT |
297 | qdprintk("qtrunc flags=%x m_qflags=%x\n", flags, mp->m_qflags); |
298 | return XFS_ERROR(EINVAL); | |
299 | } | |
300 | ||
5d18898b CH |
301 | if (flags & XFS_DQ_USER) |
302 | error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_uquotino); | |
303 | if (flags & (XFS_DQ_GROUP|XFS_DQ_PROJ)) | |
304 | error2 = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_gquotino); | |
1da177e4 | 305 | |
88ab0208 | 306 | return error ? error : error2; |
1da177e4 LT |
307 | } |
308 | ||
1da177e4 LT |
309 | /* |
310 | * Switch on (a given) quota enforcement for a filesystem. This takes | |
311 | * effect immediately. | |
312 | * (Switching on quota accounting must be done at mount time.) | |
313 | */ | |
fcafb71b | 314 | int |
1da177e4 LT |
315 | xfs_qm_scall_quotaon( |
316 | xfs_mount_t *mp, | |
317 | uint flags) | |
318 | { | |
319 | int error; | |
1da177e4 LT |
320 | uint qf; |
321 | uint accflags; | |
322 | __int64_t sbflags; | |
323 | ||
1da177e4 LT |
324 | flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD); |
325 | /* | |
326 | * Switching on quota accounting must be done at mount time. | |
327 | */ | |
328 | accflags = flags & XFS_ALL_QUOTA_ACCT; | |
329 | flags &= ~(XFS_ALL_QUOTA_ACCT); | |
330 | ||
331 | sbflags = 0; | |
332 | ||
333 | if (flags == 0) { | |
334 | qdprintk("quotaon: zero flags, m_qflags=%x\n", mp->m_qflags); | |
335 | return XFS_ERROR(EINVAL); | |
336 | } | |
337 | ||
338 | /* No fs can turn on quotas with a delayed effect */ | |
339 | ASSERT((flags & XFS_ALL_QUOTA_ACCT) == 0); | |
340 | ||
341 | /* | |
342 | * Can't enforce without accounting. We check the superblock | |
343 | * qflags here instead of m_qflags because rootfs can have | |
344 | * quota acct on ondisk without m_qflags' knowing. | |
345 | */ | |
346 | if (((flags & XFS_UQUOTA_ACCT) == 0 && | |
347 | (mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) == 0 && | |
348 | (flags & XFS_UQUOTA_ENFD)) | |
349 | || | |
c8ad20ff NS |
350 | ((flags & XFS_PQUOTA_ACCT) == 0 && |
351 | (mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 && | |
424ea91b | 352 | (flags & XFS_GQUOTA_ACCT) == 0 && |
1da177e4 | 353 | (mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 && |
c8ad20ff | 354 | (flags & XFS_OQUOTA_ENFD))) { |
1da177e4 LT |
355 | qdprintk("Can't enforce without acct, flags=%x sbflags=%x\n", |
356 | flags, mp->m_sb.sb_qflags); | |
357 | return XFS_ERROR(EINVAL); | |
358 | } | |
359 | /* | |
360 | * If everything's upto-date incore, then don't waste time. | |
361 | */ | |
362 | if ((mp->m_qflags & flags) == flags) | |
363 | return XFS_ERROR(EEXIST); | |
364 | ||
365 | /* | |
366 | * Change sb_qflags on disk but not incore mp->qflags | |
367 | * if this is the root filesystem. | |
368 | */ | |
3685c2a1 | 369 | spin_lock(&mp->m_sb_lock); |
1da177e4 LT |
370 | qf = mp->m_sb.sb_qflags; |
371 | mp->m_sb.sb_qflags = qf | flags; | |
3685c2a1 | 372 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
373 | |
374 | /* | |
375 | * There's nothing to change if it's the same. | |
376 | */ | |
377 | if ((qf & flags) == flags && sbflags == 0) | |
378 | return XFS_ERROR(EEXIST); | |
379 | sbflags |= XFS_SB_QFLAGS; | |
380 | ||
381 | if ((error = xfs_qm_write_sb_changes(mp, sbflags))) | |
382 | return (error); | |
383 | /* | |
384 | * If we aren't trying to switch on quota enforcement, we are done. | |
385 | */ | |
386 | if (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) != | |
387 | (mp->m_qflags & XFS_UQUOTA_ACCT)) || | |
c8ad20ff NS |
388 | ((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) != |
389 | (mp->m_qflags & XFS_PQUOTA_ACCT)) || | |
390 | ((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) != | |
391 | (mp->m_qflags & XFS_GQUOTA_ACCT)) || | |
1da177e4 LT |
392 | (flags & XFS_ALL_QUOTA_ENFD) == 0) |
393 | return (0); | |
394 | ||
395 | if (! XFS_IS_QUOTA_RUNNING(mp)) | |
396 | return XFS_ERROR(ESRCH); | |
397 | ||
398 | /* | |
399 | * Switch on quota enforcement in core. | |
400 | */ | |
8a7b8a89 | 401 | mutex_lock(&mp->m_quotainfo->qi_quotaofflock); |
1da177e4 | 402 | mp->m_qflags |= (flags & XFS_ALL_QUOTA_ENFD); |
8a7b8a89 | 403 | mutex_unlock(&mp->m_quotainfo->qi_quotaofflock); |
1da177e4 LT |
404 | |
405 | return (0); | |
406 | } | |
407 | ||
408 | ||
1da177e4 LT |
409 | /* |
410 | * Return quota status information, such as uquota-off, enforcements, etc. | |
411 | */ | |
fcafb71b | 412 | int |
1da177e4 | 413 | xfs_qm_scall_getqstat( |
8a7b8a89 CH |
414 | struct xfs_mount *mp, |
415 | struct fs_quota_stat *out) | |
1da177e4 | 416 | { |
8a7b8a89 CH |
417 | struct xfs_quotainfo *q = mp->m_quotainfo; |
418 | struct xfs_inode *uip, *gip; | |
419 | boolean_t tempuqip, tempgqip; | |
1da177e4 LT |
420 | |
421 | uip = gip = NULL; | |
422 | tempuqip = tempgqip = B_FALSE; | |
423 | memset(out, 0, sizeof(fs_quota_stat_t)); | |
424 | ||
425 | out->qs_version = FS_QSTAT_VERSION; | |
62118709 | 426 | if (!xfs_sb_version_hasquota(&mp->m_sb)) { |
1da177e4 LT |
427 | out->qs_uquota.qfs_ino = NULLFSINO; |
428 | out->qs_gquota.qfs_ino = NULLFSINO; | |
429 | return (0); | |
430 | } | |
431 | out->qs_flags = (__uint16_t) xfs_qm_export_flags(mp->m_qflags & | |
432 | (XFS_ALL_QUOTA_ACCT| | |
433 | XFS_ALL_QUOTA_ENFD)); | |
434 | out->qs_pad = 0; | |
435 | out->qs_uquota.qfs_ino = mp->m_sb.sb_uquotino; | |
436 | out->qs_gquota.qfs_ino = mp->m_sb.sb_gquotino; | |
437 | ||
8a7b8a89 CH |
438 | if (q) { |
439 | uip = q->qi_uquotaip; | |
440 | gip = q->qi_gquotaip; | |
1da177e4 LT |
441 | } |
442 | if (!uip && mp->m_sb.sb_uquotino != NULLFSINO) { | |
443 | if (xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, | |
7b6259e7 | 444 | 0, 0, &uip) == 0) |
1da177e4 LT |
445 | tempuqip = B_TRUE; |
446 | } | |
447 | if (!gip && mp->m_sb.sb_gquotino != NULLFSINO) { | |
448 | if (xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, | |
7b6259e7 | 449 | 0, 0, &gip) == 0) |
1da177e4 LT |
450 | tempgqip = B_TRUE; |
451 | } | |
452 | if (uip) { | |
453 | out->qs_uquota.qfs_nblks = uip->i_d.di_nblocks; | |
454 | out->qs_uquota.qfs_nextents = uip->i_d.di_nextents; | |
455 | if (tempuqip) | |
43355099 | 456 | IRELE(uip); |
1da177e4 LT |
457 | } |
458 | if (gip) { | |
459 | out->qs_gquota.qfs_nblks = gip->i_d.di_nblocks; | |
460 | out->qs_gquota.qfs_nextents = gip->i_d.di_nextents; | |
461 | if (tempgqip) | |
43355099 | 462 | IRELE(gip); |
1da177e4 | 463 | } |
8a7b8a89 CH |
464 | if (q) { |
465 | out->qs_incoredqs = q->qi_dquots; | |
466 | out->qs_btimelimit = q->qi_btimelimit; | |
467 | out->qs_itimelimit = q->qi_itimelimit; | |
468 | out->qs_rtbtimelimit = q->qi_rtbtimelimit; | |
469 | out->qs_bwarnlimit = q->qi_bwarnlimit; | |
470 | out->qs_iwarnlimit = q->qi_iwarnlimit; | |
1da177e4 | 471 | } |
8a7b8a89 | 472 | return 0; |
1da177e4 LT |
473 | } |
474 | ||
c472b432 CH |
475 | #define XFS_DQ_MASK \ |
476 | (FS_DQ_LIMIT_MASK | FS_DQ_TIMER_MASK | FS_DQ_WARNS_MASK) | |
477 | ||
1da177e4 LT |
478 | /* |
479 | * Adjust quota limits, and start/stop timers accordingly. | |
480 | */ | |
fcafb71b | 481 | int |
1da177e4 LT |
482 | xfs_qm_scall_setqlim( |
483 | xfs_mount_t *mp, | |
484 | xfs_dqid_t id, | |
485 | uint type, | |
486 | fs_disk_quota_t *newlim) | |
487 | { | |
8a7b8a89 | 488 | struct xfs_quotainfo *q = mp->m_quotainfo; |
1da177e4 LT |
489 | xfs_disk_dquot_t *ddq; |
490 | xfs_dquot_t *dqp; | |
491 | xfs_trans_t *tp; | |
492 | int error; | |
493 | xfs_qcnt_t hard, soft; | |
494 | ||
c472b432 CH |
495 | if (newlim->d_fieldmask & ~XFS_DQ_MASK) |
496 | return EINVAL; | |
497 | if ((newlim->d_fieldmask & XFS_DQ_MASK) == 0) | |
498 | return 0; | |
1da177e4 LT |
499 | |
500 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SETQLIM); | |
501 | if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_disk_dquot_t) + 128, | |
502 | 0, 0, XFS_DEFAULT_LOG_COUNT))) { | |
503 | xfs_trans_cancel(tp, 0); | |
504 | return (error); | |
505 | } | |
506 | ||
507 | /* | |
508 | * We don't want to race with a quotaoff so take the quotaoff lock. | |
509 | * (We don't hold an inode lock, so there's nothing else to stop | |
510 | * a quotaoff from happening). (XXXThis doesn't currently happen | |
511 | * because we take the vfslock before calling xfs_qm_sysent). | |
512 | */ | |
8a7b8a89 | 513 | mutex_lock(&q->qi_quotaofflock); |
1da177e4 LT |
514 | |
515 | /* | |
516 | * Get the dquot (locked), and join it to the transaction. | |
517 | * Allocate the dquot if this doesn't exist. | |
518 | */ | |
519 | if ((error = xfs_qm_dqget(mp, NULL, id, type, XFS_QMOPT_DQALLOC, &dqp))) { | |
520 | xfs_trans_cancel(tp, XFS_TRANS_ABORT); | |
1da177e4 | 521 | ASSERT(error != ENOENT); |
8a7b8a89 | 522 | goto out_unlock; |
1da177e4 | 523 | } |
1da177e4 LT |
524 | xfs_trans_dqjoin(tp, dqp); |
525 | ddq = &dqp->q_core; | |
526 | ||
527 | /* | |
528 | * Make sure that hardlimits are >= soft limits before changing. | |
529 | */ | |
530 | hard = (newlim->d_fieldmask & FS_DQ_BHARD) ? | |
531 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_hardlimit) : | |
1149d96a | 532 | be64_to_cpu(ddq->d_blk_hardlimit); |
1da177e4 LT |
533 | soft = (newlim->d_fieldmask & FS_DQ_BSOFT) ? |
534 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_softlimit) : | |
1149d96a | 535 | be64_to_cpu(ddq->d_blk_softlimit); |
1da177e4 | 536 | if (hard == 0 || hard >= soft) { |
1149d96a CH |
537 | ddq->d_blk_hardlimit = cpu_to_be64(hard); |
538 | ddq->d_blk_softlimit = cpu_to_be64(soft); | |
1da177e4 | 539 | if (id == 0) { |
8a7b8a89 CH |
540 | q->qi_bhardlimit = hard; |
541 | q->qi_bsoftlimit = soft; | |
1da177e4 LT |
542 | } |
543 | } else { | |
544 | qdprintk("blkhard %Ld < blksoft %Ld\n", hard, soft); | |
545 | } | |
546 | hard = (newlim->d_fieldmask & FS_DQ_RTBHARD) ? | |
547 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_hardlimit) : | |
1149d96a | 548 | be64_to_cpu(ddq->d_rtb_hardlimit); |
1da177e4 LT |
549 | soft = (newlim->d_fieldmask & FS_DQ_RTBSOFT) ? |
550 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_softlimit) : | |
1149d96a | 551 | be64_to_cpu(ddq->d_rtb_softlimit); |
1da177e4 | 552 | if (hard == 0 || hard >= soft) { |
1149d96a CH |
553 | ddq->d_rtb_hardlimit = cpu_to_be64(hard); |
554 | ddq->d_rtb_softlimit = cpu_to_be64(soft); | |
1da177e4 | 555 | if (id == 0) { |
8a7b8a89 CH |
556 | q->qi_rtbhardlimit = hard; |
557 | q->qi_rtbsoftlimit = soft; | |
1da177e4 LT |
558 | } |
559 | } else { | |
560 | qdprintk("rtbhard %Ld < rtbsoft %Ld\n", hard, soft); | |
561 | } | |
562 | ||
563 | hard = (newlim->d_fieldmask & FS_DQ_IHARD) ? | |
564 | (xfs_qcnt_t) newlim->d_ino_hardlimit : | |
1149d96a | 565 | be64_to_cpu(ddq->d_ino_hardlimit); |
1da177e4 LT |
566 | soft = (newlim->d_fieldmask & FS_DQ_ISOFT) ? |
567 | (xfs_qcnt_t) newlim->d_ino_softlimit : | |
1149d96a | 568 | be64_to_cpu(ddq->d_ino_softlimit); |
1da177e4 | 569 | if (hard == 0 || hard >= soft) { |
1149d96a CH |
570 | ddq->d_ino_hardlimit = cpu_to_be64(hard); |
571 | ddq->d_ino_softlimit = cpu_to_be64(soft); | |
1da177e4 | 572 | if (id == 0) { |
8a7b8a89 CH |
573 | q->qi_ihardlimit = hard; |
574 | q->qi_isoftlimit = soft; | |
1da177e4 LT |
575 | } |
576 | } else { | |
577 | qdprintk("ihard %Ld < isoft %Ld\n", hard, soft); | |
578 | } | |
579 | ||
754002b4 NS |
580 | /* |
581 | * Update warnings counter(s) if requested | |
582 | */ | |
583 | if (newlim->d_fieldmask & FS_DQ_BWARNS) | |
1149d96a | 584 | ddq->d_bwarns = cpu_to_be16(newlim->d_bwarns); |
754002b4 | 585 | if (newlim->d_fieldmask & FS_DQ_IWARNS) |
1149d96a | 586 | ddq->d_iwarns = cpu_to_be16(newlim->d_iwarns); |
754002b4 | 587 | if (newlim->d_fieldmask & FS_DQ_RTBWARNS) |
1149d96a | 588 | ddq->d_rtbwarns = cpu_to_be16(newlim->d_rtbwarns); |
754002b4 | 589 | |
1da177e4 LT |
590 | if (id == 0) { |
591 | /* | |
592 | * Timelimits for the super user set the relative time | |
593 | * the other users can be over quota for this file system. | |
594 | * If it is zero a default is used. Ditto for the default | |
754002b4 NS |
595 | * soft and hard limit values (already done, above), and |
596 | * for warnings. | |
1da177e4 LT |
597 | */ |
598 | if (newlim->d_fieldmask & FS_DQ_BTIMER) { | |
8a7b8a89 | 599 | q->qi_btimelimit = newlim->d_btimer; |
1149d96a | 600 | ddq->d_btimer = cpu_to_be32(newlim->d_btimer); |
1da177e4 LT |
601 | } |
602 | if (newlim->d_fieldmask & FS_DQ_ITIMER) { | |
8a7b8a89 | 603 | q->qi_itimelimit = newlim->d_itimer; |
1149d96a | 604 | ddq->d_itimer = cpu_to_be32(newlim->d_itimer); |
1da177e4 LT |
605 | } |
606 | if (newlim->d_fieldmask & FS_DQ_RTBTIMER) { | |
8a7b8a89 | 607 | q->qi_rtbtimelimit = newlim->d_rtbtimer; |
1149d96a | 608 | ddq->d_rtbtimer = cpu_to_be32(newlim->d_rtbtimer); |
1da177e4 | 609 | } |
754002b4 | 610 | if (newlim->d_fieldmask & FS_DQ_BWARNS) |
8a7b8a89 | 611 | q->qi_bwarnlimit = newlim->d_bwarns; |
754002b4 | 612 | if (newlim->d_fieldmask & FS_DQ_IWARNS) |
8a7b8a89 | 613 | q->qi_iwarnlimit = newlim->d_iwarns; |
754002b4 | 614 | if (newlim->d_fieldmask & FS_DQ_RTBWARNS) |
8a7b8a89 | 615 | q->qi_rtbwarnlimit = newlim->d_rtbwarns; |
754002b4 | 616 | } else { |
1da177e4 LT |
617 | /* |
618 | * If the user is now over quota, start the timelimit. | |
619 | * The user will not be 'warned'. | |
620 | * Note that we keep the timers ticking, whether enforcement | |
621 | * is on or off. We don't really want to bother with iterating | |
622 | * over all ondisk dquots and turning the timers on/off. | |
623 | */ | |
624 | xfs_qm_adjust_dqtimers(mp, ddq); | |
625 | } | |
626 | dqp->dq_flags |= XFS_DQ_DIRTY; | |
627 | xfs_trans_log_dquot(tp, dqp); | |
628 | ||
e5720eec | 629 | error = xfs_trans_commit(tp, 0); |
1da177e4 LT |
630 | xfs_qm_dqprint(dqp); |
631 | xfs_qm_dqrele(dqp); | |
1da177e4 | 632 | |
8a7b8a89 CH |
633 | out_unlock: |
634 | mutex_unlock(&q->qi_quotaofflock); | |
e5720eec | 635 | return error; |
1da177e4 LT |
636 | } |
637 | ||
fcafb71b | 638 | int |
1da177e4 LT |
639 | xfs_qm_scall_getquota( |
640 | xfs_mount_t *mp, | |
641 | xfs_dqid_t id, | |
642 | uint type, | |
643 | fs_disk_quota_t *out) | |
644 | { | |
645 | xfs_dquot_t *dqp; | |
646 | int error; | |
647 | ||
648 | /* | |
649 | * Try to get the dquot. We don't want it allocated on disk, so | |
650 | * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't | |
651 | * exist, we'll get ENOENT back. | |
652 | */ | |
653 | if ((error = xfs_qm_dqget(mp, NULL, id, type, 0, &dqp))) { | |
654 | return (error); | |
655 | } | |
656 | ||
1da177e4 LT |
657 | /* |
658 | * If everything's NULL, this dquot doesn't quite exist as far as | |
659 | * our utility programs are concerned. | |
660 | */ | |
661 | if (XFS_IS_DQUOT_UNINITIALIZED(dqp)) { | |
662 | xfs_qm_dqput(dqp); | |
663 | return XFS_ERROR(ENOENT); | |
664 | } | |
665 | /* xfs_qm_dqprint(dqp); */ | |
666 | /* | |
667 | * Convert the disk dquot to the exportable format | |
668 | */ | |
669 | xfs_qm_export_dquot(mp, &dqp->q_core, out); | |
670 | xfs_qm_dqput(dqp); | |
671 | return (error ? XFS_ERROR(EFAULT) : 0); | |
672 | } | |
673 | ||
674 | ||
675 | STATIC int | |
676 | xfs_qm_log_quotaoff_end( | |
677 | xfs_mount_t *mp, | |
678 | xfs_qoff_logitem_t *startqoff, | |
679 | uint flags) | |
680 | { | |
c8ad20ff | 681 | xfs_trans_t *tp; |
1da177e4 | 682 | int error; |
c8ad20ff | 683 | xfs_qoff_logitem_t *qoffi; |
1da177e4 LT |
684 | |
685 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF_END); | |
686 | ||
687 | if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_qoff_logitem_t) * 2, | |
688 | 0, 0, XFS_DEFAULT_LOG_COUNT))) { | |
689 | xfs_trans_cancel(tp, 0); | |
690 | return (error); | |
691 | } | |
692 | ||
693 | qoffi = xfs_trans_get_qoff_item(tp, startqoff, | |
694 | flags & XFS_ALL_QUOTA_ACCT); | |
695 | xfs_trans_log_quotaoff_item(tp, qoffi); | |
696 | ||
697 | /* | |
698 | * We have to make sure that the transaction is secure on disk before we | |
699 | * return and actually stop quota accounting. So, make it synchronous. | |
700 | * We don't care about quotoff's performance. | |
701 | */ | |
702 | xfs_trans_set_sync(tp); | |
1c72bf90 | 703 | error = xfs_trans_commit(tp, 0); |
1da177e4 LT |
704 | return (error); |
705 | } | |
706 | ||
707 | ||
708 | STATIC int | |
709 | xfs_qm_log_quotaoff( | |
710 | xfs_mount_t *mp, | |
711 | xfs_qoff_logitem_t **qoffstartp, | |
712 | uint flags) | |
713 | { | |
714 | xfs_trans_t *tp; | |
715 | int error; | |
1da177e4 LT |
716 | xfs_qoff_logitem_t *qoffi=NULL; |
717 | uint oldsbqflag=0; | |
718 | ||
719 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF); | |
720 | if ((error = xfs_trans_reserve(tp, 0, | |
721 | sizeof(xfs_qoff_logitem_t) * 2 + | |
722 | mp->m_sb.sb_sectsize + 128, | |
723 | 0, | |
724 | 0, | |
725 | XFS_DEFAULT_LOG_COUNT))) { | |
726 | goto error0; | |
727 | } | |
728 | ||
729 | qoffi = xfs_trans_get_qoff_item(tp, NULL, flags & XFS_ALL_QUOTA_ACCT); | |
730 | xfs_trans_log_quotaoff_item(tp, qoffi); | |
731 | ||
3685c2a1 | 732 | spin_lock(&mp->m_sb_lock); |
1da177e4 LT |
733 | oldsbqflag = mp->m_sb.sb_qflags; |
734 | mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL; | |
3685c2a1 | 735 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
736 | |
737 | xfs_mod_sb(tp, XFS_SB_QFLAGS); | |
738 | ||
739 | /* | |
740 | * We have to make sure that the transaction is secure on disk before we | |
741 | * return and actually stop quota accounting. So, make it synchronous. | |
742 | * We don't care about quotoff's performance. | |
743 | */ | |
744 | xfs_trans_set_sync(tp); | |
1c72bf90 | 745 | error = xfs_trans_commit(tp, 0); |
1da177e4 LT |
746 | |
747 | error0: | |
748 | if (error) { | |
749 | xfs_trans_cancel(tp, 0); | |
750 | /* | |
751 | * No one else is modifying sb_qflags, so this is OK. | |
752 | * We still hold the quotaofflock. | |
753 | */ | |
3685c2a1 | 754 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 755 | mp->m_sb.sb_qflags = oldsbqflag; |
3685c2a1 | 756 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
757 | } |
758 | *qoffstartp = qoffi; | |
759 | return (error); | |
760 | } | |
761 | ||
762 | ||
763 | /* | |
764 | * Translate an internal style on-disk-dquot to the exportable format. | |
765 | * The main differences are that the counters/limits are all in Basic | |
766 | * Blocks (BBs) instead of the internal FSBs, and all on-disk data has | |
767 | * to be converted to the native endianness. | |
768 | */ | |
769 | STATIC void | |
770 | xfs_qm_export_dquot( | |
771 | xfs_mount_t *mp, | |
772 | xfs_disk_dquot_t *src, | |
773 | struct fs_disk_quota *dst) | |
774 | { | |
775 | memset(dst, 0, sizeof(*dst)); | |
776 | dst->d_version = FS_DQUOT_VERSION; /* different from src->d_version */ | |
1149d96a CH |
777 | dst->d_flags = xfs_qm_export_qtype_flags(src->d_flags); |
778 | dst->d_id = be32_to_cpu(src->d_id); | |
779 | dst->d_blk_hardlimit = | |
780 | XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_blk_hardlimit)); | |
781 | dst->d_blk_softlimit = | |
782 | XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_blk_softlimit)); | |
783 | dst->d_ino_hardlimit = be64_to_cpu(src->d_ino_hardlimit); | |
784 | dst->d_ino_softlimit = be64_to_cpu(src->d_ino_softlimit); | |
785 | dst->d_bcount = XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_bcount)); | |
786 | dst->d_icount = be64_to_cpu(src->d_icount); | |
787 | dst->d_btimer = be32_to_cpu(src->d_btimer); | |
788 | dst->d_itimer = be32_to_cpu(src->d_itimer); | |
789 | dst->d_iwarns = be16_to_cpu(src->d_iwarns); | |
790 | dst->d_bwarns = be16_to_cpu(src->d_bwarns); | |
791 | dst->d_rtb_hardlimit = | |
792 | XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtb_hardlimit)); | |
793 | dst->d_rtb_softlimit = | |
794 | XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtb_softlimit)); | |
795 | dst->d_rtbcount = XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtbcount)); | |
796 | dst->d_rtbtimer = be32_to_cpu(src->d_rtbtimer); | |
797 | dst->d_rtbwarns = be16_to_cpu(src->d_rtbwarns); | |
1da177e4 LT |
798 | |
799 | /* | |
800 | * Internally, we don't reset all the timers when quota enforcement | |
c41564b5 | 801 | * gets turned off. No need to confuse the user level code, |
1da177e4 LT |
802 | * so return zeroes in that case. |
803 | */ | |
e6d29426 KO |
804 | if ((!XFS_IS_UQUOTA_ENFORCED(mp) && src->d_flags == XFS_DQ_USER) || |
805 | (!XFS_IS_OQUOTA_ENFORCED(mp) && | |
806 | (src->d_flags & (XFS_DQ_PROJ | XFS_DQ_GROUP)))) { | |
1da177e4 LT |
807 | dst->d_btimer = 0; |
808 | dst->d_itimer = 0; | |
809 | dst->d_rtbtimer = 0; | |
810 | } | |
811 | ||
812 | #ifdef DEBUG | |
ade7ce31 | 813 | if (((XFS_IS_UQUOTA_ENFORCED(mp) && dst->d_flags == FS_USER_QUOTA) || |
e6d29426 | 814 | (XFS_IS_OQUOTA_ENFORCED(mp) && |
ade7ce31 | 815 | (dst->d_flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)))) && |
e6d29426 | 816 | dst->d_id != 0) { |
1da177e4 LT |
817 | if (((int) dst->d_bcount >= (int) dst->d_blk_softlimit) && |
818 | (dst->d_blk_softlimit > 0)) { | |
819 | ASSERT(dst->d_btimer != 0); | |
820 | } | |
821 | if (((int) dst->d_icount >= (int) dst->d_ino_softlimit) && | |
822 | (dst->d_ino_softlimit > 0)) { | |
823 | ASSERT(dst->d_itimer != 0); | |
824 | } | |
825 | } | |
826 | #endif | |
827 | } | |
828 | ||
1da177e4 LT |
829 | STATIC uint |
830 | xfs_qm_export_qtype_flags( | |
831 | uint flags) | |
832 | { | |
833 | /* | |
c8ad20ff | 834 | * Can't be more than one, or none. |
1da177e4 | 835 | */ |
ade7ce31 CH |
836 | ASSERT((flags & (FS_PROJ_QUOTA | FS_USER_QUOTA)) != |
837 | (FS_PROJ_QUOTA | FS_USER_QUOTA)); | |
838 | ASSERT((flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)) != | |
839 | (FS_PROJ_QUOTA | FS_GROUP_QUOTA)); | |
840 | ASSERT((flags & (FS_USER_QUOTA | FS_GROUP_QUOTA)) != | |
841 | (FS_USER_QUOTA | FS_GROUP_QUOTA)); | |
842 | ASSERT((flags & (FS_PROJ_QUOTA|FS_USER_QUOTA|FS_GROUP_QUOTA)) != 0); | |
1da177e4 LT |
843 | |
844 | return (flags & XFS_DQ_USER) ? | |
ade7ce31 CH |
845 | FS_USER_QUOTA : (flags & XFS_DQ_PROJ) ? |
846 | FS_PROJ_QUOTA : FS_GROUP_QUOTA; | |
1da177e4 LT |
847 | } |
848 | ||
1da177e4 LT |
849 | STATIC uint |
850 | xfs_qm_export_flags( | |
851 | uint flags) | |
852 | { | |
853 | uint uflags; | |
854 | ||
855 | uflags = 0; | |
856 | if (flags & XFS_UQUOTA_ACCT) | |
ade7ce31 | 857 | uflags |= FS_QUOTA_UDQ_ACCT; |
c8ad20ff | 858 | if (flags & XFS_PQUOTA_ACCT) |
ade7ce31 | 859 | uflags |= FS_QUOTA_PDQ_ACCT; |
1da177e4 | 860 | if (flags & XFS_GQUOTA_ACCT) |
ade7ce31 | 861 | uflags |= FS_QUOTA_GDQ_ACCT; |
1da177e4 | 862 | if (flags & XFS_UQUOTA_ENFD) |
ade7ce31 | 863 | uflags |= FS_QUOTA_UDQ_ENFD; |
c8ad20ff NS |
864 | if (flags & (XFS_OQUOTA_ENFD)) { |
865 | uflags |= (flags & XFS_GQUOTA_ACCT) ? | |
ade7ce31 | 866 | FS_QUOTA_GDQ_ENFD : FS_QUOTA_PDQ_ENFD; |
c8ad20ff | 867 | } |
1da177e4 LT |
868 | return (uflags); |
869 | } | |
870 | ||
871 | ||
fe588ed3 CH |
872 | STATIC int |
873 | xfs_dqrele_inode( | |
874 | struct xfs_inode *ip, | |
875 | struct xfs_perag *pag, | |
876 | int flags) | |
1da177e4 | 877 | { |
fe588ed3 | 878 | int error; |
cb4f0d1d | 879 | |
fe588ed3 | 880 | /* skip quota inodes */ |
8a7b8a89 CH |
881 | if (ip == ip->i_mount->m_quotainfo->qi_uquotaip || |
882 | ip == ip->i_mount->m_quotainfo->qi_gquotaip) { | |
fe588ed3 CH |
883 | ASSERT(ip->i_udquot == NULL); |
884 | ASSERT(ip->i_gdquot == NULL); | |
cb4f0d1d | 885 | read_unlock(&pag->pag_ici_lock); |
fe588ed3 CH |
886 | return 0; |
887 | } | |
cb4f0d1d | 888 | |
fe588ed3 CH |
889 | error = xfs_sync_inode_valid(ip, pag); |
890 | if (error) | |
891 | return error; | |
6307091f | 892 | |
fe588ed3 CH |
893 | xfs_ilock(ip, XFS_ILOCK_EXCL); |
894 | if ((flags & XFS_UQUOTA_ACCT) && ip->i_udquot) { | |
895 | xfs_qm_dqrele(ip->i_udquot); | |
896 | ip->i_udquot = NULL; | |
897 | } | |
898 | if (flags & (XFS_PQUOTA_ACCT|XFS_GQUOTA_ACCT) && ip->i_gdquot) { | |
899 | xfs_qm_dqrele(ip->i_gdquot); | |
900 | ip->i_gdquot = NULL; | |
901 | } | |
f2d67614 | 902 | xfs_iunlock(ip, XFS_ILOCK_EXCL); |
cb4f0d1d | 903 | |
f2d67614 | 904 | IRELE(ip); |
fe588ed3 | 905 | return 0; |
5b4d89ae DC |
906 | } |
907 | ||
fe588ed3 | 908 | |
5b4d89ae DC |
909 | /* |
910 | * Go thru all the inodes in the file system, releasing their dquots. | |
fe588ed3 | 911 | * |
5b4d89ae | 912 | * Note that the mount structure gets modified to indicate that quotas are off |
fe588ed3 | 913 | * AFTER this, in the case of quotaoff. |
5b4d89ae DC |
914 | */ |
915 | void | |
916 | xfs_qm_dqrele_all_inodes( | |
917 | struct xfs_mount *mp, | |
918 | uint flags) | |
919 | { | |
5b4d89ae | 920 | ASSERT(mp->m_quotainfo); |
9bf729c0 DC |
921 | xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags, |
922 | XFS_ICI_NO_TAG, 0, NULL); | |
1da177e4 LT |
923 | } |
924 | ||
925 | /*------------------------------------------------------------------------*/ | |
926 | #ifdef DEBUG | |
927 | /* | |
928 | * This contains all the test functions for XFS disk quotas. | |
929 | * Currently it does a quota accounting check. ie. it walks through | |
930 | * all inodes in the file system, calculating the dquot accounting fields, | |
931 | * and prints out any inconsistencies. | |
932 | */ | |
933 | xfs_dqhash_t *qmtest_udqtab; | |
934 | xfs_dqhash_t *qmtest_gdqtab; | |
935 | int qmtest_hashmask; | |
936 | int qmtest_nfails; | |
a0b0b8a5 | 937 | struct mutex qcheck_lock; |
1da177e4 LT |
938 | |
939 | #define DQTEST_HASHVAL(mp, id) (((__psunsigned_t)(mp) + \ | |
940 | (__psunsigned_t)(id)) & \ | |
941 | (qmtest_hashmask - 1)) | |
942 | ||
943 | #define DQTEST_HASH(mp, id, type) ((type & XFS_DQ_USER) ? \ | |
944 | (qmtest_udqtab + \ | |
945 | DQTEST_HASHVAL(mp, id)) : \ | |
946 | (qmtest_gdqtab + \ | |
947 | DQTEST_HASHVAL(mp, id))) | |
948 | ||
949 | #define DQTEST_LIST_PRINT(l, NXT, title) \ | |
950 | { \ | |
951 | xfs_dqtest_t *dqp; int i = 0;\ | |
952 | cmn_err(CE_DEBUG, "%s (#%d)", title, (int) (l)->qh_nelems); \ | |
953 | for (dqp = (xfs_dqtest_t *)(l)->qh_next; dqp != NULL; \ | |
954 | dqp = (xfs_dqtest_t *)dqp->NXT) { \ | |
955 | cmn_err(CE_DEBUG, " %d. \"%d (%s)\" bcnt = %d, icnt = %d", \ | |
956 | ++i, dqp->d_id, DQFLAGTO_TYPESTR(dqp), \ | |
957 | dqp->d_bcount, dqp->d_icount); } \ | |
958 | } | |
959 | ||
960 | typedef struct dqtest { | |
74457cf4 | 961 | uint dq_flags; /* various flags (XFS_DQ_*) */ |
e6a81f13 | 962 | struct list_head q_hashlist; |
1da177e4 LT |
963 | xfs_dqhash_t *q_hash; /* the hashchain header */ |
964 | xfs_mount_t *q_mount; /* filesystem this relates to */ | |
965 | xfs_dqid_t d_id; /* user id or group id */ | |
966 | xfs_qcnt_t d_bcount; /* # disk blocks owned by the user */ | |
967 | xfs_qcnt_t d_icount; /* # inodes owned by the user */ | |
968 | } xfs_dqtest_t; | |
969 | ||
970 | STATIC void | |
971 | xfs_qm_hashinsert(xfs_dqhash_t *h, xfs_dqtest_t *dqp) | |
972 | { | |
e6a81f13 DC |
973 | list_add(&dqp->q_hashlist, &h->qh_list); |
974 | h->qh_version++; | |
975 | h->qh_nelems++; | |
1da177e4 LT |
976 | } |
977 | STATIC void | |
978 | xfs_qm_dqtest_print( | |
979 | xfs_dqtest_t *d) | |
980 | { | |
981 | cmn_err(CE_DEBUG, "-----------DQTEST DQUOT----------------"); | |
982 | cmn_err(CE_DEBUG, "---- dquot ID = %d", d->d_id); | |
1da177e4 LT |
983 | cmn_err(CE_DEBUG, "---- fs = 0x%p", d->q_mount); |
984 | cmn_err(CE_DEBUG, "---- bcount = %Lu (0x%x)", | |
985 | d->d_bcount, (int)d->d_bcount); | |
986 | cmn_err(CE_DEBUG, "---- icount = %Lu (0x%x)", | |
987 | d->d_icount, (int)d->d_icount); | |
988 | cmn_err(CE_DEBUG, "---------------------------"); | |
989 | } | |
990 | ||
991 | STATIC void | |
992 | xfs_qm_dqtest_failed( | |
993 | xfs_dqtest_t *d, | |
994 | xfs_dquot_t *dqp, | |
995 | char *reason, | |
996 | xfs_qcnt_t a, | |
997 | xfs_qcnt_t b, | |
998 | int error) | |
999 | { | |
1000 | qmtest_nfails++; | |
1001 | if (error) | |
1002 | cmn_err(CE_DEBUG, "quotacheck failed id=%d, err=%d\nreason: %s", | |
1149d96a | 1003 | d->d_id, error, reason); |
1da177e4 LT |
1004 | else |
1005 | cmn_err(CE_DEBUG, "quotacheck failed id=%d (%s) [%d != %d]", | |
1149d96a | 1006 | d->d_id, reason, (int)a, (int)b); |
1da177e4 LT |
1007 | xfs_qm_dqtest_print(d); |
1008 | if (dqp) | |
1009 | xfs_qm_dqprint(dqp); | |
1010 | } | |
1011 | ||
1012 | STATIC int | |
1013 | xfs_dqtest_cmp2( | |
1014 | xfs_dqtest_t *d, | |
1015 | xfs_dquot_t *dqp) | |
1016 | { | |
1017 | int err = 0; | |
1149d96a | 1018 | if (be64_to_cpu(dqp->q_core.d_icount) != d->d_icount) { |
1da177e4 | 1019 | xfs_qm_dqtest_failed(d, dqp, "icount mismatch", |
1149d96a | 1020 | be64_to_cpu(dqp->q_core.d_icount), |
1da177e4 LT |
1021 | d->d_icount, 0); |
1022 | err++; | |
1023 | } | |
1149d96a | 1024 | if (be64_to_cpu(dqp->q_core.d_bcount) != d->d_bcount) { |
1da177e4 | 1025 | xfs_qm_dqtest_failed(d, dqp, "bcount mismatch", |
1149d96a | 1026 | be64_to_cpu(dqp->q_core.d_bcount), |
1da177e4 LT |
1027 | d->d_bcount, 0); |
1028 | err++; | |
1029 | } | |
1149d96a CH |
1030 | if (dqp->q_core.d_blk_softlimit && |
1031 | be64_to_cpu(dqp->q_core.d_bcount) >= | |
1032 | be64_to_cpu(dqp->q_core.d_blk_softlimit)) { | |
1da177e4 LT |
1033 | if (!dqp->q_core.d_btimer && dqp->q_core.d_id) { |
1034 | cmn_err(CE_DEBUG, | |
1035 | "%d [%s] [0x%p] BLK TIMER NOT STARTED", | |
1036 | d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount); | |
1037 | err++; | |
1038 | } | |
1039 | } | |
1149d96a CH |
1040 | if (dqp->q_core.d_ino_softlimit && |
1041 | be64_to_cpu(dqp->q_core.d_icount) >= | |
1042 | be64_to_cpu(dqp->q_core.d_ino_softlimit)) { | |
1da177e4 LT |
1043 | if (!dqp->q_core.d_itimer && dqp->q_core.d_id) { |
1044 | cmn_err(CE_DEBUG, | |
1045 | "%d [%s] [0x%p] INO TIMER NOT STARTED", | |
1046 | d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount); | |
1047 | err++; | |
1048 | } | |
1049 | } | |
1050 | #ifdef QUOTADEBUG | |
1051 | if (!err) { | |
1052 | cmn_err(CE_DEBUG, "%d [%s] [0x%p] qchecked", | |
c8ad20ff | 1053 | d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount); |
1da177e4 LT |
1054 | } |
1055 | #endif | |
1056 | return (err); | |
1057 | } | |
1058 | ||
1059 | STATIC void | |
1060 | xfs_dqtest_cmp( | |
1061 | xfs_dqtest_t *d) | |
1062 | { | |
1063 | xfs_dquot_t *dqp; | |
1064 | int error; | |
1065 | ||
1066 | /* xfs_qm_dqtest_print(d); */ | |
1067 | if ((error = xfs_qm_dqget(d->q_mount, NULL, d->d_id, d->dq_flags, 0, | |
1068 | &dqp))) { | |
1069 | xfs_qm_dqtest_failed(d, NULL, "dqget failed", 0, 0, error); | |
1070 | return; | |
1071 | } | |
1072 | xfs_dqtest_cmp2(d, dqp); | |
1073 | xfs_qm_dqput(dqp); | |
1074 | } | |
1075 | ||
1076 | STATIC int | |
1077 | xfs_qm_internalqcheck_dqget( | |
1078 | xfs_mount_t *mp, | |
1079 | xfs_dqid_t id, | |
1080 | uint type, | |
1081 | xfs_dqtest_t **O_dq) | |
1082 | { | |
1083 | xfs_dqtest_t *d; | |
1084 | xfs_dqhash_t *h; | |
1085 | ||
1086 | h = DQTEST_HASH(mp, id, type); | |
e6a81f13 | 1087 | list_for_each_entry(d, &h->qh_list, q_hashlist) { |
1da177e4 LT |
1088 | if (d->d_id == id && mp == d->q_mount) { |
1089 | *O_dq = d; | |
1090 | return (0); | |
1091 | } | |
1092 | } | |
1093 | d = kmem_zalloc(sizeof(xfs_dqtest_t), KM_SLEEP); | |
1094 | d->dq_flags = type; | |
1095 | d->d_id = id; | |
1096 | d->q_mount = mp; | |
1097 | d->q_hash = h; | |
e6a81f13 | 1098 | INIT_LIST_HEAD(&d->q_hashlist); |
1da177e4 LT |
1099 | xfs_qm_hashinsert(h, d); |
1100 | *O_dq = d; | |
1101 | return (0); | |
1102 | } | |
1103 | ||
1104 | STATIC void | |
1105 | xfs_qm_internalqcheck_get_dquots( | |
1106 | xfs_mount_t *mp, | |
1107 | xfs_dqid_t uid, | |
c8ad20ff | 1108 | xfs_dqid_t projid, |
1da177e4 LT |
1109 | xfs_dqid_t gid, |
1110 | xfs_dqtest_t **ud, | |
1111 | xfs_dqtest_t **gd) | |
1112 | { | |
1113 | if (XFS_IS_UQUOTA_ON(mp)) | |
1114 | xfs_qm_internalqcheck_dqget(mp, uid, XFS_DQ_USER, ud); | |
1115 | if (XFS_IS_GQUOTA_ON(mp)) | |
1116 | xfs_qm_internalqcheck_dqget(mp, gid, XFS_DQ_GROUP, gd); | |
c8ad20ff NS |
1117 | else if (XFS_IS_PQUOTA_ON(mp)) |
1118 | xfs_qm_internalqcheck_dqget(mp, projid, XFS_DQ_PROJ, gd); | |
1da177e4 LT |
1119 | } |
1120 | ||
1121 | ||
1122 | STATIC void | |
1123 | xfs_qm_internalqcheck_dqadjust( | |
1124 | xfs_inode_t *ip, | |
1125 | xfs_dqtest_t *d) | |
1126 | { | |
1127 | d->d_icount++; | |
1128 | d->d_bcount += (xfs_qcnt_t)ip->i_d.di_nblocks; | |
1129 | } | |
1130 | ||
1131 | STATIC int | |
1132 | xfs_qm_internalqcheck_adjust( | |
1133 | xfs_mount_t *mp, /* mount point for filesystem */ | |
1134 | xfs_ino_t ino, /* inode number to get data for */ | |
1135 | void __user *buffer, /* not used */ | |
1136 | int ubsize, /* not used */ | |
1da177e4 | 1137 | int *ubused, /* not used */ |
1da177e4 LT |
1138 | int *res) /* bulkstat result code */ |
1139 | { | |
1140 | xfs_inode_t *ip; | |
1141 | xfs_dqtest_t *ud, *gd; | |
1142 | uint lock_flags; | |
1143 | boolean_t ipreleased; | |
1144 | int error; | |
1145 | ||
1146 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
1147 | ||
1148 | if (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino) { | |
1149 | *res = BULKSTAT_RV_NOTHING; | |
1150 | qdprintk("internalqcheck: ino=%llu, uqino=%llu, gqino=%llu\n", | |
1151 | (unsigned long long) ino, | |
1152 | (unsigned long long) mp->m_sb.sb_uquotino, | |
1153 | (unsigned long long) mp->m_sb.sb_gquotino); | |
1154 | return XFS_ERROR(EINVAL); | |
1155 | } | |
1156 | ipreleased = B_FALSE; | |
1157 | again: | |
1158 | lock_flags = XFS_ILOCK_SHARED; | |
7b6259e7 | 1159 | if ((error = xfs_iget(mp, NULL, ino, 0, lock_flags, &ip))) { |
1da177e4 LT |
1160 | *res = BULKSTAT_RV_NOTHING; |
1161 | return (error); | |
1162 | } | |
1163 | ||
1da177e4 LT |
1164 | /* |
1165 | * This inode can have blocks after eof which can get released | |
1166 | * when we send it to inactive. Since we don't check the dquot | |
1167 | * until the after all our calculations are done, we must get rid | |
1168 | * of those now. | |
1169 | */ | |
1170 | if (! ipreleased) { | |
f2d67614 CH |
1171 | xfs_iunlock(ip, lock_flags); |
1172 | IRELE(ip); | |
1da177e4 LT |
1173 | ipreleased = B_TRUE; |
1174 | goto again; | |
1175 | } | |
1176 | xfs_qm_internalqcheck_get_dquots(mp, | |
1177 | (xfs_dqid_t) ip->i_d.di_uid, | |
c8ad20ff | 1178 | (xfs_dqid_t) ip->i_d.di_projid, |
1da177e4 LT |
1179 | (xfs_dqid_t) ip->i_d.di_gid, |
1180 | &ud, &gd); | |
1181 | if (XFS_IS_UQUOTA_ON(mp)) { | |
1182 | ASSERT(ud); | |
1183 | xfs_qm_internalqcheck_dqadjust(ip, ud); | |
1184 | } | |
c8ad20ff | 1185 | if (XFS_IS_OQUOTA_ON(mp)) { |
1da177e4 LT |
1186 | ASSERT(gd); |
1187 | xfs_qm_internalqcheck_dqadjust(ip, gd); | |
1188 | } | |
f2d67614 CH |
1189 | xfs_iunlock(ip, lock_flags); |
1190 | IRELE(ip); | |
1da177e4 LT |
1191 | *res = BULKSTAT_RV_DIDONE; |
1192 | return (0); | |
1193 | } | |
1194 | ||
1195 | ||
1196 | /* PRIVATE, debugging */ | |
1197 | int | |
1198 | xfs_qm_internalqcheck( | |
1199 | xfs_mount_t *mp) | |
1200 | { | |
1201 | xfs_ino_t lastino; | |
1202 | int done, count; | |
1203 | int i; | |
1da177e4 LT |
1204 | int error; |
1205 | ||
1206 | lastino = 0; | |
1207 | qmtest_hashmask = 32; | |
1208 | count = 5; | |
1209 | done = 0; | |
1210 | qmtest_nfails = 0; | |
1211 | ||
1212 | if (! XFS_IS_QUOTA_ON(mp)) | |
1213 | return XFS_ERROR(ESRCH); | |
1214 | ||
a14a348b | 1215 | xfs_log_force(mp, XFS_LOG_SYNC); |
1da177e4 | 1216 | XFS_bflush(mp->m_ddev_targp); |
a14a348b | 1217 | xfs_log_force(mp, XFS_LOG_SYNC); |
1da177e4 LT |
1218 | XFS_bflush(mp->m_ddev_targp); |
1219 | ||
794ee1ba | 1220 | mutex_lock(&qcheck_lock); |
1da177e4 LT |
1221 | /* There should be absolutely no quota activity while this |
1222 | is going on. */ | |
1223 | qmtest_udqtab = kmem_zalloc(qmtest_hashmask * | |
1224 | sizeof(xfs_dqhash_t), KM_SLEEP); | |
1225 | qmtest_gdqtab = kmem_zalloc(qmtest_hashmask * | |
1226 | sizeof(xfs_dqhash_t), KM_SLEEP); | |
1227 | do { | |
1228 | /* | |
1229 | * Iterate thru all the inodes in the file system, | |
1230 | * adjusting the corresponding dquot counters | |
1231 | */ | |
7dce11db CH |
1232 | error = xfs_bulkstat(mp, &lastino, &count, |
1233 | xfs_qm_internalqcheck_adjust, | |
1234 | 0, NULL, &done); | |
1235 | if (error) { | |
1236 | cmn_err(CE_DEBUG, "Bulkstat returned error 0x%x", error); | |
1da177e4 LT |
1237 | break; |
1238 | } | |
7dce11db CH |
1239 | } while (!done); |
1240 | ||
1da177e4 LT |
1241 | cmn_err(CE_DEBUG, "Checking results against system dquots"); |
1242 | for (i = 0; i < qmtest_hashmask; i++) { | |
e6a81f13 DC |
1243 | xfs_dqtest_t *d, *n; |
1244 | xfs_dqhash_t *h; | |
1245 | ||
1246 | h = &qmtest_udqtab[i]; | |
1247 | list_for_each_entry_safe(d, n, &h->qh_list, q_hashlist) { | |
1da177e4 | 1248 | xfs_dqtest_cmp(d); |
f0e2d93c | 1249 | kmem_free(d); |
1da177e4 | 1250 | } |
e6a81f13 DC |
1251 | h = &qmtest_gdqtab[i]; |
1252 | list_for_each_entry_safe(d, n, &h->qh_list, q_hashlist) { | |
1da177e4 | 1253 | xfs_dqtest_cmp(d); |
f0e2d93c | 1254 | kmem_free(d); |
1da177e4 LT |
1255 | } |
1256 | } | |
1257 | ||
1258 | if (qmtest_nfails) { | |
1259 | cmn_err(CE_DEBUG, "******** quotacheck failed ********"); | |
1260 | cmn_err(CE_DEBUG, "failures = %d", qmtest_nfails); | |
1261 | } else { | |
1262 | cmn_err(CE_DEBUG, "******** quotacheck successful! ********"); | |
1263 | } | |
f0e2d93c DV |
1264 | kmem_free(qmtest_udqtab); |
1265 | kmem_free(qmtest_gdqtab); | |
1da177e4 LT |
1266 | mutex_unlock(&qcheck_lock); |
1267 | return (qmtest_nfails); | |
1268 | } | |
1269 | ||
1270 | #endif /* DEBUG */ |