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 | */ |
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 | 43 | |
1da177e4 LT |
44 | STATIC int xfs_qm_log_quotaoff(xfs_mount_t *, xfs_qoff_logitem_t **, uint); |
45 | STATIC int xfs_qm_log_quotaoff_end(xfs_mount_t *, xfs_qoff_logitem_t *, | |
46 | uint); | |
1da177e4 | 47 | STATIC uint xfs_qm_export_flags(uint); |
1da177e4 LT |
48 | STATIC uint xfs_qm_export_qtype_flags(uint); |
49 | STATIC void xfs_qm_export_dquot(xfs_mount_t *, xfs_disk_dquot_t *, | |
50 | fs_disk_quota_t *); | |
51 | ||
52 | ||
1da177e4 LT |
53 | /* |
54 | * Turn off quota accounting and/or enforcement for all udquots and/or | |
55 | * gdquots. Called only at unmount time. | |
56 | * | |
57 | * This assumes that there are no dquots of this file system cached | |
58 | * incore, and modifies the ondisk dquot directly. Therefore, for example, | |
59 | * it is an error to call this twice, without purging the cache. | |
60 | */ | |
fcafb71b | 61 | int |
1da177e4 LT |
62 | xfs_qm_scall_quotaoff( |
63 | xfs_mount_t *mp, | |
fcafb71b | 64 | uint flags) |
1da177e4 | 65 | { |
8a7b8a89 | 66 | struct xfs_quotainfo *q = mp->m_quotainfo; |
1da177e4 | 67 | uint dqtype; |
1da177e4 LT |
68 | int error; |
69 | uint inactivate_flags; | |
70 | xfs_qoff_logitem_t *qoffstart; | |
71 | int nculprits; | |
72 | ||
1da177e4 LT |
73 | /* |
74 | * No file system can have quotas enabled on disk but not in core. | |
75 | * Note that quota utilities (like quotaoff) _expect_ | |
76 | * errno == EEXIST here. | |
77 | */ | |
78 | if ((mp->m_qflags & flags) == 0) | |
79 | return XFS_ERROR(EEXIST); | |
80 | error = 0; | |
81 | ||
82 | flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD); | |
83 | ||
84 | /* | |
85 | * We don't want to deal with two quotaoffs messing up each other, | |
86 | * so we're going to serialize it. quotaoff isn't exactly a performance | |
87 | * critical thing. | |
88 | * If quotaoff, then we must be dealing with the root filesystem. | |
89 | */ | |
8a7b8a89 CH |
90 | ASSERT(q); |
91 | mutex_lock(&q->qi_quotaofflock); | |
1da177e4 LT |
92 | |
93 | /* | |
94 | * If we're just turning off quota enforcement, change mp and go. | |
95 | */ | |
96 | if ((flags & XFS_ALL_QUOTA_ACCT) == 0) { | |
97 | mp->m_qflags &= ~(flags); | |
98 | ||
3685c2a1 | 99 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 100 | mp->m_sb.sb_qflags = mp->m_qflags; |
3685c2a1 | 101 | spin_unlock(&mp->m_sb_lock); |
8a7b8a89 | 102 | mutex_unlock(&q->qi_quotaofflock); |
1da177e4 LT |
103 | |
104 | /* XXX what to do if error ? Revert back to old vals incore ? */ | |
105 | error = xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS); | |
106 | return (error); | |
107 | } | |
108 | ||
109 | dqtype = 0; | |
110 | inactivate_flags = 0; | |
111 | /* | |
112 | * If accounting is off, we must turn enforcement off, clear the | |
113 | * quota 'CHKD' certificate to make it known that we have to | |
114 | * do a quotacheck the next time this quota is turned on. | |
115 | */ | |
116 | if (flags & XFS_UQUOTA_ACCT) { | |
117 | dqtype |= XFS_QMOPT_UQUOTA; | |
118 | flags |= (XFS_UQUOTA_CHKD | XFS_UQUOTA_ENFD); | |
119 | inactivate_flags |= XFS_UQUOTA_ACTIVE; | |
120 | } | |
121 | if (flags & XFS_GQUOTA_ACCT) { | |
122 | dqtype |= XFS_QMOPT_GQUOTA; | |
c8ad20ff | 123 | flags |= (XFS_OQUOTA_CHKD | XFS_OQUOTA_ENFD); |
1da177e4 | 124 | inactivate_flags |= XFS_GQUOTA_ACTIVE; |
c8ad20ff NS |
125 | } else if (flags & XFS_PQUOTA_ACCT) { |
126 | dqtype |= XFS_QMOPT_PQUOTA; | |
127 | flags |= (XFS_OQUOTA_CHKD | XFS_OQUOTA_ENFD); | |
128 | inactivate_flags |= XFS_PQUOTA_ACTIVE; | |
1da177e4 LT |
129 | } |
130 | ||
131 | /* | |
132 | * Nothing to do? Don't complain. This happens when we're just | |
133 | * turning off quota enforcement. | |
134 | */ | |
8a7b8a89 CH |
135 | if ((mp->m_qflags & flags) == 0) |
136 | goto out_unlock; | |
1da177e4 LT |
137 | |
138 | /* | |
139 | * Write the LI_QUOTAOFF log record, and do SB changes atomically, | |
cb6edc26 DC |
140 | * and synchronously. If we fail to write, we should abort the |
141 | * operation as it cannot be recovered safely if we crash. | |
1da177e4 | 142 | */ |
cb6edc26 DC |
143 | error = xfs_qm_log_quotaoff(mp, &qoffstart, flags); |
144 | if (error) | |
8a7b8a89 | 145 | goto out_unlock; |
1da177e4 LT |
146 | |
147 | /* | |
148 | * Next we clear the XFS_MOUNT_*DQ_ACTIVE bit(s) in the mount struct | |
149 | * to take care of the race between dqget and quotaoff. We don't take | |
150 | * any special locks to reset these bits. All processes need to check | |
151 | * these bits *after* taking inode lock(s) to see if the particular | |
152 | * quota type is in the process of being turned off. If *ACTIVE, it is | |
153 | * guaranteed that all dquot structures and all quotainode ptrs will all | |
154 | * stay valid as long as that inode is kept locked. | |
155 | * | |
156 | * There is no turning back after this. | |
157 | */ | |
158 | mp->m_qflags &= ~inactivate_flags; | |
159 | ||
160 | /* | |
161 | * Give back all the dquot reference(s) held by inodes. | |
162 | * Here we go thru every single incore inode in this file system, and | |
163 | * do a dqrele on the i_udquot/i_gdquot that it may have. | |
164 | * Essentially, as long as somebody has an inode locked, this guarantees | |
165 | * that quotas will not be turned off. This is handy because in a | |
166 | * transaction once we lock the inode(s) and check for quotaon, we can | |
167 | * depend on the quota inodes (and other things) being valid as long as | |
168 | * we keep the lock(s). | |
169 | */ | |
170 | xfs_qm_dqrele_all_inodes(mp, flags); | |
171 | ||
172 | /* | |
173 | * Next we make the changes in the quota flag in the mount struct. | |
174 | * This isn't protected by a particular lock directly, because we | |
25985edc | 175 | * don't want to take a mrlock every time we depend on quotas being on. |
1da177e4 LT |
176 | */ |
177 | mp->m_qflags &= ~(flags); | |
178 | ||
179 | /* | |
180 | * Go through all the dquots of this file system and purge them, | |
181 | * according to what was turned off. We may not be able to get rid | |
182 | * of all dquots, because dquots can have temporary references that | |
183 | * are not attached to inodes. eg. xfs_setattr, xfs_create. | |
184 | * So, if we couldn't purge all the dquots from the filesystem, | |
185 | * we can't get rid of the incore data structures. | |
186 | */ | |
8112e9dc | 187 | while ((nculprits = xfs_qm_dqpurge_all(mp, dqtype))) |
1da177e4 LT |
188 | delay(10 * nculprits); |
189 | ||
190 | /* | |
191 | * Transactions that had started before ACTIVE state bit was cleared | |
192 | * could have logged many dquots, so they'd have higher LSNs than | |
193 | * the first QUOTAOFF log record does. If we happen to crash when | |
194 | * the tail of the log has gone past the QUOTAOFF record, but | |
195 | * before the last dquot modification, those dquots __will__ | |
196 | * recover, and that's not good. | |
197 | * | |
198 | * So, we have QUOTAOFF start and end logitems; the start | |
199 | * logitem won't get overwritten until the end logitem appears... | |
200 | */ | |
cb6edc26 DC |
201 | error = xfs_qm_log_quotaoff_end(mp, qoffstart, flags); |
202 | if (error) { | |
203 | /* We're screwed now. Shutdown is the only option. */ | |
204 | xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE); | |
8a7b8a89 | 205 | goto out_unlock; |
cb6edc26 | 206 | } |
1da177e4 LT |
207 | |
208 | /* | |
209 | * If quotas is completely disabled, close shop. | |
210 | */ | |
c8ad20ff NS |
211 | if (((flags & XFS_MOUNT_QUOTA_ALL) == XFS_MOUNT_QUOTA_SET1) || |
212 | ((flags & XFS_MOUNT_QUOTA_ALL) == XFS_MOUNT_QUOTA_SET2)) { | |
8a7b8a89 | 213 | mutex_unlock(&q->qi_quotaofflock); |
1da177e4 LT |
214 | xfs_qm_destroy_quotainfo(mp); |
215 | return (0); | |
216 | } | |
217 | ||
218 | /* | |
8a7b8a89 | 219 | * Release our quotainode references if we don't need them anymore. |
1da177e4 | 220 | */ |
8a7b8a89 CH |
221 | if ((dqtype & XFS_QMOPT_UQUOTA) && q->qi_uquotaip) { |
222 | IRELE(q->qi_uquotaip); | |
223 | q->qi_uquotaip = NULL; | |
1da177e4 | 224 | } |
8a7b8a89 CH |
225 | if ((dqtype & (XFS_QMOPT_GQUOTA|XFS_QMOPT_PQUOTA)) && q->qi_gquotaip) { |
226 | IRELE(q->qi_gquotaip); | |
227 | q->qi_gquotaip = NULL; | |
1da177e4 | 228 | } |
1da177e4 | 229 | |
8a7b8a89 CH |
230 | out_unlock: |
231 | mutex_unlock(&q->qi_quotaofflock); | |
232 | return error; | |
1da177e4 LT |
233 | } |
234 | ||
5d18898b CH |
235 | STATIC int |
236 | xfs_qm_scall_trunc_qfile( | |
237 | struct xfs_mount *mp, | |
238 | xfs_ino_t ino) | |
239 | { | |
240 | struct xfs_inode *ip; | |
241 | struct xfs_trans *tp; | |
242 | int error; | |
243 | ||
244 | if (ino == NULLFSINO) | |
245 | return 0; | |
246 | ||
247 | error = xfs_iget(mp, NULL, ino, 0, 0, &ip); | |
248 | if (error) | |
249 | return error; | |
250 | ||
251 | xfs_ilock(ip, XFS_IOLOCK_EXCL); | |
252 | ||
253 | tp = xfs_trans_alloc(mp, XFS_TRANS_TRUNCATE_FILE); | |
254 | error = xfs_trans_reserve(tp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0, | |
255 | XFS_TRANS_PERM_LOG_RES, | |
256 | XFS_ITRUNCATE_LOG_COUNT); | |
257 | if (error) { | |
258 | xfs_trans_cancel(tp, 0); | |
259 | xfs_iunlock(ip, XFS_IOLOCK_EXCL); | |
260 | goto out_put; | |
261 | } | |
262 | ||
263 | xfs_ilock(ip, XFS_ILOCK_EXCL); | |
264 | xfs_trans_ijoin(tp, ip); | |
265 | ||
266 | error = xfs_itruncate_finish(&tp, ip, 0, XFS_DATA_FORK, 1); | |
267 | if (error) { | |
268 | xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | | |
269 | XFS_TRANS_ABORT); | |
270 | goto out_unlock; | |
271 | } | |
272 | ||
dcd79a14 | 273 | xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG); |
5d18898b CH |
274 | error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES); |
275 | ||
276 | out_unlock: | |
277 | xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL); | |
278 | out_put: | |
279 | IRELE(ip); | |
280 | return error; | |
281 | } | |
282 | ||
fcafb71b | 283 | int |
1da177e4 LT |
284 | xfs_qm_scall_trunc_qfiles( |
285 | xfs_mount_t *mp, | |
286 | uint flags) | |
287 | { | |
88ab0208 | 288 | int error = 0, error2 = 0; |
1da177e4 | 289 | |
62118709 | 290 | if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0) { |
8221112b DC |
291 | xfs_debug(mp, "%s: flags=%x m_qflags=%x\n", |
292 | __func__, flags, mp->m_qflags); | |
1da177e4 LT |
293 | return XFS_ERROR(EINVAL); |
294 | } | |
295 | ||
5d18898b CH |
296 | if (flags & XFS_DQ_USER) |
297 | error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_uquotino); | |
298 | if (flags & (XFS_DQ_GROUP|XFS_DQ_PROJ)) | |
299 | error2 = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_gquotino); | |
1da177e4 | 300 | |
88ab0208 | 301 | return error ? error : error2; |
1da177e4 LT |
302 | } |
303 | ||
1da177e4 LT |
304 | /* |
305 | * Switch on (a given) quota enforcement for a filesystem. This takes | |
306 | * effect immediately. | |
307 | * (Switching on quota accounting must be done at mount time.) | |
308 | */ | |
fcafb71b | 309 | int |
1da177e4 LT |
310 | xfs_qm_scall_quotaon( |
311 | xfs_mount_t *mp, | |
312 | uint flags) | |
313 | { | |
314 | int error; | |
1da177e4 LT |
315 | uint qf; |
316 | uint accflags; | |
317 | __int64_t sbflags; | |
318 | ||
1da177e4 LT |
319 | flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD); |
320 | /* | |
321 | * Switching on quota accounting must be done at mount time. | |
322 | */ | |
323 | accflags = flags & XFS_ALL_QUOTA_ACCT; | |
324 | flags &= ~(XFS_ALL_QUOTA_ACCT); | |
325 | ||
326 | sbflags = 0; | |
327 | ||
328 | if (flags == 0) { | |
8221112b DC |
329 | xfs_debug(mp, "%s: zero flags, m_qflags=%x\n", |
330 | __func__, mp->m_qflags); | |
1da177e4 LT |
331 | return XFS_ERROR(EINVAL); |
332 | } | |
333 | ||
334 | /* No fs can turn on quotas with a delayed effect */ | |
335 | ASSERT((flags & XFS_ALL_QUOTA_ACCT) == 0); | |
336 | ||
337 | /* | |
338 | * Can't enforce without accounting. We check the superblock | |
339 | * qflags here instead of m_qflags because rootfs can have | |
340 | * quota acct on ondisk without m_qflags' knowing. | |
341 | */ | |
342 | if (((flags & XFS_UQUOTA_ACCT) == 0 && | |
343 | (mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) == 0 && | |
344 | (flags & XFS_UQUOTA_ENFD)) | |
345 | || | |
c8ad20ff NS |
346 | ((flags & XFS_PQUOTA_ACCT) == 0 && |
347 | (mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 && | |
424ea91b | 348 | (flags & XFS_GQUOTA_ACCT) == 0 && |
1da177e4 | 349 | (mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 && |
c8ad20ff | 350 | (flags & XFS_OQUOTA_ENFD))) { |
8221112b DC |
351 | xfs_debug(mp, |
352 | "%s: Can't enforce without acct, flags=%x sbflags=%x\n", | |
353 | __func__, flags, mp->m_sb.sb_qflags); | |
1da177e4 LT |
354 | return XFS_ERROR(EINVAL); |
355 | } | |
356 | /* | |
25985edc | 357 | * If everything's up to-date incore, then don't waste time. |
1da177e4 LT |
358 | */ |
359 | if ((mp->m_qflags & flags) == flags) | |
360 | return XFS_ERROR(EEXIST); | |
361 | ||
362 | /* | |
363 | * Change sb_qflags on disk but not incore mp->qflags | |
364 | * if this is the root filesystem. | |
365 | */ | |
3685c2a1 | 366 | spin_lock(&mp->m_sb_lock); |
1da177e4 LT |
367 | qf = mp->m_sb.sb_qflags; |
368 | mp->m_sb.sb_qflags = qf | flags; | |
3685c2a1 | 369 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
370 | |
371 | /* | |
372 | * There's nothing to change if it's the same. | |
373 | */ | |
374 | if ((qf & flags) == flags && sbflags == 0) | |
375 | return XFS_ERROR(EEXIST); | |
376 | sbflags |= XFS_SB_QFLAGS; | |
377 | ||
378 | if ((error = xfs_qm_write_sb_changes(mp, sbflags))) | |
379 | return (error); | |
380 | /* | |
381 | * If we aren't trying to switch on quota enforcement, we are done. | |
382 | */ | |
383 | if (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) != | |
384 | (mp->m_qflags & XFS_UQUOTA_ACCT)) || | |
c8ad20ff NS |
385 | ((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) != |
386 | (mp->m_qflags & XFS_PQUOTA_ACCT)) || | |
387 | ((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) != | |
388 | (mp->m_qflags & XFS_GQUOTA_ACCT)) || | |
1da177e4 LT |
389 | (flags & XFS_ALL_QUOTA_ENFD) == 0) |
390 | return (0); | |
391 | ||
392 | if (! XFS_IS_QUOTA_RUNNING(mp)) | |
393 | return XFS_ERROR(ESRCH); | |
394 | ||
395 | /* | |
396 | * Switch on quota enforcement in core. | |
397 | */ | |
8a7b8a89 | 398 | mutex_lock(&mp->m_quotainfo->qi_quotaofflock); |
1da177e4 | 399 | mp->m_qflags |= (flags & XFS_ALL_QUOTA_ENFD); |
8a7b8a89 | 400 | mutex_unlock(&mp->m_quotainfo->qi_quotaofflock); |
1da177e4 LT |
401 | |
402 | return (0); | |
403 | } | |
404 | ||
405 | ||
1da177e4 LT |
406 | /* |
407 | * Return quota status information, such as uquota-off, enforcements, etc. | |
408 | */ | |
fcafb71b | 409 | int |
1da177e4 | 410 | xfs_qm_scall_getqstat( |
8a7b8a89 CH |
411 | struct xfs_mount *mp, |
412 | struct fs_quota_stat *out) | |
1da177e4 | 413 | { |
8a7b8a89 CH |
414 | struct xfs_quotainfo *q = mp->m_quotainfo; |
415 | struct xfs_inode *uip, *gip; | |
416 | boolean_t tempuqip, tempgqip; | |
1da177e4 LT |
417 | |
418 | uip = gip = NULL; | |
419 | tempuqip = tempgqip = B_FALSE; | |
420 | memset(out, 0, sizeof(fs_quota_stat_t)); | |
421 | ||
422 | out->qs_version = FS_QSTAT_VERSION; | |
62118709 | 423 | if (!xfs_sb_version_hasquota(&mp->m_sb)) { |
1da177e4 LT |
424 | out->qs_uquota.qfs_ino = NULLFSINO; |
425 | out->qs_gquota.qfs_ino = NULLFSINO; | |
426 | return (0); | |
427 | } | |
428 | out->qs_flags = (__uint16_t) xfs_qm_export_flags(mp->m_qflags & | |
429 | (XFS_ALL_QUOTA_ACCT| | |
430 | XFS_ALL_QUOTA_ENFD)); | |
431 | out->qs_pad = 0; | |
432 | out->qs_uquota.qfs_ino = mp->m_sb.sb_uquotino; | |
433 | out->qs_gquota.qfs_ino = mp->m_sb.sb_gquotino; | |
434 | ||
8a7b8a89 CH |
435 | if (q) { |
436 | uip = q->qi_uquotaip; | |
437 | gip = q->qi_gquotaip; | |
1da177e4 LT |
438 | } |
439 | if (!uip && mp->m_sb.sb_uquotino != NULLFSINO) { | |
440 | if (xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, | |
7b6259e7 | 441 | 0, 0, &uip) == 0) |
1da177e4 LT |
442 | tempuqip = B_TRUE; |
443 | } | |
444 | if (!gip && mp->m_sb.sb_gquotino != NULLFSINO) { | |
445 | if (xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, | |
7b6259e7 | 446 | 0, 0, &gip) == 0) |
1da177e4 LT |
447 | tempgqip = B_TRUE; |
448 | } | |
449 | if (uip) { | |
450 | out->qs_uquota.qfs_nblks = uip->i_d.di_nblocks; | |
451 | out->qs_uquota.qfs_nextents = uip->i_d.di_nextents; | |
452 | if (tempuqip) | |
43355099 | 453 | IRELE(uip); |
1da177e4 LT |
454 | } |
455 | if (gip) { | |
456 | out->qs_gquota.qfs_nblks = gip->i_d.di_nblocks; | |
457 | out->qs_gquota.qfs_nextents = gip->i_d.di_nextents; | |
458 | if (tempgqip) | |
43355099 | 459 | IRELE(gip); |
1da177e4 | 460 | } |
8a7b8a89 CH |
461 | if (q) { |
462 | out->qs_incoredqs = q->qi_dquots; | |
463 | out->qs_btimelimit = q->qi_btimelimit; | |
464 | out->qs_itimelimit = q->qi_itimelimit; | |
465 | out->qs_rtbtimelimit = q->qi_rtbtimelimit; | |
466 | out->qs_bwarnlimit = q->qi_bwarnlimit; | |
467 | out->qs_iwarnlimit = q->qi_iwarnlimit; | |
1da177e4 | 468 | } |
8a7b8a89 | 469 | return 0; |
1da177e4 LT |
470 | } |
471 | ||
c472b432 CH |
472 | #define XFS_DQ_MASK \ |
473 | (FS_DQ_LIMIT_MASK | FS_DQ_TIMER_MASK | FS_DQ_WARNS_MASK) | |
474 | ||
1da177e4 LT |
475 | /* |
476 | * Adjust quota limits, and start/stop timers accordingly. | |
477 | */ | |
fcafb71b | 478 | int |
1da177e4 LT |
479 | xfs_qm_scall_setqlim( |
480 | xfs_mount_t *mp, | |
481 | xfs_dqid_t id, | |
482 | uint type, | |
483 | fs_disk_quota_t *newlim) | |
484 | { | |
8a7b8a89 | 485 | struct xfs_quotainfo *q = mp->m_quotainfo; |
1da177e4 LT |
486 | xfs_disk_dquot_t *ddq; |
487 | xfs_dquot_t *dqp; | |
488 | xfs_trans_t *tp; | |
489 | int error; | |
490 | xfs_qcnt_t hard, soft; | |
491 | ||
c472b432 CH |
492 | if (newlim->d_fieldmask & ~XFS_DQ_MASK) |
493 | return EINVAL; | |
494 | if ((newlim->d_fieldmask & XFS_DQ_MASK) == 0) | |
495 | return 0; | |
1da177e4 LT |
496 | |
497 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SETQLIM); | |
498 | if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_disk_dquot_t) + 128, | |
499 | 0, 0, XFS_DEFAULT_LOG_COUNT))) { | |
500 | xfs_trans_cancel(tp, 0); | |
501 | return (error); | |
502 | } | |
503 | ||
504 | /* | |
505 | * We don't want to race with a quotaoff so take the quotaoff lock. | |
506 | * (We don't hold an inode lock, so there's nothing else to stop | |
507 | * a quotaoff from happening). (XXXThis doesn't currently happen | |
508 | * because we take the vfslock before calling xfs_qm_sysent). | |
509 | */ | |
8a7b8a89 | 510 | mutex_lock(&q->qi_quotaofflock); |
1da177e4 LT |
511 | |
512 | /* | |
513 | * Get the dquot (locked), and join it to the transaction. | |
514 | * Allocate the dquot if this doesn't exist. | |
515 | */ | |
516 | if ((error = xfs_qm_dqget(mp, NULL, id, type, XFS_QMOPT_DQALLOC, &dqp))) { | |
517 | xfs_trans_cancel(tp, XFS_TRANS_ABORT); | |
1da177e4 | 518 | ASSERT(error != ENOENT); |
8a7b8a89 | 519 | goto out_unlock; |
1da177e4 | 520 | } |
1da177e4 LT |
521 | xfs_trans_dqjoin(tp, dqp); |
522 | ddq = &dqp->q_core; | |
523 | ||
524 | /* | |
525 | * Make sure that hardlimits are >= soft limits before changing. | |
526 | */ | |
527 | hard = (newlim->d_fieldmask & FS_DQ_BHARD) ? | |
528 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_hardlimit) : | |
1149d96a | 529 | be64_to_cpu(ddq->d_blk_hardlimit); |
1da177e4 LT |
530 | soft = (newlim->d_fieldmask & FS_DQ_BSOFT) ? |
531 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_softlimit) : | |
1149d96a | 532 | be64_to_cpu(ddq->d_blk_softlimit); |
1da177e4 | 533 | if (hard == 0 || hard >= soft) { |
1149d96a CH |
534 | ddq->d_blk_hardlimit = cpu_to_be64(hard); |
535 | ddq->d_blk_softlimit = cpu_to_be64(soft); | |
1da177e4 | 536 | if (id == 0) { |
8a7b8a89 CH |
537 | q->qi_bhardlimit = hard; |
538 | q->qi_bsoftlimit = soft; | |
1da177e4 LT |
539 | } |
540 | } else { | |
8221112b | 541 | xfs_debug(mp, "blkhard %Ld < blksoft %Ld\n", hard, soft); |
1da177e4 LT |
542 | } |
543 | hard = (newlim->d_fieldmask & FS_DQ_RTBHARD) ? | |
544 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_hardlimit) : | |
1149d96a | 545 | be64_to_cpu(ddq->d_rtb_hardlimit); |
1da177e4 LT |
546 | soft = (newlim->d_fieldmask & FS_DQ_RTBSOFT) ? |
547 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_softlimit) : | |
1149d96a | 548 | be64_to_cpu(ddq->d_rtb_softlimit); |
1da177e4 | 549 | if (hard == 0 || hard >= soft) { |
1149d96a CH |
550 | ddq->d_rtb_hardlimit = cpu_to_be64(hard); |
551 | ddq->d_rtb_softlimit = cpu_to_be64(soft); | |
1da177e4 | 552 | if (id == 0) { |
8a7b8a89 CH |
553 | q->qi_rtbhardlimit = hard; |
554 | q->qi_rtbsoftlimit = soft; | |
1da177e4 LT |
555 | } |
556 | } else { | |
8221112b | 557 | xfs_debug(mp, "rtbhard %Ld < rtbsoft %Ld\n", hard, soft); |
1da177e4 LT |
558 | } |
559 | ||
560 | hard = (newlim->d_fieldmask & FS_DQ_IHARD) ? | |
561 | (xfs_qcnt_t) newlim->d_ino_hardlimit : | |
1149d96a | 562 | be64_to_cpu(ddq->d_ino_hardlimit); |
1da177e4 LT |
563 | soft = (newlim->d_fieldmask & FS_DQ_ISOFT) ? |
564 | (xfs_qcnt_t) newlim->d_ino_softlimit : | |
1149d96a | 565 | be64_to_cpu(ddq->d_ino_softlimit); |
1da177e4 | 566 | if (hard == 0 || hard >= soft) { |
1149d96a CH |
567 | ddq->d_ino_hardlimit = cpu_to_be64(hard); |
568 | ddq->d_ino_softlimit = cpu_to_be64(soft); | |
1da177e4 | 569 | if (id == 0) { |
8a7b8a89 CH |
570 | q->qi_ihardlimit = hard; |
571 | q->qi_isoftlimit = soft; | |
1da177e4 LT |
572 | } |
573 | } else { | |
8221112b | 574 | xfs_debug(mp, "ihard %Ld < isoft %Ld\n", hard, soft); |
1da177e4 LT |
575 | } |
576 | ||
754002b4 NS |
577 | /* |
578 | * Update warnings counter(s) if requested | |
579 | */ | |
580 | if (newlim->d_fieldmask & FS_DQ_BWARNS) | |
1149d96a | 581 | ddq->d_bwarns = cpu_to_be16(newlim->d_bwarns); |
754002b4 | 582 | if (newlim->d_fieldmask & FS_DQ_IWARNS) |
1149d96a | 583 | ddq->d_iwarns = cpu_to_be16(newlim->d_iwarns); |
754002b4 | 584 | if (newlim->d_fieldmask & FS_DQ_RTBWARNS) |
1149d96a | 585 | ddq->d_rtbwarns = cpu_to_be16(newlim->d_rtbwarns); |
754002b4 | 586 | |
1da177e4 LT |
587 | if (id == 0) { |
588 | /* | |
589 | * Timelimits for the super user set the relative time | |
590 | * the other users can be over quota for this file system. | |
591 | * If it is zero a default is used. Ditto for the default | |
754002b4 NS |
592 | * soft and hard limit values (already done, above), and |
593 | * for warnings. | |
1da177e4 LT |
594 | */ |
595 | if (newlim->d_fieldmask & FS_DQ_BTIMER) { | |
8a7b8a89 | 596 | q->qi_btimelimit = newlim->d_btimer; |
1149d96a | 597 | ddq->d_btimer = cpu_to_be32(newlim->d_btimer); |
1da177e4 LT |
598 | } |
599 | if (newlim->d_fieldmask & FS_DQ_ITIMER) { | |
8a7b8a89 | 600 | q->qi_itimelimit = newlim->d_itimer; |
1149d96a | 601 | ddq->d_itimer = cpu_to_be32(newlim->d_itimer); |
1da177e4 LT |
602 | } |
603 | if (newlim->d_fieldmask & FS_DQ_RTBTIMER) { | |
8a7b8a89 | 604 | q->qi_rtbtimelimit = newlim->d_rtbtimer; |
1149d96a | 605 | ddq->d_rtbtimer = cpu_to_be32(newlim->d_rtbtimer); |
1da177e4 | 606 | } |
754002b4 | 607 | if (newlim->d_fieldmask & FS_DQ_BWARNS) |
8a7b8a89 | 608 | q->qi_bwarnlimit = newlim->d_bwarns; |
754002b4 | 609 | if (newlim->d_fieldmask & FS_DQ_IWARNS) |
8a7b8a89 | 610 | q->qi_iwarnlimit = newlim->d_iwarns; |
754002b4 | 611 | if (newlim->d_fieldmask & FS_DQ_RTBWARNS) |
8a7b8a89 | 612 | q->qi_rtbwarnlimit = newlim->d_rtbwarns; |
754002b4 | 613 | } else { |
1da177e4 LT |
614 | /* |
615 | * If the user is now over quota, start the timelimit. | |
616 | * The user will not be 'warned'. | |
617 | * Note that we keep the timers ticking, whether enforcement | |
618 | * is on or off. We don't really want to bother with iterating | |
619 | * over all ondisk dquots and turning the timers on/off. | |
620 | */ | |
621 | xfs_qm_adjust_dqtimers(mp, ddq); | |
622 | } | |
623 | dqp->dq_flags |= XFS_DQ_DIRTY; | |
624 | xfs_trans_log_dquot(tp, dqp); | |
625 | ||
e5720eec | 626 | error = xfs_trans_commit(tp, 0); |
1da177e4 LT |
627 | xfs_qm_dqprint(dqp); |
628 | xfs_qm_dqrele(dqp); | |
1da177e4 | 629 | |
8a7b8a89 CH |
630 | out_unlock: |
631 | mutex_unlock(&q->qi_quotaofflock); | |
e5720eec | 632 | return error; |
1da177e4 LT |
633 | } |
634 | ||
fcafb71b | 635 | int |
1da177e4 LT |
636 | xfs_qm_scall_getquota( |
637 | xfs_mount_t *mp, | |
638 | xfs_dqid_t id, | |
639 | uint type, | |
640 | fs_disk_quota_t *out) | |
641 | { | |
642 | xfs_dquot_t *dqp; | |
643 | int error; | |
644 | ||
645 | /* | |
646 | * Try to get the dquot. We don't want it allocated on disk, so | |
647 | * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't | |
648 | * exist, we'll get ENOENT back. | |
649 | */ | |
650 | if ((error = xfs_qm_dqget(mp, NULL, id, type, 0, &dqp))) { | |
651 | return (error); | |
652 | } | |
653 | ||
1da177e4 LT |
654 | /* |
655 | * If everything's NULL, this dquot doesn't quite exist as far as | |
656 | * our utility programs are concerned. | |
657 | */ | |
658 | if (XFS_IS_DQUOT_UNINITIALIZED(dqp)) { | |
659 | xfs_qm_dqput(dqp); | |
660 | return XFS_ERROR(ENOENT); | |
661 | } | |
662 | /* xfs_qm_dqprint(dqp); */ | |
663 | /* | |
664 | * Convert the disk dquot to the exportable format | |
665 | */ | |
666 | xfs_qm_export_dquot(mp, &dqp->q_core, out); | |
667 | xfs_qm_dqput(dqp); | |
668 | return (error ? XFS_ERROR(EFAULT) : 0); | |
669 | } | |
670 | ||
671 | ||
672 | STATIC int | |
673 | xfs_qm_log_quotaoff_end( | |
674 | xfs_mount_t *mp, | |
675 | xfs_qoff_logitem_t *startqoff, | |
676 | uint flags) | |
677 | { | |
c8ad20ff | 678 | xfs_trans_t *tp; |
1da177e4 | 679 | int error; |
c8ad20ff | 680 | xfs_qoff_logitem_t *qoffi; |
1da177e4 LT |
681 | |
682 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF_END); | |
683 | ||
684 | if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_qoff_logitem_t) * 2, | |
685 | 0, 0, XFS_DEFAULT_LOG_COUNT))) { | |
686 | xfs_trans_cancel(tp, 0); | |
687 | return (error); | |
688 | } | |
689 | ||
690 | qoffi = xfs_trans_get_qoff_item(tp, startqoff, | |
691 | flags & XFS_ALL_QUOTA_ACCT); | |
692 | xfs_trans_log_quotaoff_item(tp, qoffi); | |
693 | ||
694 | /* | |
695 | * We have to make sure that the transaction is secure on disk before we | |
696 | * return and actually stop quota accounting. So, make it synchronous. | |
697 | * We don't care about quotoff's performance. | |
698 | */ | |
699 | xfs_trans_set_sync(tp); | |
1c72bf90 | 700 | error = xfs_trans_commit(tp, 0); |
1da177e4 LT |
701 | return (error); |
702 | } | |
703 | ||
704 | ||
705 | STATIC int | |
706 | xfs_qm_log_quotaoff( | |
707 | xfs_mount_t *mp, | |
708 | xfs_qoff_logitem_t **qoffstartp, | |
709 | uint flags) | |
710 | { | |
711 | xfs_trans_t *tp; | |
712 | int error; | |
1da177e4 LT |
713 | xfs_qoff_logitem_t *qoffi=NULL; |
714 | uint oldsbqflag=0; | |
715 | ||
716 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF); | |
717 | if ((error = xfs_trans_reserve(tp, 0, | |
718 | sizeof(xfs_qoff_logitem_t) * 2 + | |
719 | mp->m_sb.sb_sectsize + 128, | |
720 | 0, | |
721 | 0, | |
722 | XFS_DEFAULT_LOG_COUNT))) { | |
723 | goto error0; | |
724 | } | |
725 | ||
726 | qoffi = xfs_trans_get_qoff_item(tp, NULL, flags & XFS_ALL_QUOTA_ACCT); | |
727 | xfs_trans_log_quotaoff_item(tp, qoffi); | |
728 | ||
3685c2a1 | 729 | spin_lock(&mp->m_sb_lock); |
1da177e4 LT |
730 | oldsbqflag = mp->m_sb.sb_qflags; |
731 | mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL; | |
3685c2a1 | 732 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
733 | |
734 | xfs_mod_sb(tp, XFS_SB_QFLAGS); | |
735 | ||
736 | /* | |
737 | * We have to make sure that the transaction is secure on disk before we | |
738 | * return and actually stop quota accounting. So, make it synchronous. | |
739 | * We don't care about quotoff's performance. | |
740 | */ | |
741 | xfs_trans_set_sync(tp); | |
1c72bf90 | 742 | error = xfs_trans_commit(tp, 0); |
1da177e4 LT |
743 | |
744 | error0: | |
745 | if (error) { | |
746 | xfs_trans_cancel(tp, 0); | |
747 | /* | |
748 | * No one else is modifying sb_qflags, so this is OK. | |
749 | * We still hold the quotaofflock. | |
750 | */ | |
3685c2a1 | 751 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 752 | mp->m_sb.sb_qflags = oldsbqflag; |
3685c2a1 | 753 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
754 | } |
755 | *qoffstartp = qoffi; | |
756 | return (error); | |
757 | } | |
758 | ||
759 | ||
760 | /* | |
761 | * Translate an internal style on-disk-dquot to the exportable format. | |
762 | * The main differences are that the counters/limits are all in Basic | |
763 | * Blocks (BBs) instead of the internal FSBs, and all on-disk data has | |
764 | * to be converted to the native endianness. | |
765 | */ | |
766 | STATIC void | |
767 | xfs_qm_export_dquot( | |
768 | xfs_mount_t *mp, | |
769 | xfs_disk_dquot_t *src, | |
770 | struct fs_disk_quota *dst) | |
771 | { | |
772 | memset(dst, 0, sizeof(*dst)); | |
773 | dst->d_version = FS_DQUOT_VERSION; /* different from src->d_version */ | |
1149d96a CH |
774 | dst->d_flags = xfs_qm_export_qtype_flags(src->d_flags); |
775 | dst->d_id = be32_to_cpu(src->d_id); | |
776 | dst->d_blk_hardlimit = | |
777 | XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_blk_hardlimit)); | |
778 | dst->d_blk_softlimit = | |
779 | XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_blk_softlimit)); | |
780 | dst->d_ino_hardlimit = be64_to_cpu(src->d_ino_hardlimit); | |
781 | dst->d_ino_softlimit = be64_to_cpu(src->d_ino_softlimit); | |
782 | dst->d_bcount = XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_bcount)); | |
783 | dst->d_icount = be64_to_cpu(src->d_icount); | |
784 | dst->d_btimer = be32_to_cpu(src->d_btimer); | |
785 | dst->d_itimer = be32_to_cpu(src->d_itimer); | |
786 | dst->d_iwarns = be16_to_cpu(src->d_iwarns); | |
787 | dst->d_bwarns = be16_to_cpu(src->d_bwarns); | |
788 | dst->d_rtb_hardlimit = | |
789 | XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtb_hardlimit)); | |
790 | dst->d_rtb_softlimit = | |
791 | XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtb_softlimit)); | |
792 | dst->d_rtbcount = XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtbcount)); | |
793 | dst->d_rtbtimer = be32_to_cpu(src->d_rtbtimer); | |
794 | dst->d_rtbwarns = be16_to_cpu(src->d_rtbwarns); | |
1da177e4 LT |
795 | |
796 | /* | |
797 | * Internally, we don't reset all the timers when quota enforcement | |
c41564b5 | 798 | * gets turned off. No need to confuse the user level code, |
1da177e4 LT |
799 | * so return zeroes in that case. |
800 | */ | |
e6d29426 KO |
801 | if ((!XFS_IS_UQUOTA_ENFORCED(mp) && src->d_flags == XFS_DQ_USER) || |
802 | (!XFS_IS_OQUOTA_ENFORCED(mp) && | |
803 | (src->d_flags & (XFS_DQ_PROJ | XFS_DQ_GROUP)))) { | |
1da177e4 LT |
804 | dst->d_btimer = 0; |
805 | dst->d_itimer = 0; | |
806 | dst->d_rtbtimer = 0; | |
807 | } | |
808 | ||
809 | #ifdef DEBUG | |
ade7ce31 | 810 | if (((XFS_IS_UQUOTA_ENFORCED(mp) && dst->d_flags == FS_USER_QUOTA) || |
e6d29426 | 811 | (XFS_IS_OQUOTA_ENFORCED(mp) && |
ade7ce31 | 812 | (dst->d_flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)))) && |
e6d29426 | 813 | dst->d_id != 0) { |
1da177e4 LT |
814 | if (((int) dst->d_bcount >= (int) dst->d_blk_softlimit) && |
815 | (dst->d_blk_softlimit > 0)) { | |
816 | ASSERT(dst->d_btimer != 0); | |
817 | } | |
818 | if (((int) dst->d_icount >= (int) dst->d_ino_softlimit) && | |
819 | (dst->d_ino_softlimit > 0)) { | |
820 | ASSERT(dst->d_itimer != 0); | |
821 | } | |
822 | } | |
823 | #endif | |
824 | } | |
825 | ||
1da177e4 LT |
826 | STATIC uint |
827 | xfs_qm_export_qtype_flags( | |
828 | uint flags) | |
829 | { | |
830 | /* | |
c8ad20ff | 831 | * Can't be more than one, or none. |
1da177e4 | 832 | */ |
ade7ce31 CH |
833 | ASSERT((flags & (FS_PROJ_QUOTA | FS_USER_QUOTA)) != |
834 | (FS_PROJ_QUOTA | FS_USER_QUOTA)); | |
835 | ASSERT((flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)) != | |
836 | (FS_PROJ_QUOTA | FS_GROUP_QUOTA)); | |
837 | ASSERT((flags & (FS_USER_QUOTA | FS_GROUP_QUOTA)) != | |
838 | (FS_USER_QUOTA | FS_GROUP_QUOTA)); | |
839 | ASSERT((flags & (FS_PROJ_QUOTA|FS_USER_QUOTA|FS_GROUP_QUOTA)) != 0); | |
1da177e4 LT |
840 | |
841 | return (flags & XFS_DQ_USER) ? | |
ade7ce31 CH |
842 | FS_USER_QUOTA : (flags & XFS_DQ_PROJ) ? |
843 | FS_PROJ_QUOTA : FS_GROUP_QUOTA; | |
1da177e4 LT |
844 | } |
845 | ||
1da177e4 LT |
846 | STATIC uint |
847 | xfs_qm_export_flags( | |
848 | uint flags) | |
849 | { | |
850 | uint uflags; | |
851 | ||
852 | uflags = 0; | |
853 | if (flags & XFS_UQUOTA_ACCT) | |
ade7ce31 | 854 | uflags |= FS_QUOTA_UDQ_ACCT; |
c8ad20ff | 855 | if (flags & XFS_PQUOTA_ACCT) |
ade7ce31 | 856 | uflags |= FS_QUOTA_PDQ_ACCT; |
1da177e4 | 857 | if (flags & XFS_GQUOTA_ACCT) |
ade7ce31 | 858 | uflags |= FS_QUOTA_GDQ_ACCT; |
1da177e4 | 859 | if (flags & XFS_UQUOTA_ENFD) |
ade7ce31 | 860 | uflags |= FS_QUOTA_UDQ_ENFD; |
c8ad20ff NS |
861 | if (flags & (XFS_OQUOTA_ENFD)) { |
862 | uflags |= (flags & XFS_GQUOTA_ACCT) ? | |
ade7ce31 | 863 | FS_QUOTA_GDQ_ENFD : FS_QUOTA_PDQ_ENFD; |
c8ad20ff | 864 | } |
1da177e4 LT |
865 | return (uflags); |
866 | } | |
867 | ||
868 | ||
fe588ed3 CH |
869 | STATIC int |
870 | xfs_dqrele_inode( | |
871 | struct xfs_inode *ip, | |
872 | struct xfs_perag *pag, | |
873 | int flags) | |
1da177e4 | 874 | { |
fe588ed3 | 875 | /* skip quota inodes */ |
8a7b8a89 CH |
876 | if (ip == ip->i_mount->m_quotainfo->qi_uquotaip || |
877 | ip == ip->i_mount->m_quotainfo->qi_gquotaip) { | |
fe588ed3 CH |
878 | ASSERT(ip->i_udquot == NULL); |
879 | ASSERT(ip->i_gdquot == NULL); | |
fe588ed3 CH |
880 | return 0; |
881 | } | |
cb4f0d1d | 882 | |
fe588ed3 CH |
883 | xfs_ilock(ip, XFS_ILOCK_EXCL); |
884 | if ((flags & XFS_UQUOTA_ACCT) && ip->i_udquot) { | |
885 | xfs_qm_dqrele(ip->i_udquot); | |
886 | ip->i_udquot = NULL; | |
887 | } | |
888 | if (flags & (XFS_PQUOTA_ACCT|XFS_GQUOTA_ACCT) && ip->i_gdquot) { | |
889 | xfs_qm_dqrele(ip->i_gdquot); | |
890 | ip->i_gdquot = NULL; | |
891 | } | |
f2d67614 | 892 | xfs_iunlock(ip, XFS_ILOCK_EXCL); |
fe588ed3 | 893 | return 0; |
5b4d89ae DC |
894 | } |
895 | ||
fe588ed3 | 896 | |
5b4d89ae DC |
897 | /* |
898 | * Go thru all the inodes in the file system, releasing their dquots. | |
fe588ed3 | 899 | * |
5b4d89ae | 900 | * Note that the mount structure gets modified to indicate that quotas are off |
fe588ed3 | 901 | * AFTER this, in the case of quotaoff. |
5b4d89ae DC |
902 | */ |
903 | void | |
904 | xfs_qm_dqrele_all_inodes( | |
905 | struct xfs_mount *mp, | |
906 | uint flags) | |
907 | { | |
5b4d89ae | 908 | ASSERT(mp->m_quotainfo); |
65d0f205 | 909 | xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags); |
1da177e4 LT |
910 | } |
911 | ||
912 | /*------------------------------------------------------------------------*/ | |
913 | #ifdef DEBUG | |
914 | /* | |
915 | * This contains all the test functions for XFS disk quotas. | |
916 | * Currently it does a quota accounting check. ie. it walks through | |
917 | * all inodes in the file system, calculating the dquot accounting fields, | |
918 | * and prints out any inconsistencies. | |
919 | */ | |
920 | xfs_dqhash_t *qmtest_udqtab; | |
921 | xfs_dqhash_t *qmtest_gdqtab; | |
922 | int qmtest_hashmask; | |
923 | int qmtest_nfails; | |
a0b0b8a5 | 924 | struct mutex qcheck_lock; |
1da177e4 LT |
925 | |
926 | #define DQTEST_HASHVAL(mp, id) (((__psunsigned_t)(mp) + \ | |
927 | (__psunsigned_t)(id)) & \ | |
928 | (qmtest_hashmask - 1)) | |
929 | ||
930 | #define DQTEST_HASH(mp, id, type) ((type & XFS_DQ_USER) ? \ | |
931 | (qmtest_udqtab + \ | |
932 | DQTEST_HASHVAL(mp, id)) : \ | |
933 | (qmtest_gdqtab + \ | |
934 | DQTEST_HASHVAL(mp, id))) | |
935 | ||
936 | #define DQTEST_LIST_PRINT(l, NXT, title) \ | |
937 | { \ | |
938 | xfs_dqtest_t *dqp; int i = 0;\ | |
0b932ccc | 939 | xfs_debug(NULL, "%s (#%d)", title, (int) (l)->qh_nelems); \ |
1da177e4 LT |
940 | for (dqp = (xfs_dqtest_t *)(l)->qh_next; dqp != NULL; \ |
941 | dqp = (xfs_dqtest_t *)dqp->NXT) { \ | |
0b932ccc DC |
942 | xfs_debug(dqp->q_mount, \ |
943 | " %d. \"%d (%s)\" bcnt = %d, icnt = %d", \ | |
1da177e4 LT |
944 | ++i, dqp->d_id, DQFLAGTO_TYPESTR(dqp), \ |
945 | dqp->d_bcount, dqp->d_icount); } \ | |
946 | } | |
947 | ||
948 | typedef struct dqtest { | |
74457cf4 | 949 | uint dq_flags; /* various flags (XFS_DQ_*) */ |
e6a81f13 | 950 | struct list_head q_hashlist; |
1da177e4 LT |
951 | xfs_dqhash_t *q_hash; /* the hashchain header */ |
952 | xfs_mount_t *q_mount; /* filesystem this relates to */ | |
953 | xfs_dqid_t d_id; /* user id or group id */ | |
954 | xfs_qcnt_t d_bcount; /* # disk blocks owned by the user */ | |
955 | xfs_qcnt_t d_icount; /* # inodes owned by the user */ | |
956 | } xfs_dqtest_t; | |
957 | ||
958 | STATIC void | |
959 | xfs_qm_hashinsert(xfs_dqhash_t *h, xfs_dqtest_t *dqp) | |
960 | { | |
e6a81f13 DC |
961 | list_add(&dqp->q_hashlist, &h->qh_list); |
962 | h->qh_version++; | |
963 | h->qh_nelems++; | |
1da177e4 LT |
964 | } |
965 | STATIC void | |
966 | xfs_qm_dqtest_print( | |
0b932ccc DC |
967 | struct xfs_mount *mp, |
968 | struct dqtest *d) | |
1da177e4 | 969 | { |
0b932ccc DC |
970 | xfs_debug(mp, "-----------DQTEST DQUOT----------------"); |
971 | xfs_debug(mp, "---- dquot ID = %d", d->d_id); | |
972 | xfs_debug(mp, "---- fs = 0x%p", d->q_mount); | |
973 | xfs_debug(mp, "---- bcount = %Lu (0x%x)", | |
1da177e4 | 974 | d->d_bcount, (int)d->d_bcount); |
0b932ccc | 975 | xfs_debug(mp, "---- icount = %Lu (0x%x)", |
1da177e4 | 976 | d->d_icount, (int)d->d_icount); |
0b932ccc | 977 | xfs_debug(mp, "---------------------------"); |
1da177e4 LT |
978 | } |
979 | ||
980 | STATIC void | |
981 | xfs_qm_dqtest_failed( | |
982 | xfs_dqtest_t *d, | |
983 | xfs_dquot_t *dqp, | |
984 | char *reason, | |
985 | xfs_qcnt_t a, | |
986 | xfs_qcnt_t b, | |
987 | int error) | |
988 | { | |
989 | qmtest_nfails++; | |
990 | if (error) | |
0b932ccc DC |
991 | xfs_debug(dqp->q_mount, |
992 | "quotacheck failed id=%d, err=%d\nreason: %s", | |
993 | d->d_id, error, reason); | |
1da177e4 | 994 | else |
0b932ccc DC |
995 | xfs_debug(dqp->q_mount, |
996 | "quotacheck failed id=%d (%s) [%d != %d]", | |
997 | d->d_id, reason, (int)a, (int)b); | |
998 | xfs_qm_dqtest_print(dqp->q_mount, d); | |
1da177e4 LT |
999 | if (dqp) |
1000 | xfs_qm_dqprint(dqp); | |
1001 | } | |
1002 | ||
1003 | STATIC int | |
1004 | xfs_dqtest_cmp2( | |
1005 | xfs_dqtest_t *d, | |
1006 | xfs_dquot_t *dqp) | |
1007 | { | |
1008 | int err = 0; | |
1149d96a | 1009 | if (be64_to_cpu(dqp->q_core.d_icount) != d->d_icount) { |
1da177e4 | 1010 | xfs_qm_dqtest_failed(d, dqp, "icount mismatch", |
1149d96a | 1011 | be64_to_cpu(dqp->q_core.d_icount), |
1da177e4 LT |
1012 | d->d_icount, 0); |
1013 | err++; | |
1014 | } | |
1149d96a | 1015 | if (be64_to_cpu(dqp->q_core.d_bcount) != d->d_bcount) { |
1da177e4 | 1016 | xfs_qm_dqtest_failed(d, dqp, "bcount mismatch", |
1149d96a | 1017 | be64_to_cpu(dqp->q_core.d_bcount), |
1da177e4 LT |
1018 | d->d_bcount, 0); |
1019 | err++; | |
1020 | } | |
1149d96a CH |
1021 | if (dqp->q_core.d_blk_softlimit && |
1022 | be64_to_cpu(dqp->q_core.d_bcount) >= | |
1023 | be64_to_cpu(dqp->q_core.d_blk_softlimit)) { | |
1da177e4 | 1024 | if (!dqp->q_core.d_btimer && dqp->q_core.d_id) { |
0b932ccc DC |
1025 | xfs_debug(dqp->q_mount, |
1026 | "%d [%s] BLK TIMER NOT STARTED", | |
1027 | d->d_id, DQFLAGTO_TYPESTR(d)); | |
1da177e4 LT |
1028 | err++; |
1029 | } | |
1030 | } | |
1149d96a CH |
1031 | if (dqp->q_core.d_ino_softlimit && |
1032 | be64_to_cpu(dqp->q_core.d_icount) >= | |
1033 | be64_to_cpu(dqp->q_core.d_ino_softlimit)) { | |
1da177e4 | 1034 | if (!dqp->q_core.d_itimer && dqp->q_core.d_id) { |
0b932ccc DC |
1035 | xfs_debug(dqp->q_mount, |
1036 | "%d [%s] INO TIMER NOT STARTED", | |
1037 | d->d_id, DQFLAGTO_TYPESTR(d)); | |
1da177e4 LT |
1038 | err++; |
1039 | } | |
1040 | } | |
1041 | #ifdef QUOTADEBUG | |
1042 | if (!err) { | |
0b932ccc DC |
1043 | xfs_debug(dqp->q_mount, "%d [%s] qchecked", |
1044 | d->d_id, DQFLAGTO_TYPESTR(d)); | |
1da177e4 LT |
1045 | } |
1046 | #endif | |
1047 | return (err); | |
1048 | } | |
1049 | ||
1050 | STATIC void | |
1051 | xfs_dqtest_cmp( | |
1052 | xfs_dqtest_t *d) | |
1053 | { | |
1054 | xfs_dquot_t *dqp; | |
1055 | int error; | |
1056 | ||
1057 | /* xfs_qm_dqtest_print(d); */ | |
1058 | if ((error = xfs_qm_dqget(d->q_mount, NULL, d->d_id, d->dq_flags, 0, | |
1059 | &dqp))) { | |
1060 | xfs_qm_dqtest_failed(d, NULL, "dqget failed", 0, 0, error); | |
1061 | return; | |
1062 | } | |
1063 | xfs_dqtest_cmp2(d, dqp); | |
1064 | xfs_qm_dqput(dqp); | |
1065 | } | |
1066 | ||
1067 | STATIC int | |
1068 | xfs_qm_internalqcheck_dqget( | |
1069 | xfs_mount_t *mp, | |
1070 | xfs_dqid_t id, | |
1071 | uint type, | |
1072 | xfs_dqtest_t **O_dq) | |
1073 | { | |
1074 | xfs_dqtest_t *d; | |
1075 | xfs_dqhash_t *h; | |
1076 | ||
1077 | h = DQTEST_HASH(mp, id, type); | |
e6a81f13 | 1078 | list_for_each_entry(d, &h->qh_list, q_hashlist) { |
1da177e4 LT |
1079 | if (d->d_id == id && mp == d->q_mount) { |
1080 | *O_dq = d; | |
1081 | return (0); | |
1082 | } | |
1083 | } | |
1084 | d = kmem_zalloc(sizeof(xfs_dqtest_t), KM_SLEEP); | |
1085 | d->dq_flags = type; | |
1086 | d->d_id = id; | |
1087 | d->q_mount = mp; | |
1088 | d->q_hash = h; | |
e6a81f13 | 1089 | INIT_LIST_HEAD(&d->q_hashlist); |
1da177e4 LT |
1090 | xfs_qm_hashinsert(h, d); |
1091 | *O_dq = d; | |
1092 | return (0); | |
1093 | } | |
1094 | ||
1095 | STATIC void | |
1096 | xfs_qm_internalqcheck_get_dquots( | |
1097 | xfs_mount_t *mp, | |
1098 | xfs_dqid_t uid, | |
c8ad20ff | 1099 | xfs_dqid_t projid, |
1da177e4 LT |
1100 | xfs_dqid_t gid, |
1101 | xfs_dqtest_t **ud, | |
1102 | xfs_dqtest_t **gd) | |
1103 | { | |
1104 | if (XFS_IS_UQUOTA_ON(mp)) | |
1105 | xfs_qm_internalqcheck_dqget(mp, uid, XFS_DQ_USER, ud); | |
1106 | if (XFS_IS_GQUOTA_ON(mp)) | |
1107 | xfs_qm_internalqcheck_dqget(mp, gid, XFS_DQ_GROUP, gd); | |
c8ad20ff NS |
1108 | else if (XFS_IS_PQUOTA_ON(mp)) |
1109 | xfs_qm_internalqcheck_dqget(mp, projid, XFS_DQ_PROJ, gd); | |
1da177e4 LT |
1110 | } |
1111 | ||
1112 | ||
1113 | STATIC void | |
1114 | xfs_qm_internalqcheck_dqadjust( | |
1115 | xfs_inode_t *ip, | |
1116 | xfs_dqtest_t *d) | |
1117 | { | |
1118 | d->d_icount++; | |
1119 | d->d_bcount += (xfs_qcnt_t)ip->i_d.di_nblocks; | |
1120 | } | |
1121 | ||
1122 | STATIC int | |
1123 | xfs_qm_internalqcheck_adjust( | |
1124 | xfs_mount_t *mp, /* mount point for filesystem */ | |
1125 | xfs_ino_t ino, /* inode number to get data for */ | |
1126 | void __user *buffer, /* not used */ | |
1127 | int ubsize, /* not used */ | |
1da177e4 | 1128 | int *ubused, /* not used */ |
1da177e4 LT |
1129 | int *res) /* bulkstat result code */ |
1130 | { | |
1131 | xfs_inode_t *ip; | |
1132 | xfs_dqtest_t *ud, *gd; | |
1133 | uint lock_flags; | |
1134 | boolean_t ipreleased; | |
1135 | int error; | |
1136 | ||
1137 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
1138 | ||
1139 | if (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino) { | |
1140 | *res = BULKSTAT_RV_NOTHING; | |
8221112b DC |
1141 | xfs_debug(mp, "%s: ino=%llu, uqino=%llu, gqino=%llu\n", |
1142 | __func__, (unsigned long long) ino, | |
1da177e4 LT |
1143 | (unsigned long long) mp->m_sb.sb_uquotino, |
1144 | (unsigned long long) mp->m_sb.sb_gquotino); | |
1145 | return XFS_ERROR(EINVAL); | |
1146 | } | |
1147 | ipreleased = B_FALSE; | |
1148 | again: | |
1149 | lock_flags = XFS_ILOCK_SHARED; | |
7b6259e7 | 1150 | if ((error = xfs_iget(mp, NULL, ino, 0, lock_flags, &ip))) { |
1da177e4 LT |
1151 | *res = BULKSTAT_RV_NOTHING; |
1152 | return (error); | |
1153 | } | |
1154 | ||
1da177e4 LT |
1155 | /* |
1156 | * This inode can have blocks after eof which can get released | |
1157 | * when we send it to inactive. Since we don't check the dquot | |
1158 | * until the after all our calculations are done, we must get rid | |
1159 | * of those now. | |
1160 | */ | |
1161 | if (! ipreleased) { | |
f2d67614 CH |
1162 | xfs_iunlock(ip, lock_flags); |
1163 | IRELE(ip); | |
1da177e4 LT |
1164 | ipreleased = B_TRUE; |
1165 | goto again; | |
1166 | } | |
1167 | xfs_qm_internalqcheck_get_dquots(mp, | |
1168 | (xfs_dqid_t) ip->i_d.di_uid, | |
6743099c | 1169 | (xfs_dqid_t) xfs_get_projid(ip), |
1da177e4 LT |
1170 | (xfs_dqid_t) ip->i_d.di_gid, |
1171 | &ud, &gd); | |
1172 | if (XFS_IS_UQUOTA_ON(mp)) { | |
1173 | ASSERT(ud); | |
1174 | xfs_qm_internalqcheck_dqadjust(ip, ud); | |
1175 | } | |
c8ad20ff | 1176 | if (XFS_IS_OQUOTA_ON(mp)) { |
1da177e4 LT |
1177 | ASSERT(gd); |
1178 | xfs_qm_internalqcheck_dqadjust(ip, gd); | |
1179 | } | |
f2d67614 CH |
1180 | xfs_iunlock(ip, lock_flags); |
1181 | IRELE(ip); | |
1da177e4 LT |
1182 | *res = BULKSTAT_RV_DIDONE; |
1183 | return (0); | |
1184 | } | |
1185 | ||
1186 | ||
1187 | /* PRIVATE, debugging */ | |
1188 | int | |
1189 | xfs_qm_internalqcheck( | |
1190 | xfs_mount_t *mp) | |
1191 | { | |
1192 | xfs_ino_t lastino; | |
1193 | int done, count; | |
1194 | int i; | |
1da177e4 LT |
1195 | int error; |
1196 | ||
1197 | lastino = 0; | |
1198 | qmtest_hashmask = 32; | |
1199 | count = 5; | |
1200 | done = 0; | |
1201 | qmtest_nfails = 0; | |
1202 | ||
1203 | if (! XFS_IS_QUOTA_ON(mp)) | |
1204 | return XFS_ERROR(ESRCH); | |
1205 | ||
a14a348b | 1206 | xfs_log_force(mp, XFS_LOG_SYNC); |
1da177e4 | 1207 | XFS_bflush(mp->m_ddev_targp); |
a14a348b | 1208 | xfs_log_force(mp, XFS_LOG_SYNC); |
1da177e4 LT |
1209 | XFS_bflush(mp->m_ddev_targp); |
1210 | ||
794ee1ba | 1211 | mutex_lock(&qcheck_lock); |
1da177e4 LT |
1212 | /* There should be absolutely no quota activity while this |
1213 | is going on. */ | |
1214 | qmtest_udqtab = kmem_zalloc(qmtest_hashmask * | |
1215 | sizeof(xfs_dqhash_t), KM_SLEEP); | |
1216 | qmtest_gdqtab = kmem_zalloc(qmtest_hashmask * | |
1217 | sizeof(xfs_dqhash_t), KM_SLEEP); | |
1218 | do { | |
1219 | /* | |
1220 | * Iterate thru all the inodes in the file system, | |
1221 | * adjusting the corresponding dquot counters | |
1222 | */ | |
7dce11db CH |
1223 | error = xfs_bulkstat(mp, &lastino, &count, |
1224 | xfs_qm_internalqcheck_adjust, | |
1225 | 0, NULL, &done); | |
1226 | if (error) { | |
0b932ccc | 1227 | xfs_debug(mp, "Bulkstat returned error 0x%x", error); |
1da177e4 LT |
1228 | break; |
1229 | } | |
7dce11db CH |
1230 | } while (!done); |
1231 | ||
0b932ccc | 1232 | xfs_debug(mp, "Checking results against system dquots"); |
1da177e4 | 1233 | for (i = 0; i < qmtest_hashmask; i++) { |
e6a81f13 DC |
1234 | xfs_dqtest_t *d, *n; |
1235 | xfs_dqhash_t *h; | |
1236 | ||
1237 | h = &qmtest_udqtab[i]; | |
1238 | list_for_each_entry_safe(d, n, &h->qh_list, q_hashlist) { | |
1da177e4 | 1239 | xfs_dqtest_cmp(d); |
f0e2d93c | 1240 | kmem_free(d); |
1da177e4 | 1241 | } |
e6a81f13 DC |
1242 | h = &qmtest_gdqtab[i]; |
1243 | list_for_each_entry_safe(d, n, &h->qh_list, q_hashlist) { | |
1da177e4 | 1244 | xfs_dqtest_cmp(d); |
f0e2d93c | 1245 | kmem_free(d); |
1da177e4 LT |
1246 | } |
1247 | } | |
1248 | ||
1249 | if (qmtest_nfails) { | |
0b932ccc DC |
1250 | xfs_debug(mp, "******** quotacheck failed ********"); |
1251 | xfs_debug(mp, "failures = %d", qmtest_nfails); | |
1da177e4 | 1252 | } else { |
0b932ccc | 1253 | xfs_debug(mp, "******** quotacheck successful! ********"); |
1da177e4 | 1254 | } |
f0e2d93c DV |
1255 | kmem_free(qmtest_udqtab); |
1256 | kmem_free(qmtest_gdqtab); | |
1da177e4 LT |
1257 | mutex_unlock(&qcheck_lock); |
1258 | return (qmtest_nfails); | |
1259 | } | |
1260 | ||
1261 | #endif /* DEBUG */ |