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 LT |
29 | #include "xfs_dir2.h" |
30 | #include "xfs_alloc.h" | |
31 | #include "xfs_dmapi.h" | |
32 | #include "xfs_quota.h" | |
33 | #include "xfs_mount.h" | |
1da177e4 | 34 | #include "xfs_bmap_btree.h" |
a844f451 | 35 | #include "xfs_alloc_btree.h" |
1da177e4 | 36 | #include "xfs_ialloc_btree.h" |
1da177e4 | 37 | #include "xfs_dir2_sf.h" |
a844f451 | 38 | #include "xfs_attr_sf.h" |
1da177e4 LT |
39 | #include "xfs_dinode.h" |
40 | #include "xfs_inode.h" | |
a844f451 NS |
41 | #include "xfs_ialloc.h" |
42 | #include "xfs_itable.h" | |
1da177e4 | 43 | #include "xfs_bmap.h" |
a844f451 | 44 | #include "xfs_btree.h" |
1da177e4 LT |
45 | #include "xfs_rtalloc.h" |
46 | #include "xfs_error.h" | |
1da177e4 | 47 | #include "xfs_rw.h" |
1da177e4 LT |
48 | #include "xfs_attr.h" |
49 | #include "xfs_buf_item.h" | |
50 | #include "xfs_utils.h" | |
1da177e4 | 51 | #include "xfs_qm.h" |
0b1b213f | 52 | #include "xfs_trace.h" |
1da177e4 LT |
53 | |
54 | #ifdef DEBUG | |
55 | # define qdprintk(s, args...) cmn_err(CE_DEBUG, s, ## args) | |
56 | #else | |
57 | # define qdprintk(s, args...) do { } while (0) | |
58 | #endif | |
59 | ||
1da177e4 LT |
60 | STATIC int xfs_qm_log_quotaoff(xfs_mount_t *, xfs_qoff_logitem_t **, uint); |
61 | STATIC int xfs_qm_log_quotaoff_end(xfs_mount_t *, xfs_qoff_logitem_t *, | |
62 | uint); | |
1da177e4 | 63 | STATIC uint xfs_qm_export_flags(uint); |
1da177e4 LT |
64 | STATIC uint xfs_qm_export_qtype_flags(uint); |
65 | STATIC void xfs_qm_export_dquot(xfs_mount_t *, xfs_disk_dquot_t *, | |
66 | fs_disk_quota_t *); | |
67 | ||
68 | ||
1da177e4 LT |
69 | /* |
70 | * Turn off quota accounting and/or enforcement for all udquots and/or | |
71 | * gdquots. Called only at unmount time. | |
72 | * | |
73 | * This assumes that there are no dquots of this file system cached | |
74 | * incore, and modifies the ondisk dquot directly. Therefore, for example, | |
75 | * it is an error to call this twice, without purging the cache. | |
76 | */ | |
fcafb71b | 77 | int |
1da177e4 LT |
78 | xfs_qm_scall_quotaoff( |
79 | xfs_mount_t *mp, | |
fcafb71b | 80 | uint flags) |
1da177e4 | 81 | { |
8a7b8a89 | 82 | struct xfs_quotainfo *q = mp->m_quotainfo; |
1da177e4 | 83 | uint dqtype; |
1da177e4 LT |
84 | int error; |
85 | uint inactivate_flags; | |
86 | xfs_qoff_logitem_t *qoffstart; | |
87 | int nculprits; | |
88 | ||
1da177e4 LT |
89 | /* |
90 | * No file system can have quotas enabled on disk but not in core. | |
91 | * Note that quota utilities (like quotaoff) _expect_ | |
92 | * errno == EEXIST here. | |
93 | */ | |
94 | if ((mp->m_qflags & flags) == 0) | |
95 | return XFS_ERROR(EEXIST); | |
96 | error = 0; | |
97 | ||
98 | flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD); | |
99 | ||
100 | /* | |
101 | * We don't want to deal with two quotaoffs messing up each other, | |
102 | * so we're going to serialize it. quotaoff isn't exactly a performance | |
103 | * critical thing. | |
104 | * If quotaoff, then we must be dealing with the root filesystem. | |
105 | */ | |
8a7b8a89 CH |
106 | ASSERT(q); |
107 | mutex_lock(&q->qi_quotaofflock); | |
1da177e4 LT |
108 | |
109 | /* | |
110 | * If we're just turning off quota enforcement, change mp and go. | |
111 | */ | |
112 | if ((flags & XFS_ALL_QUOTA_ACCT) == 0) { | |
113 | mp->m_qflags &= ~(flags); | |
114 | ||
3685c2a1 | 115 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 116 | mp->m_sb.sb_qflags = mp->m_qflags; |
3685c2a1 | 117 | spin_unlock(&mp->m_sb_lock); |
8a7b8a89 | 118 | mutex_unlock(&q->qi_quotaofflock); |
1da177e4 LT |
119 | |
120 | /* XXX what to do if error ? Revert back to old vals incore ? */ | |
121 | error = xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS); | |
122 | return (error); | |
123 | } | |
124 | ||
125 | dqtype = 0; | |
126 | inactivate_flags = 0; | |
127 | /* | |
128 | * If accounting is off, we must turn enforcement off, clear the | |
129 | * quota 'CHKD' certificate to make it known that we have to | |
130 | * do a quotacheck the next time this quota is turned on. | |
131 | */ | |
132 | if (flags & XFS_UQUOTA_ACCT) { | |
133 | dqtype |= XFS_QMOPT_UQUOTA; | |
134 | flags |= (XFS_UQUOTA_CHKD | XFS_UQUOTA_ENFD); | |
135 | inactivate_flags |= XFS_UQUOTA_ACTIVE; | |
136 | } | |
137 | if (flags & XFS_GQUOTA_ACCT) { | |
138 | dqtype |= XFS_QMOPT_GQUOTA; | |
c8ad20ff | 139 | flags |= (XFS_OQUOTA_CHKD | XFS_OQUOTA_ENFD); |
1da177e4 | 140 | inactivate_flags |= XFS_GQUOTA_ACTIVE; |
c8ad20ff NS |
141 | } else if (flags & XFS_PQUOTA_ACCT) { |
142 | dqtype |= XFS_QMOPT_PQUOTA; | |
143 | flags |= (XFS_OQUOTA_CHKD | XFS_OQUOTA_ENFD); | |
144 | inactivate_flags |= XFS_PQUOTA_ACTIVE; | |
1da177e4 LT |
145 | } |
146 | ||
147 | /* | |
148 | * Nothing to do? Don't complain. This happens when we're just | |
149 | * turning off quota enforcement. | |
150 | */ | |
8a7b8a89 CH |
151 | if ((mp->m_qflags & flags) == 0) |
152 | goto out_unlock; | |
1da177e4 LT |
153 | |
154 | /* | |
155 | * Write the LI_QUOTAOFF log record, and do SB changes atomically, | |
cb6edc26 DC |
156 | * and synchronously. If we fail to write, we should abort the |
157 | * operation as it cannot be recovered safely if we crash. | |
1da177e4 | 158 | */ |
cb6edc26 DC |
159 | error = xfs_qm_log_quotaoff(mp, &qoffstart, flags); |
160 | if (error) | |
8a7b8a89 | 161 | goto out_unlock; |
1da177e4 LT |
162 | |
163 | /* | |
164 | * Next we clear the XFS_MOUNT_*DQ_ACTIVE bit(s) in the mount struct | |
165 | * to take care of the race between dqget and quotaoff. We don't take | |
166 | * any special locks to reset these bits. All processes need to check | |
167 | * these bits *after* taking inode lock(s) to see if the particular | |
168 | * quota type is in the process of being turned off. If *ACTIVE, it is | |
169 | * guaranteed that all dquot structures and all quotainode ptrs will all | |
170 | * stay valid as long as that inode is kept locked. | |
171 | * | |
172 | * There is no turning back after this. | |
173 | */ | |
174 | mp->m_qflags &= ~inactivate_flags; | |
175 | ||
176 | /* | |
177 | * Give back all the dquot reference(s) held by inodes. | |
178 | * Here we go thru every single incore inode in this file system, and | |
179 | * do a dqrele on the i_udquot/i_gdquot that it may have. | |
180 | * Essentially, as long as somebody has an inode locked, this guarantees | |
181 | * that quotas will not be turned off. This is handy because in a | |
182 | * transaction once we lock the inode(s) and check for quotaon, we can | |
183 | * depend on the quota inodes (and other things) being valid as long as | |
184 | * we keep the lock(s). | |
185 | */ | |
186 | xfs_qm_dqrele_all_inodes(mp, flags); | |
187 | ||
188 | /* | |
189 | * Next we make the changes in the quota flag in the mount struct. | |
190 | * This isn't protected by a particular lock directly, because we | |
191 | * don't want to take a mrlock everytime we depend on quotas being on. | |
192 | */ | |
193 | mp->m_qflags &= ~(flags); | |
194 | ||
195 | /* | |
196 | * Go through all the dquots of this file system and purge them, | |
197 | * according to what was turned off. We may not be able to get rid | |
198 | * of all dquots, because dquots can have temporary references that | |
199 | * are not attached to inodes. eg. xfs_setattr, xfs_create. | |
200 | * So, if we couldn't purge all the dquots from the filesystem, | |
201 | * we can't get rid of the incore data structures. | |
202 | */ | |
8112e9dc | 203 | while ((nculprits = xfs_qm_dqpurge_all(mp, dqtype))) |
1da177e4 LT |
204 | delay(10 * nculprits); |
205 | ||
206 | /* | |
207 | * Transactions that had started before ACTIVE state bit was cleared | |
208 | * could have logged many dquots, so they'd have higher LSNs than | |
209 | * the first QUOTAOFF log record does. If we happen to crash when | |
210 | * the tail of the log has gone past the QUOTAOFF record, but | |
211 | * before the last dquot modification, those dquots __will__ | |
212 | * recover, and that's not good. | |
213 | * | |
214 | * So, we have QUOTAOFF start and end logitems; the start | |
215 | * logitem won't get overwritten until the end logitem appears... | |
216 | */ | |
cb6edc26 DC |
217 | error = xfs_qm_log_quotaoff_end(mp, qoffstart, flags); |
218 | if (error) { | |
219 | /* We're screwed now. Shutdown is the only option. */ | |
220 | xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE); | |
8a7b8a89 | 221 | goto out_unlock; |
cb6edc26 | 222 | } |
1da177e4 LT |
223 | |
224 | /* | |
225 | * If quotas is completely disabled, close shop. | |
226 | */ | |
c8ad20ff NS |
227 | if (((flags & XFS_MOUNT_QUOTA_ALL) == XFS_MOUNT_QUOTA_SET1) || |
228 | ((flags & XFS_MOUNT_QUOTA_ALL) == XFS_MOUNT_QUOTA_SET2)) { | |
8a7b8a89 | 229 | mutex_unlock(&q->qi_quotaofflock); |
1da177e4 LT |
230 | xfs_qm_destroy_quotainfo(mp); |
231 | return (0); | |
232 | } | |
233 | ||
234 | /* | |
8a7b8a89 | 235 | * Release our quotainode references if we don't need them anymore. |
1da177e4 | 236 | */ |
8a7b8a89 CH |
237 | if ((dqtype & XFS_QMOPT_UQUOTA) && q->qi_uquotaip) { |
238 | IRELE(q->qi_uquotaip); | |
239 | q->qi_uquotaip = NULL; | |
1da177e4 | 240 | } |
8a7b8a89 CH |
241 | if ((dqtype & (XFS_QMOPT_GQUOTA|XFS_QMOPT_PQUOTA)) && q->qi_gquotaip) { |
242 | IRELE(q->qi_gquotaip); | |
243 | q->qi_gquotaip = NULL; | |
1da177e4 | 244 | } |
1da177e4 | 245 | |
8a7b8a89 CH |
246 | out_unlock: |
247 | mutex_unlock(&q->qi_quotaofflock); | |
248 | return error; | |
1da177e4 LT |
249 | } |
250 | ||
fcafb71b | 251 | int |
1da177e4 LT |
252 | xfs_qm_scall_trunc_qfiles( |
253 | xfs_mount_t *mp, | |
254 | uint flags) | |
255 | { | |
88ab0208 | 256 | int error = 0, error2 = 0; |
1da177e4 LT |
257 | xfs_inode_t *qip; |
258 | ||
62118709 | 259 | if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0) { |
1da177e4 LT |
260 | qdprintk("qtrunc flags=%x m_qflags=%x\n", flags, mp->m_qflags); |
261 | return XFS_ERROR(EINVAL); | |
262 | } | |
263 | ||
264 | if ((flags & XFS_DQ_USER) && mp->m_sb.sb_uquotino != NULLFSINO) { | |
265 | error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 0, 0, &qip, 0); | |
88ab0208 DC |
266 | if (!error) { |
267 | error = xfs_truncate_file(mp, qip); | |
43355099 | 268 | IRELE(qip); |
1da177e4 LT |
269 | } |
270 | } | |
271 | ||
c8ad20ff NS |
272 | if ((flags & (XFS_DQ_GROUP|XFS_DQ_PROJ)) && |
273 | mp->m_sb.sb_gquotino != NULLFSINO) { | |
88ab0208 DC |
274 | error2 = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 0, 0, &qip, 0); |
275 | if (!error2) { | |
276 | error2 = xfs_truncate_file(mp, qip); | |
43355099 | 277 | IRELE(qip); |
1da177e4 LT |
278 | } |
279 | } | |
280 | ||
88ab0208 | 281 | return error ? error : error2; |
1da177e4 LT |
282 | } |
283 | ||
284 | ||
285 | /* | |
286 | * Switch on (a given) quota enforcement for a filesystem. This takes | |
287 | * effect immediately. | |
288 | * (Switching on quota accounting must be done at mount time.) | |
289 | */ | |
fcafb71b | 290 | int |
1da177e4 LT |
291 | xfs_qm_scall_quotaon( |
292 | xfs_mount_t *mp, | |
293 | uint flags) | |
294 | { | |
295 | int error; | |
1da177e4 LT |
296 | uint qf; |
297 | uint accflags; | |
298 | __int64_t sbflags; | |
299 | ||
1da177e4 LT |
300 | flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD); |
301 | /* | |
302 | * Switching on quota accounting must be done at mount time. | |
303 | */ | |
304 | accflags = flags & XFS_ALL_QUOTA_ACCT; | |
305 | flags &= ~(XFS_ALL_QUOTA_ACCT); | |
306 | ||
307 | sbflags = 0; | |
308 | ||
309 | if (flags == 0) { | |
310 | qdprintk("quotaon: zero flags, m_qflags=%x\n", mp->m_qflags); | |
311 | return XFS_ERROR(EINVAL); | |
312 | } | |
313 | ||
314 | /* No fs can turn on quotas with a delayed effect */ | |
315 | ASSERT((flags & XFS_ALL_QUOTA_ACCT) == 0); | |
316 | ||
317 | /* | |
318 | * Can't enforce without accounting. We check the superblock | |
319 | * qflags here instead of m_qflags because rootfs can have | |
320 | * quota acct on ondisk without m_qflags' knowing. | |
321 | */ | |
322 | if (((flags & XFS_UQUOTA_ACCT) == 0 && | |
323 | (mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) == 0 && | |
324 | (flags & XFS_UQUOTA_ENFD)) | |
325 | || | |
c8ad20ff NS |
326 | ((flags & XFS_PQUOTA_ACCT) == 0 && |
327 | (mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 && | |
424ea91b | 328 | (flags & XFS_GQUOTA_ACCT) == 0 && |
1da177e4 | 329 | (mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 && |
c8ad20ff | 330 | (flags & XFS_OQUOTA_ENFD))) { |
1da177e4 LT |
331 | qdprintk("Can't enforce without acct, flags=%x sbflags=%x\n", |
332 | flags, mp->m_sb.sb_qflags); | |
333 | return XFS_ERROR(EINVAL); | |
334 | } | |
335 | /* | |
336 | * If everything's upto-date incore, then don't waste time. | |
337 | */ | |
338 | if ((mp->m_qflags & flags) == flags) | |
339 | return XFS_ERROR(EEXIST); | |
340 | ||
341 | /* | |
342 | * Change sb_qflags on disk but not incore mp->qflags | |
343 | * if this is the root filesystem. | |
344 | */ | |
3685c2a1 | 345 | spin_lock(&mp->m_sb_lock); |
1da177e4 LT |
346 | qf = mp->m_sb.sb_qflags; |
347 | mp->m_sb.sb_qflags = qf | flags; | |
3685c2a1 | 348 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
349 | |
350 | /* | |
351 | * There's nothing to change if it's the same. | |
352 | */ | |
353 | if ((qf & flags) == flags && sbflags == 0) | |
354 | return XFS_ERROR(EEXIST); | |
355 | sbflags |= XFS_SB_QFLAGS; | |
356 | ||
357 | if ((error = xfs_qm_write_sb_changes(mp, sbflags))) | |
358 | return (error); | |
359 | /* | |
360 | * If we aren't trying to switch on quota enforcement, we are done. | |
361 | */ | |
362 | if (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) != | |
363 | (mp->m_qflags & XFS_UQUOTA_ACCT)) || | |
c8ad20ff NS |
364 | ((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) != |
365 | (mp->m_qflags & XFS_PQUOTA_ACCT)) || | |
366 | ((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) != | |
367 | (mp->m_qflags & XFS_GQUOTA_ACCT)) || | |
1da177e4 LT |
368 | (flags & XFS_ALL_QUOTA_ENFD) == 0) |
369 | return (0); | |
370 | ||
371 | if (! XFS_IS_QUOTA_RUNNING(mp)) | |
372 | return XFS_ERROR(ESRCH); | |
373 | ||
374 | /* | |
375 | * Switch on quota enforcement in core. | |
376 | */ | |
8a7b8a89 | 377 | mutex_lock(&mp->m_quotainfo->qi_quotaofflock); |
1da177e4 | 378 | mp->m_qflags |= (flags & XFS_ALL_QUOTA_ENFD); |
8a7b8a89 | 379 | mutex_unlock(&mp->m_quotainfo->qi_quotaofflock); |
1da177e4 LT |
380 | |
381 | return (0); | |
382 | } | |
383 | ||
384 | ||
1da177e4 LT |
385 | /* |
386 | * Return quota status information, such as uquota-off, enforcements, etc. | |
387 | */ | |
fcafb71b | 388 | int |
1da177e4 | 389 | xfs_qm_scall_getqstat( |
8a7b8a89 CH |
390 | struct xfs_mount *mp, |
391 | struct fs_quota_stat *out) | |
1da177e4 | 392 | { |
8a7b8a89 CH |
393 | struct xfs_quotainfo *q = mp->m_quotainfo; |
394 | struct xfs_inode *uip, *gip; | |
395 | boolean_t tempuqip, tempgqip; | |
1da177e4 LT |
396 | |
397 | uip = gip = NULL; | |
398 | tempuqip = tempgqip = B_FALSE; | |
399 | memset(out, 0, sizeof(fs_quota_stat_t)); | |
400 | ||
401 | out->qs_version = FS_QSTAT_VERSION; | |
62118709 | 402 | if (!xfs_sb_version_hasquota(&mp->m_sb)) { |
1da177e4 LT |
403 | out->qs_uquota.qfs_ino = NULLFSINO; |
404 | out->qs_gquota.qfs_ino = NULLFSINO; | |
405 | return (0); | |
406 | } | |
407 | out->qs_flags = (__uint16_t) xfs_qm_export_flags(mp->m_qflags & | |
408 | (XFS_ALL_QUOTA_ACCT| | |
409 | XFS_ALL_QUOTA_ENFD)); | |
410 | out->qs_pad = 0; | |
411 | out->qs_uquota.qfs_ino = mp->m_sb.sb_uquotino; | |
412 | out->qs_gquota.qfs_ino = mp->m_sb.sb_gquotino; | |
413 | ||
8a7b8a89 CH |
414 | if (q) { |
415 | uip = q->qi_uquotaip; | |
416 | gip = q->qi_gquotaip; | |
1da177e4 LT |
417 | } |
418 | if (!uip && mp->m_sb.sb_uquotino != NULLFSINO) { | |
419 | if (xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, | |
420 | 0, 0, &uip, 0) == 0) | |
421 | tempuqip = B_TRUE; | |
422 | } | |
423 | if (!gip && mp->m_sb.sb_gquotino != NULLFSINO) { | |
424 | if (xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, | |
425 | 0, 0, &gip, 0) == 0) | |
426 | tempgqip = B_TRUE; | |
427 | } | |
428 | if (uip) { | |
429 | out->qs_uquota.qfs_nblks = uip->i_d.di_nblocks; | |
430 | out->qs_uquota.qfs_nextents = uip->i_d.di_nextents; | |
431 | if (tempuqip) | |
43355099 | 432 | IRELE(uip); |
1da177e4 LT |
433 | } |
434 | if (gip) { | |
435 | out->qs_gquota.qfs_nblks = gip->i_d.di_nblocks; | |
436 | out->qs_gquota.qfs_nextents = gip->i_d.di_nextents; | |
437 | if (tempgqip) | |
43355099 | 438 | IRELE(gip); |
1da177e4 | 439 | } |
8a7b8a89 CH |
440 | if (q) { |
441 | out->qs_incoredqs = q->qi_dquots; | |
442 | out->qs_btimelimit = q->qi_btimelimit; | |
443 | out->qs_itimelimit = q->qi_itimelimit; | |
444 | out->qs_rtbtimelimit = q->qi_rtbtimelimit; | |
445 | out->qs_bwarnlimit = q->qi_bwarnlimit; | |
446 | out->qs_iwarnlimit = q->qi_iwarnlimit; | |
1da177e4 | 447 | } |
8a7b8a89 | 448 | return 0; |
1da177e4 LT |
449 | } |
450 | ||
c472b432 CH |
451 | #define XFS_DQ_MASK \ |
452 | (FS_DQ_LIMIT_MASK | FS_DQ_TIMER_MASK | FS_DQ_WARNS_MASK) | |
453 | ||
1da177e4 LT |
454 | /* |
455 | * Adjust quota limits, and start/stop timers accordingly. | |
456 | */ | |
fcafb71b | 457 | int |
1da177e4 LT |
458 | xfs_qm_scall_setqlim( |
459 | xfs_mount_t *mp, | |
460 | xfs_dqid_t id, | |
461 | uint type, | |
462 | fs_disk_quota_t *newlim) | |
463 | { | |
8a7b8a89 | 464 | struct xfs_quotainfo *q = mp->m_quotainfo; |
1da177e4 LT |
465 | xfs_disk_dquot_t *ddq; |
466 | xfs_dquot_t *dqp; | |
467 | xfs_trans_t *tp; | |
468 | int error; | |
469 | xfs_qcnt_t hard, soft; | |
470 | ||
c472b432 CH |
471 | if (newlim->d_fieldmask & ~XFS_DQ_MASK) |
472 | return EINVAL; | |
473 | if ((newlim->d_fieldmask & XFS_DQ_MASK) == 0) | |
474 | return 0; | |
1da177e4 LT |
475 | |
476 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SETQLIM); | |
477 | if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_disk_dquot_t) + 128, | |
478 | 0, 0, XFS_DEFAULT_LOG_COUNT))) { | |
479 | xfs_trans_cancel(tp, 0); | |
480 | return (error); | |
481 | } | |
482 | ||
483 | /* | |
484 | * We don't want to race with a quotaoff so take the quotaoff lock. | |
485 | * (We don't hold an inode lock, so there's nothing else to stop | |
486 | * a quotaoff from happening). (XXXThis doesn't currently happen | |
487 | * because we take the vfslock before calling xfs_qm_sysent). | |
488 | */ | |
8a7b8a89 | 489 | mutex_lock(&q->qi_quotaofflock); |
1da177e4 LT |
490 | |
491 | /* | |
492 | * Get the dquot (locked), and join it to the transaction. | |
493 | * Allocate the dquot if this doesn't exist. | |
494 | */ | |
495 | if ((error = xfs_qm_dqget(mp, NULL, id, type, XFS_QMOPT_DQALLOC, &dqp))) { | |
496 | xfs_trans_cancel(tp, XFS_TRANS_ABORT); | |
1da177e4 | 497 | ASSERT(error != ENOENT); |
8a7b8a89 | 498 | goto out_unlock; |
1da177e4 | 499 | } |
1da177e4 LT |
500 | xfs_trans_dqjoin(tp, dqp); |
501 | ddq = &dqp->q_core; | |
502 | ||
503 | /* | |
504 | * Make sure that hardlimits are >= soft limits before changing. | |
505 | */ | |
506 | hard = (newlim->d_fieldmask & FS_DQ_BHARD) ? | |
507 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_hardlimit) : | |
1149d96a | 508 | be64_to_cpu(ddq->d_blk_hardlimit); |
1da177e4 LT |
509 | soft = (newlim->d_fieldmask & FS_DQ_BSOFT) ? |
510 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_softlimit) : | |
1149d96a | 511 | be64_to_cpu(ddq->d_blk_softlimit); |
1da177e4 | 512 | if (hard == 0 || hard >= soft) { |
1149d96a CH |
513 | ddq->d_blk_hardlimit = cpu_to_be64(hard); |
514 | ddq->d_blk_softlimit = cpu_to_be64(soft); | |
1da177e4 | 515 | if (id == 0) { |
8a7b8a89 CH |
516 | q->qi_bhardlimit = hard; |
517 | q->qi_bsoftlimit = soft; | |
1da177e4 LT |
518 | } |
519 | } else { | |
520 | qdprintk("blkhard %Ld < blksoft %Ld\n", hard, soft); | |
521 | } | |
522 | hard = (newlim->d_fieldmask & FS_DQ_RTBHARD) ? | |
523 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_hardlimit) : | |
1149d96a | 524 | be64_to_cpu(ddq->d_rtb_hardlimit); |
1da177e4 LT |
525 | soft = (newlim->d_fieldmask & FS_DQ_RTBSOFT) ? |
526 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_softlimit) : | |
1149d96a | 527 | be64_to_cpu(ddq->d_rtb_softlimit); |
1da177e4 | 528 | if (hard == 0 || hard >= soft) { |
1149d96a CH |
529 | ddq->d_rtb_hardlimit = cpu_to_be64(hard); |
530 | ddq->d_rtb_softlimit = cpu_to_be64(soft); | |
1da177e4 | 531 | if (id == 0) { |
8a7b8a89 CH |
532 | q->qi_rtbhardlimit = hard; |
533 | q->qi_rtbsoftlimit = soft; | |
1da177e4 LT |
534 | } |
535 | } else { | |
536 | qdprintk("rtbhard %Ld < rtbsoft %Ld\n", hard, soft); | |
537 | } | |
538 | ||
539 | hard = (newlim->d_fieldmask & FS_DQ_IHARD) ? | |
540 | (xfs_qcnt_t) newlim->d_ino_hardlimit : | |
1149d96a | 541 | be64_to_cpu(ddq->d_ino_hardlimit); |
1da177e4 LT |
542 | soft = (newlim->d_fieldmask & FS_DQ_ISOFT) ? |
543 | (xfs_qcnt_t) newlim->d_ino_softlimit : | |
1149d96a | 544 | be64_to_cpu(ddq->d_ino_softlimit); |
1da177e4 | 545 | if (hard == 0 || hard >= soft) { |
1149d96a CH |
546 | ddq->d_ino_hardlimit = cpu_to_be64(hard); |
547 | ddq->d_ino_softlimit = cpu_to_be64(soft); | |
1da177e4 | 548 | if (id == 0) { |
8a7b8a89 CH |
549 | q->qi_ihardlimit = hard; |
550 | q->qi_isoftlimit = soft; | |
1da177e4 LT |
551 | } |
552 | } else { | |
553 | qdprintk("ihard %Ld < isoft %Ld\n", hard, soft); | |
554 | } | |
555 | ||
754002b4 NS |
556 | /* |
557 | * Update warnings counter(s) if requested | |
558 | */ | |
559 | if (newlim->d_fieldmask & FS_DQ_BWARNS) | |
1149d96a | 560 | ddq->d_bwarns = cpu_to_be16(newlim->d_bwarns); |
754002b4 | 561 | if (newlim->d_fieldmask & FS_DQ_IWARNS) |
1149d96a | 562 | ddq->d_iwarns = cpu_to_be16(newlim->d_iwarns); |
754002b4 | 563 | if (newlim->d_fieldmask & FS_DQ_RTBWARNS) |
1149d96a | 564 | ddq->d_rtbwarns = cpu_to_be16(newlim->d_rtbwarns); |
754002b4 | 565 | |
1da177e4 LT |
566 | if (id == 0) { |
567 | /* | |
568 | * Timelimits for the super user set the relative time | |
569 | * the other users can be over quota for this file system. | |
570 | * If it is zero a default is used. Ditto for the default | |
754002b4 NS |
571 | * soft and hard limit values (already done, above), and |
572 | * for warnings. | |
1da177e4 LT |
573 | */ |
574 | if (newlim->d_fieldmask & FS_DQ_BTIMER) { | |
8a7b8a89 | 575 | q->qi_btimelimit = newlim->d_btimer; |
1149d96a | 576 | ddq->d_btimer = cpu_to_be32(newlim->d_btimer); |
1da177e4 LT |
577 | } |
578 | if (newlim->d_fieldmask & FS_DQ_ITIMER) { | |
8a7b8a89 | 579 | q->qi_itimelimit = newlim->d_itimer; |
1149d96a | 580 | ddq->d_itimer = cpu_to_be32(newlim->d_itimer); |
1da177e4 LT |
581 | } |
582 | if (newlim->d_fieldmask & FS_DQ_RTBTIMER) { | |
8a7b8a89 | 583 | q->qi_rtbtimelimit = newlim->d_rtbtimer; |
1149d96a | 584 | ddq->d_rtbtimer = cpu_to_be32(newlim->d_rtbtimer); |
1da177e4 | 585 | } |
754002b4 | 586 | if (newlim->d_fieldmask & FS_DQ_BWARNS) |
8a7b8a89 | 587 | q->qi_bwarnlimit = newlim->d_bwarns; |
754002b4 | 588 | if (newlim->d_fieldmask & FS_DQ_IWARNS) |
8a7b8a89 | 589 | q->qi_iwarnlimit = newlim->d_iwarns; |
754002b4 | 590 | if (newlim->d_fieldmask & FS_DQ_RTBWARNS) |
8a7b8a89 | 591 | q->qi_rtbwarnlimit = newlim->d_rtbwarns; |
754002b4 | 592 | } else { |
1da177e4 LT |
593 | /* |
594 | * If the user is now over quota, start the timelimit. | |
595 | * The user will not be 'warned'. | |
596 | * Note that we keep the timers ticking, whether enforcement | |
597 | * is on or off. We don't really want to bother with iterating | |
598 | * over all ondisk dquots and turning the timers on/off. | |
599 | */ | |
600 | xfs_qm_adjust_dqtimers(mp, ddq); | |
601 | } | |
602 | dqp->dq_flags |= XFS_DQ_DIRTY; | |
603 | xfs_trans_log_dquot(tp, dqp); | |
604 | ||
e5720eec | 605 | error = xfs_trans_commit(tp, 0); |
1da177e4 LT |
606 | xfs_qm_dqprint(dqp); |
607 | xfs_qm_dqrele(dqp); | |
1da177e4 | 608 | |
8a7b8a89 CH |
609 | out_unlock: |
610 | mutex_unlock(&q->qi_quotaofflock); | |
e5720eec | 611 | return error; |
1da177e4 LT |
612 | } |
613 | ||
fcafb71b | 614 | int |
1da177e4 LT |
615 | xfs_qm_scall_getquota( |
616 | xfs_mount_t *mp, | |
617 | xfs_dqid_t id, | |
618 | uint type, | |
619 | fs_disk_quota_t *out) | |
620 | { | |
621 | xfs_dquot_t *dqp; | |
622 | int error; | |
623 | ||
624 | /* | |
625 | * Try to get the dquot. We don't want it allocated on disk, so | |
626 | * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't | |
627 | * exist, we'll get ENOENT back. | |
628 | */ | |
629 | if ((error = xfs_qm_dqget(mp, NULL, id, type, 0, &dqp))) { | |
630 | return (error); | |
631 | } | |
632 | ||
1da177e4 LT |
633 | /* |
634 | * If everything's NULL, this dquot doesn't quite exist as far as | |
635 | * our utility programs are concerned. | |
636 | */ | |
637 | if (XFS_IS_DQUOT_UNINITIALIZED(dqp)) { | |
638 | xfs_qm_dqput(dqp); | |
639 | return XFS_ERROR(ENOENT); | |
640 | } | |
641 | /* xfs_qm_dqprint(dqp); */ | |
642 | /* | |
643 | * Convert the disk dquot to the exportable format | |
644 | */ | |
645 | xfs_qm_export_dquot(mp, &dqp->q_core, out); | |
646 | xfs_qm_dqput(dqp); | |
647 | return (error ? XFS_ERROR(EFAULT) : 0); | |
648 | } | |
649 | ||
650 | ||
651 | STATIC int | |
652 | xfs_qm_log_quotaoff_end( | |
653 | xfs_mount_t *mp, | |
654 | xfs_qoff_logitem_t *startqoff, | |
655 | uint flags) | |
656 | { | |
c8ad20ff | 657 | xfs_trans_t *tp; |
1da177e4 | 658 | int error; |
c8ad20ff | 659 | xfs_qoff_logitem_t *qoffi; |
1da177e4 LT |
660 | |
661 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF_END); | |
662 | ||
663 | if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_qoff_logitem_t) * 2, | |
664 | 0, 0, XFS_DEFAULT_LOG_COUNT))) { | |
665 | xfs_trans_cancel(tp, 0); | |
666 | return (error); | |
667 | } | |
668 | ||
669 | qoffi = xfs_trans_get_qoff_item(tp, startqoff, | |
670 | flags & XFS_ALL_QUOTA_ACCT); | |
671 | xfs_trans_log_quotaoff_item(tp, qoffi); | |
672 | ||
673 | /* | |
674 | * We have to make sure that the transaction is secure on disk before we | |
675 | * return and actually stop quota accounting. So, make it synchronous. | |
676 | * We don't care about quotoff's performance. | |
677 | */ | |
678 | xfs_trans_set_sync(tp); | |
1c72bf90 | 679 | error = xfs_trans_commit(tp, 0); |
1da177e4 LT |
680 | return (error); |
681 | } | |
682 | ||
683 | ||
684 | STATIC int | |
685 | xfs_qm_log_quotaoff( | |
686 | xfs_mount_t *mp, | |
687 | xfs_qoff_logitem_t **qoffstartp, | |
688 | uint flags) | |
689 | { | |
690 | xfs_trans_t *tp; | |
691 | int error; | |
1da177e4 LT |
692 | xfs_qoff_logitem_t *qoffi=NULL; |
693 | uint oldsbqflag=0; | |
694 | ||
695 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF); | |
696 | if ((error = xfs_trans_reserve(tp, 0, | |
697 | sizeof(xfs_qoff_logitem_t) * 2 + | |
698 | mp->m_sb.sb_sectsize + 128, | |
699 | 0, | |
700 | 0, | |
701 | XFS_DEFAULT_LOG_COUNT))) { | |
702 | goto error0; | |
703 | } | |
704 | ||
705 | qoffi = xfs_trans_get_qoff_item(tp, NULL, flags & XFS_ALL_QUOTA_ACCT); | |
706 | xfs_trans_log_quotaoff_item(tp, qoffi); | |
707 | ||
3685c2a1 | 708 | spin_lock(&mp->m_sb_lock); |
1da177e4 LT |
709 | oldsbqflag = mp->m_sb.sb_qflags; |
710 | mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL; | |
3685c2a1 | 711 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
712 | |
713 | xfs_mod_sb(tp, XFS_SB_QFLAGS); | |
714 | ||
715 | /* | |
716 | * We have to make sure that the transaction is secure on disk before we | |
717 | * return and actually stop quota accounting. So, make it synchronous. | |
718 | * We don't care about quotoff's performance. | |
719 | */ | |
720 | xfs_trans_set_sync(tp); | |
1c72bf90 | 721 | error = xfs_trans_commit(tp, 0); |
1da177e4 LT |
722 | |
723 | error0: | |
724 | if (error) { | |
725 | xfs_trans_cancel(tp, 0); | |
726 | /* | |
727 | * No one else is modifying sb_qflags, so this is OK. | |
728 | * We still hold the quotaofflock. | |
729 | */ | |
3685c2a1 | 730 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 731 | mp->m_sb.sb_qflags = oldsbqflag; |
3685c2a1 | 732 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
733 | } |
734 | *qoffstartp = qoffi; | |
735 | return (error); | |
736 | } | |
737 | ||
738 | ||
739 | /* | |
740 | * Translate an internal style on-disk-dquot to the exportable format. | |
741 | * The main differences are that the counters/limits are all in Basic | |
742 | * Blocks (BBs) instead of the internal FSBs, and all on-disk data has | |
743 | * to be converted to the native endianness. | |
744 | */ | |
745 | STATIC void | |
746 | xfs_qm_export_dquot( | |
747 | xfs_mount_t *mp, | |
748 | xfs_disk_dquot_t *src, | |
749 | struct fs_disk_quota *dst) | |
750 | { | |
751 | memset(dst, 0, sizeof(*dst)); | |
752 | dst->d_version = FS_DQUOT_VERSION; /* different from src->d_version */ | |
1149d96a CH |
753 | dst->d_flags = xfs_qm_export_qtype_flags(src->d_flags); |
754 | dst->d_id = be32_to_cpu(src->d_id); | |
755 | dst->d_blk_hardlimit = | |
756 | XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_blk_hardlimit)); | |
757 | dst->d_blk_softlimit = | |
758 | XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_blk_softlimit)); | |
759 | dst->d_ino_hardlimit = be64_to_cpu(src->d_ino_hardlimit); | |
760 | dst->d_ino_softlimit = be64_to_cpu(src->d_ino_softlimit); | |
761 | dst->d_bcount = XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_bcount)); | |
762 | dst->d_icount = be64_to_cpu(src->d_icount); | |
763 | dst->d_btimer = be32_to_cpu(src->d_btimer); | |
764 | dst->d_itimer = be32_to_cpu(src->d_itimer); | |
765 | dst->d_iwarns = be16_to_cpu(src->d_iwarns); | |
766 | dst->d_bwarns = be16_to_cpu(src->d_bwarns); | |
767 | dst->d_rtb_hardlimit = | |
768 | XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtb_hardlimit)); | |
769 | dst->d_rtb_softlimit = | |
770 | XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtb_softlimit)); | |
771 | dst->d_rtbcount = XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtbcount)); | |
772 | dst->d_rtbtimer = be32_to_cpu(src->d_rtbtimer); | |
773 | dst->d_rtbwarns = be16_to_cpu(src->d_rtbwarns); | |
1da177e4 LT |
774 | |
775 | /* | |
776 | * Internally, we don't reset all the timers when quota enforcement | |
c41564b5 | 777 | * gets turned off. No need to confuse the user level code, |
1da177e4 LT |
778 | * so return zeroes in that case. |
779 | */ | |
e6d29426 KO |
780 | if ((!XFS_IS_UQUOTA_ENFORCED(mp) && src->d_flags == XFS_DQ_USER) || |
781 | (!XFS_IS_OQUOTA_ENFORCED(mp) && | |
782 | (src->d_flags & (XFS_DQ_PROJ | XFS_DQ_GROUP)))) { | |
1da177e4 LT |
783 | dst->d_btimer = 0; |
784 | dst->d_itimer = 0; | |
785 | dst->d_rtbtimer = 0; | |
786 | } | |
787 | ||
788 | #ifdef DEBUG | |
e6d29426 KO |
789 | if (((XFS_IS_UQUOTA_ENFORCED(mp) && dst->d_flags == XFS_USER_QUOTA) || |
790 | (XFS_IS_OQUOTA_ENFORCED(mp) && | |
791 | (dst->d_flags & (XFS_PROJ_QUOTA | XFS_GROUP_QUOTA)))) && | |
792 | dst->d_id != 0) { | |
1da177e4 LT |
793 | if (((int) dst->d_bcount >= (int) dst->d_blk_softlimit) && |
794 | (dst->d_blk_softlimit > 0)) { | |
795 | ASSERT(dst->d_btimer != 0); | |
796 | } | |
797 | if (((int) dst->d_icount >= (int) dst->d_ino_softlimit) && | |
798 | (dst->d_ino_softlimit > 0)) { | |
799 | ASSERT(dst->d_itimer != 0); | |
800 | } | |
801 | } | |
802 | #endif | |
803 | } | |
804 | ||
1da177e4 LT |
805 | STATIC uint |
806 | xfs_qm_export_qtype_flags( | |
807 | uint flags) | |
808 | { | |
809 | /* | |
c8ad20ff | 810 | * Can't be more than one, or none. |
1da177e4 | 811 | */ |
c8ad20ff NS |
812 | ASSERT((flags & (XFS_PROJ_QUOTA | XFS_USER_QUOTA)) != |
813 | (XFS_PROJ_QUOTA | XFS_USER_QUOTA)); | |
814 | ASSERT((flags & (XFS_PROJ_QUOTA | XFS_GROUP_QUOTA)) != | |
815 | (XFS_PROJ_QUOTA | XFS_GROUP_QUOTA)); | |
816 | ASSERT((flags & (XFS_USER_QUOTA | XFS_GROUP_QUOTA)) != | |
817 | (XFS_USER_QUOTA | XFS_GROUP_QUOTA)); | |
818 | ASSERT((flags & (XFS_PROJ_QUOTA|XFS_USER_QUOTA|XFS_GROUP_QUOTA)) != 0); | |
1da177e4 LT |
819 | |
820 | return (flags & XFS_DQ_USER) ? | |
c8ad20ff NS |
821 | XFS_USER_QUOTA : (flags & XFS_DQ_PROJ) ? |
822 | XFS_PROJ_QUOTA : XFS_GROUP_QUOTA; | |
1da177e4 LT |
823 | } |
824 | ||
1da177e4 LT |
825 | STATIC uint |
826 | xfs_qm_export_flags( | |
827 | uint flags) | |
828 | { | |
829 | uint uflags; | |
830 | ||
831 | uflags = 0; | |
832 | if (flags & XFS_UQUOTA_ACCT) | |
833 | uflags |= XFS_QUOTA_UDQ_ACCT; | |
c8ad20ff NS |
834 | if (flags & XFS_PQUOTA_ACCT) |
835 | uflags |= XFS_QUOTA_PDQ_ACCT; | |
1da177e4 LT |
836 | if (flags & XFS_GQUOTA_ACCT) |
837 | uflags |= XFS_QUOTA_GDQ_ACCT; | |
838 | if (flags & XFS_UQUOTA_ENFD) | |
839 | uflags |= XFS_QUOTA_UDQ_ENFD; | |
c8ad20ff NS |
840 | if (flags & (XFS_OQUOTA_ENFD)) { |
841 | uflags |= (flags & XFS_GQUOTA_ACCT) ? | |
842 | XFS_QUOTA_GDQ_ENFD : XFS_QUOTA_PDQ_ENFD; | |
843 | } | |
1da177e4 LT |
844 | return (uflags); |
845 | } | |
846 | ||
847 | ||
fe588ed3 CH |
848 | STATIC int |
849 | xfs_dqrele_inode( | |
850 | struct xfs_inode *ip, | |
851 | struct xfs_perag *pag, | |
852 | int flags) | |
1da177e4 | 853 | { |
fe588ed3 | 854 | int error; |
cb4f0d1d | 855 | |
fe588ed3 | 856 | /* skip quota inodes */ |
8a7b8a89 CH |
857 | if (ip == ip->i_mount->m_quotainfo->qi_uquotaip || |
858 | ip == ip->i_mount->m_quotainfo->qi_gquotaip) { | |
fe588ed3 CH |
859 | ASSERT(ip->i_udquot == NULL); |
860 | ASSERT(ip->i_gdquot == NULL); | |
cb4f0d1d | 861 | read_unlock(&pag->pag_ici_lock); |
fe588ed3 CH |
862 | return 0; |
863 | } | |
cb4f0d1d | 864 | |
fe588ed3 CH |
865 | error = xfs_sync_inode_valid(ip, pag); |
866 | if (error) | |
867 | return error; | |
6307091f | 868 | |
fe588ed3 CH |
869 | xfs_ilock(ip, XFS_ILOCK_EXCL); |
870 | if ((flags & XFS_UQUOTA_ACCT) && ip->i_udquot) { | |
871 | xfs_qm_dqrele(ip->i_udquot); | |
872 | ip->i_udquot = NULL; | |
873 | } | |
874 | if (flags & (XFS_PQUOTA_ACCT|XFS_GQUOTA_ACCT) && ip->i_gdquot) { | |
875 | xfs_qm_dqrele(ip->i_gdquot); | |
876 | ip->i_gdquot = NULL; | |
877 | } | |
878 | xfs_iput(ip, XFS_ILOCK_EXCL); | |
cb4f0d1d | 879 | |
fe588ed3 | 880 | return 0; |
5b4d89ae DC |
881 | } |
882 | ||
fe588ed3 | 883 | |
5b4d89ae DC |
884 | /* |
885 | * Go thru all the inodes in the file system, releasing their dquots. | |
fe588ed3 | 886 | * |
5b4d89ae | 887 | * Note that the mount structure gets modified to indicate that quotas are off |
fe588ed3 | 888 | * AFTER this, in the case of quotaoff. |
5b4d89ae DC |
889 | */ |
890 | void | |
891 | xfs_qm_dqrele_all_inodes( | |
892 | struct xfs_mount *mp, | |
893 | uint flags) | |
894 | { | |
5b4d89ae | 895 | ASSERT(mp->m_quotainfo); |
9bf729c0 DC |
896 | xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags, |
897 | XFS_ICI_NO_TAG, 0, NULL); | |
1da177e4 LT |
898 | } |
899 | ||
900 | /*------------------------------------------------------------------------*/ | |
901 | #ifdef DEBUG | |
902 | /* | |
903 | * This contains all the test functions for XFS disk quotas. | |
904 | * Currently it does a quota accounting check. ie. it walks through | |
905 | * all inodes in the file system, calculating the dquot accounting fields, | |
906 | * and prints out any inconsistencies. | |
907 | */ | |
908 | xfs_dqhash_t *qmtest_udqtab; | |
909 | xfs_dqhash_t *qmtest_gdqtab; | |
910 | int qmtest_hashmask; | |
911 | int qmtest_nfails; | |
a0b0b8a5 | 912 | struct mutex qcheck_lock; |
1da177e4 LT |
913 | |
914 | #define DQTEST_HASHVAL(mp, id) (((__psunsigned_t)(mp) + \ | |
915 | (__psunsigned_t)(id)) & \ | |
916 | (qmtest_hashmask - 1)) | |
917 | ||
918 | #define DQTEST_HASH(mp, id, type) ((type & XFS_DQ_USER) ? \ | |
919 | (qmtest_udqtab + \ | |
920 | DQTEST_HASHVAL(mp, id)) : \ | |
921 | (qmtest_gdqtab + \ | |
922 | DQTEST_HASHVAL(mp, id))) | |
923 | ||
924 | #define DQTEST_LIST_PRINT(l, NXT, title) \ | |
925 | { \ | |
926 | xfs_dqtest_t *dqp; int i = 0;\ | |
927 | cmn_err(CE_DEBUG, "%s (#%d)", title, (int) (l)->qh_nelems); \ | |
928 | for (dqp = (xfs_dqtest_t *)(l)->qh_next; dqp != NULL; \ | |
929 | dqp = (xfs_dqtest_t *)dqp->NXT) { \ | |
930 | cmn_err(CE_DEBUG, " %d. \"%d (%s)\" bcnt = %d, icnt = %d", \ | |
931 | ++i, dqp->d_id, DQFLAGTO_TYPESTR(dqp), \ | |
932 | dqp->d_bcount, dqp->d_icount); } \ | |
933 | } | |
934 | ||
935 | typedef struct dqtest { | |
74457cf4 | 936 | uint dq_flags; /* various flags (XFS_DQ_*) */ |
e6a81f13 | 937 | struct list_head q_hashlist; |
1da177e4 LT |
938 | xfs_dqhash_t *q_hash; /* the hashchain header */ |
939 | xfs_mount_t *q_mount; /* filesystem this relates to */ | |
940 | xfs_dqid_t d_id; /* user id or group id */ | |
941 | xfs_qcnt_t d_bcount; /* # disk blocks owned by the user */ | |
942 | xfs_qcnt_t d_icount; /* # inodes owned by the user */ | |
943 | } xfs_dqtest_t; | |
944 | ||
945 | STATIC void | |
946 | xfs_qm_hashinsert(xfs_dqhash_t *h, xfs_dqtest_t *dqp) | |
947 | { | |
e6a81f13 DC |
948 | list_add(&dqp->q_hashlist, &h->qh_list); |
949 | h->qh_version++; | |
950 | h->qh_nelems++; | |
1da177e4 LT |
951 | } |
952 | STATIC void | |
953 | xfs_qm_dqtest_print( | |
954 | xfs_dqtest_t *d) | |
955 | { | |
956 | cmn_err(CE_DEBUG, "-----------DQTEST DQUOT----------------"); | |
957 | cmn_err(CE_DEBUG, "---- dquot ID = %d", d->d_id); | |
1da177e4 LT |
958 | cmn_err(CE_DEBUG, "---- fs = 0x%p", d->q_mount); |
959 | cmn_err(CE_DEBUG, "---- bcount = %Lu (0x%x)", | |
960 | d->d_bcount, (int)d->d_bcount); | |
961 | cmn_err(CE_DEBUG, "---- icount = %Lu (0x%x)", | |
962 | d->d_icount, (int)d->d_icount); | |
963 | cmn_err(CE_DEBUG, "---------------------------"); | |
964 | } | |
965 | ||
966 | STATIC void | |
967 | xfs_qm_dqtest_failed( | |
968 | xfs_dqtest_t *d, | |
969 | xfs_dquot_t *dqp, | |
970 | char *reason, | |
971 | xfs_qcnt_t a, | |
972 | xfs_qcnt_t b, | |
973 | int error) | |
974 | { | |
975 | qmtest_nfails++; | |
976 | if (error) | |
977 | cmn_err(CE_DEBUG, "quotacheck failed id=%d, err=%d\nreason: %s", | |
1149d96a | 978 | d->d_id, error, reason); |
1da177e4 LT |
979 | else |
980 | cmn_err(CE_DEBUG, "quotacheck failed id=%d (%s) [%d != %d]", | |
1149d96a | 981 | d->d_id, reason, (int)a, (int)b); |
1da177e4 LT |
982 | xfs_qm_dqtest_print(d); |
983 | if (dqp) | |
984 | xfs_qm_dqprint(dqp); | |
985 | } | |
986 | ||
987 | STATIC int | |
988 | xfs_dqtest_cmp2( | |
989 | xfs_dqtest_t *d, | |
990 | xfs_dquot_t *dqp) | |
991 | { | |
992 | int err = 0; | |
1149d96a | 993 | if (be64_to_cpu(dqp->q_core.d_icount) != d->d_icount) { |
1da177e4 | 994 | xfs_qm_dqtest_failed(d, dqp, "icount mismatch", |
1149d96a | 995 | be64_to_cpu(dqp->q_core.d_icount), |
1da177e4 LT |
996 | d->d_icount, 0); |
997 | err++; | |
998 | } | |
1149d96a | 999 | if (be64_to_cpu(dqp->q_core.d_bcount) != d->d_bcount) { |
1da177e4 | 1000 | xfs_qm_dqtest_failed(d, dqp, "bcount mismatch", |
1149d96a | 1001 | be64_to_cpu(dqp->q_core.d_bcount), |
1da177e4 LT |
1002 | d->d_bcount, 0); |
1003 | err++; | |
1004 | } | |
1149d96a CH |
1005 | if (dqp->q_core.d_blk_softlimit && |
1006 | be64_to_cpu(dqp->q_core.d_bcount) >= | |
1007 | be64_to_cpu(dqp->q_core.d_blk_softlimit)) { | |
1da177e4 LT |
1008 | if (!dqp->q_core.d_btimer && dqp->q_core.d_id) { |
1009 | cmn_err(CE_DEBUG, | |
1010 | "%d [%s] [0x%p] BLK TIMER NOT STARTED", | |
1011 | d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount); | |
1012 | err++; | |
1013 | } | |
1014 | } | |
1149d96a CH |
1015 | if (dqp->q_core.d_ino_softlimit && |
1016 | be64_to_cpu(dqp->q_core.d_icount) >= | |
1017 | be64_to_cpu(dqp->q_core.d_ino_softlimit)) { | |
1da177e4 LT |
1018 | if (!dqp->q_core.d_itimer && dqp->q_core.d_id) { |
1019 | cmn_err(CE_DEBUG, | |
1020 | "%d [%s] [0x%p] INO TIMER NOT STARTED", | |
1021 | d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount); | |
1022 | err++; | |
1023 | } | |
1024 | } | |
1025 | #ifdef QUOTADEBUG | |
1026 | if (!err) { | |
1027 | cmn_err(CE_DEBUG, "%d [%s] [0x%p] qchecked", | |
c8ad20ff | 1028 | d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount); |
1da177e4 LT |
1029 | } |
1030 | #endif | |
1031 | return (err); | |
1032 | } | |
1033 | ||
1034 | STATIC void | |
1035 | xfs_dqtest_cmp( | |
1036 | xfs_dqtest_t *d) | |
1037 | { | |
1038 | xfs_dquot_t *dqp; | |
1039 | int error; | |
1040 | ||
1041 | /* xfs_qm_dqtest_print(d); */ | |
1042 | if ((error = xfs_qm_dqget(d->q_mount, NULL, d->d_id, d->dq_flags, 0, | |
1043 | &dqp))) { | |
1044 | xfs_qm_dqtest_failed(d, NULL, "dqget failed", 0, 0, error); | |
1045 | return; | |
1046 | } | |
1047 | xfs_dqtest_cmp2(d, dqp); | |
1048 | xfs_qm_dqput(dqp); | |
1049 | } | |
1050 | ||
1051 | STATIC int | |
1052 | xfs_qm_internalqcheck_dqget( | |
1053 | xfs_mount_t *mp, | |
1054 | xfs_dqid_t id, | |
1055 | uint type, | |
1056 | xfs_dqtest_t **O_dq) | |
1057 | { | |
1058 | xfs_dqtest_t *d; | |
1059 | xfs_dqhash_t *h; | |
1060 | ||
1061 | h = DQTEST_HASH(mp, id, type); | |
e6a81f13 | 1062 | list_for_each_entry(d, &h->qh_list, q_hashlist) { |
1da177e4 LT |
1063 | if (d->d_id == id && mp == d->q_mount) { |
1064 | *O_dq = d; | |
1065 | return (0); | |
1066 | } | |
1067 | } | |
1068 | d = kmem_zalloc(sizeof(xfs_dqtest_t), KM_SLEEP); | |
1069 | d->dq_flags = type; | |
1070 | d->d_id = id; | |
1071 | d->q_mount = mp; | |
1072 | d->q_hash = h; | |
e6a81f13 | 1073 | INIT_LIST_HEAD(&d->q_hashlist); |
1da177e4 LT |
1074 | xfs_qm_hashinsert(h, d); |
1075 | *O_dq = d; | |
1076 | return (0); | |
1077 | } | |
1078 | ||
1079 | STATIC void | |
1080 | xfs_qm_internalqcheck_get_dquots( | |
1081 | xfs_mount_t *mp, | |
1082 | xfs_dqid_t uid, | |
c8ad20ff | 1083 | xfs_dqid_t projid, |
1da177e4 LT |
1084 | xfs_dqid_t gid, |
1085 | xfs_dqtest_t **ud, | |
1086 | xfs_dqtest_t **gd) | |
1087 | { | |
1088 | if (XFS_IS_UQUOTA_ON(mp)) | |
1089 | xfs_qm_internalqcheck_dqget(mp, uid, XFS_DQ_USER, ud); | |
1090 | if (XFS_IS_GQUOTA_ON(mp)) | |
1091 | xfs_qm_internalqcheck_dqget(mp, gid, XFS_DQ_GROUP, gd); | |
c8ad20ff NS |
1092 | else if (XFS_IS_PQUOTA_ON(mp)) |
1093 | xfs_qm_internalqcheck_dqget(mp, projid, XFS_DQ_PROJ, gd); | |
1da177e4 LT |
1094 | } |
1095 | ||
1096 | ||
1097 | STATIC void | |
1098 | xfs_qm_internalqcheck_dqadjust( | |
1099 | xfs_inode_t *ip, | |
1100 | xfs_dqtest_t *d) | |
1101 | { | |
1102 | d->d_icount++; | |
1103 | d->d_bcount += (xfs_qcnt_t)ip->i_d.di_nblocks; | |
1104 | } | |
1105 | ||
1106 | STATIC int | |
1107 | xfs_qm_internalqcheck_adjust( | |
1108 | xfs_mount_t *mp, /* mount point for filesystem */ | |
1109 | xfs_ino_t ino, /* inode number to get data for */ | |
1110 | void __user *buffer, /* not used */ | |
1111 | int ubsize, /* not used */ | |
1112 | void *private_data, /* not used */ | |
1113 | xfs_daddr_t bno, /* starting block of inode cluster */ | |
1114 | int *ubused, /* not used */ | |
1115 | void *dip, /* not used */ | |
1116 | int *res) /* bulkstat result code */ | |
1117 | { | |
1118 | xfs_inode_t *ip; | |
1119 | xfs_dqtest_t *ud, *gd; | |
1120 | uint lock_flags; | |
1121 | boolean_t ipreleased; | |
1122 | int error; | |
1123 | ||
1124 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
1125 | ||
1126 | if (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino) { | |
1127 | *res = BULKSTAT_RV_NOTHING; | |
1128 | qdprintk("internalqcheck: ino=%llu, uqino=%llu, gqino=%llu\n", | |
1129 | (unsigned long long) ino, | |
1130 | (unsigned long long) mp->m_sb.sb_uquotino, | |
1131 | (unsigned long long) mp->m_sb.sb_gquotino); | |
1132 | return XFS_ERROR(EINVAL); | |
1133 | } | |
1134 | ipreleased = B_FALSE; | |
1135 | again: | |
1136 | lock_flags = XFS_ILOCK_SHARED; | |
1137 | if ((error = xfs_iget(mp, NULL, ino, 0, lock_flags, &ip, bno))) { | |
1138 | *res = BULKSTAT_RV_NOTHING; | |
1139 | return (error); | |
1140 | } | |
1141 | ||
1da177e4 LT |
1142 | /* |
1143 | * This inode can have blocks after eof which can get released | |
1144 | * when we send it to inactive. Since we don't check the dquot | |
1145 | * until the after all our calculations are done, we must get rid | |
1146 | * of those now. | |
1147 | */ | |
1148 | if (! ipreleased) { | |
1149 | xfs_iput(ip, lock_flags); | |
1150 | ipreleased = B_TRUE; | |
1151 | goto again; | |
1152 | } | |
1153 | xfs_qm_internalqcheck_get_dquots(mp, | |
1154 | (xfs_dqid_t) ip->i_d.di_uid, | |
c8ad20ff | 1155 | (xfs_dqid_t) ip->i_d.di_projid, |
1da177e4 LT |
1156 | (xfs_dqid_t) ip->i_d.di_gid, |
1157 | &ud, &gd); | |
1158 | if (XFS_IS_UQUOTA_ON(mp)) { | |
1159 | ASSERT(ud); | |
1160 | xfs_qm_internalqcheck_dqadjust(ip, ud); | |
1161 | } | |
c8ad20ff | 1162 | if (XFS_IS_OQUOTA_ON(mp)) { |
1da177e4 LT |
1163 | ASSERT(gd); |
1164 | xfs_qm_internalqcheck_dqadjust(ip, gd); | |
1165 | } | |
1166 | xfs_iput(ip, lock_flags); | |
1167 | *res = BULKSTAT_RV_DIDONE; | |
1168 | return (0); | |
1169 | } | |
1170 | ||
1171 | ||
1172 | /* PRIVATE, debugging */ | |
1173 | int | |
1174 | xfs_qm_internalqcheck( | |
1175 | xfs_mount_t *mp) | |
1176 | { | |
1177 | xfs_ino_t lastino; | |
1178 | int done, count; | |
1179 | int i; | |
1da177e4 LT |
1180 | int error; |
1181 | ||
1182 | lastino = 0; | |
1183 | qmtest_hashmask = 32; | |
1184 | count = 5; | |
1185 | done = 0; | |
1186 | qmtest_nfails = 0; | |
1187 | ||
1188 | if (! XFS_IS_QUOTA_ON(mp)) | |
1189 | return XFS_ERROR(ESRCH); | |
1190 | ||
a14a348b | 1191 | xfs_log_force(mp, XFS_LOG_SYNC); |
1da177e4 | 1192 | XFS_bflush(mp->m_ddev_targp); |
a14a348b | 1193 | xfs_log_force(mp, XFS_LOG_SYNC); |
1da177e4 LT |
1194 | XFS_bflush(mp->m_ddev_targp); |
1195 | ||
794ee1ba | 1196 | mutex_lock(&qcheck_lock); |
1da177e4 LT |
1197 | /* There should be absolutely no quota activity while this |
1198 | is going on. */ | |
1199 | qmtest_udqtab = kmem_zalloc(qmtest_hashmask * | |
1200 | sizeof(xfs_dqhash_t), KM_SLEEP); | |
1201 | qmtest_gdqtab = kmem_zalloc(qmtest_hashmask * | |
1202 | sizeof(xfs_dqhash_t), KM_SLEEP); | |
1203 | do { | |
1204 | /* | |
1205 | * Iterate thru all the inodes in the file system, | |
1206 | * adjusting the corresponding dquot counters | |
1207 | */ | |
1208 | if ((error = xfs_bulkstat(mp, &lastino, &count, | |
1209 | xfs_qm_internalqcheck_adjust, NULL, | |
1210 | 0, NULL, BULKSTAT_FG_IGET, &done))) { | |
1211 | break; | |
1212 | } | |
1213 | } while (! done); | |
1214 | if (error) { | |
1215 | cmn_err(CE_DEBUG, "Bulkstat returned error 0x%x", error); | |
1216 | } | |
1217 | cmn_err(CE_DEBUG, "Checking results against system dquots"); | |
1218 | for (i = 0; i < qmtest_hashmask; i++) { | |
e6a81f13 DC |
1219 | xfs_dqtest_t *d, *n; |
1220 | xfs_dqhash_t *h; | |
1221 | ||
1222 | h = &qmtest_udqtab[i]; | |
1223 | list_for_each_entry_safe(d, n, &h->qh_list, q_hashlist) { | |
1da177e4 | 1224 | xfs_dqtest_cmp(d); |
f0e2d93c | 1225 | kmem_free(d); |
1da177e4 | 1226 | } |
e6a81f13 DC |
1227 | h = &qmtest_gdqtab[i]; |
1228 | list_for_each_entry_safe(d, n, &h->qh_list, q_hashlist) { | |
1da177e4 | 1229 | xfs_dqtest_cmp(d); |
f0e2d93c | 1230 | kmem_free(d); |
1da177e4 LT |
1231 | } |
1232 | } | |
1233 | ||
1234 | if (qmtest_nfails) { | |
1235 | cmn_err(CE_DEBUG, "******** quotacheck failed ********"); | |
1236 | cmn_err(CE_DEBUG, "failures = %d", qmtest_nfails); | |
1237 | } else { | |
1238 | cmn_err(CE_DEBUG, "******** quotacheck successful! ********"); | |
1239 | } | |
f0e2d93c DV |
1240 | kmem_free(qmtest_udqtab); |
1241 | kmem_free(qmtest_gdqtab); | |
1da177e4 LT |
1242 | mutex_unlock(&qcheck_lock); |
1243 | return (qmtest_nfails); | |
1244 | } | |
1245 | ||
1246 | #endif /* DEBUG */ |