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 LT |
47 | #include "xfs_rw.h" |
48 | #include "xfs_acl.h" | |
1da177e4 LT |
49 | #include "xfs_attr.h" |
50 | #include "xfs_buf_item.h" | |
51 | #include "xfs_utils.h" | |
1da177e4 LT |
52 | #include "xfs_qm.h" |
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 LT |
81 | { |
82 | uint dqtype; | |
1da177e4 LT |
83 | int error; |
84 | uint inactivate_flags; | |
85 | xfs_qoff_logitem_t *qoffstart; | |
86 | int nculprits; | |
87 | ||
1da177e4 LT |
88 | /* |
89 | * No file system can have quotas enabled on disk but not in core. | |
90 | * Note that quota utilities (like quotaoff) _expect_ | |
91 | * errno == EEXIST here. | |
92 | */ | |
93 | if ((mp->m_qflags & flags) == 0) | |
94 | return XFS_ERROR(EEXIST); | |
95 | error = 0; | |
96 | ||
97 | flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD); | |
98 | ||
99 | /* | |
100 | * We don't want to deal with two quotaoffs messing up each other, | |
101 | * so we're going to serialize it. quotaoff isn't exactly a performance | |
102 | * critical thing. | |
103 | * If quotaoff, then we must be dealing with the root filesystem. | |
104 | */ | |
105 | ASSERT(mp->m_quotainfo); | |
106 | if (mp->m_quotainfo) | |
794ee1ba | 107 | mutex_lock(&(XFS_QI_QOFFLOCK(mp))); |
1da177e4 LT |
108 | |
109 | ASSERT(mp->m_quotainfo); | |
110 | ||
111 | /* | |
112 | * If we're just turning off quota enforcement, change mp and go. | |
113 | */ | |
114 | if ((flags & XFS_ALL_QUOTA_ACCT) == 0) { | |
115 | mp->m_qflags &= ~(flags); | |
116 | ||
3685c2a1 | 117 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 118 | mp->m_sb.sb_qflags = mp->m_qflags; |
3685c2a1 | 119 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
120 | mutex_unlock(&(XFS_QI_QOFFLOCK(mp))); |
121 | ||
122 | /* XXX what to do if error ? Revert back to old vals incore ? */ | |
123 | error = xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS); | |
124 | return (error); | |
125 | } | |
126 | ||
127 | dqtype = 0; | |
128 | inactivate_flags = 0; | |
129 | /* | |
130 | * If accounting is off, we must turn enforcement off, clear the | |
131 | * quota 'CHKD' certificate to make it known that we have to | |
132 | * do a quotacheck the next time this quota is turned on. | |
133 | */ | |
134 | if (flags & XFS_UQUOTA_ACCT) { | |
135 | dqtype |= XFS_QMOPT_UQUOTA; | |
136 | flags |= (XFS_UQUOTA_CHKD | XFS_UQUOTA_ENFD); | |
137 | inactivate_flags |= XFS_UQUOTA_ACTIVE; | |
138 | } | |
139 | if (flags & XFS_GQUOTA_ACCT) { | |
140 | dqtype |= XFS_QMOPT_GQUOTA; | |
c8ad20ff | 141 | flags |= (XFS_OQUOTA_CHKD | XFS_OQUOTA_ENFD); |
1da177e4 | 142 | inactivate_flags |= XFS_GQUOTA_ACTIVE; |
c8ad20ff NS |
143 | } else if (flags & XFS_PQUOTA_ACCT) { |
144 | dqtype |= XFS_QMOPT_PQUOTA; | |
145 | flags |= (XFS_OQUOTA_CHKD | XFS_OQUOTA_ENFD); | |
146 | inactivate_flags |= XFS_PQUOTA_ACTIVE; | |
1da177e4 LT |
147 | } |
148 | ||
149 | /* | |
150 | * Nothing to do? Don't complain. This happens when we're just | |
151 | * turning off quota enforcement. | |
152 | */ | |
153 | if ((mp->m_qflags & flags) == 0) { | |
154 | mutex_unlock(&(XFS_QI_QOFFLOCK(mp))); | |
155 | return (0); | |
156 | } | |
157 | ||
158 | /* | |
159 | * Write the LI_QUOTAOFF log record, and do SB changes atomically, | |
cb6edc26 DC |
160 | * and synchronously. If we fail to write, we should abort the |
161 | * operation as it cannot be recovered safely if we crash. | |
1da177e4 | 162 | */ |
cb6edc26 DC |
163 | error = xfs_qm_log_quotaoff(mp, &qoffstart, flags); |
164 | if (error) | |
165 | goto out_error; | |
1da177e4 LT |
166 | |
167 | /* | |
168 | * Next we clear the XFS_MOUNT_*DQ_ACTIVE bit(s) in the mount struct | |
169 | * to take care of the race between dqget and quotaoff. We don't take | |
170 | * any special locks to reset these bits. All processes need to check | |
171 | * these bits *after* taking inode lock(s) to see if the particular | |
172 | * quota type is in the process of being turned off. If *ACTIVE, it is | |
173 | * guaranteed that all dquot structures and all quotainode ptrs will all | |
174 | * stay valid as long as that inode is kept locked. | |
175 | * | |
176 | * There is no turning back after this. | |
177 | */ | |
178 | mp->m_qflags &= ~inactivate_flags; | |
179 | ||
180 | /* | |
181 | * Give back all the dquot reference(s) held by inodes. | |
182 | * Here we go thru every single incore inode in this file system, and | |
183 | * do a dqrele on the i_udquot/i_gdquot that it may have. | |
184 | * Essentially, as long as somebody has an inode locked, this guarantees | |
185 | * that quotas will not be turned off. This is handy because in a | |
186 | * transaction once we lock the inode(s) and check for quotaon, we can | |
187 | * depend on the quota inodes (and other things) being valid as long as | |
188 | * we keep the lock(s). | |
189 | */ | |
190 | xfs_qm_dqrele_all_inodes(mp, flags); | |
191 | ||
192 | /* | |
193 | * Next we make the changes in the quota flag in the mount struct. | |
194 | * This isn't protected by a particular lock directly, because we | |
195 | * don't want to take a mrlock everytime we depend on quotas being on. | |
196 | */ | |
197 | mp->m_qflags &= ~(flags); | |
198 | ||
199 | /* | |
200 | * Go through all the dquots of this file system and purge them, | |
201 | * according to what was turned off. We may not be able to get rid | |
202 | * of all dquots, because dquots can have temporary references that | |
203 | * are not attached to inodes. eg. xfs_setattr, xfs_create. | |
204 | * So, if we couldn't purge all the dquots from the filesystem, | |
205 | * we can't get rid of the incore data structures. | |
206 | */ | |
207 | while ((nculprits = xfs_qm_dqpurge_all(mp, dqtype|XFS_QMOPT_QUOTAOFF))) | |
208 | delay(10 * nculprits); | |
209 | ||
210 | /* | |
211 | * Transactions that had started before ACTIVE state bit was cleared | |
212 | * could have logged many dquots, so they'd have higher LSNs than | |
213 | * the first QUOTAOFF log record does. If we happen to crash when | |
214 | * the tail of the log has gone past the QUOTAOFF record, but | |
215 | * before the last dquot modification, those dquots __will__ | |
216 | * recover, and that's not good. | |
217 | * | |
218 | * So, we have QUOTAOFF start and end logitems; the start | |
219 | * logitem won't get overwritten until the end logitem appears... | |
220 | */ | |
cb6edc26 DC |
221 | error = xfs_qm_log_quotaoff_end(mp, qoffstart, flags); |
222 | if (error) { | |
223 | /* We're screwed now. Shutdown is the only option. */ | |
224 | xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE); | |
225 | goto out_error; | |
226 | } | |
1da177e4 LT |
227 | |
228 | /* | |
229 | * If quotas is completely disabled, close shop. | |
230 | */ | |
c8ad20ff NS |
231 | if (((flags & XFS_MOUNT_QUOTA_ALL) == XFS_MOUNT_QUOTA_SET1) || |
232 | ((flags & XFS_MOUNT_QUOTA_ALL) == XFS_MOUNT_QUOTA_SET2)) { | |
1da177e4 LT |
233 | mutex_unlock(&(XFS_QI_QOFFLOCK(mp))); |
234 | xfs_qm_destroy_quotainfo(mp); | |
235 | return (0); | |
236 | } | |
237 | ||
238 | /* | |
239 | * Release our quotainode references, and vn_purge them, | |
240 | * if we don't need them anymore. | |
241 | */ | |
242 | if ((dqtype & XFS_QMOPT_UQUOTA) && XFS_QI_UQIP(mp)) { | |
26cc0021 | 243 | IRELE(XFS_QI_UQIP(mp)); |
1da177e4 LT |
244 | XFS_QI_UQIP(mp) = NULL; |
245 | } | |
c8ad20ff | 246 | if ((dqtype & (XFS_QMOPT_GQUOTA|XFS_QMOPT_PQUOTA)) && XFS_QI_GQIP(mp)) { |
26cc0021 | 247 | IRELE(XFS_QI_GQIP(mp)); |
1da177e4 LT |
248 | XFS_QI_GQIP(mp) = NULL; |
249 | } | |
cb6edc26 | 250 | out_error: |
1da177e4 LT |
251 | mutex_unlock(&(XFS_QI_QOFFLOCK(mp))); |
252 | ||
253 | return (error); | |
254 | } | |
255 | ||
fcafb71b | 256 | int |
1da177e4 LT |
257 | xfs_qm_scall_trunc_qfiles( |
258 | xfs_mount_t *mp, | |
259 | uint flags) | |
260 | { | |
88ab0208 | 261 | int error = 0, error2 = 0; |
1da177e4 LT |
262 | xfs_inode_t *qip; |
263 | ||
62118709 | 264 | if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0) { |
1da177e4 LT |
265 | qdprintk("qtrunc flags=%x m_qflags=%x\n", flags, mp->m_qflags); |
266 | return XFS_ERROR(EINVAL); | |
267 | } | |
268 | ||
269 | if ((flags & XFS_DQ_USER) && mp->m_sb.sb_uquotino != NULLFSINO) { | |
270 | error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 0, 0, &qip, 0); | |
88ab0208 DC |
271 | if (!error) { |
272 | error = xfs_truncate_file(mp, qip); | |
43355099 | 273 | IRELE(qip); |
1da177e4 LT |
274 | } |
275 | } | |
276 | ||
c8ad20ff NS |
277 | if ((flags & (XFS_DQ_GROUP|XFS_DQ_PROJ)) && |
278 | mp->m_sb.sb_gquotino != NULLFSINO) { | |
88ab0208 DC |
279 | error2 = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 0, 0, &qip, 0); |
280 | if (!error2) { | |
281 | error2 = xfs_truncate_file(mp, qip); | |
43355099 | 282 | IRELE(qip); |
1da177e4 LT |
283 | } |
284 | } | |
285 | ||
88ab0208 | 286 | return error ? error : error2; |
1da177e4 LT |
287 | } |
288 | ||
289 | ||
290 | /* | |
291 | * Switch on (a given) quota enforcement for a filesystem. This takes | |
292 | * effect immediately. | |
293 | * (Switching on quota accounting must be done at mount time.) | |
294 | */ | |
fcafb71b | 295 | int |
1da177e4 LT |
296 | xfs_qm_scall_quotaon( |
297 | xfs_mount_t *mp, | |
298 | uint flags) | |
299 | { | |
300 | int error; | |
1da177e4 LT |
301 | uint qf; |
302 | uint accflags; | |
303 | __int64_t sbflags; | |
304 | ||
1da177e4 LT |
305 | flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD); |
306 | /* | |
307 | * Switching on quota accounting must be done at mount time. | |
308 | */ | |
309 | accflags = flags & XFS_ALL_QUOTA_ACCT; | |
310 | flags &= ~(XFS_ALL_QUOTA_ACCT); | |
311 | ||
312 | sbflags = 0; | |
313 | ||
314 | if (flags == 0) { | |
315 | qdprintk("quotaon: zero flags, m_qflags=%x\n", mp->m_qflags); | |
316 | return XFS_ERROR(EINVAL); | |
317 | } | |
318 | ||
319 | /* No fs can turn on quotas with a delayed effect */ | |
320 | ASSERT((flags & XFS_ALL_QUOTA_ACCT) == 0); | |
321 | ||
322 | /* | |
323 | * Can't enforce without accounting. We check the superblock | |
324 | * qflags here instead of m_qflags because rootfs can have | |
325 | * quota acct on ondisk without m_qflags' knowing. | |
326 | */ | |
327 | if (((flags & XFS_UQUOTA_ACCT) == 0 && | |
328 | (mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) == 0 && | |
329 | (flags & XFS_UQUOTA_ENFD)) | |
330 | || | |
c8ad20ff NS |
331 | ((flags & XFS_PQUOTA_ACCT) == 0 && |
332 | (mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 && | |
424ea91b | 333 | (flags & XFS_GQUOTA_ACCT) == 0 && |
1da177e4 | 334 | (mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 && |
c8ad20ff | 335 | (flags & XFS_OQUOTA_ENFD))) { |
1da177e4 LT |
336 | qdprintk("Can't enforce without acct, flags=%x sbflags=%x\n", |
337 | flags, mp->m_sb.sb_qflags); | |
338 | return XFS_ERROR(EINVAL); | |
339 | } | |
340 | /* | |
341 | * If everything's upto-date incore, then don't waste time. | |
342 | */ | |
343 | if ((mp->m_qflags & flags) == flags) | |
344 | return XFS_ERROR(EEXIST); | |
345 | ||
346 | /* | |
347 | * Change sb_qflags on disk but not incore mp->qflags | |
348 | * if this is the root filesystem. | |
349 | */ | |
3685c2a1 | 350 | spin_lock(&mp->m_sb_lock); |
1da177e4 LT |
351 | qf = mp->m_sb.sb_qflags; |
352 | mp->m_sb.sb_qflags = qf | flags; | |
3685c2a1 | 353 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
354 | |
355 | /* | |
356 | * There's nothing to change if it's the same. | |
357 | */ | |
358 | if ((qf & flags) == flags && sbflags == 0) | |
359 | return XFS_ERROR(EEXIST); | |
360 | sbflags |= XFS_SB_QFLAGS; | |
361 | ||
362 | if ((error = xfs_qm_write_sb_changes(mp, sbflags))) | |
363 | return (error); | |
364 | /* | |
365 | * If we aren't trying to switch on quota enforcement, we are done. | |
366 | */ | |
367 | if (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) != | |
368 | (mp->m_qflags & XFS_UQUOTA_ACCT)) || | |
c8ad20ff NS |
369 | ((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) != |
370 | (mp->m_qflags & XFS_PQUOTA_ACCT)) || | |
371 | ((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) != | |
372 | (mp->m_qflags & XFS_GQUOTA_ACCT)) || | |
1da177e4 LT |
373 | (flags & XFS_ALL_QUOTA_ENFD) == 0) |
374 | return (0); | |
375 | ||
376 | if (! XFS_IS_QUOTA_RUNNING(mp)) | |
377 | return XFS_ERROR(ESRCH); | |
378 | ||
379 | /* | |
380 | * Switch on quota enforcement in core. | |
381 | */ | |
794ee1ba | 382 | mutex_lock(&(XFS_QI_QOFFLOCK(mp))); |
1da177e4 LT |
383 | mp->m_qflags |= (flags & XFS_ALL_QUOTA_ENFD); |
384 | mutex_unlock(&(XFS_QI_QOFFLOCK(mp))); | |
385 | ||
386 | return (0); | |
387 | } | |
388 | ||
389 | ||
1da177e4 LT |
390 | /* |
391 | * Return quota status information, such as uquota-off, enforcements, etc. | |
392 | */ | |
fcafb71b | 393 | int |
1da177e4 LT |
394 | xfs_qm_scall_getqstat( |
395 | xfs_mount_t *mp, | |
396 | fs_quota_stat_t *out) | |
397 | { | |
398 | xfs_inode_t *uip, *gip; | |
399 | boolean_t tempuqip, tempgqip; | |
400 | ||
401 | uip = gip = NULL; | |
402 | tempuqip = tempgqip = B_FALSE; | |
403 | memset(out, 0, sizeof(fs_quota_stat_t)); | |
404 | ||
405 | out->qs_version = FS_QSTAT_VERSION; | |
62118709 | 406 | if (!xfs_sb_version_hasquota(&mp->m_sb)) { |
1da177e4 LT |
407 | out->qs_uquota.qfs_ino = NULLFSINO; |
408 | out->qs_gquota.qfs_ino = NULLFSINO; | |
409 | return (0); | |
410 | } | |
411 | out->qs_flags = (__uint16_t) xfs_qm_export_flags(mp->m_qflags & | |
412 | (XFS_ALL_QUOTA_ACCT| | |
413 | XFS_ALL_QUOTA_ENFD)); | |
414 | out->qs_pad = 0; | |
415 | out->qs_uquota.qfs_ino = mp->m_sb.sb_uquotino; | |
416 | out->qs_gquota.qfs_ino = mp->m_sb.sb_gquotino; | |
417 | ||
418 | if (mp->m_quotainfo) { | |
419 | uip = mp->m_quotainfo->qi_uquotaip; | |
420 | gip = mp->m_quotainfo->qi_gquotaip; | |
421 | } | |
422 | if (!uip && mp->m_sb.sb_uquotino != NULLFSINO) { | |
423 | if (xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, | |
424 | 0, 0, &uip, 0) == 0) | |
425 | tempuqip = B_TRUE; | |
426 | } | |
427 | if (!gip && mp->m_sb.sb_gquotino != NULLFSINO) { | |
428 | if (xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, | |
429 | 0, 0, &gip, 0) == 0) | |
430 | tempgqip = B_TRUE; | |
431 | } | |
432 | if (uip) { | |
433 | out->qs_uquota.qfs_nblks = uip->i_d.di_nblocks; | |
434 | out->qs_uquota.qfs_nextents = uip->i_d.di_nextents; | |
435 | if (tempuqip) | |
43355099 | 436 | IRELE(uip); |
1da177e4 LT |
437 | } |
438 | if (gip) { | |
439 | out->qs_gquota.qfs_nblks = gip->i_d.di_nblocks; | |
440 | out->qs_gquota.qfs_nextents = gip->i_d.di_nextents; | |
441 | if (tempgqip) | |
43355099 | 442 | IRELE(gip); |
1da177e4 LT |
443 | } |
444 | if (mp->m_quotainfo) { | |
445 | out->qs_incoredqs = XFS_QI_MPLNDQUOTS(mp); | |
446 | out->qs_btimelimit = XFS_QI_BTIMELIMIT(mp); | |
447 | out->qs_itimelimit = XFS_QI_ITIMELIMIT(mp); | |
448 | out->qs_rtbtimelimit = XFS_QI_RTBTIMELIMIT(mp); | |
449 | out->qs_bwarnlimit = XFS_QI_BWARNLIMIT(mp); | |
450 | out->qs_iwarnlimit = XFS_QI_IWARNLIMIT(mp); | |
451 | } | |
452 | return (0); | |
453 | } | |
454 | ||
455 | /* | |
456 | * Adjust quota limits, and start/stop timers accordingly. | |
457 | */ | |
fcafb71b | 458 | int |
1da177e4 LT |
459 | xfs_qm_scall_setqlim( |
460 | xfs_mount_t *mp, | |
461 | xfs_dqid_t id, | |
462 | uint type, | |
463 | fs_disk_quota_t *newlim) | |
464 | { | |
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 | ||
754002b4 NS |
471 | if ((newlim->d_fieldmask & |
472 | (FS_DQ_LIMIT_MASK|FS_DQ_TIMER_MASK|FS_DQ_WARNS_MASK)) == 0) | |
1da177e4 LT |
473 | return (0); |
474 | ||
475 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SETQLIM); | |
476 | if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_disk_dquot_t) + 128, | |
477 | 0, 0, XFS_DEFAULT_LOG_COUNT))) { | |
478 | xfs_trans_cancel(tp, 0); | |
479 | return (error); | |
480 | } | |
481 | ||
482 | /* | |
483 | * We don't want to race with a quotaoff so take the quotaoff lock. | |
484 | * (We don't hold an inode lock, so there's nothing else to stop | |
485 | * a quotaoff from happening). (XXXThis doesn't currently happen | |
486 | * because we take the vfslock before calling xfs_qm_sysent). | |
487 | */ | |
794ee1ba | 488 | mutex_lock(&(XFS_QI_QOFFLOCK(mp))); |
1da177e4 LT |
489 | |
490 | /* | |
491 | * Get the dquot (locked), and join it to the transaction. | |
492 | * Allocate the dquot if this doesn't exist. | |
493 | */ | |
494 | if ((error = xfs_qm_dqget(mp, NULL, id, type, XFS_QMOPT_DQALLOC, &dqp))) { | |
495 | xfs_trans_cancel(tp, XFS_TRANS_ABORT); | |
496 | mutex_unlock(&(XFS_QI_QOFFLOCK(mp))); | |
497 | ASSERT(error != ENOENT); | |
498 | return (error); | |
499 | } | |
500 | xfs_dqtrace_entry(dqp, "Q_SETQLIM: AFT DQGET"); | |
501 | xfs_trans_dqjoin(tp, dqp); | |
502 | ddq = &dqp->q_core; | |
503 | ||
504 | /* | |
505 | * Make sure that hardlimits are >= soft limits before changing. | |
506 | */ | |
507 | hard = (newlim->d_fieldmask & FS_DQ_BHARD) ? | |
508 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_hardlimit) : | |
1149d96a | 509 | be64_to_cpu(ddq->d_blk_hardlimit); |
1da177e4 LT |
510 | soft = (newlim->d_fieldmask & FS_DQ_BSOFT) ? |
511 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_softlimit) : | |
1149d96a | 512 | be64_to_cpu(ddq->d_blk_softlimit); |
1da177e4 | 513 | if (hard == 0 || hard >= soft) { |
1149d96a CH |
514 | ddq->d_blk_hardlimit = cpu_to_be64(hard); |
515 | ddq->d_blk_softlimit = cpu_to_be64(soft); | |
1da177e4 LT |
516 | if (id == 0) { |
517 | mp->m_quotainfo->qi_bhardlimit = hard; | |
518 | mp->m_quotainfo->qi_bsoftlimit = soft; | |
519 | } | |
520 | } else { | |
521 | qdprintk("blkhard %Ld < blksoft %Ld\n", hard, soft); | |
522 | } | |
523 | hard = (newlim->d_fieldmask & FS_DQ_RTBHARD) ? | |
524 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_hardlimit) : | |
1149d96a | 525 | be64_to_cpu(ddq->d_rtb_hardlimit); |
1da177e4 LT |
526 | soft = (newlim->d_fieldmask & FS_DQ_RTBSOFT) ? |
527 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_softlimit) : | |
1149d96a | 528 | be64_to_cpu(ddq->d_rtb_softlimit); |
1da177e4 | 529 | if (hard == 0 || hard >= soft) { |
1149d96a CH |
530 | ddq->d_rtb_hardlimit = cpu_to_be64(hard); |
531 | ddq->d_rtb_softlimit = cpu_to_be64(soft); | |
1da177e4 LT |
532 | if (id == 0) { |
533 | mp->m_quotainfo->qi_rtbhardlimit = hard; | |
534 | mp->m_quotainfo->qi_rtbsoftlimit = soft; | |
535 | } | |
536 | } else { | |
537 | qdprintk("rtbhard %Ld < rtbsoft %Ld\n", hard, soft); | |
538 | } | |
539 | ||
540 | hard = (newlim->d_fieldmask & FS_DQ_IHARD) ? | |
541 | (xfs_qcnt_t) newlim->d_ino_hardlimit : | |
1149d96a | 542 | be64_to_cpu(ddq->d_ino_hardlimit); |
1da177e4 LT |
543 | soft = (newlim->d_fieldmask & FS_DQ_ISOFT) ? |
544 | (xfs_qcnt_t) newlim->d_ino_softlimit : | |
1149d96a | 545 | be64_to_cpu(ddq->d_ino_softlimit); |
1da177e4 | 546 | if (hard == 0 || hard >= soft) { |
1149d96a CH |
547 | ddq->d_ino_hardlimit = cpu_to_be64(hard); |
548 | ddq->d_ino_softlimit = cpu_to_be64(soft); | |
1da177e4 LT |
549 | if (id == 0) { |
550 | mp->m_quotainfo->qi_ihardlimit = hard; | |
551 | mp->m_quotainfo->qi_isoftlimit = soft; | |
552 | } | |
553 | } else { | |
554 | qdprintk("ihard %Ld < isoft %Ld\n", hard, soft); | |
555 | } | |
556 | ||
754002b4 NS |
557 | /* |
558 | * Update warnings counter(s) if requested | |
559 | */ | |
560 | if (newlim->d_fieldmask & FS_DQ_BWARNS) | |
1149d96a | 561 | ddq->d_bwarns = cpu_to_be16(newlim->d_bwarns); |
754002b4 | 562 | if (newlim->d_fieldmask & FS_DQ_IWARNS) |
1149d96a | 563 | ddq->d_iwarns = cpu_to_be16(newlim->d_iwarns); |
754002b4 | 564 | if (newlim->d_fieldmask & FS_DQ_RTBWARNS) |
1149d96a | 565 | ddq->d_rtbwarns = cpu_to_be16(newlim->d_rtbwarns); |
754002b4 | 566 | |
1da177e4 LT |
567 | if (id == 0) { |
568 | /* | |
569 | * Timelimits for the super user set the relative time | |
570 | * the other users can be over quota for this file system. | |
571 | * If it is zero a default is used. Ditto for the default | |
754002b4 NS |
572 | * soft and hard limit values (already done, above), and |
573 | * for warnings. | |
1da177e4 LT |
574 | */ |
575 | if (newlim->d_fieldmask & FS_DQ_BTIMER) { | |
576 | mp->m_quotainfo->qi_btimelimit = newlim->d_btimer; | |
1149d96a | 577 | ddq->d_btimer = cpu_to_be32(newlim->d_btimer); |
1da177e4 LT |
578 | } |
579 | if (newlim->d_fieldmask & FS_DQ_ITIMER) { | |
580 | mp->m_quotainfo->qi_itimelimit = newlim->d_itimer; | |
1149d96a | 581 | ddq->d_itimer = cpu_to_be32(newlim->d_itimer); |
1da177e4 LT |
582 | } |
583 | if (newlim->d_fieldmask & FS_DQ_RTBTIMER) { | |
584 | mp->m_quotainfo->qi_rtbtimelimit = newlim->d_rtbtimer; | |
1149d96a | 585 | ddq->d_rtbtimer = cpu_to_be32(newlim->d_rtbtimer); |
1da177e4 | 586 | } |
754002b4 NS |
587 | if (newlim->d_fieldmask & FS_DQ_BWARNS) |
588 | mp->m_quotainfo->qi_bwarnlimit = newlim->d_bwarns; | |
589 | if (newlim->d_fieldmask & FS_DQ_IWARNS) | |
590 | mp->m_quotainfo->qi_iwarnlimit = newlim->d_iwarns; | |
591 | if (newlim->d_fieldmask & FS_DQ_RTBWARNS) | |
592 | mp->m_quotainfo->qi_rtbwarnlimit = newlim->d_rtbwarns; | |
593 | } else { | |
1da177e4 LT |
594 | /* |
595 | * If the user is now over quota, start the timelimit. | |
596 | * The user will not be 'warned'. | |
597 | * Note that we keep the timers ticking, whether enforcement | |
598 | * is on or off. We don't really want to bother with iterating | |
599 | * over all ondisk dquots and turning the timers on/off. | |
600 | */ | |
601 | xfs_qm_adjust_dqtimers(mp, ddq); | |
602 | } | |
603 | dqp->dq_flags |= XFS_DQ_DIRTY; | |
604 | xfs_trans_log_dquot(tp, dqp); | |
605 | ||
606 | xfs_dqtrace_entry(dqp, "Q_SETQLIM: COMMIT"); | |
e5720eec | 607 | error = xfs_trans_commit(tp, 0); |
1da177e4 LT |
608 | xfs_qm_dqprint(dqp); |
609 | xfs_qm_dqrele(dqp); | |
610 | mutex_unlock(&(XFS_QI_QOFFLOCK(mp))); | |
611 | ||
e5720eec | 612 | return error; |
1da177e4 LT |
613 | } |
614 | ||
fcafb71b | 615 | int |
1da177e4 LT |
616 | xfs_qm_scall_getquota( |
617 | xfs_mount_t *mp, | |
618 | xfs_dqid_t id, | |
619 | uint type, | |
620 | fs_disk_quota_t *out) | |
621 | { | |
622 | xfs_dquot_t *dqp; | |
623 | int error; | |
624 | ||
625 | /* | |
626 | * Try to get the dquot. We don't want it allocated on disk, so | |
627 | * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't | |
628 | * exist, we'll get ENOENT back. | |
629 | */ | |
630 | if ((error = xfs_qm_dqget(mp, NULL, id, type, 0, &dqp))) { | |
631 | return (error); | |
632 | } | |
633 | ||
634 | xfs_dqtrace_entry(dqp, "Q_GETQUOTA SUCCESS"); | |
635 | /* | |
636 | * If everything's NULL, this dquot doesn't quite exist as far as | |
637 | * our utility programs are concerned. | |
638 | */ | |
639 | if (XFS_IS_DQUOT_UNINITIALIZED(dqp)) { | |
640 | xfs_qm_dqput(dqp); | |
641 | return XFS_ERROR(ENOENT); | |
642 | } | |
643 | /* xfs_qm_dqprint(dqp); */ | |
644 | /* | |
645 | * Convert the disk dquot to the exportable format | |
646 | */ | |
647 | xfs_qm_export_dquot(mp, &dqp->q_core, out); | |
648 | xfs_qm_dqput(dqp); | |
649 | return (error ? XFS_ERROR(EFAULT) : 0); | |
650 | } | |
651 | ||
652 | ||
653 | STATIC int | |
654 | xfs_qm_log_quotaoff_end( | |
655 | xfs_mount_t *mp, | |
656 | xfs_qoff_logitem_t *startqoff, | |
657 | uint flags) | |
658 | { | |
c8ad20ff | 659 | xfs_trans_t *tp; |
1da177e4 | 660 | int error; |
c8ad20ff | 661 | xfs_qoff_logitem_t *qoffi; |
1da177e4 LT |
662 | |
663 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF_END); | |
664 | ||
665 | if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_qoff_logitem_t) * 2, | |
666 | 0, 0, XFS_DEFAULT_LOG_COUNT))) { | |
667 | xfs_trans_cancel(tp, 0); | |
668 | return (error); | |
669 | } | |
670 | ||
671 | qoffi = xfs_trans_get_qoff_item(tp, startqoff, | |
672 | flags & XFS_ALL_QUOTA_ACCT); | |
673 | xfs_trans_log_quotaoff_item(tp, qoffi); | |
674 | ||
675 | /* | |
676 | * We have to make sure that the transaction is secure on disk before we | |
677 | * return and actually stop quota accounting. So, make it synchronous. | |
678 | * We don't care about quotoff's performance. | |
679 | */ | |
680 | xfs_trans_set_sync(tp); | |
1c72bf90 | 681 | error = xfs_trans_commit(tp, 0); |
1da177e4 LT |
682 | return (error); |
683 | } | |
684 | ||
685 | ||
686 | STATIC int | |
687 | xfs_qm_log_quotaoff( | |
688 | xfs_mount_t *mp, | |
689 | xfs_qoff_logitem_t **qoffstartp, | |
690 | uint flags) | |
691 | { | |
692 | xfs_trans_t *tp; | |
693 | int error; | |
1da177e4 LT |
694 | xfs_qoff_logitem_t *qoffi=NULL; |
695 | uint oldsbqflag=0; | |
696 | ||
697 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF); | |
698 | if ((error = xfs_trans_reserve(tp, 0, | |
699 | sizeof(xfs_qoff_logitem_t) * 2 + | |
700 | mp->m_sb.sb_sectsize + 128, | |
701 | 0, | |
702 | 0, | |
703 | XFS_DEFAULT_LOG_COUNT))) { | |
704 | goto error0; | |
705 | } | |
706 | ||
707 | qoffi = xfs_trans_get_qoff_item(tp, NULL, flags & XFS_ALL_QUOTA_ACCT); | |
708 | xfs_trans_log_quotaoff_item(tp, qoffi); | |
709 | ||
3685c2a1 | 710 | spin_lock(&mp->m_sb_lock); |
1da177e4 LT |
711 | oldsbqflag = mp->m_sb.sb_qflags; |
712 | mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL; | |
3685c2a1 | 713 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
714 | |
715 | xfs_mod_sb(tp, XFS_SB_QFLAGS); | |
716 | ||
717 | /* | |
718 | * We have to make sure that the transaction is secure on disk before we | |
719 | * return and actually stop quota accounting. So, make it synchronous. | |
720 | * We don't care about quotoff's performance. | |
721 | */ | |
722 | xfs_trans_set_sync(tp); | |
1c72bf90 | 723 | error = xfs_trans_commit(tp, 0); |
1da177e4 LT |
724 | |
725 | error0: | |
726 | if (error) { | |
727 | xfs_trans_cancel(tp, 0); | |
728 | /* | |
729 | * No one else is modifying sb_qflags, so this is OK. | |
730 | * We still hold the quotaofflock. | |
731 | */ | |
3685c2a1 | 732 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 733 | mp->m_sb.sb_qflags = oldsbqflag; |
3685c2a1 | 734 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
735 | } |
736 | *qoffstartp = qoffi; | |
737 | return (error); | |
738 | } | |
739 | ||
740 | ||
741 | /* | |
742 | * Translate an internal style on-disk-dquot to the exportable format. | |
743 | * The main differences are that the counters/limits are all in Basic | |
744 | * Blocks (BBs) instead of the internal FSBs, and all on-disk data has | |
745 | * to be converted to the native endianness. | |
746 | */ | |
747 | STATIC void | |
748 | xfs_qm_export_dquot( | |
749 | xfs_mount_t *mp, | |
750 | xfs_disk_dquot_t *src, | |
751 | struct fs_disk_quota *dst) | |
752 | { | |
753 | memset(dst, 0, sizeof(*dst)); | |
754 | dst->d_version = FS_DQUOT_VERSION; /* different from src->d_version */ | |
1149d96a CH |
755 | dst->d_flags = xfs_qm_export_qtype_flags(src->d_flags); |
756 | dst->d_id = be32_to_cpu(src->d_id); | |
757 | dst->d_blk_hardlimit = | |
758 | XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_blk_hardlimit)); | |
759 | dst->d_blk_softlimit = | |
760 | XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_blk_softlimit)); | |
761 | dst->d_ino_hardlimit = be64_to_cpu(src->d_ino_hardlimit); | |
762 | dst->d_ino_softlimit = be64_to_cpu(src->d_ino_softlimit); | |
763 | dst->d_bcount = XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_bcount)); | |
764 | dst->d_icount = be64_to_cpu(src->d_icount); | |
765 | dst->d_btimer = be32_to_cpu(src->d_btimer); | |
766 | dst->d_itimer = be32_to_cpu(src->d_itimer); | |
767 | dst->d_iwarns = be16_to_cpu(src->d_iwarns); | |
768 | dst->d_bwarns = be16_to_cpu(src->d_bwarns); | |
769 | dst->d_rtb_hardlimit = | |
770 | XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtb_hardlimit)); | |
771 | dst->d_rtb_softlimit = | |
772 | XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtb_softlimit)); | |
773 | dst->d_rtbcount = XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtbcount)); | |
774 | dst->d_rtbtimer = be32_to_cpu(src->d_rtbtimer); | |
775 | dst->d_rtbwarns = be16_to_cpu(src->d_rtbwarns); | |
1da177e4 LT |
776 | |
777 | /* | |
778 | * Internally, we don't reset all the timers when quota enforcement | |
c41564b5 | 779 | * gets turned off. No need to confuse the user level code, |
1da177e4 LT |
780 | * so return zeroes in that case. |
781 | */ | |
e6d29426 KO |
782 | if ((!XFS_IS_UQUOTA_ENFORCED(mp) && src->d_flags == XFS_DQ_USER) || |
783 | (!XFS_IS_OQUOTA_ENFORCED(mp) && | |
784 | (src->d_flags & (XFS_DQ_PROJ | XFS_DQ_GROUP)))) { | |
1da177e4 LT |
785 | dst->d_btimer = 0; |
786 | dst->d_itimer = 0; | |
787 | dst->d_rtbtimer = 0; | |
788 | } | |
789 | ||
790 | #ifdef DEBUG | |
e6d29426 KO |
791 | if (((XFS_IS_UQUOTA_ENFORCED(mp) && dst->d_flags == XFS_USER_QUOTA) || |
792 | (XFS_IS_OQUOTA_ENFORCED(mp) && | |
793 | (dst->d_flags & (XFS_PROJ_QUOTA | XFS_GROUP_QUOTA)))) && | |
794 | dst->d_id != 0) { | |
1da177e4 LT |
795 | if (((int) dst->d_bcount >= (int) dst->d_blk_softlimit) && |
796 | (dst->d_blk_softlimit > 0)) { | |
797 | ASSERT(dst->d_btimer != 0); | |
798 | } | |
799 | if (((int) dst->d_icount >= (int) dst->d_ino_softlimit) && | |
800 | (dst->d_ino_softlimit > 0)) { | |
801 | ASSERT(dst->d_itimer != 0); | |
802 | } | |
803 | } | |
804 | #endif | |
805 | } | |
806 | ||
1da177e4 LT |
807 | STATIC uint |
808 | xfs_qm_export_qtype_flags( | |
809 | uint flags) | |
810 | { | |
811 | /* | |
c8ad20ff | 812 | * Can't be more than one, or none. |
1da177e4 | 813 | */ |
c8ad20ff NS |
814 | ASSERT((flags & (XFS_PROJ_QUOTA | XFS_USER_QUOTA)) != |
815 | (XFS_PROJ_QUOTA | XFS_USER_QUOTA)); | |
816 | ASSERT((flags & (XFS_PROJ_QUOTA | XFS_GROUP_QUOTA)) != | |
817 | (XFS_PROJ_QUOTA | XFS_GROUP_QUOTA)); | |
818 | ASSERT((flags & (XFS_USER_QUOTA | XFS_GROUP_QUOTA)) != | |
819 | (XFS_USER_QUOTA | XFS_GROUP_QUOTA)); | |
820 | ASSERT((flags & (XFS_PROJ_QUOTA|XFS_USER_QUOTA|XFS_GROUP_QUOTA)) != 0); | |
1da177e4 LT |
821 | |
822 | return (flags & XFS_DQ_USER) ? | |
c8ad20ff NS |
823 | XFS_USER_QUOTA : (flags & XFS_DQ_PROJ) ? |
824 | XFS_PROJ_QUOTA : XFS_GROUP_QUOTA; | |
1da177e4 LT |
825 | } |
826 | ||
1da177e4 LT |
827 | STATIC uint |
828 | xfs_qm_export_flags( | |
829 | uint flags) | |
830 | { | |
831 | uint uflags; | |
832 | ||
833 | uflags = 0; | |
834 | if (flags & XFS_UQUOTA_ACCT) | |
835 | uflags |= XFS_QUOTA_UDQ_ACCT; | |
c8ad20ff NS |
836 | if (flags & XFS_PQUOTA_ACCT) |
837 | uflags |= XFS_QUOTA_PDQ_ACCT; | |
1da177e4 LT |
838 | if (flags & XFS_GQUOTA_ACCT) |
839 | uflags |= XFS_QUOTA_GDQ_ACCT; | |
840 | if (flags & XFS_UQUOTA_ENFD) | |
841 | uflags |= XFS_QUOTA_UDQ_ENFD; | |
c8ad20ff NS |
842 | if (flags & (XFS_OQUOTA_ENFD)) { |
843 | uflags |= (flags & XFS_GQUOTA_ACCT) ? | |
844 | XFS_QUOTA_GDQ_ENFD : XFS_QUOTA_PDQ_ENFD; | |
845 | } | |
1da177e4 LT |
846 | return (uflags); |
847 | } | |
848 | ||
849 | ||
850 | /* | |
5b4d89ae | 851 | * Release all the dquots on the inodes in an AG. |
1da177e4 | 852 | */ |
5b4d89ae DC |
853 | STATIC void |
854 | xfs_qm_dqrele_inodes_ag( | |
855 | xfs_mount_t *mp, | |
856 | int ag, | |
857 | uint flags) | |
1da177e4 | 858 | { |
5b4d89ae | 859 | xfs_inode_t *ip = NULL; |
5b4d89ae DC |
860 | xfs_perag_t *pag = &mp->m_perag[ag]; |
861 | int first_index = 0; | |
862 | int nr_found; | |
1da177e4 | 863 | |
1da177e4 | 864 | do { |
5b4d89ae DC |
865 | /* |
866 | * use a gang lookup to find the next inode in the tree | |
867 | * as the tree is sparse and a gang lookup walks to find | |
868 | * the number of objects requested. | |
869 | */ | |
870 | read_lock(&pag->pag_ici_lock); | |
871 | nr_found = radix_tree_gang_lookup(&pag->pag_ici_root, | |
872 | (void**)&ip, first_index, 1); | |
873 | ||
874 | if (!nr_found) { | |
875 | read_unlock(&pag->pag_ici_lock); | |
876 | break; | |
1da177e4 | 877 | } |
5b4d89ae | 878 | |
cb4f0d1d DC |
879 | /* |
880 | * Update the index for the next lookup. Catch overflows | |
881 | * into the next AG range which can occur if we have inodes | |
882 | * in the last block of the AG and we are currently | |
883 | * pointing to the last inode. | |
884 | */ | |
5b4d89ae | 885 | first_index = XFS_INO_TO_AGINO(mp, ip->i_ino + 1); |
cb4f0d1d DC |
886 | if (first_index < XFS_INO_TO_AGINO(mp, ip->i_ino)) { |
887 | read_unlock(&pag->pag_ici_lock); | |
888 | break; | |
889 | } | |
5b4d89ae | 890 | |
cb4f0d1d DC |
891 | /* skip quota inodes */ |
892 | if (ip == XFS_QI_UQIP(mp) || ip == XFS_QI_GQIP(mp)) { | |
1da177e4 LT |
893 | ASSERT(ip->i_udquot == NULL); |
894 | ASSERT(ip->i_gdquot == NULL); | |
5b4d89ae | 895 | read_unlock(&pag->pag_ici_lock); |
1da177e4 LT |
896 | continue; |
897 | } | |
cb4f0d1d DC |
898 | |
899 | /* | |
900 | * If we can't get a reference on the inode, it must be | |
901 | * in reclaim. Leave it for the reclaim code to flush. | |
902 | */ | |
903 | if (!igrab(VFS_I(ip))) { | |
5b4d89ae | 904 | read_unlock(&pag->pag_ici_lock); |
cb4f0d1d | 905 | continue; |
1da177e4 | 906 | } |
cb4f0d1d DC |
907 | read_unlock(&pag->pag_ici_lock); |
908 | ||
6307091f DC |
909 | /* avoid new inodes though we shouldn't find any here */ |
910 | if (xfs_iflags_test(ip, XFS_INEW)) { | |
911 | IRELE(ip); | |
912 | continue; | |
913 | } | |
914 | ||
cb4f0d1d | 915 | xfs_ilock(ip, XFS_ILOCK_EXCL); |
1da177e4 LT |
916 | if ((flags & XFS_UQUOTA_ACCT) && ip->i_udquot) { |
917 | xfs_qm_dqrele(ip->i_udquot); | |
918 | ip->i_udquot = NULL; | |
919 | } | |
5b4d89ae DC |
920 | if (flags & (XFS_PQUOTA_ACCT|XFS_GQUOTA_ACCT) && |
921 | ip->i_gdquot) { | |
1da177e4 LT |
922 | xfs_qm_dqrele(ip->i_gdquot); |
923 | ip->i_gdquot = NULL; | |
924 | } | |
cb4f0d1d DC |
925 | xfs_iput(ip, XFS_ILOCK_EXCL); |
926 | ||
5b4d89ae DC |
927 | } while (nr_found); |
928 | } | |
929 | ||
930 | /* | |
931 | * Go thru all the inodes in the file system, releasing their dquots. | |
932 | * Note that the mount structure gets modified to indicate that quotas are off | |
933 | * AFTER this, in the case of quotaoff. This also gets called from | |
934 | * xfs_rootumount. | |
935 | */ | |
936 | void | |
937 | xfs_qm_dqrele_all_inodes( | |
938 | struct xfs_mount *mp, | |
939 | uint flags) | |
940 | { | |
941 | int i; | |
1da177e4 | 942 | |
5b4d89ae DC |
943 | ASSERT(mp->m_quotainfo); |
944 | for (i = 0; i < mp->m_sb.sb_agcount; i++) { | |
945 | if (!mp->m_perag[i].pag_ici_init) | |
946 | continue; | |
947 | xfs_qm_dqrele_inodes_ag(mp, i, flags); | |
948 | } | |
1da177e4 LT |
949 | } |
950 | ||
951 | /*------------------------------------------------------------------------*/ | |
952 | #ifdef DEBUG | |
953 | /* | |
954 | * This contains all the test functions for XFS disk quotas. | |
955 | * Currently it does a quota accounting check. ie. it walks through | |
956 | * all inodes in the file system, calculating the dquot accounting fields, | |
957 | * and prints out any inconsistencies. | |
958 | */ | |
959 | xfs_dqhash_t *qmtest_udqtab; | |
960 | xfs_dqhash_t *qmtest_gdqtab; | |
961 | int qmtest_hashmask; | |
962 | int qmtest_nfails; | |
a0b0b8a5 | 963 | struct mutex qcheck_lock; |
1da177e4 LT |
964 | |
965 | #define DQTEST_HASHVAL(mp, id) (((__psunsigned_t)(mp) + \ | |
966 | (__psunsigned_t)(id)) & \ | |
967 | (qmtest_hashmask - 1)) | |
968 | ||
969 | #define DQTEST_HASH(mp, id, type) ((type & XFS_DQ_USER) ? \ | |
970 | (qmtest_udqtab + \ | |
971 | DQTEST_HASHVAL(mp, id)) : \ | |
972 | (qmtest_gdqtab + \ | |
973 | DQTEST_HASHVAL(mp, id))) | |
974 | ||
975 | #define DQTEST_LIST_PRINT(l, NXT, title) \ | |
976 | { \ | |
977 | xfs_dqtest_t *dqp; int i = 0;\ | |
978 | cmn_err(CE_DEBUG, "%s (#%d)", title, (int) (l)->qh_nelems); \ | |
979 | for (dqp = (xfs_dqtest_t *)(l)->qh_next; dqp != NULL; \ | |
980 | dqp = (xfs_dqtest_t *)dqp->NXT) { \ | |
981 | cmn_err(CE_DEBUG, " %d. \"%d (%s)\" bcnt = %d, icnt = %d", \ | |
982 | ++i, dqp->d_id, DQFLAGTO_TYPESTR(dqp), \ | |
983 | dqp->d_bcount, dqp->d_icount); } \ | |
984 | } | |
985 | ||
986 | typedef struct dqtest { | |
987 | xfs_dqmarker_t q_lists; | |
988 | xfs_dqhash_t *q_hash; /* the hashchain header */ | |
989 | xfs_mount_t *q_mount; /* filesystem this relates to */ | |
990 | xfs_dqid_t d_id; /* user id or group id */ | |
991 | xfs_qcnt_t d_bcount; /* # disk blocks owned by the user */ | |
992 | xfs_qcnt_t d_icount; /* # inodes owned by the user */ | |
993 | } xfs_dqtest_t; | |
994 | ||
995 | STATIC void | |
996 | xfs_qm_hashinsert(xfs_dqhash_t *h, xfs_dqtest_t *dqp) | |
997 | { | |
998 | xfs_dquot_t *d; | |
999 | if (((d) = (h)->qh_next)) | |
1000 | (d)->HL_PREVP = &((dqp)->HL_NEXT); | |
1001 | (dqp)->HL_NEXT = d; | |
1002 | (dqp)->HL_PREVP = &((h)->qh_next); | |
1003 | (h)->qh_next = (xfs_dquot_t *)dqp; | |
1004 | (h)->qh_version++; | |
1005 | (h)->qh_nelems++; | |
1006 | } | |
1007 | STATIC void | |
1008 | xfs_qm_dqtest_print( | |
1009 | xfs_dqtest_t *d) | |
1010 | { | |
1011 | cmn_err(CE_DEBUG, "-----------DQTEST DQUOT----------------"); | |
1012 | cmn_err(CE_DEBUG, "---- dquot ID = %d", d->d_id); | |
1da177e4 LT |
1013 | cmn_err(CE_DEBUG, "---- fs = 0x%p", d->q_mount); |
1014 | cmn_err(CE_DEBUG, "---- bcount = %Lu (0x%x)", | |
1015 | d->d_bcount, (int)d->d_bcount); | |
1016 | cmn_err(CE_DEBUG, "---- icount = %Lu (0x%x)", | |
1017 | d->d_icount, (int)d->d_icount); | |
1018 | cmn_err(CE_DEBUG, "---------------------------"); | |
1019 | } | |
1020 | ||
1021 | STATIC void | |
1022 | xfs_qm_dqtest_failed( | |
1023 | xfs_dqtest_t *d, | |
1024 | xfs_dquot_t *dqp, | |
1025 | char *reason, | |
1026 | xfs_qcnt_t a, | |
1027 | xfs_qcnt_t b, | |
1028 | int error) | |
1029 | { | |
1030 | qmtest_nfails++; | |
1031 | if (error) | |
1032 | cmn_err(CE_DEBUG, "quotacheck failed id=%d, err=%d\nreason: %s", | |
1149d96a | 1033 | d->d_id, error, reason); |
1da177e4 LT |
1034 | else |
1035 | cmn_err(CE_DEBUG, "quotacheck failed id=%d (%s) [%d != %d]", | |
1149d96a | 1036 | d->d_id, reason, (int)a, (int)b); |
1da177e4 LT |
1037 | xfs_qm_dqtest_print(d); |
1038 | if (dqp) | |
1039 | xfs_qm_dqprint(dqp); | |
1040 | } | |
1041 | ||
1042 | STATIC int | |
1043 | xfs_dqtest_cmp2( | |
1044 | xfs_dqtest_t *d, | |
1045 | xfs_dquot_t *dqp) | |
1046 | { | |
1047 | int err = 0; | |
1149d96a | 1048 | if (be64_to_cpu(dqp->q_core.d_icount) != d->d_icount) { |
1da177e4 | 1049 | xfs_qm_dqtest_failed(d, dqp, "icount mismatch", |
1149d96a | 1050 | be64_to_cpu(dqp->q_core.d_icount), |
1da177e4 LT |
1051 | d->d_icount, 0); |
1052 | err++; | |
1053 | } | |
1149d96a | 1054 | if (be64_to_cpu(dqp->q_core.d_bcount) != d->d_bcount) { |
1da177e4 | 1055 | xfs_qm_dqtest_failed(d, dqp, "bcount mismatch", |
1149d96a | 1056 | be64_to_cpu(dqp->q_core.d_bcount), |
1da177e4 LT |
1057 | d->d_bcount, 0); |
1058 | err++; | |
1059 | } | |
1149d96a CH |
1060 | if (dqp->q_core.d_blk_softlimit && |
1061 | be64_to_cpu(dqp->q_core.d_bcount) >= | |
1062 | be64_to_cpu(dqp->q_core.d_blk_softlimit)) { | |
1da177e4 LT |
1063 | if (!dqp->q_core.d_btimer && dqp->q_core.d_id) { |
1064 | cmn_err(CE_DEBUG, | |
1065 | "%d [%s] [0x%p] BLK TIMER NOT STARTED", | |
1066 | d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount); | |
1067 | err++; | |
1068 | } | |
1069 | } | |
1149d96a CH |
1070 | if (dqp->q_core.d_ino_softlimit && |
1071 | be64_to_cpu(dqp->q_core.d_icount) >= | |
1072 | be64_to_cpu(dqp->q_core.d_ino_softlimit)) { | |
1da177e4 LT |
1073 | if (!dqp->q_core.d_itimer && dqp->q_core.d_id) { |
1074 | cmn_err(CE_DEBUG, | |
1075 | "%d [%s] [0x%p] INO TIMER NOT STARTED", | |
1076 | d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount); | |
1077 | err++; | |
1078 | } | |
1079 | } | |
1080 | #ifdef QUOTADEBUG | |
1081 | if (!err) { | |
1082 | cmn_err(CE_DEBUG, "%d [%s] [0x%p] qchecked", | |
c8ad20ff | 1083 | d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount); |
1da177e4 LT |
1084 | } |
1085 | #endif | |
1086 | return (err); | |
1087 | } | |
1088 | ||
1089 | STATIC void | |
1090 | xfs_dqtest_cmp( | |
1091 | xfs_dqtest_t *d) | |
1092 | { | |
1093 | xfs_dquot_t *dqp; | |
1094 | int error; | |
1095 | ||
1096 | /* xfs_qm_dqtest_print(d); */ | |
1097 | if ((error = xfs_qm_dqget(d->q_mount, NULL, d->d_id, d->dq_flags, 0, | |
1098 | &dqp))) { | |
1099 | xfs_qm_dqtest_failed(d, NULL, "dqget failed", 0, 0, error); | |
1100 | return; | |
1101 | } | |
1102 | xfs_dqtest_cmp2(d, dqp); | |
1103 | xfs_qm_dqput(dqp); | |
1104 | } | |
1105 | ||
1106 | STATIC int | |
1107 | xfs_qm_internalqcheck_dqget( | |
1108 | xfs_mount_t *mp, | |
1109 | xfs_dqid_t id, | |
1110 | uint type, | |
1111 | xfs_dqtest_t **O_dq) | |
1112 | { | |
1113 | xfs_dqtest_t *d; | |
1114 | xfs_dqhash_t *h; | |
1115 | ||
1116 | h = DQTEST_HASH(mp, id, type); | |
1117 | for (d = (xfs_dqtest_t *) h->qh_next; d != NULL; | |
1118 | d = (xfs_dqtest_t *) d->HL_NEXT) { | |
1119 | /* DQTEST_LIST_PRINT(h, HL_NEXT, "@@@@@ dqtestlist @@@@@"); */ | |
1120 | if (d->d_id == id && mp == d->q_mount) { | |
1121 | *O_dq = d; | |
1122 | return (0); | |
1123 | } | |
1124 | } | |
1125 | d = kmem_zalloc(sizeof(xfs_dqtest_t), KM_SLEEP); | |
1126 | d->dq_flags = type; | |
1127 | d->d_id = id; | |
1128 | d->q_mount = mp; | |
1129 | d->q_hash = h; | |
1130 | xfs_qm_hashinsert(h, d); | |
1131 | *O_dq = d; | |
1132 | return (0); | |
1133 | } | |
1134 | ||
1135 | STATIC void | |
1136 | xfs_qm_internalqcheck_get_dquots( | |
1137 | xfs_mount_t *mp, | |
1138 | xfs_dqid_t uid, | |
c8ad20ff | 1139 | xfs_dqid_t projid, |
1da177e4 LT |
1140 | xfs_dqid_t gid, |
1141 | xfs_dqtest_t **ud, | |
1142 | xfs_dqtest_t **gd) | |
1143 | { | |
1144 | if (XFS_IS_UQUOTA_ON(mp)) | |
1145 | xfs_qm_internalqcheck_dqget(mp, uid, XFS_DQ_USER, ud); | |
1146 | if (XFS_IS_GQUOTA_ON(mp)) | |
1147 | xfs_qm_internalqcheck_dqget(mp, gid, XFS_DQ_GROUP, gd); | |
c8ad20ff NS |
1148 | else if (XFS_IS_PQUOTA_ON(mp)) |
1149 | xfs_qm_internalqcheck_dqget(mp, projid, XFS_DQ_PROJ, gd); | |
1da177e4 LT |
1150 | } |
1151 | ||
1152 | ||
1153 | STATIC void | |
1154 | xfs_qm_internalqcheck_dqadjust( | |
1155 | xfs_inode_t *ip, | |
1156 | xfs_dqtest_t *d) | |
1157 | { | |
1158 | d->d_icount++; | |
1159 | d->d_bcount += (xfs_qcnt_t)ip->i_d.di_nblocks; | |
1160 | } | |
1161 | ||
1162 | STATIC int | |
1163 | xfs_qm_internalqcheck_adjust( | |
1164 | xfs_mount_t *mp, /* mount point for filesystem */ | |
1165 | xfs_ino_t ino, /* inode number to get data for */ | |
1166 | void __user *buffer, /* not used */ | |
1167 | int ubsize, /* not used */ | |
1168 | void *private_data, /* not used */ | |
1169 | xfs_daddr_t bno, /* starting block of inode cluster */ | |
1170 | int *ubused, /* not used */ | |
1171 | void *dip, /* not used */ | |
1172 | int *res) /* bulkstat result code */ | |
1173 | { | |
1174 | xfs_inode_t *ip; | |
1175 | xfs_dqtest_t *ud, *gd; | |
1176 | uint lock_flags; | |
1177 | boolean_t ipreleased; | |
1178 | int error; | |
1179 | ||
1180 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); | |
1181 | ||
1182 | if (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino) { | |
1183 | *res = BULKSTAT_RV_NOTHING; | |
1184 | qdprintk("internalqcheck: ino=%llu, uqino=%llu, gqino=%llu\n", | |
1185 | (unsigned long long) ino, | |
1186 | (unsigned long long) mp->m_sb.sb_uquotino, | |
1187 | (unsigned long long) mp->m_sb.sb_gquotino); | |
1188 | return XFS_ERROR(EINVAL); | |
1189 | } | |
1190 | ipreleased = B_FALSE; | |
1191 | again: | |
1192 | lock_flags = XFS_ILOCK_SHARED; | |
1193 | if ((error = xfs_iget(mp, NULL, ino, 0, lock_flags, &ip, bno))) { | |
1194 | *res = BULKSTAT_RV_NOTHING; | |
1195 | return (error); | |
1196 | } | |
1197 | ||
1da177e4 LT |
1198 | /* |
1199 | * This inode can have blocks after eof which can get released | |
1200 | * when we send it to inactive. Since we don't check the dquot | |
1201 | * until the after all our calculations are done, we must get rid | |
1202 | * of those now. | |
1203 | */ | |
1204 | if (! ipreleased) { | |
1205 | xfs_iput(ip, lock_flags); | |
1206 | ipreleased = B_TRUE; | |
1207 | goto again; | |
1208 | } | |
1209 | xfs_qm_internalqcheck_get_dquots(mp, | |
1210 | (xfs_dqid_t) ip->i_d.di_uid, | |
c8ad20ff | 1211 | (xfs_dqid_t) ip->i_d.di_projid, |
1da177e4 LT |
1212 | (xfs_dqid_t) ip->i_d.di_gid, |
1213 | &ud, &gd); | |
1214 | if (XFS_IS_UQUOTA_ON(mp)) { | |
1215 | ASSERT(ud); | |
1216 | xfs_qm_internalqcheck_dqadjust(ip, ud); | |
1217 | } | |
c8ad20ff | 1218 | if (XFS_IS_OQUOTA_ON(mp)) { |
1da177e4 LT |
1219 | ASSERT(gd); |
1220 | xfs_qm_internalqcheck_dqadjust(ip, gd); | |
1221 | } | |
1222 | xfs_iput(ip, lock_flags); | |
1223 | *res = BULKSTAT_RV_DIDONE; | |
1224 | return (0); | |
1225 | } | |
1226 | ||
1227 | ||
1228 | /* PRIVATE, debugging */ | |
1229 | int | |
1230 | xfs_qm_internalqcheck( | |
1231 | xfs_mount_t *mp) | |
1232 | { | |
1233 | xfs_ino_t lastino; | |
1234 | int done, count; | |
1235 | int i; | |
1236 | xfs_dqtest_t *d, *e; | |
1237 | xfs_dqhash_t *h1; | |
1238 | int error; | |
1239 | ||
1240 | lastino = 0; | |
1241 | qmtest_hashmask = 32; | |
1242 | count = 5; | |
1243 | done = 0; | |
1244 | qmtest_nfails = 0; | |
1245 | ||
1246 | if (! XFS_IS_QUOTA_ON(mp)) | |
1247 | return XFS_ERROR(ESRCH); | |
1248 | ||
1249 | xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE | XFS_LOG_SYNC); | |
1250 | XFS_bflush(mp->m_ddev_targp); | |
1251 | xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE | XFS_LOG_SYNC); | |
1252 | XFS_bflush(mp->m_ddev_targp); | |
1253 | ||
794ee1ba | 1254 | mutex_lock(&qcheck_lock); |
1da177e4 LT |
1255 | /* There should be absolutely no quota activity while this |
1256 | is going on. */ | |
1257 | qmtest_udqtab = kmem_zalloc(qmtest_hashmask * | |
1258 | sizeof(xfs_dqhash_t), KM_SLEEP); | |
1259 | qmtest_gdqtab = kmem_zalloc(qmtest_hashmask * | |
1260 | sizeof(xfs_dqhash_t), KM_SLEEP); | |
1261 | do { | |
1262 | /* | |
1263 | * Iterate thru all the inodes in the file system, | |
1264 | * adjusting the corresponding dquot counters | |
1265 | */ | |
1266 | if ((error = xfs_bulkstat(mp, &lastino, &count, | |
1267 | xfs_qm_internalqcheck_adjust, NULL, | |
1268 | 0, NULL, BULKSTAT_FG_IGET, &done))) { | |
1269 | break; | |
1270 | } | |
1271 | } while (! done); | |
1272 | if (error) { | |
1273 | cmn_err(CE_DEBUG, "Bulkstat returned error 0x%x", error); | |
1274 | } | |
1275 | cmn_err(CE_DEBUG, "Checking results against system dquots"); | |
1276 | for (i = 0; i < qmtest_hashmask; i++) { | |
1277 | h1 = &qmtest_udqtab[i]; | |
1278 | for (d = (xfs_dqtest_t *) h1->qh_next; d != NULL; ) { | |
1279 | xfs_dqtest_cmp(d); | |
1280 | e = (xfs_dqtest_t *) d->HL_NEXT; | |
f0e2d93c | 1281 | kmem_free(d); |
1da177e4 LT |
1282 | d = e; |
1283 | } | |
1284 | h1 = &qmtest_gdqtab[i]; | |
1285 | for (d = (xfs_dqtest_t *) h1->qh_next; d != NULL; ) { | |
1286 | xfs_dqtest_cmp(d); | |
1287 | e = (xfs_dqtest_t *) d->HL_NEXT; | |
f0e2d93c | 1288 | kmem_free(d); |
1da177e4 LT |
1289 | d = e; |
1290 | } | |
1291 | } | |
1292 | ||
1293 | if (qmtest_nfails) { | |
1294 | cmn_err(CE_DEBUG, "******** quotacheck failed ********"); | |
1295 | cmn_err(CE_DEBUG, "failures = %d", qmtest_nfails); | |
1296 | } else { | |
1297 | cmn_err(CE_DEBUG, "******** quotacheck successful! ********"); | |
1298 | } | |
f0e2d93c DV |
1299 | kmem_free(qmtest_udqtab); |
1300 | kmem_free(qmtest_gdqtab); | |
1da177e4 LT |
1301 | mutex_unlock(&qcheck_lock); |
1302 | return (qmtest_nfails); | |
1303 | } | |
1304 | ||
1305 | #endif /* DEBUG */ |