2 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
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
7 * published by the Free Software Foundation.
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.
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
19 #include <linux/capability.h>
23 #include "xfs_format.h"
26 #include "xfs_trans.h"
29 #include "xfs_alloc.h"
30 #include "xfs_quota.h"
31 #include "xfs_mount.h"
32 #include "xfs_bmap_btree.h"
33 #include "xfs_inode.h"
34 #include "xfs_inode_item.h"
35 #include "xfs_itable.h"
37 #include "xfs_rtalloc.h"
38 #include "xfs_error.h"
40 #include "xfs_buf_item.h"
42 #include "xfs_trace.h"
43 #include "xfs_icache.h"
45 STATIC int xfs_qm_log_quotaoff(xfs_mount_t *, xfs_qoff_logitem_t **, uint);
46 STATIC int xfs_qm_log_quotaoff_end(xfs_mount_t *, xfs_qoff_logitem_t *,
48 STATIC uint xfs_qm_export_flags(uint);
49 STATIC uint xfs_qm_export_qtype_flags(uint);
52 * Turn off quota accounting and/or enforcement for all udquots and/or
53 * gdquots. Called only at unmount time.
55 * This assumes that there are no dquots of this file system cached
56 * incore, and modifies the ondisk dquot directly. Therefore, for example,
57 * it is an error to call this twice, without purging the cache.
60 xfs_qm_scall_quotaoff(
64 struct xfs_quotainfo *q = mp->m_quotainfo;
67 uint inactivate_flags;
68 xfs_qoff_logitem_t *qoffstart;
71 * No file system can have quotas enabled on disk but not in core.
72 * Note that quota utilities (like quotaoff) _expect_
73 * errno == EEXIST here.
75 if ((mp->m_qflags & flags) == 0)
76 return XFS_ERROR(EEXIST);
79 flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
82 * We don't want to deal with two quotaoffs messing up each other,
83 * so we're going to serialize it. quotaoff isn't exactly a performance
85 * If quotaoff, then we must be dealing with the root filesystem.
88 mutex_lock(&q->qi_quotaofflock);
91 * If we're just turning off quota enforcement, change mp and go.
93 if ((flags & XFS_ALL_QUOTA_ACCT) == 0) {
94 mp->m_qflags &= ~(flags);
96 spin_lock(&mp->m_sb_lock);
97 mp->m_sb.sb_qflags = mp->m_qflags;
98 spin_unlock(&mp->m_sb_lock);
99 mutex_unlock(&q->qi_quotaofflock);
101 /* XXX what to do if error ? Revert back to old vals incore ? */
102 error = xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS);
107 inactivate_flags = 0;
109 * If accounting is off, we must turn enforcement off, clear the
110 * quota 'CHKD' certificate to make it known that we have to
111 * do a quotacheck the next time this quota is turned on.
113 if (flags & XFS_UQUOTA_ACCT) {
114 dqtype |= XFS_QMOPT_UQUOTA;
115 flags |= (XFS_UQUOTA_CHKD | XFS_UQUOTA_ENFD);
116 inactivate_flags |= XFS_UQUOTA_ACTIVE;
118 if (flags & XFS_GQUOTA_ACCT) {
119 dqtype |= XFS_QMOPT_GQUOTA;
120 flags |= (XFS_GQUOTA_CHKD | XFS_GQUOTA_ENFD);
121 inactivate_flags |= XFS_GQUOTA_ACTIVE;
123 if (flags & XFS_PQUOTA_ACCT) {
124 dqtype |= XFS_QMOPT_PQUOTA;
125 flags |= (XFS_PQUOTA_CHKD | XFS_PQUOTA_ENFD);
126 inactivate_flags |= XFS_PQUOTA_ACTIVE;
130 * Nothing to do? Don't complain. This happens when we're just
131 * turning off quota enforcement.
133 if ((mp->m_qflags & flags) == 0)
137 * Write the LI_QUOTAOFF log record, and do SB changes atomically,
138 * and synchronously. If we fail to write, we should abort the
139 * operation as it cannot be recovered safely if we crash.
141 error = xfs_qm_log_quotaoff(mp, &qoffstart, flags);
146 * Next we clear the XFS_MOUNT_*DQ_ACTIVE bit(s) in the mount struct
147 * to take care of the race between dqget and quotaoff. We don't take
148 * any special locks to reset these bits. All processes need to check
149 * these bits *after* taking inode lock(s) to see if the particular
150 * quota type is in the process of being turned off. If *ACTIVE, it is
151 * guaranteed that all dquot structures and all quotainode ptrs will all
152 * stay valid as long as that inode is kept locked.
154 * There is no turning back after this.
156 mp->m_qflags &= ~inactivate_flags;
159 * Give back all the dquot reference(s) held by inodes.
160 * Here we go thru every single incore inode in this file system, and
161 * do a dqrele on the i_udquot/i_gdquot that it may have.
162 * Essentially, as long as somebody has an inode locked, this guarantees
163 * that quotas will not be turned off. This is handy because in a
164 * transaction once we lock the inode(s) and check for quotaon, we can
165 * depend on the quota inodes (and other things) being valid as long as
166 * we keep the lock(s).
168 xfs_qm_dqrele_all_inodes(mp, flags);
171 * Next we make the changes in the quota flag in the mount struct.
172 * This isn't protected by a particular lock directly, because we
173 * don't want to take a mrlock every time we depend on quotas being on.
175 mp->m_qflags &= ~flags;
178 * Go through all the dquots of this file system and purge them,
179 * according to what was turned off.
181 xfs_qm_dqpurge_all(mp, dqtype);
184 * Transactions that had started before ACTIVE state bit was cleared
185 * could have logged many dquots, so they'd have higher LSNs than
186 * the first QUOTAOFF log record does. If we happen to crash when
187 * the tail of the log has gone past the QUOTAOFF record, but
188 * before the last dquot modification, those dquots __will__
189 * recover, and that's not good.
191 * So, we have QUOTAOFF start and end logitems; the start
192 * logitem won't get overwritten until the end logitem appears...
194 error = xfs_qm_log_quotaoff_end(mp, qoffstart, flags);
196 /* We're screwed now. Shutdown is the only option. */
197 xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
202 * If all quotas are completely turned off, close shop.
204 if (mp->m_qflags == 0) {
205 mutex_unlock(&q->qi_quotaofflock);
206 xfs_qm_destroy_quotainfo(mp);
211 * Release our quotainode references if we don't need them anymore.
213 if ((dqtype & XFS_QMOPT_UQUOTA) && q->qi_uquotaip) {
214 IRELE(q->qi_uquotaip);
215 q->qi_uquotaip = NULL;
217 if ((dqtype & XFS_QMOPT_GQUOTA) && q->qi_gquotaip) {
218 IRELE(q->qi_gquotaip);
219 q->qi_gquotaip = NULL;
221 if ((dqtype & XFS_QMOPT_PQUOTA) && q->qi_pquotaip) {
222 IRELE(q->qi_pquotaip);
223 q->qi_pquotaip = NULL;
227 mutex_unlock(&q->qi_quotaofflock);
232 xfs_qm_scall_trunc_qfile(
233 struct xfs_mount *mp,
236 struct xfs_inode *ip;
237 struct xfs_trans *tp;
240 if (ino == NULLFSINO)
243 error = xfs_iget(mp, NULL, ino, 0, 0, &ip);
247 xfs_ilock(ip, XFS_IOLOCK_EXCL);
249 tp = xfs_trans_alloc(mp, XFS_TRANS_TRUNCATE_FILE);
250 error = xfs_trans_reserve(tp, &M_RES(mp)->tr_itruncate, 0, 0);
252 xfs_trans_cancel(tp, 0);
253 xfs_iunlock(ip, XFS_IOLOCK_EXCL);
257 xfs_ilock(ip, XFS_ILOCK_EXCL);
258 xfs_trans_ijoin(tp, ip, 0);
261 xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
263 error = xfs_itruncate_extents(&tp, ip, XFS_DATA_FORK, 0);
265 xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES |
270 ASSERT(ip->i_d.di_nextents == 0);
272 xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
273 error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
276 xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
283 xfs_qm_scall_trunc_qfiles(
287 int error = 0, error2 = 0;
289 if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0) {
290 xfs_debug(mp, "%s: flags=%x m_qflags=%x\n",
291 __func__, flags, mp->m_qflags);
292 return XFS_ERROR(EINVAL);
295 if (flags & XFS_DQ_USER)
296 error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_uquotino);
297 if (flags & XFS_DQ_GROUP)
298 error2 = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_gquotino);
299 if (flags & XFS_DQ_PROJ)
300 error2 = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_pquotino);
302 return error ? error : error2;
306 * Switch on (a given) quota enforcement for a filesystem. This takes
307 * effect immediately.
308 * (Switching on quota accounting must be done at mount time.)
311 xfs_qm_scall_quotaon(
319 flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
321 * Switching on quota accounting must be done at mount time.
323 flags &= ~(XFS_ALL_QUOTA_ACCT);
328 xfs_debug(mp, "%s: zero flags, m_qflags=%x\n",
329 __func__, mp->m_qflags);
330 return XFS_ERROR(EINVAL);
333 /* No fs can turn on quotas with a delayed effect */
334 ASSERT((flags & XFS_ALL_QUOTA_ACCT) == 0);
337 * Can't enforce without accounting. We check the superblock
338 * qflags here instead of m_qflags because rootfs can have
339 * quota acct on ondisk without m_qflags' knowing.
341 if (((flags & XFS_UQUOTA_ACCT) == 0 &&
342 (mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) == 0 &&
343 (flags & XFS_UQUOTA_ENFD)) ||
344 ((flags & XFS_GQUOTA_ACCT) == 0 &&
345 (mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 &&
346 (flags & XFS_GQUOTA_ENFD)) ||
347 ((flags & XFS_PQUOTA_ACCT) == 0 &&
348 (mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 &&
349 (flags & XFS_PQUOTA_ENFD))) {
351 "%s: Can't enforce without acct, flags=%x sbflags=%x\n",
352 __func__, flags, mp->m_sb.sb_qflags);
353 return XFS_ERROR(EINVAL);
356 * If everything's up to-date incore, then don't waste time.
358 if ((mp->m_qflags & flags) == flags)
359 return XFS_ERROR(EEXIST);
362 * Change sb_qflags on disk but not incore mp->qflags
363 * if this is the root filesystem.
365 spin_lock(&mp->m_sb_lock);
366 qf = mp->m_sb.sb_qflags;
367 mp->m_sb.sb_qflags = qf | flags;
368 spin_unlock(&mp->m_sb_lock);
371 * There's nothing to change if it's the same.
373 if ((qf & flags) == flags && sbflags == 0)
374 return XFS_ERROR(EEXIST);
375 sbflags |= XFS_SB_QFLAGS;
377 if ((error = xfs_qm_write_sb_changes(mp, sbflags)))
380 * If we aren't trying to switch on quota enforcement, we are done.
382 if (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) !=
383 (mp->m_qflags & XFS_UQUOTA_ACCT)) ||
384 ((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) !=
385 (mp->m_qflags & XFS_PQUOTA_ACCT)) ||
386 ((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) !=
387 (mp->m_qflags & XFS_GQUOTA_ACCT)) ||
388 (flags & XFS_ALL_QUOTA_ENFD) == 0)
391 if (! XFS_IS_QUOTA_RUNNING(mp))
392 return XFS_ERROR(ESRCH);
395 * Switch on quota enforcement in core.
397 mutex_lock(&mp->m_quotainfo->qi_quotaofflock);
398 mp->m_qflags |= (flags & XFS_ALL_QUOTA_ENFD);
399 mutex_unlock(&mp->m_quotainfo->qi_quotaofflock);
406 * Return quota status information, such as uquota-off, enforcements, etc.
409 xfs_qm_scall_getqstat(
410 struct xfs_mount *mp,
411 struct fs_quota_stat *out)
413 struct xfs_quotainfo *q = mp->m_quotainfo;
414 struct xfs_inode *uip = NULL;
415 struct xfs_inode *gip = NULL;
416 struct xfs_inode *pip = NULL;
417 bool tempuqip = false;
418 bool tempgqip = false;
419 bool temppqip = false;
421 memset(out, 0, sizeof(fs_quota_stat_t));
423 out->qs_version = FS_QSTAT_VERSION;
424 if (!xfs_sb_version_hasquota(&mp->m_sb)) {
425 out->qs_uquota.qfs_ino = NULLFSINO;
426 out->qs_gquota.qfs_ino = NULLFSINO;
430 out->qs_flags = (__uint16_t) xfs_qm_export_flags(mp->m_qflags &
432 XFS_ALL_QUOTA_ENFD));
434 uip = q->qi_uquotaip;
435 gip = q->qi_gquotaip;
436 pip = q->qi_pquotaip;
438 if (!uip && mp->m_sb.sb_uquotino != NULLFSINO) {
439 if (xfs_iget(mp, NULL, mp->m_sb.sb_uquotino,
443 if (!gip && mp->m_sb.sb_gquotino != NULLFSINO) {
444 if (xfs_iget(mp, NULL, mp->m_sb.sb_gquotino,
449 * Q_XGETQSTAT doesn't have room for both group and project quotas.
450 * So, allow the project quota values to be copied out only if
451 * there is no group quota information available.
454 if (!pip && mp->m_sb.sb_pquotino != NULLFSINO) {
455 if (xfs_iget(mp, NULL, mp->m_sb.sb_pquotino,
462 out->qs_uquota.qfs_ino = mp->m_sb.sb_uquotino;
463 out->qs_uquota.qfs_nblks = uip->i_d.di_nblocks;
464 out->qs_uquota.qfs_nextents = uip->i_d.di_nextents;
470 out->qs_gquota.qfs_ino = mp->m_sb.sb_gquotino;
471 out->qs_gquota.qfs_nblks = gip->i_d.di_nblocks;
472 out->qs_gquota.qfs_nextents = gip->i_d.di_nextents;
477 out->qs_gquota.qfs_ino = mp->m_sb.sb_gquotino;
478 out->qs_gquota.qfs_nblks = pip->i_d.di_nblocks;
479 out->qs_gquota.qfs_nextents = pip->i_d.di_nextents;
484 out->qs_incoredqs = q->qi_dquots;
485 out->qs_btimelimit = q->qi_btimelimit;
486 out->qs_itimelimit = q->qi_itimelimit;
487 out->qs_rtbtimelimit = q->qi_rtbtimelimit;
488 out->qs_bwarnlimit = q->qi_bwarnlimit;
489 out->qs_iwarnlimit = q->qi_iwarnlimit;
494 #define XFS_DQ_MASK \
495 (FS_DQ_LIMIT_MASK | FS_DQ_TIMER_MASK | FS_DQ_WARNS_MASK)
498 * Adjust quota limits, and start/stop timers accordingly.
501 xfs_qm_scall_setqlim(
502 struct xfs_mount *mp,
505 fs_disk_quota_t *newlim)
507 struct xfs_quotainfo *q = mp->m_quotainfo;
508 struct xfs_disk_dquot *ddq;
509 struct xfs_dquot *dqp;
510 struct xfs_trans *tp;
512 xfs_qcnt_t hard, soft;
514 if (newlim->d_fieldmask & ~XFS_DQ_MASK)
516 if ((newlim->d_fieldmask & XFS_DQ_MASK) == 0)
520 * We don't want to race with a quotaoff so take the quotaoff lock.
521 * We don't hold an inode lock, so there's nothing else to stop
522 * a quotaoff from happening.
524 mutex_lock(&q->qi_quotaofflock);
527 * Get the dquot (locked) before we start, as we need to do a
528 * transaction to allocate it if it doesn't exist. Once we have the
529 * dquot, unlock it so we can start the next transaction safely. We hold
530 * a reference to the dquot, so it's safe to do this unlock/lock without
531 * it being reclaimed in the mean time.
533 error = xfs_qm_dqget(mp, NULL, id, type, XFS_QMOPT_DQALLOC, &dqp);
535 ASSERT(error != ENOENT);
540 tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SETQLIM);
541 error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_setqlim, 0, 0);
543 xfs_trans_cancel(tp, 0);
548 xfs_trans_dqjoin(tp, dqp);
552 * Make sure that hardlimits are >= soft limits before changing.
554 hard = (newlim->d_fieldmask & FS_DQ_BHARD) ?
555 (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_hardlimit) :
556 be64_to_cpu(ddq->d_blk_hardlimit);
557 soft = (newlim->d_fieldmask & FS_DQ_BSOFT) ?
558 (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_softlimit) :
559 be64_to_cpu(ddq->d_blk_softlimit);
560 if (hard == 0 || hard >= soft) {
561 ddq->d_blk_hardlimit = cpu_to_be64(hard);
562 ddq->d_blk_softlimit = cpu_to_be64(soft);
563 xfs_dquot_set_prealloc_limits(dqp);
565 q->qi_bhardlimit = hard;
566 q->qi_bsoftlimit = soft;
569 xfs_debug(mp, "blkhard %Ld < blksoft %Ld\n", hard, soft);
571 hard = (newlim->d_fieldmask & FS_DQ_RTBHARD) ?
572 (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_hardlimit) :
573 be64_to_cpu(ddq->d_rtb_hardlimit);
574 soft = (newlim->d_fieldmask & FS_DQ_RTBSOFT) ?
575 (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_softlimit) :
576 be64_to_cpu(ddq->d_rtb_softlimit);
577 if (hard == 0 || hard >= soft) {
578 ddq->d_rtb_hardlimit = cpu_to_be64(hard);
579 ddq->d_rtb_softlimit = cpu_to_be64(soft);
581 q->qi_rtbhardlimit = hard;
582 q->qi_rtbsoftlimit = soft;
585 xfs_debug(mp, "rtbhard %Ld < rtbsoft %Ld\n", hard, soft);
588 hard = (newlim->d_fieldmask & FS_DQ_IHARD) ?
589 (xfs_qcnt_t) newlim->d_ino_hardlimit :
590 be64_to_cpu(ddq->d_ino_hardlimit);
591 soft = (newlim->d_fieldmask & FS_DQ_ISOFT) ?
592 (xfs_qcnt_t) newlim->d_ino_softlimit :
593 be64_to_cpu(ddq->d_ino_softlimit);
594 if (hard == 0 || hard >= soft) {
595 ddq->d_ino_hardlimit = cpu_to_be64(hard);
596 ddq->d_ino_softlimit = cpu_to_be64(soft);
598 q->qi_ihardlimit = hard;
599 q->qi_isoftlimit = soft;
602 xfs_debug(mp, "ihard %Ld < isoft %Ld\n", hard, soft);
606 * Update warnings counter(s) if requested
608 if (newlim->d_fieldmask & FS_DQ_BWARNS)
609 ddq->d_bwarns = cpu_to_be16(newlim->d_bwarns);
610 if (newlim->d_fieldmask & FS_DQ_IWARNS)
611 ddq->d_iwarns = cpu_to_be16(newlim->d_iwarns);
612 if (newlim->d_fieldmask & FS_DQ_RTBWARNS)
613 ddq->d_rtbwarns = cpu_to_be16(newlim->d_rtbwarns);
617 * Timelimits for the super user set the relative time
618 * the other users can be over quota for this file system.
619 * If it is zero a default is used. Ditto for the default
620 * soft and hard limit values (already done, above), and
623 if (newlim->d_fieldmask & FS_DQ_BTIMER) {
624 q->qi_btimelimit = newlim->d_btimer;
625 ddq->d_btimer = cpu_to_be32(newlim->d_btimer);
627 if (newlim->d_fieldmask & FS_DQ_ITIMER) {
628 q->qi_itimelimit = newlim->d_itimer;
629 ddq->d_itimer = cpu_to_be32(newlim->d_itimer);
631 if (newlim->d_fieldmask & FS_DQ_RTBTIMER) {
632 q->qi_rtbtimelimit = newlim->d_rtbtimer;
633 ddq->d_rtbtimer = cpu_to_be32(newlim->d_rtbtimer);
635 if (newlim->d_fieldmask & FS_DQ_BWARNS)
636 q->qi_bwarnlimit = newlim->d_bwarns;
637 if (newlim->d_fieldmask & FS_DQ_IWARNS)
638 q->qi_iwarnlimit = newlim->d_iwarns;
639 if (newlim->d_fieldmask & FS_DQ_RTBWARNS)
640 q->qi_rtbwarnlimit = newlim->d_rtbwarns;
643 * If the user is now over quota, start the timelimit.
644 * The user will not be 'warned'.
645 * Note that we keep the timers ticking, whether enforcement
646 * is on or off. We don't really want to bother with iterating
647 * over all ondisk dquots and turning the timers on/off.
649 xfs_qm_adjust_dqtimers(mp, ddq);
651 dqp->dq_flags |= XFS_DQ_DIRTY;
652 xfs_trans_log_dquot(tp, dqp);
654 error = xfs_trans_commit(tp, 0);
659 mutex_unlock(&q->qi_quotaofflock);
664 xfs_qm_log_quotaoff_end(
666 xfs_qoff_logitem_t *startqoff,
671 xfs_qoff_logitem_t *qoffi;
673 tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF_END);
675 error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_equotaoff, 0, 0);
677 xfs_trans_cancel(tp, 0);
681 qoffi = xfs_trans_get_qoff_item(tp, startqoff,
682 flags & XFS_ALL_QUOTA_ACCT);
683 xfs_trans_log_quotaoff_item(tp, qoffi);
686 * We have to make sure that the transaction is secure on disk before we
687 * return and actually stop quota accounting. So, make it synchronous.
688 * We don't care about quotoff's performance.
690 xfs_trans_set_sync(tp);
691 error = xfs_trans_commit(tp, 0);
699 xfs_qoff_logitem_t **qoffstartp,
704 xfs_qoff_logitem_t *qoffi=NULL;
707 tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF);
708 error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_quotaoff, 0, 0);
712 qoffi = xfs_trans_get_qoff_item(tp, NULL, flags & XFS_ALL_QUOTA_ACCT);
713 xfs_trans_log_quotaoff_item(tp, qoffi);
715 spin_lock(&mp->m_sb_lock);
716 oldsbqflag = mp->m_sb.sb_qflags;
717 mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL;
718 spin_unlock(&mp->m_sb_lock);
720 xfs_mod_sb(tp, XFS_SB_QFLAGS);
723 * We have to make sure that the transaction is secure on disk before we
724 * return and actually stop quota accounting. So, make it synchronous.
725 * We don't care about quotoff's performance.
727 xfs_trans_set_sync(tp);
728 error = xfs_trans_commit(tp, 0);
732 xfs_trans_cancel(tp, 0);
734 * No one else is modifying sb_qflags, so this is OK.
735 * We still hold the quotaofflock.
737 spin_lock(&mp->m_sb_lock);
738 mp->m_sb.sb_qflags = oldsbqflag;
739 spin_unlock(&mp->m_sb_lock);
747 xfs_qm_scall_getquota(
748 struct xfs_mount *mp,
751 struct fs_disk_quota *dst)
753 struct xfs_dquot *dqp;
757 * Try to get the dquot. We don't want it allocated on disk, so
758 * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't
759 * exist, we'll get ENOENT back.
761 error = xfs_qm_dqget(mp, NULL, id, type, 0, &dqp);
766 * If everything's NULL, this dquot doesn't quite exist as far as
767 * our utility programs are concerned.
769 if (XFS_IS_DQUOT_UNINITIALIZED(dqp)) {
770 error = XFS_ERROR(ENOENT);
774 memset(dst, 0, sizeof(*dst));
775 dst->d_version = FS_DQUOT_VERSION;
776 dst->d_flags = xfs_qm_export_qtype_flags(dqp->q_core.d_flags);
777 dst->d_id = be32_to_cpu(dqp->q_core.d_id);
778 dst->d_blk_hardlimit =
779 XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_blk_hardlimit));
780 dst->d_blk_softlimit =
781 XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_blk_softlimit));
782 dst->d_ino_hardlimit = be64_to_cpu(dqp->q_core.d_ino_hardlimit);
783 dst->d_ino_softlimit = be64_to_cpu(dqp->q_core.d_ino_softlimit);
784 dst->d_bcount = XFS_FSB_TO_BB(mp, dqp->q_res_bcount);
785 dst->d_icount = dqp->q_res_icount;
786 dst->d_btimer = be32_to_cpu(dqp->q_core.d_btimer);
787 dst->d_itimer = be32_to_cpu(dqp->q_core.d_itimer);
788 dst->d_iwarns = be16_to_cpu(dqp->q_core.d_iwarns);
789 dst->d_bwarns = be16_to_cpu(dqp->q_core.d_bwarns);
790 dst->d_rtb_hardlimit =
791 XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_rtb_hardlimit));
792 dst->d_rtb_softlimit =
793 XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_rtb_softlimit));
794 dst->d_rtbcount = XFS_FSB_TO_BB(mp, dqp->q_res_rtbcount);
795 dst->d_rtbtimer = be32_to_cpu(dqp->q_core.d_rtbtimer);
796 dst->d_rtbwarns = be16_to_cpu(dqp->q_core.d_rtbwarns);
799 * Internally, we don't reset all the timers when quota enforcement
800 * gets turned off. No need to confuse the user level code,
801 * so return zeroes in that case.
803 if ((!XFS_IS_UQUOTA_ENFORCED(mp) &&
804 dqp->q_core.d_flags == XFS_DQ_USER) ||
805 (!XFS_IS_GQUOTA_ENFORCED(mp) &&
806 dqp->q_core.d_flags == XFS_DQ_GROUP) ||
807 (!XFS_IS_PQUOTA_ENFORCED(mp) &&
808 dqp->q_core.d_flags == XFS_DQ_PROJ)) {
815 if (((XFS_IS_UQUOTA_ENFORCED(mp) && dst->d_flags == FS_USER_QUOTA) ||
816 (XFS_IS_GQUOTA_ENFORCED(mp) && dst->d_flags == FS_GROUP_QUOTA) ||
817 (XFS_IS_PQUOTA_ENFORCED(mp) && dst->d_flags == FS_PROJ_QUOTA)) &&
819 if ((dst->d_bcount > dst->d_blk_softlimit) &&
820 (dst->d_blk_softlimit > 0)) {
821 ASSERT(dst->d_btimer != 0);
823 if ((dst->d_icount > dst->d_ino_softlimit) &&
824 (dst->d_ino_softlimit > 0)) {
825 ASSERT(dst->d_itimer != 0);
835 xfs_qm_export_qtype_flags(
839 * Can't be more than one, or none.
841 ASSERT((flags & (FS_PROJ_QUOTA | FS_USER_QUOTA)) !=
842 (FS_PROJ_QUOTA | FS_USER_QUOTA));
843 ASSERT((flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)) !=
844 (FS_PROJ_QUOTA | FS_GROUP_QUOTA));
845 ASSERT((flags & (FS_USER_QUOTA | FS_GROUP_QUOTA)) !=
846 (FS_USER_QUOTA | FS_GROUP_QUOTA));
847 ASSERT((flags & (FS_PROJ_QUOTA|FS_USER_QUOTA|FS_GROUP_QUOTA)) != 0);
849 return (flags & XFS_DQ_USER) ?
850 FS_USER_QUOTA : (flags & XFS_DQ_PROJ) ?
851 FS_PROJ_QUOTA : FS_GROUP_QUOTA;
861 if (flags & XFS_UQUOTA_ACCT)
862 uflags |= FS_QUOTA_UDQ_ACCT;
863 if (flags & XFS_GQUOTA_ACCT)
864 uflags |= FS_QUOTA_GDQ_ACCT;
865 if (flags & XFS_PQUOTA_ACCT)
866 uflags |= FS_QUOTA_PDQ_ACCT;
867 if (flags & XFS_UQUOTA_ENFD)
868 uflags |= FS_QUOTA_UDQ_ENFD;
869 if (flags & XFS_GQUOTA_ENFD)
870 uflags |= FS_QUOTA_GDQ_ENFD;
871 if (flags & XFS_PQUOTA_ENFD)
872 uflags |= FS_QUOTA_PDQ_ENFD;
879 struct xfs_inode *ip,
880 struct xfs_perag *pag,
884 /* skip quota inodes */
885 if (ip == ip->i_mount->m_quotainfo->qi_uquotaip ||
886 ip == ip->i_mount->m_quotainfo->qi_gquotaip ||
887 ip == ip->i_mount->m_quotainfo->qi_pquotaip) {
888 ASSERT(ip->i_udquot == NULL);
889 ASSERT(ip->i_gdquot == NULL);
890 ASSERT(ip->i_pdquot == NULL);
894 xfs_ilock(ip, XFS_ILOCK_EXCL);
895 if ((flags & XFS_UQUOTA_ACCT) && ip->i_udquot) {
896 xfs_qm_dqrele(ip->i_udquot);
899 if ((flags & XFS_GQUOTA_ACCT) && ip->i_gdquot) {
900 xfs_qm_dqrele(ip->i_gdquot);
903 if ((flags & XFS_PQUOTA_ACCT) && ip->i_pdquot) {
904 xfs_qm_dqrele(ip->i_pdquot);
907 xfs_iunlock(ip, XFS_ILOCK_EXCL);
913 * Go thru all the inodes in the file system, releasing their dquots.
915 * Note that the mount structure gets modified to indicate that quotas are off
916 * AFTER this, in the case of quotaoff.
919 xfs_qm_dqrele_all_inodes(
920 struct xfs_mount *mp,
923 ASSERT(mp->m_quotainfo);
924 xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags, NULL);