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>
25 #include "xfs_trans.h"
28 #include "xfs_alloc.h"
29 #include "xfs_quota.h"
30 #include "xfs_mount.h"
31 #include "xfs_bmap_btree.h"
32 #include "xfs_inode.h"
33 #include "xfs_inode_item.h"
34 #include "xfs_itable.h"
36 #include "xfs_rtalloc.h"
37 #include "xfs_error.h"
39 #include "xfs_buf_item.h"
40 #include "xfs_utils.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
, 0, XFS_ITRUNCATE_LOG_RES(mp
), 0,
251 XFS_TRANS_PERM_LOG_RES
,
252 XFS_ITRUNCATE_LOG_COUNT
);
254 xfs_trans_cancel(tp
, 0);
255 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
259 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
260 xfs_trans_ijoin(tp
, ip
, 0);
263 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
265 error
= xfs_itruncate_extents(&tp
, ip
, XFS_DATA_FORK
, 0);
267 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
|
272 ASSERT(ip
->i_d
.di_nextents
== 0);
274 xfs_trans_ichgtime(tp
, ip
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
275 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
);
278 xfs_iunlock(ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
285 xfs_qm_scall_trunc_qfiles(
289 int error
= 0, error2
= 0;
291 if (!xfs_sb_version_hasquota(&mp
->m_sb
) || flags
== 0) {
292 xfs_debug(mp
, "%s: flags=%x m_qflags=%x\n",
293 __func__
, flags
, mp
->m_qflags
);
294 return XFS_ERROR(EINVAL
);
297 if (flags
& XFS_DQ_USER
)
298 error
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_uquotino
);
299 if (flags
& (XFS_DQ_GROUP
|XFS_DQ_PROJ
))
300 error2
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_gquotino
);
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 bool tempuqip
= false;
417 bool tempgqip
= false;
419 memset(out
, 0, sizeof(fs_quota_stat_t
));
421 out
->qs_version
= FS_QSTAT_VERSION
;
422 if (!xfs_sb_version_hasquota(&mp
->m_sb
)) {
423 out
->qs_uquota
.qfs_ino
= NULLFSINO
;
424 out
->qs_gquota
.qfs_ino
= NULLFSINO
;
427 out
->qs_flags
= (__uint16_t
) xfs_qm_export_flags(mp
->m_qflags
&
429 XFS_ALL_QUOTA_ENFD
));
431 out
->qs_uquota
.qfs_ino
= mp
->m_sb
.sb_uquotino
;
432 out
->qs_gquota
.qfs_ino
= mp
->m_sb
.sb_gquotino
;
435 uip
= q
->qi_uquotaip
;
436 gip
= q
->qi_gquotaip
;
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 out
->qs_uquota
.qfs_nblks
= uip
->i_d
.di_nblocks
;
450 out
->qs_uquota
.qfs_nextents
= uip
->i_d
.di_nextents
;
455 out
->qs_gquota
.qfs_nblks
= gip
->i_d
.di_nblocks
;
456 out
->qs_gquota
.qfs_nextents
= gip
->i_d
.di_nextents
;
461 out
->qs_incoredqs
= q
->qi_dquots
;
462 out
->qs_btimelimit
= q
->qi_btimelimit
;
463 out
->qs_itimelimit
= q
->qi_itimelimit
;
464 out
->qs_rtbtimelimit
= q
->qi_rtbtimelimit
;
465 out
->qs_bwarnlimit
= q
->qi_bwarnlimit
;
466 out
->qs_iwarnlimit
= q
->qi_iwarnlimit
;
471 #define XFS_DQ_MASK \
472 (FS_DQ_LIMIT_MASK | FS_DQ_TIMER_MASK | FS_DQ_WARNS_MASK)
475 * Adjust quota limits, and start/stop timers accordingly.
478 xfs_qm_scall_setqlim(
479 struct xfs_mount
*mp
,
482 fs_disk_quota_t
*newlim
)
484 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
485 struct xfs_disk_dquot
*ddq
;
486 struct xfs_dquot
*dqp
;
487 struct xfs_trans
*tp
;
489 xfs_qcnt_t hard
, soft
;
491 if (newlim
->d_fieldmask
& ~XFS_DQ_MASK
)
493 if ((newlim
->d_fieldmask
& XFS_DQ_MASK
) == 0)
497 * We don't want to race with a quotaoff so take the quotaoff lock.
498 * We don't hold an inode lock, so there's nothing else to stop
499 * a quotaoff from happening.
501 mutex_lock(&q
->qi_quotaofflock
);
504 * Get the dquot (locked) before we start, as we need to do a
505 * transaction to allocate it if it doesn't exist. Once we have the
506 * dquot, unlock it so we can start the next transaction safely. We hold
507 * a reference to the dquot, so it's safe to do this unlock/lock without
508 * it being reclaimed in the mean time.
510 error
= xfs_qm_dqget(mp
, NULL
, id
, type
, XFS_QMOPT_DQALLOC
, &dqp
);
512 ASSERT(error
!= ENOENT
);
517 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_SETQLIM
);
518 error
= xfs_trans_reserve(tp
, 0, XFS_QM_SETQLIM_LOG_RES(mp
),
519 0, 0, XFS_DEFAULT_LOG_COUNT
);
521 xfs_trans_cancel(tp
, 0);
526 xfs_trans_dqjoin(tp
, dqp
);
530 * Make sure that hardlimits are >= soft limits before changing.
532 hard
= (newlim
->d_fieldmask
& FS_DQ_BHARD
) ?
533 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_blk_hardlimit
) :
534 be64_to_cpu(ddq
->d_blk_hardlimit
);
535 soft
= (newlim
->d_fieldmask
& FS_DQ_BSOFT
) ?
536 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_blk_softlimit
) :
537 be64_to_cpu(ddq
->d_blk_softlimit
);
538 if (hard
== 0 || hard
>= soft
) {
539 ddq
->d_blk_hardlimit
= cpu_to_be64(hard
);
540 ddq
->d_blk_softlimit
= cpu_to_be64(soft
);
541 xfs_dquot_set_prealloc_limits(dqp
);
543 q
->qi_bhardlimit
= hard
;
544 q
->qi_bsoftlimit
= soft
;
547 xfs_debug(mp
, "blkhard %Ld < blksoft %Ld\n", hard
, soft
);
549 hard
= (newlim
->d_fieldmask
& FS_DQ_RTBHARD
) ?
550 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_hardlimit
) :
551 be64_to_cpu(ddq
->d_rtb_hardlimit
);
552 soft
= (newlim
->d_fieldmask
& FS_DQ_RTBSOFT
) ?
553 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_softlimit
) :
554 be64_to_cpu(ddq
->d_rtb_softlimit
);
555 if (hard
== 0 || hard
>= soft
) {
556 ddq
->d_rtb_hardlimit
= cpu_to_be64(hard
);
557 ddq
->d_rtb_softlimit
= cpu_to_be64(soft
);
559 q
->qi_rtbhardlimit
= hard
;
560 q
->qi_rtbsoftlimit
= soft
;
563 xfs_debug(mp
, "rtbhard %Ld < rtbsoft %Ld\n", hard
, soft
);
566 hard
= (newlim
->d_fieldmask
& FS_DQ_IHARD
) ?
567 (xfs_qcnt_t
) newlim
->d_ino_hardlimit
:
568 be64_to_cpu(ddq
->d_ino_hardlimit
);
569 soft
= (newlim
->d_fieldmask
& FS_DQ_ISOFT
) ?
570 (xfs_qcnt_t
) newlim
->d_ino_softlimit
:
571 be64_to_cpu(ddq
->d_ino_softlimit
);
572 if (hard
== 0 || hard
>= soft
) {
573 ddq
->d_ino_hardlimit
= cpu_to_be64(hard
);
574 ddq
->d_ino_softlimit
= cpu_to_be64(soft
);
576 q
->qi_ihardlimit
= hard
;
577 q
->qi_isoftlimit
= soft
;
580 xfs_debug(mp
, "ihard %Ld < isoft %Ld\n", hard
, soft
);
584 * Update warnings counter(s) if requested
586 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
587 ddq
->d_bwarns
= cpu_to_be16(newlim
->d_bwarns
);
588 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
589 ddq
->d_iwarns
= cpu_to_be16(newlim
->d_iwarns
);
590 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
591 ddq
->d_rtbwarns
= cpu_to_be16(newlim
->d_rtbwarns
);
595 * Timelimits for the super user set the relative time
596 * the other users can be over quota for this file system.
597 * If it is zero a default is used. Ditto for the default
598 * soft and hard limit values (already done, above), and
601 if (newlim
->d_fieldmask
& FS_DQ_BTIMER
) {
602 q
->qi_btimelimit
= newlim
->d_btimer
;
603 ddq
->d_btimer
= cpu_to_be32(newlim
->d_btimer
);
605 if (newlim
->d_fieldmask
& FS_DQ_ITIMER
) {
606 q
->qi_itimelimit
= newlim
->d_itimer
;
607 ddq
->d_itimer
= cpu_to_be32(newlim
->d_itimer
);
609 if (newlim
->d_fieldmask
& FS_DQ_RTBTIMER
) {
610 q
->qi_rtbtimelimit
= newlim
->d_rtbtimer
;
611 ddq
->d_rtbtimer
= cpu_to_be32(newlim
->d_rtbtimer
);
613 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
614 q
->qi_bwarnlimit
= newlim
->d_bwarns
;
615 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
616 q
->qi_iwarnlimit
= newlim
->d_iwarns
;
617 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
618 q
->qi_rtbwarnlimit
= newlim
->d_rtbwarns
;
621 * If the user is now over quota, start the timelimit.
622 * The user will not be 'warned'.
623 * Note that we keep the timers ticking, whether enforcement
624 * is on or off. We don't really want to bother with iterating
625 * over all ondisk dquots and turning the timers on/off.
627 xfs_qm_adjust_dqtimers(mp
, ddq
);
629 dqp
->dq_flags
|= XFS_DQ_DIRTY
;
630 xfs_trans_log_dquot(tp
, dqp
);
632 error
= xfs_trans_commit(tp
, 0);
637 mutex_unlock(&q
->qi_quotaofflock
);
642 xfs_qm_log_quotaoff_end(
644 xfs_qoff_logitem_t
*startqoff
,
649 xfs_qoff_logitem_t
*qoffi
;
651 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF_END
);
653 error
= xfs_trans_reserve(tp
, 0, XFS_QM_QUOTAOFF_END_LOG_RES(mp
),
654 0, 0, XFS_DEFAULT_LOG_COUNT
);
656 xfs_trans_cancel(tp
, 0);
660 qoffi
= xfs_trans_get_qoff_item(tp
, startqoff
,
661 flags
& XFS_ALL_QUOTA_ACCT
);
662 xfs_trans_log_quotaoff_item(tp
, qoffi
);
665 * We have to make sure that the transaction is secure on disk before we
666 * return and actually stop quota accounting. So, make it synchronous.
667 * We don't care about quotoff's performance.
669 xfs_trans_set_sync(tp
);
670 error
= xfs_trans_commit(tp
, 0);
678 xfs_qoff_logitem_t
**qoffstartp
,
683 xfs_qoff_logitem_t
*qoffi
=NULL
;
686 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF
);
687 error
= xfs_trans_reserve(tp
, 0, XFS_QM_QUOTAOFF_LOG_RES(mp
),
688 0, 0, XFS_DEFAULT_LOG_COUNT
);
692 qoffi
= xfs_trans_get_qoff_item(tp
, NULL
, flags
& XFS_ALL_QUOTA_ACCT
);
693 xfs_trans_log_quotaoff_item(tp
, qoffi
);
695 spin_lock(&mp
->m_sb_lock
);
696 oldsbqflag
= mp
->m_sb
.sb_qflags
;
697 mp
->m_sb
.sb_qflags
= (mp
->m_qflags
& ~(flags
)) & XFS_MOUNT_QUOTA_ALL
;
698 spin_unlock(&mp
->m_sb_lock
);
700 xfs_mod_sb(tp
, XFS_SB_QFLAGS
);
703 * We have to make sure that the transaction is secure on disk before we
704 * return and actually stop quota accounting. So, make it synchronous.
705 * We don't care about quotoff's performance.
707 xfs_trans_set_sync(tp
);
708 error
= xfs_trans_commit(tp
, 0);
712 xfs_trans_cancel(tp
, 0);
714 * No one else is modifying sb_qflags, so this is OK.
715 * We still hold the quotaofflock.
717 spin_lock(&mp
->m_sb_lock
);
718 mp
->m_sb
.sb_qflags
= oldsbqflag
;
719 spin_unlock(&mp
->m_sb_lock
);
727 xfs_qm_scall_getquota(
728 struct xfs_mount
*mp
,
731 struct fs_disk_quota
*dst
)
733 struct xfs_dquot
*dqp
;
737 * Try to get the dquot. We don't want it allocated on disk, so
738 * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't
739 * exist, we'll get ENOENT back.
741 error
= xfs_qm_dqget(mp
, NULL
, id
, type
, 0, &dqp
);
746 * If everything's NULL, this dquot doesn't quite exist as far as
747 * our utility programs are concerned.
749 if (XFS_IS_DQUOT_UNINITIALIZED(dqp
)) {
750 error
= XFS_ERROR(ENOENT
);
754 memset(dst
, 0, sizeof(*dst
));
755 dst
->d_version
= FS_DQUOT_VERSION
;
756 dst
->d_flags
= xfs_qm_export_qtype_flags(dqp
->q_core
.d_flags
);
757 dst
->d_id
= be32_to_cpu(dqp
->q_core
.d_id
);
758 dst
->d_blk_hardlimit
=
759 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_blk_hardlimit
));
760 dst
->d_blk_softlimit
=
761 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_blk_softlimit
));
762 dst
->d_ino_hardlimit
= be64_to_cpu(dqp
->q_core
.d_ino_hardlimit
);
763 dst
->d_ino_softlimit
= be64_to_cpu(dqp
->q_core
.d_ino_softlimit
);
764 dst
->d_bcount
= XFS_FSB_TO_BB(mp
, dqp
->q_res_bcount
);
765 dst
->d_icount
= dqp
->q_res_icount
;
766 dst
->d_btimer
= be32_to_cpu(dqp
->q_core
.d_btimer
);
767 dst
->d_itimer
= be32_to_cpu(dqp
->q_core
.d_itimer
);
768 dst
->d_iwarns
= be16_to_cpu(dqp
->q_core
.d_iwarns
);
769 dst
->d_bwarns
= be16_to_cpu(dqp
->q_core
.d_bwarns
);
770 dst
->d_rtb_hardlimit
=
771 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_rtb_hardlimit
));
772 dst
->d_rtb_softlimit
=
773 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_rtb_softlimit
));
774 dst
->d_rtbcount
= XFS_FSB_TO_BB(mp
, dqp
->q_res_rtbcount
);
775 dst
->d_rtbtimer
= be32_to_cpu(dqp
->q_core
.d_rtbtimer
);
776 dst
->d_rtbwarns
= be16_to_cpu(dqp
->q_core
.d_rtbwarns
);
779 * Internally, we don't reset all the timers when quota enforcement
780 * gets turned off. No need to confuse the user level code,
781 * so return zeroes in that case.
783 if ((!XFS_IS_UQUOTA_ENFORCED(mp
) &&
784 dqp
->q_core
.d_flags
== XFS_DQ_USER
) ||
785 (!XFS_IS_GQUOTA_ENFORCED(mp
) &&
786 dqp
->q_core
.d_flags
== XFS_DQ_GROUP
) ||
787 (!XFS_IS_PQUOTA_ENFORCED(mp
) &&
788 dqp
->q_core
.d_flags
== XFS_DQ_PROJ
)) {
795 if (((XFS_IS_UQUOTA_ENFORCED(mp
) && dst
->d_flags
== FS_USER_QUOTA
) ||
796 (XFS_IS_GQUOTA_ENFORCED(mp
) && dst
->d_flags
== FS_GROUP_QUOTA
) ||
797 (XFS_IS_PQUOTA_ENFORCED(mp
) && dst
->d_flags
== FS_PROJ_QUOTA
)) &&
799 if ((dst
->d_bcount
> dst
->d_blk_softlimit
) &&
800 (dst
->d_blk_softlimit
> 0)) {
801 ASSERT(dst
->d_btimer
!= 0);
803 if ((dst
->d_icount
> dst
->d_ino_softlimit
) &&
804 (dst
->d_ino_softlimit
> 0)) {
805 ASSERT(dst
->d_itimer
!= 0);
815 xfs_qm_export_qtype_flags(
819 * Can't be more than one, or none.
821 ASSERT((flags
& (FS_PROJ_QUOTA
| FS_USER_QUOTA
)) !=
822 (FS_PROJ_QUOTA
| FS_USER_QUOTA
));
823 ASSERT((flags
& (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
)) !=
824 (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
));
825 ASSERT((flags
& (FS_USER_QUOTA
| FS_GROUP_QUOTA
)) !=
826 (FS_USER_QUOTA
| FS_GROUP_QUOTA
));
827 ASSERT((flags
& (FS_PROJ_QUOTA
|FS_USER_QUOTA
|FS_GROUP_QUOTA
)) != 0);
829 return (flags
& XFS_DQ_USER
) ?
830 FS_USER_QUOTA
: (flags
& XFS_DQ_PROJ
) ?
831 FS_PROJ_QUOTA
: FS_GROUP_QUOTA
;
841 if (flags
& XFS_UQUOTA_ACCT
)
842 uflags
|= FS_QUOTA_UDQ_ACCT
;
843 if (flags
& XFS_GQUOTA_ACCT
)
844 uflags
|= FS_QUOTA_GDQ_ACCT
;
845 if (flags
& XFS_PQUOTA_ACCT
)
846 uflags
|= FS_QUOTA_PDQ_ACCT
;
847 if (flags
& XFS_UQUOTA_ENFD
)
848 uflags
|= FS_QUOTA_UDQ_ENFD
;
849 if (flags
& XFS_GQUOTA_ENFD
)
850 uflags
|= FS_QUOTA_GDQ_ENFD
;
851 if (flags
& XFS_PQUOTA_ENFD
)
852 uflags
|= FS_QUOTA_PDQ_ENFD
;
859 struct xfs_inode
*ip
,
860 struct xfs_perag
*pag
,
864 /* skip quota inodes */
865 if (ip
== ip
->i_mount
->m_quotainfo
->qi_uquotaip
||
866 ip
== ip
->i_mount
->m_quotainfo
->qi_gquotaip
||
867 ip
== ip
->i_mount
->m_quotainfo
->qi_pquotaip
) {
868 ASSERT(ip
->i_udquot
== NULL
);
869 ASSERT(ip
->i_gdquot
== NULL
);
870 ASSERT(ip
->i_pdquot
== NULL
);
874 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
875 if ((flags
& XFS_UQUOTA_ACCT
) && ip
->i_udquot
) {
876 xfs_qm_dqrele(ip
->i_udquot
);
879 if ((flags
& XFS_GQUOTA_ACCT
) && ip
->i_gdquot
) {
880 xfs_qm_dqrele(ip
->i_gdquot
);
883 if ((flags
& XFS_PQUOTA_ACCT
) && ip
->i_pdquot
) {
884 xfs_qm_dqrele(ip
->i_pdquot
);
887 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
893 * Go thru all the inodes in the file system, releasing their dquots.
895 * Note that the mount structure gets modified to indicate that quotas are off
896 * AFTER this, in the case of quotaoff.
899 xfs_qm_dqrele_all_inodes(
900 struct xfs_mount
*mp
,
903 ASSERT(mp
->m_quotainfo
);
904 xfs_inode_ag_iterator(mp
, xfs_dqrele_inode
, flags
, NULL
);