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
, 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
)
300 error2
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_gquotino
);
301 if (flags
& XFS_DQ_PROJ
)
302 error2
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_pquotino
);
304 return error
? error
: error2
;
308 * Switch on (a given) quota enforcement for a filesystem. This takes
309 * effect immediately.
310 * (Switching on quota accounting must be done at mount time.)
313 xfs_qm_scall_quotaon(
321 flags
&= (XFS_ALL_QUOTA_ACCT
| XFS_ALL_QUOTA_ENFD
);
323 * Switching on quota accounting must be done at mount time.
325 flags
&= ~(XFS_ALL_QUOTA_ACCT
);
330 xfs_debug(mp
, "%s: zero flags, m_qflags=%x\n",
331 __func__
, mp
->m_qflags
);
332 return XFS_ERROR(EINVAL
);
335 /* No fs can turn on quotas with a delayed effect */
336 ASSERT((flags
& XFS_ALL_QUOTA_ACCT
) == 0);
339 * Can't enforce without accounting. We check the superblock
340 * qflags here instead of m_qflags because rootfs can have
341 * quota acct on ondisk without m_qflags' knowing.
343 if (((flags
& XFS_UQUOTA_ACCT
) == 0 &&
344 (mp
->m_sb
.sb_qflags
& XFS_UQUOTA_ACCT
) == 0 &&
345 (flags
& XFS_UQUOTA_ENFD
)) ||
346 ((flags
& XFS_GQUOTA_ACCT
) == 0 &&
347 (mp
->m_sb
.sb_qflags
& XFS_GQUOTA_ACCT
) == 0 &&
348 (flags
& XFS_GQUOTA_ENFD
)) ||
349 ((flags
& XFS_PQUOTA_ACCT
) == 0 &&
350 (mp
->m_sb
.sb_qflags
& XFS_PQUOTA_ACCT
) == 0 &&
351 (flags
& XFS_PQUOTA_ENFD
))) {
353 "%s: Can't enforce without acct, flags=%x sbflags=%x\n",
354 __func__
, flags
, mp
->m_sb
.sb_qflags
);
355 return XFS_ERROR(EINVAL
);
358 * If everything's up to-date incore, then don't waste time.
360 if ((mp
->m_qflags
& flags
) == flags
)
361 return XFS_ERROR(EEXIST
);
364 * Change sb_qflags on disk but not incore mp->qflags
365 * if this is the root filesystem.
367 spin_lock(&mp
->m_sb_lock
);
368 qf
= mp
->m_sb
.sb_qflags
;
369 mp
->m_sb
.sb_qflags
= qf
| flags
;
370 spin_unlock(&mp
->m_sb_lock
);
373 * There's nothing to change if it's the same.
375 if ((qf
& flags
) == flags
&& sbflags
== 0)
376 return XFS_ERROR(EEXIST
);
377 sbflags
|= XFS_SB_QFLAGS
;
379 if ((error
= xfs_qm_write_sb_changes(mp
, sbflags
)))
382 * If we aren't trying to switch on quota enforcement, we are done.
384 if (((mp
->m_sb
.sb_qflags
& XFS_UQUOTA_ACCT
) !=
385 (mp
->m_qflags
& XFS_UQUOTA_ACCT
)) ||
386 ((mp
->m_sb
.sb_qflags
& XFS_PQUOTA_ACCT
) !=
387 (mp
->m_qflags
& XFS_PQUOTA_ACCT
)) ||
388 ((mp
->m_sb
.sb_qflags
& XFS_GQUOTA_ACCT
) !=
389 (mp
->m_qflags
& XFS_GQUOTA_ACCT
)) ||
390 (flags
& XFS_ALL_QUOTA_ENFD
) == 0)
393 if (! XFS_IS_QUOTA_RUNNING(mp
))
394 return XFS_ERROR(ESRCH
);
397 * Switch on quota enforcement in core.
399 mutex_lock(&mp
->m_quotainfo
->qi_quotaofflock
);
400 mp
->m_qflags
|= (flags
& XFS_ALL_QUOTA_ENFD
);
401 mutex_unlock(&mp
->m_quotainfo
->qi_quotaofflock
);
408 * Return quota status information, such as uquota-off, enforcements, etc.
411 xfs_qm_scall_getqstat(
412 struct xfs_mount
*mp
,
413 struct fs_quota_stat
*out
)
415 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
416 struct xfs_inode
*uip
= NULL
;
417 struct xfs_inode
*gip
= NULL
;
418 struct xfs_inode
*pip
= NULL
;
419 bool tempuqip
= false;
420 bool tempgqip
= false;
421 bool temppqip
= false;
423 memset(out
, 0, sizeof(fs_quota_stat_t
));
425 out
->qs_version
= FS_QSTAT_VERSION
;
426 if (!xfs_sb_version_hasquota(&mp
->m_sb
)) {
427 out
->qs_uquota
.qfs_ino
= NULLFSINO
;
428 out
->qs_gquota
.qfs_ino
= NULLFSINO
;
432 out
->qs_flags
= (__uint16_t
) xfs_qm_export_flags(mp
->m_qflags
&
434 XFS_ALL_QUOTA_ENFD
));
436 uip
= q
->qi_uquotaip
;
437 gip
= q
->qi_gquotaip
;
438 pip
= q
->qi_pquotaip
;
440 if (!uip
&& mp
->m_sb
.sb_uquotino
!= NULLFSINO
) {
441 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_uquotino
,
445 if (!gip
&& mp
->m_sb
.sb_gquotino
!= NULLFSINO
) {
446 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_gquotino
,
451 * Q_XGETQSTAT doesn't have room for both group and project quotas.
452 * So, allow the project quota values to be copied out only if
453 * there is no group quota information available.
456 if (!pip
&& mp
->m_sb
.sb_pquotino
!= NULLFSINO
) {
457 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_pquotino
,
464 out
->qs_uquota
.qfs_ino
= mp
->m_sb
.sb_uquotino
;
465 out
->qs_uquota
.qfs_nblks
= uip
->i_d
.di_nblocks
;
466 out
->qs_uquota
.qfs_nextents
= uip
->i_d
.di_nextents
;
472 out
->qs_gquota
.qfs_ino
= mp
->m_sb
.sb_gquotino
;
473 out
->qs_gquota
.qfs_nblks
= gip
->i_d
.di_nblocks
;
474 out
->qs_gquota
.qfs_nextents
= gip
->i_d
.di_nextents
;
479 out
->qs_gquota
.qfs_ino
= mp
->m_sb
.sb_gquotino
;
480 out
->qs_gquota
.qfs_nblks
= pip
->i_d
.di_nblocks
;
481 out
->qs_gquota
.qfs_nextents
= pip
->i_d
.di_nextents
;
486 out
->qs_incoredqs
= q
->qi_dquots
;
487 out
->qs_btimelimit
= q
->qi_btimelimit
;
488 out
->qs_itimelimit
= q
->qi_itimelimit
;
489 out
->qs_rtbtimelimit
= q
->qi_rtbtimelimit
;
490 out
->qs_bwarnlimit
= q
->qi_bwarnlimit
;
491 out
->qs_iwarnlimit
= q
->qi_iwarnlimit
;
496 #define XFS_DQ_MASK \
497 (FS_DQ_LIMIT_MASK | FS_DQ_TIMER_MASK | FS_DQ_WARNS_MASK)
500 * Adjust quota limits, and start/stop timers accordingly.
503 xfs_qm_scall_setqlim(
504 struct xfs_mount
*mp
,
507 fs_disk_quota_t
*newlim
)
509 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
510 struct xfs_disk_dquot
*ddq
;
511 struct xfs_dquot
*dqp
;
512 struct xfs_trans
*tp
;
514 xfs_qcnt_t hard
, soft
;
516 if (newlim
->d_fieldmask
& ~XFS_DQ_MASK
)
518 if ((newlim
->d_fieldmask
& XFS_DQ_MASK
) == 0)
522 * We don't want to race with a quotaoff so take the quotaoff lock.
523 * We don't hold an inode lock, so there's nothing else to stop
524 * a quotaoff from happening.
526 mutex_lock(&q
->qi_quotaofflock
);
529 * Get the dquot (locked) before we start, as we need to do a
530 * transaction to allocate it if it doesn't exist. Once we have the
531 * dquot, unlock it so we can start the next transaction safely. We hold
532 * a reference to the dquot, so it's safe to do this unlock/lock without
533 * it being reclaimed in the mean time.
535 error
= xfs_qm_dqget(mp
, NULL
, id
, type
, XFS_QMOPT_DQALLOC
, &dqp
);
537 ASSERT(error
!= ENOENT
);
542 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_SETQLIM
);
543 error
= xfs_trans_reserve(tp
, 0, XFS_QM_SETQLIM_LOG_RES(mp
),
544 0, 0, XFS_DEFAULT_LOG_COUNT
);
546 xfs_trans_cancel(tp
, 0);
551 xfs_trans_dqjoin(tp
, dqp
);
555 * Make sure that hardlimits are >= soft limits before changing.
557 hard
= (newlim
->d_fieldmask
& FS_DQ_BHARD
) ?
558 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_blk_hardlimit
) :
559 be64_to_cpu(ddq
->d_blk_hardlimit
);
560 soft
= (newlim
->d_fieldmask
& FS_DQ_BSOFT
) ?
561 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_blk_softlimit
) :
562 be64_to_cpu(ddq
->d_blk_softlimit
);
563 if (hard
== 0 || hard
>= soft
) {
564 ddq
->d_blk_hardlimit
= cpu_to_be64(hard
);
565 ddq
->d_blk_softlimit
= cpu_to_be64(soft
);
566 xfs_dquot_set_prealloc_limits(dqp
);
568 q
->qi_bhardlimit
= hard
;
569 q
->qi_bsoftlimit
= soft
;
572 xfs_debug(mp
, "blkhard %Ld < blksoft %Ld\n", hard
, soft
);
574 hard
= (newlim
->d_fieldmask
& FS_DQ_RTBHARD
) ?
575 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_hardlimit
) :
576 be64_to_cpu(ddq
->d_rtb_hardlimit
);
577 soft
= (newlim
->d_fieldmask
& FS_DQ_RTBSOFT
) ?
578 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_softlimit
) :
579 be64_to_cpu(ddq
->d_rtb_softlimit
);
580 if (hard
== 0 || hard
>= soft
) {
581 ddq
->d_rtb_hardlimit
= cpu_to_be64(hard
);
582 ddq
->d_rtb_softlimit
= cpu_to_be64(soft
);
584 q
->qi_rtbhardlimit
= hard
;
585 q
->qi_rtbsoftlimit
= soft
;
588 xfs_debug(mp
, "rtbhard %Ld < rtbsoft %Ld\n", hard
, soft
);
591 hard
= (newlim
->d_fieldmask
& FS_DQ_IHARD
) ?
592 (xfs_qcnt_t
) newlim
->d_ino_hardlimit
:
593 be64_to_cpu(ddq
->d_ino_hardlimit
);
594 soft
= (newlim
->d_fieldmask
& FS_DQ_ISOFT
) ?
595 (xfs_qcnt_t
) newlim
->d_ino_softlimit
:
596 be64_to_cpu(ddq
->d_ino_softlimit
);
597 if (hard
== 0 || hard
>= soft
) {
598 ddq
->d_ino_hardlimit
= cpu_to_be64(hard
);
599 ddq
->d_ino_softlimit
= cpu_to_be64(soft
);
601 q
->qi_ihardlimit
= hard
;
602 q
->qi_isoftlimit
= soft
;
605 xfs_debug(mp
, "ihard %Ld < isoft %Ld\n", hard
, soft
);
609 * Update warnings counter(s) if requested
611 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
612 ddq
->d_bwarns
= cpu_to_be16(newlim
->d_bwarns
);
613 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
614 ddq
->d_iwarns
= cpu_to_be16(newlim
->d_iwarns
);
615 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
616 ddq
->d_rtbwarns
= cpu_to_be16(newlim
->d_rtbwarns
);
620 * Timelimits for the super user set the relative time
621 * the other users can be over quota for this file system.
622 * If it is zero a default is used. Ditto for the default
623 * soft and hard limit values (already done, above), and
626 if (newlim
->d_fieldmask
& FS_DQ_BTIMER
) {
627 q
->qi_btimelimit
= newlim
->d_btimer
;
628 ddq
->d_btimer
= cpu_to_be32(newlim
->d_btimer
);
630 if (newlim
->d_fieldmask
& FS_DQ_ITIMER
) {
631 q
->qi_itimelimit
= newlim
->d_itimer
;
632 ddq
->d_itimer
= cpu_to_be32(newlim
->d_itimer
);
634 if (newlim
->d_fieldmask
& FS_DQ_RTBTIMER
) {
635 q
->qi_rtbtimelimit
= newlim
->d_rtbtimer
;
636 ddq
->d_rtbtimer
= cpu_to_be32(newlim
->d_rtbtimer
);
638 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
639 q
->qi_bwarnlimit
= newlim
->d_bwarns
;
640 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
641 q
->qi_iwarnlimit
= newlim
->d_iwarns
;
642 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
643 q
->qi_rtbwarnlimit
= newlim
->d_rtbwarns
;
646 * If the user is now over quota, start the timelimit.
647 * The user will not be 'warned'.
648 * Note that we keep the timers ticking, whether enforcement
649 * is on or off. We don't really want to bother with iterating
650 * over all ondisk dquots and turning the timers on/off.
652 xfs_qm_adjust_dqtimers(mp
, ddq
);
654 dqp
->dq_flags
|= XFS_DQ_DIRTY
;
655 xfs_trans_log_dquot(tp
, dqp
);
657 error
= xfs_trans_commit(tp
, 0);
662 mutex_unlock(&q
->qi_quotaofflock
);
667 xfs_qm_log_quotaoff_end(
669 xfs_qoff_logitem_t
*startqoff
,
674 xfs_qoff_logitem_t
*qoffi
;
676 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF_END
);
678 error
= xfs_trans_reserve(tp
, 0, XFS_QM_QUOTAOFF_END_LOG_RES(mp
),
679 0, 0, XFS_DEFAULT_LOG_COUNT
);
681 xfs_trans_cancel(tp
, 0);
685 qoffi
= xfs_trans_get_qoff_item(tp
, startqoff
,
686 flags
& XFS_ALL_QUOTA_ACCT
);
687 xfs_trans_log_quotaoff_item(tp
, qoffi
);
690 * We have to make sure that the transaction is secure on disk before we
691 * return and actually stop quota accounting. So, make it synchronous.
692 * We don't care about quotoff's performance.
694 xfs_trans_set_sync(tp
);
695 error
= xfs_trans_commit(tp
, 0);
703 xfs_qoff_logitem_t
**qoffstartp
,
708 xfs_qoff_logitem_t
*qoffi
=NULL
;
711 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF
);
712 error
= xfs_trans_reserve(tp
, 0, XFS_QM_QUOTAOFF_LOG_RES(mp
),
713 0, 0, XFS_DEFAULT_LOG_COUNT
);
717 qoffi
= xfs_trans_get_qoff_item(tp
, NULL
, flags
& XFS_ALL_QUOTA_ACCT
);
718 xfs_trans_log_quotaoff_item(tp
, qoffi
);
720 spin_lock(&mp
->m_sb_lock
);
721 oldsbqflag
= mp
->m_sb
.sb_qflags
;
722 mp
->m_sb
.sb_qflags
= (mp
->m_qflags
& ~(flags
)) & XFS_MOUNT_QUOTA_ALL
;
723 spin_unlock(&mp
->m_sb_lock
);
725 xfs_mod_sb(tp
, XFS_SB_QFLAGS
);
728 * We have to make sure that the transaction is secure on disk before we
729 * return and actually stop quota accounting. So, make it synchronous.
730 * We don't care about quotoff's performance.
732 xfs_trans_set_sync(tp
);
733 error
= xfs_trans_commit(tp
, 0);
737 xfs_trans_cancel(tp
, 0);
739 * No one else is modifying sb_qflags, so this is OK.
740 * We still hold the quotaofflock.
742 spin_lock(&mp
->m_sb_lock
);
743 mp
->m_sb
.sb_qflags
= oldsbqflag
;
744 spin_unlock(&mp
->m_sb_lock
);
752 xfs_qm_scall_getquota(
753 struct xfs_mount
*mp
,
756 struct fs_disk_quota
*dst
)
758 struct xfs_dquot
*dqp
;
762 * Try to get the dquot. We don't want it allocated on disk, so
763 * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't
764 * exist, we'll get ENOENT back.
766 error
= xfs_qm_dqget(mp
, NULL
, id
, type
, 0, &dqp
);
771 * If everything's NULL, this dquot doesn't quite exist as far as
772 * our utility programs are concerned.
774 if (XFS_IS_DQUOT_UNINITIALIZED(dqp
)) {
775 error
= XFS_ERROR(ENOENT
);
779 memset(dst
, 0, sizeof(*dst
));
780 dst
->d_version
= FS_DQUOT_VERSION
;
781 dst
->d_flags
= xfs_qm_export_qtype_flags(dqp
->q_core
.d_flags
);
782 dst
->d_id
= be32_to_cpu(dqp
->q_core
.d_id
);
783 dst
->d_blk_hardlimit
=
784 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_blk_hardlimit
));
785 dst
->d_blk_softlimit
=
786 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_blk_softlimit
));
787 dst
->d_ino_hardlimit
= be64_to_cpu(dqp
->q_core
.d_ino_hardlimit
);
788 dst
->d_ino_softlimit
= be64_to_cpu(dqp
->q_core
.d_ino_softlimit
);
789 dst
->d_bcount
= XFS_FSB_TO_BB(mp
, dqp
->q_res_bcount
);
790 dst
->d_icount
= dqp
->q_res_icount
;
791 dst
->d_btimer
= be32_to_cpu(dqp
->q_core
.d_btimer
);
792 dst
->d_itimer
= be32_to_cpu(dqp
->q_core
.d_itimer
);
793 dst
->d_iwarns
= be16_to_cpu(dqp
->q_core
.d_iwarns
);
794 dst
->d_bwarns
= be16_to_cpu(dqp
->q_core
.d_bwarns
);
795 dst
->d_rtb_hardlimit
=
796 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_rtb_hardlimit
));
797 dst
->d_rtb_softlimit
=
798 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_rtb_softlimit
));
799 dst
->d_rtbcount
= XFS_FSB_TO_BB(mp
, dqp
->q_res_rtbcount
);
800 dst
->d_rtbtimer
= be32_to_cpu(dqp
->q_core
.d_rtbtimer
);
801 dst
->d_rtbwarns
= be16_to_cpu(dqp
->q_core
.d_rtbwarns
);
804 * Internally, we don't reset all the timers when quota enforcement
805 * gets turned off. No need to confuse the user level code,
806 * so return zeroes in that case.
808 if ((!XFS_IS_UQUOTA_ENFORCED(mp
) &&
809 dqp
->q_core
.d_flags
== XFS_DQ_USER
) ||
810 (!XFS_IS_GQUOTA_ENFORCED(mp
) &&
811 dqp
->q_core
.d_flags
== XFS_DQ_GROUP
) ||
812 (!XFS_IS_PQUOTA_ENFORCED(mp
) &&
813 dqp
->q_core
.d_flags
== XFS_DQ_PROJ
)) {
820 if (((XFS_IS_UQUOTA_ENFORCED(mp
) && dst
->d_flags
== FS_USER_QUOTA
) ||
821 (XFS_IS_GQUOTA_ENFORCED(mp
) && dst
->d_flags
== FS_GROUP_QUOTA
) ||
822 (XFS_IS_PQUOTA_ENFORCED(mp
) && dst
->d_flags
== FS_PROJ_QUOTA
)) &&
824 if ((dst
->d_bcount
> dst
->d_blk_softlimit
) &&
825 (dst
->d_blk_softlimit
> 0)) {
826 ASSERT(dst
->d_btimer
!= 0);
828 if ((dst
->d_icount
> dst
->d_ino_softlimit
) &&
829 (dst
->d_ino_softlimit
> 0)) {
830 ASSERT(dst
->d_itimer
!= 0);
840 xfs_qm_export_qtype_flags(
844 * Can't be more than one, or none.
846 ASSERT((flags
& (FS_PROJ_QUOTA
| FS_USER_QUOTA
)) !=
847 (FS_PROJ_QUOTA
| FS_USER_QUOTA
));
848 ASSERT((flags
& (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
)) !=
849 (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
));
850 ASSERT((flags
& (FS_USER_QUOTA
| FS_GROUP_QUOTA
)) !=
851 (FS_USER_QUOTA
| FS_GROUP_QUOTA
));
852 ASSERT((flags
& (FS_PROJ_QUOTA
|FS_USER_QUOTA
|FS_GROUP_QUOTA
)) != 0);
854 return (flags
& XFS_DQ_USER
) ?
855 FS_USER_QUOTA
: (flags
& XFS_DQ_PROJ
) ?
856 FS_PROJ_QUOTA
: FS_GROUP_QUOTA
;
866 if (flags
& XFS_UQUOTA_ACCT
)
867 uflags
|= FS_QUOTA_UDQ_ACCT
;
868 if (flags
& XFS_GQUOTA_ACCT
)
869 uflags
|= FS_QUOTA_GDQ_ACCT
;
870 if (flags
& XFS_PQUOTA_ACCT
)
871 uflags
|= FS_QUOTA_PDQ_ACCT
;
872 if (flags
& XFS_UQUOTA_ENFD
)
873 uflags
|= FS_QUOTA_UDQ_ENFD
;
874 if (flags
& XFS_GQUOTA_ENFD
)
875 uflags
|= FS_QUOTA_GDQ_ENFD
;
876 if (flags
& XFS_PQUOTA_ENFD
)
877 uflags
|= FS_QUOTA_PDQ_ENFD
;
884 struct xfs_inode
*ip
,
885 struct xfs_perag
*pag
,
889 /* skip quota inodes */
890 if (ip
== ip
->i_mount
->m_quotainfo
->qi_uquotaip
||
891 ip
== ip
->i_mount
->m_quotainfo
->qi_gquotaip
||
892 ip
== ip
->i_mount
->m_quotainfo
->qi_pquotaip
) {
893 ASSERT(ip
->i_udquot
== NULL
);
894 ASSERT(ip
->i_gdquot
== NULL
);
895 ASSERT(ip
->i_pdquot
== NULL
);
899 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
900 if ((flags
& XFS_UQUOTA_ACCT
) && ip
->i_udquot
) {
901 xfs_qm_dqrele(ip
->i_udquot
);
904 if ((flags
& XFS_GQUOTA_ACCT
) && ip
->i_gdquot
) {
905 xfs_qm_dqrele(ip
->i_gdquot
);
908 if ((flags
& XFS_PQUOTA_ACCT
) && ip
->i_pdquot
) {
909 xfs_qm_dqrele(ip
->i_pdquot
);
912 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
918 * Go thru all the inodes in the file system, releasing their dquots.
920 * Note that the mount structure gets modified to indicate that quotas are off
921 * AFTER this, in the case of quotaoff.
924 xfs_qm_dqrele_all_inodes(
925 struct xfs_mount
*mp
,
928 ASSERT(mp
->m_quotainfo
);
929 xfs_inode_ag_iterator(mp
, xfs_dqrele_inode
, flags
, NULL
);