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_shared.h"
24 #include "xfs_format.h"
25 #include "xfs_log_format.h"
26 #include "xfs_trans_resv.h"
29 #include "xfs_mount.h"
30 #include "xfs_inode.h"
31 #include "xfs_trans.h"
32 #include "xfs_error.h"
33 #include "xfs_quota.h"
35 #include "xfs_trace.h"
36 #include "xfs_icache.h"
38 STATIC
int xfs_qm_log_quotaoff(xfs_mount_t
*, xfs_qoff_logitem_t
**, uint
);
39 STATIC
int xfs_qm_log_quotaoff_end(xfs_mount_t
*, xfs_qoff_logitem_t
*,
41 STATIC uint
xfs_qm_export_flags(uint
);
44 * Turn off quota accounting and/or enforcement for all udquots and/or
45 * gdquots. Called only at unmount time.
47 * This assumes that there are no dquots of this file system cached
48 * incore, and modifies the ondisk dquot directly. Therefore, for example,
49 * it is an error to call this twice, without purging the cache.
52 xfs_qm_scall_quotaoff(
56 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
59 uint inactivate_flags
;
60 xfs_qoff_logitem_t
*qoffstart
;
63 * No file system can have quotas enabled on disk but not in core.
64 * Note that quota utilities (like quotaoff) _expect_
65 * errno == -EEXIST here.
67 if ((mp
->m_qflags
& flags
) == 0)
71 flags
&= (XFS_ALL_QUOTA_ACCT
| XFS_ALL_QUOTA_ENFD
);
74 * We don't want to deal with two quotaoffs messing up each other,
75 * so we're going to serialize it. quotaoff isn't exactly a performance
77 * If quotaoff, then we must be dealing with the root filesystem.
80 mutex_lock(&q
->qi_quotaofflock
);
83 * If we're just turning off quota enforcement, change mp and go.
85 if ((flags
& XFS_ALL_QUOTA_ACCT
) == 0) {
86 mp
->m_qflags
&= ~(flags
);
88 spin_lock(&mp
->m_sb_lock
);
89 mp
->m_sb
.sb_qflags
= mp
->m_qflags
;
90 spin_unlock(&mp
->m_sb_lock
);
91 mutex_unlock(&q
->qi_quotaofflock
);
93 /* XXX what to do if error ? Revert back to old vals incore ? */
94 return xfs_sync_sb(mp
, false);
100 * If accounting is off, we must turn enforcement off, clear the
101 * quota 'CHKD' certificate to make it known that we have to
102 * do a quotacheck the next time this quota is turned on.
104 if (flags
& XFS_UQUOTA_ACCT
) {
105 dqtype
|= XFS_QMOPT_UQUOTA
;
106 flags
|= (XFS_UQUOTA_CHKD
| XFS_UQUOTA_ENFD
);
107 inactivate_flags
|= XFS_UQUOTA_ACTIVE
;
109 if (flags
& XFS_GQUOTA_ACCT
) {
110 dqtype
|= XFS_QMOPT_GQUOTA
;
111 flags
|= (XFS_GQUOTA_CHKD
| XFS_GQUOTA_ENFD
);
112 inactivate_flags
|= XFS_GQUOTA_ACTIVE
;
114 if (flags
& XFS_PQUOTA_ACCT
) {
115 dqtype
|= XFS_QMOPT_PQUOTA
;
116 flags
|= (XFS_PQUOTA_CHKD
| XFS_PQUOTA_ENFD
);
117 inactivate_flags
|= XFS_PQUOTA_ACTIVE
;
121 * Nothing to do? Don't complain. This happens when we're just
122 * turning off quota enforcement.
124 if ((mp
->m_qflags
& flags
) == 0)
128 * Write the LI_QUOTAOFF log record, and do SB changes atomically,
129 * and synchronously. If we fail to write, we should abort the
130 * operation as it cannot be recovered safely if we crash.
132 error
= xfs_qm_log_quotaoff(mp
, &qoffstart
, flags
);
137 * Next we clear the XFS_MOUNT_*DQ_ACTIVE bit(s) in the mount struct
138 * to take care of the race between dqget and quotaoff. We don't take
139 * any special locks to reset these bits. All processes need to check
140 * these bits *after* taking inode lock(s) to see if the particular
141 * quota type is in the process of being turned off. If *ACTIVE, it is
142 * guaranteed that all dquot structures and all quotainode ptrs will all
143 * stay valid as long as that inode is kept locked.
145 * There is no turning back after this.
147 mp
->m_qflags
&= ~inactivate_flags
;
150 * Give back all the dquot reference(s) held by inodes.
151 * Here we go thru every single incore inode in this file system, and
152 * do a dqrele on the i_udquot/i_gdquot that it may have.
153 * Essentially, as long as somebody has an inode locked, this guarantees
154 * that quotas will not be turned off. This is handy because in a
155 * transaction once we lock the inode(s) and check for quotaon, we can
156 * depend on the quota inodes (and other things) being valid as long as
157 * we keep the lock(s).
159 xfs_qm_dqrele_all_inodes(mp
, flags
);
162 * Next we make the changes in the quota flag in the mount struct.
163 * This isn't protected by a particular lock directly, because we
164 * don't want to take a mrlock every time we depend on quotas being on.
166 mp
->m_qflags
&= ~flags
;
169 * Go through all the dquots of this file system and purge them,
170 * according to what was turned off.
172 xfs_qm_dqpurge_all(mp
, dqtype
);
175 * Transactions that had started before ACTIVE state bit was cleared
176 * could have logged many dquots, so they'd have higher LSNs than
177 * the first QUOTAOFF log record does. If we happen to crash when
178 * the tail of the log has gone past the QUOTAOFF record, but
179 * before the last dquot modification, those dquots __will__
180 * recover, and that's not good.
182 * So, we have QUOTAOFF start and end logitems; the start
183 * logitem won't get overwritten until the end logitem appears...
185 error
= xfs_qm_log_quotaoff_end(mp
, qoffstart
, flags
);
187 /* We're screwed now. Shutdown is the only option. */
188 xfs_force_shutdown(mp
, SHUTDOWN_CORRUPT_INCORE
);
193 * If all quotas are completely turned off, close shop.
195 if (mp
->m_qflags
== 0) {
196 mutex_unlock(&q
->qi_quotaofflock
);
197 xfs_qm_destroy_quotainfo(mp
);
202 * Release our quotainode references if we don't need them anymore.
204 if ((dqtype
& XFS_QMOPT_UQUOTA
) && q
->qi_uquotaip
) {
205 IRELE(q
->qi_uquotaip
);
206 q
->qi_uquotaip
= NULL
;
208 if ((dqtype
& XFS_QMOPT_GQUOTA
) && q
->qi_gquotaip
) {
209 IRELE(q
->qi_gquotaip
);
210 q
->qi_gquotaip
= NULL
;
212 if ((dqtype
& XFS_QMOPT_PQUOTA
) && q
->qi_pquotaip
) {
213 IRELE(q
->qi_pquotaip
);
214 q
->qi_pquotaip
= NULL
;
218 mutex_unlock(&q
->qi_quotaofflock
);
223 xfs_qm_scall_trunc_qfile(
224 struct xfs_mount
*mp
,
227 struct xfs_inode
*ip
;
228 struct xfs_trans
*tp
;
231 if (ino
== NULLFSINO
)
234 error
= xfs_iget(mp
, NULL
, ino
, 0, 0, &ip
);
238 xfs_ilock(ip
, XFS_IOLOCK_EXCL
);
240 tp
= xfs_trans_alloc(mp
, XFS_TRANS_TRUNCATE_FILE
);
241 error
= xfs_trans_reserve(tp
, &M_RES(mp
)->tr_itruncate
, 0, 0);
243 xfs_trans_cancel(tp
, 0);
244 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
248 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
249 xfs_trans_ijoin(tp
, ip
, 0);
252 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
254 error
= xfs_itruncate_extents(&tp
, ip
, XFS_DATA_FORK
, 0);
256 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
|
261 ASSERT(ip
->i_d
.di_nextents
== 0);
263 xfs_trans_ichgtime(tp
, ip
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
264 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
);
267 xfs_iunlock(ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
274 xfs_qm_scall_trunc_qfiles(
280 if (!xfs_sb_version_hasquota(&mp
->m_sb
) || flags
== 0 ||
281 (flags
& ~XFS_DQ_ALLTYPES
)) {
282 xfs_debug(mp
, "%s: flags=%x m_qflags=%x",
283 __func__
, flags
, mp
->m_qflags
);
287 if (flags
& XFS_DQ_USER
) {
288 error
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_uquotino
);
292 if (flags
& XFS_DQ_GROUP
) {
293 error
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_gquotino
);
297 if (flags
& XFS_DQ_PROJ
)
298 error
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_pquotino
);
304 * Switch on (a given) quota enforcement for a filesystem. This takes
305 * effect immediately.
306 * (Switching on quota accounting must be done at mount time.)
309 xfs_qm_scall_quotaon(
316 flags
&= (XFS_ALL_QUOTA_ACCT
| XFS_ALL_QUOTA_ENFD
);
318 * Switching on quota accounting must be done at mount time.
320 flags
&= ~(XFS_ALL_QUOTA_ACCT
);
323 xfs_debug(mp
, "%s: zero flags, m_qflags=%x",
324 __func__
, mp
->m_qflags
);
329 * Can't enforce without accounting. We check the superblock
330 * qflags here instead of m_qflags because rootfs can have
331 * quota acct on ondisk without m_qflags' knowing.
333 if (((mp
->m_sb
.sb_qflags
& XFS_UQUOTA_ACCT
) == 0 &&
334 (flags
& XFS_UQUOTA_ENFD
)) ||
335 ((mp
->m_sb
.sb_qflags
& XFS_GQUOTA_ACCT
) == 0 &&
336 (flags
& XFS_GQUOTA_ENFD
)) ||
337 ((mp
->m_sb
.sb_qflags
& XFS_PQUOTA_ACCT
) == 0 &&
338 (flags
& XFS_PQUOTA_ENFD
))) {
340 "%s: Can't enforce without acct, flags=%x sbflags=%x",
341 __func__
, flags
, mp
->m_sb
.sb_qflags
);
345 * If everything's up to-date incore, then don't waste time.
347 if ((mp
->m_qflags
& flags
) == flags
)
351 * Change sb_qflags on disk but not incore mp->qflags
352 * if this is the root filesystem.
354 spin_lock(&mp
->m_sb_lock
);
355 qf
= mp
->m_sb
.sb_qflags
;
356 mp
->m_sb
.sb_qflags
= qf
| flags
;
357 spin_unlock(&mp
->m_sb_lock
);
360 * There's nothing to change if it's the same.
362 if ((qf
& flags
) == flags
)
365 error
= xfs_sync_sb(mp
, false);
369 * If we aren't trying to switch on quota enforcement, we are done.
371 if (((mp
->m_sb
.sb_qflags
& XFS_UQUOTA_ACCT
) !=
372 (mp
->m_qflags
& XFS_UQUOTA_ACCT
)) ||
373 ((mp
->m_sb
.sb_qflags
& XFS_PQUOTA_ACCT
) !=
374 (mp
->m_qflags
& XFS_PQUOTA_ACCT
)) ||
375 ((mp
->m_sb
.sb_qflags
& XFS_GQUOTA_ACCT
) !=
376 (mp
->m_qflags
& XFS_GQUOTA_ACCT
)))
379 if (! XFS_IS_QUOTA_RUNNING(mp
))
383 * Switch on quota enforcement in core.
385 mutex_lock(&mp
->m_quotainfo
->qi_quotaofflock
);
386 mp
->m_qflags
|= (flags
& XFS_ALL_QUOTA_ENFD
);
387 mutex_unlock(&mp
->m_quotainfo
->qi_quotaofflock
);
394 * Return quota status information, such as uquota-off, enforcements, etc.
395 * for Q_XGETQSTAT command.
398 xfs_qm_scall_getqstat(
399 struct xfs_mount
*mp
,
400 struct fs_quota_stat
*out
)
402 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
403 struct xfs_inode
*uip
= NULL
;
404 struct xfs_inode
*gip
= NULL
;
405 struct xfs_inode
*pip
= NULL
;
406 bool tempuqip
= false;
407 bool tempgqip
= false;
408 bool temppqip
= false;
410 memset(out
, 0, sizeof(fs_quota_stat_t
));
412 out
->qs_version
= FS_QSTAT_VERSION
;
413 out
->qs_flags
= (__uint16_t
) xfs_qm_export_flags(mp
->m_qflags
&
415 XFS_ALL_QUOTA_ENFD
));
416 uip
= q
->qi_uquotaip
;
417 gip
= q
->qi_gquotaip
;
418 pip
= q
->qi_pquotaip
;
419 if (!uip
&& mp
->m_sb
.sb_uquotino
!= NULLFSINO
) {
420 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_uquotino
,
424 if (!gip
&& mp
->m_sb
.sb_gquotino
!= NULLFSINO
) {
425 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_gquotino
,
430 * Q_XGETQSTAT doesn't have room for both group and project quotas.
431 * So, allow the project quota values to be copied out only if
432 * there is no group quota information available.
435 if (!pip
&& mp
->m_sb
.sb_pquotino
!= NULLFSINO
) {
436 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_pquotino
,
443 out
->qs_uquota
.qfs_ino
= mp
->m_sb
.sb_uquotino
;
444 out
->qs_uquota
.qfs_nblks
= uip
->i_d
.di_nblocks
;
445 out
->qs_uquota
.qfs_nextents
= uip
->i_d
.di_nextents
;
451 out
->qs_gquota
.qfs_ino
= mp
->m_sb
.sb_gquotino
;
452 out
->qs_gquota
.qfs_nblks
= gip
->i_d
.di_nblocks
;
453 out
->qs_gquota
.qfs_nextents
= gip
->i_d
.di_nextents
;
458 out
->qs_gquota
.qfs_ino
= mp
->m_sb
.sb_gquotino
;
459 out
->qs_gquota
.qfs_nblks
= pip
->i_d
.di_nblocks
;
460 out
->qs_gquota
.qfs_nextents
= pip
->i_d
.di_nextents
;
464 out
->qs_incoredqs
= q
->qi_dquots
;
465 out
->qs_btimelimit
= q
->qi_btimelimit
;
466 out
->qs_itimelimit
= q
->qi_itimelimit
;
467 out
->qs_rtbtimelimit
= q
->qi_rtbtimelimit
;
468 out
->qs_bwarnlimit
= q
->qi_bwarnlimit
;
469 out
->qs_iwarnlimit
= q
->qi_iwarnlimit
;
475 * Return quota status information, such as uquota-off, enforcements, etc.
476 * for Q_XGETQSTATV command, to support separate project quota field.
479 xfs_qm_scall_getqstatv(
480 struct xfs_mount
*mp
,
481 struct fs_quota_statv
*out
)
483 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
484 struct xfs_inode
*uip
= NULL
;
485 struct xfs_inode
*gip
= NULL
;
486 struct xfs_inode
*pip
= NULL
;
487 bool tempuqip
= false;
488 bool tempgqip
= false;
489 bool temppqip
= false;
491 out
->qs_flags
= (__uint16_t
) xfs_qm_export_flags(mp
->m_qflags
&
493 XFS_ALL_QUOTA_ENFD
));
494 out
->qs_uquota
.qfs_ino
= mp
->m_sb
.sb_uquotino
;
495 out
->qs_gquota
.qfs_ino
= mp
->m_sb
.sb_gquotino
;
496 out
->qs_pquota
.qfs_ino
= mp
->m_sb
.sb_pquotino
;
498 uip
= q
->qi_uquotaip
;
499 gip
= q
->qi_gquotaip
;
500 pip
= q
->qi_pquotaip
;
501 if (!uip
&& mp
->m_sb
.sb_uquotino
!= NULLFSINO
) {
502 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_uquotino
,
506 if (!gip
&& mp
->m_sb
.sb_gquotino
!= NULLFSINO
) {
507 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_gquotino
,
511 if (!pip
&& mp
->m_sb
.sb_pquotino
!= NULLFSINO
) {
512 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_pquotino
,
517 out
->qs_uquota
.qfs_nblks
= uip
->i_d
.di_nblocks
;
518 out
->qs_uquota
.qfs_nextents
= uip
->i_d
.di_nextents
;
524 out
->qs_gquota
.qfs_nblks
= gip
->i_d
.di_nblocks
;
525 out
->qs_gquota
.qfs_nextents
= gip
->i_d
.di_nextents
;
530 out
->qs_pquota
.qfs_nblks
= pip
->i_d
.di_nblocks
;
531 out
->qs_pquota
.qfs_nextents
= pip
->i_d
.di_nextents
;
535 out
->qs_incoredqs
= q
->qi_dquots
;
536 out
->qs_btimelimit
= q
->qi_btimelimit
;
537 out
->qs_itimelimit
= q
->qi_itimelimit
;
538 out
->qs_rtbtimelimit
= q
->qi_rtbtimelimit
;
539 out
->qs_bwarnlimit
= q
->qi_bwarnlimit
;
540 out
->qs_iwarnlimit
= q
->qi_iwarnlimit
;
545 #define XFS_QC_MASK \
546 (QC_LIMIT_MASK | QC_TIMER_MASK | QC_WARNS_MASK)
549 * Adjust quota limits, and start/stop timers accordingly.
552 xfs_qm_scall_setqlim(
553 struct xfs_mount
*mp
,
556 struct qc_dqblk
*newlim
)
558 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
559 struct xfs_disk_dquot
*ddq
;
560 struct xfs_dquot
*dqp
;
561 struct xfs_trans
*tp
;
563 xfs_qcnt_t hard
, soft
;
565 if (newlim
->d_fieldmask
& ~XFS_QC_MASK
)
567 if ((newlim
->d_fieldmask
& XFS_QC_MASK
) == 0)
571 * We don't want to race with a quotaoff so take the quotaoff lock.
572 * We don't hold an inode lock, so there's nothing else to stop
573 * a quotaoff from happening.
575 mutex_lock(&q
->qi_quotaofflock
);
578 * Get the dquot (locked) before we start, as we need to do a
579 * transaction to allocate it if it doesn't exist. Once we have the
580 * dquot, unlock it so we can start the next transaction safely. We hold
581 * a reference to the dquot, so it's safe to do this unlock/lock without
582 * it being reclaimed in the mean time.
584 error
= xfs_qm_dqget(mp
, NULL
, id
, type
, XFS_QMOPT_DQALLOC
, &dqp
);
586 ASSERT(error
!= -ENOENT
);
591 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_SETQLIM
);
592 error
= xfs_trans_reserve(tp
, &M_RES(mp
)->tr_qm_setqlim
, 0, 0);
594 xfs_trans_cancel(tp
, 0);
599 xfs_trans_dqjoin(tp
, dqp
);
603 * Make sure that hardlimits are >= soft limits before changing.
605 hard
= (newlim
->d_fieldmask
& QC_SPC_HARD
) ?
606 (xfs_qcnt_t
) XFS_B_TO_FSB(mp
, newlim
->d_spc_hardlimit
) :
607 be64_to_cpu(ddq
->d_blk_hardlimit
);
608 soft
= (newlim
->d_fieldmask
& QC_SPC_SOFT
) ?
609 (xfs_qcnt_t
) XFS_B_TO_FSB(mp
, newlim
->d_spc_softlimit
) :
610 be64_to_cpu(ddq
->d_blk_softlimit
);
611 if (hard
== 0 || hard
>= soft
) {
612 ddq
->d_blk_hardlimit
= cpu_to_be64(hard
);
613 ddq
->d_blk_softlimit
= cpu_to_be64(soft
);
614 xfs_dquot_set_prealloc_limits(dqp
);
616 q
->qi_bhardlimit
= hard
;
617 q
->qi_bsoftlimit
= soft
;
620 xfs_debug(mp
, "blkhard %Ld < blksoft %Ld", hard
, soft
);
622 hard
= (newlim
->d_fieldmask
& QC_RT_SPC_HARD
) ?
623 (xfs_qcnt_t
) XFS_B_TO_FSB(mp
, newlim
->d_rt_spc_hardlimit
) :
624 be64_to_cpu(ddq
->d_rtb_hardlimit
);
625 soft
= (newlim
->d_fieldmask
& QC_RT_SPC_SOFT
) ?
626 (xfs_qcnt_t
) XFS_B_TO_FSB(mp
, newlim
->d_rt_spc_softlimit
) :
627 be64_to_cpu(ddq
->d_rtb_softlimit
);
628 if (hard
== 0 || hard
>= soft
) {
629 ddq
->d_rtb_hardlimit
= cpu_to_be64(hard
);
630 ddq
->d_rtb_softlimit
= cpu_to_be64(soft
);
632 q
->qi_rtbhardlimit
= hard
;
633 q
->qi_rtbsoftlimit
= soft
;
636 xfs_debug(mp
, "rtbhard %Ld < rtbsoft %Ld", hard
, soft
);
639 hard
= (newlim
->d_fieldmask
& QC_INO_HARD
) ?
640 (xfs_qcnt_t
) newlim
->d_ino_hardlimit
:
641 be64_to_cpu(ddq
->d_ino_hardlimit
);
642 soft
= (newlim
->d_fieldmask
& QC_INO_SOFT
) ?
643 (xfs_qcnt_t
) newlim
->d_ino_softlimit
:
644 be64_to_cpu(ddq
->d_ino_softlimit
);
645 if (hard
== 0 || hard
>= soft
) {
646 ddq
->d_ino_hardlimit
= cpu_to_be64(hard
);
647 ddq
->d_ino_softlimit
= cpu_to_be64(soft
);
649 q
->qi_ihardlimit
= hard
;
650 q
->qi_isoftlimit
= soft
;
653 xfs_debug(mp
, "ihard %Ld < isoft %Ld", hard
, soft
);
657 * Update warnings counter(s) if requested
659 if (newlim
->d_fieldmask
& QC_SPC_WARNS
)
660 ddq
->d_bwarns
= cpu_to_be16(newlim
->d_spc_warns
);
661 if (newlim
->d_fieldmask
& QC_INO_WARNS
)
662 ddq
->d_iwarns
= cpu_to_be16(newlim
->d_ino_warns
);
663 if (newlim
->d_fieldmask
& QC_RT_SPC_WARNS
)
664 ddq
->d_rtbwarns
= cpu_to_be16(newlim
->d_rt_spc_warns
);
668 * Timelimits for the super user set the relative time
669 * the other users can be over quota for this file system.
670 * If it is zero a default is used. Ditto for the default
671 * soft and hard limit values (already done, above), and
674 if (newlim
->d_fieldmask
& QC_SPC_TIMER
) {
675 q
->qi_btimelimit
= newlim
->d_spc_timer
;
676 ddq
->d_btimer
= cpu_to_be32(newlim
->d_spc_timer
);
678 if (newlim
->d_fieldmask
& QC_INO_TIMER
) {
679 q
->qi_itimelimit
= newlim
->d_ino_timer
;
680 ddq
->d_itimer
= cpu_to_be32(newlim
->d_ino_timer
);
682 if (newlim
->d_fieldmask
& QC_RT_SPC_TIMER
) {
683 q
->qi_rtbtimelimit
= newlim
->d_rt_spc_timer
;
684 ddq
->d_rtbtimer
= cpu_to_be32(newlim
->d_rt_spc_timer
);
686 if (newlim
->d_fieldmask
& QC_SPC_WARNS
)
687 q
->qi_bwarnlimit
= newlim
->d_spc_warns
;
688 if (newlim
->d_fieldmask
& QC_INO_WARNS
)
689 q
->qi_iwarnlimit
= newlim
->d_ino_warns
;
690 if (newlim
->d_fieldmask
& QC_RT_SPC_WARNS
)
691 q
->qi_rtbwarnlimit
= newlim
->d_rt_spc_warns
;
694 * If the user is now over quota, start the timelimit.
695 * The user will not be 'warned'.
696 * Note that we keep the timers ticking, whether enforcement
697 * is on or off. We don't really want to bother with iterating
698 * over all ondisk dquots and turning the timers on/off.
700 xfs_qm_adjust_dqtimers(mp
, ddq
);
702 dqp
->dq_flags
|= XFS_DQ_DIRTY
;
703 xfs_trans_log_dquot(tp
, dqp
);
705 error
= xfs_trans_commit(tp
, 0);
710 mutex_unlock(&q
->qi_quotaofflock
);
715 xfs_qm_log_quotaoff_end(
717 xfs_qoff_logitem_t
*startqoff
,
722 xfs_qoff_logitem_t
*qoffi
;
724 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF_END
);
726 error
= xfs_trans_reserve(tp
, &M_RES(mp
)->tr_qm_equotaoff
, 0, 0);
728 xfs_trans_cancel(tp
, 0);
732 qoffi
= xfs_trans_get_qoff_item(tp
, startqoff
,
733 flags
& XFS_ALL_QUOTA_ACCT
);
734 xfs_trans_log_quotaoff_item(tp
, qoffi
);
737 * We have to make sure that the transaction is secure on disk before we
738 * return and actually stop quota accounting. So, make it synchronous.
739 * We don't care about quotoff's performance.
741 xfs_trans_set_sync(tp
);
742 error
= xfs_trans_commit(tp
, 0);
750 xfs_qoff_logitem_t
**qoffstartp
,
755 xfs_qoff_logitem_t
*qoffi
;
759 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF
);
760 error
= xfs_trans_reserve(tp
, &M_RES(mp
)->tr_qm_quotaoff
, 0, 0);
762 xfs_trans_cancel(tp
, 0);
766 qoffi
= xfs_trans_get_qoff_item(tp
, NULL
, flags
& XFS_ALL_QUOTA_ACCT
);
767 xfs_trans_log_quotaoff_item(tp
, qoffi
);
769 spin_lock(&mp
->m_sb_lock
);
770 mp
->m_sb
.sb_qflags
= (mp
->m_qflags
& ~(flags
)) & XFS_MOUNT_QUOTA_ALL
;
771 spin_unlock(&mp
->m_sb_lock
);
776 * We have to make sure that the transaction is secure on disk before we
777 * return and actually stop quota accounting. So, make it synchronous.
778 * We don't care about quotoff's performance.
780 xfs_trans_set_sync(tp
);
781 error
= xfs_trans_commit(tp
, 0);
792 xfs_qm_scall_getquota(
793 struct xfs_mount
*mp
,
796 struct qc_dqblk
*dst
)
798 struct xfs_dquot
*dqp
;
802 * Try to get the dquot. We don't want it allocated on disk, so
803 * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't
804 * exist, we'll get ENOENT back.
806 error
= xfs_qm_dqget(mp
, NULL
, id
, type
, 0, &dqp
);
811 * If everything's NULL, this dquot doesn't quite exist as far as
812 * our utility programs are concerned.
814 if (XFS_IS_DQUOT_UNINITIALIZED(dqp
)) {
819 memset(dst
, 0, sizeof(*dst
));
820 dst
->d_spc_hardlimit
=
821 XFS_FSB_TO_B(mp
, be64_to_cpu(dqp
->q_core
.d_blk_hardlimit
));
822 dst
->d_spc_softlimit
=
823 XFS_FSB_TO_B(mp
, be64_to_cpu(dqp
->q_core
.d_blk_softlimit
));
824 dst
->d_ino_hardlimit
= be64_to_cpu(dqp
->q_core
.d_ino_hardlimit
);
825 dst
->d_ino_softlimit
= be64_to_cpu(dqp
->q_core
.d_ino_softlimit
);
826 dst
->d_space
= XFS_FSB_TO_B(mp
, dqp
->q_res_bcount
);
827 dst
->d_ino_count
= dqp
->q_res_icount
;
828 dst
->d_spc_timer
= be32_to_cpu(dqp
->q_core
.d_btimer
);
829 dst
->d_ino_timer
= be32_to_cpu(dqp
->q_core
.d_itimer
);
830 dst
->d_ino_warns
= be16_to_cpu(dqp
->q_core
.d_iwarns
);
831 dst
->d_spc_warns
= be16_to_cpu(dqp
->q_core
.d_bwarns
);
832 dst
->d_rt_spc_hardlimit
=
833 XFS_FSB_TO_B(mp
, be64_to_cpu(dqp
->q_core
.d_rtb_hardlimit
));
834 dst
->d_rt_spc_softlimit
=
835 XFS_FSB_TO_B(mp
, be64_to_cpu(dqp
->q_core
.d_rtb_softlimit
));
836 dst
->d_rt_space
= XFS_FSB_TO_B(mp
, dqp
->q_res_rtbcount
);
837 dst
->d_rt_spc_timer
= be32_to_cpu(dqp
->q_core
.d_rtbtimer
);
838 dst
->d_rt_spc_warns
= be16_to_cpu(dqp
->q_core
.d_rtbwarns
);
841 * Internally, we don't reset all the timers when quota enforcement
842 * gets turned off. No need to confuse the user level code,
843 * so return zeroes in that case.
845 if ((!XFS_IS_UQUOTA_ENFORCED(mp
) &&
846 dqp
->q_core
.d_flags
== XFS_DQ_USER
) ||
847 (!XFS_IS_GQUOTA_ENFORCED(mp
) &&
848 dqp
->q_core
.d_flags
== XFS_DQ_GROUP
) ||
849 (!XFS_IS_PQUOTA_ENFORCED(mp
) &&
850 dqp
->q_core
.d_flags
== XFS_DQ_PROJ
)) {
851 dst
->d_spc_timer
= 0;
852 dst
->d_ino_timer
= 0;
853 dst
->d_rt_spc_timer
= 0;
857 if (((XFS_IS_UQUOTA_ENFORCED(mp
) && type
== XFS_DQ_USER
) ||
858 (XFS_IS_GQUOTA_ENFORCED(mp
) && type
== XFS_DQ_GROUP
) ||
859 (XFS_IS_PQUOTA_ENFORCED(mp
) && type
== XFS_DQ_PROJ
)) &&
861 if ((dst
->d_space
> dst
->d_spc_softlimit
) &&
862 (dst
->d_spc_softlimit
> 0)) {
863 ASSERT(dst
->d_spc_timer
!= 0);
865 if ((dst
->d_ino_count
> dst
->d_ino_softlimit
) &&
866 (dst
->d_ino_softlimit
> 0)) {
867 ASSERT(dst
->d_ino_timer
!= 0);
883 if (flags
& XFS_UQUOTA_ACCT
)
884 uflags
|= FS_QUOTA_UDQ_ACCT
;
885 if (flags
& XFS_GQUOTA_ACCT
)
886 uflags
|= FS_QUOTA_GDQ_ACCT
;
887 if (flags
& XFS_PQUOTA_ACCT
)
888 uflags
|= FS_QUOTA_PDQ_ACCT
;
889 if (flags
& XFS_UQUOTA_ENFD
)
890 uflags
|= FS_QUOTA_UDQ_ENFD
;
891 if (flags
& XFS_GQUOTA_ENFD
)
892 uflags
|= FS_QUOTA_GDQ_ENFD
;
893 if (flags
& XFS_PQUOTA_ENFD
)
894 uflags
|= FS_QUOTA_PDQ_ENFD
;
901 struct xfs_inode
*ip
,
905 /* skip quota inodes */
906 if (ip
== ip
->i_mount
->m_quotainfo
->qi_uquotaip
||
907 ip
== ip
->i_mount
->m_quotainfo
->qi_gquotaip
||
908 ip
== ip
->i_mount
->m_quotainfo
->qi_pquotaip
) {
909 ASSERT(ip
->i_udquot
== NULL
);
910 ASSERT(ip
->i_gdquot
== NULL
);
911 ASSERT(ip
->i_pdquot
== NULL
);
915 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
916 if ((flags
& XFS_UQUOTA_ACCT
) && ip
->i_udquot
) {
917 xfs_qm_dqrele(ip
->i_udquot
);
920 if ((flags
& XFS_GQUOTA_ACCT
) && ip
->i_gdquot
) {
921 xfs_qm_dqrele(ip
->i_gdquot
);
924 if ((flags
& XFS_PQUOTA_ACCT
) && ip
->i_pdquot
) {
925 xfs_qm_dqrele(ip
->i_pdquot
);
928 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
934 * Go thru all the inodes in the file system, releasing their dquots.
936 * Note that the mount structure gets modified to indicate that quotas are off
937 * AFTER this, in the case of quotaoff.
940 xfs_qm_dqrele_all_inodes(
941 struct xfs_mount
*mp
,
944 ASSERT(mp
->m_quotainfo
);
945 xfs_inode_ag_iterator(mp
, xfs_dqrele_inode
, flags
, NULL
);