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>
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"
41 #include "xfs_utils.h"
43 #include "xfs_trace.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
;
72 * No file system can have quotas enabled on disk but not in core.
73 * Note that quota utilities (like quotaoff) _expect_
74 * errno == EEXIST here.
76 if ((mp
->m_qflags
& flags
) == 0)
77 return XFS_ERROR(EEXIST
);
80 flags
&= (XFS_ALL_QUOTA_ACCT
| XFS_ALL_QUOTA_ENFD
);
83 * We don't want to deal with two quotaoffs messing up each other,
84 * so we're going to serialize it. quotaoff isn't exactly a performance
86 * If quotaoff, then we must be dealing with the root filesystem.
89 mutex_lock(&q
->qi_quotaofflock
);
92 * If we're just turning off quota enforcement, change mp and go.
94 if ((flags
& XFS_ALL_QUOTA_ACCT
) == 0) {
95 mp
->m_qflags
&= ~(flags
);
97 spin_lock(&mp
->m_sb_lock
);
98 mp
->m_sb
.sb_qflags
= mp
->m_qflags
;
99 spin_unlock(&mp
->m_sb_lock
);
100 mutex_unlock(&q
->qi_quotaofflock
);
102 /* XXX what to do if error ? Revert back to old vals incore ? */
103 error
= xfs_qm_write_sb_changes(mp
, XFS_SB_QFLAGS
);
108 inactivate_flags
= 0;
110 * If accounting is off, we must turn enforcement off, clear the
111 * quota 'CHKD' certificate to make it known that we have to
112 * do a quotacheck the next time this quota is turned on.
114 if (flags
& XFS_UQUOTA_ACCT
) {
115 dqtype
|= XFS_QMOPT_UQUOTA
;
116 flags
|= (XFS_UQUOTA_CHKD
| XFS_UQUOTA_ENFD
);
117 inactivate_flags
|= XFS_UQUOTA_ACTIVE
;
119 if (flags
& XFS_GQUOTA_ACCT
) {
120 dqtype
|= XFS_QMOPT_GQUOTA
;
121 flags
|= (XFS_OQUOTA_CHKD
| XFS_OQUOTA_ENFD
);
122 inactivate_flags
|= XFS_GQUOTA_ACTIVE
;
123 } else if (flags
& XFS_PQUOTA_ACCT
) {
124 dqtype
|= XFS_QMOPT_PQUOTA
;
125 flags
|= (XFS_OQUOTA_CHKD
| XFS_OQUOTA_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. We may not be able to get rid
180 * of all dquots, because dquots can have temporary references that
181 * are not attached to inodes. eg. xfs_setattr, xfs_create.
182 * So, if we couldn't purge all the dquots from the filesystem,
183 * we can't get rid of the incore data structures.
185 while ((nculprits
= xfs_qm_dqpurge_all(mp
, dqtype
)))
186 delay(10 * nculprits
);
189 * Transactions that had started before ACTIVE state bit was cleared
190 * could have logged many dquots, so they'd have higher LSNs than
191 * the first QUOTAOFF log record does. If we happen to crash when
192 * the tail of the log has gone past the QUOTAOFF record, but
193 * before the last dquot modification, those dquots __will__
194 * recover, and that's not good.
196 * So, we have QUOTAOFF start and end logitems; the start
197 * logitem won't get overwritten until the end logitem appears...
199 error
= xfs_qm_log_quotaoff_end(mp
, qoffstart
, flags
);
201 /* We're screwed now. Shutdown is the only option. */
202 xfs_force_shutdown(mp
, SHUTDOWN_CORRUPT_INCORE
);
207 * If quotas is completely disabled, close shop.
209 if (((flags
& XFS_MOUNT_QUOTA_ALL
) == XFS_MOUNT_QUOTA_SET1
) ||
210 ((flags
& XFS_MOUNT_QUOTA_ALL
) == XFS_MOUNT_QUOTA_SET2
)) {
211 mutex_unlock(&q
->qi_quotaofflock
);
212 xfs_qm_destroy_quotainfo(mp
);
217 * Release our quotainode references if we don't need them anymore.
219 if ((dqtype
& XFS_QMOPT_UQUOTA
) && q
->qi_uquotaip
) {
220 IRELE(q
->qi_uquotaip
);
221 q
->qi_uquotaip
= NULL
;
223 if ((dqtype
& (XFS_QMOPT_GQUOTA
|XFS_QMOPT_PQUOTA
)) && q
->qi_gquotaip
) {
224 IRELE(q
->qi_gquotaip
);
225 q
->qi_gquotaip
= NULL
;
229 mutex_unlock(&q
->qi_quotaofflock
);
234 xfs_qm_scall_trunc_qfile(
235 struct xfs_mount
*mp
,
238 struct xfs_inode
*ip
;
239 struct xfs_trans
*tp
;
242 if (ino
== NULLFSINO
)
245 error
= xfs_iget(mp
, NULL
, ino
, 0, 0, &ip
);
249 xfs_ilock(ip
, XFS_IOLOCK_EXCL
);
251 tp
= xfs_trans_alloc(mp
, XFS_TRANS_TRUNCATE_FILE
);
252 error
= xfs_trans_reserve(tp
, 0, XFS_ITRUNCATE_LOG_RES(mp
), 0,
253 XFS_TRANS_PERM_LOG_RES
,
254 XFS_ITRUNCATE_LOG_COUNT
);
256 xfs_trans_cancel(tp
, 0);
257 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
261 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
262 xfs_trans_ijoin(tp
, ip
, 0);
265 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
267 error
= xfs_itruncate_extents(&tp
, ip
, XFS_DATA_FORK
, 0);
269 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
|
274 ASSERT(ip
->i_d
.di_nextents
== 0);
276 xfs_trans_ichgtime(tp
, ip
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
277 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
);
280 xfs_iunlock(ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
287 xfs_qm_scall_trunc_qfiles(
291 int error
= 0, error2
= 0;
293 if (!xfs_sb_version_hasquota(&mp
->m_sb
) || flags
== 0) {
294 xfs_debug(mp
, "%s: flags=%x m_qflags=%x\n",
295 __func__
, flags
, mp
->m_qflags
);
296 return XFS_ERROR(EINVAL
);
299 if (flags
& XFS_DQ_USER
)
300 error
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_uquotino
);
301 if (flags
& (XFS_DQ_GROUP
|XFS_DQ_PROJ
))
302 error2
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_gquotino
);
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
))
347 ((flags
& XFS_PQUOTA_ACCT
) == 0 &&
348 (mp
->m_sb
.sb_qflags
& XFS_PQUOTA_ACCT
) == 0 &&
349 (flags
& XFS_GQUOTA_ACCT
) == 0 &&
350 (mp
->m_sb
.sb_qflags
& XFS_GQUOTA_ACCT
) == 0 &&
351 (flags
& XFS_OQUOTA_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
, *gip
;
417 boolean_t tempuqip
, tempgqip
;
420 tempuqip
= tempgqip
= B_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
;
429 out
->qs_flags
= (__uint16_t
) xfs_qm_export_flags(mp
->m_qflags
&
431 XFS_ALL_QUOTA_ENFD
));
433 out
->qs_uquota
.qfs_ino
= mp
->m_sb
.sb_uquotino
;
434 out
->qs_gquota
.qfs_ino
= mp
->m_sb
.sb_gquotino
;
437 uip
= q
->qi_uquotaip
;
438 gip
= q
->qi_gquotaip
;
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 out
->qs_uquota
.qfs_nblks
= uip
->i_d
.di_nblocks
;
452 out
->qs_uquota
.qfs_nextents
= uip
->i_d
.di_nextents
;
457 out
->qs_gquota
.qfs_nblks
= gip
->i_d
.di_nblocks
;
458 out
->qs_gquota
.qfs_nextents
= gip
->i_d
.di_nextents
;
463 out
->qs_incoredqs
= q
->qi_dquots
;
464 out
->qs_btimelimit
= q
->qi_btimelimit
;
465 out
->qs_itimelimit
= q
->qi_itimelimit
;
466 out
->qs_rtbtimelimit
= q
->qi_rtbtimelimit
;
467 out
->qs_bwarnlimit
= q
->qi_bwarnlimit
;
468 out
->qs_iwarnlimit
= q
->qi_iwarnlimit
;
473 #define XFS_DQ_MASK \
474 (FS_DQ_LIMIT_MASK | FS_DQ_TIMER_MASK | FS_DQ_WARNS_MASK)
477 * Adjust quota limits, and start/stop timers accordingly.
480 xfs_qm_scall_setqlim(
484 fs_disk_quota_t
*newlim
)
486 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
487 xfs_disk_dquot_t
*ddq
;
491 xfs_qcnt_t hard
, soft
;
493 if (newlim
->d_fieldmask
& ~XFS_DQ_MASK
)
495 if ((newlim
->d_fieldmask
& XFS_DQ_MASK
) == 0)
498 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_SETQLIM
);
499 if ((error
= xfs_trans_reserve(tp
, 0, sizeof(xfs_disk_dquot_t
) + 128,
500 0, 0, XFS_DEFAULT_LOG_COUNT
))) {
501 xfs_trans_cancel(tp
, 0);
506 * We don't want to race with a quotaoff so take the quotaoff lock.
507 * (We don't hold an inode lock, so there's nothing else to stop
508 * a quotaoff from happening). (XXXThis doesn't currently happen
509 * because we take the vfslock before calling xfs_qm_sysent).
511 mutex_lock(&q
->qi_quotaofflock
);
514 * Get the dquot (locked), and join it to the transaction.
515 * Allocate the dquot if this doesn't exist.
517 if ((error
= xfs_qm_dqget(mp
, NULL
, id
, type
, XFS_QMOPT_DQALLOC
, &dqp
))) {
518 xfs_trans_cancel(tp
, XFS_TRANS_ABORT
);
519 ASSERT(error
!= ENOENT
);
522 xfs_trans_dqjoin(tp
, dqp
);
526 * Make sure that hardlimits are >= soft limits before changing.
528 hard
= (newlim
->d_fieldmask
& FS_DQ_BHARD
) ?
529 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_blk_hardlimit
) :
530 be64_to_cpu(ddq
->d_blk_hardlimit
);
531 soft
= (newlim
->d_fieldmask
& FS_DQ_BSOFT
) ?
532 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_blk_softlimit
) :
533 be64_to_cpu(ddq
->d_blk_softlimit
);
534 if (hard
== 0 || hard
>= soft
) {
535 ddq
->d_blk_hardlimit
= cpu_to_be64(hard
);
536 ddq
->d_blk_softlimit
= cpu_to_be64(soft
);
538 q
->qi_bhardlimit
= hard
;
539 q
->qi_bsoftlimit
= soft
;
542 xfs_debug(mp
, "blkhard %Ld < blksoft %Ld\n", hard
, soft
);
544 hard
= (newlim
->d_fieldmask
& FS_DQ_RTBHARD
) ?
545 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_hardlimit
) :
546 be64_to_cpu(ddq
->d_rtb_hardlimit
);
547 soft
= (newlim
->d_fieldmask
& FS_DQ_RTBSOFT
) ?
548 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_softlimit
) :
549 be64_to_cpu(ddq
->d_rtb_softlimit
);
550 if (hard
== 0 || hard
>= soft
) {
551 ddq
->d_rtb_hardlimit
= cpu_to_be64(hard
);
552 ddq
->d_rtb_softlimit
= cpu_to_be64(soft
);
554 q
->qi_rtbhardlimit
= hard
;
555 q
->qi_rtbsoftlimit
= soft
;
558 xfs_debug(mp
, "rtbhard %Ld < rtbsoft %Ld\n", hard
, soft
);
561 hard
= (newlim
->d_fieldmask
& FS_DQ_IHARD
) ?
562 (xfs_qcnt_t
) newlim
->d_ino_hardlimit
:
563 be64_to_cpu(ddq
->d_ino_hardlimit
);
564 soft
= (newlim
->d_fieldmask
& FS_DQ_ISOFT
) ?
565 (xfs_qcnt_t
) newlim
->d_ino_softlimit
:
566 be64_to_cpu(ddq
->d_ino_softlimit
);
567 if (hard
== 0 || hard
>= soft
) {
568 ddq
->d_ino_hardlimit
= cpu_to_be64(hard
);
569 ddq
->d_ino_softlimit
= cpu_to_be64(soft
);
571 q
->qi_ihardlimit
= hard
;
572 q
->qi_isoftlimit
= soft
;
575 xfs_debug(mp
, "ihard %Ld < isoft %Ld\n", hard
, soft
);
579 * Update warnings counter(s) if requested
581 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
582 ddq
->d_bwarns
= cpu_to_be16(newlim
->d_bwarns
);
583 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
584 ddq
->d_iwarns
= cpu_to_be16(newlim
->d_iwarns
);
585 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
586 ddq
->d_rtbwarns
= cpu_to_be16(newlim
->d_rtbwarns
);
590 * Timelimits for the super user set the relative time
591 * the other users can be over quota for this file system.
592 * If it is zero a default is used. Ditto for the default
593 * soft and hard limit values (already done, above), and
596 if (newlim
->d_fieldmask
& FS_DQ_BTIMER
) {
597 q
->qi_btimelimit
= newlim
->d_btimer
;
598 ddq
->d_btimer
= cpu_to_be32(newlim
->d_btimer
);
600 if (newlim
->d_fieldmask
& FS_DQ_ITIMER
) {
601 q
->qi_itimelimit
= newlim
->d_itimer
;
602 ddq
->d_itimer
= cpu_to_be32(newlim
->d_itimer
);
604 if (newlim
->d_fieldmask
& FS_DQ_RTBTIMER
) {
605 q
->qi_rtbtimelimit
= newlim
->d_rtbtimer
;
606 ddq
->d_rtbtimer
= cpu_to_be32(newlim
->d_rtbtimer
);
608 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
609 q
->qi_bwarnlimit
= newlim
->d_bwarns
;
610 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
611 q
->qi_iwarnlimit
= newlim
->d_iwarns
;
612 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
613 q
->qi_rtbwarnlimit
= newlim
->d_rtbwarns
;
616 * If the user is now over quota, start the timelimit.
617 * The user will not be 'warned'.
618 * Note that we keep the timers ticking, whether enforcement
619 * is on or off. We don't really want to bother with iterating
620 * over all ondisk dquots and turning the timers on/off.
622 xfs_qm_adjust_dqtimers(mp
, ddq
);
624 dqp
->dq_flags
|= XFS_DQ_DIRTY
;
625 xfs_trans_log_dquot(tp
, dqp
);
627 error
= xfs_trans_commit(tp
, 0);
631 mutex_unlock(&q
->qi_quotaofflock
);
636 xfs_qm_log_quotaoff_end(
638 xfs_qoff_logitem_t
*startqoff
,
643 xfs_qoff_logitem_t
*qoffi
;
645 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF_END
);
647 if ((error
= xfs_trans_reserve(tp
, 0, sizeof(xfs_qoff_logitem_t
) * 2,
648 0, 0, XFS_DEFAULT_LOG_COUNT
))) {
649 xfs_trans_cancel(tp
, 0);
653 qoffi
= xfs_trans_get_qoff_item(tp
, startqoff
,
654 flags
& XFS_ALL_QUOTA_ACCT
);
655 xfs_trans_log_quotaoff_item(tp
, qoffi
);
658 * We have to make sure that the transaction is secure on disk before we
659 * return and actually stop quota accounting. So, make it synchronous.
660 * We don't care about quotoff's performance.
662 xfs_trans_set_sync(tp
);
663 error
= xfs_trans_commit(tp
, 0);
671 xfs_qoff_logitem_t
**qoffstartp
,
676 xfs_qoff_logitem_t
*qoffi
=NULL
;
679 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF
);
680 if ((error
= xfs_trans_reserve(tp
, 0,
681 sizeof(xfs_qoff_logitem_t
) * 2 +
682 mp
->m_sb
.sb_sectsize
+ 128,
685 XFS_DEFAULT_LOG_COUNT
))) {
689 qoffi
= xfs_trans_get_qoff_item(tp
, NULL
, flags
& XFS_ALL_QUOTA_ACCT
);
690 xfs_trans_log_quotaoff_item(tp
, qoffi
);
692 spin_lock(&mp
->m_sb_lock
);
693 oldsbqflag
= mp
->m_sb
.sb_qflags
;
694 mp
->m_sb
.sb_qflags
= (mp
->m_qflags
& ~(flags
)) & XFS_MOUNT_QUOTA_ALL
;
695 spin_unlock(&mp
->m_sb_lock
);
697 xfs_mod_sb(tp
, XFS_SB_QFLAGS
);
700 * We have to make sure that the transaction is secure on disk before we
701 * return and actually stop quota accounting. So, make it synchronous.
702 * We don't care about quotoff's performance.
704 xfs_trans_set_sync(tp
);
705 error
= xfs_trans_commit(tp
, 0);
709 xfs_trans_cancel(tp
, 0);
711 * No one else is modifying sb_qflags, so this is OK.
712 * We still hold the quotaofflock.
714 spin_lock(&mp
->m_sb_lock
);
715 mp
->m_sb
.sb_qflags
= oldsbqflag
;
716 spin_unlock(&mp
->m_sb_lock
);
724 xfs_qm_scall_getquota(
725 struct xfs_mount
*mp
,
728 struct fs_disk_quota
*dst
)
730 struct xfs_dquot
*dqp
;
734 * Try to get the dquot. We don't want it allocated on disk, so
735 * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't
736 * exist, we'll get ENOENT back.
738 error
= xfs_qm_dqget(mp
, NULL
, id
, type
, 0, &dqp
);
743 * If everything's NULL, this dquot doesn't quite exist as far as
744 * our utility programs are concerned.
746 if (XFS_IS_DQUOT_UNINITIALIZED(dqp
)) {
747 error
= XFS_ERROR(ENOENT
);
751 memset(dst
, 0, sizeof(*dst
));
752 dst
->d_version
= FS_DQUOT_VERSION
;
753 dst
->d_flags
= xfs_qm_export_qtype_flags(dqp
->q_core
.d_flags
);
754 dst
->d_id
= be32_to_cpu(dqp
->q_core
.d_id
);
755 dst
->d_blk_hardlimit
=
756 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_blk_hardlimit
));
757 dst
->d_blk_softlimit
=
758 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_blk_softlimit
));
759 dst
->d_ino_hardlimit
= be64_to_cpu(dqp
->q_core
.d_ino_hardlimit
);
760 dst
->d_ino_softlimit
= be64_to_cpu(dqp
->q_core
.d_ino_softlimit
);
761 dst
->d_bcount
= XFS_FSB_TO_BB(mp
, dqp
->q_res_bcount
);
762 dst
->d_icount
= dqp
->q_res_icount
;
763 dst
->d_btimer
= be32_to_cpu(dqp
->q_core
.d_btimer
);
764 dst
->d_itimer
= be32_to_cpu(dqp
->q_core
.d_itimer
);
765 dst
->d_iwarns
= be16_to_cpu(dqp
->q_core
.d_iwarns
);
766 dst
->d_bwarns
= be16_to_cpu(dqp
->q_core
.d_bwarns
);
767 dst
->d_rtb_hardlimit
=
768 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_rtb_hardlimit
));
769 dst
->d_rtb_softlimit
=
770 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_rtb_softlimit
));
771 dst
->d_rtbcount
= XFS_FSB_TO_BB(mp
, dqp
->q_res_rtbcount
);
772 dst
->d_rtbtimer
= be32_to_cpu(dqp
->q_core
.d_rtbtimer
);
773 dst
->d_rtbwarns
= be16_to_cpu(dqp
->q_core
.d_rtbwarns
);
776 * Internally, we don't reset all the timers when quota enforcement
777 * gets turned off. No need to confuse the user level code,
778 * so return zeroes in that case.
780 if ((!XFS_IS_UQUOTA_ENFORCED(mp
) && dqp
->q_core
.d_flags
== XFS_DQ_USER
) ||
781 (!XFS_IS_OQUOTA_ENFORCED(mp
) &&
782 (dqp
->q_core
.d_flags
& (XFS_DQ_PROJ
| XFS_DQ_GROUP
)))) {
789 if (((XFS_IS_UQUOTA_ENFORCED(mp
) && dst
->d_flags
== FS_USER_QUOTA
) ||
790 (XFS_IS_OQUOTA_ENFORCED(mp
) &&
791 (dst
->d_flags
& (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
)))) &&
793 if (((int) dst
->d_bcount
> (int) dst
->d_blk_softlimit
) &&
794 (dst
->d_blk_softlimit
> 0)) {
795 ASSERT(dst
->d_btimer
!= 0);
797 if (((int) dst
->d_icount
> (int) dst
->d_ino_softlimit
) &&
798 (dst
->d_ino_softlimit
> 0)) {
799 ASSERT(dst
->d_itimer
!= 0);
809 xfs_qm_export_qtype_flags(
813 * Can't be more than one, or none.
815 ASSERT((flags
& (FS_PROJ_QUOTA
| FS_USER_QUOTA
)) !=
816 (FS_PROJ_QUOTA
| FS_USER_QUOTA
));
817 ASSERT((flags
& (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
)) !=
818 (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
));
819 ASSERT((flags
& (FS_USER_QUOTA
| FS_GROUP_QUOTA
)) !=
820 (FS_USER_QUOTA
| FS_GROUP_QUOTA
));
821 ASSERT((flags
& (FS_PROJ_QUOTA
|FS_USER_QUOTA
|FS_GROUP_QUOTA
)) != 0);
823 return (flags
& XFS_DQ_USER
) ?
824 FS_USER_QUOTA
: (flags
& XFS_DQ_PROJ
) ?
825 FS_PROJ_QUOTA
: FS_GROUP_QUOTA
;
835 if (flags
& XFS_UQUOTA_ACCT
)
836 uflags
|= FS_QUOTA_UDQ_ACCT
;
837 if (flags
& XFS_PQUOTA_ACCT
)
838 uflags
|= FS_QUOTA_PDQ_ACCT
;
839 if (flags
& XFS_GQUOTA_ACCT
)
840 uflags
|= FS_QUOTA_GDQ_ACCT
;
841 if (flags
& XFS_UQUOTA_ENFD
)
842 uflags
|= FS_QUOTA_UDQ_ENFD
;
843 if (flags
& (XFS_OQUOTA_ENFD
)) {
844 uflags
|= (flags
& XFS_GQUOTA_ACCT
) ?
845 FS_QUOTA_GDQ_ENFD
: FS_QUOTA_PDQ_ENFD
;
853 struct xfs_inode
*ip
,
854 struct xfs_perag
*pag
,
857 /* skip quota inodes */
858 if (ip
== ip
->i_mount
->m_quotainfo
->qi_uquotaip
||
859 ip
== ip
->i_mount
->m_quotainfo
->qi_gquotaip
) {
860 ASSERT(ip
->i_udquot
== NULL
);
861 ASSERT(ip
->i_gdquot
== NULL
);
865 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
866 if ((flags
& XFS_UQUOTA_ACCT
) && ip
->i_udquot
) {
867 xfs_qm_dqrele(ip
->i_udquot
);
870 if (flags
& (XFS_PQUOTA_ACCT
|XFS_GQUOTA_ACCT
) && ip
->i_gdquot
) {
871 xfs_qm_dqrele(ip
->i_gdquot
);
874 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
880 * Go thru all the inodes in the file system, releasing their dquots.
882 * Note that the mount structure gets modified to indicate that quotas are off
883 * AFTER this, in the case of quotaoff.
886 xfs_qm_dqrele_all_inodes(
887 struct xfs_mount
*mp
,
890 ASSERT(mp
->m_quotainfo
);
891 xfs_inode_ag_iterator(mp
, xfs_dqrele_inode
, flags
);