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 quotas is completely disabled, close shop.
204 if (((flags
& XFS_MOUNT_QUOTA_ALL
) == XFS_MOUNT_QUOTA_SET1
) ||
205 ((flags
& XFS_MOUNT_QUOTA_ALL
) == XFS_MOUNT_QUOTA_SET2
)) {
206 mutex_unlock(&q
->qi_quotaofflock
);
207 xfs_qm_destroy_quotainfo(mp
);
212 * Release our quotainode references if we don't need them anymore.
214 if ((dqtype
& XFS_QMOPT_UQUOTA
) && q
->qi_uquotaip
) {
215 IRELE(q
->qi_uquotaip
);
216 q
->qi_uquotaip
= NULL
;
218 if ((dqtype
& XFS_QMOPT_GQUOTA
) && q
->qi_gquotaip
) {
219 IRELE(q
->qi_gquotaip
);
220 q
->qi_gquotaip
= NULL
;
222 if ((dqtype
& XFS_QMOPT_PQUOTA
) && q
->qi_pquotaip
) {
223 IRELE(q
->qi_pquotaip
);
224 q
->qi_pquotaip
= NULL
;
228 mutex_unlock(&q
->qi_quotaofflock
);
233 xfs_qm_scall_trunc_qfile(
234 struct xfs_mount
*mp
,
237 struct xfs_inode
*ip
;
238 struct xfs_trans
*tp
;
241 if (ino
== NULLFSINO
)
244 error
= xfs_iget(mp
, NULL
, ino
, 0, 0, &ip
);
248 xfs_ilock(ip
, XFS_IOLOCK_EXCL
);
250 tp
= xfs_trans_alloc(mp
, XFS_TRANS_TRUNCATE_FILE
);
251 error
= xfs_trans_reserve(tp
, 0, XFS_ITRUNCATE_LOG_RES(mp
), 0,
252 XFS_TRANS_PERM_LOG_RES
,
253 XFS_ITRUNCATE_LOG_COUNT
);
255 xfs_trans_cancel(tp
, 0);
256 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
260 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
261 xfs_trans_ijoin(tp
, ip
, 0);
264 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
266 error
= xfs_itruncate_extents(&tp
, ip
, XFS_DATA_FORK
, 0);
268 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
|
273 ASSERT(ip
->i_d
.di_nextents
== 0);
275 xfs_trans_ichgtime(tp
, ip
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
276 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
);
279 xfs_iunlock(ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
286 xfs_qm_scall_trunc_qfiles(
290 int error
= 0, error2
= 0;
292 if (!xfs_sb_version_hasquota(&mp
->m_sb
) || flags
== 0) {
293 xfs_debug(mp
, "%s: flags=%x m_qflags=%x\n",
294 __func__
, flags
, mp
->m_qflags
);
295 return XFS_ERROR(EINVAL
);
298 if (flags
& XFS_DQ_USER
)
299 error
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_uquotino
);
300 if (flags
& (XFS_DQ_GROUP
|XFS_DQ_PROJ
))
301 error2
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_gquotino
);
303 return error
? error
: error2
;
307 * Switch on (a given) quota enforcement for a filesystem. This takes
308 * effect immediately.
309 * (Switching on quota accounting must be done at mount time.)
312 xfs_qm_scall_quotaon(
320 flags
&= (XFS_ALL_QUOTA_ACCT
| XFS_ALL_QUOTA_ENFD
);
322 * Switching on quota accounting must be done at mount time.
324 flags
&= ~(XFS_ALL_QUOTA_ACCT
);
329 xfs_debug(mp
, "%s: zero flags, m_qflags=%x\n",
330 __func__
, mp
->m_qflags
);
331 return XFS_ERROR(EINVAL
);
334 /* No fs can turn on quotas with a delayed effect */
335 ASSERT((flags
& XFS_ALL_QUOTA_ACCT
) == 0);
338 * Can't enforce without accounting. We check the superblock
339 * qflags here instead of m_qflags because rootfs can have
340 * quota acct on ondisk without m_qflags' knowing.
342 if (((flags
& XFS_UQUOTA_ACCT
) == 0 &&
343 (mp
->m_sb
.sb_qflags
& XFS_UQUOTA_ACCT
) == 0 &&
344 (flags
& XFS_UQUOTA_ENFD
)) ||
345 ((flags
& XFS_GQUOTA_ACCT
) == 0 &&
346 (mp
->m_sb
.sb_qflags
& XFS_GQUOTA_ACCT
) == 0 &&
347 (flags
& XFS_GQUOTA_ENFD
)) ||
348 ((flags
& XFS_PQUOTA_ACCT
) == 0 &&
349 (mp
->m_sb
.sb_qflags
& XFS_PQUOTA_ACCT
) == 0 &&
350 (flags
& XFS_PQUOTA_ENFD
))) {
352 "%s: Can't enforce without acct, flags=%x sbflags=%x\n",
353 __func__
, flags
, mp
->m_sb
.sb_qflags
);
354 return XFS_ERROR(EINVAL
);
357 * If everything's up to-date incore, then don't waste time.
359 if ((mp
->m_qflags
& flags
) == flags
)
360 return XFS_ERROR(EEXIST
);
363 * Change sb_qflags on disk but not incore mp->qflags
364 * if this is the root filesystem.
366 spin_lock(&mp
->m_sb_lock
);
367 qf
= mp
->m_sb
.sb_qflags
;
368 mp
->m_sb
.sb_qflags
= qf
| flags
;
369 spin_unlock(&mp
->m_sb_lock
);
372 * There's nothing to change if it's the same.
374 if ((qf
& flags
) == flags
&& sbflags
== 0)
375 return XFS_ERROR(EEXIST
);
376 sbflags
|= XFS_SB_QFLAGS
;
378 if ((error
= xfs_qm_write_sb_changes(mp
, sbflags
)))
381 * If we aren't trying to switch on quota enforcement, we are done.
383 if (((mp
->m_sb
.sb_qflags
& XFS_UQUOTA_ACCT
) !=
384 (mp
->m_qflags
& XFS_UQUOTA_ACCT
)) ||
385 ((mp
->m_sb
.sb_qflags
& XFS_PQUOTA_ACCT
) !=
386 (mp
->m_qflags
& XFS_PQUOTA_ACCT
)) ||
387 ((mp
->m_sb
.sb_qflags
& XFS_GQUOTA_ACCT
) !=
388 (mp
->m_qflags
& XFS_GQUOTA_ACCT
)) ||
389 (flags
& XFS_ALL_QUOTA_ENFD
) == 0)
392 if (! XFS_IS_QUOTA_RUNNING(mp
))
393 return XFS_ERROR(ESRCH
);
396 * Switch on quota enforcement in core.
398 mutex_lock(&mp
->m_quotainfo
->qi_quotaofflock
);
399 mp
->m_qflags
|= (flags
& XFS_ALL_QUOTA_ENFD
);
400 mutex_unlock(&mp
->m_quotainfo
->qi_quotaofflock
);
407 * Return quota status information, such as uquota-off, enforcements, etc.
410 xfs_qm_scall_getqstat(
411 struct xfs_mount
*mp
,
412 struct fs_quota_stat
*out
)
414 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
415 struct xfs_inode
*uip
= NULL
;
416 struct xfs_inode
*gip
= NULL
;
417 bool tempuqip
= false;
418 bool tempgqip
= false;
420 memset(out
, 0, sizeof(fs_quota_stat_t
));
422 out
->qs_version
= FS_QSTAT_VERSION
;
423 if (!xfs_sb_version_hasquota(&mp
->m_sb
)) {
424 out
->qs_uquota
.qfs_ino
= NULLFSINO
;
425 out
->qs_gquota
.qfs_ino
= NULLFSINO
;
428 out
->qs_flags
= (__uint16_t
) xfs_qm_export_flags(mp
->m_qflags
&
430 XFS_ALL_QUOTA_ENFD
));
432 out
->qs_uquota
.qfs_ino
= mp
->m_sb
.sb_uquotino
;
433 out
->qs_gquota
.qfs_ino
= mp
->m_sb
.sb_gquotino
;
436 uip
= q
->qi_uquotaip
;
437 gip
= q
->qi_gquotaip
;
439 if (!uip
&& mp
->m_sb
.sb_uquotino
!= NULLFSINO
) {
440 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_uquotino
,
444 if (!gip
&& mp
->m_sb
.sb_gquotino
!= NULLFSINO
) {
445 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_gquotino
,
450 out
->qs_uquota
.qfs_nblks
= uip
->i_d
.di_nblocks
;
451 out
->qs_uquota
.qfs_nextents
= uip
->i_d
.di_nextents
;
456 out
->qs_gquota
.qfs_nblks
= gip
->i_d
.di_nblocks
;
457 out
->qs_gquota
.qfs_nextents
= gip
->i_d
.di_nextents
;
462 out
->qs_incoredqs
= q
->qi_dquots
;
463 out
->qs_btimelimit
= q
->qi_btimelimit
;
464 out
->qs_itimelimit
= q
->qi_itimelimit
;
465 out
->qs_rtbtimelimit
= q
->qi_rtbtimelimit
;
466 out
->qs_bwarnlimit
= q
->qi_bwarnlimit
;
467 out
->qs_iwarnlimit
= q
->qi_iwarnlimit
;
472 #define XFS_DQ_MASK \
473 (FS_DQ_LIMIT_MASK | FS_DQ_TIMER_MASK | FS_DQ_WARNS_MASK)
476 * Adjust quota limits, and start/stop timers accordingly.
479 xfs_qm_scall_setqlim(
480 struct xfs_mount
*mp
,
483 fs_disk_quota_t
*newlim
)
485 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
486 struct xfs_disk_dquot
*ddq
;
487 struct xfs_dquot
*dqp
;
488 struct xfs_trans
*tp
;
490 xfs_qcnt_t hard
, soft
;
492 if (newlim
->d_fieldmask
& ~XFS_DQ_MASK
)
494 if ((newlim
->d_fieldmask
& XFS_DQ_MASK
) == 0)
498 * We don't want to race with a quotaoff so take the quotaoff lock.
499 * We don't hold an inode lock, so there's nothing else to stop
500 * a quotaoff from happening.
502 mutex_lock(&q
->qi_quotaofflock
);
505 * Get the dquot (locked) before we start, as we need to do a
506 * transaction to allocate it if it doesn't exist. Once we have the
507 * dquot, unlock it so we can start the next transaction safely. We hold
508 * a reference to the dquot, so it's safe to do this unlock/lock without
509 * it being reclaimed in the mean time.
511 error
= xfs_qm_dqget(mp
, NULL
, id
, type
, XFS_QMOPT_DQALLOC
, &dqp
);
513 ASSERT(error
!= ENOENT
);
518 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_SETQLIM
);
519 error
= xfs_trans_reserve(tp
, 0, XFS_QM_SETQLIM_LOG_RES(mp
),
520 0, 0, XFS_DEFAULT_LOG_COUNT
);
522 xfs_trans_cancel(tp
, 0);
527 xfs_trans_dqjoin(tp
, dqp
);
531 * Make sure that hardlimits are >= soft limits before changing.
533 hard
= (newlim
->d_fieldmask
& FS_DQ_BHARD
) ?
534 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_blk_hardlimit
) :
535 be64_to_cpu(ddq
->d_blk_hardlimit
);
536 soft
= (newlim
->d_fieldmask
& FS_DQ_BSOFT
) ?
537 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_blk_softlimit
) :
538 be64_to_cpu(ddq
->d_blk_softlimit
);
539 if (hard
== 0 || hard
>= soft
) {
540 ddq
->d_blk_hardlimit
= cpu_to_be64(hard
);
541 ddq
->d_blk_softlimit
= cpu_to_be64(soft
);
542 xfs_dquot_set_prealloc_limits(dqp
);
544 q
->qi_bhardlimit
= hard
;
545 q
->qi_bsoftlimit
= soft
;
548 xfs_debug(mp
, "blkhard %Ld < blksoft %Ld\n", hard
, soft
);
550 hard
= (newlim
->d_fieldmask
& FS_DQ_RTBHARD
) ?
551 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_hardlimit
) :
552 be64_to_cpu(ddq
->d_rtb_hardlimit
);
553 soft
= (newlim
->d_fieldmask
& FS_DQ_RTBSOFT
) ?
554 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_softlimit
) :
555 be64_to_cpu(ddq
->d_rtb_softlimit
);
556 if (hard
== 0 || hard
>= soft
) {
557 ddq
->d_rtb_hardlimit
= cpu_to_be64(hard
);
558 ddq
->d_rtb_softlimit
= cpu_to_be64(soft
);
560 q
->qi_rtbhardlimit
= hard
;
561 q
->qi_rtbsoftlimit
= soft
;
564 xfs_debug(mp
, "rtbhard %Ld < rtbsoft %Ld\n", hard
, soft
);
567 hard
= (newlim
->d_fieldmask
& FS_DQ_IHARD
) ?
568 (xfs_qcnt_t
) newlim
->d_ino_hardlimit
:
569 be64_to_cpu(ddq
->d_ino_hardlimit
);
570 soft
= (newlim
->d_fieldmask
& FS_DQ_ISOFT
) ?
571 (xfs_qcnt_t
) newlim
->d_ino_softlimit
:
572 be64_to_cpu(ddq
->d_ino_softlimit
);
573 if (hard
== 0 || hard
>= soft
) {
574 ddq
->d_ino_hardlimit
= cpu_to_be64(hard
);
575 ddq
->d_ino_softlimit
= cpu_to_be64(soft
);
577 q
->qi_ihardlimit
= hard
;
578 q
->qi_isoftlimit
= soft
;
581 xfs_debug(mp
, "ihard %Ld < isoft %Ld\n", hard
, soft
);
585 * Update warnings counter(s) if requested
587 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
588 ddq
->d_bwarns
= cpu_to_be16(newlim
->d_bwarns
);
589 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
590 ddq
->d_iwarns
= cpu_to_be16(newlim
->d_iwarns
);
591 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
592 ddq
->d_rtbwarns
= cpu_to_be16(newlim
->d_rtbwarns
);
596 * Timelimits for the super user set the relative time
597 * the other users can be over quota for this file system.
598 * If it is zero a default is used. Ditto for the default
599 * soft and hard limit values (already done, above), and
602 if (newlim
->d_fieldmask
& FS_DQ_BTIMER
) {
603 q
->qi_btimelimit
= newlim
->d_btimer
;
604 ddq
->d_btimer
= cpu_to_be32(newlim
->d_btimer
);
606 if (newlim
->d_fieldmask
& FS_DQ_ITIMER
) {
607 q
->qi_itimelimit
= newlim
->d_itimer
;
608 ddq
->d_itimer
= cpu_to_be32(newlim
->d_itimer
);
610 if (newlim
->d_fieldmask
& FS_DQ_RTBTIMER
) {
611 q
->qi_rtbtimelimit
= newlim
->d_rtbtimer
;
612 ddq
->d_rtbtimer
= cpu_to_be32(newlim
->d_rtbtimer
);
614 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
615 q
->qi_bwarnlimit
= newlim
->d_bwarns
;
616 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
617 q
->qi_iwarnlimit
= newlim
->d_iwarns
;
618 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
619 q
->qi_rtbwarnlimit
= newlim
->d_rtbwarns
;
622 * If the user is now over quota, start the timelimit.
623 * The user will not be 'warned'.
624 * Note that we keep the timers ticking, whether enforcement
625 * is on or off. We don't really want to bother with iterating
626 * over all ondisk dquots and turning the timers on/off.
628 xfs_qm_adjust_dqtimers(mp
, ddq
);
630 dqp
->dq_flags
|= XFS_DQ_DIRTY
;
631 xfs_trans_log_dquot(tp
, dqp
);
633 error
= xfs_trans_commit(tp
, 0);
638 mutex_unlock(&q
->qi_quotaofflock
);
643 xfs_qm_log_quotaoff_end(
645 xfs_qoff_logitem_t
*startqoff
,
650 xfs_qoff_logitem_t
*qoffi
;
652 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF_END
);
654 error
= xfs_trans_reserve(tp
, 0, XFS_QM_QUOTAOFF_END_LOG_RES(mp
),
655 0, 0, XFS_DEFAULT_LOG_COUNT
);
657 xfs_trans_cancel(tp
, 0);
661 qoffi
= xfs_trans_get_qoff_item(tp
, startqoff
,
662 flags
& XFS_ALL_QUOTA_ACCT
);
663 xfs_trans_log_quotaoff_item(tp
, qoffi
);
666 * We have to make sure that the transaction is secure on disk before we
667 * return and actually stop quota accounting. So, make it synchronous.
668 * We don't care about quotoff's performance.
670 xfs_trans_set_sync(tp
);
671 error
= xfs_trans_commit(tp
, 0);
679 xfs_qoff_logitem_t
**qoffstartp
,
684 xfs_qoff_logitem_t
*qoffi
=NULL
;
687 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF
);
688 error
= xfs_trans_reserve(tp
, 0, XFS_QM_QUOTAOFF_LOG_RES(mp
),
689 0, 0, XFS_DEFAULT_LOG_COUNT
);
693 qoffi
= xfs_trans_get_qoff_item(tp
, NULL
, flags
& XFS_ALL_QUOTA_ACCT
);
694 xfs_trans_log_quotaoff_item(tp
, qoffi
);
696 spin_lock(&mp
->m_sb_lock
);
697 oldsbqflag
= mp
->m_sb
.sb_qflags
;
698 mp
->m_sb
.sb_qflags
= (mp
->m_qflags
& ~(flags
)) & XFS_MOUNT_QUOTA_ALL
;
699 spin_unlock(&mp
->m_sb_lock
);
701 xfs_mod_sb(tp
, XFS_SB_QFLAGS
);
704 * We have to make sure that the transaction is secure on disk before we
705 * return and actually stop quota accounting. So, make it synchronous.
706 * We don't care about quotoff's performance.
708 xfs_trans_set_sync(tp
);
709 error
= xfs_trans_commit(tp
, 0);
713 xfs_trans_cancel(tp
, 0);
715 * No one else is modifying sb_qflags, so this is OK.
716 * We still hold the quotaofflock.
718 spin_lock(&mp
->m_sb_lock
);
719 mp
->m_sb
.sb_qflags
= oldsbqflag
;
720 spin_unlock(&mp
->m_sb_lock
);
728 xfs_qm_scall_getquota(
729 struct xfs_mount
*mp
,
732 struct fs_disk_quota
*dst
)
734 struct xfs_dquot
*dqp
;
738 * Try to get the dquot. We don't want it allocated on disk, so
739 * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't
740 * exist, we'll get ENOENT back.
742 error
= xfs_qm_dqget(mp
, NULL
, id
, type
, 0, &dqp
);
747 * If everything's NULL, this dquot doesn't quite exist as far as
748 * our utility programs are concerned.
750 if (XFS_IS_DQUOT_UNINITIALIZED(dqp
)) {
751 error
= XFS_ERROR(ENOENT
);
755 memset(dst
, 0, sizeof(*dst
));
756 dst
->d_version
= FS_DQUOT_VERSION
;
757 dst
->d_flags
= xfs_qm_export_qtype_flags(dqp
->q_core
.d_flags
);
758 dst
->d_id
= be32_to_cpu(dqp
->q_core
.d_id
);
759 dst
->d_blk_hardlimit
=
760 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_blk_hardlimit
));
761 dst
->d_blk_softlimit
=
762 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_blk_softlimit
));
763 dst
->d_ino_hardlimit
= be64_to_cpu(dqp
->q_core
.d_ino_hardlimit
);
764 dst
->d_ino_softlimit
= be64_to_cpu(dqp
->q_core
.d_ino_softlimit
);
765 dst
->d_bcount
= XFS_FSB_TO_BB(mp
, dqp
->q_res_bcount
);
766 dst
->d_icount
= dqp
->q_res_icount
;
767 dst
->d_btimer
= be32_to_cpu(dqp
->q_core
.d_btimer
);
768 dst
->d_itimer
= be32_to_cpu(dqp
->q_core
.d_itimer
);
769 dst
->d_iwarns
= be16_to_cpu(dqp
->q_core
.d_iwarns
);
770 dst
->d_bwarns
= be16_to_cpu(dqp
->q_core
.d_bwarns
);
771 dst
->d_rtb_hardlimit
=
772 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_rtb_hardlimit
));
773 dst
->d_rtb_softlimit
=
774 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_rtb_softlimit
));
775 dst
->d_rtbcount
= XFS_FSB_TO_BB(mp
, dqp
->q_res_rtbcount
);
776 dst
->d_rtbtimer
= be32_to_cpu(dqp
->q_core
.d_rtbtimer
);
777 dst
->d_rtbwarns
= be16_to_cpu(dqp
->q_core
.d_rtbwarns
);
780 * Internally, we don't reset all the timers when quota enforcement
781 * gets turned off. No need to confuse the user level code,
782 * so return zeroes in that case.
784 if ((!XFS_IS_UQUOTA_ENFORCED(mp
) &&
785 dqp
->q_core
.d_flags
== XFS_DQ_USER
) ||
786 (!XFS_IS_GQUOTA_ENFORCED(mp
) &&
787 dqp
->q_core
.d_flags
== XFS_DQ_GROUP
) ||
788 (!XFS_IS_PQUOTA_ENFORCED(mp
) &&
789 dqp
->q_core
.d_flags
== XFS_DQ_PROJ
)) {
796 if (((XFS_IS_UQUOTA_ENFORCED(mp
) && dst
->d_flags
== FS_USER_QUOTA
) ||
797 (XFS_IS_GQUOTA_ENFORCED(mp
) && dst
->d_flags
== FS_GROUP_QUOTA
) ||
798 (XFS_IS_PQUOTA_ENFORCED(mp
) && dst
->d_flags
== FS_PROJ_QUOTA
)) &&
800 if ((dst
->d_bcount
> dst
->d_blk_softlimit
) &&
801 (dst
->d_blk_softlimit
> 0)) {
802 ASSERT(dst
->d_btimer
!= 0);
804 if ((dst
->d_icount
> dst
->d_ino_softlimit
) &&
805 (dst
->d_ino_softlimit
> 0)) {
806 ASSERT(dst
->d_itimer
!= 0);
816 xfs_qm_export_qtype_flags(
820 * Can't be more than one, or none.
822 ASSERT((flags
& (FS_PROJ_QUOTA
| FS_USER_QUOTA
)) !=
823 (FS_PROJ_QUOTA
| FS_USER_QUOTA
));
824 ASSERT((flags
& (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
)) !=
825 (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
));
826 ASSERT((flags
& (FS_USER_QUOTA
| FS_GROUP_QUOTA
)) !=
827 (FS_USER_QUOTA
| FS_GROUP_QUOTA
));
828 ASSERT((flags
& (FS_PROJ_QUOTA
|FS_USER_QUOTA
|FS_GROUP_QUOTA
)) != 0);
830 return (flags
& XFS_DQ_USER
) ?
831 FS_USER_QUOTA
: (flags
& XFS_DQ_PROJ
) ?
832 FS_PROJ_QUOTA
: FS_GROUP_QUOTA
;
842 if (flags
& XFS_UQUOTA_ACCT
)
843 uflags
|= FS_QUOTA_UDQ_ACCT
;
844 if (flags
& XFS_GQUOTA_ACCT
)
845 uflags
|= FS_QUOTA_GDQ_ACCT
;
846 if (flags
& XFS_PQUOTA_ACCT
)
847 uflags
|= FS_QUOTA_PDQ_ACCT
;
848 if (flags
& XFS_UQUOTA_ENFD
)
849 uflags
|= FS_QUOTA_UDQ_ENFD
;
850 if (flags
& XFS_GQUOTA_ENFD
)
851 uflags
|= FS_QUOTA_GDQ_ENFD
;
852 if (flags
& XFS_PQUOTA_ENFD
)
853 uflags
|= FS_QUOTA_PDQ_ENFD
;
860 struct xfs_inode
*ip
,
861 struct xfs_perag
*pag
,
865 /* skip quota inodes */
866 if (ip
== ip
->i_mount
->m_quotainfo
->qi_uquotaip
||
867 ip
== ip
->i_mount
->m_quotainfo
->qi_gquotaip
||
868 ip
== ip
->i_mount
->m_quotainfo
->qi_pquotaip
) {
869 ASSERT(ip
->i_udquot
== NULL
);
870 ASSERT(ip
->i_gdquot
== NULL
);
871 ASSERT(ip
->i_pdquot
== NULL
);
875 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
876 if ((flags
& XFS_UQUOTA_ACCT
) && ip
->i_udquot
) {
877 xfs_qm_dqrele(ip
->i_udquot
);
880 if ((flags
& XFS_GQUOTA_ACCT
) && ip
->i_gdquot
) {
881 xfs_qm_dqrele(ip
->i_gdquot
);
884 if ((flags
& XFS_PQUOTA_ACCT
) && ip
->i_pdquot
) {
885 xfs_qm_dqrele(ip
->i_pdquot
);
888 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
894 * Go thru all the inodes in the file system, releasing their dquots.
896 * Note that the mount structure gets modified to indicate that quotas are off
897 * AFTER this, in the case of quotaoff.
900 xfs_qm_dqrele_all_inodes(
901 struct xfs_mount
*mp
,
904 ASSERT(mp
->m_quotainfo
);
905 xfs_inode_ag_iterator(mp
, xfs_dqrele_inode
, flags
, NULL
);