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_OQUOTA_CHKD
| XFS_OQUOTA_ENFD
);
121 inactivate_flags
|= XFS_GQUOTA_ACTIVE
;
122 } else if (flags
& XFS_PQUOTA_ACCT
) {
123 dqtype
|= XFS_QMOPT_PQUOTA
;
124 flags
|= (XFS_OQUOTA_CHKD
| XFS_OQUOTA_ENFD
);
125 inactivate_flags
|= XFS_PQUOTA_ACTIVE
;
129 * Nothing to do? Don't complain. This happens when we're just
130 * turning off quota enforcement.
132 if ((mp
->m_qflags
& flags
) == 0)
136 * Write the LI_QUOTAOFF log record, and do SB changes atomically,
137 * and synchronously. If we fail to write, we should abort the
138 * operation as it cannot be recovered safely if we crash.
140 error
= xfs_qm_log_quotaoff(mp
, &qoffstart
, flags
);
145 * Next we clear the XFS_MOUNT_*DQ_ACTIVE bit(s) in the mount struct
146 * to take care of the race between dqget and quotaoff. We don't take
147 * any special locks to reset these bits. All processes need to check
148 * these bits *after* taking inode lock(s) to see if the particular
149 * quota type is in the process of being turned off. If *ACTIVE, it is
150 * guaranteed that all dquot structures and all quotainode ptrs will all
151 * stay valid as long as that inode is kept locked.
153 * There is no turning back after this.
155 mp
->m_qflags
&= ~inactivate_flags
;
158 * Give back all the dquot reference(s) held by inodes.
159 * Here we go thru every single incore inode in this file system, and
160 * do a dqrele on the i_udquot/i_gdquot that it may have.
161 * Essentially, as long as somebody has an inode locked, this guarantees
162 * that quotas will not be turned off. This is handy because in a
163 * transaction once we lock the inode(s) and check for quotaon, we can
164 * depend on the quota inodes (and other things) being valid as long as
165 * we keep the lock(s).
167 xfs_qm_dqrele_all_inodes(mp
, flags
);
170 * Next we make the changes in the quota flag in the mount struct.
171 * This isn't protected by a particular lock directly, because we
172 * don't want to take a mrlock every time we depend on quotas being on.
174 mp
->m_qflags
&= ~flags
;
177 * Go through all the dquots of this file system and purge them,
178 * according to what was turned off.
180 xfs_qm_dqpurge_all(mp
, dqtype
);
183 * Transactions that had started before ACTIVE state bit was cleared
184 * could have logged many dquots, so they'd have higher LSNs than
185 * the first QUOTAOFF log record does. If we happen to crash when
186 * the tail of the log has gone past the QUOTAOFF record, but
187 * before the last dquot modification, those dquots __will__
188 * recover, and that's not good.
190 * So, we have QUOTAOFF start and end logitems; the start
191 * logitem won't get overwritten until the end logitem appears...
193 error
= xfs_qm_log_quotaoff_end(mp
, qoffstart
, flags
);
195 /* We're screwed now. Shutdown is the only option. */
196 xfs_force_shutdown(mp
, SHUTDOWN_CORRUPT_INCORE
);
201 * If quotas is completely disabled, close shop.
203 if (((flags
& XFS_MOUNT_QUOTA_ALL
) == XFS_MOUNT_QUOTA_SET1
) ||
204 ((flags
& XFS_MOUNT_QUOTA_ALL
) == XFS_MOUNT_QUOTA_SET2
)) {
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
|XFS_QMOPT_PQUOTA
)) && q
->qi_gquotaip
) {
218 IRELE(q
->qi_gquotaip
);
219 q
->qi_gquotaip
= NULL
;
223 mutex_unlock(&q
->qi_quotaofflock
);
228 xfs_qm_scall_trunc_qfile(
229 struct xfs_mount
*mp
,
232 struct xfs_inode
*ip
;
233 struct xfs_trans
*tp
;
236 if (ino
== NULLFSINO
)
239 error
= xfs_iget(mp
, NULL
, ino
, 0, 0, &ip
);
243 xfs_ilock(ip
, XFS_IOLOCK_EXCL
);
245 tp
= xfs_trans_alloc(mp
, XFS_TRANS_TRUNCATE_FILE
);
246 error
= xfs_trans_reserve(tp
, 0, XFS_ITRUNCATE_LOG_RES(mp
), 0,
247 XFS_TRANS_PERM_LOG_RES
,
248 XFS_ITRUNCATE_LOG_COUNT
);
250 xfs_trans_cancel(tp
, 0);
251 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
255 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
256 xfs_trans_ijoin(tp
, ip
, 0);
259 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
261 error
= xfs_itruncate_extents(&tp
, ip
, XFS_DATA_FORK
, 0);
263 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
|
268 ASSERT(ip
->i_d
.di_nextents
== 0);
270 xfs_trans_ichgtime(tp
, ip
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
271 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
);
274 xfs_iunlock(ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
281 xfs_qm_scall_trunc_qfiles(
285 int error
= 0, error2
= 0;
287 if (!xfs_sb_version_hasquota(&mp
->m_sb
) || flags
== 0) {
288 xfs_debug(mp
, "%s: flags=%x m_qflags=%x\n",
289 __func__
, flags
, mp
->m_qflags
);
290 return XFS_ERROR(EINVAL
);
293 if (flags
& XFS_DQ_USER
)
294 error
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_uquotino
);
295 if (flags
& (XFS_DQ_GROUP
|XFS_DQ_PROJ
))
296 error2
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_gquotino
);
298 return error
? error
: error2
;
302 * Switch on (a given) quota enforcement for a filesystem. This takes
303 * effect immediately.
304 * (Switching on quota accounting must be done at mount time.)
307 xfs_qm_scall_quotaon(
315 flags
&= (XFS_ALL_QUOTA_ACCT
| XFS_ALL_QUOTA_ENFD
);
317 * Switching on quota accounting must be done at mount time.
319 flags
&= ~(XFS_ALL_QUOTA_ACCT
);
324 xfs_debug(mp
, "%s: zero flags, m_qflags=%x\n",
325 __func__
, mp
->m_qflags
);
326 return XFS_ERROR(EINVAL
);
329 /* No fs can turn on quotas with a delayed effect */
330 ASSERT((flags
& XFS_ALL_QUOTA_ACCT
) == 0);
333 * Can't enforce without accounting. We check the superblock
334 * qflags here instead of m_qflags because rootfs can have
335 * quota acct on ondisk without m_qflags' knowing.
337 if (((flags
& XFS_UQUOTA_ACCT
) == 0 &&
338 (mp
->m_sb
.sb_qflags
& XFS_UQUOTA_ACCT
) == 0 &&
339 (flags
& XFS_UQUOTA_ENFD
))
341 ((flags
& XFS_PQUOTA_ACCT
) == 0 &&
342 (mp
->m_sb
.sb_qflags
& XFS_PQUOTA_ACCT
) == 0 &&
343 (flags
& XFS_GQUOTA_ACCT
) == 0 &&
344 (mp
->m_sb
.sb_qflags
& XFS_GQUOTA_ACCT
) == 0 &&
345 (flags
& XFS_OQUOTA_ENFD
))) {
347 "%s: Can't enforce without acct, flags=%x sbflags=%x\n",
348 __func__
, flags
, mp
->m_sb
.sb_qflags
);
349 return XFS_ERROR(EINVAL
);
352 * If everything's up to-date incore, then don't waste time.
354 if ((mp
->m_qflags
& flags
) == flags
)
355 return XFS_ERROR(EEXIST
);
358 * Change sb_qflags on disk but not incore mp->qflags
359 * if this is the root filesystem.
361 spin_lock(&mp
->m_sb_lock
);
362 qf
= mp
->m_sb
.sb_qflags
;
363 mp
->m_sb
.sb_qflags
= qf
| flags
;
364 spin_unlock(&mp
->m_sb_lock
);
367 * There's nothing to change if it's the same.
369 if ((qf
& flags
) == flags
&& sbflags
== 0)
370 return XFS_ERROR(EEXIST
);
371 sbflags
|= XFS_SB_QFLAGS
;
373 if ((error
= xfs_qm_write_sb_changes(mp
, sbflags
)))
376 * If we aren't trying to switch on quota enforcement, we are done.
378 if (((mp
->m_sb
.sb_qflags
& XFS_UQUOTA_ACCT
) !=
379 (mp
->m_qflags
& XFS_UQUOTA_ACCT
)) ||
380 ((mp
->m_sb
.sb_qflags
& XFS_PQUOTA_ACCT
) !=
381 (mp
->m_qflags
& XFS_PQUOTA_ACCT
)) ||
382 ((mp
->m_sb
.sb_qflags
& XFS_GQUOTA_ACCT
) !=
383 (mp
->m_qflags
& XFS_GQUOTA_ACCT
)) ||
384 (flags
& XFS_ALL_QUOTA_ENFD
) == 0)
387 if (! XFS_IS_QUOTA_RUNNING(mp
))
388 return XFS_ERROR(ESRCH
);
391 * Switch on quota enforcement in core.
393 mutex_lock(&mp
->m_quotainfo
->qi_quotaofflock
);
394 mp
->m_qflags
|= (flags
& XFS_ALL_QUOTA_ENFD
);
395 mutex_unlock(&mp
->m_quotainfo
->qi_quotaofflock
);
402 * Return quota status information, such as uquota-off, enforcements, etc.
405 xfs_qm_scall_getqstat(
406 struct xfs_mount
*mp
,
407 struct fs_quota_stat
*out
)
409 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
410 struct xfs_inode
*uip
, *gip
;
411 bool tempuqip
, tempgqip
;
414 tempuqip
= tempgqip
= false;
415 memset(out
, 0, sizeof(fs_quota_stat_t
));
417 out
->qs_version
= FS_QSTAT_VERSION
;
418 if (!xfs_sb_version_hasquota(&mp
->m_sb
)) {
419 out
->qs_uquota
.qfs_ino
= NULLFSINO
;
420 out
->qs_gquota
.qfs_ino
= NULLFSINO
;
423 out
->qs_flags
= (__uint16_t
) xfs_qm_export_flags(mp
->m_qflags
&
425 XFS_ALL_QUOTA_ENFD
));
427 out
->qs_uquota
.qfs_ino
= mp
->m_sb
.sb_uquotino
;
428 out
->qs_gquota
.qfs_ino
= mp
->m_sb
.sb_gquotino
;
431 uip
= q
->qi_uquotaip
;
432 gip
= q
->qi_gquotaip
;
434 if (!uip
&& mp
->m_sb
.sb_uquotino
!= NULLFSINO
) {
435 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_uquotino
,
439 if (!gip
&& mp
->m_sb
.sb_gquotino
!= NULLFSINO
) {
440 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_gquotino
,
445 out
->qs_uquota
.qfs_nblks
= uip
->i_d
.di_nblocks
;
446 out
->qs_uquota
.qfs_nextents
= uip
->i_d
.di_nextents
;
451 out
->qs_gquota
.qfs_nblks
= gip
->i_d
.di_nblocks
;
452 out
->qs_gquota
.qfs_nextents
= gip
->i_d
.di_nextents
;
457 out
->qs_incoredqs
= q
->qi_dquots
;
458 out
->qs_btimelimit
= q
->qi_btimelimit
;
459 out
->qs_itimelimit
= q
->qi_itimelimit
;
460 out
->qs_rtbtimelimit
= q
->qi_rtbtimelimit
;
461 out
->qs_bwarnlimit
= q
->qi_bwarnlimit
;
462 out
->qs_iwarnlimit
= q
->qi_iwarnlimit
;
467 #define XFS_DQ_MASK \
468 (FS_DQ_LIMIT_MASK | FS_DQ_TIMER_MASK | FS_DQ_WARNS_MASK)
471 * Adjust quota limits, and start/stop timers accordingly.
474 xfs_qm_scall_setqlim(
478 fs_disk_quota_t
*newlim
)
480 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
481 xfs_disk_dquot_t
*ddq
;
485 xfs_qcnt_t hard
, soft
;
487 if (newlim
->d_fieldmask
& ~XFS_DQ_MASK
)
489 if ((newlim
->d_fieldmask
& XFS_DQ_MASK
) == 0)
492 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_SETQLIM
);
493 error
= xfs_trans_reserve(tp
, 0, XFS_QM_SETQLIM_LOG_RES(mp
),
494 0, 0, XFS_DEFAULT_LOG_COUNT
);
496 xfs_trans_cancel(tp
, 0);
501 * We don't want to race with a quotaoff so take the quotaoff lock.
502 * (We don't hold an inode lock, so there's nothing else to stop
503 * a quotaoff from happening). (XXXThis doesn't currently happen
504 * because we take the vfslock before calling xfs_qm_sysent).
506 mutex_lock(&q
->qi_quotaofflock
);
509 * Get the dquot (locked), and join it to the transaction.
510 * Allocate the dquot if this doesn't exist.
512 if ((error
= xfs_qm_dqget(mp
, NULL
, id
, type
, XFS_QMOPT_DQALLOC
, &dqp
))) {
513 xfs_trans_cancel(tp
, XFS_TRANS_ABORT
);
514 ASSERT(error
!= ENOENT
);
517 xfs_trans_dqjoin(tp
, dqp
);
521 * Make sure that hardlimits are >= soft limits before changing.
523 hard
= (newlim
->d_fieldmask
& FS_DQ_BHARD
) ?
524 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_blk_hardlimit
) :
525 be64_to_cpu(ddq
->d_blk_hardlimit
);
526 soft
= (newlim
->d_fieldmask
& FS_DQ_BSOFT
) ?
527 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_blk_softlimit
) :
528 be64_to_cpu(ddq
->d_blk_softlimit
);
529 if (hard
== 0 || hard
>= soft
) {
530 ddq
->d_blk_hardlimit
= cpu_to_be64(hard
);
531 ddq
->d_blk_softlimit
= cpu_to_be64(soft
);
533 q
->qi_bhardlimit
= hard
;
534 q
->qi_bsoftlimit
= soft
;
537 xfs_debug(mp
, "blkhard %Ld < blksoft %Ld\n", hard
, soft
);
539 hard
= (newlim
->d_fieldmask
& FS_DQ_RTBHARD
) ?
540 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_hardlimit
) :
541 be64_to_cpu(ddq
->d_rtb_hardlimit
);
542 soft
= (newlim
->d_fieldmask
& FS_DQ_RTBSOFT
) ?
543 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_softlimit
) :
544 be64_to_cpu(ddq
->d_rtb_softlimit
);
545 if (hard
== 0 || hard
>= soft
) {
546 ddq
->d_rtb_hardlimit
= cpu_to_be64(hard
);
547 ddq
->d_rtb_softlimit
= cpu_to_be64(soft
);
549 q
->qi_rtbhardlimit
= hard
;
550 q
->qi_rtbsoftlimit
= soft
;
553 xfs_debug(mp
, "rtbhard %Ld < rtbsoft %Ld\n", hard
, soft
);
556 hard
= (newlim
->d_fieldmask
& FS_DQ_IHARD
) ?
557 (xfs_qcnt_t
) newlim
->d_ino_hardlimit
:
558 be64_to_cpu(ddq
->d_ino_hardlimit
);
559 soft
= (newlim
->d_fieldmask
& FS_DQ_ISOFT
) ?
560 (xfs_qcnt_t
) newlim
->d_ino_softlimit
:
561 be64_to_cpu(ddq
->d_ino_softlimit
);
562 if (hard
== 0 || hard
>= soft
) {
563 ddq
->d_ino_hardlimit
= cpu_to_be64(hard
);
564 ddq
->d_ino_softlimit
= cpu_to_be64(soft
);
566 q
->qi_ihardlimit
= hard
;
567 q
->qi_isoftlimit
= soft
;
570 xfs_debug(mp
, "ihard %Ld < isoft %Ld\n", hard
, soft
);
574 * Update warnings counter(s) if requested
576 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
577 ddq
->d_bwarns
= cpu_to_be16(newlim
->d_bwarns
);
578 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
579 ddq
->d_iwarns
= cpu_to_be16(newlim
->d_iwarns
);
580 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
581 ddq
->d_rtbwarns
= cpu_to_be16(newlim
->d_rtbwarns
);
585 * Timelimits for the super user set the relative time
586 * the other users can be over quota for this file system.
587 * If it is zero a default is used. Ditto for the default
588 * soft and hard limit values (already done, above), and
591 if (newlim
->d_fieldmask
& FS_DQ_BTIMER
) {
592 q
->qi_btimelimit
= newlim
->d_btimer
;
593 ddq
->d_btimer
= cpu_to_be32(newlim
->d_btimer
);
595 if (newlim
->d_fieldmask
& FS_DQ_ITIMER
) {
596 q
->qi_itimelimit
= newlim
->d_itimer
;
597 ddq
->d_itimer
= cpu_to_be32(newlim
->d_itimer
);
599 if (newlim
->d_fieldmask
& FS_DQ_RTBTIMER
) {
600 q
->qi_rtbtimelimit
= newlim
->d_rtbtimer
;
601 ddq
->d_rtbtimer
= cpu_to_be32(newlim
->d_rtbtimer
);
603 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
604 q
->qi_bwarnlimit
= newlim
->d_bwarns
;
605 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
606 q
->qi_iwarnlimit
= newlim
->d_iwarns
;
607 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
608 q
->qi_rtbwarnlimit
= newlim
->d_rtbwarns
;
611 * If the user is now over quota, start the timelimit.
612 * The user will not be 'warned'.
613 * Note that we keep the timers ticking, whether enforcement
614 * is on or off. We don't really want to bother with iterating
615 * over all ondisk dquots and turning the timers on/off.
617 xfs_qm_adjust_dqtimers(mp
, ddq
);
619 dqp
->dq_flags
|= XFS_DQ_DIRTY
;
620 xfs_trans_log_dquot(tp
, dqp
);
622 error
= xfs_trans_commit(tp
, 0);
626 mutex_unlock(&q
->qi_quotaofflock
);
631 xfs_qm_log_quotaoff_end(
633 xfs_qoff_logitem_t
*startqoff
,
638 xfs_qoff_logitem_t
*qoffi
;
640 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF_END
);
642 error
= xfs_trans_reserve(tp
, 0, XFS_QM_QUOTAOFF_END_LOG_RES(mp
),
643 0, 0, XFS_DEFAULT_LOG_COUNT
);
645 xfs_trans_cancel(tp
, 0);
649 qoffi
= xfs_trans_get_qoff_item(tp
, startqoff
,
650 flags
& XFS_ALL_QUOTA_ACCT
);
651 xfs_trans_log_quotaoff_item(tp
, qoffi
);
654 * We have to make sure that the transaction is secure on disk before we
655 * return and actually stop quota accounting. So, make it synchronous.
656 * We don't care about quotoff's performance.
658 xfs_trans_set_sync(tp
);
659 error
= xfs_trans_commit(tp
, 0);
667 xfs_qoff_logitem_t
**qoffstartp
,
672 xfs_qoff_logitem_t
*qoffi
=NULL
;
675 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF
);
676 error
= xfs_trans_reserve(tp
, 0, XFS_QM_QUOTAOFF_LOG_RES(mp
),
677 0, 0, XFS_DEFAULT_LOG_COUNT
);
681 qoffi
= xfs_trans_get_qoff_item(tp
, NULL
, flags
& XFS_ALL_QUOTA_ACCT
);
682 xfs_trans_log_quotaoff_item(tp
, qoffi
);
684 spin_lock(&mp
->m_sb_lock
);
685 oldsbqflag
= mp
->m_sb
.sb_qflags
;
686 mp
->m_sb
.sb_qflags
= (mp
->m_qflags
& ~(flags
)) & XFS_MOUNT_QUOTA_ALL
;
687 spin_unlock(&mp
->m_sb_lock
);
689 xfs_mod_sb(tp
, XFS_SB_QFLAGS
);
692 * We have to make sure that the transaction is secure on disk before we
693 * return and actually stop quota accounting. So, make it synchronous.
694 * We don't care about quotoff's performance.
696 xfs_trans_set_sync(tp
);
697 error
= xfs_trans_commit(tp
, 0);
701 xfs_trans_cancel(tp
, 0);
703 * No one else is modifying sb_qflags, so this is OK.
704 * We still hold the quotaofflock.
706 spin_lock(&mp
->m_sb_lock
);
707 mp
->m_sb
.sb_qflags
= oldsbqflag
;
708 spin_unlock(&mp
->m_sb_lock
);
716 xfs_qm_scall_getquota(
717 struct xfs_mount
*mp
,
720 struct fs_disk_quota
*dst
)
722 struct xfs_dquot
*dqp
;
726 * Try to get the dquot. We don't want it allocated on disk, so
727 * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't
728 * exist, we'll get ENOENT back.
730 error
= xfs_qm_dqget(mp
, NULL
, id
, type
, 0, &dqp
);
735 * If everything's NULL, this dquot doesn't quite exist as far as
736 * our utility programs are concerned.
738 if (XFS_IS_DQUOT_UNINITIALIZED(dqp
)) {
739 error
= XFS_ERROR(ENOENT
);
743 memset(dst
, 0, sizeof(*dst
));
744 dst
->d_version
= FS_DQUOT_VERSION
;
745 dst
->d_flags
= xfs_qm_export_qtype_flags(dqp
->q_core
.d_flags
);
746 dst
->d_id
= be32_to_cpu(dqp
->q_core
.d_id
);
747 dst
->d_blk_hardlimit
=
748 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_blk_hardlimit
));
749 dst
->d_blk_softlimit
=
750 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_blk_softlimit
));
751 dst
->d_ino_hardlimit
= be64_to_cpu(dqp
->q_core
.d_ino_hardlimit
);
752 dst
->d_ino_softlimit
= be64_to_cpu(dqp
->q_core
.d_ino_softlimit
);
753 dst
->d_bcount
= XFS_FSB_TO_BB(mp
, dqp
->q_res_bcount
);
754 dst
->d_icount
= dqp
->q_res_icount
;
755 dst
->d_btimer
= be32_to_cpu(dqp
->q_core
.d_btimer
);
756 dst
->d_itimer
= be32_to_cpu(dqp
->q_core
.d_itimer
);
757 dst
->d_iwarns
= be16_to_cpu(dqp
->q_core
.d_iwarns
);
758 dst
->d_bwarns
= be16_to_cpu(dqp
->q_core
.d_bwarns
);
759 dst
->d_rtb_hardlimit
=
760 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_rtb_hardlimit
));
761 dst
->d_rtb_softlimit
=
762 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_rtb_softlimit
));
763 dst
->d_rtbcount
= XFS_FSB_TO_BB(mp
, dqp
->q_res_rtbcount
);
764 dst
->d_rtbtimer
= be32_to_cpu(dqp
->q_core
.d_rtbtimer
);
765 dst
->d_rtbwarns
= be16_to_cpu(dqp
->q_core
.d_rtbwarns
);
768 * Internally, we don't reset all the timers when quota enforcement
769 * gets turned off. No need to confuse the user level code,
770 * so return zeroes in that case.
772 if ((!XFS_IS_UQUOTA_ENFORCED(mp
) && dqp
->q_core
.d_flags
== XFS_DQ_USER
) ||
773 (!XFS_IS_OQUOTA_ENFORCED(mp
) &&
774 (dqp
->q_core
.d_flags
& (XFS_DQ_PROJ
| XFS_DQ_GROUP
)))) {
781 if (((XFS_IS_UQUOTA_ENFORCED(mp
) && dst
->d_flags
== FS_USER_QUOTA
) ||
782 (XFS_IS_OQUOTA_ENFORCED(mp
) &&
783 (dst
->d_flags
& (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
)))) &&
785 if ((dst
->d_bcount
> dst
->d_blk_softlimit
) &&
786 (dst
->d_blk_softlimit
> 0)) {
787 ASSERT(dst
->d_btimer
!= 0);
789 if ((dst
->d_icount
> dst
->d_ino_softlimit
) &&
790 (dst
->d_ino_softlimit
> 0)) {
791 ASSERT(dst
->d_itimer
!= 0);
801 xfs_qm_export_qtype_flags(
805 * Can't be more than one, or none.
807 ASSERT((flags
& (FS_PROJ_QUOTA
| FS_USER_QUOTA
)) !=
808 (FS_PROJ_QUOTA
| FS_USER_QUOTA
));
809 ASSERT((flags
& (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
)) !=
810 (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
));
811 ASSERT((flags
& (FS_USER_QUOTA
| FS_GROUP_QUOTA
)) !=
812 (FS_USER_QUOTA
| FS_GROUP_QUOTA
));
813 ASSERT((flags
& (FS_PROJ_QUOTA
|FS_USER_QUOTA
|FS_GROUP_QUOTA
)) != 0);
815 return (flags
& XFS_DQ_USER
) ?
816 FS_USER_QUOTA
: (flags
& XFS_DQ_PROJ
) ?
817 FS_PROJ_QUOTA
: FS_GROUP_QUOTA
;
827 if (flags
& XFS_UQUOTA_ACCT
)
828 uflags
|= FS_QUOTA_UDQ_ACCT
;
829 if (flags
& XFS_PQUOTA_ACCT
)
830 uflags
|= FS_QUOTA_PDQ_ACCT
;
831 if (flags
& XFS_GQUOTA_ACCT
)
832 uflags
|= FS_QUOTA_GDQ_ACCT
;
833 if (flags
& XFS_UQUOTA_ENFD
)
834 uflags
|= FS_QUOTA_UDQ_ENFD
;
835 if (flags
& (XFS_OQUOTA_ENFD
)) {
836 uflags
|= (flags
& XFS_GQUOTA_ACCT
) ?
837 FS_QUOTA_GDQ_ENFD
: FS_QUOTA_PDQ_ENFD
;
845 struct xfs_inode
*ip
,
846 struct xfs_perag
*pag
,
850 /* skip quota inodes */
851 if (ip
== ip
->i_mount
->m_quotainfo
->qi_uquotaip
||
852 ip
== ip
->i_mount
->m_quotainfo
->qi_gquotaip
) {
853 ASSERT(ip
->i_udquot
== NULL
);
854 ASSERT(ip
->i_gdquot
== NULL
);
858 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
859 if ((flags
& XFS_UQUOTA_ACCT
) && ip
->i_udquot
) {
860 xfs_qm_dqrele(ip
->i_udquot
);
863 if (flags
& (XFS_PQUOTA_ACCT
|XFS_GQUOTA_ACCT
) && ip
->i_gdquot
) {
864 xfs_qm_dqrele(ip
->i_gdquot
);
867 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
873 * Go thru all the inodes in the file system, releasing their dquots.
875 * Note that the mount structure gets modified to indicate that quotas are off
876 * AFTER this, in the case of quotaoff.
879 xfs_qm_dqrele_all_inodes(
880 struct xfs_mount
*mp
,
883 ASSERT(mp
->m_quotainfo
);
884 xfs_inode_ag_iterator(mp
, xfs_dqrele_inode
, flags
, NULL
);