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(
475 struct xfs_mount
*mp
,
478 fs_disk_quota_t
*newlim
)
480 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
481 struct xfs_disk_dquot
*ddq
;
482 struct xfs_dquot
*dqp
;
483 struct xfs_trans
*tp
;
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
);
532 xfs_dquot_set_prealloc_limits(dqp
);
534 q
->qi_bhardlimit
= hard
;
535 q
->qi_bsoftlimit
= soft
;
538 xfs_debug(mp
, "blkhard %Ld < blksoft %Ld\n", hard
, soft
);
540 hard
= (newlim
->d_fieldmask
& FS_DQ_RTBHARD
) ?
541 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_hardlimit
) :
542 be64_to_cpu(ddq
->d_rtb_hardlimit
);
543 soft
= (newlim
->d_fieldmask
& FS_DQ_RTBSOFT
) ?
544 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_softlimit
) :
545 be64_to_cpu(ddq
->d_rtb_softlimit
);
546 if (hard
== 0 || hard
>= soft
) {
547 ddq
->d_rtb_hardlimit
= cpu_to_be64(hard
);
548 ddq
->d_rtb_softlimit
= cpu_to_be64(soft
);
550 q
->qi_rtbhardlimit
= hard
;
551 q
->qi_rtbsoftlimit
= soft
;
554 xfs_debug(mp
, "rtbhard %Ld < rtbsoft %Ld\n", hard
, soft
);
557 hard
= (newlim
->d_fieldmask
& FS_DQ_IHARD
) ?
558 (xfs_qcnt_t
) newlim
->d_ino_hardlimit
:
559 be64_to_cpu(ddq
->d_ino_hardlimit
);
560 soft
= (newlim
->d_fieldmask
& FS_DQ_ISOFT
) ?
561 (xfs_qcnt_t
) newlim
->d_ino_softlimit
:
562 be64_to_cpu(ddq
->d_ino_softlimit
);
563 if (hard
== 0 || hard
>= soft
) {
564 ddq
->d_ino_hardlimit
= cpu_to_be64(hard
);
565 ddq
->d_ino_softlimit
= cpu_to_be64(soft
);
567 q
->qi_ihardlimit
= hard
;
568 q
->qi_isoftlimit
= soft
;
571 xfs_debug(mp
, "ihard %Ld < isoft %Ld\n", hard
, soft
);
575 * Update warnings counter(s) if requested
577 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
578 ddq
->d_bwarns
= cpu_to_be16(newlim
->d_bwarns
);
579 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
580 ddq
->d_iwarns
= cpu_to_be16(newlim
->d_iwarns
);
581 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
582 ddq
->d_rtbwarns
= cpu_to_be16(newlim
->d_rtbwarns
);
586 * Timelimits for the super user set the relative time
587 * the other users can be over quota for this file system.
588 * If it is zero a default is used. Ditto for the default
589 * soft and hard limit values (already done, above), and
592 if (newlim
->d_fieldmask
& FS_DQ_BTIMER
) {
593 q
->qi_btimelimit
= newlim
->d_btimer
;
594 ddq
->d_btimer
= cpu_to_be32(newlim
->d_btimer
);
596 if (newlim
->d_fieldmask
& FS_DQ_ITIMER
) {
597 q
->qi_itimelimit
= newlim
->d_itimer
;
598 ddq
->d_itimer
= cpu_to_be32(newlim
->d_itimer
);
600 if (newlim
->d_fieldmask
& FS_DQ_RTBTIMER
) {
601 q
->qi_rtbtimelimit
= newlim
->d_rtbtimer
;
602 ddq
->d_rtbtimer
= cpu_to_be32(newlim
->d_rtbtimer
);
604 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
605 q
->qi_bwarnlimit
= newlim
->d_bwarns
;
606 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
607 q
->qi_iwarnlimit
= newlim
->d_iwarns
;
608 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
609 q
->qi_rtbwarnlimit
= newlim
->d_rtbwarns
;
612 * If the user is now over quota, start the timelimit.
613 * The user will not be 'warned'.
614 * Note that we keep the timers ticking, whether enforcement
615 * is on or off. We don't really want to bother with iterating
616 * over all ondisk dquots and turning the timers on/off.
618 xfs_qm_adjust_dqtimers(mp
, ddq
);
620 dqp
->dq_flags
|= XFS_DQ_DIRTY
;
621 xfs_trans_log_dquot(tp
, dqp
);
623 error
= xfs_trans_commit(tp
, 0);
627 mutex_unlock(&q
->qi_quotaofflock
);
632 xfs_qm_log_quotaoff_end(
634 xfs_qoff_logitem_t
*startqoff
,
639 xfs_qoff_logitem_t
*qoffi
;
641 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF_END
);
643 error
= xfs_trans_reserve(tp
, 0, XFS_QM_QUOTAOFF_END_LOG_RES(mp
),
644 0, 0, XFS_DEFAULT_LOG_COUNT
);
646 xfs_trans_cancel(tp
, 0);
650 qoffi
= xfs_trans_get_qoff_item(tp
, startqoff
,
651 flags
& XFS_ALL_QUOTA_ACCT
);
652 xfs_trans_log_quotaoff_item(tp
, qoffi
);
655 * We have to make sure that the transaction is secure on disk before we
656 * return and actually stop quota accounting. So, make it synchronous.
657 * We don't care about quotoff's performance.
659 xfs_trans_set_sync(tp
);
660 error
= xfs_trans_commit(tp
, 0);
668 xfs_qoff_logitem_t
**qoffstartp
,
673 xfs_qoff_logitem_t
*qoffi
=NULL
;
676 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF
);
677 error
= xfs_trans_reserve(tp
, 0, XFS_QM_QUOTAOFF_LOG_RES(mp
),
678 0, 0, XFS_DEFAULT_LOG_COUNT
);
682 qoffi
= xfs_trans_get_qoff_item(tp
, NULL
, flags
& XFS_ALL_QUOTA_ACCT
);
683 xfs_trans_log_quotaoff_item(tp
, qoffi
);
685 spin_lock(&mp
->m_sb_lock
);
686 oldsbqflag
= mp
->m_sb
.sb_qflags
;
687 mp
->m_sb
.sb_qflags
= (mp
->m_qflags
& ~(flags
)) & XFS_MOUNT_QUOTA_ALL
;
688 spin_unlock(&mp
->m_sb_lock
);
690 xfs_mod_sb(tp
, XFS_SB_QFLAGS
);
693 * We have to make sure that the transaction is secure on disk before we
694 * return and actually stop quota accounting. So, make it synchronous.
695 * We don't care about quotoff's performance.
697 xfs_trans_set_sync(tp
);
698 error
= xfs_trans_commit(tp
, 0);
702 xfs_trans_cancel(tp
, 0);
704 * No one else is modifying sb_qflags, so this is OK.
705 * We still hold the quotaofflock.
707 spin_lock(&mp
->m_sb_lock
);
708 mp
->m_sb
.sb_qflags
= oldsbqflag
;
709 spin_unlock(&mp
->m_sb_lock
);
717 xfs_qm_scall_getquota(
718 struct xfs_mount
*mp
,
721 struct fs_disk_quota
*dst
)
723 struct xfs_dquot
*dqp
;
727 * Try to get the dquot. We don't want it allocated on disk, so
728 * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't
729 * exist, we'll get ENOENT back.
731 error
= xfs_qm_dqget(mp
, NULL
, id
, type
, 0, &dqp
);
736 * If everything's NULL, this dquot doesn't quite exist as far as
737 * our utility programs are concerned.
739 if (XFS_IS_DQUOT_UNINITIALIZED(dqp
)) {
740 error
= XFS_ERROR(ENOENT
);
744 memset(dst
, 0, sizeof(*dst
));
745 dst
->d_version
= FS_DQUOT_VERSION
;
746 dst
->d_flags
= xfs_qm_export_qtype_flags(dqp
->q_core
.d_flags
);
747 dst
->d_id
= be32_to_cpu(dqp
->q_core
.d_id
);
748 dst
->d_blk_hardlimit
=
749 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_blk_hardlimit
));
750 dst
->d_blk_softlimit
=
751 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_blk_softlimit
));
752 dst
->d_ino_hardlimit
= be64_to_cpu(dqp
->q_core
.d_ino_hardlimit
);
753 dst
->d_ino_softlimit
= be64_to_cpu(dqp
->q_core
.d_ino_softlimit
);
754 dst
->d_bcount
= XFS_FSB_TO_BB(mp
, dqp
->q_res_bcount
);
755 dst
->d_icount
= dqp
->q_res_icount
;
756 dst
->d_btimer
= be32_to_cpu(dqp
->q_core
.d_btimer
);
757 dst
->d_itimer
= be32_to_cpu(dqp
->q_core
.d_itimer
);
758 dst
->d_iwarns
= be16_to_cpu(dqp
->q_core
.d_iwarns
);
759 dst
->d_bwarns
= be16_to_cpu(dqp
->q_core
.d_bwarns
);
760 dst
->d_rtb_hardlimit
=
761 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_rtb_hardlimit
));
762 dst
->d_rtb_softlimit
=
763 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_rtb_softlimit
));
764 dst
->d_rtbcount
= XFS_FSB_TO_BB(mp
, dqp
->q_res_rtbcount
);
765 dst
->d_rtbtimer
= be32_to_cpu(dqp
->q_core
.d_rtbtimer
);
766 dst
->d_rtbwarns
= be16_to_cpu(dqp
->q_core
.d_rtbwarns
);
769 * Internally, we don't reset all the timers when quota enforcement
770 * gets turned off. No need to confuse the user level code,
771 * so return zeroes in that case.
773 if ((!XFS_IS_UQUOTA_ENFORCED(mp
) && dqp
->q_core
.d_flags
== XFS_DQ_USER
) ||
774 (!XFS_IS_OQUOTA_ENFORCED(mp
) &&
775 (dqp
->q_core
.d_flags
& (XFS_DQ_PROJ
| XFS_DQ_GROUP
)))) {
782 if (((XFS_IS_UQUOTA_ENFORCED(mp
) && dst
->d_flags
== FS_USER_QUOTA
) ||
783 (XFS_IS_OQUOTA_ENFORCED(mp
) &&
784 (dst
->d_flags
& (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
)))) &&
786 if ((dst
->d_bcount
> dst
->d_blk_softlimit
) &&
787 (dst
->d_blk_softlimit
> 0)) {
788 ASSERT(dst
->d_btimer
!= 0);
790 if ((dst
->d_icount
> dst
->d_ino_softlimit
) &&
791 (dst
->d_ino_softlimit
> 0)) {
792 ASSERT(dst
->d_itimer
!= 0);
802 xfs_qm_export_qtype_flags(
806 * Can't be more than one, or none.
808 ASSERT((flags
& (FS_PROJ_QUOTA
| FS_USER_QUOTA
)) !=
809 (FS_PROJ_QUOTA
| FS_USER_QUOTA
));
810 ASSERT((flags
& (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
)) !=
811 (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
));
812 ASSERT((flags
& (FS_USER_QUOTA
| FS_GROUP_QUOTA
)) !=
813 (FS_USER_QUOTA
| FS_GROUP_QUOTA
));
814 ASSERT((flags
& (FS_PROJ_QUOTA
|FS_USER_QUOTA
|FS_GROUP_QUOTA
)) != 0);
816 return (flags
& XFS_DQ_USER
) ?
817 FS_USER_QUOTA
: (flags
& XFS_DQ_PROJ
) ?
818 FS_PROJ_QUOTA
: FS_GROUP_QUOTA
;
828 if (flags
& XFS_UQUOTA_ACCT
)
829 uflags
|= FS_QUOTA_UDQ_ACCT
;
830 if (flags
& XFS_PQUOTA_ACCT
)
831 uflags
|= FS_QUOTA_PDQ_ACCT
;
832 if (flags
& XFS_GQUOTA_ACCT
)
833 uflags
|= FS_QUOTA_GDQ_ACCT
;
834 if (flags
& XFS_UQUOTA_ENFD
)
835 uflags
|= FS_QUOTA_UDQ_ENFD
;
836 if (flags
& (XFS_OQUOTA_ENFD
)) {
837 uflags
|= (flags
& XFS_GQUOTA_ACCT
) ?
838 FS_QUOTA_GDQ_ENFD
: FS_QUOTA_PDQ_ENFD
;
846 struct xfs_inode
*ip
,
847 struct xfs_perag
*pag
,
851 /* skip quota inodes */
852 if (ip
== ip
->i_mount
->m_quotainfo
->qi_uquotaip
||
853 ip
== ip
->i_mount
->m_quotainfo
->qi_gquotaip
) {
854 ASSERT(ip
->i_udquot
== NULL
);
855 ASSERT(ip
->i_gdquot
== NULL
);
859 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
860 if ((flags
& XFS_UQUOTA_ACCT
) && ip
->i_udquot
) {
861 xfs_qm_dqrele(ip
->i_udquot
);
864 if (flags
& (XFS_PQUOTA_ACCT
|XFS_GQUOTA_ACCT
) && ip
->i_gdquot
) {
865 xfs_qm_dqrele(ip
->i_gdquot
);
868 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
874 * Go thru all the inodes in the file system, releasing their dquots.
876 * Note that the mount structure gets modified to indicate that quotas are off
877 * AFTER this, in the case of quotaoff.
880 xfs_qm_dqrele_all_inodes(
881 struct xfs_mount
*mp
,
884 ASSERT(mp
->m_quotainfo
);
885 xfs_inode_ag_iterator(mp
, xfs_dqrele_inode
, flags
, NULL
);