2 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 #include <linux/capability.h>
23 #include "xfs_shared.h"
24 #include "xfs_format.h"
25 #include "xfs_log_format.h"
26 #include "xfs_trans_resv.h"
30 #include "xfs_alloc.h"
31 #include "xfs_quota.h"
32 #include "xfs_mount.h"
33 #include "xfs_bmap_btree.h"
34 #include "xfs_inode.h"
35 #include "xfs_trans.h"
36 #include "xfs_inode_item.h"
37 #include "xfs_itable.h"
39 #include "xfs_rtalloc.h"
40 #include "xfs_error.h"
42 #include "xfs_buf_item.h"
44 #include "xfs_trace.h"
45 #include "xfs_icache.h"
47 STATIC
int xfs_qm_log_quotaoff(xfs_mount_t
*, xfs_qoff_logitem_t
**, uint
);
48 STATIC
int xfs_qm_log_quotaoff_end(xfs_mount_t
*, xfs_qoff_logitem_t
*,
50 STATIC uint
xfs_qm_export_flags(uint
);
51 STATIC uint
xfs_qm_export_qtype_flags(uint
);
54 * Turn off quota accounting and/or enforcement for all udquots and/or
55 * gdquots. Called only at unmount time.
57 * This assumes that there are no dquots of this file system cached
58 * incore, and modifies the ondisk dquot directly. Therefore, for example,
59 * it is an error to call this twice, without purging the cache.
62 xfs_qm_scall_quotaoff(
66 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
69 uint inactivate_flags
;
70 xfs_qoff_logitem_t
*qoffstart
;
73 * No file system can have quotas enabled on disk but not in core.
74 * Note that quota utilities (like quotaoff) _expect_
75 * errno == EEXIST here.
77 if ((mp
->m_qflags
& flags
) == 0)
78 return XFS_ERROR(EEXIST
);
81 flags
&= (XFS_ALL_QUOTA_ACCT
| XFS_ALL_QUOTA_ENFD
);
84 * We don't want to deal with two quotaoffs messing up each other,
85 * so we're going to serialize it. quotaoff isn't exactly a performance
87 * If quotaoff, then we must be dealing with the root filesystem.
90 mutex_lock(&q
->qi_quotaofflock
);
93 * If we're just turning off quota enforcement, change mp and go.
95 if ((flags
& XFS_ALL_QUOTA_ACCT
) == 0) {
96 mp
->m_qflags
&= ~(flags
);
98 spin_lock(&mp
->m_sb_lock
);
99 mp
->m_sb
.sb_qflags
= mp
->m_qflags
;
100 spin_unlock(&mp
->m_sb_lock
);
101 mutex_unlock(&q
->qi_quotaofflock
);
103 /* XXX what to do if error ? Revert back to old vals incore ? */
104 error
= xfs_qm_write_sb_changes(mp
, XFS_SB_QFLAGS
);
109 inactivate_flags
= 0;
111 * If accounting is off, we must turn enforcement off, clear the
112 * quota 'CHKD' certificate to make it known that we have to
113 * do a quotacheck the next time this quota is turned on.
115 if (flags
& XFS_UQUOTA_ACCT
) {
116 dqtype
|= XFS_QMOPT_UQUOTA
;
117 flags
|= (XFS_UQUOTA_CHKD
| XFS_UQUOTA_ENFD
);
118 inactivate_flags
|= XFS_UQUOTA_ACTIVE
;
120 if (flags
& XFS_GQUOTA_ACCT
) {
121 dqtype
|= XFS_QMOPT_GQUOTA
;
122 flags
|= (XFS_GQUOTA_CHKD
| XFS_GQUOTA_ENFD
);
123 inactivate_flags
|= XFS_GQUOTA_ACTIVE
;
125 if (flags
& XFS_PQUOTA_ACCT
) {
126 dqtype
|= XFS_QMOPT_PQUOTA
;
127 flags
|= (XFS_PQUOTA_CHKD
| XFS_PQUOTA_ENFD
);
128 inactivate_flags
|= XFS_PQUOTA_ACTIVE
;
132 * Nothing to do? Don't complain. This happens when we're just
133 * turning off quota enforcement.
135 if ((mp
->m_qflags
& flags
) == 0)
139 * Write the LI_QUOTAOFF log record, and do SB changes atomically,
140 * and synchronously. If we fail to write, we should abort the
141 * operation as it cannot be recovered safely if we crash.
143 error
= xfs_qm_log_quotaoff(mp
, &qoffstart
, flags
);
148 * Next we clear the XFS_MOUNT_*DQ_ACTIVE bit(s) in the mount struct
149 * to take care of the race between dqget and quotaoff. We don't take
150 * any special locks to reset these bits. All processes need to check
151 * these bits *after* taking inode lock(s) to see if the particular
152 * quota type is in the process of being turned off. If *ACTIVE, it is
153 * guaranteed that all dquot structures and all quotainode ptrs will all
154 * stay valid as long as that inode is kept locked.
156 * There is no turning back after this.
158 mp
->m_qflags
&= ~inactivate_flags
;
161 * Give back all the dquot reference(s) held by inodes.
162 * Here we go thru every single incore inode in this file system, and
163 * do a dqrele on the i_udquot/i_gdquot that it may have.
164 * Essentially, as long as somebody has an inode locked, this guarantees
165 * that quotas will not be turned off. This is handy because in a
166 * transaction once we lock the inode(s) and check for quotaon, we can
167 * depend on the quota inodes (and other things) being valid as long as
168 * we keep the lock(s).
170 xfs_qm_dqrele_all_inodes(mp
, flags
);
173 * Next we make the changes in the quota flag in the mount struct.
174 * This isn't protected by a particular lock directly, because we
175 * don't want to take a mrlock every time we depend on quotas being on.
177 mp
->m_qflags
&= ~flags
;
180 * Go through all the dquots of this file system and purge them,
181 * according to what was turned off.
183 xfs_qm_dqpurge_all(mp
, dqtype
);
186 * Transactions that had started before ACTIVE state bit was cleared
187 * could have logged many dquots, so they'd have higher LSNs than
188 * the first QUOTAOFF log record does. If we happen to crash when
189 * the tail of the log has gone past the QUOTAOFF record, but
190 * before the last dquot modification, those dquots __will__
191 * recover, and that's not good.
193 * So, we have QUOTAOFF start and end logitems; the start
194 * logitem won't get overwritten until the end logitem appears...
196 error
= xfs_qm_log_quotaoff_end(mp
, qoffstart
, flags
);
198 /* We're screwed now. Shutdown is the only option. */
199 xfs_force_shutdown(mp
, SHUTDOWN_CORRUPT_INCORE
);
204 * If all quotas are completely turned off, close shop.
206 if (mp
->m_qflags
== 0) {
207 mutex_unlock(&q
->qi_quotaofflock
);
208 xfs_qm_destroy_quotainfo(mp
);
213 * Release our quotainode references if we don't need them anymore.
215 if ((dqtype
& XFS_QMOPT_UQUOTA
) && q
->qi_uquotaip
) {
216 IRELE(q
->qi_uquotaip
);
217 q
->qi_uquotaip
= NULL
;
219 if ((dqtype
& XFS_QMOPT_GQUOTA
) && q
->qi_gquotaip
) {
220 IRELE(q
->qi_gquotaip
);
221 q
->qi_gquotaip
= NULL
;
223 if ((dqtype
& XFS_QMOPT_PQUOTA
) && q
->qi_pquotaip
) {
224 IRELE(q
->qi_pquotaip
);
225 q
->qi_pquotaip
= 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
, &M_RES(mp
)->tr_itruncate
, 0, 0);
254 xfs_trans_cancel(tp
, 0);
255 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
259 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
260 xfs_trans_ijoin(tp
, ip
, 0);
263 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
265 error
= xfs_itruncate_extents(&tp
, ip
, XFS_DATA_FORK
, 0);
267 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
|
272 ASSERT(ip
->i_d
.di_nextents
== 0);
274 xfs_trans_ichgtime(tp
, ip
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
275 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
);
278 xfs_iunlock(ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
285 xfs_qm_scall_trunc_qfiles(
289 int error
= 0, error2
= 0;
291 if (!xfs_sb_version_hasquota(&mp
->m_sb
) || flags
== 0) {
292 xfs_debug(mp
, "%s: flags=%x m_qflags=%x",
293 __func__
, flags
, mp
->m_qflags
);
294 return XFS_ERROR(EINVAL
);
297 if (flags
& XFS_DQ_USER
)
298 error
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_uquotino
);
299 if (flags
& XFS_DQ_GROUP
)
300 error2
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_gquotino
);
301 if (flags
& XFS_DQ_PROJ
)
302 error2
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_pquotino
);
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",
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
)) ||
346 ((flags
& XFS_GQUOTA_ACCT
) == 0 &&
347 (mp
->m_sb
.sb_qflags
& XFS_GQUOTA_ACCT
) == 0 &&
348 (flags
& XFS_GQUOTA_ENFD
)) ||
349 ((flags
& XFS_PQUOTA_ACCT
) == 0 &&
350 (mp
->m_sb
.sb_qflags
& XFS_PQUOTA_ACCT
) == 0 &&
351 (flags
& XFS_PQUOTA_ENFD
))) {
353 "%s: Can't enforce without acct, flags=%x sbflags=%x",
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.
409 * for Q_XGETQSTAT command.
412 xfs_qm_scall_getqstat(
413 struct xfs_mount
*mp
,
414 struct fs_quota_stat
*out
)
416 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
417 struct xfs_inode
*uip
= NULL
;
418 struct xfs_inode
*gip
= NULL
;
419 struct xfs_inode
*pip
= NULL
;
420 bool tempuqip
= false;
421 bool tempgqip
= false;
422 bool temppqip
= false;
424 memset(out
, 0, sizeof(fs_quota_stat_t
));
426 out
->qs_version
= FS_QSTAT_VERSION
;
427 if (!xfs_sb_version_hasquota(&mp
->m_sb
)) {
428 out
->qs_uquota
.qfs_ino
= NULLFSINO
;
429 out
->qs_gquota
.qfs_ino
= NULLFSINO
;
433 out
->qs_flags
= (__uint16_t
) xfs_qm_export_flags(mp
->m_qflags
&
435 XFS_ALL_QUOTA_ENFD
));
437 uip
= q
->qi_uquotaip
;
438 gip
= q
->qi_gquotaip
;
439 pip
= q
->qi_pquotaip
;
441 if (!uip
&& mp
->m_sb
.sb_uquotino
!= NULLFSINO
) {
442 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_uquotino
,
446 if (!gip
&& mp
->m_sb
.sb_gquotino
!= NULLFSINO
) {
447 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_gquotino
,
452 * Q_XGETQSTAT doesn't have room for both group and project quotas.
453 * So, allow the project quota values to be copied out only if
454 * there is no group quota information available.
457 if (!pip
&& mp
->m_sb
.sb_pquotino
!= NULLFSINO
) {
458 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_pquotino
,
465 out
->qs_uquota
.qfs_ino
= mp
->m_sb
.sb_uquotino
;
466 out
->qs_uquota
.qfs_nblks
= uip
->i_d
.di_nblocks
;
467 out
->qs_uquota
.qfs_nextents
= uip
->i_d
.di_nextents
;
473 out
->qs_gquota
.qfs_ino
= mp
->m_sb
.sb_gquotino
;
474 out
->qs_gquota
.qfs_nblks
= gip
->i_d
.di_nblocks
;
475 out
->qs_gquota
.qfs_nextents
= gip
->i_d
.di_nextents
;
480 out
->qs_gquota
.qfs_ino
= mp
->m_sb
.sb_gquotino
;
481 out
->qs_gquota
.qfs_nblks
= pip
->i_d
.di_nblocks
;
482 out
->qs_gquota
.qfs_nextents
= pip
->i_d
.di_nextents
;
487 out
->qs_incoredqs
= q
->qi_dquots
;
488 out
->qs_btimelimit
= q
->qi_btimelimit
;
489 out
->qs_itimelimit
= q
->qi_itimelimit
;
490 out
->qs_rtbtimelimit
= q
->qi_rtbtimelimit
;
491 out
->qs_bwarnlimit
= q
->qi_bwarnlimit
;
492 out
->qs_iwarnlimit
= q
->qi_iwarnlimit
;
498 * Return quota status information, such as uquota-off, enforcements, etc.
499 * for Q_XGETQSTATV command, to support separate project quota field.
502 xfs_qm_scall_getqstatv(
503 struct xfs_mount
*mp
,
504 struct fs_quota_statv
*out
)
506 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
507 struct xfs_inode
*uip
= NULL
;
508 struct xfs_inode
*gip
= NULL
;
509 struct xfs_inode
*pip
= NULL
;
510 bool tempuqip
= false;
511 bool tempgqip
= false;
512 bool temppqip
= false;
514 if (!xfs_sb_version_hasquota(&mp
->m_sb
)) {
515 out
->qs_uquota
.qfs_ino
= NULLFSINO
;
516 out
->qs_gquota
.qfs_ino
= NULLFSINO
;
517 out
->qs_pquota
.qfs_ino
= NULLFSINO
;
521 out
->qs_flags
= (__uint16_t
) xfs_qm_export_flags(mp
->m_qflags
&
523 XFS_ALL_QUOTA_ENFD
));
524 out
->qs_uquota
.qfs_ino
= mp
->m_sb
.sb_uquotino
;
525 out
->qs_gquota
.qfs_ino
= mp
->m_sb
.sb_gquotino
;
526 out
->qs_pquota
.qfs_ino
= mp
->m_sb
.sb_pquotino
;
529 uip
= q
->qi_uquotaip
;
530 gip
= q
->qi_gquotaip
;
531 pip
= q
->qi_pquotaip
;
533 if (!uip
&& mp
->m_sb
.sb_uquotino
!= NULLFSINO
) {
534 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_uquotino
,
538 if (!gip
&& mp
->m_sb
.sb_gquotino
!= NULLFSINO
) {
539 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_gquotino
,
543 if (!pip
&& mp
->m_sb
.sb_pquotino
!= NULLFSINO
) {
544 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_pquotino
,
549 out
->qs_uquota
.qfs_nblks
= uip
->i_d
.di_nblocks
;
550 out
->qs_uquota
.qfs_nextents
= uip
->i_d
.di_nextents
;
556 out
->qs_gquota
.qfs_nblks
= gip
->i_d
.di_nblocks
;
557 out
->qs_gquota
.qfs_nextents
= gip
->i_d
.di_nextents
;
562 out
->qs_pquota
.qfs_nblks
= pip
->i_d
.di_nblocks
;
563 out
->qs_pquota
.qfs_nextents
= pip
->i_d
.di_nextents
;
568 out
->qs_incoredqs
= q
->qi_dquots
;
569 out
->qs_btimelimit
= q
->qi_btimelimit
;
570 out
->qs_itimelimit
= q
->qi_itimelimit
;
571 out
->qs_rtbtimelimit
= q
->qi_rtbtimelimit
;
572 out
->qs_bwarnlimit
= q
->qi_bwarnlimit
;
573 out
->qs_iwarnlimit
= q
->qi_iwarnlimit
;
578 #define XFS_DQ_MASK \
579 (FS_DQ_LIMIT_MASK | FS_DQ_TIMER_MASK | FS_DQ_WARNS_MASK)
582 * Adjust quota limits, and start/stop timers accordingly.
585 xfs_qm_scall_setqlim(
586 struct xfs_mount
*mp
,
589 fs_disk_quota_t
*newlim
)
591 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
592 struct xfs_disk_dquot
*ddq
;
593 struct xfs_dquot
*dqp
;
594 struct xfs_trans
*tp
;
596 xfs_qcnt_t hard
, soft
;
598 if (newlim
->d_fieldmask
& ~XFS_DQ_MASK
)
600 if ((newlim
->d_fieldmask
& XFS_DQ_MASK
) == 0)
604 * We don't want to race with a quotaoff so take the quotaoff lock.
605 * We don't hold an inode lock, so there's nothing else to stop
606 * a quotaoff from happening.
608 mutex_lock(&q
->qi_quotaofflock
);
611 * Get the dquot (locked) before we start, as we need to do a
612 * transaction to allocate it if it doesn't exist. Once we have the
613 * dquot, unlock it so we can start the next transaction safely. We hold
614 * a reference to the dquot, so it's safe to do this unlock/lock without
615 * it being reclaimed in the mean time.
617 error
= xfs_qm_dqget(mp
, NULL
, id
, type
, XFS_QMOPT_DQALLOC
, &dqp
);
619 ASSERT(error
!= ENOENT
);
624 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_SETQLIM
);
625 error
= xfs_trans_reserve(tp
, &M_RES(mp
)->tr_qm_setqlim
, 0, 0);
627 xfs_trans_cancel(tp
, 0);
632 xfs_trans_dqjoin(tp
, dqp
);
636 * Make sure that hardlimits are >= soft limits before changing.
638 hard
= (newlim
->d_fieldmask
& FS_DQ_BHARD
) ?
639 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_blk_hardlimit
) :
640 be64_to_cpu(ddq
->d_blk_hardlimit
);
641 soft
= (newlim
->d_fieldmask
& FS_DQ_BSOFT
) ?
642 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_blk_softlimit
) :
643 be64_to_cpu(ddq
->d_blk_softlimit
);
644 if (hard
== 0 || hard
>= soft
) {
645 ddq
->d_blk_hardlimit
= cpu_to_be64(hard
);
646 ddq
->d_blk_softlimit
= cpu_to_be64(soft
);
647 xfs_dquot_set_prealloc_limits(dqp
);
649 q
->qi_bhardlimit
= hard
;
650 q
->qi_bsoftlimit
= soft
;
653 xfs_debug(mp
, "blkhard %Ld < blksoft %Ld", hard
, soft
);
655 hard
= (newlim
->d_fieldmask
& FS_DQ_RTBHARD
) ?
656 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_hardlimit
) :
657 be64_to_cpu(ddq
->d_rtb_hardlimit
);
658 soft
= (newlim
->d_fieldmask
& FS_DQ_RTBSOFT
) ?
659 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_softlimit
) :
660 be64_to_cpu(ddq
->d_rtb_softlimit
);
661 if (hard
== 0 || hard
>= soft
) {
662 ddq
->d_rtb_hardlimit
= cpu_to_be64(hard
);
663 ddq
->d_rtb_softlimit
= cpu_to_be64(soft
);
665 q
->qi_rtbhardlimit
= hard
;
666 q
->qi_rtbsoftlimit
= soft
;
669 xfs_debug(mp
, "rtbhard %Ld < rtbsoft %Ld", hard
, soft
);
672 hard
= (newlim
->d_fieldmask
& FS_DQ_IHARD
) ?
673 (xfs_qcnt_t
) newlim
->d_ino_hardlimit
:
674 be64_to_cpu(ddq
->d_ino_hardlimit
);
675 soft
= (newlim
->d_fieldmask
& FS_DQ_ISOFT
) ?
676 (xfs_qcnt_t
) newlim
->d_ino_softlimit
:
677 be64_to_cpu(ddq
->d_ino_softlimit
);
678 if (hard
== 0 || hard
>= soft
) {
679 ddq
->d_ino_hardlimit
= cpu_to_be64(hard
);
680 ddq
->d_ino_softlimit
= cpu_to_be64(soft
);
682 q
->qi_ihardlimit
= hard
;
683 q
->qi_isoftlimit
= soft
;
686 xfs_debug(mp
, "ihard %Ld < isoft %Ld", hard
, soft
);
690 * Update warnings counter(s) if requested
692 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
693 ddq
->d_bwarns
= cpu_to_be16(newlim
->d_bwarns
);
694 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
695 ddq
->d_iwarns
= cpu_to_be16(newlim
->d_iwarns
);
696 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
697 ddq
->d_rtbwarns
= cpu_to_be16(newlim
->d_rtbwarns
);
701 * Timelimits for the super user set the relative time
702 * the other users can be over quota for this file system.
703 * If it is zero a default is used. Ditto for the default
704 * soft and hard limit values (already done, above), and
707 if (newlim
->d_fieldmask
& FS_DQ_BTIMER
) {
708 q
->qi_btimelimit
= newlim
->d_btimer
;
709 ddq
->d_btimer
= cpu_to_be32(newlim
->d_btimer
);
711 if (newlim
->d_fieldmask
& FS_DQ_ITIMER
) {
712 q
->qi_itimelimit
= newlim
->d_itimer
;
713 ddq
->d_itimer
= cpu_to_be32(newlim
->d_itimer
);
715 if (newlim
->d_fieldmask
& FS_DQ_RTBTIMER
) {
716 q
->qi_rtbtimelimit
= newlim
->d_rtbtimer
;
717 ddq
->d_rtbtimer
= cpu_to_be32(newlim
->d_rtbtimer
);
719 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
720 q
->qi_bwarnlimit
= newlim
->d_bwarns
;
721 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
722 q
->qi_iwarnlimit
= newlim
->d_iwarns
;
723 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
724 q
->qi_rtbwarnlimit
= newlim
->d_rtbwarns
;
727 * If the user is now over quota, start the timelimit.
728 * The user will not be 'warned'.
729 * Note that we keep the timers ticking, whether enforcement
730 * is on or off. We don't really want to bother with iterating
731 * over all ondisk dquots and turning the timers on/off.
733 xfs_qm_adjust_dqtimers(mp
, ddq
);
735 dqp
->dq_flags
|= XFS_DQ_DIRTY
;
736 xfs_trans_log_dquot(tp
, dqp
);
738 error
= xfs_trans_commit(tp
, 0);
743 mutex_unlock(&q
->qi_quotaofflock
);
748 xfs_qm_log_quotaoff_end(
750 xfs_qoff_logitem_t
*startqoff
,
755 xfs_qoff_logitem_t
*qoffi
;
757 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF_END
);
759 error
= xfs_trans_reserve(tp
, &M_RES(mp
)->tr_qm_equotaoff
, 0, 0);
761 xfs_trans_cancel(tp
, 0);
765 qoffi
= xfs_trans_get_qoff_item(tp
, startqoff
,
766 flags
& XFS_ALL_QUOTA_ACCT
);
767 xfs_trans_log_quotaoff_item(tp
, qoffi
);
770 * We have to make sure that the transaction is secure on disk before we
771 * return and actually stop quota accounting. So, make it synchronous.
772 * We don't care about quotoff's performance.
774 xfs_trans_set_sync(tp
);
775 error
= xfs_trans_commit(tp
, 0);
783 xfs_qoff_logitem_t
**qoffstartp
,
788 xfs_qoff_logitem_t
*qoffi
=NULL
;
791 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF
);
792 error
= xfs_trans_reserve(tp
, &M_RES(mp
)->tr_qm_quotaoff
, 0, 0);
796 qoffi
= xfs_trans_get_qoff_item(tp
, NULL
, flags
& XFS_ALL_QUOTA_ACCT
);
797 xfs_trans_log_quotaoff_item(tp
, qoffi
);
799 spin_lock(&mp
->m_sb_lock
);
800 oldsbqflag
= mp
->m_sb
.sb_qflags
;
801 mp
->m_sb
.sb_qflags
= (mp
->m_qflags
& ~(flags
)) & XFS_MOUNT_QUOTA_ALL
;
802 spin_unlock(&mp
->m_sb_lock
);
804 xfs_mod_sb(tp
, XFS_SB_QFLAGS
);
807 * We have to make sure that the transaction is secure on disk before we
808 * return and actually stop quota accounting. So, make it synchronous.
809 * We don't care about quotoff's performance.
811 xfs_trans_set_sync(tp
);
812 error
= xfs_trans_commit(tp
, 0);
816 xfs_trans_cancel(tp
, 0);
818 * No one else is modifying sb_qflags, so this is OK.
819 * We still hold the quotaofflock.
821 spin_lock(&mp
->m_sb_lock
);
822 mp
->m_sb
.sb_qflags
= oldsbqflag
;
823 spin_unlock(&mp
->m_sb_lock
);
831 xfs_qm_scall_getquota(
832 struct xfs_mount
*mp
,
835 struct fs_disk_quota
*dst
)
837 struct xfs_dquot
*dqp
;
841 * Try to get the dquot. We don't want it allocated on disk, so
842 * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't
843 * exist, we'll get ENOENT back.
845 error
= xfs_qm_dqget(mp
, NULL
, id
, type
, 0, &dqp
);
850 * If everything's NULL, this dquot doesn't quite exist as far as
851 * our utility programs are concerned.
853 if (XFS_IS_DQUOT_UNINITIALIZED(dqp
)) {
854 error
= XFS_ERROR(ENOENT
);
858 memset(dst
, 0, sizeof(*dst
));
859 dst
->d_version
= FS_DQUOT_VERSION
;
860 dst
->d_flags
= xfs_qm_export_qtype_flags(dqp
->q_core
.d_flags
);
861 dst
->d_id
= be32_to_cpu(dqp
->q_core
.d_id
);
862 dst
->d_blk_hardlimit
=
863 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_blk_hardlimit
));
864 dst
->d_blk_softlimit
=
865 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_blk_softlimit
));
866 dst
->d_ino_hardlimit
= be64_to_cpu(dqp
->q_core
.d_ino_hardlimit
);
867 dst
->d_ino_softlimit
= be64_to_cpu(dqp
->q_core
.d_ino_softlimit
);
868 dst
->d_bcount
= XFS_FSB_TO_BB(mp
, dqp
->q_res_bcount
);
869 dst
->d_icount
= dqp
->q_res_icount
;
870 dst
->d_btimer
= be32_to_cpu(dqp
->q_core
.d_btimer
);
871 dst
->d_itimer
= be32_to_cpu(dqp
->q_core
.d_itimer
);
872 dst
->d_iwarns
= be16_to_cpu(dqp
->q_core
.d_iwarns
);
873 dst
->d_bwarns
= be16_to_cpu(dqp
->q_core
.d_bwarns
);
874 dst
->d_rtb_hardlimit
=
875 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_rtb_hardlimit
));
876 dst
->d_rtb_softlimit
=
877 XFS_FSB_TO_BB(mp
, be64_to_cpu(dqp
->q_core
.d_rtb_softlimit
));
878 dst
->d_rtbcount
= XFS_FSB_TO_BB(mp
, dqp
->q_res_rtbcount
);
879 dst
->d_rtbtimer
= be32_to_cpu(dqp
->q_core
.d_rtbtimer
);
880 dst
->d_rtbwarns
= be16_to_cpu(dqp
->q_core
.d_rtbwarns
);
883 * Internally, we don't reset all the timers when quota enforcement
884 * gets turned off. No need to confuse the user level code,
885 * so return zeroes in that case.
887 if ((!XFS_IS_UQUOTA_ENFORCED(mp
) &&
888 dqp
->q_core
.d_flags
== XFS_DQ_USER
) ||
889 (!XFS_IS_GQUOTA_ENFORCED(mp
) &&
890 dqp
->q_core
.d_flags
== XFS_DQ_GROUP
) ||
891 (!XFS_IS_PQUOTA_ENFORCED(mp
) &&
892 dqp
->q_core
.d_flags
== XFS_DQ_PROJ
)) {
899 if (((XFS_IS_UQUOTA_ENFORCED(mp
) && dst
->d_flags
== FS_USER_QUOTA
) ||
900 (XFS_IS_GQUOTA_ENFORCED(mp
) && dst
->d_flags
== FS_GROUP_QUOTA
) ||
901 (XFS_IS_PQUOTA_ENFORCED(mp
) && dst
->d_flags
== FS_PROJ_QUOTA
)) &&
903 if ((dst
->d_bcount
> dst
->d_blk_softlimit
) &&
904 (dst
->d_blk_softlimit
> 0)) {
905 ASSERT(dst
->d_btimer
!= 0);
907 if ((dst
->d_icount
> dst
->d_ino_softlimit
) &&
908 (dst
->d_ino_softlimit
> 0)) {
909 ASSERT(dst
->d_itimer
!= 0);
919 xfs_qm_export_qtype_flags(
923 * Can't be more than one, or none.
925 ASSERT((flags
& (FS_PROJ_QUOTA
| FS_USER_QUOTA
)) !=
926 (FS_PROJ_QUOTA
| FS_USER_QUOTA
));
927 ASSERT((flags
& (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
)) !=
928 (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
));
929 ASSERT((flags
& (FS_USER_QUOTA
| FS_GROUP_QUOTA
)) !=
930 (FS_USER_QUOTA
| FS_GROUP_QUOTA
));
931 ASSERT((flags
& (FS_PROJ_QUOTA
|FS_USER_QUOTA
|FS_GROUP_QUOTA
)) != 0);
933 return (flags
& XFS_DQ_USER
) ?
934 FS_USER_QUOTA
: (flags
& XFS_DQ_PROJ
) ?
935 FS_PROJ_QUOTA
: FS_GROUP_QUOTA
;
945 if (flags
& XFS_UQUOTA_ACCT
)
946 uflags
|= FS_QUOTA_UDQ_ACCT
;
947 if (flags
& XFS_GQUOTA_ACCT
)
948 uflags
|= FS_QUOTA_GDQ_ACCT
;
949 if (flags
& XFS_PQUOTA_ACCT
)
950 uflags
|= FS_QUOTA_PDQ_ACCT
;
951 if (flags
& XFS_UQUOTA_ENFD
)
952 uflags
|= FS_QUOTA_UDQ_ENFD
;
953 if (flags
& XFS_GQUOTA_ENFD
)
954 uflags
|= FS_QUOTA_GDQ_ENFD
;
955 if (flags
& XFS_PQUOTA_ENFD
)
956 uflags
|= FS_QUOTA_PDQ_ENFD
;
963 struct xfs_inode
*ip
,
964 struct xfs_perag
*pag
,
968 /* skip quota inodes */
969 if (ip
== ip
->i_mount
->m_quotainfo
->qi_uquotaip
||
970 ip
== ip
->i_mount
->m_quotainfo
->qi_gquotaip
||
971 ip
== ip
->i_mount
->m_quotainfo
->qi_pquotaip
) {
972 ASSERT(ip
->i_udquot
== NULL
);
973 ASSERT(ip
->i_gdquot
== NULL
);
974 ASSERT(ip
->i_pdquot
== NULL
);
978 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
979 if ((flags
& XFS_UQUOTA_ACCT
) && ip
->i_udquot
) {
980 xfs_qm_dqrele(ip
->i_udquot
);
983 if ((flags
& XFS_GQUOTA_ACCT
) && ip
->i_gdquot
) {
984 xfs_qm_dqrele(ip
->i_gdquot
);
987 if ((flags
& XFS_PQUOTA_ACCT
) && ip
->i_pdquot
) {
988 xfs_qm_dqrele(ip
->i_pdquot
);
991 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
997 * Go thru all the inodes in the file system, releasing their dquots.
999 * Note that the mount structure gets modified to indicate that quotas are off
1000 * AFTER this, in the case of quotaoff.
1003 xfs_qm_dqrele_all_inodes(
1004 struct xfs_mount
*mp
,
1007 ASSERT(mp
->m_quotainfo
);
1008 xfs_inode_ag_iterator(mp
, xfs_dqrele_inode
, flags
, NULL
);