2 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 #include <linux/capability.h>
26 #include "xfs_trans.h"
29 #include "xfs_alloc.h"
30 #include "xfs_quota.h"
31 #include "xfs_mount.h"
32 #include "xfs_bmap_btree.h"
33 #include "xfs_inode.h"
34 #include "xfs_inode_item.h"
35 #include "xfs_itable.h"
37 #include "xfs_rtalloc.h"
38 #include "xfs_error.h"
40 #include "xfs_buf_item.h"
41 #include "xfs_utils.h"
43 #include "xfs_trace.h"
45 STATIC
int xfs_qm_log_quotaoff(xfs_mount_t
*, xfs_qoff_logitem_t
**, uint
);
46 STATIC
int xfs_qm_log_quotaoff_end(xfs_mount_t
*, xfs_qoff_logitem_t
*,
48 STATIC uint
xfs_qm_export_flags(uint
);
49 STATIC uint
xfs_qm_export_qtype_flags(uint
);
50 STATIC
void xfs_qm_export_dquot(xfs_mount_t
*, xfs_disk_dquot_t
*,
55 * Turn off quota accounting and/or enforcement for all udquots and/or
56 * gdquots. Called only at unmount time.
58 * This assumes that there are no dquots of this file system cached
59 * incore, and modifies the ondisk dquot directly. Therefore, for example,
60 * it is an error to call this twice, without purging the cache.
63 xfs_qm_scall_quotaoff(
67 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
70 uint inactivate_flags
;
71 xfs_qoff_logitem_t
*qoffstart
;
75 * No file system can have quotas enabled on disk but not in core.
76 * Note that quota utilities (like quotaoff) _expect_
77 * errno == EEXIST here.
79 if ((mp
->m_qflags
& flags
) == 0)
80 return XFS_ERROR(EEXIST
);
83 flags
&= (XFS_ALL_QUOTA_ACCT
| XFS_ALL_QUOTA_ENFD
);
86 * We don't want to deal with two quotaoffs messing up each other,
87 * so we're going to serialize it. quotaoff isn't exactly a performance
89 * If quotaoff, then we must be dealing with the root filesystem.
92 mutex_lock(&q
->qi_quotaofflock
);
95 * If we're just turning off quota enforcement, change mp and go.
97 if ((flags
& XFS_ALL_QUOTA_ACCT
) == 0) {
98 mp
->m_qflags
&= ~(flags
);
100 spin_lock(&mp
->m_sb_lock
);
101 mp
->m_sb
.sb_qflags
= mp
->m_qflags
;
102 spin_unlock(&mp
->m_sb_lock
);
103 mutex_unlock(&q
->qi_quotaofflock
);
105 /* XXX what to do if error ? Revert back to old vals incore ? */
106 error
= xfs_qm_write_sb_changes(mp
, XFS_SB_QFLAGS
);
111 inactivate_flags
= 0;
113 * If accounting is off, we must turn enforcement off, clear the
114 * quota 'CHKD' certificate to make it known that we have to
115 * do a quotacheck the next time this quota is turned on.
117 if (flags
& XFS_UQUOTA_ACCT
) {
118 dqtype
|= XFS_QMOPT_UQUOTA
;
119 flags
|= (XFS_UQUOTA_CHKD
| XFS_UQUOTA_ENFD
);
120 inactivate_flags
|= XFS_UQUOTA_ACTIVE
;
122 if (flags
& XFS_GQUOTA_ACCT
) {
123 dqtype
|= XFS_QMOPT_GQUOTA
;
124 flags
|= (XFS_OQUOTA_CHKD
| XFS_OQUOTA_ENFD
);
125 inactivate_flags
|= XFS_GQUOTA_ACTIVE
;
126 } else if (flags
& XFS_PQUOTA_ACCT
) {
127 dqtype
|= XFS_QMOPT_PQUOTA
;
128 flags
|= (XFS_OQUOTA_CHKD
| XFS_OQUOTA_ENFD
);
129 inactivate_flags
|= XFS_PQUOTA_ACTIVE
;
133 * Nothing to do? Don't complain. This happens when we're just
134 * turning off quota enforcement.
136 if ((mp
->m_qflags
& flags
) == 0)
140 * Write the LI_QUOTAOFF log record, and do SB changes atomically,
141 * and synchronously. If we fail to write, we should abort the
142 * operation as it cannot be recovered safely if we crash.
144 error
= xfs_qm_log_quotaoff(mp
, &qoffstart
, flags
);
149 * Next we clear the XFS_MOUNT_*DQ_ACTIVE bit(s) in the mount struct
150 * to take care of the race between dqget and quotaoff. We don't take
151 * any special locks to reset these bits. All processes need to check
152 * these bits *after* taking inode lock(s) to see if the particular
153 * quota type is in the process of being turned off. If *ACTIVE, it is
154 * guaranteed that all dquot structures and all quotainode ptrs will all
155 * stay valid as long as that inode is kept locked.
157 * There is no turning back after this.
159 mp
->m_qflags
&= ~inactivate_flags
;
162 * Give back all the dquot reference(s) held by inodes.
163 * Here we go thru every single incore inode in this file system, and
164 * do a dqrele on the i_udquot/i_gdquot that it may have.
165 * Essentially, as long as somebody has an inode locked, this guarantees
166 * that quotas will not be turned off. This is handy because in a
167 * transaction once we lock the inode(s) and check for quotaon, we can
168 * depend on the quota inodes (and other things) being valid as long as
169 * we keep the lock(s).
171 xfs_qm_dqrele_all_inodes(mp
, flags
);
174 * Next we make the changes in the quota flag in the mount struct.
175 * This isn't protected by a particular lock directly, because we
176 * don't want to take a mrlock every time we depend on quotas being on.
178 mp
->m_qflags
&= ~(flags
);
181 * Go through all the dquots of this file system and purge them,
182 * according to what was turned off. We may not be able to get rid
183 * of all dquots, because dquots can have temporary references that
184 * are not attached to inodes. eg. xfs_setattr, xfs_create.
185 * So, if we couldn't purge all the dquots from the filesystem,
186 * we can't get rid of the incore data structures.
188 while ((nculprits
= xfs_qm_dqpurge_all(mp
, dqtype
)))
189 delay(10 * nculprits
);
192 * Transactions that had started before ACTIVE state bit was cleared
193 * could have logged many dquots, so they'd have higher LSNs than
194 * the first QUOTAOFF log record does. If we happen to crash when
195 * the tail of the log has gone past the QUOTAOFF record, but
196 * before the last dquot modification, those dquots __will__
197 * recover, and that's not good.
199 * So, we have QUOTAOFF start and end logitems; the start
200 * logitem won't get overwritten until the end logitem appears...
202 error
= xfs_qm_log_quotaoff_end(mp
, qoffstart
, flags
);
204 /* We're screwed now. Shutdown is the only option. */
205 xfs_force_shutdown(mp
, SHUTDOWN_CORRUPT_INCORE
);
210 * If quotas is completely disabled, close shop.
212 if (((flags
& XFS_MOUNT_QUOTA_ALL
) == XFS_MOUNT_QUOTA_SET1
) ||
213 ((flags
& XFS_MOUNT_QUOTA_ALL
) == XFS_MOUNT_QUOTA_SET2
)) {
214 mutex_unlock(&q
->qi_quotaofflock
);
215 xfs_qm_destroy_quotainfo(mp
);
220 * Release our quotainode references if we don't need them anymore.
222 if ((dqtype
& XFS_QMOPT_UQUOTA
) && q
->qi_uquotaip
) {
223 IRELE(q
->qi_uquotaip
);
224 q
->qi_uquotaip
= NULL
;
226 if ((dqtype
& (XFS_QMOPT_GQUOTA
|XFS_QMOPT_PQUOTA
)) && q
->qi_gquotaip
) {
227 IRELE(q
->qi_gquotaip
);
228 q
->qi_gquotaip
= NULL
;
232 mutex_unlock(&q
->qi_quotaofflock
);
237 xfs_qm_scall_trunc_qfile(
238 struct xfs_mount
*mp
,
241 struct xfs_inode
*ip
;
242 struct xfs_trans
*tp
;
245 if (ino
== NULLFSINO
)
248 error
= xfs_iget(mp
, NULL
, ino
, 0, 0, &ip
);
252 xfs_ilock(ip
, XFS_IOLOCK_EXCL
);
254 tp
= xfs_trans_alloc(mp
, XFS_TRANS_TRUNCATE_FILE
);
255 error
= xfs_trans_reserve(tp
, 0, XFS_ITRUNCATE_LOG_RES(mp
), 0,
256 XFS_TRANS_PERM_LOG_RES
,
257 XFS_ITRUNCATE_LOG_COUNT
);
259 xfs_trans_cancel(tp
, 0);
260 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
264 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
265 xfs_trans_ijoin(tp
, ip
, 0);
268 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
270 error
= xfs_itruncate_extents(&tp
, ip
, XFS_DATA_FORK
, 0);
272 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
|
277 ASSERT(ip
->i_d
.di_nextents
== 0);
279 xfs_trans_ichgtime(tp
, ip
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
280 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
);
283 xfs_iunlock(ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
290 xfs_qm_scall_trunc_qfiles(
294 int error
= 0, error2
= 0;
296 if (!xfs_sb_version_hasquota(&mp
->m_sb
) || flags
== 0) {
297 xfs_debug(mp
, "%s: flags=%x m_qflags=%x\n",
298 __func__
, flags
, mp
->m_qflags
);
299 return XFS_ERROR(EINVAL
);
302 if (flags
& XFS_DQ_USER
)
303 error
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_uquotino
);
304 if (flags
& (XFS_DQ_GROUP
|XFS_DQ_PROJ
))
305 error2
= xfs_qm_scall_trunc_qfile(mp
, mp
->m_sb
.sb_gquotino
);
307 return error
? error
: error2
;
311 * Switch on (a given) quota enforcement for a filesystem. This takes
312 * effect immediately.
313 * (Switching on quota accounting must be done at mount time.)
316 xfs_qm_scall_quotaon(
324 flags
&= (XFS_ALL_QUOTA_ACCT
| XFS_ALL_QUOTA_ENFD
);
326 * Switching on quota accounting must be done at mount time.
328 flags
&= ~(XFS_ALL_QUOTA_ACCT
);
333 xfs_debug(mp
, "%s: zero flags, m_qflags=%x\n",
334 __func__
, mp
->m_qflags
);
335 return XFS_ERROR(EINVAL
);
338 /* No fs can turn on quotas with a delayed effect */
339 ASSERT((flags
& XFS_ALL_QUOTA_ACCT
) == 0);
342 * Can't enforce without accounting. We check the superblock
343 * qflags here instead of m_qflags because rootfs can have
344 * quota acct on ondisk without m_qflags' knowing.
346 if (((flags
& XFS_UQUOTA_ACCT
) == 0 &&
347 (mp
->m_sb
.sb_qflags
& XFS_UQUOTA_ACCT
) == 0 &&
348 (flags
& XFS_UQUOTA_ENFD
))
350 ((flags
& XFS_PQUOTA_ACCT
) == 0 &&
351 (mp
->m_sb
.sb_qflags
& XFS_PQUOTA_ACCT
) == 0 &&
352 (flags
& XFS_GQUOTA_ACCT
) == 0 &&
353 (mp
->m_sb
.sb_qflags
& XFS_GQUOTA_ACCT
) == 0 &&
354 (flags
& XFS_OQUOTA_ENFD
))) {
356 "%s: Can't enforce without acct, flags=%x sbflags=%x\n",
357 __func__
, flags
, mp
->m_sb
.sb_qflags
);
358 return XFS_ERROR(EINVAL
);
361 * If everything's up to-date incore, then don't waste time.
363 if ((mp
->m_qflags
& flags
) == flags
)
364 return XFS_ERROR(EEXIST
);
367 * Change sb_qflags on disk but not incore mp->qflags
368 * if this is the root filesystem.
370 spin_lock(&mp
->m_sb_lock
);
371 qf
= mp
->m_sb
.sb_qflags
;
372 mp
->m_sb
.sb_qflags
= qf
| flags
;
373 spin_unlock(&mp
->m_sb_lock
);
376 * There's nothing to change if it's the same.
378 if ((qf
& flags
) == flags
&& sbflags
== 0)
379 return XFS_ERROR(EEXIST
);
380 sbflags
|= XFS_SB_QFLAGS
;
382 if ((error
= xfs_qm_write_sb_changes(mp
, sbflags
)))
385 * If we aren't trying to switch on quota enforcement, we are done.
387 if (((mp
->m_sb
.sb_qflags
& XFS_UQUOTA_ACCT
) !=
388 (mp
->m_qflags
& XFS_UQUOTA_ACCT
)) ||
389 ((mp
->m_sb
.sb_qflags
& XFS_PQUOTA_ACCT
) !=
390 (mp
->m_qflags
& XFS_PQUOTA_ACCT
)) ||
391 ((mp
->m_sb
.sb_qflags
& XFS_GQUOTA_ACCT
) !=
392 (mp
->m_qflags
& XFS_GQUOTA_ACCT
)) ||
393 (flags
& XFS_ALL_QUOTA_ENFD
) == 0)
396 if (! XFS_IS_QUOTA_RUNNING(mp
))
397 return XFS_ERROR(ESRCH
);
400 * Switch on quota enforcement in core.
402 mutex_lock(&mp
->m_quotainfo
->qi_quotaofflock
);
403 mp
->m_qflags
|= (flags
& XFS_ALL_QUOTA_ENFD
);
404 mutex_unlock(&mp
->m_quotainfo
->qi_quotaofflock
);
411 * Return quota status information, such as uquota-off, enforcements, etc.
414 xfs_qm_scall_getqstat(
415 struct xfs_mount
*mp
,
416 struct fs_quota_stat
*out
)
418 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
419 struct xfs_inode
*uip
, *gip
;
420 boolean_t tempuqip
, tempgqip
;
423 tempuqip
= tempgqip
= B_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
;
432 out
->qs_flags
= (__uint16_t
) xfs_qm_export_flags(mp
->m_qflags
&
434 XFS_ALL_QUOTA_ENFD
));
436 out
->qs_uquota
.qfs_ino
= mp
->m_sb
.sb_uquotino
;
437 out
->qs_gquota
.qfs_ino
= mp
->m_sb
.sb_gquotino
;
440 uip
= q
->qi_uquotaip
;
441 gip
= q
->qi_gquotaip
;
443 if (!uip
&& mp
->m_sb
.sb_uquotino
!= NULLFSINO
) {
444 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_uquotino
,
448 if (!gip
&& mp
->m_sb
.sb_gquotino
!= NULLFSINO
) {
449 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_gquotino
,
454 out
->qs_uquota
.qfs_nblks
= uip
->i_d
.di_nblocks
;
455 out
->qs_uquota
.qfs_nextents
= uip
->i_d
.di_nextents
;
460 out
->qs_gquota
.qfs_nblks
= gip
->i_d
.di_nblocks
;
461 out
->qs_gquota
.qfs_nextents
= gip
->i_d
.di_nextents
;
466 out
->qs_incoredqs
= q
->qi_dquots
;
467 out
->qs_btimelimit
= q
->qi_btimelimit
;
468 out
->qs_itimelimit
= q
->qi_itimelimit
;
469 out
->qs_rtbtimelimit
= q
->qi_rtbtimelimit
;
470 out
->qs_bwarnlimit
= q
->qi_bwarnlimit
;
471 out
->qs_iwarnlimit
= q
->qi_iwarnlimit
;
476 #define XFS_DQ_MASK \
477 (FS_DQ_LIMIT_MASK | FS_DQ_TIMER_MASK | FS_DQ_WARNS_MASK)
480 * Adjust quota limits, and start/stop timers accordingly.
483 xfs_qm_scall_setqlim(
487 fs_disk_quota_t
*newlim
)
489 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
490 xfs_disk_dquot_t
*ddq
;
494 xfs_qcnt_t hard
, soft
;
496 if (newlim
->d_fieldmask
& ~XFS_DQ_MASK
)
498 if ((newlim
->d_fieldmask
& XFS_DQ_MASK
) == 0)
501 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_SETQLIM
);
502 if ((error
= xfs_trans_reserve(tp
, 0, sizeof(xfs_disk_dquot_t
) + 128,
503 0, 0, XFS_DEFAULT_LOG_COUNT
))) {
504 xfs_trans_cancel(tp
, 0);
509 * We don't want to race with a quotaoff so take the quotaoff lock.
510 * (We don't hold an inode lock, so there's nothing else to stop
511 * a quotaoff from happening). (XXXThis doesn't currently happen
512 * because we take the vfslock before calling xfs_qm_sysent).
514 mutex_lock(&q
->qi_quotaofflock
);
517 * Get the dquot (locked), and join it to the transaction.
518 * Allocate the dquot if this doesn't exist.
520 if ((error
= xfs_qm_dqget(mp
, NULL
, id
, type
, XFS_QMOPT_DQALLOC
, &dqp
))) {
521 xfs_trans_cancel(tp
, XFS_TRANS_ABORT
);
522 ASSERT(error
!= ENOENT
);
525 xfs_trans_dqjoin(tp
, dqp
);
529 * Make sure that hardlimits are >= soft limits before changing.
531 hard
= (newlim
->d_fieldmask
& FS_DQ_BHARD
) ?
532 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_blk_hardlimit
) :
533 be64_to_cpu(ddq
->d_blk_hardlimit
);
534 soft
= (newlim
->d_fieldmask
& FS_DQ_BSOFT
) ?
535 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_blk_softlimit
) :
536 be64_to_cpu(ddq
->d_blk_softlimit
);
537 if (hard
== 0 || hard
>= soft
) {
538 ddq
->d_blk_hardlimit
= cpu_to_be64(hard
);
539 ddq
->d_blk_softlimit
= cpu_to_be64(soft
);
541 q
->qi_bhardlimit
= hard
;
542 q
->qi_bsoftlimit
= soft
;
545 xfs_debug(mp
, "blkhard %Ld < blksoft %Ld\n", hard
, soft
);
547 hard
= (newlim
->d_fieldmask
& FS_DQ_RTBHARD
) ?
548 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_hardlimit
) :
549 be64_to_cpu(ddq
->d_rtb_hardlimit
);
550 soft
= (newlim
->d_fieldmask
& FS_DQ_RTBSOFT
) ?
551 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_softlimit
) :
552 be64_to_cpu(ddq
->d_rtb_softlimit
);
553 if (hard
== 0 || hard
>= soft
) {
554 ddq
->d_rtb_hardlimit
= cpu_to_be64(hard
);
555 ddq
->d_rtb_softlimit
= cpu_to_be64(soft
);
557 q
->qi_rtbhardlimit
= hard
;
558 q
->qi_rtbsoftlimit
= soft
;
561 xfs_debug(mp
, "rtbhard %Ld < rtbsoft %Ld\n", hard
, soft
);
564 hard
= (newlim
->d_fieldmask
& FS_DQ_IHARD
) ?
565 (xfs_qcnt_t
) newlim
->d_ino_hardlimit
:
566 be64_to_cpu(ddq
->d_ino_hardlimit
);
567 soft
= (newlim
->d_fieldmask
& FS_DQ_ISOFT
) ?
568 (xfs_qcnt_t
) newlim
->d_ino_softlimit
:
569 be64_to_cpu(ddq
->d_ino_softlimit
);
570 if (hard
== 0 || hard
>= soft
) {
571 ddq
->d_ino_hardlimit
= cpu_to_be64(hard
);
572 ddq
->d_ino_softlimit
= cpu_to_be64(soft
);
574 q
->qi_ihardlimit
= hard
;
575 q
->qi_isoftlimit
= soft
;
578 xfs_debug(mp
, "ihard %Ld < isoft %Ld\n", hard
, soft
);
582 * Update warnings counter(s) if requested
584 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
585 ddq
->d_bwarns
= cpu_to_be16(newlim
->d_bwarns
);
586 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
587 ddq
->d_iwarns
= cpu_to_be16(newlim
->d_iwarns
);
588 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
589 ddq
->d_rtbwarns
= cpu_to_be16(newlim
->d_rtbwarns
);
593 * Timelimits for the super user set the relative time
594 * the other users can be over quota for this file system.
595 * If it is zero a default is used. Ditto for the default
596 * soft and hard limit values (already done, above), and
599 if (newlim
->d_fieldmask
& FS_DQ_BTIMER
) {
600 q
->qi_btimelimit
= newlim
->d_btimer
;
601 ddq
->d_btimer
= cpu_to_be32(newlim
->d_btimer
);
603 if (newlim
->d_fieldmask
& FS_DQ_ITIMER
) {
604 q
->qi_itimelimit
= newlim
->d_itimer
;
605 ddq
->d_itimer
= cpu_to_be32(newlim
->d_itimer
);
607 if (newlim
->d_fieldmask
& FS_DQ_RTBTIMER
) {
608 q
->qi_rtbtimelimit
= newlim
->d_rtbtimer
;
609 ddq
->d_rtbtimer
= cpu_to_be32(newlim
->d_rtbtimer
);
611 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
612 q
->qi_bwarnlimit
= newlim
->d_bwarns
;
613 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
614 q
->qi_iwarnlimit
= newlim
->d_iwarns
;
615 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
616 q
->qi_rtbwarnlimit
= newlim
->d_rtbwarns
;
619 * If the user is now over quota, start the timelimit.
620 * The user will not be 'warned'.
621 * Note that we keep the timers ticking, whether enforcement
622 * is on or off. We don't really want to bother with iterating
623 * over all ondisk dquots and turning the timers on/off.
625 xfs_qm_adjust_dqtimers(mp
, ddq
);
627 dqp
->dq_flags
|= XFS_DQ_DIRTY
;
628 xfs_trans_log_dquot(tp
, dqp
);
630 error
= xfs_trans_commit(tp
, 0);
634 mutex_unlock(&q
->qi_quotaofflock
);
639 xfs_qm_scall_getquota(
643 fs_disk_quota_t
*out
)
649 * Try to get the dquot. We don't want it allocated on disk, so
650 * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't
651 * exist, we'll get ENOENT back.
653 if ((error
= xfs_qm_dqget(mp
, NULL
, id
, type
, 0, &dqp
))) {
658 * If everything's NULL, this dquot doesn't quite exist as far as
659 * our utility programs are concerned.
661 if (XFS_IS_DQUOT_UNINITIALIZED(dqp
)) {
663 return XFS_ERROR(ENOENT
);
666 * Convert the disk dquot to the exportable format
668 xfs_qm_export_dquot(mp
, &dqp
->q_core
, out
);
670 return (error
? XFS_ERROR(EFAULT
) : 0);
675 xfs_qm_log_quotaoff_end(
677 xfs_qoff_logitem_t
*startqoff
,
682 xfs_qoff_logitem_t
*qoffi
;
684 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF_END
);
686 if ((error
= xfs_trans_reserve(tp
, 0, sizeof(xfs_qoff_logitem_t
) * 2,
687 0, 0, XFS_DEFAULT_LOG_COUNT
))) {
688 xfs_trans_cancel(tp
, 0);
692 qoffi
= xfs_trans_get_qoff_item(tp
, startqoff
,
693 flags
& XFS_ALL_QUOTA_ACCT
);
694 xfs_trans_log_quotaoff_item(tp
, qoffi
);
697 * We have to make sure that the transaction is secure on disk before we
698 * return and actually stop quota accounting. So, make it synchronous.
699 * We don't care about quotoff's performance.
701 xfs_trans_set_sync(tp
);
702 error
= xfs_trans_commit(tp
, 0);
710 xfs_qoff_logitem_t
**qoffstartp
,
715 xfs_qoff_logitem_t
*qoffi
=NULL
;
718 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF
);
719 if ((error
= xfs_trans_reserve(tp
, 0,
720 sizeof(xfs_qoff_logitem_t
) * 2 +
721 mp
->m_sb
.sb_sectsize
+ 128,
724 XFS_DEFAULT_LOG_COUNT
))) {
728 qoffi
= xfs_trans_get_qoff_item(tp
, NULL
, flags
& XFS_ALL_QUOTA_ACCT
);
729 xfs_trans_log_quotaoff_item(tp
, qoffi
);
731 spin_lock(&mp
->m_sb_lock
);
732 oldsbqflag
= mp
->m_sb
.sb_qflags
;
733 mp
->m_sb
.sb_qflags
= (mp
->m_qflags
& ~(flags
)) & XFS_MOUNT_QUOTA_ALL
;
734 spin_unlock(&mp
->m_sb_lock
);
736 xfs_mod_sb(tp
, XFS_SB_QFLAGS
);
739 * We have to make sure that the transaction is secure on disk before we
740 * return and actually stop quota accounting. So, make it synchronous.
741 * We don't care about quotoff's performance.
743 xfs_trans_set_sync(tp
);
744 error
= xfs_trans_commit(tp
, 0);
748 xfs_trans_cancel(tp
, 0);
750 * No one else is modifying sb_qflags, so this is OK.
751 * We still hold the quotaofflock.
753 spin_lock(&mp
->m_sb_lock
);
754 mp
->m_sb
.sb_qflags
= oldsbqflag
;
755 spin_unlock(&mp
->m_sb_lock
);
763 * Translate an internal style on-disk-dquot to the exportable format.
764 * The main differences are that the counters/limits are all in Basic
765 * Blocks (BBs) instead of the internal FSBs, and all on-disk data has
766 * to be converted to the native endianness.
771 xfs_disk_dquot_t
*src
,
772 struct fs_disk_quota
*dst
)
774 memset(dst
, 0, sizeof(*dst
));
775 dst
->d_version
= FS_DQUOT_VERSION
; /* different from src->d_version */
776 dst
->d_flags
= xfs_qm_export_qtype_flags(src
->d_flags
);
777 dst
->d_id
= be32_to_cpu(src
->d_id
);
778 dst
->d_blk_hardlimit
=
779 XFS_FSB_TO_BB(mp
, be64_to_cpu(src
->d_blk_hardlimit
));
780 dst
->d_blk_softlimit
=
781 XFS_FSB_TO_BB(mp
, be64_to_cpu(src
->d_blk_softlimit
));
782 dst
->d_ino_hardlimit
= be64_to_cpu(src
->d_ino_hardlimit
);
783 dst
->d_ino_softlimit
= be64_to_cpu(src
->d_ino_softlimit
);
784 dst
->d_bcount
= XFS_FSB_TO_BB(mp
, be64_to_cpu(src
->d_bcount
));
785 dst
->d_icount
= be64_to_cpu(src
->d_icount
);
786 dst
->d_btimer
= be32_to_cpu(src
->d_btimer
);
787 dst
->d_itimer
= be32_to_cpu(src
->d_itimer
);
788 dst
->d_iwarns
= be16_to_cpu(src
->d_iwarns
);
789 dst
->d_bwarns
= be16_to_cpu(src
->d_bwarns
);
790 dst
->d_rtb_hardlimit
=
791 XFS_FSB_TO_BB(mp
, be64_to_cpu(src
->d_rtb_hardlimit
));
792 dst
->d_rtb_softlimit
=
793 XFS_FSB_TO_BB(mp
, be64_to_cpu(src
->d_rtb_softlimit
));
794 dst
->d_rtbcount
= XFS_FSB_TO_BB(mp
, be64_to_cpu(src
->d_rtbcount
));
795 dst
->d_rtbtimer
= be32_to_cpu(src
->d_rtbtimer
);
796 dst
->d_rtbwarns
= be16_to_cpu(src
->d_rtbwarns
);
799 * Internally, we don't reset all the timers when quota enforcement
800 * gets turned off. No need to confuse the user level code,
801 * so return zeroes in that case.
803 if ((!XFS_IS_UQUOTA_ENFORCED(mp
) && src
->d_flags
== XFS_DQ_USER
) ||
804 (!XFS_IS_OQUOTA_ENFORCED(mp
) &&
805 (src
->d_flags
& (XFS_DQ_PROJ
| XFS_DQ_GROUP
)))) {
812 if (((XFS_IS_UQUOTA_ENFORCED(mp
) && dst
->d_flags
== FS_USER_QUOTA
) ||
813 (XFS_IS_OQUOTA_ENFORCED(mp
) &&
814 (dst
->d_flags
& (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
)))) &&
816 if (((int) dst
->d_bcount
>= (int) dst
->d_blk_softlimit
) &&
817 (dst
->d_blk_softlimit
> 0)) {
818 ASSERT(dst
->d_btimer
!= 0);
820 if (((int) dst
->d_icount
>= (int) dst
->d_ino_softlimit
) &&
821 (dst
->d_ino_softlimit
> 0)) {
822 ASSERT(dst
->d_itimer
!= 0);
829 xfs_qm_export_qtype_flags(
833 * Can't be more than one, or none.
835 ASSERT((flags
& (FS_PROJ_QUOTA
| FS_USER_QUOTA
)) !=
836 (FS_PROJ_QUOTA
| FS_USER_QUOTA
));
837 ASSERT((flags
& (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
)) !=
838 (FS_PROJ_QUOTA
| FS_GROUP_QUOTA
));
839 ASSERT((flags
& (FS_USER_QUOTA
| FS_GROUP_QUOTA
)) !=
840 (FS_USER_QUOTA
| FS_GROUP_QUOTA
));
841 ASSERT((flags
& (FS_PROJ_QUOTA
|FS_USER_QUOTA
|FS_GROUP_QUOTA
)) != 0);
843 return (flags
& XFS_DQ_USER
) ?
844 FS_USER_QUOTA
: (flags
& XFS_DQ_PROJ
) ?
845 FS_PROJ_QUOTA
: FS_GROUP_QUOTA
;
855 if (flags
& XFS_UQUOTA_ACCT
)
856 uflags
|= FS_QUOTA_UDQ_ACCT
;
857 if (flags
& XFS_PQUOTA_ACCT
)
858 uflags
|= FS_QUOTA_PDQ_ACCT
;
859 if (flags
& XFS_GQUOTA_ACCT
)
860 uflags
|= FS_QUOTA_GDQ_ACCT
;
861 if (flags
& XFS_UQUOTA_ENFD
)
862 uflags
|= FS_QUOTA_UDQ_ENFD
;
863 if (flags
& (XFS_OQUOTA_ENFD
)) {
864 uflags
|= (flags
& XFS_GQUOTA_ACCT
) ?
865 FS_QUOTA_GDQ_ENFD
: FS_QUOTA_PDQ_ENFD
;
873 struct xfs_inode
*ip
,
874 struct xfs_perag
*pag
,
877 /* skip quota inodes */
878 if (ip
== ip
->i_mount
->m_quotainfo
->qi_uquotaip
||
879 ip
== ip
->i_mount
->m_quotainfo
->qi_gquotaip
) {
880 ASSERT(ip
->i_udquot
== NULL
);
881 ASSERT(ip
->i_gdquot
== NULL
);
885 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
886 if ((flags
& XFS_UQUOTA_ACCT
) && ip
->i_udquot
) {
887 xfs_qm_dqrele(ip
->i_udquot
);
890 if (flags
& (XFS_PQUOTA_ACCT
|XFS_GQUOTA_ACCT
) && ip
->i_gdquot
) {
891 xfs_qm_dqrele(ip
->i_gdquot
);
894 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
900 * Go thru all the inodes in the file system, releasing their dquots.
902 * Note that the mount structure gets modified to indicate that quotas are off
903 * AFTER this, in the case of quotaoff.
906 xfs_qm_dqrele_all_inodes(
907 struct xfs_mount
*mp
,
910 ASSERT(mp
->m_quotainfo
);
911 xfs_inode_ag_iterator(mp
, xfs_dqrele_inode
, flags
);