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"
30 #include "xfs_alloc.h"
31 #include "xfs_dmapi.h"
32 #include "xfs_quota.h"
33 #include "xfs_mount.h"
34 #include "xfs_bmap_btree.h"
35 #include "xfs_alloc_btree.h"
36 #include "xfs_ialloc_btree.h"
37 #include "xfs_dir2_sf.h"
38 #include "xfs_attr_sf.h"
39 #include "xfs_dinode.h"
40 #include "xfs_inode.h"
41 #include "xfs_ialloc.h"
42 #include "xfs_itable.h"
44 #include "xfs_btree.h"
45 #include "xfs_rtalloc.h"
46 #include "xfs_error.h"
49 #include "xfs_buf_item.h"
50 #include "xfs_utils.h"
52 #include "xfs_trace.h"
55 # define qdprintk(s, args...) cmn_err(CE_DEBUG, s, ## args)
57 # define qdprintk(s, args...) do { } while (0)
60 STATIC
int xfs_qm_log_quotaoff(xfs_mount_t
*, xfs_qoff_logitem_t
**, uint
);
61 STATIC
int xfs_qm_log_quotaoff_end(xfs_mount_t
*, xfs_qoff_logitem_t
*,
63 STATIC uint
xfs_qm_export_flags(uint
);
64 STATIC uint
xfs_qm_export_qtype_flags(uint
);
65 STATIC
void xfs_qm_export_dquot(xfs_mount_t
*, xfs_disk_dquot_t
*,
70 * Turn off quota accounting and/or enforcement for all udquots and/or
71 * gdquots. Called only at unmount time.
73 * This assumes that there are no dquots of this file system cached
74 * incore, and modifies the ondisk dquot directly. Therefore, for example,
75 * it is an error to call this twice, without purging the cache.
78 xfs_qm_scall_quotaoff(
82 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
85 uint inactivate_flags
;
86 xfs_qoff_logitem_t
*qoffstart
;
90 * No file system can have quotas enabled on disk but not in core.
91 * Note that quota utilities (like quotaoff) _expect_
92 * errno == EEXIST here.
94 if ((mp
->m_qflags
& flags
) == 0)
95 return XFS_ERROR(EEXIST
);
98 flags
&= (XFS_ALL_QUOTA_ACCT
| XFS_ALL_QUOTA_ENFD
);
101 * We don't want to deal with two quotaoffs messing up each other,
102 * so we're going to serialize it. quotaoff isn't exactly a performance
104 * If quotaoff, then we must be dealing with the root filesystem.
107 mutex_lock(&q
->qi_quotaofflock
);
110 * If we're just turning off quota enforcement, change mp and go.
112 if ((flags
& XFS_ALL_QUOTA_ACCT
) == 0) {
113 mp
->m_qflags
&= ~(flags
);
115 spin_lock(&mp
->m_sb_lock
);
116 mp
->m_sb
.sb_qflags
= mp
->m_qflags
;
117 spin_unlock(&mp
->m_sb_lock
);
118 mutex_unlock(&q
->qi_quotaofflock
);
120 /* XXX what to do if error ? Revert back to old vals incore ? */
121 error
= xfs_qm_write_sb_changes(mp
, XFS_SB_QFLAGS
);
126 inactivate_flags
= 0;
128 * If accounting is off, we must turn enforcement off, clear the
129 * quota 'CHKD' certificate to make it known that we have to
130 * do a quotacheck the next time this quota is turned on.
132 if (flags
& XFS_UQUOTA_ACCT
) {
133 dqtype
|= XFS_QMOPT_UQUOTA
;
134 flags
|= (XFS_UQUOTA_CHKD
| XFS_UQUOTA_ENFD
);
135 inactivate_flags
|= XFS_UQUOTA_ACTIVE
;
137 if (flags
& XFS_GQUOTA_ACCT
) {
138 dqtype
|= XFS_QMOPT_GQUOTA
;
139 flags
|= (XFS_OQUOTA_CHKD
| XFS_OQUOTA_ENFD
);
140 inactivate_flags
|= XFS_GQUOTA_ACTIVE
;
141 } else if (flags
& XFS_PQUOTA_ACCT
) {
142 dqtype
|= XFS_QMOPT_PQUOTA
;
143 flags
|= (XFS_OQUOTA_CHKD
| XFS_OQUOTA_ENFD
);
144 inactivate_flags
|= XFS_PQUOTA_ACTIVE
;
148 * Nothing to do? Don't complain. This happens when we're just
149 * turning off quota enforcement.
151 if ((mp
->m_qflags
& flags
) == 0)
155 * Write the LI_QUOTAOFF log record, and do SB changes atomically,
156 * and synchronously. If we fail to write, we should abort the
157 * operation as it cannot be recovered safely if we crash.
159 error
= xfs_qm_log_quotaoff(mp
, &qoffstart
, flags
);
164 * Next we clear the XFS_MOUNT_*DQ_ACTIVE bit(s) in the mount struct
165 * to take care of the race between dqget and quotaoff. We don't take
166 * any special locks to reset these bits. All processes need to check
167 * these bits *after* taking inode lock(s) to see if the particular
168 * quota type is in the process of being turned off. If *ACTIVE, it is
169 * guaranteed that all dquot structures and all quotainode ptrs will all
170 * stay valid as long as that inode is kept locked.
172 * There is no turning back after this.
174 mp
->m_qflags
&= ~inactivate_flags
;
177 * Give back all the dquot reference(s) held by inodes.
178 * Here we go thru every single incore inode in this file system, and
179 * do a dqrele on the i_udquot/i_gdquot that it may have.
180 * Essentially, as long as somebody has an inode locked, this guarantees
181 * that quotas will not be turned off. This is handy because in a
182 * transaction once we lock the inode(s) and check for quotaon, we can
183 * depend on the quota inodes (and other things) being valid as long as
184 * we keep the lock(s).
186 xfs_qm_dqrele_all_inodes(mp
, flags
);
189 * Next we make the changes in the quota flag in the mount struct.
190 * This isn't protected by a particular lock directly, because we
191 * don't want to take a mrlock everytime we depend on quotas being on.
193 mp
->m_qflags
&= ~(flags
);
196 * Go through all the dquots of this file system and purge them,
197 * according to what was turned off. We may not be able to get rid
198 * of all dquots, because dquots can have temporary references that
199 * are not attached to inodes. eg. xfs_setattr, xfs_create.
200 * So, if we couldn't purge all the dquots from the filesystem,
201 * we can't get rid of the incore data structures.
203 while ((nculprits
= xfs_qm_dqpurge_all(mp
, dqtype
)))
204 delay(10 * nculprits
);
207 * Transactions that had started before ACTIVE state bit was cleared
208 * could have logged many dquots, so they'd have higher LSNs than
209 * the first QUOTAOFF log record does. If we happen to crash when
210 * the tail of the log has gone past the QUOTAOFF record, but
211 * before the last dquot modification, those dquots __will__
212 * recover, and that's not good.
214 * So, we have QUOTAOFF start and end logitems; the start
215 * logitem won't get overwritten until the end logitem appears...
217 error
= xfs_qm_log_quotaoff_end(mp
, qoffstart
, flags
);
219 /* We're screwed now. Shutdown is the only option. */
220 xfs_force_shutdown(mp
, SHUTDOWN_CORRUPT_INCORE
);
225 * If quotas is completely disabled, close shop.
227 if (((flags
& XFS_MOUNT_QUOTA_ALL
) == XFS_MOUNT_QUOTA_SET1
) ||
228 ((flags
& XFS_MOUNT_QUOTA_ALL
) == XFS_MOUNT_QUOTA_SET2
)) {
229 mutex_unlock(&q
->qi_quotaofflock
);
230 xfs_qm_destroy_quotainfo(mp
);
235 * Release our quotainode references if we don't need them anymore.
237 if ((dqtype
& XFS_QMOPT_UQUOTA
) && q
->qi_uquotaip
) {
238 IRELE(q
->qi_uquotaip
);
239 q
->qi_uquotaip
= NULL
;
241 if ((dqtype
& (XFS_QMOPT_GQUOTA
|XFS_QMOPT_PQUOTA
)) && q
->qi_gquotaip
) {
242 IRELE(q
->qi_gquotaip
);
243 q
->qi_gquotaip
= NULL
;
247 mutex_unlock(&q
->qi_quotaofflock
);
252 xfs_qm_scall_trunc_qfiles(
256 int error
= 0, error2
= 0;
259 if (!xfs_sb_version_hasquota(&mp
->m_sb
) || flags
== 0) {
260 qdprintk("qtrunc flags=%x m_qflags=%x\n", flags
, mp
->m_qflags
);
261 return XFS_ERROR(EINVAL
);
264 if ((flags
& XFS_DQ_USER
) && mp
->m_sb
.sb_uquotino
!= NULLFSINO
) {
265 error
= xfs_iget(mp
, NULL
, mp
->m_sb
.sb_uquotino
, 0, 0, &qip
, 0);
267 error
= xfs_truncate_file(mp
, qip
);
272 if ((flags
& (XFS_DQ_GROUP
|XFS_DQ_PROJ
)) &&
273 mp
->m_sb
.sb_gquotino
!= NULLFSINO
) {
274 error2
= xfs_iget(mp
, NULL
, mp
->m_sb
.sb_gquotino
, 0, 0, &qip
, 0);
276 error2
= xfs_truncate_file(mp
, qip
);
281 return error
? error
: error2
;
286 * Switch on (a given) quota enforcement for a filesystem. This takes
287 * effect immediately.
288 * (Switching on quota accounting must be done at mount time.)
291 xfs_qm_scall_quotaon(
300 flags
&= (XFS_ALL_QUOTA_ACCT
| XFS_ALL_QUOTA_ENFD
);
302 * Switching on quota accounting must be done at mount time.
304 accflags
= flags
& XFS_ALL_QUOTA_ACCT
;
305 flags
&= ~(XFS_ALL_QUOTA_ACCT
);
310 qdprintk("quotaon: zero flags, m_qflags=%x\n", mp
->m_qflags
);
311 return XFS_ERROR(EINVAL
);
314 /* No fs can turn on quotas with a delayed effect */
315 ASSERT((flags
& XFS_ALL_QUOTA_ACCT
) == 0);
318 * Can't enforce without accounting. We check the superblock
319 * qflags here instead of m_qflags because rootfs can have
320 * quota acct on ondisk without m_qflags' knowing.
322 if (((flags
& XFS_UQUOTA_ACCT
) == 0 &&
323 (mp
->m_sb
.sb_qflags
& XFS_UQUOTA_ACCT
) == 0 &&
324 (flags
& XFS_UQUOTA_ENFD
))
326 ((flags
& XFS_PQUOTA_ACCT
) == 0 &&
327 (mp
->m_sb
.sb_qflags
& XFS_PQUOTA_ACCT
) == 0 &&
328 (flags
& XFS_GQUOTA_ACCT
) == 0 &&
329 (mp
->m_sb
.sb_qflags
& XFS_GQUOTA_ACCT
) == 0 &&
330 (flags
& XFS_OQUOTA_ENFD
))) {
331 qdprintk("Can't enforce without acct, flags=%x sbflags=%x\n",
332 flags
, mp
->m_sb
.sb_qflags
);
333 return XFS_ERROR(EINVAL
);
336 * If everything's upto-date incore, then don't waste time.
338 if ((mp
->m_qflags
& flags
) == flags
)
339 return XFS_ERROR(EEXIST
);
342 * Change sb_qflags on disk but not incore mp->qflags
343 * if this is the root filesystem.
345 spin_lock(&mp
->m_sb_lock
);
346 qf
= mp
->m_sb
.sb_qflags
;
347 mp
->m_sb
.sb_qflags
= qf
| flags
;
348 spin_unlock(&mp
->m_sb_lock
);
351 * There's nothing to change if it's the same.
353 if ((qf
& flags
) == flags
&& sbflags
== 0)
354 return XFS_ERROR(EEXIST
);
355 sbflags
|= XFS_SB_QFLAGS
;
357 if ((error
= xfs_qm_write_sb_changes(mp
, sbflags
)))
360 * If we aren't trying to switch on quota enforcement, we are done.
362 if (((mp
->m_sb
.sb_qflags
& XFS_UQUOTA_ACCT
) !=
363 (mp
->m_qflags
& XFS_UQUOTA_ACCT
)) ||
364 ((mp
->m_sb
.sb_qflags
& XFS_PQUOTA_ACCT
) !=
365 (mp
->m_qflags
& XFS_PQUOTA_ACCT
)) ||
366 ((mp
->m_sb
.sb_qflags
& XFS_GQUOTA_ACCT
) !=
367 (mp
->m_qflags
& XFS_GQUOTA_ACCT
)) ||
368 (flags
& XFS_ALL_QUOTA_ENFD
) == 0)
371 if (! XFS_IS_QUOTA_RUNNING(mp
))
372 return XFS_ERROR(ESRCH
);
375 * Switch on quota enforcement in core.
377 mutex_lock(&mp
->m_quotainfo
->qi_quotaofflock
);
378 mp
->m_qflags
|= (flags
& XFS_ALL_QUOTA_ENFD
);
379 mutex_unlock(&mp
->m_quotainfo
->qi_quotaofflock
);
386 * Return quota status information, such as uquota-off, enforcements, etc.
389 xfs_qm_scall_getqstat(
390 struct xfs_mount
*mp
,
391 struct fs_quota_stat
*out
)
393 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
394 struct xfs_inode
*uip
, *gip
;
395 boolean_t tempuqip
, tempgqip
;
398 tempuqip
= tempgqip
= B_FALSE
;
399 memset(out
, 0, sizeof(fs_quota_stat_t
));
401 out
->qs_version
= FS_QSTAT_VERSION
;
402 if (!xfs_sb_version_hasquota(&mp
->m_sb
)) {
403 out
->qs_uquota
.qfs_ino
= NULLFSINO
;
404 out
->qs_gquota
.qfs_ino
= NULLFSINO
;
407 out
->qs_flags
= (__uint16_t
) xfs_qm_export_flags(mp
->m_qflags
&
409 XFS_ALL_QUOTA_ENFD
));
411 out
->qs_uquota
.qfs_ino
= mp
->m_sb
.sb_uquotino
;
412 out
->qs_gquota
.qfs_ino
= mp
->m_sb
.sb_gquotino
;
415 uip
= q
->qi_uquotaip
;
416 gip
= q
->qi_gquotaip
;
418 if (!uip
&& mp
->m_sb
.sb_uquotino
!= NULLFSINO
) {
419 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_uquotino
,
423 if (!gip
&& mp
->m_sb
.sb_gquotino
!= NULLFSINO
) {
424 if (xfs_iget(mp
, NULL
, mp
->m_sb
.sb_gquotino
,
429 out
->qs_uquota
.qfs_nblks
= uip
->i_d
.di_nblocks
;
430 out
->qs_uquota
.qfs_nextents
= uip
->i_d
.di_nextents
;
435 out
->qs_gquota
.qfs_nblks
= gip
->i_d
.di_nblocks
;
436 out
->qs_gquota
.qfs_nextents
= gip
->i_d
.di_nextents
;
441 out
->qs_incoredqs
= q
->qi_dquots
;
442 out
->qs_btimelimit
= q
->qi_btimelimit
;
443 out
->qs_itimelimit
= q
->qi_itimelimit
;
444 out
->qs_rtbtimelimit
= q
->qi_rtbtimelimit
;
445 out
->qs_bwarnlimit
= q
->qi_bwarnlimit
;
446 out
->qs_iwarnlimit
= q
->qi_iwarnlimit
;
452 * Adjust quota limits, and start/stop timers accordingly.
455 xfs_qm_scall_setqlim(
459 fs_disk_quota_t
*newlim
)
461 struct xfs_quotainfo
*q
= mp
->m_quotainfo
;
462 xfs_disk_dquot_t
*ddq
;
466 xfs_qcnt_t hard
, soft
;
468 if ((newlim
->d_fieldmask
&
469 (FS_DQ_LIMIT_MASK
|FS_DQ_TIMER_MASK
|FS_DQ_WARNS_MASK
)) == 0)
472 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_SETQLIM
);
473 if ((error
= xfs_trans_reserve(tp
, 0, sizeof(xfs_disk_dquot_t
) + 128,
474 0, 0, XFS_DEFAULT_LOG_COUNT
))) {
475 xfs_trans_cancel(tp
, 0);
480 * We don't want to race with a quotaoff so take the quotaoff lock.
481 * (We don't hold an inode lock, so there's nothing else to stop
482 * a quotaoff from happening). (XXXThis doesn't currently happen
483 * because we take the vfslock before calling xfs_qm_sysent).
485 mutex_lock(&q
->qi_quotaofflock
);
488 * Get the dquot (locked), and join it to the transaction.
489 * Allocate the dquot if this doesn't exist.
491 if ((error
= xfs_qm_dqget(mp
, NULL
, id
, type
, XFS_QMOPT_DQALLOC
, &dqp
))) {
492 xfs_trans_cancel(tp
, XFS_TRANS_ABORT
);
493 ASSERT(error
!= ENOENT
);
496 xfs_trans_dqjoin(tp
, dqp
);
500 * Make sure that hardlimits are >= soft limits before changing.
502 hard
= (newlim
->d_fieldmask
& FS_DQ_BHARD
) ?
503 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_blk_hardlimit
) :
504 be64_to_cpu(ddq
->d_blk_hardlimit
);
505 soft
= (newlim
->d_fieldmask
& FS_DQ_BSOFT
) ?
506 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_blk_softlimit
) :
507 be64_to_cpu(ddq
->d_blk_softlimit
);
508 if (hard
== 0 || hard
>= soft
) {
509 ddq
->d_blk_hardlimit
= cpu_to_be64(hard
);
510 ddq
->d_blk_softlimit
= cpu_to_be64(soft
);
512 q
->qi_bhardlimit
= hard
;
513 q
->qi_bsoftlimit
= soft
;
516 qdprintk("blkhard %Ld < blksoft %Ld\n", hard
, soft
);
518 hard
= (newlim
->d_fieldmask
& FS_DQ_RTBHARD
) ?
519 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_hardlimit
) :
520 be64_to_cpu(ddq
->d_rtb_hardlimit
);
521 soft
= (newlim
->d_fieldmask
& FS_DQ_RTBSOFT
) ?
522 (xfs_qcnt_t
) XFS_BB_TO_FSB(mp
, newlim
->d_rtb_softlimit
) :
523 be64_to_cpu(ddq
->d_rtb_softlimit
);
524 if (hard
== 0 || hard
>= soft
) {
525 ddq
->d_rtb_hardlimit
= cpu_to_be64(hard
);
526 ddq
->d_rtb_softlimit
= cpu_to_be64(soft
);
528 q
->qi_rtbhardlimit
= hard
;
529 q
->qi_rtbsoftlimit
= soft
;
532 qdprintk("rtbhard %Ld < rtbsoft %Ld\n", hard
, soft
);
535 hard
= (newlim
->d_fieldmask
& FS_DQ_IHARD
) ?
536 (xfs_qcnt_t
) newlim
->d_ino_hardlimit
:
537 be64_to_cpu(ddq
->d_ino_hardlimit
);
538 soft
= (newlim
->d_fieldmask
& FS_DQ_ISOFT
) ?
539 (xfs_qcnt_t
) newlim
->d_ino_softlimit
:
540 be64_to_cpu(ddq
->d_ino_softlimit
);
541 if (hard
== 0 || hard
>= soft
) {
542 ddq
->d_ino_hardlimit
= cpu_to_be64(hard
);
543 ddq
->d_ino_softlimit
= cpu_to_be64(soft
);
545 q
->qi_ihardlimit
= hard
;
546 q
->qi_isoftlimit
= soft
;
549 qdprintk("ihard %Ld < isoft %Ld\n", hard
, soft
);
553 * Update warnings counter(s) if requested
555 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
556 ddq
->d_bwarns
= cpu_to_be16(newlim
->d_bwarns
);
557 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
558 ddq
->d_iwarns
= cpu_to_be16(newlim
->d_iwarns
);
559 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
560 ddq
->d_rtbwarns
= cpu_to_be16(newlim
->d_rtbwarns
);
564 * Timelimits for the super user set the relative time
565 * the other users can be over quota for this file system.
566 * If it is zero a default is used. Ditto for the default
567 * soft and hard limit values (already done, above), and
570 if (newlim
->d_fieldmask
& FS_DQ_BTIMER
) {
571 q
->qi_btimelimit
= newlim
->d_btimer
;
572 ddq
->d_btimer
= cpu_to_be32(newlim
->d_btimer
);
574 if (newlim
->d_fieldmask
& FS_DQ_ITIMER
) {
575 q
->qi_itimelimit
= newlim
->d_itimer
;
576 ddq
->d_itimer
= cpu_to_be32(newlim
->d_itimer
);
578 if (newlim
->d_fieldmask
& FS_DQ_RTBTIMER
) {
579 q
->qi_rtbtimelimit
= newlim
->d_rtbtimer
;
580 ddq
->d_rtbtimer
= cpu_to_be32(newlim
->d_rtbtimer
);
582 if (newlim
->d_fieldmask
& FS_DQ_BWARNS
)
583 q
->qi_bwarnlimit
= newlim
->d_bwarns
;
584 if (newlim
->d_fieldmask
& FS_DQ_IWARNS
)
585 q
->qi_iwarnlimit
= newlim
->d_iwarns
;
586 if (newlim
->d_fieldmask
& FS_DQ_RTBWARNS
)
587 q
->qi_rtbwarnlimit
= newlim
->d_rtbwarns
;
590 * If the user is now over quota, start the timelimit.
591 * The user will not be 'warned'.
592 * Note that we keep the timers ticking, whether enforcement
593 * is on or off. We don't really want to bother with iterating
594 * over all ondisk dquots and turning the timers on/off.
596 xfs_qm_adjust_dqtimers(mp
, ddq
);
598 dqp
->dq_flags
|= XFS_DQ_DIRTY
;
599 xfs_trans_log_dquot(tp
, dqp
);
601 error
= xfs_trans_commit(tp
, 0);
606 mutex_unlock(&q
->qi_quotaofflock
);
611 xfs_qm_scall_getquota(
615 fs_disk_quota_t
*out
)
621 * Try to get the dquot. We don't want it allocated on disk, so
622 * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't
623 * exist, we'll get ENOENT back.
625 if ((error
= xfs_qm_dqget(mp
, NULL
, id
, type
, 0, &dqp
))) {
630 * If everything's NULL, this dquot doesn't quite exist as far as
631 * our utility programs are concerned.
633 if (XFS_IS_DQUOT_UNINITIALIZED(dqp
)) {
635 return XFS_ERROR(ENOENT
);
637 /* xfs_qm_dqprint(dqp); */
639 * Convert the disk dquot to the exportable format
641 xfs_qm_export_dquot(mp
, &dqp
->q_core
, out
);
643 return (error
? XFS_ERROR(EFAULT
) : 0);
648 xfs_qm_log_quotaoff_end(
650 xfs_qoff_logitem_t
*startqoff
,
655 xfs_qoff_logitem_t
*qoffi
;
657 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF_END
);
659 if ((error
= xfs_trans_reserve(tp
, 0, sizeof(xfs_qoff_logitem_t
) * 2,
660 0, 0, XFS_DEFAULT_LOG_COUNT
))) {
661 xfs_trans_cancel(tp
, 0);
665 qoffi
= xfs_trans_get_qoff_item(tp
, startqoff
,
666 flags
& XFS_ALL_QUOTA_ACCT
);
667 xfs_trans_log_quotaoff_item(tp
, qoffi
);
670 * We have to make sure that the transaction is secure on disk before we
671 * return and actually stop quota accounting. So, make it synchronous.
672 * We don't care about quotoff's performance.
674 xfs_trans_set_sync(tp
);
675 error
= xfs_trans_commit(tp
, 0);
683 xfs_qoff_logitem_t
**qoffstartp
,
688 xfs_qoff_logitem_t
*qoffi
=NULL
;
691 tp
= xfs_trans_alloc(mp
, XFS_TRANS_QM_QUOTAOFF
);
692 if ((error
= xfs_trans_reserve(tp
, 0,
693 sizeof(xfs_qoff_logitem_t
) * 2 +
694 mp
->m_sb
.sb_sectsize
+ 128,
697 XFS_DEFAULT_LOG_COUNT
))) {
701 qoffi
= xfs_trans_get_qoff_item(tp
, NULL
, flags
& XFS_ALL_QUOTA_ACCT
);
702 xfs_trans_log_quotaoff_item(tp
, qoffi
);
704 spin_lock(&mp
->m_sb_lock
);
705 oldsbqflag
= mp
->m_sb
.sb_qflags
;
706 mp
->m_sb
.sb_qflags
= (mp
->m_qflags
& ~(flags
)) & XFS_MOUNT_QUOTA_ALL
;
707 spin_unlock(&mp
->m_sb_lock
);
709 xfs_mod_sb(tp
, XFS_SB_QFLAGS
);
712 * We have to make sure that the transaction is secure on disk before we
713 * return and actually stop quota accounting. So, make it synchronous.
714 * We don't care about quotoff's performance.
716 xfs_trans_set_sync(tp
);
717 error
= xfs_trans_commit(tp
, 0);
721 xfs_trans_cancel(tp
, 0);
723 * No one else is modifying sb_qflags, so this is OK.
724 * We still hold the quotaofflock.
726 spin_lock(&mp
->m_sb_lock
);
727 mp
->m_sb
.sb_qflags
= oldsbqflag
;
728 spin_unlock(&mp
->m_sb_lock
);
736 * Translate an internal style on-disk-dquot to the exportable format.
737 * The main differences are that the counters/limits are all in Basic
738 * Blocks (BBs) instead of the internal FSBs, and all on-disk data has
739 * to be converted to the native endianness.
744 xfs_disk_dquot_t
*src
,
745 struct fs_disk_quota
*dst
)
747 memset(dst
, 0, sizeof(*dst
));
748 dst
->d_version
= FS_DQUOT_VERSION
; /* different from src->d_version */
749 dst
->d_flags
= xfs_qm_export_qtype_flags(src
->d_flags
);
750 dst
->d_id
= be32_to_cpu(src
->d_id
);
751 dst
->d_blk_hardlimit
=
752 XFS_FSB_TO_BB(mp
, be64_to_cpu(src
->d_blk_hardlimit
));
753 dst
->d_blk_softlimit
=
754 XFS_FSB_TO_BB(mp
, be64_to_cpu(src
->d_blk_softlimit
));
755 dst
->d_ino_hardlimit
= be64_to_cpu(src
->d_ino_hardlimit
);
756 dst
->d_ino_softlimit
= be64_to_cpu(src
->d_ino_softlimit
);
757 dst
->d_bcount
= XFS_FSB_TO_BB(mp
, be64_to_cpu(src
->d_bcount
));
758 dst
->d_icount
= be64_to_cpu(src
->d_icount
);
759 dst
->d_btimer
= be32_to_cpu(src
->d_btimer
);
760 dst
->d_itimer
= be32_to_cpu(src
->d_itimer
);
761 dst
->d_iwarns
= be16_to_cpu(src
->d_iwarns
);
762 dst
->d_bwarns
= be16_to_cpu(src
->d_bwarns
);
763 dst
->d_rtb_hardlimit
=
764 XFS_FSB_TO_BB(mp
, be64_to_cpu(src
->d_rtb_hardlimit
));
765 dst
->d_rtb_softlimit
=
766 XFS_FSB_TO_BB(mp
, be64_to_cpu(src
->d_rtb_softlimit
));
767 dst
->d_rtbcount
= XFS_FSB_TO_BB(mp
, be64_to_cpu(src
->d_rtbcount
));
768 dst
->d_rtbtimer
= be32_to_cpu(src
->d_rtbtimer
);
769 dst
->d_rtbwarns
= be16_to_cpu(src
->d_rtbwarns
);
772 * Internally, we don't reset all the timers when quota enforcement
773 * gets turned off. No need to confuse the user level code,
774 * so return zeroes in that case.
776 if ((!XFS_IS_UQUOTA_ENFORCED(mp
) && src
->d_flags
== XFS_DQ_USER
) ||
777 (!XFS_IS_OQUOTA_ENFORCED(mp
) &&
778 (src
->d_flags
& (XFS_DQ_PROJ
| XFS_DQ_GROUP
)))) {
785 if (((XFS_IS_UQUOTA_ENFORCED(mp
) && dst
->d_flags
== XFS_USER_QUOTA
) ||
786 (XFS_IS_OQUOTA_ENFORCED(mp
) &&
787 (dst
->d_flags
& (XFS_PROJ_QUOTA
| XFS_GROUP_QUOTA
)))) &&
789 if (((int) dst
->d_bcount
>= (int) dst
->d_blk_softlimit
) &&
790 (dst
->d_blk_softlimit
> 0)) {
791 ASSERT(dst
->d_btimer
!= 0);
793 if (((int) dst
->d_icount
>= (int) dst
->d_ino_softlimit
) &&
794 (dst
->d_ino_softlimit
> 0)) {
795 ASSERT(dst
->d_itimer
!= 0);
802 xfs_qm_export_qtype_flags(
806 * Can't be more than one, or none.
808 ASSERT((flags
& (XFS_PROJ_QUOTA
| XFS_USER_QUOTA
)) !=
809 (XFS_PROJ_QUOTA
| XFS_USER_QUOTA
));
810 ASSERT((flags
& (XFS_PROJ_QUOTA
| XFS_GROUP_QUOTA
)) !=
811 (XFS_PROJ_QUOTA
| XFS_GROUP_QUOTA
));
812 ASSERT((flags
& (XFS_USER_QUOTA
| XFS_GROUP_QUOTA
)) !=
813 (XFS_USER_QUOTA
| XFS_GROUP_QUOTA
));
814 ASSERT((flags
& (XFS_PROJ_QUOTA
|XFS_USER_QUOTA
|XFS_GROUP_QUOTA
)) != 0);
816 return (flags
& XFS_DQ_USER
) ?
817 XFS_USER_QUOTA
: (flags
& XFS_DQ_PROJ
) ?
818 XFS_PROJ_QUOTA
: XFS_GROUP_QUOTA
;
828 if (flags
& XFS_UQUOTA_ACCT
)
829 uflags
|= XFS_QUOTA_UDQ_ACCT
;
830 if (flags
& XFS_PQUOTA_ACCT
)
831 uflags
|= XFS_QUOTA_PDQ_ACCT
;
832 if (flags
& XFS_GQUOTA_ACCT
)
833 uflags
|= XFS_QUOTA_GDQ_ACCT
;
834 if (flags
& XFS_UQUOTA_ENFD
)
835 uflags
|= XFS_QUOTA_UDQ_ENFD
;
836 if (flags
& (XFS_OQUOTA_ENFD
)) {
837 uflags
|= (flags
& XFS_GQUOTA_ACCT
) ?
838 XFS_QUOTA_GDQ_ENFD
: XFS_QUOTA_PDQ_ENFD
;
846 struct xfs_inode
*ip
,
847 struct xfs_perag
*pag
,
852 /* skip quota inodes */
853 if (ip
== ip
->i_mount
->m_quotainfo
->qi_uquotaip
||
854 ip
== ip
->i_mount
->m_quotainfo
->qi_gquotaip
) {
855 ASSERT(ip
->i_udquot
== NULL
);
856 ASSERT(ip
->i_gdquot
== NULL
);
857 read_unlock(&pag
->pag_ici_lock
);
861 error
= xfs_sync_inode_valid(ip
, pag
);
865 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
866 if ((flags
& XFS_UQUOTA_ACCT
) && ip
->i_udquot
) {
867 xfs_qm_dqrele(ip
->i_udquot
);
870 if (flags
& (XFS_PQUOTA_ACCT
|XFS_GQUOTA_ACCT
) && ip
->i_gdquot
) {
871 xfs_qm_dqrele(ip
->i_gdquot
);
874 xfs_iput(ip
, XFS_ILOCK_EXCL
);
881 * Go thru all the inodes in the file system, releasing their dquots.
883 * Note that the mount structure gets modified to indicate that quotas are off
884 * AFTER this, in the case of quotaoff.
887 xfs_qm_dqrele_all_inodes(
888 struct xfs_mount
*mp
,
891 ASSERT(mp
->m_quotainfo
);
892 xfs_inode_ag_iterator(mp
, xfs_dqrele_inode
, flags
,
893 XFS_ICI_NO_TAG
, 0, NULL
);
896 /*------------------------------------------------------------------------*/
899 * This contains all the test functions for XFS disk quotas.
900 * Currently it does a quota accounting check. ie. it walks through
901 * all inodes in the file system, calculating the dquot accounting fields,
902 * and prints out any inconsistencies.
904 xfs_dqhash_t
*qmtest_udqtab
;
905 xfs_dqhash_t
*qmtest_gdqtab
;
908 struct mutex qcheck_lock
;
910 #define DQTEST_HASHVAL(mp, id) (((__psunsigned_t)(mp) + \
911 (__psunsigned_t)(id)) & \
912 (qmtest_hashmask - 1))
914 #define DQTEST_HASH(mp, id, type) ((type & XFS_DQ_USER) ? \
916 DQTEST_HASHVAL(mp, id)) : \
918 DQTEST_HASHVAL(mp, id)))
920 #define DQTEST_LIST_PRINT(l, NXT, title) \
922 xfs_dqtest_t *dqp; int i = 0;\
923 cmn_err(CE_DEBUG, "%s (#%d)", title, (int) (l)->qh_nelems); \
924 for (dqp = (xfs_dqtest_t *)(l)->qh_next; dqp != NULL; \
925 dqp = (xfs_dqtest_t *)dqp->NXT) { \
926 cmn_err(CE_DEBUG, " %d. \"%d (%s)\" bcnt = %d, icnt = %d", \
927 ++i, dqp->d_id, DQFLAGTO_TYPESTR(dqp), \
928 dqp->d_bcount, dqp->d_icount); } \
931 typedef struct dqtest
{
932 uint dq_flags
; /* various flags (XFS_DQ_*) */
933 struct list_head q_hashlist
;
934 xfs_dqhash_t
*q_hash
; /* the hashchain header */
935 xfs_mount_t
*q_mount
; /* filesystem this relates to */
936 xfs_dqid_t d_id
; /* user id or group id */
937 xfs_qcnt_t d_bcount
; /* # disk blocks owned by the user */
938 xfs_qcnt_t d_icount
; /* # inodes owned by the user */
942 xfs_qm_hashinsert(xfs_dqhash_t
*h
, xfs_dqtest_t
*dqp
)
944 list_add(&dqp
->q_hashlist
, &h
->qh_list
);
952 cmn_err(CE_DEBUG
, "-----------DQTEST DQUOT----------------");
953 cmn_err(CE_DEBUG
, "---- dquot ID = %d", d
->d_id
);
954 cmn_err(CE_DEBUG
, "---- fs = 0x%p", d
->q_mount
);
955 cmn_err(CE_DEBUG
, "---- bcount = %Lu (0x%x)",
956 d
->d_bcount
, (int)d
->d_bcount
);
957 cmn_err(CE_DEBUG
, "---- icount = %Lu (0x%x)",
958 d
->d_icount
, (int)d
->d_icount
);
959 cmn_err(CE_DEBUG
, "---------------------------");
963 xfs_qm_dqtest_failed(
973 cmn_err(CE_DEBUG
, "quotacheck failed id=%d, err=%d\nreason: %s",
974 d
->d_id
, error
, reason
);
976 cmn_err(CE_DEBUG
, "quotacheck failed id=%d (%s) [%d != %d]",
977 d
->d_id
, reason
, (int)a
, (int)b
);
978 xfs_qm_dqtest_print(d
);
989 if (be64_to_cpu(dqp
->q_core
.d_icount
) != d
->d_icount
) {
990 xfs_qm_dqtest_failed(d
, dqp
, "icount mismatch",
991 be64_to_cpu(dqp
->q_core
.d_icount
),
995 if (be64_to_cpu(dqp
->q_core
.d_bcount
) != d
->d_bcount
) {
996 xfs_qm_dqtest_failed(d
, dqp
, "bcount mismatch",
997 be64_to_cpu(dqp
->q_core
.d_bcount
),
1001 if (dqp
->q_core
.d_blk_softlimit
&&
1002 be64_to_cpu(dqp
->q_core
.d_bcount
) >=
1003 be64_to_cpu(dqp
->q_core
.d_blk_softlimit
)) {
1004 if (!dqp
->q_core
.d_btimer
&& dqp
->q_core
.d_id
) {
1006 "%d [%s] [0x%p] BLK TIMER NOT STARTED",
1007 d
->d_id
, DQFLAGTO_TYPESTR(d
), d
->q_mount
);
1011 if (dqp
->q_core
.d_ino_softlimit
&&
1012 be64_to_cpu(dqp
->q_core
.d_icount
) >=
1013 be64_to_cpu(dqp
->q_core
.d_ino_softlimit
)) {
1014 if (!dqp
->q_core
.d_itimer
&& dqp
->q_core
.d_id
) {
1016 "%d [%s] [0x%p] INO TIMER NOT STARTED",
1017 d
->d_id
, DQFLAGTO_TYPESTR(d
), d
->q_mount
);
1023 cmn_err(CE_DEBUG
, "%d [%s] [0x%p] qchecked",
1024 d
->d_id
, DQFLAGTO_TYPESTR(d
), d
->q_mount
);
1037 /* xfs_qm_dqtest_print(d); */
1038 if ((error
= xfs_qm_dqget(d
->q_mount
, NULL
, d
->d_id
, d
->dq_flags
, 0,
1040 xfs_qm_dqtest_failed(d
, NULL
, "dqget failed", 0, 0, error
);
1043 xfs_dqtest_cmp2(d
, dqp
);
1048 xfs_qm_internalqcheck_dqget(
1052 xfs_dqtest_t
**O_dq
)
1057 h
= DQTEST_HASH(mp
, id
, type
);
1058 list_for_each_entry(d
, &h
->qh_list
, q_hashlist
) {
1059 if (d
->d_id
== id
&& mp
== d
->q_mount
) {
1064 d
= kmem_zalloc(sizeof(xfs_dqtest_t
), KM_SLEEP
);
1069 INIT_LIST_HEAD(&d
->q_hashlist
);
1070 xfs_qm_hashinsert(h
, d
);
1076 xfs_qm_internalqcheck_get_dquots(
1084 if (XFS_IS_UQUOTA_ON(mp
))
1085 xfs_qm_internalqcheck_dqget(mp
, uid
, XFS_DQ_USER
, ud
);
1086 if (XFS_IS_GQUOTA_ON(mp
))
1087 xfs_qm_internalqcheck_dqget(mp
, gid
, XFS_DQ_GROUP
, gd
);
1088 else if (XFS_IS_PQUOTA_ON(mp
))
1089 xfs_qm_internalqcheck_dqget(mp
, projid
, XFS_DQ_PROJ
, gd
);
1094 xfs_qm_internalqcheck_dqadjust(
1099 d
->d_bcount
+= (xfs_qcnt_t
)ip
->i_d
.di_nblocks
;
1103 xfs_qm_internalqcheck_adjust(
1104 xfs_mount_t
*mp
, /* mount point for filesystem */
1105 xfs_ino_t ino
, /* inode number to get data for */
1106 void __user
*buffer
, /* not used */
1107 int ubsize
, /* not used */
1108 void *private_data
, /* not used */
1109 xfs_daddr_t bno
, /* starting block of inode cluster */
1110 int *ubused
, /* not used */
1111 void *dip
, /* not used */
1112 int *res
) /* bulkstat result code */
1115 xfs_dqtest_t
*ud
, *gd
;
1117 boolean_t ipreleased
;
1120 ASSERT(XFS_IS_QUOTA_RUNNING(mp
));
1122 if (ino
== mp
->m_sb
.sb_uquotino
|| ino
== mp
->m_sb
.sb_gquotino
) {
1123 *res
= BULKSTAT_RV_NOTHING
;
1124 qdprintk("internalqcheck: ino=%llu, uqino=%llu, gqino=%llu\n",
1125 (unsigned long long) ino
,
1126 (unsigned long long) mp
->m_sb
.sb_uquotino
,
1127 (unsigned long long) mp
->m_sb
.sb_gquotino
);
1128 return XFS_ERROR(EINVAL
);
1130 ipreleased
= B_FALSE
;
1132 lock_flags
= XFS_ILOCK_SHARED
;
1133 if ((error
= xfs_iget(mp
, NULL
, ino
, 0, lock_flags
, &ip
, bno
))) {
1134 *res
= BULKSTAT_RV_NOTHING
;
1139 * This inode can have blocks after eof which can get released
1140 * when we send it to inactive. Since we don't check the dquot
1141 * until the after all our calculations are done, we must get rid
1145 xfs_iput(ip
, lock_flags
);
1146 ipreleased
= B_TRUE
;
1149 xfs_qm_internalqcheck_get_dquots(mp
,
1150 (xfs_dqid_t
) ip
->i_d
.di_uid
,
1151 (xfs_dqid_t
) ip
->i_d
.di_projid
,
1152 (xfs_dqid_t
) ip
->i_d
.di_gid
,
1154 if (XFS_IS_UQUOTA_ON(mp
)) {
1156 xfs_qm_internalqcheck_dqadjust(ip
, ud
);
1158 if (XFS_IS_OQUOTA_ON(mp
)) {
1160 xfs_qm_internalqcheck_dqadjust(ip
, gd
);
1162 xfs_iput(ip
, lock_flags
);
1163 *res
= BULKSTAT_RV_DIDONE
;
1168 /* PRIVATE, debugging */
1170 xfs_qm_internalqcheck(
1179 qmtest_hashmask
= 32;
1184 if (! XFS_IS_QUOTA_ON(mp
))
1185 return XFS_ERROR(ESRCH
);
1187 xfs_log_force(mp
, XFS_LOG_SYNC
);
1188 XFS_bflush(mp
->m_ddev_targp
);
1189 xfs_log_force(mp
, XFS_LOG_SYNC
);
1190 XFS_bflush(mp
->m_ddev_targp
);
1192 mutex_lock(&qcheck_lock
);
1193 /* There should be absolutely no quota activity while this
1195 qmtest_udqtab
= kmem_zalloc(qmtest_hashmask
*
1196 sizeof(xfs_dqhash_t
), KM_SLEEP
);
1197 qmtest_gdqtab
= kmem_zalloc(qmtest_hashmask
*
1198 sizeof(xfs_dqhash_t
), KM_SLEEP
);
1201 * Iterate thru all the inodes in the file system,
1202 * adjusting the corresponding dquot counters
1204 if ((error
= xfs_bulkstat(mp
, &lastino
, &count
,
1205 xfs_qm_internalqcheck_adjust
, NULL
,
1206 0, NULL
, BULKSTAT_FG_IGET
, &done
))) {
1211 cmn_err(CE_DEBUG
, "Bulkstat returned error 0x%x", error
);
1213 cmn_err(CE_DEBUG
, "Checking results against system dquots");
1214 for (i
= 0; i
< qmtest_hashmask
; i
++) {
1215 xfs_dqtest_t
*d
, *n
;
1218 h
= &qmtest_udqtab
[i
];
1219 list_for_each_entry_safe(d
, n
, &h
->qh_list
, q_hashlist
) {
1223 h
= &qmtest_gdqtab
[i
];
1224 list_for_each_entry_safe(d
, n
, &h
->qh_list
, q_hashlist
) {
1230 if (qmtest_nfails
) {
1231 cmn_err(CE_DEBUG
, "******** quotacheck failed ********");
1232 cmn_err(CE_DEBUG
, "failures = %d", qmtest_nfails
);
1234 cmn_err(CE_DEBUG
, "******** quotacheck successful! ********");
1236 kmem_free(qmtest_udqtab
);
1237 kmem_free(qmtest_gdqtab
);
1238 mutex_unlock(&qcheck_lock
);
1239 return (qmtest_nfails
);