2 * Copyright (c) 2000-2006 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
21 #include "xfs_types.h"
25 #include "xfs_trans.h"
30 #include "xfs_dmapi.h"
31 #include "xfs_mount.h"
32 #include "xfs_da_btree.h"
33 #include "xfs_bmap_btree.h"
34 #include "xfs_alloc_btree.h"
35 #include "xfs_ialloc_btree.h"
36 #include "xfs_dir_sf.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_inode_item.h"
42 #include "xfs_dir_leaf.h"
43 #include "xfs_itable.h"
44 #include "xfs_btree.h"
45 #include "xfs_ialloc.h"
46 #include "xfs_alloc.h"
50 #include "xfs_error.h"
51 #include "xfs_quota.h"
52 #include "xfs_utils.h"
53 #include "xfs_rtalloc.h"
54 #include "xfs_refcache.h"
55 #include "xfs_trans_space.h"
56 #include "xfs_log_priv.h"
65 bhv_vnode_t
*vp
= BHV_TO_VNODE(bdp
);
66 xfs_inode_t
*ip
= XFS_BHVTOI(bdp
);
68 if (XFS_FORCED_SHUTDOWN(ip
->i_mount
))
69 return XFS_ERROR(EIO
);
72 * If it's a directory with any blocks, read-ahead block 0
73 * as we're almost certain to have the next operation be a read there.
75 if (VN_ISDIR(vp
) && ip
->i_d
.di_nextents
> 0) {
76 mode
= xfs_ilock_map_shared(ip
);
77 if (ip
->i_d
.di_nextents
> 0)
78 (void)xfs_da_reada_buf(NULL
, ip
, 0, XFS_DATA_FORK
);
79 xfs_iunlock(ip
, mode
);
88 lastclose_t lastclose
,
91 bhv_vnode_t
*vp
= BHV_TO_VNODE(bdp
);
92 xfs_inode_t
*ip
= XFS_BHVTOI(bdp
);
94 if (XFS_FORCED_SHUTDOWN(ip
->i_mount
))
95 return XFS_ERROR(EIO
);
97 if (lastclose
!= L_TRUE
|| !VN_ISREG(vp
))
101 * If we previously truncated this file and removed old data in
102 * the process, we want to initiate "early" writeout on the last
103 * close. This is an attempt to combat the notorious NULL files
104 * problem which is particularly noticable from a truncate down,
105 * buffered (re-)write (delalloc), followed by a crash. What we
106 * are effectively doing here is significantly reducing the time
107 * window where we'd otherwise be exposed to that problem.
109 if (VUNTRUNCATE(vp
) && VN_DIRTY(vp
) && ip
->i_delayed_blks
> 0)
110 return bhv_vop_flush_pages(vp
, 0, -1, XFS_B_ASYNC
, FI_NONE
);
128 vp
= BHV_TO_VNODE(bdp
);
129 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
131 ip
= XFS_BHVTOI(bdp
);
134 if (XFS_FORCED_SHUTDOWN(mp
))
135 return XFS_ERROR(EIO
);
137 if (!(flags
& ATTR_LAZY
))
138 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
140 vap
->va_size
= ip
->i_d
.di_size
;
141 if (vap
->va_mask
== XFS_AT_SIZE
)
145 XFS_FSB_TO_BB(mp
, ip
->i_d
.di_nblocks
+ ip
->i_delayed_blks
);
146 vap
->va_nodeid
= ip
->i_ino
;
148 vap
->va_nodeid
+= mp
->m_inoadd
;
150 vap
->va_nlink
= ip
->i_d
.di_nlink
;
153 * Quick exit for non-stat callers
156 ~(XFS_AT_SIZE
|XFS_AT_FSID
|XFS_AT_NODEID
|
157 XFS_AT_NLINK
|XFS_AT_BLKSIZE
)) == 0)
161 * Copy from in-core inode.
163 vap
->va_mode
= ip
->i_d
.di_mode
;
164 vap
->va_uid
= ip
->i_d
.di_uid
;
165 vap
->va_gid
= ip
->i_d
.di_gid
;
166 vap
->va_projid
= ip
->i_d
.di_projid
;
169 * Check vnode type block/char vs. everything else.
171 switch (ip
->i_d
.di_mode
& S_IFMT
) {
174 vap
->va_rdev
= ip
->i_df
.if_u2
.if_rdev
;
175 vap
->va_blocksize
= BLKDEV_IOSIZE
;
180 if (!(ip
->i_d
.di_flags
& XFS_DIFLAG_REALTIME
)) {
181 vap
->va_blocksize
= xfs_preferred_iosize(mp
);
185 * If the file blocks are being allocated from a
186 * realtime partition, then return the inode's
187 * realtime extent size or the realtime volume's
190 vap
->va_blocksize
= ip
->i_d
.di_extsize
?
191 (ip
->i_d
.di_extsize
<< mp
->m_sb
.sb_blocklog
) :
192 (mp
->m_sb
.sb_rextsize
<< mp
->m_sb
.sb_blocklog
);
197 vn_atime_to_timespec(vp
, &vap
->va_atime
);
198 vap
->va_mtime
.tv_sec
= ip
->i_d
.di_mtime
.t_sec
;
199 vap
->va_mtime
.tv_nsec
= ip
->i_d
.di_mtime
.t_nsec
;
200 vap
->va_ctime
.tv_sec
= ip
->i_d
.di_ctime
.t_sec
;
201 vap
->va_ctime
.tv_nsec
= ip
->i_d
.di_ctime
.t_nsec
;
204 * Exit for stat callers. See if any of the rest of the fields
205 * to be filled in are needed.
208 (XFS_AT_XFLAGS
|XFS_AT_EXTSIZE
|XFS_AT_NEXTENTS
|XFS_AT_ANEXTENTS
|
209 XFS_AT_GENCOUNT
|XFS_AT_VCODE
)) == 0)
213 * Convert di_flags to xflags.
215 vap
->va_xflags
= xfs_ip2xflags(ip
);
218 * Exit for inode revalidate. See if any of the rest of
219 * the fields to be filled in are needed.
222 (XFS_AT_EXTSIZE
|XFS_AT_NEXTENTS
|XFS_AT_ANEXTENTS
|
223 XFS_AT_GENCOUNT
|XFS_AT_VCODE
)) == 0)
226 vap
->va_extsize
= ip
->i_d
.di_extsize
<< mp
->m_sb
.sb_blocklog
;
228 (ip
->i_df
.if_flags
& XFS_IFEXTENTS
) ?
229 ip
->i_df
.if_bytes
/ sizeof(xfs_bmbt_rec_t
) :
233 (ip
->i_afp
->if_flags
& XFS_IFEXTENTS
) ?
234 ip
->i_afp
->if_bytes
/ sizeof(xfs_bmbt_rec_t
) :
235 ip
->i_d
.di_anextents
;
237 vap
->va_anextents
= 0;
238 vap
->va_gen
= ip
->i_d
.di_gen
;
241 if (!(flags
& ATTR_LAZY
))
242 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
268 xfs_prid_t projid
=0, iprojid
=0;
269 int mandlock_before
, mandlock_after
;
270 struct xfs_dquot
*udqp
, *gdqp
, *olddquot1
, *olddquot2
;
274 vp
= BHV_TO_VNODE(bdp
);
275 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
277 if (vp
->v_vfsp
->vfs_flag
& VFS_RDONLY
)
278 return XFS_ERROR(EROFS
);
281 * Cannot set certain attributes.
284 if (mask
& XFS_AT_NOSET
) {
285 return XFS_ERROR(EINVAL
);
288 ip
= XFS_BHVTOI(bdp
);
291 if (XFS_FORCED_SHUTDOWN(mp
))
292 return XFS_ERROR(EIO
);
295 * Timestamps do not need to be logged and hence do not
296 * need to be done within a transaction.
298 if (mask
& XFS_AT_UPDTIMES
) {
299 ASSERT((mask
& ~XFS_AT_UPDTIMES
) == 0);
300 timeflags
= ((mask
& XFS_AT_UPDATIME
) ? XFS_ICHGTIME_ACC
: 0) |
301 ((mask
& XFS_AT_UPDCTIME
) ? XFS_ICHGTIME_CHG
: 0) |
302 ((mask
& XFS_AT_UPDMTIME
) ? XFS_ICHGTIME_MOD
: 0);
303 xfs_ichgtime(ip
, timeflags
);
307 olddquot1
= olddquot2
= NULL
;
311 * If disk quotas is on, we make sure that the dquots do exist on disk,
312 * before we start any other transactions. Trying to do this later
313 * is messy. We don't care to take a readlock to look at the ids
314 * in inode here, because we can't hold it across the trans_reserve.
315 * If the IDs do change before we take the ilock, we're covered
316 * because the i_*dquot fields will get updated anyway.
318 if (XFS_IS_QUOTA_ON(mp
) &&
319 (mask
& (XFS_AT_UID
|XFS_AT_GID
|XFS_AT_PROJID
))) {
322 if ((mask
& XFS_AT_UID
) && XFS_IS_UQUOTA_ON(mp
)) {
324 qflags
|= XFS_QMOPT_UQUOTA
;
326 uid
= ip
->i_d
.di_uid
;
328 if ((mask
& XFS_AT_GID
) && XFS_IS_GQUOTA_ON(mp
)) {
330 qflags
|= XFS_QMOPT_GQUOTA
;
332 gid
= ip
->i_d
.di_gid
;
334 if ((mask
& XFS_AT_PROJID
) && XFS_IS_PQUOTA_ON(mp
)) {
335 projid
= vap
->va_projid
;
336 qflags
|= XFS_QMOPT_PQUOTA
;
338 projid
= ip
->i_d
.di_projid
;
341 * We take a reference when we initialize udqp and gdqp,
342 * so it is important that we never blindly double trip on
343 * the same variable. See xfs_create() for an example.
345 ASSERT(udqp
== NULL
);
346 ASSERT(gdqp
== NULL
);
347 code
= XFS_QM_DQVOPALLOC(mp
, ip
, uid
, gid
, projid
, qflags
,
354 * For the other attributes, we acquire the inode lock and
355 * first do an error checking pass.
358 lock_flags
= XFS_ILOCK_EXCL
;
359 if (flags
& ATTR_NOLOCK
)
361 if (!(mask
& XFS_AT_SIZE
)) {
362 if ((mask
!= (XFS_AT_CTIME
|XFS_AT_ATIME
|XFS_AT_MTIME
)) ||
363 (mp
->m_flags
& XFS_MOUNT_WSYNC
)) {
364 tp
= xfs_trans_alloc(mp
, XFS_TRANS_SETATTR_NOT_SIZE
);
366 if ((code
= xfs_trans_reserve(tp
, 0,
367 XFS_ICHANGE_LOG_RES(mp
), 0,
374 if (DM_EVENT_ENABLED (vp
->v_vfsp
, ip
, DM_EVENT_TRUNCATE
) &&
375 !(flags
& ATTR_DMI
)) {
376 int dmflags
= AT_DELAY_FLAG(flags
) | DM_SEM_FLAG_WR
;
377 code
= XFS_SEND_DATA(mp
, DM_EVENT_TRUNCATE
, vp
,
378 vap
->va_size
, 0, dmflags
, NULL
);
385 lock_flags
|= XFS_IOLOCK_EXCL
;
388 xfs_ilock(ip
, lock_flags
);
390 /* boolean: are we the file owner? */
391 file_owner
= (current_fsuid(credp
) == ip
->i_d
.di_uid
);
394 * Change various properties of a file.
395 * Only the owner or users with CAP_FOWNER
396 * capability may do these things.
399 (XFS_AT_MODE
|XFS_AT_XFLAGS
|XFS_AT_EXTSIZE
|XFS_AT_UID
|
400 XFS_AT_GID
|XFS_AT_PROJID
)) {
402 * CAP_FOWNER overrides the following restrictions:
404 * The user ID of the calling process must be equal
405 * to the file owner ID, except in cases where the
406 * CAP_FSETID capability is applicable.
408 if (!file_owner
&& !capable(CAP_FOWNER
)) {
409 code
= XFS_ERROR(EPERM
);
414 * CAP_FSETID overrides the following restrictions:
416 * The effective user ID of the calling process shall match
417 * the file owner when setting the set-user-ID and
418 * set-group-ID bits on that file.
420 * The effective group ID or one of the supplementary group
421 * IDs of the calling process shall match the group owner of
422 * the file when setting the set-group-ID bit on that file
424 if (mask
& XFS_AT_MODE
) {
427 if ((vap
->va_mode
& S_ISUID
) && !file_owner
)
429 if ((vap
->va_mode
& S_ISGID
) &&
430 !in_group_p((gid_t
)ip
->i_d
.di_gid
))
433 /* Linux allows this, Irix doesn't. */
434 if ((vap
->va_mode
& S_ISVTX
) && !VN_ISDIR(vp
))
437 if (m
&& !capable(CAP_FSETID
))
443 * Change file ownership. Must be the owner or privileged.
444 * If the system was configured with the "restricted_chown"
445 * option, the owner is not permitted to give away the file,
446 * and can change the group id only to a group of which he
447 * or she is a member.
449 if (mask
& (XFS_AT_UID
|XFS_AT_GID
|XFS_AT_PROJID
)) {
451 * These IDs could have changed since we last looked at them.
452 * But, we're assured that if the ownership did change
453 * while we didn't have the inode locked, inode's dquot(s)
454 * would have changed also.
456 iuid
= ip
->i_d
.di_uid
;
457 iprojid
= ip
->i_d
.di_projid
;
458 igid
= ip
->i_d
.di_gid
;
459 gid
= (mask
& XFS_AT_GID
) ? vap
->va_gid
: igid
;
460 uid
= (mask
& XFS_AT_UID
) ? vap
->va_uid
: iuid
;
461 projid
= (mask
& XFS_AT_PROJID
) ? (xfs_prid_t
)vap
->va_projid
:
465 * CAP_CHOWN overrides the following restrictions:
467 * If _POSIX_CHOWN_RESTRICTED is defined, this capability
468 * shall override the restriction that a process cannot
469 * change the user ID of a file it owns and the restriction
470 * that the group ID supplied to the chown() function
471 * shall be equal to either the group ID or one of the
472 * supplementary group IDs of the calling process.
474 if (restricted_chown
&&
475 (iuid
!= uid
|| (igid
!= gid
&&
476 !in_group_p((gid_t
)gid
))) &&
477 !capable(CAP_CHOWN
)) {
478 code
= XFS_ERROR(EPERM
);
482 * Do a quota reservation only if uid/projid/gid is actually
485 if ((XFS_IS_UQUOTA_ON(mp
) && iuid
!= uid
) ||
486 (XFS_IS_PQUOTA_ON(mp
) && iprojid
!= projid
) ||
487 (XFS_IS_GQUOTA_ON(mp
) && igid
!= gid
)) {
489 code
= XFS_QM_DQVOPCHOWNRESV(mp
, tp
, ip
, udqp
, gdqp
,
490 capable(CAP_FOWNER
) ?
491 XFS_QMOPT_FORCE_RES
: 0);
492 if (code
) /* out of quota */
498 * Truncate file. Must have write permission and not be a directory.
500 if (mask
& XFS_AT_SIZE
) {
501 /* Short circuit the truncate case for zero length files */
502 if ((vap
->va_size
== 0) &&
503 (ip
->i_d
.di_size
== 0) && (ip
->i_d
.di_nextents
== 0)) {
504 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
505 lock_flags
&= ~XFS_ILOCK_EXCL
;
506 if (mask
& XFS_AT_CTIME
)
507 xfs_ichgtime(ip
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
513 code
= XFS_ERROR(EISDIR
);
515 } else if (!VN_ISREG(vp
)) {
516 code
= XFS_ERROR(EINVAL
);
520 * Make sure that the dquots are attached to the inode.
522 if ((code
= XFS_QM_DQATTACH(mp
, ip
, XFS_QMOPT_ILOCKED
)))
527 * Change file access or modified times.
529 if (mask
& (XFS_AT_ATIME
|XFS_AT_MTIME
)) {
531 if ((flags
& ATTR_UTIME
) &&
532 !capable(CAP_FOWNER
)) {
533 code
= XFS_ERROR(EPERM
);
540 * Change extent size or realtime flag.
542 if (mask
& (XFS_AT_EXTSIZE
|XFS_AT_XFLAGS
)) {
544 * Can't change extent size if any extents are allocated.
546 if (ip
->i_d
.di_nextents
&& (mask
& XFS_AT_EXTSIZE
) &&
547 ((ip
->i_d
.di_extsize
<< mp
->m_sb
.sb_blocklog
) !=
549 code
= XFS_ERROR(EINVAL
); /* EFBIG? */
554 * Can't change realtime flag if any extents are allocated.
556 if ((ip
->i_d
.di_nextents
|| ip
->i_delayed_blks
) &&
557 (mask
& XFS_AT_XFLAGS
) &&
558 (ip
->i_d
.di_flags
& XFS_DIFLAG_REALTIME
) !=
559 (vap
->va_xflags
& XFS_XFLAG_REALTIME
)) {
560 code
= XFS_ERROR(EINVAL
); /* EFBIG? */
564 * Extent size must be a multiple of the appropriate block
565 * size, if set at all.
567 if ((mask
& XFS_AT_EXTSIZE
) && vap
->va_extsize
!= 0) {
570 if ((ip
->i_d
.di_flags
& XFS_DIFLAG_REALTIME
) ||
571 ((mask
& XFS_AT_XFLAGS
) &&
572 (vap
->va_xflags
& XFS_XFLAG_REALTIME
))) {
573 size
= mp
->m_sb
.sb_rextsize
<<
574 mp
->m_sb
.sb_blocklog
;
576 size
= mp
->m_sb
.sb_blocksize
;
578 if (vap
->va_extsize
% size
) {
579 code
= XFS_ERROR(EINVAL
);
584 * If realtime flag is set then must have realtime data.
586 if ((mask
& XFS_AT_XFLAGS
) &&
587 (vap
->va_xflags
& XFS_XFLAG_REALTIME
)) {
588 if ((mp
->m_sb
.sb_rblocks
== 0) ||
589 (mp
->m_sb
.sb_rextsize
== 0) ||
590 (ip
->i_d
.di_extsize
% mp
->m_sb
.sb_rextsize
)) {
591 code
= XFS_ERROR(EINVAL
);
597 * Can't modify an immutable/append-only file unless
598 * we have appropriate permission.
600 if ((mask
& XFS_AT_XFLAGS
) &&
602 (XFS_DIFLAG_IMMUTABLE
|XFS_DIFLAG_APPEND
) ||
604 (XFS_XFLAG_IMMUTABLE
| XFS_XFLAG_APPEND
))) &&
605 !capable(CAP_LINUX_IMMUTABLE
)) {
606 code
= XFS_ERROR(EPERM
);
612 * Now we can make the changes. Before we join the inode
613 * to the transaction, if XFS_AT_SIZE is set then take care of
614 * the part of the truncation that must be done without the
615 * inode lock. This needs to be done before joining the inode
616 * to the transaction, because the inode cannot be unlocked
617 * once it is a part of the transaction.
619 if (mask
& XFS_AT_SIZE
) {
621 if ((vap
->va_size
> ip
->i_d
.di_size
) &&
622 (flags
& ATTR_NOSIZETOK
) == 0) {
623 code
= xfs_igrow_start(ip
, vap
->va_size
, credp
);
625 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
626 vn_iowait(vp
); /* wait for the completion of any pending DIOs */
628 code
= xfs_itruncate_data(ip
, vap
->va_size
);
631 lock_flags
&= ~XFS_ILOCK_EXCL
;
632 ASSERT(lock_flags
== XFS_IOLOCK_EXCL
);
635 tp
= xfs_trans_alloc(mp
, XFS_TRANS_SETATTR_SIZE
);
636 if ((code
= xfs_trans_reserve(tp
, 0,
637 XFS_ITRUNCATE_LOG_RES(mp
), 0,
638 XFS_TRANS_PERM_LOG_RES
,
639 XFS_ITRUNCATE_LOG_COUNT
))) {
640 xfs_trans_cancel(tp
, 0);
642 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
645 commit_flags
= XFS_TRANS_RELEASE_LOG_RES
;
646 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
650 xfs_trans_ijoin(tp
, ip
, lock_flags
);
651 xfs_trans_ihold(tp
, ip
);
654 /* determine whether mandatory locking mode changes */
655 mandlock_before
= MANDLOCK(vp
, ip
->i_d
.di_mode
);
658 * Truncate file. Must have write permission and not be a directory.
660 if (mask
& XFS_AT_SIZE
) {
661 if (vap
->va_size
> ip
->i_d
.di_size
) {
662 xfs_igrow_finish(tp
, ip
, vap
->va_size
,
663 !(flags
& ATTR_DMI
));
664 } else if ((vap
->va_size
<= ip
->i_d
.di_size
) ||
665 ((vap
->va_size
== 0) && ip
->i_d
.di_nextents
)) {
667 * signal a sync transaction unless
668 * we're truncating an already unlinked
669 * file on a wsync filesystem
671 code
= xfs_itruncate_finish(&tp
, ip
,
672 (xfs_fsize_t
)vap
->va_size
,
674 ((ip
->i_d
.di_nlink
!= 0 ||
675 !(mp
->m_flags
& XFS_MOUNT_WSYNC
))
680 * Truncated "down", so we're removing references
681 * to old data here - if we now delay flushing for
682 * a long time, we expose ourselves unduly to the
683 * notorious NULL files problem. So, we mark this
684 * vnode and flush it when the file is closed, and
685 * do not wait the usual (long) time for writeout.
690 * Have to do this even if the file's size doesn't change.
692 timeflags
|= XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
;
696 * Change file access modes.
698 if (mask
& XFS_AT_MODE
) {
699 ip
->i_d
.di_mode
&= S_IFMT
;
700 ip
->i_d
.di_mode
|= vap
->va_mode
& ~S_IFMT
;
702 xfs_trans_log_inode (tp
, ip
, XFS_ILOG_CORE
);
703 timeflags
|= XFS_ICHGTIME_CHG
;
707 * Change file ownership. Must be the owner or privileged.
708 * If the system was configured with the "restricted_chown"
709 * option, the owner is not permitted to give away the file,
710 * and can change the group id only to a group of which he
711 * or she is a member.
713 if (mask
& (XFS_AT_UID
|XFS_AT_GID
|XFS_AT_PROJID
)) {
715 * CAP_FSETID overrides the following restrictions:
717 * The set-user-ID and set-group-ID bits of a file will be
718 * cleared upon successful return from chown()
720 if ((ip
->i_d
.di_mode
& (S_ISUID
|S_ISGID
)) &&
721 !capable(CAP_FSETID
)) {
722 ip
->i_d
.di_mode
&= ~(S_ISUID
|S_ISGID
);
726 * Change the ownerships and register quota modifications
727 * in the transaction.
730 if (XFS_IS_UQUOTA_ON(mp
)) {
731 ASSERT(mask
& XFS_AT_UID
);
733 olddquot1
= XFS_QM_DQVOPCHOWN(mp
, tp
, ip
,
734 &ip
->i_udquot
, udqp
);
736 ip
->i_d
.di_uid
= uid
;
739 if (XFS_IS_GQUOTA_ON(mp
)) {
740 ASSERT(!XFS_IS_PQUOTA_ON(mp
));
741 ASSERT(mask
& XFS_AT_GID
);
743 olddquot2
= XFS_QM_DQVOPCHOWN(mp
, tp
, ip
,
744 &ip
->i_gdquot
, gdqp
);
746 ip
->i_d
.di_gid
= gid
;
748 if (iprojid
!= projid
) {
749 if (XFS_IS_PQUOTA_ON(mp
)) {
750 ASSERT(!XFS_IS_GQUOTA_ON(mp
));
751 ASSERT(mask
& XFS_AT_PROJID
);
753 olddquot2
= XFS_QM_DQVOPCHOWN(mp
, tp
, ip
,
754 &ip
->i_gdquot
, gdqp
);
756 ip
->i_d
.di_projid
= projid
;
758 * We may have to rev the inode as well as
759 * the superblock version number since projids didn't
760 * exist before DINODE_VERSION_2 and SB_VERSION_NLINK.
762 if (ip
->i_d
.di_version
== XFS_DINODE_VERSION_1
)
763 xfs_bump_ino_vers2(tp
, ip
);
766 xfs_trans_log_inode (tp
, ip
, XFS_ILOG_CORE
);
767 timeflags
|= XFS_ICHGTIME_CHG
;
772 * Change file access or modified times.
774 if (mask
& (XFS_AT_ATIME
|XFS_AT_MTIME
)) {
775 if (mask
& XFS_AT_ATIME
) {
776 ip
->i_d
.di_atime
.t_sec
= vap
->va_atime
.tv_sec
;
777 ip
->i_d
.di_atime
.t_nsec
= vap
->va_atime
.tv_nsec
;
778 ip
->i_update_core
= 1;
779 timeflags
&= ~XFS_ICHGTIME_ACC
;
781 if (mask
& XFS_AT_MTIME
) {
782 ip
->i_d
.di_mtime
.t_sec
= vap
->va_mtime
.tv_sec
;
783 ip
->i_d
.di_mtime
.t_nsec
= vap
->va_mtime
.tv_nsec
;
784 timeflags
&= ~XFS_ICHGTIME_MOD
;
785 timeflags
|= XFS_ICHGTIME_CHG
;
787 if (tp
&& (flags
& ATTR_UTIME
))
788 xfs_trans_log_inode (tp
, ip
, XFS_ILOG_CORE
);
792 * Change XFS-added attributes.
794 if (mask
& (XFS_AT_EXTSIZE
|XFS_AT_XFLAGS
)) {
795 if (mask
& XFS_AT_EXTSIZE
) {
797 * Converting bytes to fs blocks.
799 ip
->i_d
.di_extsize
= vap
->va_extsize
>>
800 mp
->m_sb
.sb_blocklog
;
802 if (mask
& XFS_AT_XFLAGS
) {
805 /* can't set PREALLOC this way, just preserve it */
806 di_flags
= (ip
->i_d
.di_flags
& XFS_DIFLAG_PREALLOC
);
807 if (vap
->va_xflags
& XFS_XFLAG_IMMUTABLE
)
808 di_flags
|= XFS_DIFLAG_IMMUTABLE
;
809 if (vap
->va_xflags
& XFS_XFLAG_APPEND
)
810 di_flags
|= XFS_DIFLAG_APPEND
;
811 if (vap
->va_xflags
& XFS_XFLAG_SYNC
)
812 di_flags
|= XFS_DIFLAG_SYNC
;
813 if (vap
->va_xflags
& XFS_XFLAG_NOATIME
)
814 di_flags
|= XFS_DIFLAG_NOATIME
;
815 if (vap
->va_xflags
& XFS_XFLAG_NODUMP
)
816 di_flags
|= XFS_DIFLAG_NODUMP
;
817 if (vap
->va_xflags
& XFS_XFLAG_PROJINHERIT
)
818 di_flags
|= XFS_DIFLAG_PROJINHERIT
;
819 if (vap
->va_xflags
& XFS_XFLAG_NODEFRAG
)
820 di_flags
|= XFS_DIFLAG_NODEFRAG
;
821 if ((ip
->i_d
.di_mode
& S_IFMT
) == S_IFDIR
) {
822 if (vap
->va_xflags
& XFS_XFLAG_RTINHERIT
)
823 di_flags
|= XFS_DIFLAG_RTINHERIT
;
824 if (vap
->va_xflags
& XFS_XFLAG_NOSYMLINKS
)
825 di_flags
|= XFS_DIFLAG_NOSYMLINKS
;
826 if (vap
->va_xflags
& XFS_XFLAG_EXTSZINHERIT
)
827 di_flags
|= XFS_DIFLAG_EXTSZINHERIT
;
828 } else if ((ip
->i_d
.di_mode
& S_IFMT
) == S_IFREG
) {
829 if (vap
->va_xflags
& XFS_XFLAG_REALTIME
) {
830 di_flags
|= XFS_DIFLAG_REALTIME
;
831 ip
->i_iocore
.io_flags
|= XFS_IOCORE_RT
;
833 ip
->i_iocore
.io_flags
&= ~XFS_IOCORE_RT
;
835 if (vap
->va_xflags
& XFS_XFLAG_EXTSIZE
)
836 di_flags
|= XFS_DIFLAG_EXTSIZE
;
838 ip
->i_d
.di_flags
= di_flags
;
840 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
841 timeflags
|= XFS_ICHGTIME_CHG
;
845 * Change file inode change time only if XFS_AT_CTIME set
846 * AND we have been called by a DMI function.
849 if ( (flags
& ATTR_DMI
) && (mask
& XFS_AT_CTIME
) ) {
850 ip
->i_d
.di_ctime
.t_sec
= vap
->va_ctime
.tv_sec
;
851 ip
->i_d
.di_ctime
.t_nsec
= vap
->va_ctime
.tv_nsec
;
852 ip
->i_update_core
= 1;
853 timeflags
&= ~XFS_ICHGTIME_CHG
;
857 * Send out timestamp changes that need to be set to the
858 * current time. Not done when called by a DMI function.
860 if (timeflags
&& !(flags
& ATTR_DMI
))
861 xfs_ichgtime(ip
, timeflags
);
863 XFS_STATS_INC(xs_ig_attrchg
);
866 * If this is a synchronous mount, make sure that the
867 * transaction goes to disk before returning to the user.
868 * This is slightly sub-optimal in that truncates require
869 * two sync transactions instead of one for wsync filesystems.
870 * One for the truncate and one for the timestamps since we
871 * don't want to change the timestamps unless we're sure the
872 * truncate worked. Truncates are less than 1% of the laddis
873 * mix so this probably isn't worth the trouble to optimize.
877 if (mp
->m_flags
& XFS_MOUNT_WSYNC
)
878 xfs_trans_set_sync(tp
);
880 code
= xfs_trans_commit(tp
, commit_flags
, NULL
);
884 * If the (regular) file's mandatory locking mode changed, then
885 * notify the vnode. We do this under the inode lock to prevent
886 * racing calls to vop_vnode_change.
888 mandlock_after
= MANDLOCK(vp
, ip
->i_d
.di_mode
);
889 if (mandlock_before
!= mandlock_after
) {
890 bhv_vop_vnode_change(vp
, VCHANGE_FLAGS_ENF_LOCKING
,
894 xfs_iunlock(ip
, lock_flags
);
897 * Release any dquot(s) the inode had kept before chown.
899 XFS_QM_DQRELE(mp
, olddquot1
);
900 XFS_QM_DQRELE(mp
, olddquot2
);
901 XFS_QM_DQRELE(mp
, udqp
);
902 XFS_QM_DQRELE(mp
, gdqp
);
908 if (DM_EVENT_ENABLED(vp
->v_vfsp
, ip
, DM_EVENT_ATTRIBUTE
) &&
909 !(flags
& ATTR_DMI
)) {
910 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_ATTRIBUTE
, vp
, DM_RIGHT_NULL
,
911 NULL
, DM_RIGHT_NULL
, NULL
, NULL
,
912 0, 0, AT_DELAY_FLAG(flags
));
917 commit_flags
|= XFS_TRANS_ABORT
;
920 XFS_QM_DQRELE(mp
, udqp
);
921 XFS_QM_DQRELE(mp
, gdqp
);
923 xfs_trans_cancel(tp
, commit_flags
);
925 if (lock_flags
!= 0) {
926 xfs_iunlock(ip
, lock_flags
);
934 * Null conversion from vnode mode bits to inode mode bits, as in efs.
945 vn_trace_entry(BHV_TO_VNODE(bdp
), __FUNCTION__
,
946 (inst_t
*)__return_address
);
948 ip
= XFS_BHVTOI(bdp
);
949 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
950 error
= xfs_iaccess(ip
, mode
, credp
);
951 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
957 * The maximum pathlen is 1024 bytes. Since the minimum file system
958 * blocksize is 512 bytes, we can get a max of 2 extents back from
961 #define SYMLINK_MAPS 2
982 xfs_bmbt_irec_t mval
[SYMLINK_MAPS
];
988 vp
= BHV_TO_VNODE(bdp
);
989 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
991 ip
= XFS_BHVTOI(bdp
);
994 if (XFS_FORCED_SHUTDOWN(mp
))
995 return XFS_ERROR(EIO
);
997 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
999 ASSERT((ip
->i_d
.di_mode
& S_IFMT
) == S_IFLNK
);
1001 offset
= uiop
->uio_offset
;
1002 count
= uiop
->uio_resid
;
1005 error
= XFS_ERROR(EINVAL
);
1014 * See if the symlink is stored inline.
1016 pathlen
= (int)ip
->i_d
.di_size
;
1018 if (ip
->i_df
.if_flags
& XFS_IFINLINE
) {
1019 error
= uio_read(ip
->i_df
.if_u1
.if_data
, pathlen
, uiop
);
1023 * Symlink not inline. Call bmap to get it in.
1025 nmaps
= SYMLINK_MAPS
;
1027 error
= xfs_bmapi(NULL
, ip
, 0, XFS_B_TO_FSB(mp
, pathlen
),
1028 0, NULL
, 0, mval
, &nmaps
, NULL
, NULL
);
1034 for (n
= 0; n
< nmaps
; n
++) {
1035 d
= XFS_FSB_TO_DADDR(mp
, mval
[n
].br_startblock
);
1036 byte_cnt
= XFS_FSB_TO_B(mp
, mval
[n
].br_blockcount
);
1037 bp
= xfs_buf_read(mp
->m_ddev_targp
, d
,
1038 BTOBB(byte_cnt
), 0);
1039 error
= XFS_BUF_GETERROR(bp
);
1041 xfs_ioerror_alert("xfs_readlink",
1042 ip
->i_mount
, bp
, XFS_BUF_ADDR(bp
));
1046 if (pathlen
< byte_cnt
)
1048 pathlen
-= byte_cnt
;
1050 error
= uio_read(XFS_BUF_PTR(bp
), byte_cnt
, uiop
);
1057 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
1065 * This is called to sync the inode and its data out to disk.
1066 * We need to hold the I/O lock while flushing the data, and
1067 * the inode lock while flushing the inode. The inode lock CANNOT
1068 * be held while flushing the data, so acquire after we're done
1082 int log_flushed
= 0, changed
= 1;
1084 vn_trace_entry(BHV_TO_VNODE(bdp
),
1085 __FUNCTION__
, (inst_t
*)__return_address
);
1087 ip
= XFS_BHVTOI(bdp
);
1089 ASSERT(start
>= 0 && stop
>= -1);
1091 if (XFS_FORCED_SHUTDOWN(ip
->i_mount
))
1092 return XFS_ERROR(EIO
);
1095 * We always need to make sure that the required inode state
1096 * is safe on disk. The vnode might be clean but because
1097 * of committed transactions that haven't hit the disk yet.
1098 * Likewise, there could be unflushed non-transactional
1099 * changes to the inode core that have to go to disk.
1101 * The following code depends on one assumption: that
1102 * any transaction that changes an inode logs the core
1103 * because it has to change some field in the inode core
1104 * (typically nextents or nblocks). That assumption
1105 * implies that any transactions against an inode will
1106 * catch any non-transactional updates. If inode-altering
1107 * transactions exist that violate this assumption, the
1108 * code breaks. Right now, it figures that if the involved
1109 * update_* field is clear and the inode is unpinned, the
1110 * inode is clean. Either it's been flushed or it's been
1111 * committed and the commit has hit the disk unpinning the inode.
1112 * (Note that xfs_inode_item_format() called at commit clears
1113 * the update_* fields.)
1115 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
1117 /* If we are flushing data then we care about update_size
1118 * being set, otherwise we care about update_core
1120 if ((flag
& FSYNC_DATA
) ?
1121 (ip
->i_update_size
== 0) :
1122 (ip
->i_update_core
== 0)) {
1124 * Timestamps/size haven't changed since last inode
1125 * flush or inode transaction commit. That means
1126 * either nothing got written or a transaction
1127 * committed which caught the updates. If the
1128 * latter happened and the transaction hasn't
1129 * hit the disk yet, the inode will be still
1130 * be pinned. If it is, force the log.
1133 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
1135 if (xfs_ipincount(ip
)) {
1136 _xfs_log_force(ip
->i_mount
, (xfs_lsn_t
)0,
1138 ((flag
& FSYNC_WAIT
)
1139 ? XFS_LOG_SYNC
: 0),
1143 * If the inode is not pinned and nothing
1144 * has changed we don't need to flush the
1152 * Kick off a transaction to log the inode
1153 * core to get the updates. Make it
1154 * sync if FSYNC_WAIT is passed in (which
1155 * is done by everybody but specfs). The
1156 * sync transaction will also force the log.
1158 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
1159 tp
= xfs_trans_alloc(ip
->i_mount
, XFS_TRANS_FSYNC_TS
);
1160 if ((error
= xfs_trans_reserve(tp
, 0,
1161 XFS_FSYNC_TS_LOG_RES(ip
->i_mount
),
1163 xfs_trans_cancel(tp
, 0);
1166 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
1169 * Note - it's possible that we might have pushed
1170 * ourselves out of the way during trans_reserve
1171 * which would flush the inode. But there's no
1172 * guarantee that the inode buffer has actually
1173 * gone out yet (it's delwri). Plus the buffer
1174 * could be pinned anyway if it's part of an
1175 * inode in another recent transaction. So we
1176 * play it safe and fire off the transaction anyway.
1178 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
);
1179 xfs_trans_ihold(tp
, ip
);
1180 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
1181 if (flag
& FSYNC_WAIT
)
1182 xfs_trans_set_sync(tp
);
1183 error
= _xfs_trans_commit(tp
, 0, NULL
, &log_flushed
);
1185 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
1188 if ((ip
->i_mount
->m_flags
& XFS_MOUNT_BARRIER
) && changed
) {
1190 * If the log write didn't issue an ordered tag we need
1191 * to flush the disk cache for the data device now.
1194 xfs_blkdev_issue_flush(ip
->i_mount
->m_ddev_targp
);
1197 * If this inode is on the RT dev we need to flush that
1200 if (ip
->i_d
.di_flags
& XFS_DIFLAG_REALTIME
)
1201 xfs_blkdev_issue_flush(ip
->i_mount
->m_rtdev_targp
);
1208 * This is called by xfs_inactive to free any blocks beyond eof,
1209 * when the link count isn't zero.
1212 xfs_inactive_free_eofblocks(
1218 xfs_fileoff_t end_fsb
;
1219 xfs_fileoff_t last_fsb
;
1220 xfs_filblks_t map_len
;
1222 xfs_bmbt_irec_t imap
;
1225 * Figure out if there are any blocks beyond the end
1226 * of the file. If not, then there is nothing to do.
1228 end_fsb
= XFS_B_TO_FSB(mp
, ((xfs_ufsize_t
)ip
->i_d
.di_size
));
1229 last_fsb
= XFS_B_TO_FSB(mp
, (xfs_ufsize_t
)XFS_MAXIOFFSET(mp
));
1230 map_len
= last_fsb
- end_fsb
;
1235 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
1236 error
= XFS_BMAPI(mp
, NULL
, &ip
->i_iocore
, end_fsb
, map_len
, 0,
1237 NULL
, 0, &imap
, &nimaps
, NULL
, NULL
);
1238 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
1240 if (!error
&& (nimaps
!= 0) &&
1241 (imap
.br_startblock
!= HOLESTARTBLOCK
||
1242 ip
->i_delayed_blks
)) {
1244 * Attach the dquots to the inode up front.
1246 if ((error
= XFS_QM_DQATTACH(mp
, ip
, 0)))
1250 * There are blocks after the end of file.
1251 * Free them up now by truncating the file to
1254 tp
= xfs_trans_alloc(mp
, XFS_TRANS_INACTIVE
);
1257 * Do the xfs_itruncate_start() call before
1258 * reserving any log space because
1259 * itruncate_start will call into the buffer
1260 * cache and we can't
1261 * do that within a transaction.
1263 xfs_ilock(ip
, XFS_IOLOCK_EXCL
);
1264 xfs_itruncate_start(ip
, XFS_ITRUNC_DEFINITE
,
1267 error
= xfs_trans_reserve(tp
, 0,
1268 XFS_ITRUNCATE_LOG_RES(mp
),
1269 0, XFS_TRANS_PERM_LOG_RES
,
1270 XFS_ITRUNCATE_LOG_COUNT
);
1272 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1273 xfs_trans_cancel(tp
, 0);
1274 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
1278 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
1279 xfs_trans_ijoin(tp
, ip
,
1282 xfs_trans_ihold(tp
, ip
);
1284 error
= xfs_itruncate_finish(&tp
, ip
,
1289 * If we get an error at this point we
1290 * simply don't bother truncating the file.
1293 xfs_trans_cancel(tp
,
1294 (XFS_TRANS_RELEASE_LOG_RES
|
1297 error
= xfs_trans_commit(tp
,
1298 XFS_TRANS_RELEASE_LOG_RES
,
1301 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1307 * Free a symlink that has blocks associated with it.
1310 xfs_inactive_symlink_rmt(
1318 xfs_fsblock_t first_block
;
1319 xfs_bmap_free_t free_list
;
1322 xfs_bmbt_irec_t mval
[SYMLINK_MAPS
];
1330 ASSERT(ip
->i_d
.di_size
> XFS_IFORK_DSIZE(ip
));
1332 * We're freeing a symlink that has some
1333 * blocks allocated to it. Free the
1334 * blocks here. We know that we've got
1335 * either 1 or 2 extents and that we can
1336 * free them all in one bunmapi call.
1338 ASSERT(ip
->i_d
.di_nextents
> 0 && ip
->i_d
.di_nextents
<= 2);
1339 if ((error
= xfs_trans_reserve(tp
, 0, XFS_ITRUNCATE_LOG_RES(mp
), 0,
1340 XFS_TRANS_PERM_LOG_RES
, XFS_ITRUNCATE_LOG_COUNT
))) {
1341 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1342 xfs_trans_cancel(tp
, 0);
1347 * Lock the inode, fix the size, and join it to the transaction.
1348 * Hold it so in the normal path, we still have it locked for
1349 * the second transaction. In the error paths we need it
1350 * held so the cancel won't rele it, see below.
1352 xfs_ilock(ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1353 size
= (int)ip
->i_d
.di_size
;
1354 ip
->i_d
.di_size
= 0;
1355 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
1356 xfs_trans_ihold(tp
, ip
);
1357 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
1359 * Find the block(s) so we can inval and unmap them.
1362 XFS_BMAP_INIT(&free_list
, &first_block
);
1363 nmaps
= ARRAY_SIZE(mval
);
1364 if ((error
= xfs_bmapi(tp
, ip
, 0, XFS_B_TO_FSB(mp
, size
),
1365 XFS_BMAPI_METADATA
, &first_block
, 0, mval
, &nmaps
,
1369 * Invalidate the block(s).
1371 for (i
= 0; i
< nmaps
; i
++) {
1372 bp
= xfs_trans_get_buf(tp
, mp
->m_ddev_targp
,
1373 XFS_FSB_TO_DADDR(mp
, mval
[i
].br_startblock
),
1374 XFS_FSB_TO_BB(mp
, mval
[i
].br_blockcount
), 0);
1375 xfs_trans_binval(tp
, bp
);
1378 * Unmap the dead block(s) to the free_list.
1380 if ((error
= xfs_bunmapi(tp
, ip
, 0, size
, XFS_BMAPI_METADATA
, nmaps
,
1381 &first_block
, &free_list
, NULL
, &done
)))
1385 * Commit the first transaction. This logs the EFI and the inode.
1387 if ((error
= xfs_bmap_finish(&tp
, &free_list
, first_block
, &committed
)))
1390 * The transaction must have been committed, since there were
1391 * actually extents freed by xfs_bunmapi. See xfs_bmap_finish.
1392 * The new tp has the extent freeing and EFDs.
1396 * The first xact was committed, so add the inode to the new one.
1397 * Mark it dirty so it will be logged and moved forward in the log as
1398 * part of every commit.
1400 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
1401 xfs_trans_ihold(tp
, ip
);
1402 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
1404 * Get a new, empty transaction to return to our caller.
1406 ntp
= xfs_trans_dup(tp
);
1408 * Commit the transaction containing extent freeing and EFDs.
1409 * If we get an error on the commit here or on the reserve below,
1410 * we need to unlock the inode since the new transaction doesn't
1411 * have the inode attached.
1413 error
= xfs_trans_commit(tp
, 0, NULL
);
1416 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1420 * Remove the memory for extent descriptions (just bookkeeping).
1422 if (ip
->i_df
.if_bytes
)
1423 xfs_idata_realloc(ip
, -ip
->i_df
.if_bytes
, XFS_DATA_FORK
);
1424 ASSERT(ip
->i_df
.if_bytes
== 0);
1426 * Put an itruncate log reservation in the new transaction
1429 if ((error
= xfs_trans_reserve(tp
, 0, XFS_ITRUNCATE_LOG_RES(mp
), 0,
1430 XFS_TRANS_PERM_LOG_RES
, XFS_ITRUNCATE_LOG_COUNT
))) {
1431 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1435 * Return with the inode locked but not joined to the transaction.
1441 xfs_bmap_cancel(&free_list
);
1444 * Have to come here with the inode locked and either
1445 * (held and in the transaction) or (not in the transaction).
1446 * If the inode isn't held then cancel would iput it, but
1447 * that's wrong since this is inactive and the vnode ref
1448 * count is 0 already.
1449 * Cancel won't do anything to the inode if held, but it still
1450 * needs to be locked until the cancel is done, if it was
1451 * joined to the transaction.
1453 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
| XFS_TRANS_ABORT
);
1454 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1461 xfs_inactive_symlink_local(
1467 ASSERT(ip
->i_d
.di_size
<= XFS_IFORK_DSIZE(ip
));
1469 * We're freeing a symlink which fit into
1470 * the inode. Just free the memory used
1471 * to hold the old symlink.
1473 error
= xfs_trans_reserve(*tpp
, 0,
1474 XFS_ITRUNCATE_LOG_RES(ip
->i_mount
),
1475 0, XFS_TRANS_PERM_LOG_RES
,
1476 XFS_ITRUNCATE_LOG_COUNT
);
1479 xfs_trans_cancel(*tpp
, 0);
1483 xfs_ilock(ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
1486 * Zero length symlinks _can_ exist.
1488 if (ip
->i_df
.if_bytes
> 0) {
1489 xfs_idata_realloc(ip
,
1490 -(ip
->i_df
.if_bytes
),
1492 ASSERT(ip
->i_df
.if_bytes
== 0);
1506 ASSERT(ismrlocked(&ip
->i_iolock
, MR_UPDATE
));
1509 ASSERT(ip
->i_d
.di_forkoff
!= 0);
1510 xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
1511 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
1513 error
= xfs_attr_inactive(ip
);
1516 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
1517 return error
; /* goto out */
1520 tp
= xfs_trans_alloc(mp
, XFS_TRANS_INACTIVE
);
1521 error
= xfs_trans_reserve(tp
, 0,
1522 XFS_IFREE_LOG_RES(mp
),
1523 0, XFS_TRANS_PERM_LOG_RES
,
1524 XFS_INACTIVE_LOG_COUNT
);
1526 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1527 xfs_trans_cancel(tp
, 0);
1529 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
1533 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
1534 xfs_trans_ijoin(tp
, ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1535 xfs_trans_ihold(tp
, ip
);
1536 xfs_idestroy_fork(ip
, XFS_ATTR_FORK
);
1538 ASSERT(ip
->i_d
.di_anextents
== 0);
1553 vp
= BHV_TO_VNODE(bdp
);
1554 ip
= XFS_BHVTOI(bdp
);
1557 if (!VN_ISREG(vp
) || (ip
->i_d
.di_mode
== 0))
1560 /* If this is a read-only mount, don't do this (would generate I/O) */
1561 if (vp
->v_vfsp
->vfs_flag
& VFS_RDONLY
)
1564 #ifdef HAVE_REFCACHE
1565 /* If we are in the NFS reference cache then don't do this now */
1570 if (ip
->i_d
.di_nlink
!= 0) {
1571 if ((((ip
->i_d
.di_mode
& S_IFMT
) == S_IFREG
) &&
1572 ((ip
->i_d
.di_size
> 0) || (VN_CACHED(vp
) > 0 ||
1573 ip
->i_delayed_blks
> 0)) &&
1574 (ip
->i_df
.if_flags
& XFS_IFEXTENTS
)) &&
1575 (!(ip
->i_d
.di_flags
&
1576 (XFS_DIFLAG_PREALLOC
| XFS_DIFLAG_APPEND
)))) {
1577 if ((error
= xfs_inactive_free_eofblocks(mp
, ip
)))
1579 /* Update linux inode block count after free above */
1580 vn_to_inode(vp
)->i_blocks
= XFS_FSB_TO_BB(mp
,
1581 ip
->i_d
.di_nblocks
+ ip
->i_delayed_blks
);
1591 * This is called when the vnode reference count for the vnode
1592 * goes to zero. If the file has been unlinked, then it must
1593 * now be truncated. Also, we clear all of the read-ahead state
1594 * kept for the inode here since the file is now closed.
1603 xfs_bmap_free_t free_list
;
1604 xfs_fsblock_t first_block
;
1611 vp
= BHV_TO_VNODE(bdp
);
1612 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
1614 ip
= XFS_BHVTOI(bdp
);
1617 * If the inode is already free, then there can be nothing
1620 if (ip
->i_d
.di_mode
== 0 || VN_BAD(vp
)) {
1621 ASSERT(ip
->i_df
.if_real_bytes
== 0);
1622 ASSERT(ip
->i_df
.if_broot_bytes
== 0);
1623 return VN_INACTIVE_CACHE
;
1627 * Only do a truncate if it's a regular file with
1628 * some actual space in it. It's OK to look at the
1629 * inode's fields without the lock because we're the
1630 * only one with a reference to the inode.
1632 truncate
= ((ip
->i_d
.di_nlink
== 0) &&
1633 ((ip
->i_d
.di_size
!= 0) || (ip
->i_d
.di_nextents
> 0) ||
1634 (ip
->i_delayed_blks
> 0)) &&
1635 ((ip
->i_d
.di_mode
& S_IFMT
) == S_IFREG
));
1639 if (ip
->i_d
.di_nlink
== 0 &&
1640 DM_EVENT_ENABLED(vp
->v_vfsp
, ip
, DM_EVENT_DESTROY
)) {
1641 (void) XFS_SEND_DESTROY(mp
, vp
, DM_RIGHT_NULL
);
1646 /* If this is a read-only mount, don't do this (would generate I/O) */
1647 if (vp
->v_vfsp
->vfs_flag
& VFS_RDONLY
)
1650 if (ip
->i_d
.di_nlink
!= 0) {
1651 if ((((ip
->i_d
.di_mode
& S_IFMT
) == S_IFREG
) &&
1652 ((ip
->i_d
.di_size
> 0) || (VN_CACHED(vp
) > 0 ||
1653 ip
->i_delayed_blks
> 0)) &&
1654 (ip
->i_df
.if_flags
& XFS_IFEXTENTS
) &&
1655 (!(ip
->i_d
.di_flags
&
1656 (XFS_DIFLAG_PREALLOC
| XFS_DIFLAG_APPEND
)) ||
1657 (ip
->i_delayed_blks
!= 0)))) {
1658 if ((error
= xfs_inactive_free_eofblocks(mp
, ip
)))
1659 return VN_INACTIVE_CACHE
;
1660 /* Update linux inode block count after free above */
1661 vn_to_inode(vp
)->i_blocks
= XFS_FSB_TO_BB(mp
,
1662 ip
->i_d
.di_nblocks
+ ip
->i_delayed_blks
);
1667 ASSERT(ip
->i_d
.di_nlink
== 0);
1669 if ((error
= XFS_QM_DQATTACH(mp
, ip
, 0)))
1670 return VN_INACTIVE_CACHE
;
1672 tp
= xfs_trans_alloc(mp
, XFS_TRANS_INACTIVE
);
1675 * Do the xfs_itruncate_start() call before
1676 * reserving any log space because itruncate_start
1677 * will call into the buffer cache and we can't
1678 * do that within a transaction.
1680 xfs_ilock(ip
, XFS_IOLOCK_EXCL
);
1682 xfs_itruncate_start(ip
, XFS_ITRUNC_DEFINITE
, 0);
1684 error
= xfs_trans_reserve(tp
, 0,
1685 XFS_ITRUNCATE_LOG_RES(mp
),
1686 0, XFS_TRANS_PERM_LOG_RES
,
1687 XFS_ITRUNCATE_LOG_COUNT
);
1689 /* Don't call itruncate_cleanup */
1690 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1691 xfs_trans_cancel(tp
, 0);
1692 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
1693 return VN_INACTIVE_CACHE
;
1696 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
1697 xfs_trans_ijoin(tp
, ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1698 xfs_trans_ihold(tp
, ip
);
1701 * normally, we have to run xfs_itruncate_finish sync.
1702 * But if filesystem is wsync and we're in the inactive
1703 * path, then we know that nlink == 0, and that the
1704 * xaction that made nlink == 0 is permanently committed
1705 * since xfs_remove runs as a synchronous transaction.
1707 error
= xfs_itruncate_finish(&tp
, ip
, 0, XFS_DATA_FORK
,
1708 (!(mp
->m_flags
& XFS_MOUNT_WSYNC
) ? 1 : 0));
1711 xfs_trans_cancel(tp
,
1712 XFS_TRANS_RELEASE_LOG_RES
| XFS_TRANS_ABORT
);
1713 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1714 return VN_INACTIVE_CACHE
;
1716 } else if ((ip
->i_d
.di_mode
& S_IFMT
) == S_IFLNK
) {
1719 * If we get an error while cleaning up a
1720 * symlink we bail out.
1722 error
= (ip
->i_d
.di_size
> XFS_IFORK_DSIZE(ip
)) ?
1723 xfs_inactive_symlink_rmt(ip
, &tp
) :
1724 xfs_inactive_symlink_local(ip
, &tp
);
1728 return VN_INACTIVE_CACHE
;
1731 xfs_trans_ijoin(tp
, ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1732 xfs_trans_ihold(tp
, ip
);
1734 error
= xfs_trans_reserve(tp
, 0,
1735 XFS_IFREE_LOG_RES(mp
),
1736 0, XFS_TRANS_PERM_LOG_RES
,
1737 XFS_INACTIVE_LOG_COUNT
);
1739 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1740 xfs_trans_cancel(tp
, 0);
1741 return VN_INACTIVE_CACHE
;
1744 xfs_ilock(ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
1745 xfs_trans_ijoin(tp
, ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1746 xfs_trans_ihold(tp
, ip
);
1750 * If there are attributes associated with the file
1751 * then blow them away now. The code calls a routine
1752 * that recursively deconstructs the attribute fork.
1753 * We need to just commit the current transaction
1754 * because we can't use it for xfs_attr_inactive().
1756 if (ip
->i_d
.di_anextents
> 0) {
1757 error
= xfs_inactive_attrs(ip
, &tp
);
1759 * If we got an error, the transaction is already
1760 * cancelled, and the inode is unlocked. Just get out.
1763 return VN_INACTIVE_CACHE
;
1764 } else if (ip
->i_afp
) {
1765 xfs_idestroy_fork(ip
, XFS_ATTR_FORK
);
1771 XFS_BMAP_INIT(&free_list
, &first_block
);
1772 error
= xfs_ifree(tp
, ip
, &free_list
);
1775 * If we fail to free the inode, shut down. The cancel
1776 * might do that, we need to make sure. Otherwise the
1777 * inode might be lost for a long time or forever.
1779 if (!XFS_FORCED_SHUTDOWN(mp
)) {
1781 "xfs_inactive: xfs_ifree() returned an error = %d on %s",
1782 error
, mp
->m_fsname
);
1783 xfs_force_shutdown(mp
, SHUTDOWN_META_IO_ERROR
);
1785 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
|XFS_TRANS_ABORT
);
1788 * Credit the quota account(s). The inode is gone.
1790 XFS_TRANS_MOD_DQUOT_BYINO(mp
, tp
, ip
, XFS_TRANS_DQ_ICOUNT
, -1);
1793 * Just ignore errors at this point. There is
1794 * nothing we can do except to try to keep going.
1796 (void) xfs_bmap_finish(&tp
, &free_list
, first_block
,
1798 (void) xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
1801 * Release the dquots held by inode, if any.
1803 XFS_QM_DQDETACH(mp
, ip
);
1805 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1808 return VN_INACTIVE_CACHE
;
1817 bhv_desc_t
*dir_bdp
,
1824 xfs_inode_t
*dp
, *ip
;
1828 bhv_vnode_t
*dir_vp
;
1830 dir_vp
= BHV_TO_VNODE(dir_bdp
);
1831 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
1833 dp
= XFS_BHVTOI(dir_bdp
);
1835 if (XFS_FORCED_SHUTDOWN(dp
->i_mount
))
1836 return XFS_ERROR(EIO
);
1838 lock_mode
= xfs_ilock_map_shared(dp
);
1839 error
= xfs_dir_lookup_int(dir_bdp
, lock_mode
, dentry
, &e_inum
, &ip
);
1841 *vpp
= XFS_ITOV(ip
);
1844 xfs_iunlock_map_shared(dp
, lock_mode
);
1850 * xfs_create (create a new file).
1854 bhv_desc_t
*dir_bdp
,
1860 char *name
= VNAME(dentry
);
1861 bhv_vnode_t
*dir_vp
;
1862 xfs_inode_t
*dp
, *ip
;
1863 bhv_vnode_t
*vp
= NULL
;
1868 xfs_bmap_free_t free_list
;
1869 xfs_fsblock_t first_block
;
1870 boolean_t dp_joined_to_trans
;
1871 int dm_event_sent
= 0;
1875 struct xfs_dquot
*udqp
, *gdqp
;
1881 dir_vp
= BHV_TO_VNODE(dir_bdp
);
1882 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
1884 dp
= XFS_BHVTOI(dir_bdp
);
1887 dm_di_mode
= vap
->va_mode
;
1888 namelen
= VNAMELEN(dentry
);
1890 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_CREATE
)) {
1891 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_CREATE
,
1892 dir_vp
, DM_RIGHT_NULL
, NULL
,
1893 DM_RIGHT_NULL
, name
, NULL
,
1901 if (XFS_FORCED_SHUTDOWN(mp
))
1902 return XFS_ERROR(EIO
);
1904 /* Return through std_return after this point. */
1907 if (dp
->i_d
.di_flags
& XFS_DIFLAG_PROJINHERIT
)
1908 prid
= dp
->i_d
.di_projid
;
1909 else if (vap
->va_mask
& XFS_AT_PROJID
)
1910 prid
= (xfs_prid_t
)vap
->va_projid
;
1912 prid
= (xfs_prid_t
)dfltprid
;
1915 * Make sure that we have allocated dquot(s) on disk.
1917 error
= XFS_QM_DQVOPALLOC(mp
, dp
,
1918 current_fsuid(credp
), current_fsgid(credp
), prid
,
1919 XFS_QMOPT_QUOTALL
|XFS_QMOPT_INHERIT
, &udqp
, &gdqp
);
1924 dp_joined_to_trans
= B_FALSE
;
1926 tp
= xfs_trans_alloc(mp
, XFS_TRANS_CREATE
);
1927 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
1928 resblks
= XFS_CREATE_SPACE_RES(mp
, namelen
);
1930 * Initially assume that the file does not exist and
1931 * reserve the resources for that case. If that is not
1932 * the case we'll drop the one we have and get a more
1933 * appropriate transaction later.
1935 error
= xfs_trans_reserve(tp
, resblks
, XFS_CREATE_LOG_RES(mp
), 0,
1936 XFS_TRANS_PERM_LOG_RES
, XFS_CREATE_LOG_COUNT
);
1937 if (error
== ENOSPC
) {
1939 error
= xfs_trans_reserve(tp
, 0, XFS_CREATE_LOG_RES(mp
), 0,
1940 XFS_TRANS_PERM_LOG_RES
, XFS_CREATE_LOG_COUNT
);
1948 xfs_ilock(dp
, XFS_ILOCK_EXCL
);
1950 XFS_BMAP_INIT(&free_list
, &first_block
);
1955 * Reserve disk quota and the inode.
1957 error
= XFS_TRANS_RESERVE_QUOTA(mp
, tp
, udqp
, gdqp
, resblks
, 1, 0);
1962 (error
= XFS_DIR_CANENTER(mp
, tp
, dp
, name
, namelen
)))
1964 rdev
= (vap
->va_mask
& XFS_AT_RDEV
) ? vap
->va_rdev
: 0;
1965 error
= xfs_dir_ialloc(&tp
, dp
, vap
->va_mode
, 1,
1966 rdev
, credp
, prid
, resblks
> 0,
1969 if (error
== ENOSPC
)
1976 * At this point, we've gotten a newly allocated inode.
1977 * It is locked (and joined to the transaction).
1980 ASSERT(ismrlocked (&ip
->i_lock
, MR_UPDATE
));
1983 * Now we join the directory inode to the transaction.
1984 * We do not do it earlier because xfs_dir_ialloc
1985 * might commit the previous transaction (and release
1990 xfs_trans_ijoin(tp
, dp
, XFS_ILOCK_EXCL
);
1991 dp_joined_to_trans
= B_TRUE
;
1993 error
= XFS_DIR_CREATENAME(mp
, tp
, dp
, name
, namelen
, ip
->i_ino
,
1994 &first_block
, &free_list
,
1995 resblks
? resblks
- XFS_IALLOC_SPACE_RES(mp
) : 0);
1997 ASSERT(error
!= ENOSPC
);
2000 xfs_ichgtime(dp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
2001 xfs_trans_log_inode(tp
, dp
, XFS_ILOG_CORE
);
2004 * If this is a synchronous mount, make sure that the
2005 * create transaction goes to disk before returning to
2008 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
2009 xfs_trans_set_sync(tp
);
2015 * Attach the dquot(s) to the inodes and modify them incore.
2016 * These ids of the inode couldn't have changed since the new
2017 * inode has been locked ever since it was created.
2019 XFS_QM_DQVOPCREATE(mp
, tp
, ip
, udqp
, gdqp
);
2022 * xfs_trans_commit normally decrements the vnode ref count
2023 * when it unlocks the inode. Since we want to return the
2024 * vnode to the caller, we bump the vnode ref count now.
2029 error
= xfs_bmap_finish(&tp
, &free_list
, first_block
, &committed
);
2031 xfs_bmap_cancel(&free_list
);
2035 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
2042 XFS_QM_DQRELE(mp
, udqp
);
2043 XFS_QM_DQRELE(mp
, gdqp
);
2046 * Propagate the fact that the vnode changed after the
2047 * xfs_inode locks have been released.
2049 bhv_vop_vnode_change(vp
, VCHANGE_FLAGS_TRUNCATED
, 3);
2053 /* Fallthrough to std_return with error = 0 */
2056 if ( (*vpp
|| (error
!= 0 && dm_event_sent
!= 0)) &&
2057 DM_EVENT_ENABLED(dir_vp
->v_vfsp
, XFS_BHVTOI(dir_bdp
),
2058 DM_EVENT_POSTCREATE
)) {
2059 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTCREATE
,
2060 dir_vp
, DM_RIGHT_NULL
,
2062 DM_RIGHT_NULL
, name
, NULL
,
2063 dm_di_mode
, error
, 0);
2068 cancel_flags
|= XFS_TRANS_ABORT
;
2073 xfs_trans_cancel(tp
, cancel_flags
);
2075 if (!dp_joined_to_trans
&& (dp
!= NULL
))
2076 xfs_iunlock(dp
, XFS_ILOCK_EXCL
);
2077 XFS_QM_DQRELE(mp
, udqp
);
2078 XFS_QM_DQRELE(mp
, gdqp
);
2084 * Wait until after the current transaction is aborted to
2085 * release the inode. This prevents recursive transactions
2086 * and deadlocks from xfs_inactive.
2088 cancel_flags
|= XFS_TRANS_ABORT
;
2089 xfs_trans_cancel(tp
, cancel_flags
);
2092 XFS_QM_DQRELE(mp
, udqp
);
2093 XFS_QM_DQRELE(mp
, gdqp
);
2100 * Some counters to see if (and how often) we are hitting some deadlock
2101 * prevention code paths.
2105 int xfs_rm_lock_delays
;
2106 int xfs_rm_attempts
;
2110 * The following routine will lock the inodes associated with the
2111 * directory and the named entry in the directory. The locks are
2112 * acquired in increasing inode number.
2114 * If the entry is "..", then only the directory is locked. The
2115 * vnode ref count will still include that from the .. entry in
2118 * There is a deadlock we need to worry about. If the locked directory is
2119 * in the AIL, it might be blocking up the log. The next inode we lock
2120 * could be already locked by another thread waiting for log space (e.g
2121 * a permanent log reservation with a long running transaction (see
2122 * xfs_itruncate_finish)). To solve this, we must check if the directory
2123 * is in the ail and use lock_nowait. If we can't lock, we need to
2124 * drop the inode lock on the directory and try again. xfs_iunlock will
2125 * potentially push the tail if we were holding up the log.
2128 xfs_lock_dir_and_entry(
2131 xfs_inode_t
*ip
) /* inode of entry 'name' */
2135 xfs_inode_t
*ips
[2];
2144 xfs_ilock(dp
, XFS_ILOCK_EXCL
);
2151 * We want to lock in increasing inum. Since we've already
2152 * acquired the lock on the directory, we may need to release
2153 * if if the inum of the entry turns out to be less.
2155 if (e_inum
> dp
->i_ino
) {
2157 * We are already in the right order, so just
2158 * lock on the inode of the entry.
2159 * We need to use nowait if dp is in the AIL.
2162 lp
= (xfs_log_item_t
*)dp
->i_itemp
;
2163 if (lp
&& (lp
->li_flags
& XFS_LI_IN_AIL
)) {
2164 if (!xfs_ilock_nowait(ip
, XFS_ILOCK_EXCL
)) {
2171 * Unlock dp and try again.
2172 * xfs_iunlock will try to push the tail
2173 * if the inode is in the AIL.
2176 xfs_iunlock(dp
, XFS_ILOCK_EXCL
);
2178 if ((attempts
% 5) == 0) {
2179 delay(1); /* Don't just spin the CPU */
2181 xfs_rm_lock_delays
++;
2187 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
2189 } else if (e_inum
< dp
->i_ino
) {
2190 xfs_iunlock(dp
, XFS_ILOCK_EXCL
);
2194 xfs_lock_inodes(ips
, 2, 0, XFS_ILOCK_EXCL
);
2196 /* else e_inum == dp->i_ino */
2197 /* This can happen if we're asked to lock /x/..
2198 * the entry is "..", which is also the parent directory.
2206 int xfs_small_retries
;
2207 int xfs_middle_retries
;
2208 int xfs_lots_retries
;
2209 int xfs_lock_delays
;
2213 * The following routine will lock n inodes in exclusive mode.
2214 * We assume the caller calls us with the inodes in i_ino order.
2216 * We need to detect deadlock where an inode that we lock
2217 * is in the AIL and we start waiting for another inode that is locked
2218 * by a thread in a long running transaction (such as truncate). This can
2219 * result in deadlock since the long running trans might need to wait
2220 * for the inode we just locked in order to push the tail and free space
2230 int attempts
= 0, i
, j
, try_lock
;
2233 ASSERT(ips
&& (inodes
>= 2)); /* we need at least two */
2244 for (; i
< inodes
; i
++) {
2247 if (i
&& (ips
[i
] == ips
[i
-1])) /* Already locked */
2251 * If try_lock is not set yet, make sure all locked inodes
2252 * are not in the AIL.
2253 * If any are, set try_lock to be used later.
2257 for (j
= (i
- 1); j
>= 0 && !try_lock
; j
--) {
2258 lp
= (xfs_log_item_t
*)ips
[j
]->i_itemp
;
2259 if (lp
&& (lp
->li_flags
& XFS_LI_IN_AIL
)) {
2266 * If any of the previous locks we have locked is in the AIL,
2267 * we must TRY to get the second and subsequent locks. If
2268 * we can't get any, we must release all we have
2273 /* try_lock must be 0 if i is 0. */
2275 * try_lock means we have an inode locked
2276 * that is in the AIL.
2279 if (!xfs_ilock_nowait(ips
[i
], lock_mode
)) {
2283 * Unlock all previous guys and try again.
2284 * xfs_iunlock will try to push the tail
2285 * if the inode is in the AIL.
2288 for(j
= i
- 1; j
>= 0; j
--) {
2291 * Check to see if we've already
2292 * unlocked this one.
2293 * Not the first one going back,
2294 * and the inode ptr is the same.
2296 if ((j
!= (i
- 1)) && ips
[j
] ==
2300 xfs_iunlock(ips
[j
], lock_mode
);
2303 if ((attempts
% 5) == 0) {
2304 delay(1); /* Don't just spin the CPU */
2314 xfs_ilock(ips
[i
], lock_mode
);
2320 if (attempts
< 5) xfs_small_retries
++;
2321 else if (attempts
< 100) xfs_middle_retries
++;
2322 else xfs_lots_retries
++;
2330 #define REMOVE_DEBUG_TRACE(x) {remove_which_error_return = (x);}
2331 int remove_which_error_return
= 0;
2333 #define REMOVE_DEBUG_TRACE(x)
2334 #endif /* ! DEBUG */
2343 bhv_desc_t
*dir_bdp
,
2347 bhv_vnode_t
*dir_vp
;
2348 char *name
= VNAME(dentry
);
2349 xfs_inode_t
*dp
, *ip
;
2350 xfs_trans_t
*tp
= NULL
;
2353 xfs_bmap_free_t free_list
;
2354 xfs_fsblock_t first_block
;
2362 dir_vp
= BHV_TO_VNODE(dir_bdp
);
2363 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
2365 dp
= XFS_BHVTOI(dir_bdp
);
2368 if (XFS_FORCED_SHUTDOWN(mp
))
2369 return XFS_ERROR(EIO
);
2371 namelen
= VNAMELEN(dentry
);
2373 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_REMOVE
)) {
2374 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_REMOVE
, dir_vp
,
2375 DM_RIGHT_NULL
, NULL
, DM_RIGHT_NULL
,
2376 name
, NULL
, 0, 0, 0);
2381 /* From this point on, return through std_return */
2385 * We need to get a reference to ip before we get our log
2386 * reservation. The reason for this is that we cannot call
2387 * xfs_iget for an inode for which we do not have a reference
2388 * once we've acquired a log reservation. This is because the
2389 * inode we are trying to get might be in xfs_inactive going
2390 * for a log reservation. Since we'll have to wait for the
2391 * inactive code to complete before returning from xfs_iget,
2392 * we need to make sure that we don't have log space reserved
2393 * when we call xfs_iget. Instead we get an unlocked reference
2394 * to the inode before getting our log reservation.
2396 error
= xfs_get_dir_entry(dentry
, &ip
);
2398 REMOVE_DEBUG_TRACE(__LINE__
);
2402 dm_di_mode
= ip
->i_d
.di_mode
;
2404 vn_trace_entry(XFS_ITOV(ip
), __FUNCTION__
, (inst_t
*)__return_address
);
2408 error
= XFS_QM_DQATTACH(mp
, dp
, 0);
2409 if (!error
&& dp
!= ip
)
2410 error
= XFS_QM_DQATTACH(mp
, ip
, 0);
2412 REMOVE_DEBUG_TRACE(__LINE__
);
2417 tp
= xfs_trans_alloc(mp
, XFS_TRANS_REMOVE
);
2418 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
2420 * We try to get the real space reservation first,
2421 * allowing for directory btree deletion(s) implying
2422 * possible bmap insert(s). If we can't get the space
2423 * reservation then we use 0 instead, and avoid the bmap
2424 * btree insert(s) in the directory code by, if the bmap
2425 * insert tries to happen, instead trimming the LAST
2426 * block from the directory.
2428 resblks
= XFS_REMOVE_SPACE_RES(mp
);
2429 error
= xfs_trans_reserve(tp
, resblks
, XFS_REMOVE_LOG_RES(mp
), 0,
2430 XFS_TRANS_PERM_LOG_RES
, XFS_REMOVE_LOG_COUNT
);
2431 if (error
== ENOSPC
) {
2433 error
= xfs_trans_reserve(tp
, 0, XFS_REMOVE_LOG_RES(mp
), 0,
2434 XFS_TRANS_PERM_LOG_RES
, XFS_REMOVE_LOG_COUNT
);
2437 ASSERT(error
!= ENOSPC
);
2438 REMOVE_DEBUG_TRACE(__LINE__
);
2439 xfs_trans_cancel(tp
, 0);
2444 error
= xfs_lock_dir_and_entry(dp
, dentry
, ip
);
2446 REMOVE_DEBUG_TRACE(__LINE__
);
2447 xfs_trans_cancel(tp
, cancel_flags
);
2453 * At this point, we've gotten both the directory and the entry
2456 xfs_trans_ijoin(tp
, dp
, XFS_ILOCK_EXCL
);
2459 * Increment vnode ref count only in this case since
2460 * there's an extra vnode reference in the case where
2464 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
);
2468 * Entry must exist since we did a lookup in xfs_lock_dir_and_entry.
2470 XFS_BMAP_INIT(&free_list
, &first_block
);
2471 error
= XFS_DIR_REMOVENAME(mp
, tp
, dp
, name
, namelen
, ip
->i_ino
,
2472 &first_block
, &free_list
, 0);
2474 ASSERT(error
!= ENOENT
);
2475 REMOVE_DEBUG_TRACE(__LINE__
);
2478 xfs_ichgtime(dp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
2481 xfs_trans_log_inode(tp
, dp
, XFS_ILOG_CORE
);
2483 error
= xfs_droplink(tp
, ip
);
2485 REMOVE_DEBUG_TRACE(__LINE__
);
2489 /* Determine if this is the last link while
2490 * we are in the transaction.
2492 link_zero
= (ip
)->i_d
.di_nlink
==0;
2495 * Take an extra ref on the inode so that it doesn't
2496 * go to xfs_inactive() from within the commit.
2501 * If this is a synchronous mount, make sure that the
2502 * remove transaction goes to disk before returning to
2505 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
2506 xfs_trans_set_sync(tp
);
2509 error
= xfs_bmap_finish(&tp
, &free_list
, first_block
, &committed
);
2511 REMOVE_DEBUG_TRACE(__LINE__
);
2515 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
2522 * Before we drop our extra reference to the inode, purge it
2523 * from the refcache if it is there. By waiting until afterwards
2524 * to do the IRELE, we ensure that we won't go inactive in the
2525 * xfs_refcache_purge_ip routine (although that would be OK).
2527 xfs_refcache_purge_ip(ip
);
2529 vn_trace_exit(XFS_ITOV(ip
), __FUNCTION__
, (inst_t
*)__return_address
);
2532 * Let interposed file systems know about removed links.
2534 bhv_vop_link_removed(XFS_ITOV(ip
), dir_vp
, link_zero
);
2538 /* Fall through to std_return with error = 0 */
2540 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
,
2541 DM_EVENT_POSTREMOVE
)) {
2542 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTREMOVE
,
2543 dir_vp
, DM_RIGHT_NULL
,
2544 NULL
, DM_RIGHT_NULL
,
2545 name
, NULL
, dm_di_mode
, error
, 0);
2550 xfs_bmap_cancel(&free_list
);
2551 cancel_flags
|= XFS_TRANS_ABORT
;
2552 xfs_trans_cancel(tp
, cancel_flags
);
2557 * In this case make sure to not release the inode until after
2558 * the current transaction is aborted. Releasing it beforehand
2559 * can cause us to go to xfs_inactive and start a recursive
2560 * transaction which can easily deadlock with the current one.
2562 xfs_bmap_cancel(&free_list
);
2563 cancel_flags
|= XFS_TRANS_ABORT
;
2564 xfs_trans_cancel(tp
, cancel_flags
);
2567 * Before we drop our extra reference to the inode, purge it
2568 * from the refcache if it is there. By waiting until afterwards
2569 * to do the IRELE, we ensure that we won't go inactive in the
2570 * xfs_refcache_purge_ip routine (although that would be OK).
2572 xfs_refcache_purge_ip(ip
);
2586 bhv_desc_t
*target_dir_bdp
,
2587 bhv_vnode_t
*src_vp
,
2591 xfs_inode_t
*tdp
, *sip
;
2594 xfs_inode_t
*ips
[2];
2596 xfs_bmap_free_t free_list
;
2597 xfs_fsblock_t first_block
;
2600 bhv_vnode_t
*target_dir_vp
;
2602 char *target_name
= VNAME(dentry
);
2605 target_dir_vp
= BHV_TO_VNODE(target_dir_bdp
);
2606 vn_trace_entry(target_dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
2607 vn_trace_entry(src_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
2609 target_namelen
= VNAMELEN(dentry
);
2610 if (VN_ISDIR(src_vp
))
2611 return XFS_ERROR(EPERM
);
2613 sip
= xfs_vtoi(src_vp
);
2614 tdp
= XFS_BHVTOI(target_dir_bdp
);
2616 if (XFS_FORCED_SHUTDOWN(mp
))
2617 return XFS_ERROR(EIO
);
2619 if (DM_EVENT_ENABLED(src_vp
->v_vfsp
, tdp
, DM_EVENT_LINK
)) {
2620 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_LINK
,
2621 target_dir_vp
, DM_RIGHT_NULL
,
2622 src_vp
, DM_RIGHT_NULL
,
2623 target_name
, NULL
, 0, 0, 0);
2628 /* Return through std_return after this point. */
2630 error
= XFS_QM_DQATTACH(mp
, sip
, 0);
2631 if (!error
&& sip
!= tdp
)
2632 error
= XFS_QM_DQATTACH(mp
, tdp
, 0);
2636 tp
= xfs_trans_alloc(mp
, XFS_TRANS_LINK
);
2637 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
2638 resblks
= XFS_LINK_SPACE_RES(mp
, target_namelen
);
2639 error
= xfs_trans_reserve(tp
, resblks
, XFS_LINK_LOG_RES(mp
), 0,
2640 XFS_TRANS_PERM_LOG_RES
, XFS_LINK_LOG_COUNT
);
2641 if (error
== ENOSPC
) {
2643 error
= xfs_trans_reserve(tp
, 0, XFS_LINK_LOG_RES(mp
), 0,
2644 XFS_TRANS_PERM_LOG_RES
, XFS_LINK_LOG_COUNT
);
2651 if (sip
->i_ino
< tdp
->i_ino
) {
2659 xfs_lock_inodes(ips
, 2, 0, XFS_ILOCK_EXCL
);
2662 * Increment vnode ref counts since xfs_trans_commit &
2663 * xfs_trans_cancel will both unlock the inodes and
2664 * decrement the associated ref counts.
2667 VN_HOLD(target_dir_vp
);
2668 xfs_trans_ijoin(tp
, sip
, XFS_ILOCK_EXCL
);
2669 xfs_trans_ijoin(tp
, tdp
, XFS_ILOCK_EXCL
);
2672 * If the source has too many links, we can't make any more to it.
2674 if (sip
->i_d
.di_nlink
>= XFS_MAXLINK
) {
2675 error
= XFS_ERROR(EMLINK
);
2680 * If we are using project inheritance, we only allow hard link
2681 * creation in our tree when the project IDs are the same; else
2682 * the tree quota mechanism could be circumvented.
2684 if (unlikely((tdp
->i_d
.di_flags
& XFS_DIFLAG_PROJINHERIT
) &&
2685 (tdp
->i_d
.di_projid
!= sip
->i_d
.di_projid
))) {
2686 error
= XFS_ERROR(EXDEV
);
2691 (error
= XFS_DIR_CANENTER(mp
, tp
, tdp
, target_name
,
2695 XFS_BMAP_INIT(&free_list
, &first_block
);
2697 error
= XFS_DIR_CREATENAME(mp
, tp
, tdp
, target_name
, target_namelen
,
2698 sip
->i_ino
, &first_block
, &free_list
,
2702 xfs_ichgtime(tdp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
2704 xfs_trans_log_inode(tp
, tdp
, XFS_ILOG_CORE
);
2706 error
= xfs_bumplink(tp
, sip
);
2712 * If this is a synchronous mount, make sure that the
2713 * link transaction goes to disk before returning to
2716 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
2717 xfs_trans_set_sync(tp
);
2720 error
= xfs_bmap_finish (&tp
, &free_list
, first_block
, &committed
);
2722 xfs_bmap_cancel(&free_list
);
2726 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
2731 /* Fall through to std_return with error = 0. */
2733 if (DM_EVENT_ENABLED(src_vp
->v_vfsp
, sip
,
2734 DM_EVENT_POSTLINK
)) {
2735 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTLINK
,
2736 target_dir_vp
, DM_RIGHT_NULL
,
2737 src_vp
, DM_RIGHT_NULL
,
2738 target_name
, NULL
, 0, error
, 0);
2743 cancel_flags
|= XFS_TRANS_ABORT
;
2747 xfs_trans_cancel(tp
, cancel_flags
);
2756 bhv_desc_t
*dir_bdp
,
2762 char *dir_name
= VNAME(dentry
);
2764 xfs_inode_t
*cdp
; /* inode of created dir */
2765 bhv_vnode_t
*cvp
; /* vnode of created dir */
2771 xfs_bmap_free_t free_list
;
2772 xfs_fsblock_t first_block
;
2773 bhv_vnode_t
*dir_vp
;
2774 boolean_t dp_joined_to_trans
;
2775 boolean_t created
= B_FALSE
;
2776 int dm_event_sent
= 0;
2778 struct xfs_dquot
*udqp
, *gdqp
;
2783 dir_vp
= BHV_TO_VNODE(dir_bdp
);
2784 dp
= XFS_BHVTOI(dir_bdp
);
2787 if (XFS_FORCED_SHUTDOWN(mp
))
2788 return XFS_ERROR(EIO
);
2790 dir_namelen
= VNAMELEN(dentry
);
2793 dp_joined_to_trans
= B_FALSE
;
2794 dm_di_mode
= vap
->va_mode
;
2796 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_CREATE
)) {
2797 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_CREATE
,
2798 dir_vp
, DM_RIGHT_NULL
, NULL
,
2799 DM_RIGHT_NULL
, dir_name
, NULL
,
2806 /* Return through std_return after this point. */
2808 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
2812 if (dp
->i_d
.di_flags
& XFS_DIFLAG_PROJINHERIT
)
2813 prid
= dp
->i_d
.di_projid
;
2814 else if (vap
->va_mask
& XFS_AT_PROJID
)
2815 prid
= (xfs_prid_t
)vap
->va_projid
;
2817 prid
= (xfs_prid_t
)dfltprid
;
2820 * Make sure that we have allocated dquot(s) on disk.
2822 error
= XFS_QM_DQVOPALLOC(mp
, dp
,
2823 current_fsuid(credp
), current_fsgid(credp
), prid
,
2824 XFS_QMOPT_QUOTALL
| XFS_QMOPT_INHERIT
, &udqp
, &gdqp
);
2828 tp
= xfs_trans_alloc(mp
, XFS_TRANS_MKDIR
);
2829 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
2830 resblks
= XFS_MKDIR_SPACE_RES(mp
, dir_namelen
);
2831 error
= xfs_trans_reserve(tp
, resblks
, XFS_MKDIR_LOG_RES(mp
), 0,
2832 XFS_TRANS_PERM_LOG_RES
, XFS_MKDIR_LOG_COUNT
);
2833 if (error
== ENOSPC
) {
2835 error
= xfs_trans_reserve(tp
, 0, XFS_MKDIR_LOG_RES(mp
), 0,
2836 XFS_TRANS_PERM_LOG_RES
,
2837 XFS_MKDIR_LOG_COUNT
);
2845 xfs_ilock(dp
, XFS_ILOCK_EXCL
);
2848 * Check for directory link count overflow.
2850 if (dp
->i_d
.di_nlink
>= XFS_MAXLINK
) {
2851 error
= XFS_ERROR(EMLINK
);
2856 * Reserve disk quota and the inode.
2858 error
= XFS_TRANS_RESERVE_QUOTA(mp
, tp
, udqp
, gdqp
, resblks
, 1, 0);
2863 (error
= XFS_DIR_CANENTER(mp
, tp
, dp
, dir_name
, dir_namelen
)))
2866 * create the directory inode.
2868 error
= xfs_dir_ialloc(&tp
, dp
, vap
->va_mode
, 2,
2869 0, credp
, prid
, resblks
> 0,
2872 if (error
== ENOSPC
)
2879 * Now we add the directory inode to the transaction.
2880 * We waited until now since xfs_dir_ialloc might start
2881 * a new transaction. Had we joined the transaction
2882 * earlier, the locks might have gotten released.
2885 xfs_trans_ijoin(tp
, dp
, XFS_ILOCK_EXCL
);
2886 dp_joined_to_trans
= B_TRUE
;
2888 XFS_BMAP_INIT(&free_list
, &first_block
);
2890 error
= XFS_DIR_CREATENAME(mp
, tp
, dp
, dir_name
, dir_namelen
,
2891 cdp
->i_ino
, &first_block
, &free_list
,
2892 resblks
? resblks
- XFS_IALLOC_SPACE_RES(mp
) : 0);
2894 ASSERT(error
!= ENOSPC
);
2897 xfs_ichgtime(dp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
2900 * Bump the in memory version number of the parent directory
2901 * so that other processes accessing it will recognize that
2902 * the directory has changed.
2906 error
= XFS_DIR_INIT(mp
, tp
, cdp
, dp
);
2912 error
= xfs_bumplink(tp
, dp
);
2917 cvp
= XFS_ITOV(cdp
);
2925 * Attach the dquots to the new inode and modify the icount incore.
2927 XFS_QM_DQVOPCREATE(mp
, tp
, cdp
, udqp
, gdqp
);
2930 * If this is a synchronous mount, make sure that the
2931 * mkdir transaction goes to disk before returning to
2934 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
2935 xfs_trans_set_sync(tp
);
2938 error
= xfs_bmap_finish(&tp
, &free_list
, first_block
, &committed
);
2944 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
2945 XFS_QM_DQRELE(mp
, udqp
);
2946 XFS_QM_DQRELE(mp
, gdqp
);
2951 /* Fall through to std_return with error = 0 or errno from
2952 * xfs_trans_commit. */
2955 if ( (created
|| (error
!= 0 && dm_event_sent
!= 0)) &&
2956 DM_EVENT_ENABLED(dir_vp
->v_vfsp
, XFS_BHVTOI(dir_bdp
),
2957 DM_EVENT_POSTCREATE
)) {
2958 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTCREATE
,
2959 dir_vp
, DM_RIGHT_NULL
,
2960 created
? XFS_ITOV(cdp
):NULL
,
2963 dm_di_mode
, error
, 0);
2969 xfs_bmap_cancel(&free_list
);
2971 cancel_flags
|= XFS_TRANS_ABORT
;
2973 xfs_trans_cancel(tp
, cancel_flags
);
2974 XFS_QM_DQRELE(mp
, udqp
);
2975 XFS_QM_DQRELE(mp
, gdqp
);
2977 if (!dp_joined_to_trans
&& (dp
!= NULL
)) {
2978 xfs_iunlock(dp
, XFS_ILOCK_EXCL
);
2991 bhv_desc_t
*dir_bdp
,
2995 char *name
= VNAME(dentry
);
2997 xfs_inode_t
*cdp
; /* child directory */
3001 xfs_bmap_free_t free_list
;
3002 xfs_fsblock_t first_block
;
3005 bhv_vnode_t
*dir_vp
;
3011 dir_vp
= BHV_TO_VNODE(dir_bdp
);
3012 dp
= XFS_BHVTOI(dir_bdp
);
3015 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
3017 if (XFS_FORCED_SHUTDOWN(XFS_BHVTOI(dir_bdp
)->i_mount
))
3018 return XFS_ERROR(EIO
);
3019 namelen
= VNAMELEN(dentry
);
3021 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_REMOVE
)) {
3022 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_REMOVE
,
3023 dir_vp
, DM_RIGHT_NULL
,
3024 NULL
, DM_RIGHT_NULL
,
3025 name
, NULL
, 0, 0, 0);
3027 return XFS_ERROR(error
);
3030 /* Return through std_return after this point. */
3035 * We need to get a reference to cdp before we get our log
3036 * reservation. The reason for this is that we cannot call
3037 * xfs_iget for an inode for which we do not have a reference
3038 * once we've acquired a log reservation. This is because the
3039 * inode we are trying to get might be in xfs_inactive going
3040 * for a log reservation. Since we'll have to wait for the
3041 * inactive code to complete before returning from xfs_iget,
3042 * we need to make sure that we don't have log space reserved
3043 * when we call xfs_iget. Instead we get an unlocked reference
3044 * to the inode before getting our log reservation.
3046 error
= xfs_get_dir_entry(dentry
, &cdp
);
3048 REMOVE_DEBUG_TRACE(__LINE__
);
3052 dm_di_mode
= cdp
->i_d
.di_mode
;
3055 * Get the dquots for the inodes.
3057 error
= XFS_QM_DQATTACH(mp
, dp
, 0);
3058 if (!error
&& dp
!= cdp
)
3059 error
= XFS_QM_DQATTACH(mp
, cdp
, 0);
3062 REMOVE_DEBUG_TRACE(__LINE__
);
3066 tp
= xfs_trans_alloc(mp
, XFS_TRANS_RMDIR
);
3067 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
3069 * We try to get the real space reservation first,
3070 * allowing for directory btree deletion(s) implying
3071 * possible bmap insert(s). If we can't get the space
3072 * reservation then we use 0 instead, and avoid the bmap
3073 * btree insert(s) in the directory code by, if the bmap
3074 * insert tries to happen, instead trimming the LAST
3075 * block from the directory.
3077 resblks
= XFS_REMOVE_SPACE_RES(mp
);
3078 error
= xfs_trans_reserve(tp
, resblks
, XFS_REMOVE_LOG_RES(mp
), 0,
3079 XFS_TRANS_PERM_LOG_RES
, XFS_DEFAULT_LOG_COUNT
);
3080 if (error
== ENOSPC
) {
3082 error
= xfs_trans_reserve(tp
, 0, XFS_REMOVE_LOG_RES(mp
), 0,
3083 XFS_TRANS_PERM_LOG_RES
, XFS_DEFAULT_LOG_COUNT
);
3086 ASSERT(error
!= ENOSPC
);
3091 XFS_BMAP_INIT(&free_list
, &first_block
);
3094 * Now lock the child directory inode and the parent directory
3095 * inode in the proper order. This will take care of validating
3096 * that the directory entry for the child directory inode has
3097 * not changed while we were obtaining a log reservation.
3099 error
= xfs_lock_dir_and_entry(dp
, dentry
, cdp
);
3101 xfs_trans_cancel(tp
, cancel_flags
);
3106 xfs_trans_ijoin(tp
, dp
, XFS_ILOCK_EXCL
);
3109 * Only increment the parent directory vnode count if
3110 * we didn't bump it in looking up cdp. The only time
3111 * we don't bump it is when we're looking up ".".
3117 xfs_trans_ijoin(tp
, cdp
, XFS_ILOCK_EXCL
);
3119 ASSERT(cdp
->i_d
.di_nlink
>= 2);
3120 if (cdp
->i_d
.di_nlink
!= 2) {
3121 error
= XFS_ERROR(ENOTEMPTY
);
3124 if (!XFS_DIR_ISEMPTY(mp
, cdp
)) {
3125 error
= XFS_ERROR(ENOTEMPTY
);
3129 error
= XFS_DIR_REMOVENAME(mp
, tp
, dp
, name
, namelen
, cdp
->i_ino
,
3130 &first_block
, &free_list
, resblks
);
3135 xfs_ichgtime(dp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
3138 * Bump the in memory generation count on the parent
3139 * directory so that other can know that it has changed.
3144 * Drop the link from cdp's "..".
3146 error
= xfs_droplink(tp
, dp
);
3152 * Drop the link from dp to cdp.
3154 error
= xfs_droplink(tp
, cdp
);
3160 * Drop the "." link from cdp to self.
3162 error
= xfs_droplink(tp
, cdp
);
3167 /* Determine these before committing transaction */
3168 last_cdp_link
= (cdp
)->i_d
.di_nlink
==0;
3171 * Take an extra ref on the child vnode so that it
3172 * does not go to xfs_inactive() from within the commit.
3177 * If this is a synchronous mount, make sure that the
3178 * rmdir transaction goes to disk before returning to
3181 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
3182 xfs_trans_set_sync(tp
);
3185 error
= xfs_bmap_finish (&tp
, &free_list
, first_block
, &committed
);
3187 xfs_bmap_cancel(&free_list
);
3188 xfs_trans_cancel(tp
, (XFS_TRANS_RELEASE_LOG_RES
|
3194 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
3202 * Let interposed file systems know about removed links.
3204 bhv_vop_link_removed(XFS_ITOV(cdp
), dir_vp
, last_cdp_link
);
3208 /* Fall through to std_return with error = 0 or the errno
3209 * from xfs_trans_commit. */
3211 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_POSTREMOVE
)) {
3212 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTREMOVE
,
3213 dir_vp
, DM_RIGHT_NULL
,
3214 NULL
, DM_RIGHT_NULL
,
3215 name
, NULL
, dm_di_mode
,
3221 xfs_bmap_cancel(&free_list
);
3222 cancel_flags
|= XFS_TRANS_ABORT
;
3226 xfs_trans_cancel(tp
, cancel_flags
);
3234 * Read dp's entries starting at uiop->uio_offset and translate them into
3235 * bufsize bytes worth of struct dirents starting at bufbase.
3239 bhv_desc_t
*dir_bdp
,
3245 xfs_trans_t
*tp
= NULL
;
3249 vn_trace_entry(BHV_TO_VNODE(dir_bdp
), __FUNCTION__
,
3250 (inst_t
*)__return_address
);
3251 dp
= XFS_BHVTOI(dir_bdp
);
3253 if (XFS_FORCED_SHUTDOWN(dp
->i_mount
)) {
3254 return XFS_ERROR(EIO
);
3257 lock_mode
= xfs_ilock_map_shared(dp
);
3258 error
= XFS_DIR_GETDENTS(dp
->i_mount
, tp
, dp
, uiop
, eofp
);
3259 xfs_iunlock_map_shared(dp
, lock_mode
);
3270 bhv_desc_t
*dir_bdp
,
3283 xfs_bmap_free_t free_list
;
3284 xfs_fsblock_t first_block
;
3285 boolean_t dp_joined_to_trans
;
3286 bhv_vnode_t
*dir_vp
;
3289 xfs_fileoff_t first_fsb
;
3290 xfs_filblks_t fs_blocks
;
3292 xfs_bmbt_irec_t mval
[SYMLINK_MAPS
];
3299 struct xfs_dquot
*udqp
, *gdqp
;
3301 char *link_name
= VNAME(dentry
);
3305 dir_vp
= BHV_TO_VNODE(dir_bdp
);
3306 dp
= XFS_BHVTOI(dir_bdp
);
3307 dp_joined_to_trans
= B_FALSE
;
3312 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
3316 if (XFS_FORCED_SHUTDOWN(mp
))
3317 return XFS_ERROR(EIO
);
3319 link_namelen
= VNAMELEN(dentry
);
3322 * Check component lengths of the target path name.
3324 pathlen
= strlen(target_path
);
3325 if (pathlen
>= MAXPATHLEN
) /* total string too long */
3326 return XFS_ERROR(ENAMETOOLONG
);
3327 if (pathlen
>= MAXNAMELEN
) { /* is any component too long? */
3331 for(total
= 0, path
= target_path
; total
< pathlen
;) {
3335 while(*path
== '/') {
3341 * Count up to the next slash or end of path.
3342 * Error out if the component is bigger than MAXNAMELEN.
3344 for(len
= 0; *path
!= '/' && total
< pathlen
;total
++, path
++) {
3345 if (++len
>= MAXNAMELEN
) {
3346 error
= ENAMETOOLONG
;
3353 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_SYMLINK
)) {
3354 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_SYMLINK
, dir_vp
,
3355 DM_RIGHT_NULL
, NULL
, DM_RIGHT_NULL
,
3356 link_name
, target_path
, 0, 0, 0);
3361 /* Return through std_return after this point. */
3364 if (dp
->i_d
.di_flags
& XFS_DIFLAG_PROJINHERIT
)
3365 prid
= dp
->i_d
.di_projid
;
3366 else if (vap
->va_mask
& XFS_AT_PROJID
)
3367 prid
= (xfs_prid_t
)vap
->va_projid
;
3369 prid
= (xfs_prid_t
)dfltprid
;
3372 * Make sure that we have allocated dquot(s) on disk.
3374 error
= XFS_QM_DQVOPALLOC(mp
, dp
,
3375 current_fsuid(credp
), current_fsgid(credp
), prid
,
3376 XFS_QMOPT_QUOTALL
| XFS_QMOPT_INHERIT
, &udqp
, &gdqp
);
3380 tp
= xfs_trans_alloc(mp
, XFS_TRANS_SYMLINK
);
3381 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
3383 * The symlink will fit into the inode data fork?
3384 * There can't be any attributes so we get the whole variable part.
3386 if (pathlen
<= XFS_LITINO(mp
))
3389 fs_blocks
= XFS_B_TO_FSB(mp
, pathlen
);
3390 resblks
= XFS_SYMLINK_SPACE_RES(mp
, link_namelen
, fs_blocks
);
3391 error
= xfs_trans_reserve(tp
, resblks
, XFS_SYMLINK_LOG_RES(mp
), 0,
3392 XFS_TRANS_PERM_LOG_RES
, XFS_SYMLINK_LOG_COUNT
);
3393 if (error
== ENOSPC
&& fs_blocks
== 0) {
3395 error
= xfs_trans_reserve(tp
, 0, XFS_SYMLINK_LOG_RES(mp
), 0,
3396 XFS_TRANS_PERM_LOG_RES
, XFS_SYMLINK_LOG_COUNT
);
3404 xfs_ilock(dp
, XFS_ILOCK_EXCL
);
3407 * Check whether the directory allows new symlinks or not.
3409 if (dp
->i_d
.di_flags
& XFS_DIFLAG_NOSYMLINKS
) {
3410 error
= XFS_ERROR(EPERM
);
3415 * Reserve disk quota : blocks and inode.
3417 error
= XFS_TRANS_RESERVE_QUOTA(mp
, tp
, udqp
, gdqp
, resblks
, 1, 0);
3422 * Check for ability to enter directory entry, if no space reserved.
3425 (error
= XFS_DIR_CANENTER(mp
, tp
, dp
, link_name
, link_namelen
)))
3428 * Initialize the bmap freelist prior to calling either
3429 * bmapi or the directory create code.
3431 XFS_BMAP_INIT(&free_list
, &first_block
);
3434 * Allocate an inode for the symlink.
3436 error
= xfs_dir_ialloc(&tp
, dp
, S_IFLNK
| (vap
->va_mode
&~S_IFMT
),
3437 1, 0, credp
, prid
, resblks
> 0, &ip
, NULL
);
3439 if (error
== ENOSPC
)
3446 xfs_trans_ijoin(tp
, dp
, XFS_ILOCK_EXCL
);
3447 dp_joined_to_trans
= B_TRUE
;
3450 * Also attach the dquot(s) to it, if applicable.
3452 XFS_QM_DQVOPCREATE(mp
, tp
, ip
, udqp
, gdqp
);
3455 resblks
-= XFS_IALLOC_SPACE_RES(mp
);
3457 * If the symlink will fit into the inode, write it inline.
3459 if (pathlen
<= XFS_IFORK_DSIZE(ip
)) {
3460 xfs_idata_realloc(ip
, pathlen
, XFS_DATA_FORK
);
3461 memcpy(ip
->i_df
.if_u1
.if_data
, target_path
, pathlen
);
3462 ip
->i_d
.di_size
= pathlen
;
3465 * The inode was initially created in extent format.
3467 ip
->i_df
.if_flags
&= ~(XFS_IFEXTENTS
| XFS_IFBROOT
);
3468 ip
->i_df
.if_flags
|= XFS_IFINLINE
;
3470 ip
->i_d
.di_format
= XFS_DINODE_FMT_LOCAL
;
3471 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_DDATA
| XFS_ILOG_CORE
);
3475 nmaps
= SYMLINK_MAPS
;
3477 error
= xfs_bmapi(tp
, ip
, first_fsb
, fs_blocks
,
3478 XFS_BMAPI_WRITE
| XFS_BMAPI_METADATA
,
3479 &first_block
, resblks
, mval
, &nmaps
,
3486 resblks
-= fs_blocks
;
3487 ip
->i_d
.di_size
= pathlen
;
3488 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
3490 cur_chunk
= target_path
;
3491 for (n
= 0; n
< nmaps
; n
++) {
3492 d
= XFS_FSB_TO_DADDR(mp
, mval
[n
].br_startblock
);
3493 byte_cnt
= XFS_FSB_TO_B(mp
, mval
[n
].br_blockcount
);
3494 bp
= xfs_trans_get_buf(tp
, mp
->m_ddev_targp
, d
,
3495 BTOBB(byte_cnt
), 0);
3496 ASSERT(bp
&& !XFS_BUF_GETERROR(bp
));
3497 if (pathlen
< byte_cnt
) {
3500 pathlen
-= byte_cnt
;
3502 memcpy(XFS_BUF_PTR(bp
), cur_chunk
, byte_cnt
);
3503 cur_chunk
+= byte_cnt
;
3505 xfs_trans_log_buf(tp
, bp
, 0, byte_cnt
- 1);
3510 * Create the directory entry for the symlink.
3512 error
= XFS_DIR_CREATENAME(mp
, tp
, dp
, link_name
, link_namelen
,
3513 ip
->i_ino
, &first_block
, &free_list
, resblks
);
3517 xfs_ichgtime(dp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
3518 xfs_trans_log_inode(tp
, dp
, XFS_ILOG_CORE
);
3521 * Bump the in memory version number of the parent directory
3522 * so that other processes accessing it will recognize that
3523 * the directory has changed.
3528 * If this is a synchronous mount, make sure that the
3529 * symlink transaction goes to disk before returning to
3532 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
3533 xfs_trans_set_sync(tp
);
3537 * xfs_trans_commit normally decrements the vnode ref count
3538 * when it unlocks the inode. Since we want to return the
3539 * vnode to the caller, we bump the vnode ref count now.
3543 error
= xfs_bmap_finish(&tp
, &free_list
, first_block
, &committed
);
3547 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
3548 XFS_QM_DQRELE(mp
, udqp
);
3549 XFS_QM_DQRELE(mp
, gdqp
);
3551 /* Fall through to std_return with error = 0 or errno from
3552 * xfs_trans_commit */
3554 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, XFS_BHVTOI(dir_bdp
),
3555 DM_EVENT_POSTSYMLINK
)) {
3556 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTSYMLINK
,
3557 dir_vp
, DM_RIGHT_NULL
,
3558 error
? NULL
: XFS_ITOV(ip
),
3559 DM_RIGHT_NULL
, link_name
, target_path
,
3575 xfs_bmap_cancel(&free_list
);
3576 cancel_flags
|= XFS_TRANS_ABORT
;
3578 xfs_trans_cancel(tp
, cancel_flags
);
3579 XFS_QM_DQRELE(mp
, udqp
);
3580 XFS_QM_DQRELE(mp
, gdqp
);
3582 if (!dp_joined_to_trans
&& (dp
!= NULL
)) {
3583 xfs_iunlock(dp
, XFS_ILOCK_EXCL
);
3593 * A fid routine that takes a pointer to a previously allocated
3594 * fid structure (like xfs_fast_fid) but uses a 64 bit inode number.
3604 vn_trace_entry(BHV_TO_VNODE(bdp
), __FUNCTION__
,
3605 (inst_t
*)__return_address
);
3606 ASSERT(sizeof(fid_t
) >= sizeof(xfs_fid2_t
));
3608 xfid
= (xfs_fid2_t
*)fidp
;
3609 ip
= XFS_BHVTOI(bdp
);
3610 xfid
->fid_len
= sizeof(xfs_fid2_t
) - sizeof(xfid
->fid_len
);
3613 * use memcpy because the inode is a long long and there's no
3614 * assurance that xfid->fid_ino is properly aligned.
3616 memcpy(&xfid
->fid_ino
, &ip
->i_ino
, sizeof(xfid
->fid_ino
));
3617 xfid
->fid_gen
= ip
->i_d
.di_gen
;
3634 vp
= BHV_TO_VNODE(bdp
);
3637 ip
= XFS_BHVTOI(bdp
);
3638 if (locktype
== VRWLOCK_WRITE
) {
3639 xfs_ilock(ip
, XFS_IOLOCK_EXCL
);
3640 } else if (locktype
== VRWLOCK_TRY_READ
) {
3641 return xfs_ilock_nowait(ip
, XFS_IOLOCK_SHARED
);
3642 } else if (locktype
== VRWLOCK_TRY_WRITE
) {
3643 return xfs_ilock_nowait(ip
, XFS_IOLOCK_EXCL
);
3645 ASSERT((locktype
== VRWLOCK_READ
) ||
3646 (locktype
== VRWLOCK_WRITE_DIRECT
));
3647 xfs_ilock(ip
, XFS_IOLOCK_SHARED
);
3665 vp
= BHV_TO_VNODE(bdp
);
3668 ip
= XFS_BHVTOI(bdp
);
3669 if (locktype
== VRWLOCK_WRITE
) {
3671 * In the write case, we may have added a new entry to
3672 * the reference cache. This might store a pointer to
3673 * an inode to be released in this inode. If it is there,
3674 * clear the pointer and release the inode after unlocking
3677 xfs_refcache_iunlock(ip
, XFS_IOLOCK_EXCL
);
3679 ASSERT((locktype
== VRWLOCK_READ
) ||
3680 (locktype
== VRWLOCK_WRITE_DIRECT
));
3681 xfs_iunlock(ip
, XFS_IOLOCK_SHARED
);
3693 xfs_inode_log_item_t
*iip
;
3696 ip
= XFS_BHVTOI(bdp
);
3700 if (XFS_FORCED_SHUTDOWN(mp
))
3701 return XFS_ERROR(EIO
);
3704 * Bypass inodes which have already been cleaned by
3705 * the inode flush clustering code inside xfs_iflush
3707 if ((ip
->i_update_core
== 0) &&
3708 ((iip
== NULL
) || !(iip
->ili_format
.ilf_fields
& XFS_ILOG_ALL
)))
3711 if (flags
& FLUSH_LOG
) {
3712 if (iip
&& iip
->ili_last_lsn
) {
3713 xlog_t
*log
= mp
->m_log
;
3715 int s
, log_flags
= XFS_LOG_FORCE
;
3717 s
= GRANT_LOCK(log
);
3718 sync_lsn
= log
->l_last_sync_lsn
;
3719 GRANT_UNLOCK(log
, s
);
3721 if ((XFS_LSN_CMP(iip
->ili_last_lsn
, sync_lsn
) <= 0))
3724 if (flags
& FLUSH_SYNC
)
3725 log_flags
|= XFS_LOG_SYNC
;
3726 return xfs_log_force(mp
, iip
->ili_last_lsn
, log_flags
);
3731 * We make this non-blocking if the inode is contended,
3732 * return EAGAIN to indicate to the caller that they
3733 * did not succeed. This prevents the flush path from
3734 * blocking on inodes inside another operation right
3735 * now, they get caught later by xfs_sync.
3737 if (flags
& FLUSH_INODE
) {
3740 if (xfs_ipincount(ip
))
3743 if (flags
& FLUSH_SYNC
) {
3744 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
3746 } else if (xfs_ilock_nowait(ip
, XFS_ILOCK_SHARED
)) {
3747 if (xfs_ipincount(ip
) || !xfs_iflock_nowait(ip
)) {
3748 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
3755 if (flags
& FLUSH_SYNC
)
3756 flush_flags
= XFS_IFLUSH_SYNC
;
3758 flush_flags
= XFS_IFLUSH_ASYNC
;
3760 error
= xfs_iflush(ip
, flush_flags
);
3761 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
3779 if (!capable(CAP_SYS_ADMIN
))
3780 return XFS_ERROR(EPERM
);
3782 ip
= XFS_BHVTOI(bdp
);
3785 if (XFS_FORCED_SHUTDOWN(mp
))
3786 return XFS_ERROR(EIO
);
3788 tp
= xfs_trans_alloc(mp
, XFS_TRANS_SET_DMATTRS
);
3789 error
= xfs_trans_reserve(tp
, 0, XFS_ICHANGE_LOG_RES (mp
), 0, 0, 0);
3791 xfs_trans_cancel(tp
, 0);
3794 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
3795 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
);
3797 ip
->i_iocore
.io_dmevmask
= ip
->i_d
.di_dmevmask
= evmask
;
3798 ip
->i_iocore
.io_dmstate
= ip
->i_d
.di_dmstate
= state
;
3800 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
3802 error
= xfs_trans_commit(tp
, 0, NULL
);
3814 vp
= BHV_TO_VNODE(bdp
);
3815 ip
= XFS_BHVTOI(bdp
);
3817 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
3819 ASSERT(!VN_MAPPED(vp
));
3821 /* bad inode, get out here ASAP */
3829 ASSERT(XFS_FORCED_SHUTDOWN(ip
->i_mount
) || ip
->i_delayed_blks
== 0);
3832 * Make sure the atime in the XFS inode is correct before freeing the
3835 xfs_synchronize_atime(ip
);
3837 /* If we have nothing to flush with this inode then complete the
3838 * teardown now, otherwise break the link between the xfs inode
3839 * and the linux inode and clean up the xfs inode later. This
3840 * avoids flushing the inode to disk during the delete operation
3843 if (!ip
->i_update_core
&& (ip
->i_itemp
== NULL
)) {
3844 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
3846 return xfs_finish_reclaim(ip
, 1, XFS_IFLUSH_DELWRI_ELSE_SYNC
);
3848 xfs_mount_t
*mp
= ip
->i_mount
;
3850 /* Protect sync from us */
3851 XFS_MOUNT_ILOCK(mp
);
3852 vn_bhv_remove(VN_BHV_HEAD(vp
), XFS_ITOBHV(ip
));
3853 list_add_tail(&ip
->i_reclaim
, &mp
->m_del_inodes
);
3854 ip
->i_flags
|= XFS_IRECLAIMABLE
;
3855 XFS_MOUNT_IUNLOCK(mp
);
3866 xfs_ihash_t
*ih
= ip
->i_hash
;
3867 bhv_vnode_t
*vp
= XFS_ITOV_NULL(ip
);
3870 if (vp
&& VN_BAD(vp
))
3873 /* The hash lock here protects a thread in xfs_iget_core from
3874 * racing with us on linking the inode back with a vnode.
3875 * Once we have the XFS_IRECLAIM flag set it will not touch
3878 write_lock(&ih
->ih_lock
);
3879 if ((ip
->i_flags
& XFS_IRECLAIM
) ||
3880 (!(ip
->i_flags
& XFS_IRECLAIMABLE
) && vp
== NULL
)) {
3881 write_unlock(&ih
->ih_lock
);
3884 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
3888 ip
->i_flags
|= XFS_IRECLAIM
;
3889 write_unlock(&ih
->ih_lock
);
3892 * If the inode is still dirty, then flush it out. If the inode
3893 * is not in the AIL, then it will be OK to flush it delwri as
3894 * long as xfs_iflush() does not keep any references to the inode.
3895 * We leave that decision up to xfs_iflush() since it has the
3896 * knowledge of whether it's OK to simply do a delwri flush of
3897 * the inode or whether we need to wait until the inode is
3898 * pulled from the AIL.
3899 * We get the flush lock regardless, though, just to make sure
3900 * we don't free it while it is being flushed.
3902 if (!XFS_FORCED_SHUTDOWN(ip
->i_mount
)) {
3904 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
3908 if (ip
->i_update_core
||
3909 ((ip
->i_itemp
!= NULL
) &&
3910 (ip
->i_itemp
->ili_format
.ilf_fields
!= 0))) {
3911 error
= xfs_iflush(ip
, sync_mode
);
3913 * If we hit an error, typically because of filesystem
3914 * shutdown, we don't need to let vn_reclaim to know
3915 * because we're gonna reclaim the inode anyway.
3918 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
3921 xfs_iflock(ip
); /* synchronize with xfs_iflush_done */
3924 ASSERT(ip
->i_update_core
== 0);
3925 ASSERT(ip
->i_itemp
== NULL
||
3926 ip
->i_itemp
->ili_format
.ilf_fields
== 0);
3927 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
3928 } else if (locked
) {
3930 * We are not interested in doing an iflush if we're
3931 * in the process of shutting down the filesystem forcibly.
3932 * So, just reclaim the inode.
3935 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
3944 xfs_finish_reclaim_all(xfs_mount_t
*mp
, int noblock
)
3947 xfs_inode_t
*ip
, *n
;
3952 XFS_MOUNT_ILOCK(mp
);
3953 list_for_each_entry_safe(ip
, n
, &mp
->m_del_inodes
, i_reclaim
) {
3955 if (xfs_ilock_nowait(ip
, XFS_ILOCK_EXCL
) == 0)
3957 if (xfs_ipincount(ip
) ||
3958 !xfs_iflock_nowait(ip
)) {
3959 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
3963 XFS_MOUNT_IUNLOCK(mp
);
3964 if (xfs_finish_reclaim(ip
, noblock
,
3965 XFS_IFLUSH_DELWRI_ELSE_ASYNC
))
3974 XFS_MOUNT_IUNLOCK(mp
);
3979 * xfs_alloc_file_space()
3980 * This routine allocates disk space for the given file.
3982 * If alloc_type == 0, this request is for an ALLOCSP type
3983 * request which will change the file size. In this case, no
3984 * DMAPI event will be generated by the call. A TRUNCATE event
3985 * will be generated later by xfs_setattr.
3987 * If alloc_type != 0, this request is for a RESVSP type
3988 * request, and a DMAPI DM_EVENT_WRITE will be generated if the
3989 * lower block boundary byte address is less than the file's
3998 xfs_alloc_file_space(
4005 xfs_mount_t
*mp
= ip
->i_mount
;
4007 xfs_filblks_t allocated_fsb
;
4008 xfs_filblks_t allocatesize_fsb
;
4009 xfs_extlen_t extsz
, temp
;
4010 xfs_fileoff_t startoffset_fsb
;
4011 xfs_fsblock_t firstfsb
;
4017 xfs_bmbt_irec_t imaps
[1], *imapp
;
4018 xfs_bmap_free_t free_list
;
4019 uint qblocks
, resblks
, resrtextents
;
4023 vn_trace_entry(XFS_ITOV(ip
), __FUNCTION__
, (inst_t
*)__return_address
);
4025 if (XFS_FORCED_SHUTDOWN(mp
))
4026 return XFS_ERROR(EIO
);
4028 rt
= XFS_IS_REALTIME_INODE(ip
);
4030 if (!(extsz
= ip
->i_d
.di_extsize
))
4031 extsz
= mp
->m_sb
.sb_rextsize
;
4033 extsz
= ip
->i_d
.di_extsize
;
4036 if ((error
= XFS_QM_DQATTACH(mp
, ip
, 0)))
4040 return XFS_ERROR(EINVAL
);
4046 bmapi_flag
= XFS_BMAPI_WRITE
| (alloc_type
? XFS_BMAPI_PREALLOC
: 0);
4047 startoffset_fsb
= XFS_B_TO_FSBT(mp
, offset
);
4048 allocatesize_fsb
= XFS_B_TO_FSB(mp
, count
);
4050 /* Generate a DMAPI event if needed. */
4051 if (alloc_type
!= 0 && offset
< ip
->i_d
.di_size
&&
4052 (attr_flags
&ATTR_DMI
) == 0 &&
4053 DM_EVENT_ENABLED(XFS_MTOVFS(mp
), ip
, DM_EVENT_WRITE
)) {
4054 xfs_off_t end_dmi_offset
;
4056 end_dmi_offset
= offset
+len
;
4057 if (end_dmi_offset
> ip
->i_d
.di_size
)
4058 end_dmi_offset
= ip
->i_d
.di_size
;
4059 error
= XFS_SEND_DATA(mp
, DM_EVENT_WRITE
, XFS_ITOV(ip
),
4060 offset
, end_dmi_offset
- offset
,
4067 * Allocate file space until done or until there is an error
4070 while (allocatesize_fsb
&& !error
) {
4074 * Determine space reservations for data/realtime.
4076 if (unlikely(extsz
)) {
4077 s
= startoffset_fsb
;
4080 e
= startoffset_fsb
+ allocatesize_fsb
;
4081 if ((temp
= do_mod(startoffset_fsb
, extsz
)))
4083 if ((temp
= do_mod(e
, extsz
)))
4087 e
= allocatesize_fsb
;
4091 resrtextents
= qblocks
= (uint
)(e
- s
);
4092 resrtextents
/= mp
->m_sb
.sb_rextsize
;
4093 resblks
= XFS_DIOSTRAT_SPACE_RES(mp
, 0);
4094 quota_flag
= XFS_QMOPT_RES_RTBLKS
;
4097 resblks
= qblocks
= \
4098 XFS_DIOSTRAT_SPACE_RES(mp
, (uint
)(e
- s
));
4099 quota_flag
= XFS_QMOPT_RES_REGBLKS
;
4103 * Allocate and setup the transaction.
4105 tp
= xfs_trans_alloc(mp
, XFS_TRANS_DIOSTRAT
);
4106 error
= xfs_trans_reserve(tp
, resblks
,
4107 XFS_WRITE_LOG_RES(mp
), resrtextents
,
4108 XFS_TRANS_PERM_LOG_RES
,
4109 XFS_WRITE_LOG_COUNT
);
4111 * Check for running out of space
4115 * Free the transaction structure.
4117 ASSERT(error
== ENOSPC
|| XFS_FORCED_SHUTDOWN(mp
));
4118 xfs_trans_cancel(tp
, 0);
4121 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
4122 error
= XFS_TRANS_RESERVE_QUOTA_NBLKS(mp
, tp
, ip
,
4123 qblocks
, 0, quota_flag
);
4127 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
);
4128 xfs_trans_ihold(tp
, ip
);
4131 * Issue the xfs_bmapi() call to allocate the blocks
4133 XFS_BMAP_INIT(&free_list
, &firstfsb
);
4134 error
= XFS_BMAPI(mp
, tp
, &ip
->i_iocore
, startoffset_fsb
,
4135 allocatesize_fsb
, bmapi_flag
,
4136 &firstfsb
, 0, imapp
, &nimaps
,
4143 * Complete the transaction
4145 error
= xfs_bmap_finish(&tp
, &free_list
, firstfsb
, &committed
);
4150 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
4151 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
4156 allocated_fsb
= imapp
->br_blockcount
;
4159 error
= XFS_ERROR(ENOSPC
);
4163 startoffset_fsb
+= allocated_fsb
;
4164 allocatesize_fsb
-= allocated_fsb
;
4167 if (error
== ENOSPC
&& (attr_flags
&ATTR_DMI
) == 0 &&
4168 DM_EVENT_ENABLED(XFS_MTOVFS(mp
), ip
, DM_EVENT_NOSPACE
)) {
4170 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_NOSPACE
,
4171 XFS_ITOV(ip
), DM_RIGHT_NULL
,
4172 XFS_ITOV(ip
), DM_RIGHT_NULL
,
4173 NULL
, NULL
, 0, 0, 0); /* Delay flag intentionally unused */
4175 goto retry
; /* Maybe DMAPI app. has made space */
4176 /* else fall through with error from XFS_SEND_DATA */
4181 error0
: /* Cancel bmap, unlock inode, unreserve quota blocks, cancel trans */
4182 xfs_bmap_cancel(&free_list
);
4183 XFS_TRANS_UNRESERVE_QUOTA_NBLKS(mp
, tp
, ip
, qblocks
, 0, quota_flag
);
4185 error1
: /* Just cancel transaction */
4186 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
| XFS_TRANS_ABORT
);
4187 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
4188 goto dmapi_enospc_check
;
4192 * Zero file bytes between startoff and endoff inclusive.
4193 * The iolock is held exclusive and no blocks are buffered.
4196 xfs_zero_remaining_bytes(
4201 xfs_bmbt_irec_t imap
;
4202 xfs_fileoff_t offset_fsb
;
4203 xfs_off_t lastoffset
;
4206 xfs_mount_t
*mp
= ip
->i_mount
;
4210 bp
= xfs_buf_get_noaddr(mp
->m_sb
.sb_blocksize
,
4211 ip
->i_d
.di_flags
& XFS_DIFLAG_REALTIME
?
4212 mp
->m_rtdev_targp
: mp
->m_ddev_targp
);
4214 for (offset
= startoff
; offset
<= endoff
; offset
= lastoffset
+ 1) {
4215 offset_fsb
= XFS_B_TO_FSBT(mp
, offset
);
4217 error
= XFS_BMAPI(mp
, NULL
, &ip
->i_iocore
, offset_fsb
, 1, 0,
4218 NULL
, 0, &imap
, &nimap
, NULL
, NULL
);
4219 if (error
|| nimap
< 1)
4221 ASSERT(imap
.br_blockcount
>= 1);
4222 ASSERT(imap
.br_startoff
== offset_fsb
);
4223 lastoffset
= XFS_FSB_TO_B(mp
, imap
.br_startoff
+ 1) - 1;
4224 if (lastoffset
> endoff
)
4225 lastoffset
= endoff
;
4226 if (imap
.br_startblock
== HOLESTARTBLOCK
)
4228 ASSERT(imap
.br_startblock
!= DELAYSTARTBLOCK
);
4229 if (imap
.br_state
== XFS_EXT_UNWRITTEN
)
4232 XFS_BUF_UNWRITE(bp
);
4234 XFS_BUF_SET_ADDR(bp
, XFS_FSB_TO_DB(ip
, imap
.br_startblock
));
4236 if ((error
= xfs_iowait(bp
))) {
4237 xfs_ioerror_alert("xfs_zero_remaining_bytes(read)",
4238 mp
, bp
, XFS_BUF_ADDR(bp
));
4241 memset(XFS_BUF_PTR(bp
) +
4242 (offset
- XFS_FSB_TO_B(mp
, imap
.br_startoff
)),
4243 0, lastoffset
- offset
+ 1);
4248 if ((error
= xfs_iowait(bp
))) {
4249 xfs_ioerror_alert("xfs_zero_remaining_bytes(write)",
4250 mp
, bp
, XFS_BUF_ADDR(bp
));
4259 * xfs_free_file_space()
4260 * This routine frees disk space for the given file.
4262 * This routine is only called by xfs_change_file_space
4263 * for an UNRESVSP type call.
4271 xfs_free_file_space(
4280 xfs_off_t end_dmi_offset
;
4281 xfs_fileoff_t endoffset_fsb
;
4283 xfs_fsblock_t firstfsb
;
4284 xfs_bmap_free_t free_list
;
4286 xfs_bmbt_irec_t imap
;
4294 xfs_fileoff_t startoffset_fsb
;
4296 int need_iolock
= 1;
4301 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
4303 if ((error
= XFS_QM_DQATTACH(mp
, ip
, 0)))
4307 if (len
<= 0) /* if nothing being freed */
4309 rt
= (ip
->i_d
.di_flags
& XFS_DIFLAG_REALTIME
);
4310 startoffset_fsb
= XFS_B_TO_FSB(mp
, offset
);
4311 end_dmi_offset
= offset
+ len
;
4312 endoffset_fsb
= XFS_B_TO_FSBT(mp
, end_dmi_offset
);
4314 if (offset
< ip
->i_d
.di_size
&&
4315 (attr_flags
& ATTR_DMI
) == 0 &&
4316 DM_EVENT_ENABLED(XFS_MTOVFS(mp
), ip
, DM_EVENT_WRITE
)) {
4317 if (end_dmi_offset
> ip
->i_d
.di_size
)
4318 end_dmi_offset
= ip
->i_d
.di_size
;
4319 error
= XFS_SEND_DATA(mp
, DM_EVENT_WRITE
, vp
,
4320 offset
, end_dmi_offset
- offset
,
4321 AT_DELAY_FLAG(attr_flags
), NULL
);
4326 if (attr_flags
& ATTR_NOLOCK
)
4329 xfs_ilock(ip
, XFS_IOLOCK_EXCL
);
4330 vn_iowait(vp
); /* wait for the completion of any pending DIOs */
4333 rounding
= MAX((__uint8_t
)(1 << mp
->m_sb
.sb_blocklog
),
4335 ilen
= len
+ (offset
& (rounding
- 1));
4336 ioffset
= offset
& ~(rounding
- 1);
4337 if (ilen
& (rounding
- 1))
4338 ilen
= (ilen
+ rounding
) & ~(rounding
- 1);
4340 if (VN_CACHED(vp
) != 0) {
4341 xfs_inval_cached_trace(&ip
->i_iocore
, ioffset
, -1,
4342 ctooff(offtoct(ioffset
)), -1);
4343 bhv_vop_flushinval_pages(vp
, ctooff(offtoct(ioffset
)),
4344 -1, FI_REMAPF_LOCKED
);
4348 * Need to zero the stuff we're not freeing, on disk.
4349 * If its a realtime file & can't use unwritten extents then we
4350 * actually need to zero the extent edges. Otherwise xfs_bunmapi
4351 * will take care of it for us.
4353 if (rt
&& !XFS_SB_VERSION_HASEXTFLGBIT(&mp
->m_sb
)) {
4355 error
= XFS_BMAPI(mp
, NULL
, &ip
->i_iocore
, startoffset_fsb
,
4356 1, 0, NULL
, 0, &imap
, &nimap
, NULL
, NULL
);
4358 goto out_unlock_iolock
;
4359 ASSERT(nimap
== 0 || nimap
== 1);
4360 if (nimap
&& imap
.br_startblock
!= HOLESTARTBLOCK
) {
4363 ASSERT(imap
.br_startblock
!= DELAYSTARTBLOCK
);
4364 block
= imap
.br_startblock
;
4365 mod
= do_div(block
, mp
->m_sb
.sb_rextsize
);
4367 startoffset_fsb
+= mp
->m_sb
.sb_rextsize
- mod
;
4370 error
= XFS_BMAPI(mp
, NULL
, &ip
->i_iocore
, endoffset_fsb
- 1,
4371 1, 0, NULL
, 0, &imap
, &nimap
, NULL
, NULL
);
4373 goto out_unlock_iolock
;
4374 ASSERT(nimap
== 0 || nimap
== 1);
4375 if (nimap
&& imap
.br_startblock
!= HOLESTARTBLOCK
) {
4376 ASSERT(imap
.br_startblock
!= DELAYSTARTBLOCK
);
4378 if (mod
&& (mod
!= mp
->m_sb
.sb_rextsize
))
4379 endoffset_fsb
-= mod
;
4382 if ((done
= (endoffset_fsb
<= startoffset_fsb
)))
4384 * One contiguous piece to clear
4386 error
= xfs_zero_remaining_bytes(ip
, offset
, offset
+ len
- 1);
4389 * Some full blocks, possibly two pieces to clear
4391 if (offset
< XFS_FSB_TO_B(mp
, startoffset_fsb
))
4392 error
= xfs_zero_remaining_bytes(ip
, offset
,
4393 XFS_FSB_TO_B(mp
, startoffset_fsb
) - 1);
4395 XFS_FSB_TO_B(mp
, endoffset_fsb
) < offset
+ len
)
4396 error
= xfs_zero_remaining_bytes(ip
,
4397 XFS_FSB_TO_B(mp
, endoffset_fsb
),
4402 * free file space until done or until there is an error
4404 resblks
= XFS_DIOSTRAT_SPACE_RES(mp
, 0);
4405 while (!error
&& !done
) {
4408 * allocate and setup the transaction
4410 tp
= xfs_trans_alloc(mp
, XFS_TRANS_DIOSTRAT
);
4411 error
= xfs_trans_reserve(tp
,
4413 XFS_WRITE_LOG_RES(mp
),
4415 XFS_TRANS_PERM_LOG_RES
,
4416 XFS_WRITE_LOG_COUNT
);
4419 * check for running out of space
4423 * Free the transaction structure.
4425 ASSERT(error
== ENOSPC
|| XFS_FORCED_SHUTDOWN(mp
));
4426 xfs_trans_cancel(tp
, 0);
4429 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
4430 error
= XFS_TRANS_RESERVE_QUOTA(mp
, tp
,
4431 ip
->i_udquot
, ip
->i_gdquot
, resblks
, 0,
4432 XFS_QMOPT_RES_REGBLKS
);
4436 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
);
4437 xfs_trans_ihold(tp
, ip
);
4440 * issue the bunmapi() call to free the blocks
4442 XFS_BMAP_INIT(&free_list
, &firstfsb
);
4443 error
= XFS_BUNMAPI(mp
, tp
, &ip
->i_iocore
, startoffset_fsb
,
4444 endoffset_fsb
- startoffset_fsb
,
4445 0, 2, &firstfsb
, &free_list
, NULL
, &done
);
4451 * complete the transaction
4453 error
= xfs_bmap_finish(&tp
, &free_list
, firstfsb
, &committed
);
4458 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
4459 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
4464 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
4468 xfs_bmap_cancel(&free_list
);
4470 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
| XFS_TRANS_ABORT
);
4471 xfs_iunlock(ip
, need_iolock
? (XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
) :
4477 * xfs_change_file_space()
4478 * This routine allocates or frees disk space for the given file.
4479 * The user specified parameters are checked for alignment and size
4488 xfs_change_file_space(
4502 xfs_off_t startoffset
;
4508 vp
= BHV_TO_VNODE(bdp
);
4509 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
4511 ip
= XFS_BHVTOI(bdp
);
4515 * must be a regular file and have write permission
4518 return XFS_ERROR(EINVAL
);
4520 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
4522 if ((error
= xfs_iaccess(ip
, S_IWUSR
, credp
))) {
4523 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
4527 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
4529 switch (bf
->l_whence
) {
4530 case 0: /*SEEK_SET*/
4532 case 1: /*SEEK_CUR*/
4533 bf
->l_start
+= offset
;
4535 case 2: /*SEEK_END*/
4536 bf
->l_start
+= ip
->i_d
.di_size
;
4539 return XFS_ERROR(EINVAL
);
4542 llen
= bf
->l_len
> 0 ? bf
->l_len
- 1 : bf
->l_len
;
4544 if ( (bf
->l_start
< 0)
4545 || (bf
->l_start
> XFS_MAXIOFFSET(mp
))
4546 || (bf
->l_start
+ llen
< 0)
4547 || (bf
->l_start
+ llen
> XFS_MAXIOFFSET(mp
)))
4548 return XFS_ERROR(EINVAL
);
4552 startoffset
= bf
->l_start
;
4553 fsize
= ip
->i_d
.di_size
;
4556 * XFS_IOC_RESVSP and XFS_IOC_UNRESVSP will reserve or unreserve
4558 * These calls do NOT zero the data space allocated to the file,
4559 * nor do they change the file size.
4561 * XFS_IOC_ALLOCSP and XFS_IOC_FREESP will allocate and free file
4563 * These calls cause the new file data to be zeroed and the file
4564 * size to be changed.
4566 setprealloc
= clrprealloc
= 0;
4569 case XFS_IOC_RESVSP
:
4570 case XFS_IOC_RESVSP64
:
4571 error
= xfs_alloc_file_space(ip
, startoffset
, bf
->l_len
,
4578 case XFS_IOC_UNRESVSP
:
4579 case XFS_IOC_UNRESVSP64
:
4580 if ((error
= xfs_free_file_space(ip
, startoffset
, bf
->l_len
,
4585 case XFS_IOC_ALLOCSP
:
4586 case XFS_IOC_ALLOCSP64
:
4587 case XFS_IOC_FREESP
:
4588 case XFS_IOC_FREESP64
:
4589 if (startoffset
> fsize
) {
4590 error
= xfs_alloc_file_space(ip
, fsize
,
4591 startoffset
- fsize
, 0, attr_flags
);
4596 va
.va_mask
= XFS_AT_SIZE
;
4597 va
.va_size
= startoffset
;
4599 error
= xfs_setattr(bdp
, &va
, attr_flags
, credp
);
4609 return XFS_ERROR(EINVAL
);
4613 * update the inode timestamp, mode, and prealloc flag bits
4615 tp
= xfs_trans_alloc(mp
, XFS_TRANS_WRITEID
);
4617 if ((error
= xfs_trans_reserve(tp
, 0, XFS_WRITEID_LOG_RES(mp
),
4620 xfs_trans_cancel(tp
, 0);
4624 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
4626 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
);
4627 xfs_trans_ihold(tp
, ip
);
4629 if ((attr_flags
& ATTR_DMI
) == 0) {
4630 ip
->i_d
.di_mode
&= ~S_ISUID
;
4633 * Note that we don't have to worry about mandatory
4634 * file locking being disabled here because we only
4635 * clear the S_ISGID bit if the Group execute bit is
4636 * on, but if it was on then mandatory locking wouldn't
4637 * have been enabled.
4639 if (ip
->i_d
.di_mode
& S_IXGRP
)
4640 ip
->i_d
.di_mode
&= ~S_ISGID
;
4642 xfs_ichgtime(ip
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
4645 ip
->i_d
.di_flags
|= XFS_DIFLAG_PREALLOC
;
4646 else if (clrprealloc
)
4647 ip
->i_d
.di_flags
&= ~XFS_DIFLAG_PREALLOC
;
4649 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
4650 xfs_trans_set_sync(tp
);
4652 error
= xfs_trans_commit(tp
, 0, NULL
);
4654 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
4659 bhv_vnodeops_t xfs_vnodeops
= {
4660 BHV_IDENTITY_INIT(VN_BHV_XFS
,VNODE_POSITION_XFS
),
4661 .vop_open
= xfs_open
,
4662 .vop_close
= xfs_close
,
4663 .vop_read
= xfs_read
,
4664 #ifdef HAVE_SENDFILE
4665 .vop_sendfile
= xfs_sendfile
,
4668 .vop_splice_read
= xfs_splice_read
,
4669 .vop_splice_write
= xfs_splice_write
,
4671 .vop_write
= xfs_write
,
4672 .vop_ioctl
= xfs_ioctl
,
4673 .vop_getattr
= xfs_getattr
,
4674 .vop_setattr
= xfs_setattr
,
4675 .vop_access
= xfs_access
,
4676 .vop_lookup
= xfs_lookup
,
4677 .vop_create
= xfs_create
,
4678 .vop_remove
= xfs_remove
,
4679 .vop_link
= xfs_link
,
4680 .vop_rename
= xfs_rename
,
4681 .vop_mkdir
= xfs_mkdir
,
4682 .vop_rmdir
= xfs_rmdir
,
4683 .vop_readdir
= xfs_readdir
,
4684 .vop_symlink
= xfs_symlink
,
4685 .vop_readlink
= xfs_readlink
,
4686 .vop_fsync
= xfs_fsync
,
4687 .vop_inactive
= xfs_inactive
,
4688 .vop_fid2
= xfs_fid2
,
4689 .vop_rwlock
= xfs_rwlock
,
4690 .vop_rwunlock
= xfs_rwunlock
,
4691 .vop_bmap
= xfs_bmap
,
4692 .vop_reclaim
= xfs_reclaim
,
4693 .vop_attr_get
= xfs_attr_get
,
4694 .vop_attr_set
= xfs_attr_set
,
4695 .vop_attr_remove
= xfs_attr_remove
,
4696 .vop_attr_list
= xfs_attr_list
,
4697 .vop_link_removed
= (vop_link_removed_t
)fs_noval
,
4698 .vop_vnode_change
= (vop_vnode_change_t
)fs_noval
,
4699 .vop_tosspages
= fs_tosspages
,
4700 .vop_flushinval_pages
= fs_flushinval_pages
,
4701 .vop_flush_pages
= fs_flush_pages
,
4702 .vop_release
= xfs_release
,
4703 .vop_iflush
= xfs_inode_flush
,