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"
29 #include "xfs_dmapi.h"
30 #include "xfs_mount.h"
31 #include "xfs_da_btree.h"
32 #include "xfs_bmap_btree.h"
33 #include "xfs_alloc_btree.h"
34 #include "xfs_ialloc_btree.h"
35 #include "xfs_dir2_sf.h"
36 #include "xfs_attr_sf.h"
37 #include "xfs_dinode.h"
38 #include "xfs_inode.h"
39 #include "xfs_inode_item.h"
40 #include "xfs_itable.h"
41 #include "xfs_btree.h"
42 #include "xfs_ialloc.h"
43 #include "xfs_alloc.h"
47 #include "xfs_error.h"
48 #include "xfs_quota.h"
49 #include "xfs_utils.h"
50 #include "xfs_rtalloc.h"
51 #include "xfs_refcache.h"
52 #include "xfs_trans_space.h"
53 #include "xfs_log_priv.h"
61 bhv_vnode_t
*vp
= BHV_TO_VNODE(bdp
);
62 xfs_inode_t
*ip
= XFS_BHVTOI(bdp
);
64 if (XFS_FORCED_SHUTDOWN(ip
->i_mount
))
65 return XFS_ERROR(EIO
);
68 * If it's a directory with any blocks, read-ahead block 0
69 * as we're almost certain to have the next operation be a read there.
71 if (VN_ISDIR(vp
) && ip
->i_d
.di_nextents
> 0) {
72 mode
= xfs_ilock_map_shared(ip
);
73 if (ip
->i_d
.di_nextents
> 0)
74 (void)xfs_da_reada_buf(NULL
, ip
, 0, XFS_DATA_FORK
);
75 xfs_iunlock(ip
, mode
);
84 lastclose_t lastclose
,
87 bhv_vnode_t
*vp
= BHV_TO_VNODE(bdp
);
88 xfs_inode_t
*ip
= XFS_BHVTOI(bdp
);
90 if (XFS_FORCED_SHUTDOWN(ip
->i_mount
))
91 return XFS_ERROR(EIO
);
93 if (lastclose
!= L_TRUE
|| !VN_ISREG(vp
))
97 * If we previously truncated this file and removed old data in
98 * the process, we want to initiate "early" writeout on the last
99 * close. This is an attempt to combat the notorious NULL files
100 * problem which is particularly noticable from a truncate down,
101 * buffered (re-)write (delalloc), followed by a crash. What we
102 * are effectively doing here is significantly reducing the time
103 * window where we'd otherwise be exposed to that problem.
105 if (VUNTRUNCATE(vp
) && VN_DIRTY(vp
) && ip
->i_delayed_blks
> 0)
106 return bhv_vop_flush_pages(vp
, 0, -1, XFS_B_ASYNC
, FI_NONE
);
124 vp
= BHV_TO_VNODE(bdp
);
125 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
127 ip
= XFS_BHVTOI(bdp
);
130 if (XFS_FORCED_SHUTDOWN(mp
))
131 return XFS_ERROR(EIO
);
133 if (!(flags
& ATTR_LAZY
))
134 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
136 vap
->va_size
= ip
->i_d
.di_size
;
137 if (vap
->va_mask
== XFS_AT_SIZE
)
141 XFS_FSB_TO_BB(mp
, ip
->i_d
.di_nblocks
+ ip
->i_delayed_blks
);
142 vap
->va_nodeid
= ip
->i_ino
;
144 vap
->va_nodeid
+= mp
->m_inoadd
;
146 vap
->va_nlink
= ip
->i_d
.di_nlink
;
149 * Quick exit for non-stat callers
152 ~(XFS_AT_SIZE
|XFS_AT_FSID
|XFS_AT_NODEID
|
153 XFS_AT_NLINK
|XFS_AT_BLKSIZE
)) == 0)
157 * Copy from in-core inode.
159 vap
->va_mode
= ip
->i_d
.di_mode
;
160 vap
->va_uid
= ip
->i_d
.di_uid
;
161 vap
->va_gid
= ip
->i_d
.di_gid
;
162 vap
->va_projid
= ip
->i_d
.di_projid
;
165 * Check vnode type block/char vs. everything else.
167 switch (ip
->i_d
.di_mode
& S_IFMT
) {
170 vap
->va_rdev
= ip
->i_df
.if_u2
.if_rdev
;
171 vap
->va_blocksize
= BLKDEV_IOSIZE
;
176 if (!(ip
->i_d
.di_flags
& XFS_DIFLAG_REALTIME
)) {
177 vap
->va_blocksize
= xfs_preferred_iosize(mp
);
181 * If the file blocks are being allocated from a
182 * realtime partition, then return the inode's
183 * realtime extent size or the realtime volume's
186 vap
->va_blocksize
= ip
->i_d
.di_extsize
?
187 (ip
->i_d
.di_extsize
<< mp
->m_sb
.sb_blocklog
) :
188 (mp
->m_sb
.sb_rextsize
<< mp
->m_sb
.sb_blocklog
);
193 vn_atime_to_timespec(vp
, &vap
->va_atime
);
194 vap
->va_mtime
.tv_sec
= ip
->i_d
.di_mtime
.t_sec
;
195 vap
->va_mtime
.tv_nsec
= ip
->i_d
.di_mtime
.t_nsec
;
196 vap
->va_ctime
.tv_sec
= ip
->i_d
.di_ctime
.t_sec
;
197 vap
->va_ctime
.tv_nsec
= ip
->i_d
.di_ctime
.t_nsec
;
200 * Exit for stat callers. See if any of the rest of the fields
201 * to be filled in are needed.
204 (XFS_AT_XFLAGS
|XFS_AT_EXTSIZE
|XFS_AT_NEXTENTS
|XFS_AT_ANEXTENTS
|
205 XFS_AT_GENCOUNT
|XFS_AT_VCODE
)) == 0)
209 * Convert di_flags to xflags.
211 vap
->va_xflags
= xfs_ip2xflags(ip
);
214 * Exit for inode revalidate. See if any of the rest of
215 * the fields to be filled in are needed.
218 (XFS_AT_EXTSIZE
|XFS_AT_NEXTENTS
|XFS_AT_ANEXTENTS
|
219 XFS_AT_GENCOUNT
|XFS_AT_VCODE
)) == 0)
222 vap
->va_extsize
= ip
->i_d
.di_extsize
<< mp
->m_sb
.sb_blocklog
;
224 (ip
->i_df
.if_flags
& XFS_IFEXTENTS
) ?
225 ip
->i_df
.if_bytes
/ sizeof(xfs_bmbt_rec_t
) :
229 (ip
->i_afp
->if_flags
& XFS_IFEXTENTS
) ?
230 ip
->i_afp
->if_bytes
/ sizeof(xfs_bmbt_rec_t
) :
231 ip
->i_d
.di_anextents
;
233 vap
->va_anextents
= 0;
234 vap
->va_gen
= ip
->i_d
.di_gen
;
237 if (!(flags
& ATTR_LAZY
))
238 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
264 xfs_prid_t projid
=0, iprojid
=0;
265 int mandlock_before
, mandlock_after
;
266 struct xfs_dquot
*udqp
, *gdqp
, *olddquot1
, *olddquot2
;
270 vp
= BHV_TO_VNODE(bdp
);
271 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
273 if (vp
->v_vfsp
->vfs_flag
& VFS_RDONLY
)
274 return XFS_ERROR(EROFS
);
277 * Cannot set certain attributes.
280 if (mask
& XFS_AT_NOSET
) {
281 return XFS_ERROR(EINVAL
);
284 ip
= XFS_BHVTOI(bdp
);
287 if (XFS_FORCED_SHUTDOWN(mp
))
288 return XFS_ERROR(EIO
);
291 * Timestamps do not need to be logged and hence do not
292 * need to be done within a transaction.
294 if (mask
& XFS_AT_UPDTIMES
) {
295 ASSERT((mask
& ~XFS_AT_UPDTIMES
) == 0);
296 timeflags
= ((mask
& XFS_AT_UPDATIME
) ? XFS_ICHGTIME_ACC
: 0) |
297 ((mask
& XFS_AT_UPDCTIME
) ? XFS_ICHGTIME_CHG
: 0) |
298 ((mask
& XFS_AT_UPDMTIME
) ? XFS_ICHGTIME_MOD
: 0);
299 xfs_ichgtime(ip
, timeflags
);
303 olddquot1
= olddquot2
= NULL
;
307 * If disk quotas is on, we make sure that the dquots do exist on disk,
308 * before we start any other transactions. Trying to do this later
309 * is messy. We don't care to take a readlock to look at the ids
310 * in inode here, because we can't hold it across the trans_reserve.
311 * If the IDs do change before we take the ilock, we're covered
312 * because the i_*dquot fields will get updated anyway.
314 if (XFS_IS_QUOTA_ON(mp
) &&
315 (mask
& (XFS_AT_UID
|XFS_AT_GID
|XFS_AT_PROJID
))) {
318 if ((mask
& XFS_AT_UID
) && XFS_IS_UQUOTA_ON(mp
)) {
320 qflags
|= XFS_QMOPT_UQUOTA
;
322 uid
= ip
->i_d
.di_uid
;
324 if ((mask
& XFS_AT_GID
) && XFS_IS_GQUOTA_ON(mp
)) {
326 qflags
|= XFS_QMOPT_GQUOTA
;
328 gid
= ip
->i_d
.di_gid
;
330 if ((mask
& XFS_AT_PROJID
) && XFS_IS_PQUOTA_ON(mp
)) {
331 projid
= vap
->va_projid
;
332 qflags
|= XFS_QMOPT_PQUOTA
;
334 projid
= ip
->i_d
.di_projid
;
337 * We take a reference when we initialize udqp and gdqp,
338 * so it is important that we never blindly double trip on
339 * the same variable. See xfs_create() for an example.
341 ASSERT(udqp
== NULL
);
342 ASSERT(gdqp
== NULL
);
343 code
= XFS_QM_DQVOPALLOC(mp
, ip
, uid
, gid
, projid
, qflags
,
350 * For the other attributes, we acquire the inode lock and
351 * first do an error checking pass.
354 lock_flags
= XFS_ILOCK_EXCL
;
355 if (flags
& ATTR_NOLOCK
)
357 if (!(mask
& XFS_AT_SIZE
)) {
358 if ((mask
!= (XFS_AT_CTIME
|XFS_AT_ATIME
|XFS_AT_MTIME
)) ||
359 (mp
->m_flags
& XFS_MOUNT_WSYNC
)) {
360 tp
= xfs_trans_alloc(mp
, XFS_TRANS_SETATTR_NOT_SIZE
);
362 if ((code
= xfs_trans_reserve(tp
, 0,
363 XFS_ICHANGE_LOG_RES(mp
), 0,
370 if (DM_EVENT_ENABLED (vp
->v_vfsp
, ip
, DM_EVENT_TRUNCATE
) &&
371 !(flags
& ATTR_DMI
)) {
372 int dmflags
= AT_DELAY_FLAG(flags
) | DM_SEM_FLAG_WR
;
373 code
= XFS_SEND_DATA(mp
, DM_EVENT_TRUNCATE
, vp
,
374 vap
->va_size
, 0, dmflags
, NULL
);
381 lock_flags
|= XFS_IOLOCK_EXCL
;
384 xfs_ilock(ip
, lock_flags
);
386 /* boolean: are we the file owner? */
387 file_owner
= (current_fsuid(credp
) == ip
->i_d
.di_uid
);
390 * Change various properties of a file.
391 * Only the owner or users with CAP_FOWNER
392 * capability may do these things.
395 (XFS_AT_MODE
|XFS_AT_XFLAGS
|XFS_AT_EXTSIZE
|XFS_AT_UID
|
396 XFS_AT_GID
|XFS_AT_PROJID
)) {
398 * CAP_FOWNER overrides the following restrictions:
400 * The user ID of the calling process must be equal
401 * to the file owner ID, except in cases where the
402 * CAP_FSETID capability is applicable.
404 if (!file_owner
&& !capable(CAP_FOWNER
)) {
405 code
= XFS_ERROR(EPERM
);
410 * CAP_FSETID overrides the following restrictions:
412 * The effective user ID of the calling process shall match
413 * the file owner when setting the set-user-ID and
414 * set-group-ID bits on that file.
416 * The effective group ID or one of the supplementary group
417 * IDs of the calling process shall match the group owner of
418 * the file when setting the set-group-ID bit on that file
420 if (mask
& XFS_AT_MODE
) {
423 if ((vap
->va_mode
& S_ISUID
) && !file_owner
)
425 if ((vap
->va_mode
& S_ISGID
) &&
426 !in_group_p((gid_t
)ip
->i_d
.di_gid
))
429 /* Linux allows this, Irix doesn't. */
430 if ((vap
->va_mode
& S_ISVTX
) && !VN_ISDIR(vp
))
433 if (m
&& !capable(CAP_FSETID
))
439 * Change file ownership. Must be the owner or privileged.
440 * If the system was configured with the "restricted_chown"
441 * option, the owner is not permitted to give away the file,
442 * and can change the group id only to a group of which he
443 * or she is a member.
445 if (mask
& (XFS_AT_UID
|XFS_AT_GID
|XFS_AT_PROJID
)) {
447 * These IDs could have changed since we last looked at them.
448 * But, we're assured that if the ownership did change
449 * while we didn't have the inode locked, inode's dquot(s)
450 * would have changed also.
452 iuid
= ip
->i_d
.di_uid
;
453 iprojid
= ip
->i_d
.di_projid
;
454 igid
= ip
->i_d
.di_gid
;
455 gid
= (mask
& XFS_AT_GID
) ? vap
->va_gid
: igid
;
456 uid
= (mask
& XFS_AT_UID
) ? vap
->va_uid
: iuid
;
457 projid
= (mask
& XFS_AT_PROJID
) ? (xfs_prid_t
)vap
->va_projid
:
461 * CAP_CHOWN overrides the following restrictions:
463 * If _POSIX_CHOWN_RESTRICTED is defined, this capability
464 * shall override the restriction that a process cannot
465 * change the user ID of a file it owns and the restriction
466 * that the group ID supplied to the chown() function
467 * shall be equal to either the group ID or one of the
468 * supplementary group IDs of the calling process.
470 if (restricted_chown
&&
471 (iuid
!= uid
|| (igid
!= gid
&&
472 !in_group_p((gid_t
)gid
))) &&
473 !capable(CAP_CHOWN
)) {
474 code
= XFS_ERROR(EPERM
);
478 * Do a quota reservation only if uid/projid/gid is actually
481 if ((XFS_IS_UQUOTA_ON(mp
) && iuid
!= uid
) ||
482 (XFS_IS_PQUOTA_ON(mp
) && iprojid
!= projid
) ||
483 (XFS_IS_GQUOTA_ON(mp
) && igid
!= gid
)) {
485 code
= XFS_QM_DQVOPCHOWNRESV(mp
, tp
, ip
, udqp
, gdqp
,
486 capable(CAP_FOWNER
) ?
487 XFS_QMOPT_FORCE_RES
: 0);
488 if (code
) /* out of quota */
494 * Truncate file. Must have write permission and not be a directory.
496 if (mask
& XFS_AT_SIZE
) {
497 /* Short circuit the truncate case for zero length files */
498 if ((vap
->va_size
== 0) &&
499 (ip
->i_d
.di_size
== 0) && (ip
->i_d
.di_nextents
== 0)) {
500 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
501 lock_flags
&= ~XFS_ILOCK_EXCL
;
502 if (mask
& XFS_AT_CTIME
)
503 xfs_ichgtime(ip
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
509 code
= XFS_ERROR(EISDIR
);
511 } else if (!VN_ISREG(vp
)) {
512 code
= XFS_ERROR(EINVAL
);
516 * Make sure that the dquots are attached to the inode.
518 if ((code
= XFS_QM_DQATTACH(mp
, ip
, XFS_QMOPT_ILOCKED
)))
523 * Change file access or modified times.
525 if (mask
& (XFS_AT_ATIME
|XFS_AT_MTIME
)) {
527 if ((flags
& ATTR_UTIME
) &&
528 !capable(CAP_FOWNER
)) {
529 code
= XFS_ERROR(EPERM
);
536 * Change extent size or realtime flag.
538 if (mask
& (XFS_AT_EXTSIZE
|XFS_AT_XFLAGS
)) {
540 * Can't change extent size if any extents are allocated.
542 if (ip
->i_d
.di_nextents
&& (mask
& XFS_AT_EXTSIZE
) &&
543 ((ip
->i_d
.di_extsize
<< mp
->m_sb
.sb_blocklog
) !=
545 code
= XFS_ERROR(EINVAL
); /* EFBIG? */
550 * Can't change realtime flag if any extents are allocated.
552 if ((ip
->i_d
.di_nextents
|| ip
->i_delayed_blks
) &&
553 (mask
& XFS_AT_XFLAGS
) &&
554 (ip
->i_d
.di_flags
& XFS_DIFLAG_REALTIME
) !=
555 (vap
->va_xflags
& XFS_XFLAG_REALTIME
)) {
556 code
= XFS_ERROR(EINVAL
); /* EFBIG? */
560 * Extent size must be a multiple of the appropriate block
561 * size, if set at all.
563 if ((mask
& XFS_AT_EXTSIZE
) && vap
->va_extsize
!= 0) {
566 if ((ip
->i_d
.di_flags
& XFS_DIFLAG_REALTIME
) ||
567 ((mask
& XFS_AT_XFLAGS
) &&
568 (vap
->va_xflags
& XFS_XFLAG_REALTIME
))) {
569 size
= mp
->m_sb
.sb_rextsize
<<
570 mp
->m_sb
.sb_blocklog
;
572 size
= mp
->m_sb
.sb_blocksize
;
574 if (vap
->va_extsize
% size
) {
575 code
= XFS_ERROR(EINVAL
);
580 * If realtime flag is set then must have realtime data.
582 if ((mask
& XFS_AT_XFLAGS
) &&
583 (vap
->va_xflags
& XFS_XFLAG_REALTIME
)) {
584 if ((mp
->m_sb
.sb_rblocks
== 0) ||
585 (mp
->m_sb
.sb_rextsize
== 0) ||
586 (ip
->i_d
.di_extsize
% mp
->m_sb
.sb_rextsize
)) {
587 code
= XFS_ERROR(EINVAL
);
593 * Can't modify an immutable/append-only file unless
594 * we have appropriate permission.
596 if ((mask
& XFS_AT_XFLAGS
) &&
598 (XFS_DIFLAG_IMMUTABLE
|XFS_DIFLAG_APPEND
) ||
600 (XFS_XFLAG_IMMUTABLE
| XFS_XFLAG_APPEND
))) &&
601 !capable(CAP_LINUX_IMMUTABLE
)) {
602 code
= XFS_ERROR(EPERM
);
608 * Now we can make the changes. Before we join the inode
609 * to the transaction, if XFS_AT_SIZE is set then take care of
610 * the part of the truncation that must be done without the
611 * inode lock. This needs to be done before joining the inode
612 * to the transaction, because the inode cannot be unlocked
613 * once it is a part of the transaction.
615 if (mask
& XFS_AT_SIZE
) {
617 if ((vap
->va_size
> ip
->i_d
.di_size
) &&
618 (flags
& ATTR_NOSIZETOK
) == 0) {
619 code
= xfs_igrow_start(ip
, vap
->va_size
, credp
);
621 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
622 vn_iowait(vp
); /* wait for the completion of any pending DIOs */
624 code
= xfs_itruncate_data(ip
, vap
->va_size
);
627 lock_flags
&= ~XFS_ILOCK_EXCL
;
628 ASSERT(lock_flags
== XFS_IOLOCK_EXCL
);
631 tp
= xfs_trans_alloc(mp
, XFS_TRANS_SETATTR_SIZE
);
632 if ((code
= xfs_trans_reserve(tp
, 0,
633 XFS_ITRUNCATE_LOG_RES(mp
), 0,
634 XFS_TRANS_PERM_LOG_RES
,
635 XFS_ITRUNCATE_LOG_COUNT
))) {
636 xfs_trans_cancel(tp
, 0);
638 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
641 commit_flags
= XFS_TRANS_RELEASE_LOG_RES
;
642 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
646 xfs_trans_ijoin(tp
, ip
, lock_flags
);
647 xfs_trans_ihold(tp
, ip
);
650 /* determine whether mandatory locking mode changes */
651 mandlock_before
= MANDLOCK(vp
, ip
->i_d
.di_mode
);
654 * Truncate file. Must have write permission and not be a directory.
656 if (mask
& XFS_AT_SIZE
) {
657 if (vap
->va_size
> ip
->i_d
.di_size
) {
658 xfs_igrow_finish(tp
, ip
, vap
->va_size
,
659 !(flags
& ATTR_DMI
));
660 } else if ((vap
->va_size
<= ip
->i_d
.di_size
) ||
661 ((vap
->va_size
== 0) && ip
->i_d
.di_nextents
)) {
663 * signal a sync transaction unless
664 * we're truncating an already unlinked
665 * file on a wsync filesystem
667 code
= xfs_itruncate_finish(&tp
, ip
,
668 (xfs_fsize_t
)vap
->va_size
,
670 ((ip
->i_d
.di_nlink
!= 0 ||
671 !(mp
->m_flags
& XFS_MOUNT_WSYNC
))
676 * Truncated "down", so we're removing references
677 * to old data here - if we now delay flushing for
678 * a long time, we expose ourselves unduly to the
679 * notorious NULL files problem. So, we mark this
680 * vnode and flush it when the file is closed, and
681 * do not wait the usual (long) time for writeout.
686 * Have to do this even if the file's size doesn't change.
688 timeflags
|= XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
;
692 * Change file access modes.
694 if (mask
& XFS_AT_MODE
) {
695 ip
->i_d
.di_mode
&= S_IFMT
;
696 ip
->i_d
.di_mode
|= vap
->va_mode
& ~S_IFMT
;
698 xfs_trans_log_inode (tp
, ip
, XFS_ILOG_CORE
);
699 timeflags
|= XFS_ICHGTIME_CHG
;
703 * Change file ownership. Must be the owner or privileged.
704 * If the system was configured with the "restricted_chown"
705 * option, the owner is not permitted to give away the file,
706 * and can change the group id only to a group of which he
707 * or she is a member.
709 if (mask
& (XFS_AT_UID
|XFS_AT_GID
|XFS_AT_PROJID
)) {
711 * CAP_FSETID overrides the following restrictions:
713 * The set-user-ID and set-group-ID bits of a file will be
714 * cleared upon successful return from chown()
716 if ((ip
->i_d
.di_mode
& (S_ISUID
|S_ISGID
)) &&
717 !capable(CAP_FSETID
)) {
718 ip
->i_d
.di_mode
&= ~(S_ISUID
|S_ISGID
);
722 * Change the ownerships and register quota modifications
723 * in the transaction.
726 if (XFS_IS_UQUOTA_ON(mp
)) {
727 ASSERT(mask
& XFS_AT_UID
);
729 olddquot1
= XFS_QM_DQVOPCHOWN(mp
, tp
, ip
,
730 &ip
->i_udquot
, udqp
);
732 ip
->i_d
.di_uid
= uid
;
735 if (XFS_IS_GQUOTA_ON(mp
)) {
736 ASSERT(!XFS_IS_PQUOTA_ON(mp
));
737 ASSERT(mask
& XFS_AT_GID
);
739 olddquot2
= XFS_QM_DQVOPCHOWN(mp
, tp
, ip
,
740 &ip
->i_gdquot
, gdqp
);
742 ip
->i_d
.di_gid
= gid
;
744 if (iprojid
!= projid
) {
745 if (XFS_IS_PQUOTA_ON(mp
)) {
746 ASSERT(!XFS_IS_GQUOTA_ON(mp
));
747 ASSERT(mask
& XFS_AT_PROJID
);
749 olddquot2
= XFS_QM_DQVOPCHOWN(mp
, tp
, ip
,
750 &ip
->i_gdquot
, gdqp
);
752 ip
->i_d
.di_projid
= projid
;
754 * We may have to rev the inode as well as
755 * the superblock version number since projids didn't
756 * exist before DINODE_VERSION_2 and SB_VERSION_NLINK.
758 if (ip
->i_d
.di_version
== XFS_DINODE_VERSION_1
)
759 xfs_bump_ino_vers2(tp
, ip
);
762 xfs_trans_log_inode (tp
, ip
, XFS_ILOG_CORE
);
763 timeflags
|= XFS_ICHGTIME_CHG
;
768 * Change file access or modified times.
770 if (mask
& (XFS_AT_ATIME
|XFS_AT_MTIME
)) {
771 if (mask
& XFS_AT_ATIME
) {
772 ip
->i_d
.di_atime
.t_sec
= vap
->va_atime
.tv_sec
;
773 ip
->i_d
.di_atime
.t_nsec
= vap
->va_atime
.tv_nsec
;
774 ip
->i_update_core
= 1;
775 timeflags
&= ~XFS_ICHGTIME_ACC
;
777 if (mask
& XFS_AT_MTIME
) {
778 ip
->i_d
.di_mtime
.t_sec
= vap
->va_mtime
.tv_sec
;
779 ip
->i_d
.di_mtime
.t_nsec
= vap
->va_mtime
.tv_nsec
;
780 timeflags
&= ~XFS_ICHGTIME_MOD
;
781 timeflags
|= XFS_ICHGTIME_CHG
;
783 if (tp
&& (flags
& ATTR_UTIME
))
784 xfs_trans_log_inode (tp
, ip
, XFS_ILOG_CORE
);
788 * Change XFS-added attributes.
790 if (mask
& (XFS_AT_EXTSIZE
|XFS_AT_XFLAGS
)) {
791 if (mask
& XFS_AT_EXTSIZE
) {
793 * Converting bytes to fs blocks.
795 ip
->i_d
.di_extsize
= vap
->va_extsize
>>
796 mp
->m_sb
.sb_blocklog
;
798 if (mask
& XFS_AT_XFLAGS
) {
801 /* can't set PREALLOC this way, just preserve it */
802 di_flags
= (ip
->i_d
.di_flags
& XFS_DIFLAG_PREALLOC
);
803 if (vap
->va_xflags
& XFS_XFLAG_IMMUTABLE
)
804 di_flags
|= XFS_DIFLAG_IMMUTABLE
;
805 if (vap
->va_xflags
& XFS_XFLAG_APPEND
)
806 di_flags
|= XFS_DIFLAG_APPEND
;
807 if (vap
->va_xflags
& XFS_XFLAG_SYNC
)
808 di_flags
|= XFS_DIFLAG_SYNC
;
809 if (vap
->va_xflags
& XFS_XFLAG_NOATIME
)
810 di_flags
|= XFS_DIFLAG_NOATIME
;
811 if (vap
->va_xflags
& XFS_XFLAG_NODUMP
)
812 di_flags
|= XFS_DIFLAG_NODUMP
;
813 if (vap
->va_xflags
& XFS_XFLAG_PROJINHERIT
)
814 di_flags
|= XFS_DIFLAG_PROJINHERIT
;
815 if (vap
->va_xflags
& XFS_XFLAG_NODEFRAG
)
816 di_flags
|= XFS_DIFLAG_NODEFRAG
;
817 if ((ip
->i_d
.di_mode
& S_IFMT
) == S_IFDIR
) {
818 if (vap
->va_xflags
& XFS_XFLAG_RTINHERIT
)
819 di_flags
|= XFS_DIFLAG_RTINHERIT
;
820 if (vap
->va_xflags
& XFS_XFLAG_NOSYMLINKS
)
821 di_flags
|= XFS_DIFLAG_NOSYMLINKS
;
822 if (vap
->va_xflags
& XFS_XFLAG_EXTSZINHERIT
)
823 di_flags
|= XFS_DIFLAG_EXTSZINHERIT
;
824 } else if ((ip
->i_d
.di_mode
& S_IFMT
) == S_IFREG
) {
825 if (vap
->va_xflags
& XFS_XFLAG_REALTIME
) {
826 di_flags
|= XFS_DIFLAG_REALTIME
;
827 ip
->i_iocore
.io_flags
|= XFS_IOCORE_RT
;
829 ip
->i_iocore
.io_flags
&= ~XFS_IOCORE_RT
;
831 if (vap
->va_xflags
& XFS_XFLAG_EXTSIZE
)
832 di_flags
|= XFS_DIFLAG_EXTSIZE
;
834 ip
->i_d
.di_flags
= di_flags
;
836 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
837 timeflags
|= XFS_ICHGTIME_CHG
;
841 * Change file inode change time only if XFS_AT_CTIME set
842 * AND we have been called by a DMI function.
845 if ( (flags
& ATTR_DMI
) && (mask
& XFS_AT_CTIME
) ) {
846 ip
->i_d
.di_ctime
.t_sec
= vap
->va_ctime
.tv_sec
;
847 ip
->i_d
.di_ctime
.t_nsec
= vap
->va_ctime
.tv_nsec
;
848 ip
->i_update_core
= 1;
849 timeflags
&= ~XFS_ICHGTIME_CHG
;
853 * Send out timestamp changes that need to be set to the
854 * current time. Not done when called by a DMI function.
856 if (timeflags
&& !(flags
& ATTR_DMI
))
857 xfs_ichgtime(ip
, timeflags
);
859 XFS_STATS_INC(xs_ig_attrchg
);
862 * If this is a synchronous mount, make sure that the
863 * transaction goes to disk before returning to the user.
864 * This is slightly sub-optimal in that truncates require
865 * two sync transactions instead of one for wsync filesystems.
866 * One for the truncate and one for the timestamps since we
867 * don't want to change the timestamps unless we're sure the
868 * truncate worked. Truncates are less than 1% of the laddis
869 * mix so this probably isn't worth the trouble to optimize.
873 if (mp
->m_flags
& XFS_MOUNT_WSYNC
)
874 xfs_trans_set_sync(tp
);
876 code
= xfs_trans_commit(tp
, commit_flags
);
880 * If the (regular) file's mandatory locking mode changed, then
881 * notify the vnode. We do this under the inode lock to prevent
882 * racing calls to vop_vnode_change.
884 mandlock_after
= MANDLOCK(vp
, ip
->i_d
.di_mode
);
885 if (mandlock_before
!= mandlock_after
) {
886 bhv_vop_vnode_change(vp
, VCHANGE_FLAGS_ENF_LOCKING
,
890 xfs_iunlock(ip
, lock_flags
);
893 * Release any dquot(s) the inode had kept before chown.
895 XFS_QM_DQRELE(mp
, olddquot1
);
896 XFS_QM_DQRELE(mp
, olddquot2
);
897 XFS_QM_DQRELE(mp
, udqp
);
898 XFS_QM_DQRELE(mp
, gdqp
);
904 if (DM_EVENT_ENABLED(vp
->v_vfsp
, ip
, DM_EVENT_ATTRIBUTE
) &&
905 !(flags
& ATTR_DMI
)) {
906 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_ATTRIBUTE
, vp
, DM_RIGHT_NULL
,
907 NULL
, DM_RIGHT_NULL
, NULL
, NULL
,
908 0, 0, AT_DELAY_FLAG(flags
));
913 commit_flags
|= XFS_TRANS_ABORT
;
916 XFS_QM_DQRELE(mp
, udqp
);
917 XFS_QM_DQRELE(mp
, gdqp
);
919 xfs_trans_cancel(tp
, commit_flags
);
921 if (lock_flags
!= 0) {
922 xfs_iunlock(ip
, lock_flags
);
930 * Null conversion from vnode mode bits to inode mode bits, as in efs.
941 vn_trace_entry(BHV_TO_VNODE(bdp
), __FUNCTION__
,
942 (inst_t
*)__return_address
);
944 ip
= XFS_BHVTOI(bdp
);
945 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
946 error
= xfs_iaccess(ip
, mode
, credp
);
947 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
953 * The maximum pathlen is 1024 bytes. Since the minimum file system
954 * blocksize is 512 bytes, we can get a max of 2 extents back from
957 #define SYMLINK_MAPS 2
978 xfs_bmbt_irec_t mval
[SYMLINK_MAPS
];
984 vp
= BHV_TO_VNODE(bdp
);
985 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
987 ip
= XFS_BHVTOI(bdp
);
990 if (XFS_FORCED_SHUTDOWN(mp
))
991 return XFS_ERROR(EIO
);
993 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
995 ASSERT((ip
->i_d
.di_mode
& S_IFMT
) == S_IFLNK
);
997 offset
= uiop
->uio_offset
;
998 count
= uiop
->uio_resid
;
1001 error
= XFS_ERROR(EINVAL
);
1010 * See if the symlink is stored inline.
1012 pathlen
= (int)ip
->i_d
.di_size
;
1014 if (ip
->i_df
.if_flags
& XFS_IFINLINE
) {
1015 error
= xfs_uio_read(ip
->i_df
.if_u1
.if_data
, pathlen
, uiop
);
1019 * Symlink not inline. Call bmap to get it in.
1021 nmaps
= SYMLINK_MAPS
;
1023 error
= xfs_bmapi(NULL
, ip
, 0, XFS_B_TO_FSB(mp
, pathlen
),
1024 0, NULL
, 0, mval
, &nmaps
, NULL
, NULL
);
1030 for (n
= 0; n
< nmaps
; n
++) {
1031 d
= XFS_FSB_TO_DADDR(mp
, mval
[n
].br_startblock
);
1032 byte_cnt
= XFS_FSB_TO_B(mp
, mval
[n
].br_blockcount
);
1033 bp
= xfs_buf_read(mp
->m_ddev_targp
, d
,
1034 BTOBB(byte_cnt
), 0);
1035 error
= XFS_BUF_GETERROR(bp
);
1037 xfs_ioerror_alert("xfs_readlink",
1038 ip
->i_mount
, bp
, XFS_BUF_ADDR(bp
));
1042 if (pathlen
< byte_cnt
)
1044 pathlen
-= byte_cnt
;
1046 error
= xfs_uio_read(XFS_BUF_PTR(bp
), byte_cnt
, uiop
);
1053 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
1061 * This is called to sync the inode and its data out to disk.
1062 * We need to hold the I/O lock while flushing the data, and
1063 * the inode lock while flushing the inode. The inode lock CANNOT
1064 * be held while flushing the data, so acquire after we're done
1078 int log_flushed
= 0, changed
= 1;
1080 vn_trace_entry(BHV_TO_VNODE(bdp
),
1081 __FUNCTION__
, (inst_t
*)__return_address
);
1083 ip
= XFS_BHVTOI(bdp
);
1085 ASSERT(start
>= 0 && stop
>= -1);
1087 if (XFS_FORCED_SHUTDOWN(ip
->i_mount
))
1088 return XFS_ERROR(EIO
);
1091 * We always need to make sure that the required inode state
1092 * is safe on disk. The vnode might be clean but because
1093 * of committed transactions that haven't hit the disk yet.
1094 * Likewise, there could be unflushed non-transactional
1095 * changes to the inode core that have to go to disk.
1097 * The following code depends on one assumption: that
1098 * any transaction that changes an inode logs the core
1099 * because it has to change some field in the inode core
1100 * (typically nextents or nblocks). That assumption
1101 * implies that any transactions against an inode will
1102 * catch any non-transactional updates. If inode-altering
1103 * transactions exist that violate this assumption, the
1104 * code breaks. Right now, it figures that if the involved
1105 * update_* field is clear and the inode is unpinned, the
1106 * inode is clean. Either it's been flushed or it's been
1107 * committed and the commit has hit the disk unpinning the inode.
1108 * (Note that xfs_inode_item_format() called at commit clears
1109 * the update_* fields.)
1111 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
1113 /* If we are flushing data then we care about update_size
1114 * being set, otherwise we care about update_core
1116 if ((flag
& FSYNC_DATA
) ?
1117 (ip
->i_update_size
== 0) :
1118 (ip
->i_update_core
== 0)) {
1120 * Timestamps/size haven't changed since last inode
1121 * flush or inode transaction commit. That means
1122 * either nothing got written or a transaction
1123 * committed which caught the updates. If the
1124 * latter happened and the transaction hasn't
1125 * hit the disk yet, the inode will be still
1126 * be pinned. If it is, force the log.
1129 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
1131 if (xfs_ipincount(ip
)) {
1132 _xfs_log_force(ip
->i_mount
, (xfs_lsn_t
)0,
1134 ((flag
& FSYNC_WAIT
)
1135 ? XFS_LOG_SYNC
: 0),
1139 * If the inode is not pinned and nothing
1140 * has changed we don't need to flush the
1148 * Kick off a transaction to log the inode
1149 * core to get the updates. Make it
1150 * sync if FSYNC_WAIT is passed in (which
1151 * is done by everybody but specfs). The
1152 * sync transaction will also force the log.
1154 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
1155 tp
= xfs_trans_alloc(ip
->i_mount
, XFS_TRANS_FSYNC_TS
);
1156 if ((error
= xfs_trans_reserve(tp
, 0,
1157 XFS_FSYNC_TS_LOG_RES(ip
->i_mount
),
1159 xfs_trans_cancel(tp
, 0);
1162 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
1165 * Note - it's possible that we might have pushed
1166 * ourselves out of the way during trans_reserve
1167 * which would flush the inode. But there's no
1168 * guarantee that the inode buffer has actually
1169 * gone out yet (it's delwri). Plus the buffer
1170 * could be pinned anyway if it's part of an
1171 * inode in another recent transaction. So we
1172 * play it safe and fire off the transaction anyway.
1174 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
);
1175 xfs_trans_ihold(tp
, ip
);
1176 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
1177 if (flag
& FSYNC_WAIT
)
1178 xfs_trans_set_sync(tp
);
1179 error
= _xfs_trans_commit(tp
, 0, &log_flushed
);
1181 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
1184 if ((ip
->i_mount
->m_flags
& XFS_MOUNT_BARRIER
) && changed
) {
1186 * If the log write didn't issue an ordered tag we need
1187 * to flush the disk cache for the data device now.
1190 xfs_blkdev_issue_flush(ip
->i_mount
->m_ddev_targp
);
1193 * If this inode is on the RT dev we need to flush that
1196 if (ip
->i_d
.di_flags
& XFS_DIFLAG_REALTIME
)
1197 xfs_blkdev_issue_flush(ip
->i_mount
->m_rtdev_targp
);
1204 * This is called by xfs_inactive to free any blocks beyond eof,
1205 * when the link count isn't zero.
1208 xfs_inactive_free_eofblocks(
1214 xfs_fileoff_t end_fsb
;
1215 xfs_fileoff_t last_fsb
;
1216 xfs_filblks_t map_len
;
1218 xfs_bmbt_irec_t imap
;
1221 * Figure out if there are any blocks beyond the end
1222 * of the file. If not, then there is nothing to do.
1224 end_fsb
= XFS_B_TO_FSB(mp
, ((xfs_ufsize_t
)ip
->i_d
.di_size
));
1225 last_fsb
= XFS_B_TO_FSB(mp
, (xfs_ufsize_t
)XFS_MAXIOFFSET(mp
));
1226 map_len
= last_fsb
- end_fsb
;
1231 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
1232 error
= XFS_BMAPI(mp
, NULL
, &ip
->i_iocore
, end_fsb
, map_len
, 0,
1233 NULL
, 0, &imap
, &nimaps
, NULL
, NULL
);
1234 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
1236 if (!error
&& (nimaps
!= 0) &&
1237 (imap
.br_startblock
!= HOLESTARTBLOCK
||
1238 ip
->i_delayed_blks
)) {
1240 * Attach the dquots to the inode up front.
1242 if ((error
= XFS_QM_DQATTACH(mp
, ip
, 0)))
1246 * There are blocks after the end of file.
1247 * Free them up now by truncating the file to
1250 tp
= xfs_trans_alloc(mp
, XFS_TRANS_INACTIVE
);
1253 * Do the xfs_itruncate_start() call before
1254 * reserving any log space because
1255 * itruncate_start will call into the buffer
1256 * cache and we can't
1257 * do that within a transaction.
1259 xfs_ilock(ip
, XFS_IOLOCK_EXCL
);
1260 xfs_itruncate_start(ip
, XFS_ITRUNC_DEFINITE
,
1263 error
= xfs_trans_reserve(tp
, 0,
1264 XFS_ITRUNCATE_LOG_RES(mp
),
1265 0, XFS_TRANS_PERM_LOG_RES
,
1266 XFS_ITRUNCATE_LOG_COUNT
);
1268 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1269 xfs_trans_cancel(tp
, 0);
1270 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
1274 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
1275 xfs_trans_ijoin(tp
, ip
,
1278 xfs_trans_ihold(tp
, ip
);
1280 error
= xfs_itruncate_finish(&tp
, ip
,
1285 * If we get an error at this point we
1286 * simply don't bother truncating the file.
1289 xfs_trans_cancel(tp
,
1290 (XFS_TRANS_RELEASE_LOG_RES
|
1293 error
= xfs_trans_commit(tp
,
1294 XFS_TRANS_RELEASE_LOG_RES
);
1296 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1302 * Free a symlink that has blocks associated with it.
1305 xfs_inactive_symlink_rmt(
1313 xfs_fsblock_t first_block
;
1314 xfs_bmap_free_t free_list
;
1317 xfs_bmbt_irec_t mval
[SYMLINK_MAPS
];
1325 ASSERT(ip
->i_d
.di_size
> XFS_IFORK_DSIZE(ip
));
1327 * We're freeing a symlink that has some
1328 * blocks allocated to it. Free the
1329 * blocks here. We know that we've got
1330 * either 1 or 2 extents and that we can
1331 * free them all in one bunmapi call.
1333 ASSERT(ip
->i_d
.di_nextents
> 0 && ip
->i_d
.di_nextents
<= 2);
1334 if ((error
= xfs_trans_reserve(tp
, 0, XFS_ITRUNCATE_LOG_RES(mp
), 0,
1335 XFS_TRANS_PERM_LOG_RES
, XFS_ITRUNCATE_LOG_COUNT
))) {
1336 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1337 xfs_trans_cancel(tp
, 0);
1342 * Lock the inode, fix the size, and join it to the transaction.
1343 * Hold it so in the normal path, we still have it locked for
1344 * the second transaction. In the error paths we need it
1345 * held so the cancel won't rele it, see below.
1347 xfs_ilock(ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1348 size
= (int)ip
->i_d
.di_size
;
1349 ip
->i_d
.di_size
= 0;
1350 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
1351 xfs_trans_ihold(tp
, ip
);
1352 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
1354 * Find the block(s) so we can inval and unmap them.
1357 XFS_BMAP_INIT(&free_list
, &first_block
);
1358 nmaps
= ARRAY_SIZE(mval
);
1359 if ((error
= xfs_bmapi(tp
, ip
, 0, XFS_B_TO_FSB(mp
, size
),
1360 XFS_BMAPI_METADATA
, &first_block
, 0, mval
, &nmaps
,
1364 * Invalidate the block(s).
1366 for (i
= 0; i
< nmaps
; i
++) {
1367 bp
= xfs_trans_get_buf(tp
, mp
->m_ddev_targp
,
1368 XFS_FSB_TO_DADDR(mp
, mval
[i
].br_startblock
),
1369 XFS_FSB_TO_BB(mp
, mval
[i
].br_blockcount
), 0);
1370 xfs_trans_binval(tp
, bp
);
1373 * Unmap the dead block(s) to the free_list.
1375 if ((error
= xfs_bunmapi(tp
, ip
, 0, size
, XFS_BMAPI_METADATA
, nmaps
,
1376 &first_block
, &free_list
, NULL
, &done
)))
1380 * Commit the first transaction. This logs the EFI and the inode.
1382 if ((error
= xfs_bmap_finish(&tp
, &free_list
, &committed
)))
1385 * The transaction must have been committed, since there were
1386 * actually extents freed by xfs_bunmapi. See xfs_bmap_finish.
1387 * The new tp has the extent freeing and EFDs.
1391 * The first xact was committed, so add the inode to the new one.
1392 * Mark it dirty so it will be logged and moved forward in the log as
1393 * part of every commit.
1395 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
1396 xfs_trans_ihold(tp
, ip
);
1397 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
1399 * Get a new, empty transaction to return to our caller.
1401 ntp
= xfs_trans_dup(tp
);
1403 * Commit the transaction containing extent freeing and EFDs.
1404 * If we get an error on the commit here or on the reserve below,
1405 * we need to unlock the inode since the new transaction doesn't
1406 * have the inode attached.
1408 error
= xfs_trans_commit(tp
, 0);
1411 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1415 * Remove the memory for extent descriptions (just bookkeeping).
1417 if (ip
->i_df
.if_bytes
)
1418 xfs_idata_realloc(ip
, -ip
->i_df
.if_bytes
, XFS_DATA_FORK
);
1419 ASSERT(ip
->i_df
.if_bytes
== 0);
1421 * Put an itruncate log reservation in the new transaction
1424 if ((error
= xfs_trans_reserve(tp
, 0, XFS_ITRUNCATE_LOG_RES(mp
), 0,
1425 XFS_TRANS_PERM_LOG_RES
, XFS_ITRUNCATE_LOG_COUNT
))) {
1426 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1430 * Return with the inode locked but not joined to the transaction.
1436 xfs_bmap_cancel(&free_list
);
1439 * Have to come here with the inode locked and either
1440 * (held and in the transaction) or (not in the transaction).
1441 * If the inode isn't held then cancel would iput it, but
1442 * that's wrong since this is inactive and the vnode ref
1443 * count is 0 already.
1444 * Cancel won't do anything to the inode if held, but it still
1445 * needs to be locked until the cancel is done, if it was
1446 * joined to the transaction.
1448 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
| XFS_TRANS_ABORT
);
1449 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1456 xfs_inactive_symlink_local(
1462 ASSERT(ip
->i_d
.di_size
<= XFS_IFORK_DSIZE(ip
));
1464 * We're freeing a symlink which fit into
1465 * the inode. Just free the memory used
1466 * to hold the old symlink.
1468 error
= xfs_trans_reserve(*tpp
, 0,
1469 XFS_ITRUNCATE_LOG_RES(ip
->i_mount
),
1470 0, XFS_TRANS_PERM_LOG_RES
,
1471 XFS_ITRUNCATE_LOG_COUNT
);
1474 xfs_trans_cancel(*tpp
, 0);
1478 xfs_ilock(ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
1481 * Zero length symlinks _can_ exist.
1483 if (ip
->i_df
.if_bytes
> 0) {
1484 xfs_idata_realloc(ip
,
1485 -(ip
->i_df
.if_bytes
),
1487 ASSERT(ip
->i_df
.if_bytes
== 0);
1501 ASSERT(ismrlocked(&ip
->i_iolock
, MR_UPDATE
));
1504 ASSERT(ip
->i_d
.di_forkoff
!= 0);
1505 xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
);
1506 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
1508 error
= xfs_attr_inactive(ip
);
1511 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
1512 return error
; /* goto out */
1515 tp
= xfs_trans_alloc(mp
, XFS_TRANS_INACTIVE
);
1516 error
= xfs_trans_reserve(tp
, 0,
1517 XFS_IFREE_LOG_RES(mp
),
1518 0, XFS_TRANS_PERM_LOG_RES
,
1519 XFS_INACTIVE_LOG_COUNT
);
1521 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1522 xfs_trans_cancel(tp
, 0);
1524 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
1528 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
1529 xfs_trans_ijoin(tp
, ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1530 xfs_trans_ihold(tp
, ip
);
1531 xfs_idestroy_fork(ip
, XFS_ATTR_FORK
);
1533 ASSERT(ip
->i_d
.di_anextents
== 0);
1548 vp
= BHV_TO_VNODE(bdp
);
1549 ip
= XFS_BHVTOI(bdp
);
1552 if (!VN_ISREG(vp
) || (ip
->i_d
.di_mode
== 0))
1555 /* If this is a read-only mount, don't do this (would generate I/O) */
1556 if (vp
->v_vfsp
->vfs_flag
& VFS_RDONLY
)
1559 #ifdef HAVE_REFCACHE
1560 /* If we are in the NFS reference cache then don't do this now */
1565 if (ip
->i_d
.di_nlink
!= 0) {
1566 if ((((ip
->i_d
.di_mode
& S_IFMT
) == S_IFREG
) &&
1567 ((ip
->i_d
.di_size
> 0) || (VN_CACHED(vp
) > 0 ||
1568 ip
->i_delayed_blks
> 0)) &&
1569 (ip
->i_df
.if_flags
& XFS_IFEXTENTS
)) &&
1570 (!(ip
->i_d
.di_flags
&
1571 (XFS_DIFLAG_PREALLOC
| XFS_DIFLAG_APPEND
)))) {
1572 if ((error
= xfs_inactive_free_eofblocks(mp
, ip
)))
1574 /* Update linux inode block count after free above */
1575 vn_to_inode(vp
)->i_blocks
= XFS_FSB_TO_BB(mp
,
1576 ip
->i_d
.di_nblocks
+ ip
->i_delayed_blks
);
1586 * This is called when the vnode reference count for the vnode
1587 * goes to zero. If the file has been unlinked, then it must
1588 * now be truncated. Also, we clear all of the read-ahead state
1589 * kept for the inode here since the file is now closed.
1598 xfs_bmap_free_t free_list
;
1599 xfs_fsblock_t first_block
;
1606 vp
= BHV_TO_VNODE(bdp
);
1607 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
1609 ip
= XFS_BHVTOI(bdp
);
1612 * If the inode is already free, then there can be nothing
1615 if (ip
->i_d
.di_mode
== 0 || VN_BAD(vp
)) {
1616 ASSERT(ip
->i_df
.if_real_bytes
== 0);
1617 ASSERT(ip
->i_df
.if_broot_bytes
== 0);
1618 return VN_INACTIVE_CACHE
;
1622 * Only do a truncate if it's a regular file with
1623 * some actual space in it. It's OK to look at the
1624 * inode's fields without the lock because we're the
1625 * only one with a reference to the inode.
1627 truncate
= ((ip
->i_d
.di_nlink
== 0) &&
1628 ((ip
->i_d
.di_size
!= 0) || (ip
->i_d
.di_nextents
> 0) ||
1629 (ip
->i_delayed_blks
> 0)) &&
1630 ((ip
->i_d
.di_mode
& S_IFMT
) == S_IFREG
));
1634 if (ip
->i_d
.di_nlink
== 0 &&
1635 DM_EVENT_ENABLED(vp
->v_vfsp
, ip
, DM_EVENT_DESTROY
)) {
1636 (void) XFS_SEND_DESTROY(mp
, vp
, DM_RIGHT_NULL
);
1641 /* If this is a read-only mount, don't do this (would generate I/O) */
1642 if (vp
->v_vfsp
->vfs_flag
& VFS_RDONLY
)
1645 if (ip
->i_d
.di_nlink
!= 0) {
1646 if ((((ip
->i_d
.di_mode
& S_IFMT
) == S_IFREG
) &&
1647 ((ip
->i_d
.di_size
> 0) || (VN_CACHED(vp
) > 0 ||
1648 ip
->i_delayed_blks
> 0)) &&
1649 (ip
->i_df
.if_flags
& XFS_IFEXTENTS
) &&
1650 (!(ip
->i_d
.di_flags
&
1651 (XFS_DIFLAG_PREALLOC
| XFS_DIFLAG_APPEND
)) ||
1652 (ip
->i_delayed_blks
!= 0)))) {
1653 if ((error
= xfs_inactive_free_eofblocks(mp
, ip
)))
1654 return VN_INACTIVE_CACHE
;
1655 /* Update linux inode block count after free above */
1656 vn_to_inode(vp
)->i_blocks
= XFS_FSB_TO_BB(mp
,
1657 ip
->i_d
.di_nblocks
+ ip
->i_delayed_blks
);
1662 ASSERT(ip
->i_d
.di_nlink
== 0);
1664 if ((error
= XFS_QM_DQATTACH(mp
, ip
, 0)))
1665 return VN_INACTIVE_CACHE
;
1667 tp
= xfs_trans_alloc(mp
, XFS_TRANS_INACTIVE
);
1670 * Do the xfs_itruncate_start() call before
1671 * reserving any log space because itruncate_start
1672 * will call into the buffer cache and we can't
1673 * do that within a transaction.
1675 xfs_ilock(ip
, XFS_IOLOCK_EXCL
);
1677 xfs_itruncate_start(ip
, XFS_ITRUNC_DEFINITE
, 0);
1679 error
= xfs_trans_reserve(tp
, 0,
1680 XFS_ITRUNCATE_LOG_RES(mp
),
1681 0, XFS_TRANS_PERM_LOG_RES
,
1682 XFS_ITRUNCATE_LOG_COUNT
);
1684 /* Don't call itruncate_cleanup */
1685 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1686 xfs_trans_cancel(tp
, 0);
1687 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
1688 return VN_INACTIVE_CACHE
;
1691 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
1692 xfs_trans_ijoin(tp
, ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1693 xfs_trans_ihold(tp
, ip
);
1696 * normally, we have to run xfs_itruncate_finish sync.
1697 * But if filesystem is wsync and we're in the inactive
1698 * path, then we know that nlink == 0, and that the
1699 * xaction that made nlink == 0 is permanently committed
1700 * since xfs_remove runs as a synchronous transaction.
1702 error
= xfs_itruncate_finish(&tp
, ip
, 0, XFS_DATA_FORK
,
1703 (!(mp
->m_flags
& XFS_MOUNT_WSYNC
) ? 1 : 0));
1706 xfs_trans_cancel(tp
,
1707 XFS_TRANS_RELEASE_LOG_RES
| XFS_TRANS_ABORT
);
1708 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1709 return VN_INACTIVE_CACHE
;
1711 } else if ((ip
->i_d
.di_mode
& S_IFMT
) == S_IFLNK
) {
1714 * If we get an error while cleaning up a
1715 * symlink we bail out.
1717 error
= (ip
->i_d
.di_size
> XFS_IFORK_DSIZE(ip
)) ?
1718 xfs_inactive_symlink_rmt(ip
, &tp
) :
1719 xfs_inactive_symlink_local(ip
, &tp
);
1723 return VN_INACTIVE_CACHE
;
1726 xfs_trans_ijoin(tp
, ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1727 xfs_trans_ihold(tp
, ip
);
1729 error
= xfs_trans_reserve(tp
, 0,
1730 XFS_IFREE_LOG_RES(mp
),
1731 0, XFS_TRANS_PERM_LOG_RES
,
1732 XFS_INACTIVE_LOG_COUNT
);
1734 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1735 xfs_trans_cancel(tp
, 0);
1736 return VN_INACTIVE_CACHE
;
1739 xfs_ilock(ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
1740 xfs_trans_ijoin(tp
, ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1741 xfs_trans_ihold(tp
, ip
);
1745 * If there are attributes associated with the file
1746 * then blow them away now. The code calls a routine
1747 * that recursively deconstructs the attribute fork.
1748 * We need to just commit the current transaction
1749 * because we can't use it for xfs_attr_inactive().
1751 if (ip
->i_d
.di_anextents
> 0) {
1752 error
= xfs_inactive_attrs(ip
, &tp
);
1754 * If we got an error, the transaction is already
1755 * cancelled, and the inode is unlocked. Just get out.
1758 return VN_INACTIVE_CACHE
;
1759 } else if (ip
->i_afp
) {
1760 xfs_idestroy_fork(ip
, XFS_ATTR_FORK
);
1766 XFS_BMAP_INIT(&free_list
, &first_block
);
1767 error
= xfs_ifree(tp
, ip
, &free_list
);
1770 * If we fail to free the inode, shut down. The cancel
1771 * might do that, we need to make sure. Otherwise the
1772 * inode might be lost for a long time or forever.
1774 if (!XFS_FORCED_SHUTDOWN(mp
)) {
1776 "xfs_inactive: xfs_ifree() returned an error = %d on %s",
1777 error
, mp
->m_fsname
);
1778 xfs_force_shutdown(mp
, SHUTDOWN_META_IO_ERROR
);
1780 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
|XFS_TRANS_ABORT
);
1783 * Credit the quota account(s). The inode is gone.
1785 XFS_TRANS_MOD_DQUOT_BYINO(mp
, tp
, ip
, XFS_TRANS_DQ_ICOUNT
, -1);
1788 * Just ignore errors at this point. There is
1789 * nothing we can do except to try to keep going.
1791 (void) xfs_bmap_finish(&tp
, &free_list
, &committed
);
1792 (void) xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
);
1795 * Release the dquots held by inode, if any.
1797 XFS_QM_DQDETACH(mp
, ip
);
1799 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1802 return VN_INACTIVE_CACHE
;
1811 bhv_desc_t
*dir_bdp
,
1812 bhv_vname_t
*dentry
,
1818 xfs_inode_t
*dp
, *ip
;
1822 bhv_vnode_t
*dir_vp
;
1824 dir_vp
= BHV_TO_VNODE(dir_bdp
);
1825 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
1827 dp
= XFS_BHVTOI(dir_bdp
);
1829 if (XFS_FORCED_SHUTDOWN(dp
->i_mount
))
1830 return XFS_ERROR(EIO
);
1832 lock_mode
= xfs_ilock_map_shared(dp
);
1833 error
= xfs_dir_lookup_int(dir_bdp
, lock_mode
, dentry
, &e_inum
, &ip
);
1835 *vpp
= XFS_ITOV(ip
);
1838 xfs_iunlock_map_shared(dp
, lock_mode
);
1844 * xfs_create (create a new file).
1848 bhv_desc_t
*dir_bdp
,
1849 bhv_vname_t
*dentry
,
1854 char *name
= VNAME(dentry
);
1855 bhv_vnode_t
*dir_vp
;
1856 xfs_inode_t
*dp
, *ip
;
1857 bhv_vnode_t
*vp
= NULL
;
1862 xfs_bmap_free_t free_list
;
1863 xfs_fsblock_t first_block
;
1864 boolean_t dp_joined_to_trans
;
1865 int dm_event_sent
= 0;
1869 struct xfs_dquot
*udqp
, *gdqp
;
1875 dir_vp
= BHV_TO_VNODE(dir_bdp
);
1876 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
1878 dp
= XFS_BHVTOI(dir_bdp
);
1881 dm_di_mode
= vap
->va_mode
;
1882 namelen
= VNAMELEN(dentry
);
1884 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_CREATE
)) {
1885 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_CREATE
,
1886 dir_vp
, DM_RIGHT_NULL
, NULL
,
1887 DM_RIGHT_NULL
, name
, NULL
,
1895 if (XFS_FORCED_SHUTDOWN(mp
))
1896 return XFS_ERROR(EIO
);
1898 /* Return through std_return after this point. */
1901 if (dp
->i_d
.di_flags
& XFS_DIFLAG_PROJINHERIT
)
1902 prid
= dp
->i_d
.di_projid
;
1903 else if (vap
->va_mask
& XFS_AT_PROJID
)
1904 prid
= (xfs_prid_t
)vap
->va_projid
;
1906 prid
= (xfs_prid_t
)dfltprid
;
1909 * Make sure that we have allocated dquot(s) on disk.
1911 error
= XFS_QM_DQVOPALLOC(mp
, dp
,
1912 current_fsuid(credp
), current_fsgid(credp
), prid
,
1913 XFS_QMOPT_QUOTALL
|XFS_QMOPT_INHERIT
, &udqp
, &gdqp
);
1918 dp_joined_to_trans
= B_FALSE
;
1920 tp
= xfs_trans_alloc(mp
, XFS_TRANS_CREATE
);
1921 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
1922 resblks
= XFS_CREATE_SPACE_RES(mp
, namelen
);
1924 * Initially assume that the file does not exist and
1925 * reserve the resources for that case. If that is not
1926 * the case we'll drop the one we have and get a more
1927 * appropriate transaction later.
1929 error
= xfs_trans_reserve(tp
, resblks
, XFS_CREATE_LOG_RES(mp
), 0,
1930 XFS_TRANS_PERM_LOG_RES
, XFS_CREATE_LOG_COUNT
);
1931 if (error
== ENOSPC
) {
1933 error
= xfs_trans_reserve(tp
, 0, XFS_CREATE_LOG_RES(mp
), 0,
1934 XFS_TRANS_PERM_LOG_RES
, XFS_CREATE_LOG_COUNT
);
1942 xfs_ilock(dp
, XFS_ILOCK_EXCL
);
1944 XFS_BMAP_INIT(&free_list
, &first_block
);
1949 * Reserve disk quota and the inode.
1951 error
= XFS_TRANS_RESERVE_QUOTA(mp
, tp
, udqp
, gdqp
, resblks
, 1, 0);
1955 if (resblks
== 0 && (error
= xfs_dir_canenter(tp
, dp
, name
, namelen
)))
1957 rdev
= (vap
->va_mask
& XFS_AT_RDEV
) ? vap
->va_rdev
: 0;
1958 error
= xfs_dir_ialloc(&tp
, dp
, vap
->va_mode
, 1,
1959 rdev
, credp
, prid
, resblks
> 0,
1962 if (error
== ENOSPC
)
1969 * At this point, we've gotten a newly allocated inode.
1970 * It is locked (and joined to the transaction).
1973 ASSERT(ismrlocked (&ip
->i_lock
, MR_UPDATE
));
1976 * Now we join the directory inode to the transaction.
1977 * We do not do it earlier because xfs_dir_ialloc
1978 * might commit the previous transaction (and release
1983 xfs_trans_ijoin(tp
, dp
, XFS_ILOCK_EXCL
);
1984 dp_joined_to_trans
= B_TRUE
;
1986 error
= xfs_dir_createname(tp
, dp
, name
, namelen
, ip
->i_ino
,
1987 &first_block
, &free_list
, resblks
?
1988 resblks
- XFS_IALLOC_SPACE_RES(mp
) : 0);
1990 ASSERT(error
!= ENOSPC
);
1993 xfs_ichgtime(dp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
1994 xfs_trans_log_inode(tp
, dp
, XFS_ILOG_CORE
);
1997 * If this is a synchronous mount, make sure that the
1998 * create transaction goes to disk before returning to
2001 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
2002 xfs_trans_set_sync(tp
);
2008 * Attach the dquot(s) to the inodes and modify them incore.
2009 * These ids of the inode couldn't have changed since the new
2010 * inode has been locked ever since it was created.
2012 XFS_QM_DQVOPCREATE(mp
, tp
, ip
, udqp
, gdqp
);
2015 * xfs_trans_commit normally decrements the vnode ref count
2016 * when it unlocks the inode. Since we want to return the
2017 * vnode to the caller, we bump the vnode ref count now.
2022 error
= xfs_bmap_finish(&tp
, &free_list
, &committed
);
2024 xfs_bmap_cancel(&free_list
);
2028 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
);
2035 XFS_QM_DQRELE(mp
, udqp
);
2036 XFS_QM_DQRELE(mp
, gdqp
);
2039 * Propagate the fact that the vnode changed after the
2040 * xfs_inode locks have been released.
2042 bhv_vop_vnode_change(vp
, VCHANGE_FLAGS_TRUNCATED
, 3);
2046 /* Fallthrough to std_return with error = 0 */
2049 if ( (*vpp
|| (error
!= 0 && dm_event_sent
!= 0)) &&
2050 DM_EVENT_ENABLED(dir_vp
->v_vfsp
, XFS_BHVTOI(dir_bdp
),
2051 DM_EVENT_POSTCREATE
)) {
2052 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTCREATE
,
2053 dir_vp
, DM_RIGHT_NULL
,
2055 DM_RIGHT_NULL
, name
, NULL
,
2056 dm_di_mode
, error
, 0);
2061 cancel_flags
|= XFS_TRANS_ABORT
;
2066 xfs_trans_cancel(tp
, cancel_flags
);
2068 if (!dp_joined_to_trans
&& (dp
!= NULL
))
2069 xfs_iunlock(dp
, XFS_ILOCK_EXCL
);
2070 XFS_QM_DQRELE(mp
, udqp
);
2071 XFS_QM_DQRELE(mp
, gdqp
);
2077 * Wait until after the current transaction is aborted to
2078 * release the inode. This prevents recursive transactions
2079 * and deadlocks from xfs_inactive.
2081 cancel_flags
|= XFS_TRANS_ABORT
;
2082 xfs_trans_cancel(tp
, cancel_flags
);
2085 XFS_QM_DQRELE(mp
, udqp
);
2086 XFS_QM_DQRELE(mp
, gdqp
);
2093 * Some counters to see if (and how often) we are hitting some deadlock
2094 * prevention code paths.
2098 int xfs_rm_lock_delays
;
2099 int xfs_rm_attempts
;
2103 * The following routine will lock the inodes associated with the
2104 * directory and the named entry in the directory. The locks are
2105 * acquired in increasing inode number.
2107 * If the entry is "..", then only the directory is locked. The
2108 * vnode ref count will still include that from the .. entry in
2111 * There is a deadlock we need to worry about. If the locked directory is
2112 * in the AIL, it might be blocking up the log. The next inode we lock
2113 * could be already locked by another thread waiting for log space (e.g
2114 * a permanent log reservation with a long running transaction (see
2115 * xfs_itruncate_finish)). To solve this, we must check if the directory
2116 * is in the ail and use lock_nowait. If we can't lock, we need to
2117 * drop the inode lock on the directory and try again. xfs_iunlock will
2118 * potentially push the tail if we were holding up the log.
2121 xfs_lock_dir_and_entry(
2123 bhv_vname_t
*dentry
,
2124 xfs_inode_t
*ip
) /* inode of entry 'name' */
2128 xfs_inode_t
*ips
[2];
2137 xfs_ilock(dp
, XFS_ILOCK_EXCL
);
2144 * We want to lock in increasing inum. Since we've already
2145 * acquired the lock on the directory, we may need to release
2146 * if if the inum of the entry turns out to be less.
2148 if (e_inum
> dp
->i_ino
) {
2150 * We are already in the right order, so just
2151 * lock on the inode of the entry.
2152 * We need to use nowait if dp is in the AIL.
2155 lp
= (xfs_log_item_t
*)dp
->i_itemp
;
2156 if (lp
&& (lp
->li_flags
& XFS_LI_IN_AIL
)) {
2157 if (!xfs_ilock_nowait(ip
, XFS_ILOCK_EXCL
)) {
2164 * Unlock dp and try again.
2165 * xfs_iunlock will try to push the tail
2166 * if the inode is in the AIL.
2169 xfs_iunlock(dp
, XFS_ILOCK_EXCL
);
2171 if ((attempts
% 5) == 0) {
2172 delay(1); /* Don't just spin the CPU */
2174 xfs_rm_lock_delays
++;
2180 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
2182 } else if (e_inum
< dp
->i_ino
) {
2183 xfs_iunlock(dp
, XFS_ILOCK_EXCL
);
2187 xfs_lock_inodes(ips
, 2, 0, XFS_ILOCK_EXCL
);
2189 /* else e_inum == dp->i_ino */
2190 /* This can happen if we're asked to lock /x/..
2191 * the entry is "..", which is also the parent directory.
2199 int xfs_small_retries
;
2200 int xfs_middle_retries
;
2201 int xfs_lots_retries
;
2202 int xfs_lock_delays
;
2206 * The following routine will lock n inodes in exclusive mode.
2207 * We assume the caller calls us with the inodes in i_ino order.
2209 * We need to detect deadlock where an inode that we lock
2210 * is in the AIL and we start waiting for another inode that is locked
2211 * by a thread in a long running transaction (such as truncate). This can
2212 * result in deadlock since the long running trans might need to wait
2213 * for the inode we just locked in order to push the tail and free space
2223 int attempts
= 0, i
, j
, try_lock
;
2226 ASSERT(ips
&& (inodes
>= 2)); /* we need at least two */
2237 for (; i
< inodes
; i
++) {
2240 if (i
&& (ips
[i
] == ips
[i
-1])) /* Already locked */
2244 * If try_lock is not set yet, make sure all locked inodes
2245 * are not in the AIL.
2246 * If any are, set try_lock to be used later.
2250 for (j
= (i
- 1); j
>= 0 && !try_lock
; j
--) {
2251 lp
= (xfs_log_item_t
*)ips
[j
]->i_itemp
;
2252 if (lp
&& (lp
->li_flags
& XFS_LI_IN_AIL
)) {
2259 * If any of the previous locks we have locked is in the AIL,
2260 * we must TRY to get the second and subsequent locks. If
2261 * we can't get any, we must release all we have
2266 /* try_lock must be 0 if i is 0. */
2268 * try_lock means we have an inode locked
2269 * that is in the AIL.
2272 if (!xfs_ilock_nowait(ips
[i
], lock_mode
)) {
2276 * Unlock all previous guys and try again.
2277 * xfs_iunlock will try to push the tail
2278 * if the inode is in the AIL.
2281 for(j
= i
- 1; j
>= 0; j
--) {
2284 * Check to see if we've already
2285 * unlocked this one.
2286 * Not the first one going back,
2287 * and the inode ptr is the same.
2289 if ((j
!= (i
- 1)) && ips
[j
] ==
2293 xfs_iunlock(ips
[j
], lock_mode
);
2296 if ((attempts
% 5) == 0) {
2297 delay(1); /* Don't just spin the CPU */
2307 xfs_ilock(ips
[i
], lock_mode
);
2313 if (attempts
< 5) xfs_small_retries
++;
2314 else if (attempts
< 100) xfs_middle_retries
++;
2315 else xfs_lots_retries
++;
2323 #define REMOVE_DEBUG_TRACE(x) {remove_which_error_return = (x);}
2324 int remove_which_error_return
= 0;
2326 #define REMOVE_DEBUG_TRACE(x)
2327 #endif /* ! DEBUG */
2336 bhv_desc_t
*dir_bdp
,
2337 bhv_vname_t
*dentry
,
2340 bhv_vnode_t
*dir_vp
;
2341 char *name
= VNAME(dentry
);
2342 xfs_inode_t
*dp
, *ip
;
2343 xfs_trans_t
*tp
= NULL
;
2346 xfs_bmap_free_t free_list
;
2347 xfs_fsblock_t first_block
;
2355 dir_vp
= BHV_TO_VNODE(dir_bdp
);
2356 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
2358 dp
= XFS_BHVTOI(dir_bdp
);
2361 if (XFS_FORCED_SHUTDOWN(mp
))
2362 return XFS_ERROR(EIO
);
2364 namelen
= VNAMELEN(dentry
);
2366 if (!xfs_get_dir_entry(dentry
, &ip
)) {
2367 dm_di_mode
= ip
->i_d
.di_mode
;
2371 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_REMOVE
)) {
2372 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_REMOVE
, dir_vp
,
2373 DM_RIGHT_NULL
, NULL
, DM_RIGHT_NULL
,
2374 name
, NULL
, dm_di_mode
, 0, 0);
2379 /* From this point on, return through std_return */
2383 * We need to get a reference to ip before we get our log
2384 * reservation. The reason for this is that we cannot call
2385 * xfs_iget for an inode for which we do not have a reference
2386 * once we've acquired a log reservation. This is because the
2387 * inode we are trying to get might be in xfs_inactive going
2388 * for a log reservation. Since we'll have to wait for the
2389 * inactive code to complete before returning from xfs_iget,
2390 * we need to make sure that we don't have log space reserved
2391 * when we call xfs_iget. Instead we get an unlocked reference
2392 * to the inode before getting our log reservation.
2394 error
= xfs_get_dir_entry(dentry
, &ip
);
2396 REMOVE_DEBUG_TRACE(__LINE__
);
2400 dm_di_mode
= ip
->i_d
.di_mode
;
2402 vn_trace_entry(XFS_ITOV(ip
), __FUNCTION__
, (inst_t
*)__return_address
);
2406 error
= XFS_QM_DQATTACH(mp
, dp
, 0);
2407 if (!error
&& dp
!= ip
)
2408 error
= XFS_QM_DQATTACH(mp
, ip
, 0);
2410 REMOVE_DEBUG_TRACE(__LINE__
);
2415 tp
= xfs_trans_alloc(mp
, XFS_TRANS_REMOVE
);
2416 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
2418 * We try to get the real space reservation first,
2419 * allowing for directory btree deletion(s) implying
2420 * possible bmap insert(s). If we can't get the space
2421 * reservation then we use 0 instead, and avoid the bmap
2422 * btree insert(s) in the directory code by, if the bmap
2423 * insert tries to happen, instead trimming the LAST
2424 * block from the directory.
2426 resblks
= XFS_REMOVE_SPACE_RES(mp
);
2427 error
= xfs_trans_reserve(tp
, resblks
, XFS_REMOVE_LOG_RES(mp
), 0,
2428 XFS_TRANS_PERM_LOG_RES
, XFS_REMOVE_LOG_COUNT
);
2429 if (error
== ENOSPC
) {
2431 error
= xfs_trans_reserve(tp
, 0, XFS_REMOVE_LOG_RES(mp
), 0,
2432 XFS_TRANS_PERM_LOG_RES
, XFS_REMOVE_LOG_COUNT
);
2435 ASSERT(error
!= ENOSPC
);
2436 REMOVE_DEBUG_TRACE(__LINE__
);
2437 xfs_trans_cancel(tp
, 0);
2442 error
= xfs_lock_dir_and_entry(dp
, dentry
, ip
);
2444 REMOVE_DEBUG_TRACE(__LINE__
);
2445 xfs_trans_cancel(tp
, cancel_flags
);
2451 * At this point, we've gotten both the directory and the entry
2454 xfs_trans_ijoin(tp
, dp
, XFS_ILOCK_EXCL
);
2457 * Increment vnode ref count only in this case since
2458 * there's an extra vnode reference in the case where
2462 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
);
2466 * Entry must exist since we did a lookup in xfs_lock_dir_and_entry.
2468 XFS_BMAP_INIT(&free_list
, &first_block
);
2469 error
= xfs_dir_removename(tp
, dp
, name
, namelen
, ip
->i_ino
,
2470 &first_block
, &free_list
, 0);
2472 ASSERT(error
!= ENOENT
);
2473 REMOVE_DEBUG_TRACE(__LINE__
);
2476 xfs_ichgtime(dp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
2479 xfs_trans_log_inode(tp
, dp
, XFS_ILOG_CORE
);
2481 error
= xfs_droplink(tp
, ip
);
2483 REMOVE_DEBUG_TRACE(__LINE__
);
2487 /* Determine if this is the last link while
2488 * we are in the transaction.
2490 link_zero
= (ip
)->i_d
.di_nlink
==0;
2493 * Take an extra ref on the inode so that it doesn't
2494 * go to xfs_inactive() from within the commit.
2499 * If this is a synchronous mount, make sure that the
2500 * remove transaction goes to disk before returning to
2503 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
2504 xfs_trans_set_sync(tp
);
2507 error
= xfs_bmap_finish(&tp
, &free_list
, &committed
);
2509 REMOVE_DEBUG_TRACE(__LINE__
);
2513 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
);
2520 * Before we drop our extra reference to the inode, purge it
2521 * from the refcache if it is there. By waiting until afterwards
2522 * to do the IRELE, we ensure that we won't go inactive in the
2523 * xfs_refcache_purge_ip routine (although that would be OK).
2525 xfs_refcache_purge_ip(ip
);
2527 vn_trace_exit(XFS_ITOV(ip
), __FUNCTION__
, (inst_t
*)__return_address
);
2530 * Let interposed file systems know about removed links.
2532 bhv_vop_link_removed(XFS_ITOV(ip
), dir_vp
, link_zero
);
2536 /* Fall through to std_return with error = 0 */
2538 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
,
2539 DM_EVENT_POSTREMOVE
)) {
2540 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTREMOVE
,
2541 dir_vp
, DM_RIGHT_NULL
,
2542 NULL
, DM_RIGHT_NULL
,
2543 name
, NULL
, dm_di_mode
, error
, 0);
2548 xfs_bmap_cancel(&free_list
);
2549 cancel_flags
|= XFS_TRANS_ABORT
;
2550 xfs_trans_cancel(tp
, cancel_flags
);
2555 * In this case make sure to not release the inode until after
2556 * the current transaction is aborted. Releasing it beforehand
2557 * can cause us to go to xfs_inactive and start a recursive
2558 * transaction which can easily deadlock with the current one.
2560 xfs_bmap_cancel(&free_list
);
2561 cancel_flags
|= XFS_TRANS_ABORT
;
2562 xfs_trans_cancel(tp
, cancel_flags
);
2565 * Before we drop our extra reference to the inode, purge it
2566 * from the refcache if it is there. By waiting until afterwards
2567 * to do the IRELE, we ensure that we won't go inactive in the
2568 * xfs_refcache_purge_ip routine (although that would be OK).
2570 xfs_refcache_purge_ip(ip
);
2584 bhv_desc_t
*target_dir_bdp
,
2585 bhv_vnode_t
*src_vp
,
2586 bhv_vname_t
*dentry
,
2589 xfs_inode_t
*tdp
, *sip
;
2592 xfs_inode_t
*ips
[2];
2594 xfs_bmap_free_t free_list
;
2595 xfs_fsblock_t first_block
;
2598 bhv_vnode_t
*target_dir_vp
;
2600 char *target_name
= VNAME(dentry
);
2603 target_dir_vp
= BHV_TO_VNODE(target_dir_bdp
);
2604 vn_trace_entry(target_dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
2605 vn_trace_entry(src_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
2607 target_namelen
= VNAMELEN(dentry
);
2608 ASSERT(!VN_ISDIR(src_vp
));
2610 sip
= xfs_vtoi(src_vp
);
2611 tdp
= XFS_BHVTOI(target_dir_bdp
);
2613 if (XFS_FORCED_SHUTDOWN(mp
))
2614 return XFS_ERROR(EIO
);
2616 if (DM_EVENT_ENABLED(src_vp
->v_vfsp
, tdp
, DM_EVENT_LINK
)) {
2617 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_LINK
,
2618 target_dir_vp
, DM_RIGHT_NULL
,
2619 src_vp
, DM_RIGHT_NULL
,
2620 target_name
, NULL
, 0, 0, 0);
2625 /* Return through std_return after this point. */
2627 error
= XFS_QM_DQATTACH(mp
, sip
, 0);
2628 if (!error
&& sip
!= tdp
)
2629 error
= XFS_QM_DQATTACH(mp
, tdp
, 0);
2633 tp
= xfs_trans_alloc(mp
, XFS_TRANS_LINK
);
2634 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
2635 resblks
= XFS_LINK_SPACE_RES(mp
, target_namelen
);
2636 error
= xfs_trans_reserve(tp
, resblks
, XFS_LINK_LOG_RES(mp
), 0,
2637 XFS_TRANS_PERM_LOG_RES
, XFS_LINK_LOG_COUNT
);
2638 if (error
== ENOSPC
) {
2640 error
= xfs_trans_reserve(tp
, 0, XFS_LINK_LOG_RES(mp
), 0,
2641 XFS_TRANS_PERM_LOG_RES
, XFS_LINK_LOG_COUNT
);
2648 if (sip
->i_ino
< tdp
->i_ino
) {
2656 xfs_lock_inodes(ips
, 2, 0, XFS_ILOCK_EXCL
);
2659 * Increment vnode ref counts since xfs_trans_commit &
2660 * xfs_trans_cancel will both unlock the inodes and
2661 * decrement the associated ref counts.
2664 VN_HOLD(target_dir_vp
);
2665 xfs_trans_ijoin(tp
, sip
, XFS_ILOCK_EXCL
);
2666 xfs_trans_ijoin(tp
, tdp
, XFS_ILOCK_EXCL
);
2669 * If the source has too many links, we can't make any more to it.
2671 if (sip
->i_d
.di_nlink
>= XFS_MAXLINK
) {
2672 error
= XFS_ERROR(EMLINK
);
2677 * If we are using project inheritance, we only allow hard link
2678 * creation in our tree when the project IDs are the same; else
2679 * the tree quota mechanism could be circumvented.
2681 if (unlikely((tdp
->i_d
.di_flags
& XFS_DIFLAG_PROJINHERIT
) &&
2682 (tdp
->i_d
.di_projid
!= sip
->i_d
.di_projid
))) {
2683 error
= XFS_ERROR(EXDEV
);
2688 (error
= xfs_dir_canenter(tp
, tdp
, target_name
, target_namelen
)))
2691 XFS_BMAP_INIT(&free_list
, &first_block
);
2693 error
= xfs_dir_createname(tp
, tdp
, target_name
, target_namelen
,
2694 sip
->i_ino
, &first_block
, &free_list
,
2698 xfs_ichgtime(tdp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
2700 xfs_trans_log_inode(tp
, tdp
, XFS_ILOG_CORE
);
2702 error
= xfs_bumplink(tp
, sip
);
2707 * If this is a synchronous mount, make sure that the
2708 * link transaction goes to disk before returning to
2711 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
2712 xfs_trans_set_sync(tp
);
2715 error
= xfs_bmap_finish (&tp
, &free_list
, &committed
);
2717 xfs_bmap_cancel(&free_list
);
2721 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
);
2725 /* Fall through to std_return with error = 0. */
2727 if (DM_EVENT_ENABLED(src_vp
->v_vfsp
, sip
,
2728 DM_EVENT_POSTLINK
)) {
2729 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTLINK
,
2730 target_dir_vp
, DM_RIGHT_NULL
,
2731 src_vp
, DM_RIGHT_NULL
,
2732 target_name
, NULL
, 0, error
, 0);
2737 cancel_flags
|= XFS_TRANS_ABORT
;
2741 xfs_trans_cancel(tp
, cancel_flags
);
2752 bhv_desc_t
*dir_bdp
,
2753 bhv_vname_t
*dentry
,
2758 char *dir_name
= VNAME(dentry
);
2760 xfs_inode_t
*cdp
; /* inode of created dir */
2761 bhv_vnode_t
*cvp
; /* vnode of created dir */
2767 xfs_bmap_free_t free_list
;
2768 xfs_fsblock_t first_block
;
2769 bhv_vnode_t
*dir_vp
;
2770 boolean_t dp_joined_to_trans
;
2771 boolean_t created
= B_FALSE
;
2772 int dm_event_sent
= 0;
2774 struct xfs_dquot
*udqp
, *gdqp
;
2779 dir_vp
= BHV_TO_VNODE(dir_bdp
);
2780 dp
= XFS_BHVTOI(dir_bdp
);
2783 if (XFS_FORCED_SHUTDOWN(mp
))
2784 return XFS_ERROR(EIO
);
2786 dir_namelen
= VNAMELEN(dentry
);
2789 dp_joined_to_trans
= B_FALSE
;
2790 dm_di_mode
= vap
->va_mode
;
2792 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_CREATE
)) {
2793 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_CREATE
,
2794 dir_vp
, DM_RIGHT_NULL
, NULL
,
2795 DM_RIGHT_NULL
, dir_name
, NULL
,
2802 /* Return through std_return after this point. */
2804 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
2808 if (dp
->i_d
.di_flags
& XFS_DIFLAG_PROJINHERIT
)
2809 prid
= dp
->i_d
.di_projid
;
2810 else if (vap
->va_mask
& XFS_AT_PROJID
)
2811 prid
= (xfs_prid_t
)vap
->va_projid
;
2813 prid
= (xfs_prid_t
)dfltprid
;
2816 * Make sure that we have allocated dquot(s) on disk.
2818 error
= XFS_QM_DQVOPALLOC(mp
, dp
,
2819 current_fsuid(credp
), current_fsgid(credp
), prid
,
2820 XFS_QMOPT_QUOTALL
| XFS_QMOPT_INHERIT
, &udqp
, &gdqp
);
2824 tp
= xfs_trans_alloc(mp
, XFS_TRANS_MKDIR
);
2825 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
2826 resblks
= XFS_MKDIR_SPACE_RES(mp
, dir_namelen
);
2827 error
= xfs_trans_reserve(tp
, resblks
, XFS_MKDIR_LOG_RES(mp
), 0,
2828 XFS_TRANS_PERM_LOG_RES
, XFS_MKDIR_LOG_COUNT
);
2829 if (error
== ENOSPC
) {
2831 error
= xfs_trans_reserve(tp
, 0, XFS_MKDIR_LOG_RES(mp
), 0,
2832 XFS_TRANS_PERM_LOG_RES
,
2833 XFS_MKDIR_LOG_COUNT
);
2841 xfs_ilock(dp
, XFS_ILOCK_EXCL
);
2844 * Check for directory link count overflow.
2846 if (dp
->i_d
.di_nlink
>= XFS_MAXLINK
) {
2847 error
= XFS_ERROR(EMLINK
);
2852 * Reserve disk quota and the inode.
2854 error
= XFS_TRANS_RESERVE_QUOTA(mp
, tp
, udqp
, gdqp
, resblks
, 1, 0);
2859 (error
= xfs_dir_canenter(tp
, dp
, dir_name
, dir_namelen
)))
2862 * create the directory inode.
2864 error
= xfs_dir_ialloc(&tp
, dp
, vap
->va_mode
, 2,
2865 0, credp
, prid
, resblks
> 0,
2868 if (error
== ENOSPC
)
2875 * Now we add the directory inode to the transaction.
2876 * We waited until now since xfs_dir_ialloc might start
2877 * a new transaction. Had we joined the transaction
2878 * earlier, the locks might have gotten released.
2881 xfs_trans_ijoin(tp
, dp
, XFS_ILOCK_EXCL
);
2882 dp_joined_to_trans
= B_TRUE
;
2884 XFS_BMAP_INIT(&free_list
, &first_block
);
2886 error
= xfs_dir_createname(tp
, dp
, dir_name
, dir_namelen
, cdp
->i_ino
,
2887 &first_block
, &free_list
, resblks
?
2888 resblks
- XFS_IALLOC_SPACE_RES(mp
) : 0);
2890 ASSERT(error
!= ENOSPC
);
2893 xfs_ichgtime(dp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
2896 * Bump the in memory version number of the parent directory
2897 * so that other processes accessing it will recognize that
2898 * the directory has changed.
2902 error
= xfs_dir_init(tp
, cdp
, dp
);
2907 error
= xfs_bumplink(tp
, dp
);
2911 cvp
= XFS_ITOV(cdp
);
2919 * Attach the dquots to the new inode and modify the icount incore.
2921 XFS_QM_DQVOPCREATE(mp
, tp
, cdp
, udqp
, gdqp
);
2924 * If this is a synchronous mount, make sure that the
2925 * mkdir transaction goes to disk before returning to
2928 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
2929 xfs_trans_set_sync(tp
);
2932 error
= xfs_bmap_finish(&tp
, &free_list
, &committed
);
2938 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
);
2939 XFS_QM_DQRELE(mp
, udqp
);
2940 XFS_QM_DQRELE(mp
, gdqp
);
2945 /* Fall through to std_return with error = 0 or errno from
2946 * xfs_trans_commit. */
2949 if ( (created
|| (error
!= 0 && dm_event_sent
!= 0)) &&
2950 DM_EVENT_ENABLED(dir_vp
->v_vfsp
, XFS_BHVTOI(dir_bdp
),
2951 DM_EVENT_POSTCREATE
)) {
2952 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTCREATE
,
2953 dir_vp
, DM_RIGHT_NULL
,
2954 created
? XFS_ITOV(cdp
):NULL
,
2957 dm_di_mode
, error
, 0);
2963 xfs_bmap_cancel(&free_list
);
2965 cancel_flags
|= XFS_TRANS_ABORT
;
2967 xfs_trans_cancel(tp
, cancel_flags
);
2968 XFS_QM_DQRELE(mp
, udqp
);
2969 XFS_QM_DQRELE(mp
, gdqp
);
2971 if (!dp_joined_to_trans
&& (dp
!= NULL
)) {
2972 xfs_iunlock(dp
, XFS_ILOCK_EXCL
);
2985 bhv_desc_t
*dir_bdp
,
2986 bhv_vname_t
*dentry
,
2989 char *name
= VNAME(dentry
);
2991 xfs_inode_t
*cdp
; /* child directory */
2995 xfs_bmap_free_t free_list
;
2996 xfs_fsblock_t first_block
;
2999 bhv_vnode_t
*dir_vp
;
3000 int dm_di_mode
= S_IFDIR
;
3005 dir_vp
= BHV_TO_VNODE(dir_bdp
);
3006 dp
= XFS_BHVTOI(dir_bdp
);
3009 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
3011 if (XFS_FORCED_SHUTDOWN(XFS_BHVTOI(dir_bdp
)->i_mount
))
3012 return XFS_ERROR(EIO
);
3013 namelen
= VNAMELEN(dentry
);
3015 if (!xfs_get_dir_entry(dentry
, &cdp
)) {
3016 dm_di_mode
= cdp
->i_d
.di_mode
;
3020 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_REMOVE
)) {
3021 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_REMOVE
,
3022 dir_vp
, DM_RIGHT_NULL
,
3023 NULL
, DM_RIGHT_NULL
,
3024 name
, NULL
, dm_di_mode
, 0, 0);
3026 return XFS_ERROR(error
);
3029 /* Return through std_return after this point. */
3034 * We need to get a reference to cdp before we get our log
3035 * reservation. The reason for this is that we cannot call
3036 * xfs_iget for an inode for which we do not have a reference
3037 * once we've acquired a log reservation. This is because the
3038 * inode we are trying to get might be in xfs_inactive going
3039 * for a log reservation. Since we'll have to wait for the
3040 * inactive code to complete before returning from xfs_iget,
3041 * we need to make sure that we don't have log space reserved
3042 * when we call xfs_iget. Instead we get an unlocked reference
3043 * to the inode before getting our log reservation.
3045 error
= xfs_get_dir_entry(dentry
, &cdp
);
3047 REMOVE_DEBUG_TRACE(__LINE__
);
3051 dm_di_mode
= cdp
->i_d
.di_mode
;
3054 * Get the dquots for the inodes.
3056 error
= XFS_QM_DQATTACH(mp
, dp
, 0);
3057 if (!error
&& dp
!= cdp
)
3058 error
= XFS_QM_DQATTACH(mp
, cdp
, 0);
3061 REMOVE_DEBUG_TRACE(__LINE__
);
3065 tp
= xfs_trans_alloc(mp
, XFS_TRANS_RMDIR
);
3066 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
3068 * We try to get the real space reservation first,
3069 * allowing for directory btree deletion(s) implying
3070 * possible bmap insert(s). If we can't get the space
3071 * reservation then we use 0 instead, and avoid the bmap
3072 * btree insert(s) in the directory code by, if the bmap
3073 * insert tries to happen, instead trimming the LAST
3074 * block from the directory.
3076 resblks
= XFS_REMOVE_SPACE_RES(mp
);
3077 error
= xfs_trans_reserve(tp
, resblks
, XFS_REMOVE_LOG_RES(mp
), 0,
3078 XFS_TRANS_PERM_LOG_RES
, XFS_DEFAULT_LOG_COUNT
);
3079 if (error
== ENOSPC
) {
3081 error
= xfs_trans_reserve(tp
, 0, XFS_REMOVE_LOG_RES(mp
), 0,
3082 XFS_TRANS_PERM_LOG_RES
, XFS_DEFAULT_LOG_COUNT
);
3085 ASSERT(error
!= ENOSPC
);
3090 XFS_BMAP_INIT(&free_list
, &first_block
);
3093 * Now lock the child directory inode and the parent directory
3094 * inode in the proper order. This will take care of validating
3095 * that the directory entry for the child directory inode has
3096 * not changed while we were obtaining a log reservation.
3098 error
= xfs_lock_dir_and_entry(dp
, dentry
, cdp
);
3100 xfs_trans_cancel(tp
, cancel_flags
);
3105 xfs_trans_ijoin(tp
, dp
, XFS_ILOCK_EXCL
);
3108 * Only increment the parent directory vnode count if
3109 * we didn't bump it in looking up cdp. The only time
3110 * we don't bump it is when we're looking up ".".
3116 xfs_trans_ijoin(tp
, cdp
, XFS_ILOCK_EXCL
);
3118 ASSERT(cdp
->i_d
.di_nlink
>= 2);
3119 if (cdp
->i_d
.di_nlink
!= 2) {
3120 error
= XFS_ERROR(ENOTEMPTY
);
3123 if (!xfs_dir_isempty(cdp
)) {
3124 error
= XFS_ERROR(ENOTEMPTY
);
3128 error
= xfs_dir_removename(tp
, dp
, name
, namelen
, cdp
->i_ino
,
3129 &first_block
, &free_list
, resblks
);
3133 xfs_ichgtime(dp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
3136 * Bump the in memory generation count on the parent
3137 * directory so that other can know that it has changed.
3142 * Drop the link from cdp's "..".
3144 error
= xfs_droplink(tp
, dp
);
3150 * Drop the link from dp to cdp.
3152 error
= xfs_droplink(tp
, cdp
);
3158 * Drop the "." link from cdp to self.
3160 error
= xfs_droplink(tp
, cdp
);
3165 /* Determine these before committing transaction */
3166 last_cdp_link
= (cdp
)->i_d
.di_nlink
==0;
3169 * Take an extra ref on the child vnode so that it
3170 * does not go to xfs_inactive() from within the commit.
3175 * If this is a synchronous mount, make sure that the
3176 * rmdir transaction goes to disk before returning to
3179 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
3180 xfs_trans_set_sync(tp
);
3183 error
= xfs_bmap_finish (&tp
, &free_list
, &committed
);
3185 xfs_bmap_cancel(&free_list
);
3186 xfs_trans_cancel(tp
, (XFS_TRANS_RELEASE_LOG_RES
|
3192 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
);
3200 * Let interposed file systems know about removed links.
3202 bhv_vop_link_removed(XFS_ITOV(cdp
), dir_vp
, last_cdp_link
);
3206 /* Fall through to std_return with error = 0 or the errno
3207 * from xfs_trans_commit. */
3209 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_POSTREMOVE
)) {
3210 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTREMOVE
,
3211 dir_vp
, DM_RIGHT_NULL
,
3212 NULL
, DM_RIGHT_NULL
,
3213 name
, NULL
, dm_di_mode
,
3219 xfs_bmap_cancel(&free_list
);
3220 cancel_flags
|= XFS_TRANS_ABORT
;
3224 xfs_trans_cancel(tp
, cancel_flags
);
3230 * Read dp's entries starting at uiop->uio_offset and translate them into
3231 * bufsize bytes worth of struct dirents starting at bufbase.
3235 bhv_desc_t
*dir_bdp
,
3241 xfs_trans_t
*tp
= NULL
;
3245 vn_trace_entry(BHV_TO_VNODE(dir_bdp
), __FUNCTION__
,
3246 (inst_t
*)__return_address
);
3247 dp
= XFS_BHVTOI(dir_bdp
);
3249 if (XFS_FORCED_SHUTDOWN(dp
->i_mount
))
3250 return XFS_ERROR(EIO
);
3252 lock_mode
= xfs_ilock_map_shared(dp
);
3253 error
= xfs_dir_getdents(tp
, dp
, uiop
, eofp
);
3254 xfs_iunlock_map_shared(dp
, lock_mode
);
3261 bhv_desc_t
*dir_bdp
,
3262 bhv_vname_t
*dentry
,
3274 xfs_bmap_free_t free_list
;
3275 xfs_fsblock_t first_block
;
3276 boolean_t dp_joined_to_trans
;
3277 bhv_vnode_t
*dir_vp
;
3280 xfs_fileoff_t first_fsb
;
3281 xfs_filblks_t fs_blocks
;
3283 xfs_bmbt_irec_t mval
[SYMLINK_MAPS
];
3290 struct xfs_dquot
*udqp
, *gdqp
;
3292 char *link_name
= VNAME(dentry
);
3296 dir_vp
= BHV_TO_VNODE(dir_bdp
);
3297 dp
= XFS_BHVTOI(dir_bdp
);
3298 dp_joined_to_trans
= B_FALSE
;
3303 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
3307 if (XFS_FORCED_SHUTDOWN(mp
))
3308 return XFS_ERROR(EIO
);
3310 link_namelen
= VNAMELEN(dentry
);
3313 * Check component lengths of the target path name.
3315 pathlen
= strlen(target_path
);
3316 if (pathlen
>= MAXPATHLEN
) /* total string too long */
3317 return XFS_ERROR(ENAMETOOLONG
);
3318 if (pathlen
>= MAXNAMELEN
) { /* is any component too long? */
3322 for (total
= 0, path
= target_path
; total
< pathlen
;) {
3326 while(*path
== '/') {
3332 * Count up to the next slash or end of path.
3333 * Error out if the component is bigger than MAXNAMELEN.
3335 for(len
= 0; *path
!= '/' && total
< pathlen
;total
++, path
++) {
3336 if (++len
>= MAXNAMELEN
) {
3337 error
= ENAMETOOLONG
;
3344 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_SYMLINK
)) {
3345 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_SYMLINK
, dir_vp
,
3346 DM_RIGHT_NULL
, NULL
, DM_RIGHT_NULL
,
3347 link_name
, target_path
, 0, 0, 0);
3352 /* Return through std_return after this point. */
3355 if (dp
->i_d
.di_flags
& XFS_DIFLAG_PROJINHERIT
)
3356 prid
= dp
->i_d
.di_projid
;
3357 else if (vap
->va_mask
& XFS_AT_PROJID
)
3358 prid
= (xfs_prid_t
)vap
->va_projid
;
3360 prid
= (xfs_prid_t
)dfltprid
;
3363 * Make sure that we have allocated dquot(s) on disk.
3365 error
= XFS_QM_DQVOPALLOC(mp
, dp
,
3366 current_fsuid(credp
), current_fsgid(credp
), prid
,
3367 XFS_QMOPT_QUOTALL
| XFS_QMOPT_INHERIT
, &udqp
, &gdqp
);
3371 tp
= xfs_trans_alloc(mp
, XFS_TRANS_SYMLINK
);
3372 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
3374 * The symlink will fit into the inode data fork?
3375 * There can't be any attributes so we get the whole variable part.
3377 if (pathlen
<= XFS_LITINO(mp
))
3380 fs_blocks
= XFS_B_TO_FSB(mp
, pathlen
);
3381 resblks
= XFS_SYMLINK_SPACE_RES(mp
, link_namelen
, fs_blocks
);
3382 error
= xfs_trans_reserve(tp
, resblks
, XFS_SYMLINK_LOG_RES(mp
), 0,
3383 XFS_TRANS_PERM_LOG_RES
, XFS_SYMLINK_LOG_COUNT
);
3384 if (error
== ENOSPC
&& fs_blocks
== 0) {
3386 error
= xfs_trans_reserve(tp
, 0, XFS_SYMLINK_LOG_RES(mp
), 0,
3387 XFS_TRANS_PERM_LOG_RES
, XFS_SYMLINK_LOG_COUNT
);
3395 xfs_ilock(dp
, XFS_ILOCK_EXCL
);
3398 * Check whether the directory allows new symlinks or not.
3400 if (dp
->i_d
.di_flags
& XFS_DIFLAG_NOSYMLINKS
) {
3401 error
= XFS_ERROR(EPERM
);
3406 * Reserve disk quota : blocks and inode.
3408 error
= XFS_TRANS_RESERVE_QUOTA(mp
, tp
, udqp
, gdqp
, resblks
, 1, 0);
3413 * Check for ability to enter directory entry, if no space reserved.
3416 (error
= xfs_dir_canenter(tp
, dp
, link_name
, link_namelen
)))
3419 * Initialize the bmap freelist prior to calling either
3420 * bmapi or the directory create code.
3422 XFS_BMAP_INIT(&free_list
, &first_block
);
3425 * Allocate an inode for the symlink.
3427 error
= xfs_dir_ialloc(&tp
, dp
, S_IFLNK
| (vap
->va_mode
&~S_IFMT
),
3428 1, 0, credp
, prid
, resblks
> 0, &ip
, NULL
);
3430 if (error
== ENOSPC
)
3437 xfs_trans_ijoin(tp
, dp
, XFS_ILOCK_EXCL
);
3438 dp_joined_to_trans
= B_TRUE
;
3441 * Also attach the dquot(s) to it, if applicable.
3443 XFS_QM_DQVOPCREATE(mp
, tp
, ip
, udqp
, gdqp
);
3446 resblks
-= XFS_IALLOC_SPACE_RES(mp
);
3448 * If the symlink will fit into the inode, write it inline.
3450 if (pathlen
<= XFS_IFORK_DSIZE(ip
)) {
3451 xfs_idata_realloc(ip
, pathlen
, XFS_DATA_FORK
);
3452 memcpy(ip
->i_df
.if_u1
.if_data
, target_path
, pathlen
);
3453 ip
->i_d
.di_size
= pathlen
;
3456 * The inode was initially created in extent format.
3458 ip
->i_df
.if_flags
&= ~(XFS_IFEXTENTS
| XFS_IFBROOT
);
3459 ip
->i_df
.if_flags
|= XFS_IFINLINE
;
3461 ip
->i_d
.di_format
= XFS_DINODE_FMT_LOCAL
;
3462 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_DDATA
| XFS_ILOG_CORE
);
3466 nmaps
= SYMLINK_MAPS
;
3468 error
= xfs_bmapi(tp
, ip
, first_fsb
, fs_blocks
,
3469 XFS_BMAPI_WRITE
| XFS_BMAPI_METADATA
,
3470 &first_block
, resblks
, mval
, &nmaps
,
3477 resblks
-= fs_blocks
;
3478 ip
->i_d
.di_size
= pathlen
;
3479 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
3481 cur_chunk
= target_path
;
3482 for (n
= 0; n
< nmaps
; n
++) {
3483 d
= XFS_FSB_TO_DADDR(mp
, mval
[n
].br_startblock
);
3484 byte_cnt
= XFS_FSB_TO_B(mp
, mval
[n
].br_blockcount
);
3485 bp
= xfs_trans_get_buf(tp
, mp
->m_ddev_targp
, d
,
3486 BTOBB(byte_cnt
), 0);
3487 ASSERT(bp
&& !XFS_BUF_GETERROR(bp
));
3488 if (pathlen
< byte_cnt
) {
3491 pathlen
-= byte_cnt
;
3493 memcpy(XFS_BUF_PTR(bp
), cur_chunk
, byte_cnt
);
3494 cur_chunk
+= byte_cnt
;
3496 xfs_trans_log_buf(tp
, bp
, 0, byte_cnt
- 1);
3501 * Create the directory entry for the symlink.
3503 error
= xfs_dir_createname(tp
, dp
, link_name
, link_namelen
, ip
->i_ino
,
3504 &first_block
, &free_list
, resblks
);
3507 xfs_ichgtime(dp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
3508 xfs_trans_log_inode(tp
, dp
, XFS_ILOG_CORE
);
3511 * Bump the in memory version number of the parent directory
3512 * so that other processes accessing it will recognize that
3513 * the directory has changed.
3518 * If this is a synchronous mount, make sure that the
3519 * symlink transaction goes to disk before returning to
3522 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
3523 xfs_trans_set_sync(tp
);
3527 * xfs_trans_commit normally decrements the vnode ref count
3528 * when it unlocks the inode. Since we want to return the
3529 * vnode to the caller, we bump the vnode ref count now.
3533 error
= xfs_bmap_finish(&tp
, &free_list
, &committed
);
3537 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
);
3538 XFS_QM_DQRELE(mp
, udqp
);
3539 XFS_QM_DQRELE(mp
, gdqp
);
3541 /* Fall through to std_return with error = 0 or errno from
3542 * xfs_trans_commit */
3544 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, XFS_BHVTOI(dir_bdp
),
3545 DM_EVENT_POSTSYMLINK
)) {
3546 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTSYMLINK
,
3547 dir_vp
, DM_RIGHT_NULL
,
3548 error
? NULL
: XFS_ITOV(ip
),
3549 DM_RIGHT_NULL
, link_name
, target_path
,
3565 xfs_bmap_cancel(&free_list
);
3566 cancel_flags
|= XFS_TRANS_ABORT
;
3568 xfs_trans_cancel(tp
, cancel_flags
);
3569 XFS_QM_DQRELE(mp
, udqp
);
3570 XFS_QM_DQRELE(mp
, gdqp
);
3572 if (!dp_joined_to_trans
&& (dp
!= NULL
)) {
3573 xfs_iunlock(dp
, XFS_ILOCK_EXCL
);
3583 * A fid routine that takes a pointer to a previously allocated
3584 * fid structure (like xfs_fast_fid) but uses a 64 bit inode number.
3594 vn_trace_entry(BHV_TO_VNODE(bdp
), __FUNCTION__
,
3595 (inst_t
*)__return_address
);
3596 ASSERT(sizeof(fid_t
) >= sizeof(xfs_fid2_t
));
3598 xfid
= (xfs_fid2_t
*)fidp
;
3599 ip
= XFS_BHVTOI(bdp
);
3600 xfid
->fid_len
= sizeof(xfs_fid2_t
) - sizeof(xfid
->fid_len
);
3603 * use memcpy because the inode is a long long and there's no
3604 * assurance that xfid->fid_ino is properly aligned.
3606 memcpy(&xfid
->fid_ino
, &ip
->i_ino
, sizeof(xfid
->fid_ino
));
3607 xfid
->fid_gen
= ip
->i_d
.di_gen
;
3619 bhv_vrwlock_t locktype
)
3624 vp
= BHV_TO_VNODE(bdp
);
3627 ip
= XFS_BHVTOI(bdp
);
3628 if (locktype
== VRWLOCK_WRITE
) {
3629 xfs_ilock(ip
, XFS_IOLOCK_EXCL
);
3630 } else if (locktype
== VRWLOCK_TRY_READ
) {
3631 return xfs_ilock_nowait(ip
, XFS_IOLOCK_SHARED
);
3632 } else if (locktype
== VRWLOCK_TRY_WRITE
) {
3633 return xfs_ilock_nowait(ip
, XFS_IOLOCK_EXCL
);
3635 ASSERT((locktype
== VRWLOCK_READ
) ||
3636 (locktype
== VRWLOCK_WRITE_DIRECT
));
3637 xfs_ilock(ip
, XFS_IOLOCK_SHARED
);
3650 bhv_vrwlock_t locktype
)
3655 vp
= BHV_TO_VNODE(bdp
);
3658 ip
= XFS_BHVTOI(bdp
);
3659 if (locktype
== VRWLOCK_WRITE
) {
3661 * In the write case, we may have added a new entry to
3662 * the reference cache. This might store a pointer to
3663 * an inode to be released in this inode. If it is there,
3664 * clear the pointer and release the inode after unlocking
3667 xfs_refcache_iunlock(ip
, XFS_IOLOCK_EXCL
);
3669 ASSERT((locktype
== VRWLOCK_READ
) ||
3670 (locktype
== VRWLOCK_WRITE_DIRECT
));
3671 xfs_iunlock(ip
, XFS_IOLOCK_SHARED
);
3683 xfs_inode_log_item_t
*iip
;
3686 ip
= XFS_BHVTOI(bdp
);
3690 if (XFS_FORCED_SHUTDOWN(mp
))
3691 return XFS_ERROR(EIO
);
3694 * Bypass inodes which have already been cleaned by
3695 * the inode flush clustering code inside xfs_iflush
3697 if ((ip
->i_update_core
== 0) &&
3698 ((iip
== NULL
) || !(iip
->ili_format
.ilf_fields
& XFS_ILOG_ALL
)))
3701 if (flags
& FLUSH_LOG
) {
3702 if (iip
&& iip
->ili_last_lsn
) {
3703 xlog_t
*log
= mp
->m_log
;
3705 int s
, log_flags
= XFS_LOG_FORCE
;
3707 s
= GRANT_LOCK(log
);
3708 sync_lsn
= log
->l_last_sync_lsn
;
3709 GRANT_UNLOCK(log
, s
);
3711 if ((XFS_LSN_CMP(iip
->ili_last_lsn
, sync_lsn
) <= 0))
3714 if (flags
& FLUSH_SYNC
)
3715 log_flags
|= XFS_LOG_SYNC
;
3716 return xfs_log_force(mp
, iip
->ili_last_lsn
, log_flags
);
3721 * We make this non-blocking if the inode is contended,
3722 * return EAGAIN to indicate to the caller that they
3723 * did not succeed. This prevents the flush path from
3724 * blocking on inodes inside another operation right
3725 * now, they get caught later by xfs_sync.
3727 if (flags
& FLUSH_INODE
) {
3730 if (xfs_ipincount(ip
))
3733 if (flags
& FLUSH_SYNC
) {
3734 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
3736 } else if (xfs_ilock_nowait(ip
, XFS_ILOCK_SHARED
)) {
3737 if (xfs_ipincount(ip
) || !xfs_iflock_nowait(ip
)) {
3738 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
3745 if (flags
& FLUSH_SYNC
)
3746 flush_flags
= XFS_IFLUSH_SYNC
;
3748 flush_flags
= XFS_IFLUSH_ASYNC
;
3750 error
= xfs_iflush(ip
, flush_flags
);
3751 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
3769 if (!capable(CAP_SYS_ADMIN
))
3770 return XFS_ERROR(EPERM
);
3772 ip
= XFS_BHVTOI(bdp
);
3775 if (XFS_FORCED_SHUTDOWN(mp
))
3776 return XFS_ERROR(EIO
);
3778 tp
= xfs_trans_alloc(mp
, XFS_TRANS_SET_DMATTRS
);
3779 error
= xfs_trans_reserve(tp
, 0, XFS_ICHANGE_LOG_RES (mp
), 0, 0, 0);
3781 xfs_trans_cancel(tp
, 0);
3784 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
3785 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
);
3787 ip
->i_iocore
.io_dmevmask
= ip
->i_d
.di_dmevmask
= evmask
;
3788 ip
->i_iocore
.io_dmstate
= ip
->i_d
.di_dmstate
= state
;
3790 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
3792 error
= xfs_trans_commit(tp
, 0);
3804 vp
= BHV_TO_VNODE(bdp
);
3805 ip
= XFS_BHVTOI(bdp
);
3807 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
3809 ASSERT(!VN_MAPPED(vp
));
3811 /* bad inode, get out here ASAP */
3819 ASSERT(XFS_FORCED_SHUTDOWN(ip
->i_mount
) || ip
->i_delayed_blks
== 0);
3822 * Make sure the atime in the XFS inode is correct before freeing the
3825 xfs_synchronize_atime(ip
);
3828 * If we have nothing to flush with this inode then complete the
3829 * teardown now, otherwise break the link between the xfs inode and the
3830 * linux inode and clean up the xfs inode later. This avoids flushing
3831 * the inode to disk during the delete operation itself.
3833 * When breaking the link, we need to set the XFS_IRECLAIMABLE flag
3834 * first to ensure that xfs_iunpin() will never see an xfs inode
3835 * that has a linux inode being reclaimed. Synchronisation is provided
3836 * by the i_flags_lock.
3838 if (!ip
->i_update_core
&& (ip
->i_itemp
== NULL
)) {
3839 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
3841 return xfs_finish_reclaim(ip
, 1, XFS_IFLUSH_DELWRI_ELSE_SYNC
);
3843 xfs_mount_t
*mp
= ip
->i_mount
;
3845 /* Protect sync and unpin from us */
3846 XFS_MOUNT_ILOCK(mp
);
3847 spin_lock(&ip
->i_flags_lock
);
3848 __xfs_iflags_set(ip
, XFS_IRECLAIMABLE
);
3849 vn_bhv_remove(VN_BHV_HEAD(vp
), XFS_ITOBHV(ip
));
3850 spin_unlock(&ip
->i_flags_lock
);
3851 list_add_tail(&ip
->i_reclaim
, &mp
->m_del_inodes
);
3852 XFS_MOUNT_IUNLOCK(mp
);
3863 xfs_ihash_t
*ih
= ip
->i_hash
;
3864 bhv_vnode_t
*vp
= XFS_ITOV_NULL(ip
);
3867 if (vp
&& VN_BAD(vp
))
3870 /* The hash lock here protects a thread in xfs_iget_core from
3871 * racing with us on linking the inode back with a vnode.
3872 * Once we have the XFS_IRECLAIM flag set it will not touch
3875 write_lock(&ih
->ih_lock
);
3876 spin_lock(&ip
->i_flags_lock
);
3877 if (__xfs_iflags_test(ip
, XFS_IRECLAIM
) ||
3878 (!__xfs_iflags_test(ip
, XFS_IRECLAIMABLE
) && vp
== NULL
)) {
3879 spin_unlock(&ip
->i_flags_lock
);
3880 write_unlock(&ih
->ih_lock
);
3883 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
3887 __xfs_iflags_set(ip
, XFS_IRECLAIM
);
3888 spin_unlock(&ip
->i_flags_lock
);
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
, &committed
);
4150 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
);
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_t(uint
, 1 << mp
->m_sb
.sb_blocklog
, NBPP
);
4334 ilen
= len
+ (offset
& (rounding
- 1));
4335 ioffset
= offset
& ~(rounding
- 1);
4336 if (ilen
& (rounding
- 1))
4337 ilen
= (ilen
+ rounding
) & ~(rounding
- 1);
4339 if (VN_CACHED(vp
) != 0) {
4340 xfs_inval_cached_trace(&ip
->i_iocore
, ioffset
, -1,
4341 ctooff(offtoct(ioffset
)), -1);
4342 bhv_vop_flushinval_pages(vp
, ctooff(offtoct(ioffset
)),
4343 -1, FI_REMAPF_LOCKED
);
4347 * Need to zero the stuff we're not freeing, on disk.
4348 * If its a realtime file & can't use unwritten extents then we
4349 * actually need to zero the extent edges. Otherwise xfs_bunmapi
4350 * will take care of it for us.
4352 if (rt
&& !XFS_SB_VERSION_HASEXTFLGBIT(&mp
->m_sb
)) {
4354 error
= XFS_BMAPI(mp
, NULL
, &ip
->i_iocore
, startoffset_fsb
,
4355 1, 0, NULL
, 0, &imap
, &nimap
, NULL
, NULL
);
4357 goto out_unlock_iolock
;
4358 ASSERT(nimap
== 0 || nimap
== 1);
4359 if (nimap
&& imap
.br_startblock
!= HOLESTARTBLOCK
) {
4362 ASSERT(imap
.br_startblock
!= DELAYSTARTBLOCK
);
4363 block
= imap
.br_startblock
;
4364 mod
= do_div(block
, mp
->m_sb
.sb_rextsize
);
4366 startoffset_fsb
+= mp
->m_sb
.sb_rextsize
- mod
;
4369 error
= XFS_BMAPI(mp
, NULL
, &ip
->i_iocore
, endoffset_fsb
- 1,
4370 1, 0, NULL
, 0, &imap
, &nimap
, NULL
, NULL
);
4372 goto out_unlock_iolock
;
4373 ASSERT(nimap
== 0 || nimap
== 1);
4374 if (nimap
&& imap
.br_startblock
!= HOLESTARTBLOCK
) {
4375 ASSERT(imap
.br_startblock
!= DELAYSTARTBLOCK
);
4377 if (mod
&& (mod
!= mp
->m_sb
.sb_rextsize
))
4378 endoffset_fsb
-= mod
;
4381 if ((done
= (endoffset_fsb
<= startoffset_fsb
)))
4383 * One contiguous piece to clear
4385 error
= xfs_zero_remaining_bytes(ip
, offset
, offset
+ len
- 1);
4388 * Some full blocks, possibly two pieces to clear
4390 if (offset
< XFS_FSB_TO_B(mp
, startoffset_fsb
))
4391 error
= xfs_zero_remaining_bytes(ip
, offset
,
4392 XFS_FSB_TO_B(mp
, startoffset_fsb
) - 1);
4394 XFS_FSB_TO_B(mp
, endoffset_fsb
) < offset
+ len
)
4395 error
= xfs_zero_remaining_bytes(ip
,
4396 XFS_FSB_TO_B(mp
, endoffset_fsb
),
4401 * free file space until done or until there is an error
4403 resblks
= XFS_DIOSTRAT_SPACE_RES(mp
, 0);
4404 while (!error
&& !done
) {
4407 * allocate and setup the transaction
4409 tp
= xfs_trans_alloc(mp
, XFS_TRANS_DIOSTRAT
);
4410 error
= xfs_trans_reserve(tp
,
4412 XFS_WRITE_LOG_RES(mp
),
4414 XFS_TRANS_PERM_LOG_RES
,
4415 XFS_WRITE_LOG_COUNT
);
4418 * check for running out of space
4422 * Free the transaction structure.
4424 ASSERT(error
== ENOSPC
|| XFS_FORCED_SHUTDOWN(mp
));
4425 xfs_trans_cancel(tp
, 0);
4428 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
4429 error
= XFS_TRANS_RESERVE_QUOTA(mp
, tp
,
4430 ip
->i_udquot
, ip
->i_gdquot
, resblks
, 0,
4431 XFS_QMOPT_RES_REGBLKS
);
4435 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
);
4436 xfs_trans_ihold(tp
, ip
);
4439 * issue the bunmapi() call to free the blocks
4441 XFS_BMAP_INIT(&free_list
, &firstfsb
);
4442 error
= XFS_BUNMAPI(mp
, tp
, &ip
->i_iocore
, startoffset_fsb
,
4443 endoffset_fsb
- startoffset_fsb
,
4444 0, 2, &firstfsb
, &free_list
, NULL
, &done
);
4450 * complete the transaction
4452 error
= xfs_bmap_finish(&tp
, &free_list
, &committed
);
4457 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
);
4458 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
4463 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
4467 xfs_bmap_cancel(&free_list
);
4469 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
| XFS_TRANS_ABORT
);
4470 xfs_iunlock(ip
, need_iolock
? (XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
) :
4476 * xfs_change_file_space()
4477 * This routine allocates or frees disk space for the given file.
4478 * The user specified parameters are checked for alignment and size
4487 xfs_change_file_space(
4501 xfs_off_t startoffset
;
4507 vp
= BHV_TO_VNODE(bdp
);
4508 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
4510 ip
= XFS_BHVTOI(bdp
);
4514 * must be a regular file and have write permission
4517 return XFS_ERROR(EINVAL
);
4519 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
4521 if ((error
= xfs_iaccess(ip
, S_IWUSR
, credp
))) {
4522 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
4526 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
4528 switch (bf
->l_whence
) {
4529 case 0: /*SEEK_SET*/
4531 case 1: /*SEEK_CUR*/
4532 bf
->l_start
+= offset
;
4534 case 2: /*SEEK_END*/
4535 bf
->l_start
+= ip
->i_d
.di_size
;
4538 return XFS_ERROR(EINVAL
);
4541 llen
= bf
->l_len
> 0 ? bf
->l_len
- 1 : bf
->l_len
;
4543 if ( (bf
->l_start
< 0)
4544 || (bf
->l_start
> XFS_MAXIOFFSET(mp
))
4545 || (bf
->l_start
+ llen
< 0)
4546 || (bf
->l_start
+ llen
> XFS_MAXIOFFSET(mp
)))
4547 return XFS_ERROR(EINVAL
);
4551 startoffset
= bf
->l_start
;
4552 fsize
= ip
->i_d
.di_size
;
4555 * XFS_IOC_RESVSP and XFS_IOC_UNRESVSP will reserve or unreserve
4557 * These calls do NOT zero the data space allocated to the file,
4558 * nor do they change the file size.
4560 * XFS_IOC_ALLOCSP and XFS_IOC_FREESP will allocate and free file
4562 * These calls cause the new file data to be zeroed and the file
4563 * size to be changed.
4565 setprealloc
= clrprealloc
= 0;
4568 case XFS_IOC_RESVSP
:
4569 case XFS_IOC_RESVSP64
:
4570 error
= xfs_alloc_file_space(ip
, startoffset
, bf
->l_len
,
4577 case XFS_IOC_UNRESVSP
:
4578 case XFS_IOC_UNRESVSP64
:
4579 if ((error
= xfs_free_file_space(ip
, startoffset
, bf
->l_len
,
4584 case XFS_IOC_ALLOCSP
:
4585 case XFS_IOC_ALLOCSP64
:
4586 case XFS_IOC_FREESP
:
4587 case XFS_IOC_FREESP64
:
4588 if (startoffset
> fsize
) {
4589 error
= xfs_alloc_file_space(ip
, fsize
,
4590 startoffset
- fsize
, 0, attr_flags
);
4595 va
.va_mask
= XFS_AT_SIZE
;
4596 va
.va_size
= startoffset
;
4598 error
= xfs_setattr(bdp
, &va
, attr_flags
, credp
);
4608 return XFS_ERROR(EINVAL
);
4612 * update the inode timestamp, mode, and prealloc flag bits
4614 tp
= xfs_trans_alloc(mp
, XFS_TRANS_WRITEID
);
4616 if ((error
= xfs_trans_reserve(tp
, 0, XFS_WRITEID_LOG_RES(mp
),
4619 xfs_trans_cancel(tp
, 0);
4623 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
4625 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
);
4626 xfs_trans_ihold(tp
, ip
);
4628 if ((attr_flags
& ATTR_DMI
) == 0) {
4629 ip
->i_d
.di_mode
&= ~S_ISUID
;
4632 * Note that we don't have to worry about mandatory
4633 * file locking being disabled here because we only
4634 * clear the S_ISGID bit if the Group execute bit is
4635 * on, but if it was on then mandatory locking wouldn't
4636 * have been enabled.
4638 if (ip
->i_d
.di_mode
& S_IXGRP
)
4639 ip
->i_d
.di_mode
&= ~S_ISGID
;
4641 xfs_ichgtime(ip
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
4644 ip
->i_d
.di_flags
|= XFS_DIFLAG_PREALLOC
;
4645 else if (clrprealloc
)
4646 ip
->i_d
.di_flags
&= ~XFS_DIFLAG_PREALLOC
;
4648 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
4649 xfs_trans_set_sync(tp
);
4651 error
= xfs_trans_commit(tp
, 0);
4653 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
4658 bhv_vnodeops_t xfs_vnodeops
= {
4659 BHV_IDENTITY_INIT(VN_BHV_XFS
,VNODE_POSITION_XFS
),
4660 .vop_open
= xfs_open
,
4661 .vop_close
= xfs_close
,
4662 .vop_read
= xfs_read
,
4663 #ifdef HAVE_SENDFILE
4664 .vop_sendfile
= xfs_sendfile
,
4667 .vop_splice_read
= xfs_splice_read
,
4668 .vop_splice_write
= xfs_splice_write
,
4670 .vop_write
= xfs_write
,
4671 .vop_ioctl
= xfs_ioctl
,
4672 .vop_getattr
= xfs_getattr
,
4673 .vop_setattr
= xfs_setattr
,
4674 .vop_access
= xfs_access
,
4675 .vop_lookup
= xfs_lookup
,
4676 .vop_create
= xfs_create
,
4677 .vop_remove
= xfs_remove
,
4678 .vop_link
= xfs_link
,
4679 .vop_rename
= xfs_rename
,
4680 .vop_mkdir
= xfs_mkdir
,
4681 .vop_rmdir
= xfs_rmdir
,
4682 .vop_readdir
= xfs_readdir
,
4683 .vop_symlink
= xfs_symlink
,
4684 .vop_readlink
= xfs_readlink
,
4685 .vop_fsync
= xfs_fsync
,
4686 .vop_inactive
= xfs_inactive
,
4687 .vop_fid2
= xfs_fid2
,
4688 .vop_rwlock
= xfs_rwlock
,
4689 .vop_rwunlock
= xfs_rwunlock
,
4690 .vop_bmap
= xfs_bmap
,
4691 .vop_reclaim
= xfs_reclaim
,
4692 .vop_attr_get
= xfs_attr_get
,
4693 .vop_attr_set
= xfs_attr_set
,
4694 .vop_attr_remove
= xfs_attr_remove
,
4695 .vop_attr_list
= xfs_attr_list
,
4696 .vop_link_removed
= (vop_link_removed_t
)fs_noval
,
4697 .vop_vnode_change
= (vop_vnode_change_t
)fs_noval
,
4698 .vop_tosspages
= fs_tosspages
,
4699 .vop_flushinval_pages
= fs_flushinval_pages
,
4700 .vop_flush_pages
= fs_flush_pages
,
4701 .vop_release
= xfs_release
,
4702 .vop_iflush
= xfs_inode_flush
,