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"
62 bhv_vnode_t
*vp
= BHV_TO_VNODE(bdp
);
63 xfs_inode_t
*ip
= XFS_BHVTOI(bdp
);
65 if (XFS_FORCED_SHUTDOWN(ip
->i_mount
))
66 return XFS_ERROR(EIO
);
69 * If it's a directory with any blocks, read-ahead block 0
70 * as we're almost certain to have the next operation be a read there.
72 if (VN_ISDIR(vp
) && ip
->i_d
.di_nextents
> 0) {
73 mode
= xfs_ilock_map_shared(ip
);
74 if (ip
->i_d
.di_nextents
> 0)
75 (void)xfs_da_reada_buf(NULL
, ip
, 0, XFS_DATA_FORK
);
76 xfs_iunlock(ip
, mode
);
85 lastclose_t lastclose
,
88 bhv_vnode_t
*vp
= BHV_TO_VNODE(bdp
);
89 xfs_inode_t
*ip
= XFS_BHVTOI(bdp
);
91 if (XFS_FORCED_SHUTDOWN(ip
->i_mount
))
92 return XFS_ERROR(EIO
);
94 if (lastclose
!= L_TRUE
|| !VN_ISREG(vp
))
98 * If we previously truncated this file and removed old data in
99 * the process, we want to initiate "early" writeout on the last
100 * close. This is an attempt to combat the notorious NULL files
101 * problem which is particularly noticable from a truncate down,
102 * buffered (re-)write (delalloc), followed by a crash. What we
103 * are effectively doing here is significantly reducing the time
104 * window where we'd otherwise be exposed to that problem.
106 if (VUNTRUNCATE(vp
) && VN_DIRTY(vp
) && ip
->i_delayed_blks
> 0)
107 return bhv_vop_flush_pages(vp
, 0, -1, XFS_B_ASYNC
, FI_NONE
);
125 vp
= BHV_TO_VNODE(bdp
);
126 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
128 ip
= XFS_BHVTOI(bdp
);
131 if (XFS_FORCED_SHUTDOWN(mp
))
132 return XFS_ERROR(EIO
);
134 if (!(flags
& ATTR_LAZY
))
135 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
137 vap
->va_size
= ip
->i_d
.di_size
;
138 if (vap
->va_mask
== XFS_AT_SIZE
)
142 XFS_FSB_TO_BB(mp
, ip
->i_d
.di_nblocks
+ ip
->i_delayed_blks
);
143 vap
->va_nodeid
= ip
->i_ino
;
145 vap
->va_nodeid
+= mp
->m_inoadd
;
147 vap
->va_nlink
= ip
->i_d
.di_nlink
;
150 * Quick exit for non-stat callers
153 ~(XFS_AT_SIZE
|XFS_AT_FSID
|XFS_AT_NODEID
|
154 XFS_AT_NLINK
|XFS_AT_BLKSIZE
)) == 0)
158 * Copy from in-core inode.
160 vap
->va_mode
= ip
->i_d
.di_mode
;
161 vap
->va_uid
= ip
->i_d
.di_uid
;
162 vap
->va_gid
= ip
->i_d
.di_gid
;
163 vap
->va_projid
= ip
->i_d
.di_projid
;
166 * Check vnode type block/char vs. everything else.
168 switch (ip
->i_d
.di_mode
& S_IFMT
) {
171 vap
->va_rdev
= ip
->i_df
.if_u2
.if_rdev
;
172 vap
->va_blocksize
= BLKDEV_IOSIZE
;
177 if (!(ip
->i_d
.di_flags
& XFS_DIFLAG_REALTIME
)) {
178 vap
->va_blocksize
= xfs_preferred_iosize(mp
);
182 * If the file blocks are being allocated from a
183 * realtime partition, then return the inode's
184 * realtime extent size or the realtime volume's
187 vap
->va_blocksize
= ip
->i_d
.di_extsize
?
188 (ip
->i_d
.di_extsize
<< mp
->m_sb
.sb_blocklog
) :
189 (mp
->m_sb
.sb_rextsize
<< mp
->m_sb
.sb_blocklog
);
194 vn_atime_to_timespec(vp
, &vap
->va_atime
);
195 vap
->va_mtime
.tv_sec
= ip
->i_d
.di_mtime
.t_sec
;
196 vap
->va_mtime
.tv_nsec
= ip
->i_d
.di_mtime
.t_nsec
;
197 vap
->va_ctime
.tv_sec
= ip
->i_d
.di_ctime
.t_sec
;
198 vap
->va_ctime
.tv_nsec
= ip
->i_d
.di_ctime
.t_nsec
;
201 * Exit for stat callers. See if any of the rest of the fields
202 * to be filled in are needed.
205 (XFS_AT_XFLAGS
|XFS_AT_EXTSIZE
|XFS_AT_NEXTENTS
|XFS_AT_ANEXTENTS
|
206 XFS_AT_GENCOUNT
|XFS_AT_VCODE
)) == 0)
210 * Convert di_flags to xflags.
212 vap
->va_xflags
= xfs_ip2xflags(ip
);
215 * Exit for inode revalidate. See if any of the rest of
216 * the fields to be filled in are needed.
219 (XFS_AT_EXTSIZE
|XFS_AT_NEXTENTS
|XFS_AT_ANEXTENTS
|
220 XFS_AT_GENCOUNT
|XFS_AT_VCODE
)) == 0)
223 vap
->va_extsize
= ip
->i_d
.di_extsize
<< mp
->m_sb
.sb_blocklog
;
225 (ip
->i_df
.if_flags
& XFS_IFEXTENTS
) ?
226 ip
->i_df
.if_bytes
/ sizeof(xfs_bmbt_rec_t
) :
230 (ip
->i_afp
->if_flags
& XFS_IFEXTENTS
) ?
231 ip
->i_afp
->if_bytes
/ sizeof(xfs_bmbt_rec_t
) :
232 ip
->i_d
.di_anextents
;
234 vap
->va_anextents
= 0;
235 vap
->va_gen
= ip
->i_d
.di_gen
;
238 if (!(flags
& ATTR_LAZY
))
239 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
265 xfs_prid_t projid
=0, iprojid
=0;
266 int mandlock_before
, mandlock_after
;
267 struct xfs_dquot
*udqp
, *gdqp
, *olddquot1
, *olddquot2
;
271 vp
= BHV_TO_VNODE(bdp
);
272 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
274 if (vp
->v_vfsp
->vfs_flag
& VFS_RDONLY
)
275 return XFS_ERROR(EROFS
);
278 * Cannot set certain attributes.
281 if (mask
& XFS_AT_NOSET
) {
282 return XFS_ERROR(EINVAL
);
285 ip
= XFS_BHVTOI(bdp
);
288 if (XFS_FORCED_SHUTDOWN(mp
))
289 return XFS_ERROR(EIO
);
292 * Timestamps do not need to be logged and hence do not
293 * need to be done within a transaction.
295 if (mask
& XFS_AT_UPDTIMES
) {
296 ASSERT((mask
& ~XFS_AT_UPDTIMES
) == 0);
297 timeflags
= ((mask
& XFS_AT_UPDATIME
) ? XFS_ICHGTIME_ACC
: 0) |
298 ((mask
& XFS_AT_UPDCTIME
) ? XFS_ICHGTIME_CHG
: 0) |
299 ((mask
& XFS_AT_UPDMTIME
) ? XFS_ICHGTIME_MOD
: 0);
300 xfs_ichgtime(ip
, timeflags
);
304 olddquot1
= olddquot2
= NULL
;
308 * If disk quotas is on, we make sure that the dquots do exist on disk,
309 * before we start any other transactions. Trying to do this later
310 * is messy. We don't care to take a readlock to look at the ids
311 * in inode here, because we can't hold it across the trans_reserve.
312 * If the IDs do change before we take the ilock, we're covered
313 * because the i_*dquot fields will get updated anyway.
315 if (XFS_IS_QUOTA_ON(mp
) &&
316 (mask
& (XFS_AT_UID
|XFS_AT_GID
|XFS_AT_PROJID
))) {
319 if ((mask
& XFS_AT_UID
) && XFS_IS_UQUOTA_ON(mp
)) {
321 qflags
|= XFS_QMOPT_UQUOTA
;
323 uid
= ip
->i_d
.di_uid
;
325 if ((mask
& XFS_AT_GID
) && XFS_IS_GQUOTA_ON(mp
)) {
327 qflags
|= XFS_QMOPT_GQUOTA
;
329 gid
= ip
->i_d
.di_gid
;
331 if ((mask
& XFS_AT_PROJID
) && XFS_IS_PQUOTA_ON(mp
)) {
332 projid
= vap
->va_projid
;
333 qflags
|= XFS_QMOPT_PQUOTA
;
335 projid
= ip
->i_d
.di_projid
;
338 * We take a reference when we initialize udqp and gdqp,
339 * so it is important that we never blindly double trip on
340 * the same variable. See xfs_create() for an example.
342 ASSERT(udqp
== NULL
);
343 ASSERT(gdqp
== NULL
);
344 code
= XFS_QM_DQVOPALLOC(mp
, ip
, uid
, gid
, projid
, qflags
,
351 * For the other attributes, we acquire the inode lock and
352 * first do an error checking pass.
355 lock_flags
= XFS_ILOCK_EXCL
;
356 if (flags
& ATTR_NOLOCK
)
358 if (!(mask
& XFS_AT_SIZE
)) {
359 if ((mask
!= (XFS_AT_CTIME
|XFS_AT_ATIME
|XFS_AT_MTIME
)) ||
360 (mp
->m_flags
& XFS_MOUNT_WSYNC
)) {
361 tp
= xfs_trans_alloc(mp
, XFS_TRANS_SETATTR_NOT_SIZE
);
363 if ((code
= xfs_trans_reserve(tp
, 0,
364 XFS_ICHANGE_LOG_RES(mp
), 0,
371 if (DM_EVENT_ENABLED (vp
->v_vfsp
, ip
, DM_EVENT_TRUNCATE
) &&
372 !(flags
& ATTR_DMI
)) {
373 int dmflags
= AT_DELAY_FLAG(flags
) | DM_SEM_FLAG_WR
;
374 code
= XFS_SEND_DATA(mp
, DM_EVENT_TRUNCATE
, vp
,
375 vap
->va_size
, 0, dmflags
, NULL
);
382 lock_flags
|= XFS_IOLOCK_EXCL
;
385 xfs_ilock(ip
, lock_flags
);
387 /* boolean: are we the file owner? */
388 file_owner
= (current_fsuid(credp
) == ip
->i_d
.di_uid
);
391 * Change various properties of a file.
392 * Only the owner or users with CAP_FOWNER
393 * capability may do these things.
396 (XFS_AT_MODE
|XFS_AT_XFLAGS
|XFS_AT_EXTSIZE
|XFS_AT_UID
|
397 XFS_AT_GID
|XFS_AT_PROJID
)) {
399 * CAP_FOWNER overrides the following restrictions:
401 * The user ID of the calling process must be equal
402 * to the file owner ID, except in cases where the
403 * CAP_FSETID capability is applicable.
405 if (!file_owner
&& !capable(CAP_FOWNER
)) {
406 code
= XFS_ERROR(EPERM
);
411 * CAP_FSETID overrides the following restrictions:
413 * The effective user ID of the calling process shall match
414 * the file owner when setting the set-user-ID and
415 * set-group-ID bits on that file.
417 * The effective group ID or one of the supplementary group
418 * IDs of the calling process shall match the group owner of
419 * the file when setting the set-group-ID bit on that file
421 if (mask
& XFS_AT_MODE
) {
424 if ((vap
->va_mode
& S_ISUID
) && !file_owner
)
426 if ((vap
->va_mode
& S_ISGID
) &&
427 !in_group_p((gid_t
)ip
->i_d
.di_gid
))
430 /* Linux allows this, Irix doesn't. */
431 if ((vap
->va_mode
& S_ISVTX
) && !VN_ISDIR(vp
))
434 if (m
&& !capable(CAP_FSETID
))
440 * Change file ownership. Must be the owner or privileged.
441 * If the system was configured with the "restricted_chown"
442 * option, the owner is not permitted to give away the file,
443 * and can change the group id only to a group of which he
444 * or she is a member.
446 if (mask
& (XFS_AT_UID
|XFS_AT_GID
|XFS_AT_PROJID
)) {
448 * These IDs could have changed since we last looked at them.
449 * But, we're assured that if the ownership did change
450 * while we didn't have the inode locked, inode's dquot(s)
451 * would have changed also.
453 iuid
= ip
->i_d
.di_uid
;
454 iprojid
= ip
->i_d
.di_projid
;
455 igid
= ip
->i_d
.di_gid
;
456 gid
= (mask
& XFS_AT_GID
) ? vap
->va_gid
: igid
;
457 uid
= (mask
& XFS_AT_UID
) ? vap
->va_uid
: iuid
;
458 projid
= (mask
& XFS_AT_PROJID
) ? (xfs_prid_t
)vap
->va_projid
:
462 * CAP_CHOWN overrides the following restrictions:
464 * If _POSIX_CHOWN_RESTRICTED is defined, this capability
465 * shall override the restriction that a process cannot
466 * change the user ID of a file it owns and the restriction
467 * that the group ID supplied to the chown() function
468 * shall be equal to either the group ID or one of the
469 * supplementary group IDs of the calling process.
471 if (restricted_chown
&&
472 (iuid
!= uid
|| (igid
!= gid
&&
473 !in_group_p((gid_t
)gid
))) &&
474 !capable(CAP_CHOWN
)) {
475 code
= XFS_ERROR(EPERM
);
479 * Do a quota reservation only if uid/projid/gid is actually
482 if ((XFS_IS_UQUOTA_ON(mp
) && iuid
!= uid
) ||
483 (XFS_IS_PQUOTA_ON(mp
) && iprojid
!= projid
) ||
484 (XFS_IS_GQUOTA_ON(mp
) && igid
!= gid
)) {
486 code
= XFS_QM_DQVOPCHOWNRESV(mp
, tp
, ip
, udqp
, gdqp
,
487 capable(CAP_FOWNER
) ?
488 XFS_QMOPT_FORCE_RES
: 0);
489 if (code
) /* out of quota */
495 * Truncate file. Must have write permission and not be a directory.
497 if (mask
& XFS_AT_SIZE
) {
498 /* Short circuit the truncate case for zero length files */
499 if ((vap
->va_size
== 0) &&
500 (ip
->i_d
.di_size
== 0) && (ip
->i_d
.di_nextents
== 0)) {
501 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
502 lock_flags
&= ~XFS_ILOCK_EXCL
;
503 if (mask
& XFS_AT_CTIME
)
504 xfs_ichgtime(ip
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
510 code
= XFS_ERROR(EISDIR
);
512 } else if (!VN_ISREG(vp
)) {
513 code
= XFS_ERROR(EINVAL
);
517 * Make sure that the dquots are attached to the inode.
519 if ((code
= XFS_QM_DQATTACH(mp
, ip
, XFS_QMOPT_ILOCKED
)))
524 * Change file access or modified times.
526 if (mask
& (XFS_AT_ATIME
|XFS_AT_MTIME
)) {
528 if ((flags
& ATTR_UTIME
) &&
529 !capable(CAP_FOWNER
)) {
530 code
= XFS_ERROR(EPERM
);
537 * Change extent size or realtime flag.
539 if (mask
& (XFS_AT_EXTSIZE
|XFS_AT_XFLAGS
)) {
541 * Can't change extent size if any extents are allocated.
543 if (ip
->i_d
.di_nextents
&& (mask
& XFS_AT_EXTSIZE
) &&
544 ((ip
->i_d
.di_extsize
<< mp
->m_sb
.sb_blocklog
) !=
546 code
= XFS_ERROR(EINVAL
); /* EFBIG? */
551 * Can't change realtime flag if any extents are allocated.
553 if ((ip
->i_d
.di_nextents
|| ip
->i_delayed_blks
) &&
554 (mask
& XFS_AT_XFLAGS
) &&
555 (ip
->i_d
.di_flags
& XFS_DIFLAG_REALTIME
) !=
556 (vap
->va_xflags
& XFS_XFLAG_REALTIME
)) {
557 code
= XFS_ERROR(EINVAL
); /* EFBIG? */
561 * Extent size must be a multiple of the appropriate block
562 * size, if set at all.
564 if ((mask
& XFS_AT_EXTSIZE
) && vap
->va_extsize
!= 0) {
567 if ((ip
->i_d
.di_flags
& XFS_DIFLAG_REALTIME
) ||
568 ((mask
& XFS_AT_XFLAGS
) &&
569 (vap
->va_xflags
& XFS_XFLAG_REALTIME
))) {
570 size
= mp
->m_sb
.sb_rextsize
<<
571 mp
->m_sb
.sb_blocklog
;
573 size
= mp
->m_sb
.sb_blocksize
;
575 if (vap
->va_extsize
% size
) {
576 code
= XFS_ERROR(EINVAL
);
581 * If realtime flag is set then must have realtime data.
583 if ((mask
& XFS_AT_XFLAGS
) &&
584 (vap
->va_xflags
& XFS_XFLAG_REALTIME
)) {
585 if ((mp
->m_sb
.sb_rblocks
== 0) ||
586 (mp
->m_sb
.sb_rextsize
== 0) ||
587 (ip
->i_d
.di_extsize
% mp
->m_sb
.sb_rextsize
)) {
588 code
= XFS_ERROR(EINVAL
);
594 * Can't modify an immutable/append-only file unless
595 * we have appropriate permission.
597 if ((mask
& XFS_AT_XFLAGS
) &&
599 (XFS_DIFLAG_IMMUTABLE
|XFS_DIFLAG_APPEND
) ||
601 (XFS_XFLAG_IMMUTABLE
| XFS_XFLAG_APPEND
))) &&
602 !capable(CAP_LINUX_IMMUTABLE
)) {
603 code
= XFS_ERROR(EPERM
);
609 * Now we can make the changes. Before we join the inode
610 * to the transaction, if XFS_AT_SIZE is set then take care of
611 * the part of the truncation that must be done without the
612 * inode lock. This needs to be done before joining the inode
613 * to the transaction, because the inode cannot be unlocked
614 * once it is a part of the transaction.
616 if (mask
& XFS_AT_SIZE
) {
618 if ((vap
->va_size
> ip
->i_d
.di_size
) &&
619 (flags
& ATTR_NOSIZETOK
) == 0) {
620 code
= xfs_igrow_start(ip
, vap
->va_size
, credp
);
622 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
623 vn_iowait(vp
); /* wait for the completion of any pending DIOs */
625 code
= xfs_itruncate_data(ip
, vap
->va_size
);
628 lock_flags
&= ~XFS_ILOCK_EXCL
;
629 ASSERT(lock_flags
== XFS_IOLOCK_EXCL
);
632 tp
= xfs_trans_alloc(mp
, XFS_TRANS_SETATTR_SIZE
);
633 if ((code
= xfs_trans_reserve(tp
, 0,
634 XFS_ITRUNCATE_LOG_RES(mp
), 0,
635 XFS_TRANS_PERM_LOG_RES
,
636 XFS_ITRUNCATE_LOG_COUNT
))) {
637 xfs_trans_cancel(tp
, 0);
639 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
642 commit_flags
= XFS_TRANS_RELEASE_LOG_RES
;
643 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
647 xfs_trans_ijoin(tp
, ip
, lock_flags
);
648 xfs_trans_ihold(tp
, ip
);
651 /* determine whether mandatory locking mode changes */
652 mandlock_before
= MANDLOCK(vp
, ip
->i_d
.di_mode
);
655 * Truncate file. Must have write permission and not be a directory.
657 if (mask
& XFS_AT_SIZE
) {
658 if (vap
->va_size
> ip
->i_d
.di_size
) {
659 xfs_igrow_finish(tp
, ip
, vap
->va_size
,
660 !(flags
& ATTR_DMI
));
661 } else if ((vap
->va_size
<= ip
->i_d
.di_size
) ||
662 ((vap
->va_size
== 0) && ip
->i_d
.di_nextents
)) {
664 * signal a sync transaction unless
665 * we're truncating an already unlinked
666 * file on a wsync filesystem
668 code
= xfs_itruncate_finish(&tp
, ip
,
669 (xfs_fsize_t
)vap
->va_size
,
671 ((ip
->i_d
.di_nlink
!= 0 ||
672 !(mp
->m_flags
& XFS_MOUNT_WSYNC
))
677 * Truncated "down", so we're removing references
678 * to old data here - if we now delay flushing for
679 * a long time, we expose ourselves unduly to the
680 * notorious NULL files problem. So, we mark this
681 * vnode and flush it when the file is closed, and
682 * do not wait the usual (long) time for writeout.
687 * Have to do this even if the file's size doesn't change.
689 timeflags
|= XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
;
693 * Change file access modes.
695 if (mask
& XFS_AT_MODE
) {
696 ip
->i_d
.di_mode
&= S_IFMT
;
697 ip
->i_d
.di_mode
|= vap
->va_mode
& ~S_IFMT
;
699 xfs_trans_log_inode (tp
, ip
, XFS_ILOG_CORE
);
700 timeflags
|= XFS_ICHGTIME_CHG
;
704 * Change file ownership. Must be the owner or privileged.
705 * If the system was configured with the "restricted_chown"
706 * option, the owner is not permitted to give away the file,
707 * and can change the group id only to a group of which he
708 * or she is a member.
710 if (mask
& (XFS_AT_UID
|XFS_AT_GID
|XFS_AT_PROJID
)) {
712 * CAP_FSETID overrides the following restrictions:
714 * The set-user-ID and set-group-ID bits of a file will be
715 * cleared upon successful return from chown()
717 if ((ip
->i_d
.di_mode
& (S_ISUID
|S_ISGID
)) &&
718 !capable(CAP_FSETID
)) {
719 ip
->i_d
.di_mode
&= ~(S_ISUID
|S_ISGID
);
723 * Change the ownerships and register quota modifications
724 * in the transaction.
727 if (XFS_IS_UQUOTA_ON(mp
)) {
728 ASSERT(mask
& XFS_AT_UID
);
730 olddquot1
= XFS_QM_DQVOPCHOWN(mp
, tp
, ip
,
731 &ip
->i_udquot
, udqp
);
733 ip
->i_d
.di_uid
= uid
;
736 if (XFS_IS_GQUOTA_ON(mp
)) {
737 ASSERT(!XFS_IS_PQUOTA_ON(mp
));
738 ASSERT(mask
& XFS_AT_GID
);
740 olddquot2
= XFS_QM_DQVOPCHOWN(mp
, tp
, ip
,
741 &ip
->i_gdquot
, gdqp
);
743 ip
->i_d
.di_gid
= gid
;
745 if (iprojid
!= projid
) {
746 if (XFS_IS_PQUOTA_ON(mp
)) {
747 ASSERT(!XFS_IS_GQUOTA_ON(mp
));
748 ASSERT(mask
& XFS_AT_PROJID
);
750 olddquot2
= XFS_QM_DQVOPCHOWN(mp
, tp
, ip
,
751 &ip
->i_gdquot
, gdqp
);
753 ip
->i_d
.di_projid
= projid
;
755 * We may have to rev the inode as well as
756 * the superblock version number since projids didn't
757 * exist before DINODE_VERSION_2 and SB_VERSION_NLINK.
759 if (ip
->i_d
.di_version
== XFS_DINODE_VERSION_1
)
760 xfs_bump_ino_vers2(tp
, ip
);
763 xfs_trans_log_inode (tp
, ip
, XFS_ILOG_CORE
);
764 timeflags
|= XFS_ICHGTIME_CHG
;
769 * Change file access or modified times.
771 if (mask
& (XFS_AT_ATIME
|XFS_AT_MTIME
)) {
772 if (mask
& XFS_AT_ATIME
) {
773 ip
->i_d
.di_atime
.t_sec
= vap
->va_atime
.tv_sec
;
774 ip
->i_d
.di_atime
.t_nsec
= vap
->va_atime
.tv_nsec
;
775 ip
->i_update_core
= 1;
776 timeflags
&= ~XFS_ICHGTIME_ACC
;
778 if (mask
& XFS_AT_MTIME
) {
779 ip
->i_d
.di_mtime
.t_sec
= vap
->va_mtime
.tv_sec
;
780 ip
->i_d
.di_mtime
.t_nsec
= vap
->va_mtime
.tv_nsec
;
781 timeflags
&= ~XFS_ICHGTIME_MOD
;
782 timeflags
|= XFS_ICHGTIME_CHG
;
784 if (tp
&& (flags
& ATTR_UTIME
))
785 xfs_trans_log_inode (tp
, ip
, XFS_ILOG_CORE
);
789 * Change XFS-added attributes.
791 if (mask
& (XFS_AT_EXTSIZE
|XFS_AT_XFLAGS
)) {
792 if (mask
& XFS_AT_EXTSIZE
) {
794 * Converting bytes to fs blocks.
796 ip
->i_d
.di_extsize
= vap
->va_extsize
>>
797 mp
->m_sb
.sb_blocklog
;
799 if (mask
& XFS_AT_XFLAGS
) {
802 /* can't set PREALLOC this way, just preserve it */
803 di_flags
= (ip
->i_d
.di_flags
& XFS_DIFLAG_PREALLOC
);
804 if (vap
->va_xflags
& XFS_XFLAG_IMMUTABLE
)
805 di_flags
|= XFS_DIFLAG_IMMUTABLE
;
806 if (vap
->va_xflags
& XFS_XFLAG_APPEND
)
807 di_flags
|= XFS_DIFLAG_APPEND
;
808 if (vap
->va_xflags
& XFS_XFLAG_SYNC
)
809 di_flags
|= XFS_DIFLAG_SYNC
;
810 if (vap
->va_xflags
& XFS_XFLAG_NOATIME
)
811 di_flags
|= XFS_DIFLAG_NOATIME
;
812 if (vap
->va_xflags
& XFS_XFLAG_NODUMP
)
813 di_flags
|= XFS_DIFLAG_NODUMP
;
814 if (vap
->va_xflags
& XFS_XFLAG_PROJINHERIT
)
815 di_flags
|= XFS_DIFLAG_PROJINHERIT
;
816 if (vap
->va_xflags
& XFS_XFLAG_NODEFRAG
)
817 di_flags
|= XFS_DIFLAG_NODEFRAG
;
818 if ((ip
->i_d
.di_mode
& S_IFMT
) == S_IFDIR
) {
819 if (vap
->va_xflags
& XFS_XFLAG_RTINHERIT
)
820 di_flags
|= XFS_DIFLAG_RTINHERIT
;
821 if (vap
->va_xflags
& XFS_XFLAG_NOSYMLINKS
)
822 di_flags
|= XFS_DIFLAG_NOSYMLINKS
;
823 if (vap
->va_xflags
& XFS_XFLAG_EXTSZINHERIT
)
824 di_flags
|= XFS_DIFLAG_EXTSZINHERIT
;
825 } else if ((ip
->i_d
.di_mode
& S_IFMT
) == S_IFREG
) {
826 if (vap
->va_xflags
& XFS_XFLAG_REALTIME
) {
827 di_flags
|= XFS_DIFLAG_REALTIME
;
828 ip
->i_iocore
.io_flags
|= XFS_IOCORE_RT
;
830 ip
->i_iocore
.io_flags
&= ~XFS_IOCORE_RT
;
832 if (vap
->va_xflags
& XFS_XFLAG_EXTSIZE
)
833 di_flags
|= XFS_DIFLAG_EXTSIZE
;
835 ip
->i_d
.di_flags
= di_flags
;
837 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
838 timeflags
|= XFS_ICHGTIME_CHG
;
842 * Change file inode change time only if XFS_AT_CTIME set
843 * AND we have been called by a DMI function.
846 if ( (flags
& ATTR_DMI
) && (mask
& XFS_AT_CTIME
) ) {
847 ip
->i_d
.di_ctime
.t_sec
= vap
->va_ctime
.tv_sec
;
848 ip
->i_d
.di_ctime
.t_nsec
= vap
->va_ctime
.tv_nsec
;
849 ip
->i_update_core
= 1;
850 timeflags
&= ~XFS_ICHGTIME_CHG
;
854 * Send out timestamp changes that need to be set to the
855 * current time. Not done when called by a DMI function.
857 if (timeflags
&& !(flags
& ATTR_DMI
))
858 xfs_ichgtime(ip
, timeflags
);
860 XFS_STATS_INC(xs_ig_attrchg
);
863 * If this is a synchronous mount, make sure that the
864 * transaction goes to disk before returning to the user.
865 * This is slightly sub-optimal in that truncates require
866 * two sync transactions instead of one for wsync filesystems.
867 * One for the truncate and one for the timestamps since we
868 * don't want to change the timestamps unless we're sure the
869 * truncate worked. Truncates are less than 1% of the laddis
870 * mix so this probably isn't worth the trouble to optimize.
874 if (mp
->m_flags
& XFS_MOUNT_WSYNC
)
875 xfs_trans_set_sync(tp
);
877 code
= xfs_trans_commit(tp
, commit_flags
, NULL
);
881 * If the (regular) file's mandatory locking mode changed, then
882 * notify the vnode. We do this under the inode lock to prevent
883 * racing calls to vop_vnode_change.
885 mandlock_after
= MANDLOCK(vp
, ip
->i_d
.di_mode
);
886 if (mandlock_before
!= mandlock_after
) {
887 bhv_vop_vnode_change(vp
, VCHANGE_FLAGS_ENF_LOCKING
,
891 xfs_iunlock(ip
, lock_flags
);
894 * Release any dquot(s) the inode had kept before chown.
896 XFS_QM_DQRELE(mp
, olddquot1
);
897 XFS_QM_DQRELE(mp
, olddquot2
);
898 XFS_QM_DQRELE(mp
, udqp
);
899 XFS_QM_DQRELE(mp
, gdqp
);
905 if (DM_EVENT_ENABLED(vp
->v_vfsp
, ip
, DM_EVENT_ATTRIBUTE
) &&
906 !(flags
& ATTR_DMI
)) {
907 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_ATTRIBUTE
, vp
, DM_RIGHT_NULL
,
908 NULL
, DM_RIGHT_NULL
, NULL
, NULL
,
909 0, 0, AT_DELAY_FLAG(flags
));
914 commit_flags
|= XFS_TRANS_ABORT
;
917 XFS_QM_DQRELE(mp
, udqp
);
918 XFS_QM_DQRELE(mp
, gdqp
);
920 xfs_trans_cancel(tp
, commit_flags
);
922 if (lock_flags
!= 0) {
923 xfs_iunlock(ip
, lock_flags
);
931 * Null conversion from vnode mode bits to inode mode bits, as in efs.
942 vn_trace_entry(BHV_TO_VNODE(bdp
), __FUNCTION__
,
943 (inst_t
*)__return_address
);
945 ip
= XFS_BHVTOI(bdp
);
946 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
947 error
= xfs_iaccess(ip
, mode
, credp
);
948 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
954 * The maximum pathlen is 1024 bytes. Since the minimum file system
955 * blocksize is 512 bytes, we can get a max of 2 extents back from
958 #define SYMLINK_MAPS 2
979 xfs_bmbt_irec_t mval
[SYMLINK_MAPS
];
985 vp
= BHV_TO_VNODE(bdp
);
986 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
988 ip
= XFS_BHVTOI(bdp
);
991 if (XFS_FORCED_SHUTDOWN(mp
))
992 return XFS_ERROR(EIO
);
994 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
996 ASSERT((ip
->i_d
.di_mode
& S_IFMT
) == S_IFLNK
);
998 offset
= uiop
->uio_offset
;
999 count
= uiop
->uio_resid
;
1002 error
= XFS_ERROR(EINVAL
);
1011 * See if the symlink is stored inline.
1013 pathlen
= (int)ip
->i_d
.di_size
;
1015 if (ip
->i_df
.if_flags
& XFS_IFINLINE
) {
1016 error
= uio_read(ip
->i_df
.if_u1
.if_data
, pathlen
, uiop
);
1020 * Symlink not inline. Call bmap to get it in.
1022 nmaps
= SYMLINK_MAPS
;
1024 error
= xfs_bmapi(NULL
, ip
, 0, XFS_B_TO_FSB(mp
, pathlen
),
1025 0, NULL
, 0, mval
, &nmaps
, NULL
, NULL
);
1031 for (n
= 0; n
< nmaps
; n
++) {
1032 d
= XFS_FSB_TO_DADDR(mp
, mval
[n
].br_startblock
);
1033 byte_cnt
= XFS_FSB_TO_B(mp
, mval
[n
].br_blockcount
);
1034 bp
= xfs_buf_read(mp
->m_ddev_targp
, d
,
1035 BTOBB(byte_cnt
), 0);
1036 error
= XFS_BUF_GETERROR(bp
);
1038 xfs_ioerror_alert("xfs_readlink",
1039 ip
->i_mount
, bp
, XFS_BUF_ADDR(bp
));
1043 if (pathlen
< byte_cnt
)
1045 pathlen
-= byte_cnt
;
1047 error
= uio_read(XFS_BUF_PTR(bp
), byte_cnt
, uiop
);
1054 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
1062 * This is called to sync the inode and its data out to disk.
1063 * We need to hold the I/O lock while flushing the data, and
1064 * the inode lock while flushing the inode. The inode lock CANNOT
1065 * be held while flushing the data, so acquire after we're done
1079 int log_flushed
= 0, changed
= 1;
1081 vn_trace_entry(BHV_TO_VNODE(bdp
),
1082 __FUNCTION__
, (inst_t
*)__return_address
);
1084 ip
= XFS_BHVTOI(bdp
);
1086 ASSERT(start
>= 0 && stop
>= -1);
1088 if (XFS_FORCED_SHUTDOWN(ip
->i_mount
))
1089 return XFS_ERROR(EIO
);
1092 * We always need to make sure that the required inode state
1093 * is safe on disk. The vnode might be clean but because
1094 * of committed transactions that haven't hit the disk yet.
1095 * Likewise, there could be unflushed non-transactional
1096 * changes to the inode core that have to go to disk.
1098 * The following code depends on one assumption: that
1099 * any transaction that changes an inode logs the core
1100 * because it has to change some field in the inode core
1101 * (typically nextents or nblocks). That assumption
1102 * implies that any transactions against an inode will
1103 * catch any non-transactional updates. If inode-altering
1104 * transactions exist that violate this assumption, the
1105 * code breaks. Right now, it figures that if the involved
1106 * update_* field is clear and the inode is unpinned, the
1107 * inode is clean. Either it's been flushed or it's been
1108 * committed and the commit has hit the disk unpinning the inode.
1109 * (Note that xfs_inode_item_format() called at commit clears
1110 * the update_* fields.)
1112 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
1114 /* If we are flushing data then we care about update_size
1115 * being set, otherwise we care about update_core
1117 if ((flag
& FSYNC_DATA
) ?
1118 (ip
->i_update_size
== 0) :
1119 (ip
->i_update_core
== 0)) {
1121 * Timestamps/size haven't changed since last inode
1122 * flush or inode transaction commit. That means
1123 * either nothing got written or a transaction
1124 * committed which caught the updates. If the
1125 * latter happened and the transaction hasn't
1126 * hit the disk yet, the inode will be still
1127 * be pinned. If it is, force the log.
1130 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
1132 if (xfs_ipincount(ip
)) {
1133 _xfs_log_force(ip
->i_mount
, (xfs_lsn_t
)0,
1135 ((flag
& FSYNC_WAIT
)
1136 ? XFS_LOG_SYNC
: 0),
1140 * If the inode is not pinned and nothing
1141 * has changed we don't need to flush the
1149 * Kick off a transaction to log the inode
1150 * core to get the updates. Make it
1151 * sync if FSYNC_WAIT is passed in (which
1152 * is done by everybody but specfs). The
1153 * sync transaction will also force the log.
1155 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
1156 tp
= xfs_trans_alloc(ip
->i_mount
, XFS_TRANS_FSYNC_TS
);
1157 if ((error
= xfs_trans_reserve(tp
, 0,
1158 XFS_FSYNC_TS_LOG_RES(ip
->i_mount
),
1160 xfs_trans_cancel(tp
, 0);
1163 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
1166 * Note - it's possible that we might have pushed
1167 * ourselves out of the way during trans_reserve
1168 * which would flush the inode. But there's no
1169 * guarantee that the inode buffer has actually
1170 * gone out yet (it's delwri). Plus the buffer
1171 * could be pinned anyway if it's part of an
1172 * inode in another recent transaction. So we
1173 * play it safe and fire off the transaction anyway.
1175 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
);
1176 xfs_trans_ihold(tp
, ip
);
1177 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
1178 if (flag
& FSYNC_WAIT
)
1179 xfs_trans_set_sync(tp
);
1180 error
= _xfs_trans_commit(tp
, 0, NULL
, &log_flushed
);
1182 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
1185 if ((ip
->i_mount
->m_flags
& XFS_MOUNT_BARRIER
) && changed
) {
1187 * If the log write didn't issue an ordered tag we need
1188 * to flush the disk cache for the data device now.
1191 xfs_blkdev_issue_flush(ip
->i_mount
->m_ddev_targp
);
1194 * If this inode is on the RT dev we need to flush that
1197 if (ip
->i_d
.di_flags
& XFS_DIFLAG_REALTIME
)
1198 xfs_blkdev_issue_flush(ip
->i_mount
->m_rtdev_targp
);
1205 * This is called by xfs_inactive to free any blocks beyond eof,
1206 * when the link count isn't zero.
1209 xfs_inactive_free_eofblocks(
1215 xfs_fileoff_t end_fsb
;
1216 xfs_fileoff_t last_fsb
;
1217 xfs_filblks_t map_len
;
1219 xfs_bmbt_irec_t imap
;
1222 * Figure out if there are any blocks beyond the end
1223 * of the file. If not, then there is nothing to do.
1225 end_fsb
= XFS_B_TO_FSB(mp
, ((xfs_ufsize_t
)ip
->i_d
.di_size
));
1226 last_fsb
= XFS_B_TO_FSB(mp
, (xfs_ufsize_t
)XFS_MAXIOFFSET(mp
));
1227 map_len
= last_fsb
- end_fsb
;
1232 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
1233 error
= XFS_BMAPI(mp
, NULL
, &ip
->i_iocore
, end_fsb
, map_len
, 0,
1234 NULL
, 0, &imap
, &nimaps
, NULL
, NULL
);
1235 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
1237 if (!error
&& (nimaps
!= 0) &&
1238 (imap
.br_startblock
!= HOLESTARTBLOCK
||
1239 ip
->i_delayed_blks
)) {
1241 * Attach the dquots to the inode up front.
1243 if ((error
= XFS_QM_DQATTACH(mp
, ip
, 0)))
1247 * There are blocks after the end of file.
1248 * Free them up now by truncating the file to
1251 tp
= xfs_trans_alloc(mp
, XFS_TRANS_INACTIVE
);
1254 * Do the xfs_itruncate_start() call before
1255 * reserving any log space because
1256 * itruncate_start will call into the buffer
1257 * cache and we can't
1258 * do that within a transaction.
1260 xfs_ilock(ip
, XFS_IOLOCK_EXCL
);
1261 xfs_itruncate_start(ip
, XFS_ITRUNC_DEFINITE
,
1264 error
= xfs_trans_reserve(tp
, 0,
1265 XFS_ITRUNCATE_LOG_RES(mp
),
1266 0, XFS_TRANS_PERM_LOG_RES
,
1267 XFS_ITRUNCATE_LOG_COUNT
);
1269 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1270 xfs_trans_cancel(tp
, 0);
1271 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
1275 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
1276 xfs_trans_ijoin(tp
, ip
,
1279 xfs_trans_ihold(tp
, ip
);
1281 error
= xfs_itruncate_finish(&tp
, ip
,
1286 * If we get an error at this point we
1287 * simply don't bother truncating the file.
1290 xfs_trans_cancel(tp
,
1291 (XFS_TRANS_RELEASE_LOG_RES
|
1294 error
= xfs_trans_commit(tp
,
1295 XFS_TRANS_RELEASE_LOG_RES
,
1298 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1304 * Free a symlink that has blocks associated with it.
1307 xfs_inactive_symlink_rmt(
1315 xfs_fsblock_t first_block
;
1316 xfs_bmap_free_t free_list
;
1319 xfs_bmbt_irec_t mval
[SYMLINK_MAPS
];
1327 ASSERT(ip
->i_d
.di_size
> XFS_IFORK_DSIZE(ip
));
1329 * We're freeing a symlink that has some
1330 * blocks allocated to it. Free the
1331 * blocks here. We know that we've got
1332 * either 1 or 2 extents and that we can
1333 * free them all in one bunmapi call.
1335 ASSERT(ip
->i_d
.di_nextents
> 0 && ip
->i_d
.di_nextents
<= 2);
1336 if ((error
= xfs_trans_reserve(tp
, 0, XFS_ITRUNCATE_LOG_RES(mp
), 0,
1337 XFS_TRANS_PERM_LOG_RES
, XFS_ITRUNCATE_LOG_COUNT
))) {
1338 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1339 xfs_trans_cancel(tp
, 0);
1344 * Lock the inode, fix the size, and join it to the transaction.
1345 * Hold it so in the normal path, we still have it locked for
1346 * the second transaction. In the error paths we need it
1347 * held so the cancel won't rele it, see below.
1349 xfs_ilock(ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1350 size
= (int)ip
->i_d
.di_size
;
1351 ip
->i_d
.di_size
= 0;
1352 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
1353 xfs_trans_ihold(tp
, ip
);
1354 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
1356 * Find the block(s) so we can inval and unmap them.
1359 XFS_BMAP_INIT(&free_list
, &first_block
);
1360 nmaps
= ARRAY_SIZE(mval
);
1361 if ((error
= xfs_bmapi(tp
, ip
, 0, XFS_B_TO_FSB(mp
, size
),
1362 XFS_BMAPI_METADATA
, &first_block
, 0, mval
, &nmaps
,
1366 * Invalidate the block(s).
1368 for (i
= 0; i
< nmaps
; i
++) {
1369 bp
= xfs_trans_get_buf(tp
, mp
->m_ddev_targp
,
1370 XFS_FSB_TO_DADDR(mp
, mval
[i
].br_startblock
),
1371 XFS_FSB_TO_BB(mp
, mval
[i
].br_blockcount
), 0);
1372 xfs_trans_binval(tp
, bp
);
1375 * Unmap the dead block(s) to the free_list.
1377 if ((error
= xfs_bunmapi(tp
, ip
, 0, size
, XFS_BMAPI_METADATA
, nmaps
,
1378 &first_block
, &free_list
, NULL
, &done
)))
1382 * Commit the first transaction. This logs the EFI and the inode.
1384 if ((error
= xfs_bmap_finish(&tp
, &free_list
, first_block
, &committed
)))
1387 * The transaction must have been committed, since there were
1388 * actually extents freed by xfs_bunmapi. See xfs_bmap_finish.
1389 * The new tp has the extent freeing and EFDs.
1393 * The first xact was committed, so add the inode to the new one.
1394 * Mark it dirty so it will be logged and moved forward in the log as
1395 * part of every commit.
1397 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
1398 xfs_trans_ihold(tp
, ip
);
1399 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
1401 * Get a new, empty transaction to return to our caller.
1403 ntp
= xfs_trans_dup(tp
);
1405 * Commit the transaction containing extent freeing and EFDs.
1406 * If we get an error on the commit here or on the reserve below,
1407 * we need to unlock the inode since the new transaction doesn't
1408 * have the inode attached.
1410 error
= xfs_trans_commit(tp
, 0, NULL
);
1413 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1417 * Remove the memory for extent descriptions (just bookkeeping).
1419 if (ip
->i_df
.if_bytes
)
1420 xfs_idata_realloc(ip
, -ip
->i_df
.if_bytes
, XFS_DATA_FORK
);
1421 ASSERT(ip
->i_df
.if_bytes
== 0);
1423 * Put an itruncate log reservation in the new transaction
1426 if ((error
= xfs_trans_reserve(tp
, 0, XFS_ITRUNCATE_LOG_RES(mp
), 0,
1427 XFS_TRANS_PERM_LOG_RES
, XFS_ITRUNCATE_LOG_COUNT
))) {
1428 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1432 * Return with the inode locked but not joined to the transaction.
1438 xfs_bmap_cancel(&free_list
);
1441 * Have to come here with the inode locked and either
1442 * (held and in the transaction) or (not in the transaction).
1443 * If the inode isn't held then cancel would iput it, but
1444 * that's wrong since this is inactive and the vnode ref
1445 * count is 0 already.
1446 * Cancel won't do anything to the inode if held, but it still
1447 * needs to be locked until the cancel is done, if it was
1448 * joined to the transaction.
1450 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
| XFS_TRANS_ABORT
);
1451 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1458 xfs_inactive_symlink_local(
1464 ASSERT(ip
->i_d
.di_size
<= XFS_IFORK_DSIZE(ip
));
1466 * We're freeing a symlink which fit into
1467 * the inode. Just free the memory used
1468 * to hold the old symlink.
1470 error
= xfs_trans_reserve(*tpp
, 0,
1471 XFS_ITRUNCATE_LOG_RES(ip
->i_mount
),
1472 0, XFS_TRANS_PERM_LOG_RES
,
1473 XFS_ITRUNCATE_LOG_COUNT
);
1476 xfs_trans_cancel(*tpp
, 0);
1480 xfs_ilock(ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
1483 * Zero length symlinks _can_ exist.
1485 if (ip
->i_df
.if_bytes
> 0) {
1486 xfs_idata_realloc(ip
,
1487 -(ip
->i_df
.if_bytes
),
1489 ASSERT(ip
->i_df
.if_bytes
== 0);
1503 ASSERT(ismrlocked(&ip
->i_iolock
, MR_UPDATE
));
1506 ASSERT(ip
->i_d
.di_forkoff
!= 0);
1507 xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
1508 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
1510 error
= xfs_attr_inactive(ip
);
1513 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
1514 return error
; /* goto out */
1517 tp
= xfs_trans_alloc(mp
, XFS_TRANS_INACTIVE
);
1518 error
= xfs_trans_reserve(tp
, 0,
1519 XFS_IFREE_LOG_RES(mp
),
1520 0, XFS_TRANS_PERM_LOG_RES
,
1521 XFS_INACTIVE_LOG_COUNT
);
1523 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1524 xfs_trans_cancel(tp
, 0);
1526 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
1530 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
1531 xfs_trans_ijoin(tp
, ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1532 xfs_trans_ihold(tp
, ip
);
1533 xfs_idestroy_fork(ip
, XFS_ATTR_FORK
);
1535 ASSERT(ip
->i_d
.di_anextents
== 0);
1550 vp
= BHV_TO_VNODE(bdp
);
1551 ip
= XFS_BHVTOI(bdp
);
1554 if (!VN_ISREG(vp
) || (ip
->i_d
.di_mode
== 0))
1557 /* If this is a read-only mount, don't do this (would generate I/O) */
1558 if (vp
->v_vfsp
->vfs_flag
& VFS_RDONLY
)
1561 #ifdef HAVE_REFCACHE
1562 /* If we are in the NFS reference cache then don't do this now */
1567 if (ip
->i_d
.di_nlink
!= 0) {
1568 if ((((ip
->i_d
.di_mode
& S_IFMT
) == S_IFREG
) &&
1569 ((ip
->i_d
.di_size
> 0) || (VN_CACHED(vp
) > 0 ||
1570 ip
->i_delayed_blks
> 0)) &&
1571 (ip
->i_df
.if_flags
& XFS_IFEXTENTS
)) &&
1572 (!(ip
->i_d
.di_flags
&
1573 (XFS_DIFLAG_PREALLOC
| XFS_DIFLAG_APPEND
)))) {
1574 if ((error
= xfs_inactive_free_eofblocks(mp
, ip
)))
1576 /* Update linux inode block count after free above */
1577 vn_to_inode(vp
)->i_blocks
= XFS_FSB_TO_BB(mp
,
1578 ip
->i_d
.di_nblocks
+ ip
->i_delayed_blks
);
1588 * This is called when the vnode reference count for the vnode
1589 * goes to zero. If the file has been unlinked, then it must
1590 * now be truncated. Also, we clear all of the read-ahead state
1591 * kept for the inode here since the file is now closed.
1600 xfs_bmap_free_t free_list
;
1601 xfs_fsblock_t first_block
;
1608 vp
= BHV_TO_VNODE(bdp
);
1609 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
1611 ip
= XFS_BHVTOI(bdp
);
1614 * If the inode is already free, then there can be nothing
1617 if (ip
->i_d
.di_mode
== 0 || VN_BAD(vp
)) {
1618 ASSERT(ip
->i_df
.if_real_bytes
== 0);
1619 ASSERT(ip
->i_df
.if_broot_bytes
== 0);
1620 return VN_INACTIVE_CACHE
;
1624 * Only do a truncate if it's a regular file with
1625 * some actual space in it. It's OK to look at the
1626 * inode's fields without the lock because we're the
1627 * only one with a reference to the inode.
1629 truncate
= ((ip
->i_d
.di_nlink
== 0) &&
1630 ((ip
->i_d
.di_size
!= 0) || (ip
->i_d
.di_nextents
> 0) ||
1631 (ip
->i_delayed_blks
> 0)) &&
1632 ((ip
->i_d
.di_mode
& S_IFMT
) == S_IFREG
));
1636 if (ip
->i_d
.di_nlink
== 0 &&
1637 DM_EVENT_ENABLED(vp
->v_vfsp
, ip
, DM_EVENT_DESTROY
)) {
1638 (void) XFS_SEND_DESTROY(mp
, vp
, DM_RIGHT_NULL
);
1643 /* If this is a read-only mount, don't do this (would generate I/O) */
1644 if (vp
->v_vfsp
->vfs_flag
& VFS_RDONLY
)
1647 if (ip
->i_d
.di_nlink
!= 0) {
1648 if ((((ip
->i_d
.di_mode
& S_IFMT
) == S_IFREG
) &&
1649 ((ip
->i_d
.di_size
> 0) || (VN_CACHED(vp
) > 0 ||
1650 ip
->i_delayed_blks
> 0)) &&
1651 (ip
->i_df
.if_flags
& XFS_IFEXTENTS
) &&
1652 (!(ip
->i_d
.di_flags
&
1653 (XFS_DIFLAG_PREALLOC
| XFS_DIFLAG_APPEND
)) ||
1654 (ip
->i_delayed_blks
!= 0)))) {
1655 if ((error
= xfs_inactive_free_eofblocks(mp
, ip
)))
1656 return VN_INACTIVE_CACHE
;
1657 /* Update linux inode block count after free above */
1658 vn_to_inode(vp
)->i_blocks
= XFS_FSB_TO_BB(mp
,
1659 ip
->i_d
.di_nblocks
+ ip
->i_delayed_blks
);
1664 ASSERT(ip
->i_d
.di_nlink
== 0);
1666 if ((error
= XFS_QM_DQATTACH(mp
, ip
, 0)))
1667 return VN_INACTIVE_CACHE
;
1669 tp
= xfs_trans_alloc(mp
, XFS_TRANS_INACTIVE
);
1672 * Do the xfs_itruncate_start() call before
1673 * reserving any log space because itruncate_start
1674 * will call into the buffer cache and we can't
1675 * do that within a transaction.
1677 xfs_ilock(ip
, XFS_IOLOCK_EXCL
);
1679 xfs_itruncate_start(ip
, XFS_ITRUNC_DEFINITE
, 0);
1681 error
= xfs_trans_reserve(tp
, 0,
1682 XFS_ITRUNCATE_LOG_RES(mp
),
1683 0, XFS_TRANS_PERM_LOG_RES
,
1684 XFS_ITRUNCATE_LOG_COUNT
);
1686 /* Don't call itruncate_cleanup */
1687 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1688 xfs_trans_cancel(tp
, 0);
1689 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
1690 return VN_INACTIVE_CACHE
;
1693 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
1694 xfs_trans_ijoin(tp
, ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1695 xfs_trans_ihold(tp
, ip
);
1698 * normally, we have to run xfs_itruncate_finish sync.
1699 * But if filesystem is wsync and we're in the inactive
1700 * path, then we know that nlink == 0, and that the
1701 * xaction that made nlink == 0 is permanently committed
1702 * since xfs_remove runs as a synchronous transaction.
1704 error
= xfs_itruncate_finish(&tp
, ip
, 0, XFS_DATA_FORK
,
1705 (!(mp
->m_flags
& XFS_MOUNT_WSYNC
) ? 1 : 0));
1708 xfs_trans_cancel(tp
,
1709 XFS_TRANS_RELEASE_LOG_RES
| XFS_TRANS_ABORT
);
1710 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1711 return VN_INACTIVE_CACHE
;
1713 } else if ((ip
->i_d
.di_mode
& S_IFMT
) == S_IFLNK
) {
1716 * If we get an error while cleaning up a
1717 * symlink we bail out.
1719 error
= (ip
->i_d
.di_size
> XFS_IFORK_DSIZE(ip
)) ?
1720 xfs_inactive_symlink_rmt(ip
, &tp
) :
1721 xfs_inactive_symlink_local(ip
, &tp
);
1725 return VN_INACTIVE_CACHE
;
1728 xfs_trans_ijoin(tp
, ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1729 xfs_trans_ihold(tp
, ip
);
1731 error
= xfs_trans_reserve(tp
, 0,
1732 XFS_IFREE_LOG_RES(mp
),
1733 0, XFS_TRANS_PERM_LOG_RES
,
1734 XFS_INACTIVE_LOG_COUNT
);
1736 ASSERT(XFS_FORCED_SHUTDOWN(mp
));
1737 xfs_trans_cancel(tp
, 0);
1738 return VN_INACTIVE_CACHE
;
1741 xfs_ilock(ip
, XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
);
1742 xfs_trans_ijoin(tp
, ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1743 xfs_trans_ihold(tp
, ip
);
1747 * If there are attributes associated with the file
1748 * then blow them away now. The code calls a routine
1749 * that recursively deconstructs the attribute fork.
1750 * We need to just commit the current transaction
1751 * because we can't use it for xfs_attr_inactive().
1753 if (ip
->i_d
.di_anextents
> 0) {
1754 error
= xfs_inactive_attrs(ip
, &tp
);
1756 * If we got an error, the transaction is already
1757 * cancelled, and the inode is unlocked. Just get out.
1760 return VN_INACTIVE_CACHE
;
1761 } else if (ip
->i_afp
) {
1762 xfs_idestroy_fork(ip
, XFS_ATTR_FORK
);
1768 XFS_BMAP_INIT(&free_list
, &first_block
);
1769 error
= xfs_ifree(tp
, ip
, &free_list
);
1772 * If we fail to free the inode, shut down. The cancel
1773 * might do that, we need to make sure. Otherwise the
1774 * inode might be lost for a long time or forever.
1776 if (!XFS_FORCED_SHUTDOWN(mp
)) {
1778 "xfs_inactive: xfs_ifree() returned an error = %d on %s",
1779 error
, mp
->m_fsname
);
1780 xfs_force_shutdown(mp
, SHUTDOWN_META_IO_ERROR
);
1782 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
|XFS_TRANS_ABORT
);
1785 * Credit the quota account(s). The inode is gone.
1787 XFS_TRANS_MOD_DQUOT_BYINO(mp
, tp
, ip
, XFS_TRANS_DQ_ICOUNT
, -1);
1790 * Just ignore errors at this point. There is
1791 * nothing we can do except to try to keep going.
1793 (void) xfs_bmap_finish(&tp
, &free_list
, first_block
,
1795 (void) xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
1798 * Release the dquots held by inode, if any.
1800 XFS_QM_DQDETACH(mp
, ip
);
1802 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
| XFS_ILOCK_EXCL
);
1805 return VN_INACTIVE_CACHE
;
1814 bhv_desc_t
*dir_bdp
,
1815 bhv_vname_t
*dentry
,
1821 xfs_inode_t
*dp
, *ip
;
1825 bhv_vnode_t
*dir_vp
;
1827 dir_vp
= BHV_TO_VNODE(dir_bdp
);
1828 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
1830 dp
= XFS_BHVTOI(dir_bdp
);
1832 if (XFS_FORCED_SHUTDOWN(dp
->i_mount
))
1833 return XFS_ERROR(EIO
);
1835 lock_mode
= xfs_ilock_map_shared(dp
);
1836 error
= xfs_dir_lookup_int(dir_bdp
, lock_mode
, dentry
, &e_inum
, &ip
);
1838 *vpp
= XFS_ITOV(ip
);
1841 xfs_iunlock_map_shared(dp
, lock_mode
);
1847 * xfs_create (create a new file).
1851 bhv_desc_t
*dir_bdp
,
1852 bhv_vname_t
*dentry
,
1857 char *name
= VNAME(dentry
);
1858 bhv_vnode_t
*dir_vp
;
1859 xfs_inode_t
*dp
, *ip
;
1860 bhv_vnode_t
*vp
= NULL
;
1865 xfs_bmap_free_t free_list
;
1866 xfs_fsblock_t first_block
;
1867 boolean_t dp_joined_to_trans
;
1868 int dm_event_sent
= 0;
1872 struct xfs_dquot
*udqp
, *gdqp
;
1878 dir_vp
= BHV_TO_VNODE(dir_bdp
);
1879 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
1881 dp
= XFS_BHVTOI(dir_bdp
);
1884 dm_di_mode
= vap
->va_mode
;
1885 namelen
= VNAMELEN(dentry
);
1887 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_CREATE
)) {
1888 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_CREATE
,
1889 dir_vp
, DM_RIGHT_NULL
, NULL
,
1890 DM_RIGHT_NULL
, name
, NULL
,
1898 if (XFS_FORCED_SHUTDOWN(mp
))
1899 return XFS_ERROR(EIO
);
1901 /* Return through std_return after this point. */
1904 if (dp
->i_d
.di_flags
& XFS_DIFLAG_PROJINHERIT
)
1905 prid
= dp
->i_d
.di_projid
;
1906 else if (vap
->va_mask
& XFS_AT_PROJID
)
1907 prid
= (xfs_prid_t
)vap
->va_projid
;
1909 prid
= (xfs_prid_t
)dfltprid
;
1912 * Make sure that we have allocated dquot(s) on disk.
1914 error
= XFS_QM_DQVOPALLOC(mp
, dp
,
1915 current_fsuid(credp
), current_fsgid(credp
), prid
,
1916 XFS_QMOPT_QUOTALL
|XFS_QMOPT_INHERIT
, &udqp
, &gdqp
);
1921 dp_joined_to_trans
= B_FALSE
;
1923 tp
= xfs_trans_alloc(mp
, XFS_TRANS_CREATE
);
1924 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
1925 resblks
= XFS_CREATE_SPACE_RES(mp
, namelen
);
1927 * Initially assume that the file does not exist and
1928 * reserve the resources for that case. If that is not
1929 * the case we'll drop the one we have and get a more
1930 * appropriate transaction later.
1932 error
= xfs_trans_reserve(tp
, resblks
, XFS_CREATE_LOG_RES(mp
), 0,
1933 XFS_TRANS_PERM_LOG_RES
, XFS_CREATE_LOG_COUNT
);
1934 if (error
== ENOSPC
) {
1936 error
= xfs_trans_reserve(tp
, 0, XFS_CREATE_LOG_RES(mp
), 0,
1937 XFS_TRANS_PERM_LOG_RES
, XFS_CREATE_LOG_COUNT
);
1945 xfs_ilock(dp
, XFS_ILOCK_EXCL
);
1947 XFS_BMAP_INIT(&free_list
, &first_block
);
1952 * Reserve disk quota and the inode.
1954 error
= XFS_TRANS_RESERVE_QUOTA(mp
, tp
, udqp
, gdqp
, resblks
, 1, 0);
1958 if (resblks
== 0 && (error
= xfs_dir_canenter(tp
, dp
, name
, namelen
)))
1960 rdev
= (vap
->va_mask
& XFS_AT_RDEV
) ? vap
->va_rdev
: 0;
1961 error
= xfs_dir_ialloc(&tp
, dp
, vap
->va_mode
, 1,
1962 rdev
, credp
, prid
, resblks
> 0,
1965 if (error
== ENOSPC
)
1972 * At this point, we've gotten a newly allocated inode.
1973 * It is locked (and joined to the transaction).
1976 ASSERT(ismrlocked (&ip
->i_lock
, MR_UPDATE
));
1979 * Now we join the directory inode to the transaction.
1980 * We do not do it earlier because xfs_dir_ialloc
1981 * might commit the previous transaction (and release
1986 xfs_trans_ijoin(tp
, dp
, XFS_ILOCK_EXCL
);
1987 dp_joined_to_trans
= B_TRUE
;
1989 error
= xfs_dir_createname(tp
, dp
, name
, namelen
, ip
->i_ino
,
1990 &first_block
, &free_list
, resblks
?
1991 resblks
- XFS_IALLOC_SPACE_RES(mp
) : 0);
1993 ASSERT(error
!= ENOSPC
);
1996 xfs_ichgtime(dp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
1997 xfs_trans_log_inode(tp
, dp
, XFS_ILOG_CORE
);
2000 * If this is a synchronous mount, make sure that the
2001 * create transaction goes to disk before returning to
2004 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
2005 xfs_trans_set_sync(tp
);
2011 * Attach the dquot(s) to the inodes and modify them incore.
2012 * These ids of the inode couldn't have changed since the new
2013 * inode has been locked ever since it was created.
2015 XFS_QM_DQVOPCREATE(mp
, tp
, ip
, udqp
, gdqp
);
2018 * xfs_trans_commit normally decrements the vnode ref count
2019 * when it unlocks the inode. Since we want to return the
2020 * vnode to the caller, we bump the vnode ref count now.
2025 error
= xfs_bmap_finish(&tp
, &free_list
, first_block
, &committed
);
2027 xfs_bmap_cancel(&free_list
);
2031 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
2038 XFS_QM_DQRELE(mp
, udqp
);
2039 XFS_QM_DQRELE(mp
, gdqp
);
2042 * Propagate the fact that the vnode changed after the
2043 * xfs_inode locks have been released.
2045 bhv_vop_vnode_change(vp
, VCHANGE_FLAGS_TRUNCATED
, 3);
2049 /* Fallthrough to std_return with error = 0 */
2052 if ( (*vpp
|| (error
!= 0 && dm_event_sent
!= 0)) &&
2053 DM_EVENT_ENABLED(dir_vp
->v_vfsp
, XFS_BHVTOI(dir_bdp
),
2054 DM_EVENT_POSTCREATE
)) {
2055 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTCREATE
,
2056 dir_vp
, DM_RIGHT_NULL
,
2058 DM_RIGHT_NULL
, name
, NULL
,
2059 dm_di_mode
, error
, 0);
2064 cancel_flags
|= XFS_TRANS_ABORT
;
2069 xfs_trans_cancel(tp
, cancel_flags
);
2071 if (!dp_joined_to_trans
&& (dp
!= NULL
))
2072 xfs_iunlock(dp
, XFS_ILOCK_EXCL
);
2073 XFS_QM_DQRELE(mp
, udqp
);
2074 XFS_QM_DQRELE(mp
, gdqp
);
2080 * Wait until after the current transaction is aborted to
2081 * release the inode. This prevents recursive transactions
2082 * and deadlocks from xfs_inactive.
2084 cancel_flags
|= XFS_TRANS_ABORT
;
2085 xfs_trans_cancel(tp
, cancel_flags
);
2088 XFS_QM_DQRELE(mp
, udqp
);
2089 XFS_QM_DQRELE(mp
, gdqp
);
2096 * Some counters to see if (and how often) we are hitting some deadlock
2097 * prevention code paths.
2101 int xfs_rm_lock_delays
;
2102 int xfs_rm_attempts
;
2106 * The following routine will lock the inodes associated with the
2107 * directory and the named entry in the directory. The locks are
2108 * acquired in increasing inode number.
2110 * If the entry is "..", then only the directory is locked. The
2111 * vnode ref count will still include that from the .. entry in
2114 * There is a deadlock we need to worry about. If the locked directory is
2115 * in the AIL, it might be blocking up the log. The next inode we lock
2116 * could be already locked by another thread waiting for log space (e.g
2117 * a permanent log reservation with a long running transaction (see
2118 * xfs_itruncate_finish)). To solve this, we must check if the directory
2119 * is in the ail and use lock_nowait. If we can't lock, we need to
2120 * drop the inode lock on the directory and try again. xfs_iunlock will
2121 * potentially push the tail if we were holding up the log.
2124 xfs_lock_dir_and_entry(
2126 bhv_vname_t
*dentry
,
2127 xfs_inode_t
*ip
) /* inode of entry 'name' */
2131 xfs_inode_t
*ips
[2];
2140 xfs_ilock(dp
, XFS_ILOCK_EXCL
);
2147 * We want to lock in increasing inum. Since we've already
2148 * acquired the lock on the directory, we may need to release
2149 * if if the inum of the entry turns out to be less.
2151 if (e_inum
> dp
->i_ino
) {
2153 * We are already in the right order, so just
2154 * lock on the inode of the entry.
2155 * We need to use nowait if dp is in the AIL.
2158 lp
= (xfs_log_item_t
*)dp
->i_itemp
;
2159 if (lp
&& (lp
->li_flags
& XFS_LI_IN_AIL
)) {
2160 if (!xfs_ilock_nowait(ip
, XFS_ILOCK_EXCL
)) {
2167 * Unlock dp and try again.
2168 * xfs_iunlock will try to push the tail
2169 * if the inode is in the AIL.
2172 xfs_iunlock(dp
, XFS_ILOCK_EXCL
);
2174 if ((attempts
% 5) == 0) {
2175 delay(1); /* Don't just spin the CPU */
2177 xfs_rm_lock_delays
++;
2183 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
2185 } else if (e_inum
< dp
->i_ino
) {
2186 xfs_iunlock(dp
, XFS_ILOCK_EXCL
);
2190 xfs_lock_inodes(ips
, 2, 0, XFS_ILOCK_EXCL
);
2192 /* else e_inum == dp->i_ino */
2193 /* This can happen if we're asked to lock /x/..
2194 * the entry is "..", which is also the parent directory.
2202 int xfs_small_retries
;
2203 int xfs_middle_retries
;
2204 int xfs_lots_retries
;
2205 int xfs_lock_delays
;
2209 * The following routine will lock n inodes in exclusive mode.
2210 * We assume the caller calls us with the inodes in i_ino order.
2212 * We need to detect deadlock where an inode that we lock
2213 * is in the AIL and we start waiting for another inode that is locked
2214 * by a thread in a long running transaction (such as truncate). This can
2215 * result in deadlock since the long running trans might need to wait
2216 * for the inode we just locked in order to push the tail and free space
2226 int attempts
= 0, i
, j
, try_lock
;
2229 ASSERT(ips
&& (inodes
>= 2)); /* we need at least two */
2240 for (; i
< inodes
; i
++) {
2243 if (i
&& (ips
[i
] == ips
[i
-1])) /* Already locked */
2247 * If try_lock is not set yet, make sure all locked inodes
2248 * are not in the AIL.
2249 * If any are, set try_lock to be used later.
2253 for (j
= (i
- 1); j
>= 0 && !try_lock
; j
--) {
2254 lp
= (xfs_log_item_t
*)ips
[j
]->i_itemp
;
2255 if (lp
&& (lp
->li_flags
& XFS_LI_IN_AIL
)) {
2262 * If any of the previous locks we have locked is in the AIL,
2263 * we must TRY to get the second and subsequent locks. If
2264 * we can't get any, we must release all we have
2269 /* try_lock must be 0 if i is 0. */
2271 * try_lock means we have an inode locked
2272 * that is in the AIL.
2275 if (!xfs_ilock_nowait(ips
[i
], lock_mode
)) {
2279 * Unlock all previous guys and try again.
2280 * xfs_iunlock will try to push the tail
2281 * if the inode is in the AIL.
2284 for(j
= i
- 1; j
>= 0; j
--) {
2287 * Check to see if we've already
2288 * unlocked this one.
2289 * Not the first one going back,
2290 * and the inode ptr is the same.
2292 if ((j
!= (i
- 1)) && ips
[j
] ==
2296 xfs_iunlock(ips
[j
], lock_mode
);
2299 if ((attempts
% 5) == 0) {
2300 delay(1); /* Don't just spin the CPU */
2310 xfs_ilock(ips
[i
], lock_mode
);
2316 if (attempts
< 5) xfs_small_retries
++;
2317 else if (attempts
< 100) xfs_middle_retries
++;
2318 else xfs_lots_retries
++;
2326 #define REMOVE_DEBUG_TRACE(x) {remove_which_error_return = (x);}
2327 int remove_which_error_return
= 0;
2329 #define REMOVE_DEBUG_TRACE(x)
2330 #endif /* ! DEBUG */
2339 bhv_desc_t
*dir_bdp
,
2340 bhv_vname_t
*dentry
,
2343 bhv_vnode_t
*dir_vp
;
2344 char *name
= VNAME(dentry
);
2345 xfs_inode_t
*dp
, *ip
;
2346 xfs_trans_t
*tp
= NULL
;
2349 xfs_bmap_free_t free_list
;
2350 xfs_fsblock_t first_block
;
2358 dir_vp
= BHV_TO_VNODE(dir_bdp
);
2359 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
2361 dp
= XFS_BHVTOI(dir_bdp
);
2364 if (XFS_FORCED_SHUTDOWN(mp
))
2365 return XFS_ERROR(EIO
);
2367 namelen
= VNAMELEN(dentry
);
2369 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_REMOVE
)) {
2370 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_REMOVE
, dir_vp
,
2371 DM_RIGHT_NULL
, NULL
, DM_RIGHT_NULL
,
2372 name
, NULL
, 0, 0, 0);
2377 /* From this point on, return through std_return */
2381 * We need to get a reference to ip before we get our log
2382 * reservation. The reason for this is that we cannot call
2383 * xfs_iget for an inode for which we do not have a reference
2384 * once we've acquired a log reservation. This is because the
2385 * inode we are trying to get might be in xfs_inactive going
2386 * for a log reservation. Since we'll have to wait for the
2387 * inactive code to complete before returning from xfs_iget,
2388 * we need to make sure that we don't have log space reserved
2389 * when we call xfs_iget. Instead we get an unlocked reference
2390 * to the inode before getting our log reservation.
2392 error
= xfs_get_dir_entry(dentry
, &ip
);
2394 REMOVE_DEBUG_TRACE(__LINE__
);
2398 dm_di_mode
= ip
->i_d
.di_mode
;
2400 vn_trace_entry(XFS_ITOV(ip
), __FUNCTION__
, (inst_t
*)__return_address
);
2404 error
= XFS_QM_DQATTACH(mp
, dp
, 0);
2405 if (!error
&& dp
!= ip
)
2406 error
= XFS_QM_DQATTACH(mp
, ip
, 0);
2408 REMOVE_DEBUG_TRACE(__LINE__
);
2413 tp
= xfs_trans_alloc(mp
, XFS_TRANS_REMOVE
);
2414 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
2416 * We try to get the real space reservation first,
2417 * allowing for directory btree deletion(s) implying
2418 * possible bmap insert(s). If we can't get the space
2419 * reservation then we use 0 instead, and avoid the bmap
2420 * btree insert(s) in the directory code by, if the bmap
2421 * insert tries to happen, instead trimming the LAST
2422 * block from the directory.
2424 resblks
= XFS_REMOVE_SPACE_RES(mp
);
2425 error
= xfs_trans_reserve(tp
, resblks
, XFS_REMOVE_LOG_RES(mp
), 0,
2426 XFS_TRANS_PERM_LOG_RES
, XFS_REMOVE_LOG_COUNT
);
2427 if (error
== ENOSPC
) {
2429 error
= xfs_trans_reserve(tp
, 0, XFS_REMOVE_LOG_RES(mp
), 0,
2430 XFS_TRANS_PERM_LOG_RES
, XFS_REMOVE_LOG_COUNT
);
2433 ASSERT(error
!= ENOSPC
);
2434 REMOVE_DEBUG_TRACE(__LINE__
);
2435 xfs_trans_cancel(tp
, 0);
2440 error
= xfs_lock_dir_and_entry(dp
, dentry
, ip
);
2442 REMOVE_DEBUG_TRACE(__LINE__
);
2443 xfs_trans_cancel(tp
, cancel_flags
);
2449 * At this point, we've gotten both the directory and the entry
2452 xfs_trans_ijoin(tp
, dp
, XFS_ILOCK_EXCL
);
2455 * Increment vnode ref count only in this case since
2456 * there's an extra vnode reference in the case where
2460 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
);
2464 * Entry must exist since we did a lookup in xfs_lock_dir_and_entry.
2466 XFS_BMAP_INIT(&free_list
, &first_block
);
2467 error
= xfs_dir_removename(tp
, dp
, name
, namelen
, ip
->i_ino
,
2468 &first_block
, &free_list
, 0);
2470 ASSERT(error
!= ENOENT
);
2471 REMOVE_DEBUG_TRACE(__LINE__
);
2474 xfs_ichgtime(dp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
2477 xfs_trans_log_inode(tp
, dp
, XFS_ILOG_CORE
);
2479 error
= xfs_droplink(tp
, ip
);
2481 REMOVE_DEBUG_TRACE(__LINE__
);
2485 /* Determine if this is the last link while
2486 * we are in the transaction.
2488 link_zero
= (ip
)->i_d
.di_nlink
==0;
2491 * Take an extra ref on the inode so that it doesn't
2492 * go to xfs_inactive() from within the commit.
2497 * If this is a synchronous mount, make sure that the
2498 * remove transaction goes to disk before returning to
2501 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
2502 xfs_trans_set_sync(tp
);
2505 error
= xfs_bmap_finish(&tp
, &free_list
, first_block
, &committed
);
2507 REMOVE_DEBUG_TRACE(__LINE__
);
2511 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
2518 * Before we drop our extra reference to the inode, purge it
2519 * from the refcache if it is there. By waiting until afterwards
2520 * to do the IRELE, we ensure that we won't go inactive in the
2521 * xfs_refcache_purge_ip routine (although that would be OK).
2523 xfs_refcache_purge_ip(ip
);
2525 vn_trace_exit(XFS_ITOV(ip
), __FUNCTION__
, (inst_t
*)__return_address
);
2528 * Let interposed file systems know about removed links.
2530 bhv_vop_link_removed(XFS_ITOV(ip
), dir_vp
, link_zero
);
2534 /* Fall through to std_return with error = 0 */
2536 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
,
2537 DM_EVENT_POSTREMOVE
)) {
2538 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTREMOVE
,
2539 dir_vp
, DM_RIGHT_NULL
,
2540 NULL
, DM_RIGHT_NULL
,
2541 name
, NULL
, dm_di_mode
, error
, 0);
2546 xfs_bmap_cancel(&free_list
);
2547 cancel_flags
|= XFS_TRANS_ABORT
;
2548 xfs_trans_cancel(tp
, cancel_flags
);
2553 * In this case make sure to not release the inode until after
2554 * the current transaction is aborted. Releasing it beforehand
2555 * can cause us to go to xfs_inactive and start a recursive
2556 * transaction which can easily deadlock with the current one.
2558 xfs_bmap_cancel(&free_list
);
2559 cancel_flags
|= XFS_TRANS_ABORT
;
2560 xfs_trans_cancel(tp
, cancel_flags
);
2563 * Before we drop our extra reference to the inode, purge it
2564 * from the refcache if it is there. By waiting until afterwards
2565 * to do the IRELE, we ensure that we won't go inactive in the
2566 * xfs_refcache_purge_ip routine (although that would be OK).
2568 xfs_refcache_purge_ip(ip
);
2582 bhv_desc_t
*target_dir_bdp
,
2583 bhv_vnode_t
*src_vp
,
2584 bhv_vname_t
*dentry
,
2587 xfs_inode_t
*tdp
, *sip
;
2590 xfs_inode_t
*ips
[2];
2592 xfs_bmap_free_t free_list
;
2593 xfs_fsblock_t first_block
;
2596 bhv_vnode_t
*target_dir_vp
;
2598 char *target_name
= VNAME(dentry
);
2601 target_dir_vp
= BHV_TO_VNODE(target_dir_bdp
);
2602 vn_trace_entry(target_dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
2603 vn_trace_entry(src_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
2605 target_namelen
= VNAMELEN(dentry
);
2606 ASSERT(!VN_ISDIR(src_vp
));
2608 sip
= xfs_vtoi(src_vp
);
2609 tdp
= XFS_BHVTOI(target_dir_bdp
);
2611 if (XFS_FORCED_SHUTDOWN(mp
))
2612 return XFS_ERROR(EIO
);
2614 if (DM_EVENT_ENABLED(src_vp
->v_vfsp
, tdp
, DM_EVENT_LINK
)) {
2615 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_LINK
,
2616 target_dir_vp
, DM_RIGHT_NULL
,
2617 src_vp
, DM_RIGHT_NULL
,
2618 target_name
, NULL
, 0, 0, 0);
2623 /* Return through std_return after this point. */
2625 error
= XFS_QM_DQATTACH(mp
, sip
, 0);
2626 if (!error
&& sip
!= tdp
)
2627 error
= XFS_QM_DQATTACH(mp
, tdp
, 0);
2631 tp
= xfs_trans_alloc(mp
, XFS_TRANS_LINK
);
2632 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
2633 resblks
= XFS_LINK_SPACE_RES(mp
, target_namelen
);
2634 error
= xfs_trans_reserve(tp
, resblks
, XFS_LINK_LOG_RES(mp
), 0,
2635 XFS_TRANS_PERM_LOG_RES
, XFS_LINK_LOG_COUNT
);
2636 if (error
== ENOSPC
) {
2638 error
= xfs_trans_reserve(tp
, 0, XFS_LINK_LOG_RES(mp
), 0,
2639 XFS_TRANS_PERM_LOG_RES
, XFS_LINK_LOG_COUNT
);
2646 if (sip
->i_ino
< tdp
->i_ino
) {
2654 xfs_lock_inodes(ips
, 2, 0, XFS_ILOCK_EXCL
);
2657 * Increment vnode ref counts since xfs_trans_commit &
2658 * xfs_trans_cancel will both unlock the inodes and
2659 * decrement the associated ref counts.
2662 VN_HOLD(target_dir_vp
);
2663 xfs_trans_ijoin(tp
, sip
, XFS_ILOCK_EXCL
);
2664 xfs_trans_ijoin(tp
, tdp
, XFS_ILOCK_EXCL
);
2667 * If the source has too many links, we can't make any more to it.
2669 if (sip
->i_d
.di_nlink
>= XFS_MAXLINK
) {
2670 error
= XFS_ERROR(EMLINK
);
2675 * If we are using project inheritance, we only allow hard link
2676 * creation in our tree when the project IDs are the same; else
2677 * the tree quota mechanism could be circumvented.
2679 if (unlikely((tdp
->i_d
.di_flags
& XFS_DIFLAG_PROJINHERIT
) &&
2680 (tdp
->i_d
.di_projid
!= sip
->i_d
.di_projid
))) {
2681 error
= XFS_ERROR(EXDEV
);
2686 (error
= xfs_dir_canenter(tp
, tdp
, target_name
, target_namelen
)))
2689 XFS_BMAP_INIT(&free_list
, &first_block
);
2691 error
= xfs_dir_createname(tp
, tdp
, target_name
, target_namelen
,
2692 sip
->i_ino
, &first_block
, &free_list
,
2696 xfs_ichgtime(tdp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
2698 xfs_trans_log_inode(tp
, tdp
, XFS_ILOG_CORE
);
2700 error
= xfs_bumplink(tp
, sip
);
2705 * If this is a synchronous mount, make sure that the
2706 * link transaction goes to disk before returning to
2709 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
2710 xfs_trans_set_sync(tp
);
2713 error
= xfs_bmap_finish (&tp
, &free_list
, first_block
, &committed
);
2715 xfs_bmap_cancel(&free_list
);
2719 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
2723 /* Fall through to std_return with error = 0. */
2725 if (DM_EVENT_ENABLED(src_vp
->v_vfsp
, sip
,
2726 DM_EVENT_POSTLINK
)) {
2727 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTLINK
,
2728 target_dir_vp
, DM_RIGHT_NULL
,
2729 src_vp
, DM_RIGHT_NULL
,
2730 target_name
, NULL
, 0, error
, 0);
2735 cancel_flags
|= XFS_TRANS_ABORT
;
2739 xfs_trans_cancel(tp
, cancel_flags
);
2750 bhv_desc_t
*dir_bdp
,
2751 bhv_vname_t
*dentry
,
2756 char *dir_name
= VNAME(dentry
);
2758 xfs_inode_t
*cdp
; /* inode of created dir */
2759 bhv_vnode_t
*cvp
; /* vnode of created dir */
2765 xfs_bmap_free_t free_list
;
2766 xfs_fsblock_t first_block
;
2767 bhv_vnode_t
*dir_vp
;
2768 boolean_t dp_joined_to_trans
;
2769 boolean_t created
= B_FALSE
;
2770 int dm_event_sent
= 0;
2772 struct xfs_dquot
*udqp
, *gdqp
;
2777 dir_vp
= BHV_TO_VNODE(dir_bdp
);
2778 dp
= XFS_BHVTOI(dir_bdp
);
2781 if (XFS_FORCED_SHUTDOWN(mp
))
2782 return XFS_ERROR(EIO
);
2784 dir_namelen
= VNAMELEN(dentry
);
2787 dp_joined_to_trans
= B_FALSE
;
2788 dm_di_mode
= vap
->va_mode
;
2790 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_CREATE
)) {
2791 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_CREATE
,
2792 dir_vp
, DM_RIGHT_NULL
, NULL
,
2793 DM_RIGHT_NULL
, dir_name
, NULL
,
2800 /* Return through std_return after this point. */
2802 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
2806 if (dp
->i_d
.di_flags
& XFS_DIFLAG_PROJINHERIT
)
2807 prid
= dp
->i_d
.di_projid
;
2808 else if (vap
->va_mask
& XFS_AT_PROJID
)
2809 prid
= (xfs_prid_t
)vap
->va_projid
;
2811 prid
= (xfs_prid_t
)dfltprid
;
2814 * Make sure that we have allocated dquot(s) on disk.
2816 error
= XFS_QM_DQVOPALLOC(mp
, dp
,
2817 current_fsuid(credp
), current_fsgid(credp
), prid
,
2818 XFS_QMOPT_QUOTALL
| XFS_QMOPT_INHERIT
, &udqp
, &gdqp
);
2822 tp
= xfs_trans_alloc(mp
, XFS_TRANS_MKDIR
);
2823 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
2824 resblks
= XFS_MKDIR_SPACE_RES(mp
, dir_namelen
);
2825 error
= xfs_trans_reserve(tp
, resblks
, XFS_MKDIR_LOG_RES(mp
), 0,
2826 XFS_TRANS_PERM_LOG_RES
, XFS_MKDIR_LOG_COUNT
);
2827 if (error
== ENOSPC
) {
2829 error
= xfs_trans_reserve(tp
, 0, XFS_MKDIR_LOG_RES(mp
), 0,
2830 XFS_TRANS_PERM_LOG_RES
,
2831 XFS_MKDIR_LOG_COUNT
);
2839 xfs_ilock(dp
, XFS_ILOCK_EXCL
);
2842 * Check for directory link count overflow.
2844 if (dp
->i_d
.di_nlink
>= XFS_MAXLINK
) {
2845 error
= XFS_ERROR(EMLINK
);
2850 * Reserve disk quota and the inode.
2852 error
= XFS_TRANS_RESERVE_QUOTA(mp
, tp
, udqp
, gdqp
, resblks
, 1, 0);
2857 (error
= xfs_dir_canenter(tp
, dp
, dir_name
, dir_namelen
)))
2860 * create the directory inode.
2862 error
= xfs_dir_ialloc(&tp
, dp
, vap
->va_mode
, 2,
2863 0, credp
, prid
, resblks
> 0,
2866 if (error
== ENOSPC
)
2873 * Now we add the directory inode to the transaction.
2874 * We waited until now since xfs_dir_ialloc might start
2875 * a new transaction. Had we joined the transaction
2876 * earlier, the locks might have gotten released.
2879 xfs_trans_ijoin(tp
, dp
, XFS_ILOCK_EXCL
);
2880 dp_joined_to_trans
= B_TRUE
;
2882 XFS_BMAP_INIT(&free_list
, &first_block
);
2884 error
= xfs_dir_createname(tp
, dp
, dir_name
, dir_namelen
, cdp
->i_ino
,
2885 &first_block
, &free_list
, resblks
?
2886 resblks
- XFS_IALLOC_SPACE_RES(mp
) : 0);
2888 ASSERT(error
!= ENOSPC
);
2891 xfs_ichgtime(dp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
2894 * Bump the in memory version number of the parent directory
2895 * so that other processes accessing it will recognize that
2896 * the directory has changed.
2900 error
= xfs_dir_init(tp
, cdp
, dp
);
2905 error
= xfs_bumplink(tp
, dp
);
2909 cvp
= XFS_ITOV(cdp
);
2917 * Attach the dquots to the new inode and modify the icount incore.
2919 XFS_QM_DQVOPCREATE(mp
, tp
, cdp
, udqp
, gdqp
);
2922 * If this is a synchronous mount, make sure that the
2923 * mkdir transaction goes to disk before returning to
2926 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
2927 xfs_trans_set_sync(tp
);
2930 error
= xfs_bmap_finish(&tp
, &free_list
, first_block
, &committed
);
2936 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
2937 XFS_QM_DQRELE(mp
, udqp
);
2938 XFS_QM_DQRELE(mp
, gdqp
);
2943 /* Fall through to std_return with error = 0 or errno from
2944 * xfs_trans_commit. */
2947 if ( (created
|| (error
!= 0 && dm_event_sent
!= 0)) &&
2948 DM_EVENT_ENABLED(dir_vp
->v_vfsp
, XFS_BHVTOI(dir_bdp
),
2949 DM_EVENT_POSTCREATE
)) {
2950 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTCREATE
,
2951 dir_vp
, DM_RIGHT_NULL
,
2952 created
? XFS_ITOV(cdp
):NULL
,
2955 dm_di_mode
, error
, 0);
2961 xfs_bmap_cancel(&free_list
);
2963 cancel_flags
|= XFS_TRANS_ABORT
;
2965 xfs_trans_cancel(tp
, cancel_flags
);
2966 XFS_QM_DQRELE(mp
, udqp
);
2967 XFS_QM_DQRELE(mp
, gdqp
);
2969 if (!dp_joined_to_trans
&& (dp
!= NULL
)) {
2970 xfs_iunlock(dp
, XFS_ILOCK_EXCL
);
2983 bhv_desc_t
*dir_bdp
,
2984 bhv_vname_t
*dentry
,
2987 char *name
= VNAME(dentry
);
2989 xfs_inode_t
*cdp
; /* child directory */
2993 xfs_bmap_free_t free_list
;
2994 xfs_fsblock_t first_block
;
2997 bhv_vnode_t
*dir_vp
;
3003 dir_vp
= BHV_TO_VNODE(dir_bdp
);
3004 dp
= XFS_BHVTOI(dir_bdp
);
3007 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
3009 if (XFS_FORCED_SHUTDOWN(XFS_BHVTOI(dir_bdp
)->i_mount
))
3010 return XFS_ERROR(EIO
);
3011 namelen
= VNAMELEN(dentry
);
3013 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_REMOVE
)) {
3014 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_REMOVE
,
3015 dir_vp
, DM_RIGHT_NULL
,
3016 NULL
, DM_RIGHT_NULL
,
3017 name
, NULL
, 0, 0, 0);
3019 return XFS_ERROR(error
);
3022 /* Return through std_return after this point. */
3027 * We need to get a reference to cdp before we get our log
3028 * reservation. The reason for this is that we cannot call
3029 * xfs_iget for an inode for which we do not have a reference
3030 * once we've acquired a log reservation. This is because the
3031 * inode we are trying to get might be in xfs_inactive going
3032 * for a log reservation. Since we'll have to wait for the
3033 * inactive code to complete before returning from xfs_iget,
3034 * we need to make sure that we don't have log space reserved
3035 * when we call xfs_iget. Instead we get an unlocked reference
3036 * to the inode before getting our log reservation.
3038 error
= xfs_get_dir_entry(dentry
, &cdp
);
3040 REMOVE_DEBUG_TRACE(__LINE__
);
3044 dm_di_mode
= cdp
->i_d
.di_mode
;
3047 * Get the dquots for the inodes.
3049 error
= XFS_QM_DQATTACH(mp
, dp
, 0);
3050 if (!error
&& dp
!= cdp
)
3051 error
= XFS_QM_DQATTACH(mp
, cdp
, 0);
3054 REMOVE_DEBUG_TRACE(__LINE__
);
3058 tp
= xfs_trans_alloc(mp
, XFS_TRANS_RMDIR
);
3059 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
3061 * We try to get the real space reservation first,
3062 * allowing for directory btree deletion(s) implying
3063 * possible bmap insert(s). If we can't get the space
3064 * reservation then we use 0 instead, and avoid the bmap
3065 * btree insert(s) in the directory code by, if the bmap
3066 * insert tries to happen, instead trimming the LAST
3067 * block from the directory.
3069 resblks
= XFS_REMOVE_SPACE_RES(mp
);
3070 error
= xfs_trans_reserve(tp
, resblks
, XFS_REMOVE_LOG_RES(mp
), 0,
3071 XFS_TRANS_PERM_LOG_RES
, XFS_DEFAULT_LOG_COUNT
);
3072 if (error
== ENOSPC
) {
3074 error
= xfs_trans_reserve(tp
, 0, XFS_REMOVE_LOG_RES(mp
), 0,
3075 XFS_TRANS_PERM_LOG_RES
, XFS_DEFAULT_LOG_COUNT
);
3078 ASSERT(error
!= ENOSPC
);
3083 XFS_BMAP_INIT(&free_list
, &first_block
);
3086 * Now lock the child directory inode and the parent directory
3087 * inode in the proper order. This will take care of validating
3088 * that the directory entry for the child directory inode has
3089 * not changed while we were obtaining a log reservation.
3091 error
= xfs_lock_dir_and_entry(dp
, dentry
, cdp
);
3093 xfs_trans_cancel(tp
, cancel_flags
);
3098 xfs_trans_ijoin(tp
, dp
, XFS_ILOCK_EXCL
);
3101 * Only increment the parent directory vnode count if
3102 * we didn't bump it in looking up cdp. The only time
3103 * we don't bump it is when we're looking up ".".
3109 xfs_trans_ijoin(tp
, cdp
, XFS_ILOCK_EXCL
);
3111 ASSERT(cdp
->i_d
.di_nlink
>= 2);
3112 if (cdp
->i_d
.di_nlink
!= 2) {
3113 error
= XFS_ERROR(ENOTEMPTY
);
3116 if (!xfs_dir_isempty(cdp
)) {
3117 error
= XFS_ERROR(ENOTEMPTY
);
3121 error
= xfs_dir_removename(tp
, dp
, name
, namelen
, cdp
->i_ino
,
3122 &first_block
, &free_list
, resblks
);
3126 xfs_ichgtime(dp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
3129 * Bump the in memory generation count on the parent
3130 * directory so that other can know that it has changed.
3135 * Drop the link from cdp's "..".
3137 error
= xfs_droplink(tp
, dp
);
3143 * Drop the link from dp to cdp.
3145 error
= xfs_droplink(tp
, cdp
);
3151 * Drop the "." link from cdp to self.
3153 error
= xfs_droplink(tp
, cdp
);
3158 /* Determine these before committing transaction */
3159 last_cdp_link
= (cdp
)->i_d
.di_nlink
==0;
3162 * Take an extra ref on the child vnode so that it
3163 * does not go to xfs_inactive() from within the commit.
3168 * If this is a synchronous mount, make sure that the
3169 * rmdir transaction goes to disk before returning to
3172 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
3173 xfs_trans_set_sync(tp
);
3176 error
= xfs_bmap_finish (&tp
, &free_list
, first_block
, &committed
);
3178 xfs_bmap_cancel(&free_list
);
3179 xfs_trans_cancel(tp
, (XFS_TRANS_RELEASE_LOG_RES
|
3185 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
3193 * Let interposed file systems know about removed links.
3195 bhv_vop_link_removed(XFS_ITOV(cdp
), dir_vp
, last_cdp_link
);
3199 /* Fall through to std_return with error = 0 or the errno
3200 * from xfs_trans_commit. */
3202 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_POSTREMOVE
)) {
3203 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTREMOVE
,
3204 dir_vp
, DM_RIGHT_NULL
,
3205 NULL
, DM_RIGHT_NULL
,
3206 name
, NULL
, dm_di_mode
,
3212 xfs_bmap_cancel(&free_list
);
3213 cancel_flags
|= XFS_TRANS_ABORT
;
3217 xfs_trans_cancel(tp
, cancel_flags
);
3223 * Read dp's entries starting at uiop->uio_offset and translate them into
3224 * bufsize bytes worth of struct dirents starting at bufbase.
3228 bhv_desc_t
*dir_bdp
,
3234 xfs_trans_t
*tp
= NULL
;
3238 vn_trace_entry(BHV_TO_VNODE(dir_bdp
), __FUNCTION__
,
3239 (inst_t
*)__return_address
);
3240 dp
= XFS_BHVTOI(dir_bdp
);
3242 if (XFS_FORCED_SHUTDOWN(dp
->i_mount
))
3243 return XFS_ERROR(EIO
);
3245 lock_mode
= xfs_ilock_map_shared(dp
);
3246 error
= xfs_dir_getdents(tp
, dp
, uiop
, eofp
);
3247 xfs_iunlock_map_shared(dp
, lock_mode
);
3254 bhv_desc_t
*dir_bdp
,
3255 bhv_vname_t
*dentry
,
3267 xfs_bmap_free_t free_list
;
3268 xfs_fsblock_t first_block
;
3269 boolean_t dp_joined_to_trans
;
3270 bhv_vnode_t
*dir_vp
;
3273 xfs_fileoff_t first_fsb
;
3274 xfs_filblks_t fs_blocks
;
3276 xfs_bmbt_irec_t mval
[SYMLINK_MAPS
];
3283 struct xfs_dquot
*udqp
, *gdqp
;
3285 char *link_name
= VNAME(dentry
);
3289 dir_vp
= BHV_TO_VNODE(dir_bdp
);
3290 dp
= XFS_BHVTOI(dir_bdp
);
3291 dp_joined_to_trans
= B_FALSE
;
3296 vn_trace_entry(dir_vp
, __FUNCTION__
, (inst_t
*)__return_address
);
3300 if (XFS_FORCED_SHUTDOWN(mp
))
3301 return XFS_ERROR(EIO
);
3303 link_namelen
= VNAMELEN(dentry
);
3306 * Check component lengths of the target path name.
3308 pathlen
= strlen(target_path
);
3309 if (pathlen
>= MAXPATHLEN
) /* total string too long */
3310 return XFS_ERROR(ENAMETOOLONG
);
3311 if (pathlen
>= MAXNAMELEN
) { /* is any component too long? */
3315 for (total
= 0, path
= target_path
; total
< pathlen
;) {
3319 while(*path
== '/') {
3325 * Count up to the next slash or end of path.
3326 * Error out if the component is bigger than MAXNAMELEN.
3328 for(len
= 0; *path
!= '/' && total
< pathlen
;total
++, path
++) {
3329 if (++len
>= MAXNAMELEN
) {
3330 error
= ENAMETOOLONG
;
3337 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, dp
, DM_EVENT_SYMLINK
)) {
3338 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_SYMLINK
, dir_vp
,
3339 DM_RIGHT_NULL
, NULL
, DM_RIGHT_NULL
,
3340 link_name
, target_path
, 0, 0, 0);
3345 /* Return through std_return after this point. */
3348 if (dp
->i_d
.di_flags
& XFS_DIFLAG_PROJINHERIT
)
3349 prid
= dp
->i_d
.di_projid
;
3350 else if (vap
->va_mask
& XFS_AT_PROJID
)
3351 prid
= (xfs_prid_t
)vap
->va_projid
;
3353 prid
= (xfs_prid_t
)dfltprid
;
3356 * Make sure that we have allocated dquot(s) on disk.
3358 error
= XFS_QM_DQVOPALLOC(mp
, dp
,
3359 current_fsuid(credp
), current_fsgid(credp
), prid
,
3360 XFS_QMOPT_QUOTALL
| XFS_QMOPT_INHERIT
, &udqp
, &gdqp
);
3364 tp
= xfs_trans_alloc(mp
, XFS_TRANS_SYMLINK
);
3365 cancel_flags
= XFS_TRANS_RELEASE_LOG_RES
;
3367 * The symlink will fit into the inode data fork?
3368 * There can't be any attributes so we get the whole variable part.
3370 if (pathlen
<= XFS_LITINO(mp
))
3373 fs_blocks
= XFS_B_TO_FSB(mp
, pathlen
);
3374 resblks
= XFS_SYMLINK_SPACE_RES(mp
, link_namelen
, fs_blocks
);
3375 error
= xfs_trans_reserve(tp
, resblks
, XFS_SYMLINK_LOG_RES(mp
), 0,
3376 XFS_TRANS_PERM_LOG_RES
, XFS_SYMLINK_LOG_COUNT
);
3377 if (error
== ENOSPC
&& fs_blocks
== 0) {
3379 error
= xfs_trans_reserve(tp
, 0, XFS_SYMLINK_LOG_RES(mp
), 0,
3380 XFS_TRANS_PERM_LOG_RES
, XFS_SYMLINK_LOG_COUNT
);
3388 xfs_ilock(dp
, XFS_ILOCK_EXCL
);
3391 * Check whether the directory allows new symlinks or not.
3393 if (dp
->i_d
.di_flags
& XFS_DIFLAG_NOSYMLINKS
) {
3394 error
= XFS_ERROR(EPERM
);
3399 * Reserve disk quota : blocks and inode.
3401 error
= XFS_TRANS_RESERVE_QUOTA(mp
, tp
, udqp
, gdqp
, resblks
, 1, 0);
3406 * Check for ability to enter directory entry, if no space reserved.
3409 (error
= xfs_dir_canenter(tp
, dp
, link_name
, link_namelen
)))
3412 * Initialize the bmap freelist prior to calling either
3413 * bmapi or the directory create code.
3415 XFS_BMAP_INIT(&free_list
, &first_block
);
3418 * Allocate an inode for the symlink.
3420 error
= xfs_dir_ialloc(&tp
, dp
, S_IFLNK
| (vap
->va_mode
&~S_IFMT
),
3421 1, 0, credp
, prid
, resblks
> 0, &ip
, NULL
);
3423 if (error
== ENOSPC
)
3430 xfs_trans_ijoin(tp
, dp
, XFS_ILOCK_EXCL
);
3431 dp_joined_to_trans
= B_TRUE
;
3434 * Also attach the dquot(s) to it, if applicable.
3436 XFS_QM_DQVOPCREATE(mp
, tp
, ip
, udqp
, gdqp
);
3439 resblks
-= XFS_IALLOC_SPACE_RES(mp
);
3441 * If the symlink will fit into the inode, write it inline.
3443 if (pathlen
<= XFS_IFORK_DSIZE(ip
)) {
3444 xfs_idata_realloc(ip
, pathlen
, XFS_DATA_FORK
);
3445 memcpy(ip
->i_df
.if_u1
.if_data
, target_path
, pathlen
);
3446 ip
->i_d
.di_size
= pathlen
;
3449 * The inode was initially created in extent format.
3451 ip
->i_df
.if_flags
&= ~(XFS_IFEXTENTS
| XFS_IFBROOT
);
3452 ip
->i_df
.if_flags
|= XFS_IFINLINE
;
3454 ip
->i_d
.di_format
= XFS_DINODE_FMT_LOCAL
;
3455 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_DDATA
| XFS_ILOG_CORE
);
3459 nmaps
= SYMLINK_MAPS
;
3461 error
= xfs_bmapi(tp
, ip
, first_fsb
, fs_blocks
,
3462 XFS_BMAPI_WRITE
| XFS_BMAPI_METADATA
,
3463 &first_block
, resblks
, mval
, &nmaps
,
3470 resblks
-= fs_blocks
;
3471 ip
->i_d
.di_size
= pathlen
;
3472 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
3474 cur_chunk
= target_path
;
3475 for (n
= 0; n
< nmaps
; n
++) {
3476 d
= XFS_FSB_TO_DADDR(mp
, mval
[n
].br_startblock
);
3477 byte_cnt
= XFS_FSB_TO_B(mp
, mval
[n
].br_blockcount
);
3478 bp
= xfs_trans_get_buf(tp
, mp
->m_ddev_targp
, d
,
3479 BTOBB(byte_cnt
), 0);
3480 ASSERT(bp
&& !XFS_BUF_GETERROR(bp
));
3481 if (pathlen
< byte_cnt
) {
3484 pathlen
-= byte_cnt
;
3486 memcpy(XFS_BUF_PTR(bp
), cur_chunk
, byte_cnt
);
3487 cur_chunk
+= byte_cnt
;
3489 xfs_trans_log_buf(tp
, bp
, 0, byte_cnt
- 1);
3494 * Create the directory entry for the symlink.
3496 error
= xfs_dir_createname(tp
, dp
, link_name
, link_namelen
, ip
->i_ino
,
3497 &first_block
, &free_list
, resblks
);
3500 xfs_ichgtime(dp
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
3501 xfs_trans_log_inode(tp
, dp
, XFS_ILOG_CORE
);
3504 * Bump the in memory version number of the parent directory
3505 * so that other processes accessing it will recognize that
3506 * the directory has changed.
3511 * If this is a synchronous mount, make sure that the
3512 * symlink transaction goes to disk before returning to
3515 if (mp
->m_flags
& (XFS_MOUNT_WSYNC
|XFS_MOUNT_DIRSYNC
)) {
3516 xfs_trans_set_sync(tp
);
3520 * xfs_trans_commit normally decrements the vnode ref count
3521 * when it unlocks the inode. Since we want to return the
3522 * vnode to the caller, we bump the vnode ref count now.
3526 error
= xfs_bmap_finish(&tp
, &free_list
, first_block
, &committed
);
3530 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
3531 XFS_QM_DQRELE(mp
, udqp
);
3532 XFS_QM_DQRELE(mp
, gdqp
);
3534 /* Fall through to std_return with error = 0 or errno from
3535 * xfs_trans_commit */
3537 if (DM_EVENT_ENABLED(dir_vp
->v_vfsp
, XFS_BHVTOI(dir_bdp
),
3538 DM_EVENT_POSTSYMLINK
)) {
3539 (void) XFS_SEND_NAMESP(mp
, DM_EVENT_POSTSYMLINK
,
3540 dir_vp
, DM_RIGHT_NULL
,
3541 error
? NULL
: XFS_ITOV(ip
),
3542 DM_RIGHT_NULL
, link_name
, target_path
,
3558 xfs_bmap_cancel(&free_list
);
3559 cancel_flags
|= XFS_TRANS_ABORT
;
3561 xfs_trans_cancel(tp
, cancel_flags
);
3562 XFS_QM_DQRELE(mp
, udqp
);
3563 XFS_QM_DQRELE(mp
, gdqp
);
3565 if (!dp_joined_to_trans
&& (dp
!= NULL
)) {
3566 xfs_iunlock(dp
, XFS_ILOCK_EXCL
);
3576 * A fid routine that takes a pointer to a previously allocated
3577 * fid structure (like xfs_fast_fid) but uses a 64 bit inode number.
3587 vn_trace_entry(BHV_TO_VNODE(bdp
), __FUNCTION__
,
3588 (inst_t
*)__return_address
);
3589 ASSERT(sizeof(fid_t
) >= sizeof(xfs_fid2_t
));
3591 xfid
= (xfs_fid2_t
*)fidp
;
3592 ip
= XFS_BHVTOI(bdp
);
3593 xfid
->fid_len
= sizeof(xfs_fid2_t
) - sizeof(xfid
->fid_len
);
3596 * use memcpy because the inode is a long long and there's no
3597 * assurance that xfid->fid_ino is properly aligned.
3599 memcpy(&xfid
->fid_ino
, &ip
->i_ino
, sizeof(xfid
->fid_ino
));
3600 xfid
->fid_gen
= ip
->i_d
.di_gen
;
3612 bhv_vrwlock_t locktype
)
3617 vp
= BHV_TO_VNODE(bdp
);
3620 ip
= XFS_BHVTOI(bdp
);
3621 if (locktype
== VRWLOCK_WRITE
) {
3622 xfs_ilock(ip
, XFS_IOLOCK_EXCL
);
3623 } else if (locktype
== VRWLOCK_TRY_READ
) {
3624 return xfs_ilock_nowait(ip
, XFS_IOLOCK_SHARED
);
3625 } else if (locktype
== VRWLOCK_TRY_WRITE
) {
3626 return xfs_ilock_nowait(ip
, XFS_IOLOCK_EXCL
);
3628 ASSERT((locktype
== VRWLOCK_READ
) ||
3629 (locktype
== VRWLOCK_WRITE_DIRECT
));
3630 xfs_ilock(ip
, XFS_IOLOCK_SHARED
);
3643 bhv_vrwlock_t locktype
)
3648 vp
= BHV_TO_VNODE(bdp
);
3651 ip
= XFS_BHVTOI(bdp
);
3652 if (locktype
== VRWLOCK_WRITE
) {
3654 * In the write case, we may have added a new entry to
3655 * the reference cache. This might store a pointer to
3656 * an inode to be released in this inode. If it is there,
3657 * clear the pointer and release the inode after unlocking
3660 xfs_refcache_iunlock(ip
, XFS_IOLOCK_EXCL
);
3662 ASSERT((locktype
== VRWLOCK_READ
) ||
3663 (locktype
== VRWLOCK_WRITE_DIRECT
));
3664 xfs_iunlock(ip
, XFS_IOLOCK_SHARED
);
3676 xfs_inode_log_item_t
*iip
;
3679 ip
= XFS_BHVTOI(bdp
);
3683 if (XFS_FORCED_SHUTDOWN(mp
))
3684 return XFS_ERROR(EIO
);
3687 * Bypass inodes which have already been cleaned by
3688 * the inode flush clustering code inside xfs_iflush
3690 if ((ip
->i_update_core
== 0) &&
3691 ((iip
== NULL
) || !(iip
->ili_format
.ilf_fields
& XFS_ILOG_ALL
)))
3694 if (flags
& FLUSH_LOG
) {
3695 if (iip
&& iip
->ili_last_lsn
) {
3696 xlog_t
*log
= mp
->m_log
;
3698 int s
, log_flags
= XFS_LOG_FORCE
;
3700 s
= GRANT_LOCK(log
);
3701 sync_lsn
= log
->l_last_sync_lsn
;
3702 GRANT_UNLOCK(log
, s
);
3704 if ((XFS_LSN_CMP(iip
->ili_last_lsn
, sync_lsn
) <= 0))
3707 if (flags
& FLUSH_SYNC
)
3708 log_flags
|= XFS_LOG_SYNC
;
3709 return xfs_log_force(mp
, iip
->ili_last_lsn
, log_flags
);
3714 * We make this non-blocking if the inode is contended,
3715 * return EAGAIN to indicate to the caller that they
3716 * did not succeed. This prevents the flush path from
3717 * blocking on inodes inside another operation right
3718 * now, they get caught later by xfs_sync.
3720 if (flags
& FLUSH_INODE
) {
3723 if (xfs_ipincount(ip
))
3726 if (flags
& FLUSH_SYNC
) {
3727 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
3729 } else if (xfs_ilock_nowait(ip
, XFS_ILOCK_SHARED
)) {
3730 if (xfs_ipincount(ip
) || !xfs_iflock_nowait(ip
)) {
3731 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
3738 if (flags
& FLUSH_SYNC
)
3739 flush_flags
= XFS_IFLUSH_SYNC
;
3741 flush_flags
= XFS_IFLUSH_ASYNC
;
3743 error
= xfs_iflush(ip
, flush_flags
);
3744 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
3762 if (!capable(CAP_SYS_ADMIN
))
3763 return XFS_ERROR(EPERM
);
3765 ip
= XFS_BHVTOI(bdp
);
3768 if (XFS_FORCED_SHUTDOWN(mp
))
3769 return XFS_ERROR(EIO
);
3771 tp
= xfs_trans_alloc(mp
, XFS_TRANS_SET_DMATTRS
);
3772 error
= xfs_trans_reserve(tp
, 0, XFS_ICHANGE_LOG_RES (mp
), 0, 0, 0);
3774 xfs_trans_cancel(tp
, 0);
3777 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
3778 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
);
3780 ip
->i_iocore
.io_dmevmask
= ip
->i_d
.di_dmevmask
= evmask
;
3781 ip
->i_iocore
.io_dmstate
= ip
->i_d
.di_dmstate
= state
;
3783 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
3785 error
= xfs_trans_commit(tp
, 0, NULL
);
3797 vp
= BHV_TO_VNODE(bdp
);
3798 ip
= XFS_BHVTOI(bdp
);
3800 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
3802 ASSERT(!VN_MAPPED(vp
));
3804 /* bad inode, get out here ASAP */
3812 ASSERT(XFS_FORCED_SHUTDOWN(ip
->i_mount
) || ip
->i_delayed_blks
== 0);
3815 * Make sure the atime in the XFS inode is correct before freeing the
3818 xfs_synchronize_atime(ip
);
3820 /* If we have nothing to flush with this inode then complete the
3821 * teardown now, otherwise break the link between the xfs inode
3822 * and the linux inode and clean up the xfs inode later. This
3823 * avoids flushing the inode to disk during the delete operation
3826 if (!ip
->i_update_core
&& (ip
->i_itemp
== NULL
)) {
3827 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
3829 return xfs_finish_reclaim(ip
, 1, XFS_IFLUSH_DELWRI_ELSE_SYNC
);
3831 xfs_mount_t
*mp
= ip
->i_mount
;
3833 /* Protect sync from us */
3834 XFS_MOUNT_ILOCK(mp
);
3835 vn_bhv_remove(VN_BHV_HEAD(vp
), XFS_ITOBHV(ip
));
3836 list_add_tail(&ip
->i_reclaim
, &mp
->m_del_inodes
);
3837 ip
->i_flags
|= XFS_IRECLAIMABLE
;
3838 XFS_MOUNT_IUNLOCK(mp
);
3849 xfs_ihash_t
*ih
= ip
->i_hash
;
3850 bhv_vnode_t
*vp
= XFS_ITOV_NULL(ip
);
3853 if (vp
&& VN_BAD(vp
))
3856 /* The hash lock here protects a thread in xfs_iget_core from
3857 * racing with us on linking the inode back with a vnode.
3858 * Once we have the XFS_IRECLAIM flag set it will not touch
3861 write_lock(&ih
->ih_lock
);
3862 if ((ip
->i_flags
& XFS_IRECLAIM
) ||
3863 (!(ip
->i_flags
& XFS_IRECLAIMABLE
) && vp
== NULL
)) {
3864 write_unlock(&ih
->ih_lock
);
3867 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
3871 ip
->i_flags
|= XFS_IRECLAIM
;
3872 write_unlock(&ih
->ih_lock
);
3875 * If the inode is still dirty, then flush it out. If the inode
3876 * is not in the AIL, then it will be OK to flush it delwri as
3877 * long as xfs_iflush() does not keep any references to the inode.
3878 * We leave that decision up to xfs_iflush() since it has the
3879 * knowledge of whether it's OK to simply do a delwri flush of
3880 * the inode or whether we need to wait until the inode is
3881 * pulled from the AIL.
3882 * We get the flush lock regardless, though, just to make sure
3883 * we don't free it while it is being flushed.
3885 if (!XFS_FORCED_SHUTDOWN(ip
->i_mount
)) {
3887 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
3891 if (ip
->i_update_core
||
3892 ((ip
->i_itemp
!= NULL
) &&
3893 (ip
->i_itemp
->ili_format
.ilf_fields
!= 0))) {
3894 error
= xfs_iflush(ip
, sync_mode
);
3896 * If we hit an error, typically because of filesystem
3897 * shutdown, we don't need to let vn_reclaim to know
3898 * because we're gonna reclaim the inode anyway.
3901 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
3904 xfs_iflock(ip
); /* synchronize with xfs_iflush_done */
3907 ASSERT(ip
->i_update_core
== 0);
3908 ASSERT(ip
->i_itemp
== NULL
||
3909 ip
->i_itemp
->ili_format
.ilf_fields
== 0);
3910 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
3911 } else if (locked
) {
3913 * We are not interested in doing an iflush if we're
3914 * in the process of shutting down the filesystem forcibly.
3915 * So, just reclaim the inode.
3918 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
3927 xfs_finish_reclaim_all(xfs_mount_t
*mp
, int noblock
)
3930 xfs_inode_t
*ip
, *n
;
3935 XFS_MOUNT_ILOCK(mp
);
3936 list_for_each_entry_safe(ip
, n
, &mp
->m_del_inodes
, i_reclaim
) {
3938 if (xfs_ilock_nowait(ip
, XFS_ILOCK_EXCL
) == 0)
3940 if (xfs_ipincount(ip
) ||
3941 !xfs_iflock_nowait(ip
)) {
3942 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
3946 XFS_MOUNT_IUNLOCK(mp
);
3947 if (xfs_finish_reclaim(ip
, noblock
,
3948 XFS_IFLUSH_DELWRI_ELSE_ASYNC
))
3957 XFS_MOUNT_IUNLOCK(mp
);
3962 * xfs_alloc_file_space()
3963 * This routine allocates disk space for the given file.
3965 * If alloc_type == 0, this request is for an ALLOCSP type
3966 * request which will change the file size. In this case, no
3967 * DMAPI event will be generated by the call. A TRUNCATE event
3968 * will be generated later by xfs_setattr.
3970 * If alloc_type != 0, this request is for a RESVSP type
3971 * request, and a DMAPI DM_EVENT_WRITE will be generated if the
3972 * lower block boundary byte address is less than the file's
3981 xfs_alloc_file_space(
3988 xfs_mount_t
*mp
= ip
->i_mount
;
3990 xfs_filblks_t allocated_fsb
;
3991 xfs_filblks_t allocatesize_fsb
;
3992 xfs_extlen_t extsz
, temp
;
3993 xfs_fileoff_t startoffset_fsb
;
3994 xfs_fsblock_t firstfsb
;
4000 xfs_bmbt_irec_t imaps
[1], *imapp
;
4001 xfs_bmap_free_t free_list
;
4002 uint qblocks
, resblks
, resrtextents
;
4006 vn_trace_entry(XFS_ITOV(ip
), __FUNCTION__
, (inst_t
*)__return_address
);
4008 if (XFS_FORCED_SHUTDOWN(mp
))
4009 return XFS_ERROR(EIO
);
4011 rt
= XFS_IS_REALTIME_INODE(ip
);
4013 if (!(extsz
= ip
->i_d
.di_extsize
))
4014 extsz
= mp
->m_sb
.sb_rextsize
;
4016 extsz
= ip
->i_d
.di_extsize
;
4019 if ((error
= XFS_QM_DQATTACH(mp
, ip
, 0)))
4023 return XFS_ERROR(EINVAL
);
4029 bmapi_flag
= XFS_BMAPI_WRITE
| (alloc_type
? XFS_BMAPI_PREALLOC
: 0);
4030 startoffset_fsb
= XFS_B_TO_FSBT(mp
, offset
);
4031 allocatesize_fsb
= XFS_B_TO_FSB(mp
, count
);
4033 /* Generate a DMAPI event if needed. */
4034 if (alloc_type
!= 0 && offset
< ip
->i_d
.di_size
&&
4035 (attr_flags
&ATTR_DMI
) == 0 &&
4036 DM_EVENT_ENABLED(XFS_MTOVFS(mp
), ip
, DM_EVENT_WRITE
)) {
4037 xfs_off_t end_dmi_offset
;
4039 end_dmi_offset
= offset
+len
;
4040 if (end_dmi_offset
> ip
->i_d
.di_size
)
4041 end_dmi_offset
= ip
->i_d
.di_size
;
4042 error
= XFS_SEND_DATA(mp
, DM_EVENT_WRITE
, XFS_ITOV(ip
),
4043 offset
, end_dmi_offset
- offset
,
4050 * Allocate file space until done or until there is an error
4053 while (allocatesize_fsb
&& !error
) {
4057 * Determine space reservations for data/realtime.
4059 if (unlikely(extsz
)) {
4060 s
= startoffset_fsb
;
4063 e
= startoffset_fsb
+ allocatesize_fsb
;
4064 if ((temp
= do_mod(startoffset_fsb
, extsz
)))
4066 if ((temp
= do_mod(e
, extsz
)))
4070 e
= allocatesize_fsb
;
4074 resrtextents
= qblocks
= (uint
)(e
- s
);
4075 resrtextents
/= mp
->m_sb
.sb_rextsize
;
4076 resblks
= XFS_DIOSTRAT_SPACE_RES(mp
, 0);
4077 quota_flag
= XFS_QMOPT_RES_RTBLKS
;
4080 resblks
= qblocks
= \
4081 XFS_DIOSTRAT_SPACE_RES(mp
, (uint
)(e
- s
));
4082 quota_flag
= XFS_QMOPT_RES_REGBLKS
;
4086 * Allocate and setup the transaction.
4088 tp
= xfs_trans_alloc(mp
, XFS_TRANS_DIOSTRAT
);
4089 error
= xfs_trans_reserve(tp
, resblks
,
4090 XFS_WRITE_LOG_RES(mp
), resrtextents
,
4091 XFS_TRANS_PERM_LOG_RES
,
4092 XFS_WRITE_LOG_COUNT
);
4094 * Check for running out of space
4098 * Free the transaction structure.
4100 ASSERT(error
== ENOSPC
|| XFS_FORCED_SHUTDOWN(mp
));
4101 xfs_trans_cancel(tp
, 0);
4104 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
4105 error
= XFS_TRANS_RESERVE_QUOTA_NBLKS(mp
, tp
, ip
,
4106 qblocks
, 0, quota_flag
);
4110 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
);
4111 xfs_trans_ihold(tp
, ip
);
4114 * Issue the xfs_bmapi() call to allocate the blocks
4116 XFS_BMAP_INIT(&free_list
, &firstfsb
);
4117 error
= XFS_BMAPI(mp
, tp
, &ip
->i_iocore
, startoffset_fsb
,
4118 allocatesize_fsb
, bmapi_flag
,
4119 &firstfsb
, 0, imapp
, &nimaps
,
4126 * Complete the transaction
4128 error
= xfs_bmap_finish(&tp
, &free_list
, firstfsb
, &committed
);
4133 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
4134 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
4139 allocated_fsb
= imapp
->br_blockcount
;
4142 error
= XFS_ERROR(ENOSPC
);
4146 startoffset_fsb
+= allocated_fsb
;
4147 allocatesize_fsb
-= allocated_fsb
;
4150 if (error
== ENOSPC
&& (attr_flags
&ATTR_DMI
) == 0 &&
4151 DM_EVENT_ENABLED(XFS_MTOVFS(mp
), ip
, DM_EVENT_NOSPACE
)) {
4153 error
= XFS_SEND_NAMESP(mp
, DM_EVENT_NOSPACE
,
4154 XFS_ITOV(ip
), DM_RIGHT_NULL
,
4155 XFS_ITOV(ip
), DM_RIGHT_NULL
,
4156 NULL
, NULL
, 0, 0, 0); /* Delay flag intentionally unused */
4158 goto retry
; /* Maybe DMAPI app. has made space */
4159 /* else fall through with error from XFS_SEND_DATA */
4164 error0
: /* Cancel bmap, unlock inode, unreserve quota blocks, cancel trans */
4165 xfs_bmap_cancel(&free_list
);
4166 XFS_TRANS_UNRESERVE_QUOTA_NBLKS(mp
, tp
, ip
, qblocks
, 0, quota_flag
);
4168 error1
: /* Just cancel transaction */
4169 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
| XFS_TRANS_ABORT
);
4170 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
4171 goto dmapi_enospc_check
;
4175 * Zero file bytes between startoff and endoff inclusive.
4176 * The iolock is held exclusive and no blocks are buffered.
4179 xfs_zero_remaining_bytes(
4184 xfs_bmbt_irec_t imap
;
4185 xfs_fileoff_t offset_fsb
;
4186 xfs_off_t lastoffset
;
4189 xfs_mount_t
*mp
= ip
->i_mount
;
4193 bp
= xfs_buf_get_noaddr(mp
->m_sb
.sb_blocksize
,
4194 ip
->i_d
.di_flags
& XFS_DIFLAG_REALTIME
?
4195 mp
->m_rtdev_targp
: mp
->m_ddev_targp
);
4197 for (offset
= startoff
; offset
<= endoff
; offset
= lastoffset
+ 1) {
4198 offset_fsb
= XFS_B_TO_FSBT(mp
, offset
);
4200 error
= XFS_BMAPI(mp
, NULL
, &ip
->i_iocore
, offset_fsb
, 1, 0,
4201 NULL
, 0, &imap
, &nimap
, NULL
, NULL
);
4202 if (error
|| nimap
< 1)
4204 ASSERT(imap
.br_blockcount
>= 1);
4205 ASSERT(imap
.br_startoff
== offset_fsb
);
4206 lastoffset
= XFS_FSB_TO_B(mp
, imap
.br_startoff
+ 1) - 1;
4207 if (lastoffset
> endoff
)
4208 lastoffset
= endoff
;
4209 if (imap
.br_startblock
== HOLESTARTBLOCK
)
4211 ASSERT(imap
.br_startblock
!= DELAYSTARTBLOCK
);
4212 if (imap
.br_state
== XFS_EXT_UNWRITTEN
)
4215 XFS_BUF_UNWRITE(bp
);
4217 XFS_BUF_SET_ADDR(bp
, XFS_FSB_TO_DB(ip
, imap
.br_startblock
));
4219 if ((error
= xfs_iowait(bp
))) {
4220 xfs_ioerror_alert("xfs_zero_remaining_bytes(read)",
4221 mp
, bp
, XFS_BUF_ADDR(bp
));
4224 memset(XFS_BUF_PTR(bp
) +
4225 (offset
- XFS_FSB_TO_B(mp
, imap
.br_startoff
)),
4226 0, lastoffset
- offset
+ 1);
4231 if ((error
= xfs_iowait(bp
))) {
4232 xfs_ioerror_alert("xfs_zero_remaining_bytes(write)",
4233 mp
, bp
, XFS_BUF_ADDR(bp
));
4242 * xfs_free_file_space()
4243 * This routine frees disk space for the given file.
4245 * This routine is only called by xfs_change_file_space
4246 * for an UNRESVSP type call.
4254 xfs_free_file_space(
4263 xfs_off_t end_dmi_offset
;
4264 xfs_fileoff_t endoffset_fsb
;
4266 xfs_fsblock_t firstfsb
;
4267 xfs_bmap_free_t free_list
;
4269 xfs_bmbt_irec_t imap
;
4277 xfs_fileoff_t startoffset_fsb
;
4279 int need_iolock
= 1;
4284 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
4286 if ((error
= XFS_QM_DQATTACH(mp
, ip
, 0)))
4290 if (len
<= 0) /* if nothing being freed */
4292 rt
= (ip
->i_d
.di_flags
& XFS_DIFLAG_REALTIME
);
4293 startoffset_fsb
= XFS_B_TO_FSB(mp
, offset
);
4294 end_dmi_offset
= offset
+ len
;
4295 endoffset_fsb
= XFS_B_TO_FSBT(mp
, end_dmi_offset
);
4297 if (offset
< ip
->i_d
.di_size
&&
4298 (attr_flags
& ATTR_DMI
) == 0 &&
4299 DM_EVENT_ENABLED(XFS_MTOVFS(mp
), ip
, DM_EVENT_WRITE
)) {
4300 if (end_dmi_offset
> ip
->i_d
.di_size
)
4301 end_dmi_offset
= ip
->i_d
.di_size
;
4302 error
= XFS_SEND_DATA(mp
, DM_EVENT_WRITE
, vp
,
4303 offset
, end_dmi_offset
- offset
,
4304 AT_DELAY_FLAG(attr_flags
), NULL
);
4309 if (attr_flags
& ATTR_NOLOCK
)
4312 xfs_ilock(ip
, XFS_IOLOCK_EXCL
);
4313 vn_iowait(vp
); /* wait for the completion of any pending DIOs */
4316 rounding
= MAX((__uint8_t
)(1 << mp
->m_sb
.sb_blocklog
),
4318 ilen
= len
+ (offset
& (rounding
- 1));
4319 ioffset
= offset
& ~(rounding
- 1);
4320 if (ilen
& (rounding
- 1))
4321 ilen
= (ilen
+ rounding
) & ~(rounding
- 1);
4323 if (VN_CACHED(vp
) != 0) {
4324 xfs_inval_cached_trace(&ip
->i_iocore
, ioffset
, -1,
4325 ctooff(offtoct(ioffset
)), -1);
4326 bhv_vop_flushinval_pages(vp
, ctooff(offtoct(ioffset
)),
4327 -1, FI_REMAPF_LOCKED
);
4331 * Need to zero the stuff we're not freeing, on disk.
4332 * If its a realtime file & can't use unwritten extents then we
4333 * actually need to zero the extent edges. Otherwise xfs_bunmapi
4334 * will take care of it for us.
4336 if (rt
&& !XFS_SB_VERSION_HASEXTFLGBIT(&mp
->m_sb
)) {
4338 error
= XFS_BMAPI(mp
, NULL
, &ip
->i_iocore
, startoffset_fsb
,
4339 1, 0, NULL
, 0, &imap
, &nimap
, NULL
, NULL
);
4341 goto out_unlock_iolock
;
4342 ASSERT(nimap
== 0 || nimap
== 1);
4343 if (nimap
&& imap
.br_startblock
!= HOLESTARTBLOCK
) {
4346 ASSERT(imap
.br_startblock
!= DELAYSTARTBLOCK
);
4347 block
= imap
.br_startblock
;
4348 mod
= do_div(block
, mp
->m_sb
.sb_rextsize
);
4350 startoffset_fsb
+= mp
->m_sb
.sb_rextsize
- mod
;
4353 error
= XFS_BMAPI(mp
, NULL
, &ip
->i_iocore
, endoffset_fsb
- 1,
4354 1, 0, NULL
, 0, &imap
, &nimap
, NULL
, NULL
);
4356 goto out_unlock_iolock
;
4357 ASSERT(nimap
== 0 || nimap
== 1);
4358 if (nimap
&& imap
.br_startblock
!= HOLESTARTBLOCK
) {
4359 ASSERT(imap
.br_startblock
!= DELAYSTARTBLOCK
);
4361 if (mod
&& (mod
!= mp
->m_sb
.sb_rextsize
))
4362 endoffset_fsb
-= mod
;
4365 if ((done
= (endoffset_fsb
<= startoffset_fsb
)))
4367 * One contiguous piece to clear
4369 error
= xfs_zero_remaining_bytes(ip
, offset
, offset
+ len
- 1);
4372 * Some full blocks, possibly two pieces to clear
4374 if (offset
< XFS_FSB_TO_B(mp
, startoffset_fsb
))
4375 error
= xfs_zero_remaining_bytes(ip
, offset
,
4376 XFS_FSB_TO_B(mp
, startoffset_fsb
) - 1);
4378 XFS_FSB_TO_B(mp
, endoffset_fsb
) < offset
+ len
)
4379 error
= xfs_zero_remaining_bytes(ip
,
4380 XFS_FSB_TO_B(mp
, endoffset_fsb
),
4385 * free file space until done or until there is an error
4387 resblks
= XFS_DIOSTRAT_SPACE_RES(mp
, 0);
4388 while (!error
&& !done
) {
4391 * allocate and setup the transaction
4393 tp
= xfs_trans_alloc(mp
, XFS_TRANS_DIOSTRAT
);
4394 error
= xfs_trans_reserve(tp
,
4396 XFS_WRITE_LOG_RES(mp
),
4398 XFS_TRANS_PERM_LOG_RES
,
4399 XFS_WRITE_LOG_COUNT
);
4402 * check for running out of space
4406 * Free the transaction structure.
4408 ASSERT(error
== ENOSPC
|| XFS_FORCED_SHUTDOWN(mp
));
4409 xfs_trans_cancel(tp
, 0);
4412 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
4413 error
= XFS_TRANS_RESERVE_QUOTA(mp
, tp
,
4414 ip
->i_udquot
, ip
->i_gdquot
, resblks
, 0,
4415 XFS_QMOPT_RES_REGBLKS
);
4419 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
);
4420 xfs_trans_ihold(tp
, ip
);
4423 * issue the bunmapi() call to free the blocks
4425 XFS_BMAP_INIT(&free_list
, &firstfsb
);
4426 error
= XFS_BUNMAPI(mp
, tp
, &ip
->i_iocore
, startoffset_fsb
,
4427 endoffset_fsb
- startoffset_fsb
,
4428 0, 2, &firstfsb
, &free_list
, NULL
, &done
);
4434 * complete the transaction
4436 error
= xfs_bmap_finish(&tp
, &free_list
, firstfsb
, &committed
);
4441 error
= xfs_trans_commit(tp
, XFS_TRANS_RELEASE_LOG_RES
, NULL
);
4442 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
4447 xfs_iunlock(ip
, XFS_IOLOCK_EXCL
);
4451 xfs_bmap_cancel(&free_list
);
4453 xfs_trans_cancel(tp
, XFS_TRANS_RELEASE_LOG_RES
| XFS_TRANS_ABORT
);
4454 xfs_iunlock(ip
, need_iolock
? (XFS_ILOCK_EXCL
| XFS_IOLOCK_EXCL
) :
4460 * xfs_change_file_space()
4461 * This routine allocates or frees disk space for the given file.
4462 * The user specified parameters are checked for alignment and size
4471 xfs_change_file_space(
4485 xfs_off_t startoffset
;
4491 vp
= BHV_TO_VNODE(bdp
);
4492 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
4494 ip
= XFS_BHVTOI(bdp
);
4498 * must be a regular file and have write permission
4501 return XFS_ERROR(EINVAL
);
4503 xfs_ilock(ip
, XFS_ILOCK_SHARED
);
4505 if ((error
= xfs_iaccess(ip
, S_IWUSR
, credp
))) {
4506 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
4510 xfs_iunlock(ip
, XFS_ILOCK_SHARED
);
4512 switch (bf
->l_whence
) {
4513 case 0: /*SEEK_SET*/
4515 case 1: /*SEEK_CUR*/
4516 bf
->l_start
+= offset
;
4518 case 2: /*SEEK_END*/
4519 bf
->l_start
+= ip
->i_d
.di_size
;
4522 return XFS_ERROR(EINVAL
);
4525 llen
= bf
->l_len
> 0 ? bf
->l_len
- 1 : bf
->l_len
;
4527 if ( (bf
->l_start
< 0)
4528 || (bf
->l_start
> XFS_MAXIOFFSET(mp
))
4529 || (bf
->l_start
+ llen
< 0)
4530 || (bf
->l_start
+ llen
> XFS_MAXIOFFSET(mp
)))
4531 return XFS_ERROR(EINVAL
);
4535 startoffset
= bf
->l_start
;
4536 fsize
= ip
->i_d
.di_size
;
4539 * XFS_IOC_RESVSP and XFS_IOC_UNRESVSP will reserve or unreserve
4541 * These calls do NOT zero the data space allocated to the file,
4542 * nor do they change the file size.
4544 * XFS_IOC_ALLOCSP and XFS_IOC_FREESP will allocate and free file
4546 * These calls cause the new file data to be zeroed and the file
4547 * size to be changed.
4549 setprealloc
= clrprealloc
= 0;
4552 case XFS_IOC_RESVSP
:
4553 case XFS_IOC_RESVSP64
:
4554 error
= xfs_alloc_file_space(ip
, startoffset
, bf
->l_len
,
4561 case XFS_IOC_UNRESVSP
:
4562 case XFS_IOC_UNRESVSP64
:
4563 if ((error
= xfs_free_file_space(ip
, startoffset
, bf
->l_len
,
4568 case XFS_IOC_ALLOCSP
:
4569 case XFS_IOC_ALLOCSP64
:
4570 case XFS_IOC_FREESP
:
4571 case XFS_IOC_FREESP64
:
4572 if (startoffset
> fsize
) {
4573 error
= xfs_alloc_file_space(ip
, fsize
,
4574 startoffset
- fsize
, 0, attr_flags
);
4579 va
.va_mask
= XFS_AT_SIZE
;
4580 va
.va_size
= startoffset
;
4582 error
= xfs_setattr(bdp
, &va
, attr_flags
, credp
);
4592 return XFS_ERROR(EINVAL
);
4596 * update the inode timestamp, mode, and prealloc flag bits
4598 tp
= xfs_trans_alloc(mp
, XFS_TRANS_WRITEID
);
4600 if ((error
= xfs_trans_reserve(tp
, 0, XFS_WRITEID_LOG_RES(mp
),
4603 xfs_trans_cancel(tp
, 0);
4607 xfs_ilock(ip
, XFS_ILOCK_EXCL
);
4609 xfs_trans_ijoin(tp
, ip
, XFS_ILOCK_EXCL
);
4610 xfs_trans_ihold(tp
, ip
);
4612 if ((attr_flags
& ATTR_DMI
) == 0) {
4613 ip
->i_d
.di_mode
&= ~S_ISUID
;
4616 * Note that we don't have to worry about mandatory
4617 * file locking being disabled here because we only
4618 * clear the S_ISGID bit if the Group execute bit is
4619 * on, but if it was on then mandatory locking wouldn't
4620 * have been enabled.
4622 if (ip
->i_d
.di_mode
& S_IXGRP
)
4623 ip
->i_d
.di_mode
&= ~S_ISGID
;
4625 xfs_ichgtime(ip
, XFS_ICHGTIME_MOD
| XFS_ICHGTIME_CHG
);
4628 ip
->i_d
.di_flags
|= XFS_DIFLAG_PREALLOC
;
4629 else if (clrprealloc
)
4630 ip
->i_d
.di_flags
&= ~XFS_DIFLAG_PREALLOC
;
4632 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
4633 xfs_trans_set_sync(tp
);
4635 error
= xfs_trans_commit(tp
, 0, NULL
);
4637 xfs_iunlock(ip
, XFS_ILOCK_EXCL
);
4642 bhv_vnodeops_t xfs_vnodeops
= {
4643 BHV_IDENTITY_INIT(VN_BHV_XFS
,VNODE_POSITION_XFS
),
4644 .vop_open
= xfs_open
,
4645 .vop_close
= xfs_close
,
4646 .vop_read
= xfs_read
,
4647 #ifdef HAVE_SENDFILE
4648 .vop_sendfile
= xfs_sendfile
,
4651 .vop_splice_read
= xfs_splice_read
,
4652 .vop_splice_write
= xfs_splice_write
,
4654 .vop_write
= xfs_write
,
4655 .vop_ioctl
= xfs_ioctl
,
4656 .vop_getattr
= xfs_getattr
,
4657 .vop_setattr
= xfs_setattr
,
4658 .vop_access
= xfs_access
,
4659 .vop_lookup
= xfs_lookup
,
4660 .vop_create
= xfs_create
,
4661 .vop_remove
= xfs_remove
,
4662 .vop_link
= xfs_link
,
4663 .vop_rename
= xfs_rename
,
4664 .vop_mkdir
= xfs_mkdir
,
4665 .vop_rmdir
= xfs_rmdir
,
4666 .vop_readdir
= xfs_readdir
,
4667 .vop_symlink
= xfs_symlink
,
4668 .vop_readlink
= xfs_readlink
,
4669 .vop_fsync
= xfs_fsync
,
4670 .vop_inactive
= xfs_inactive
,
4671 .vop_fid2
= xfs_fid2
,
4672 .vop_rwlock
= xfs_rwlock
,
4673 .vop_rwunlock
= xfs_rwunlock
,
4674 .vop_bmap
= xfs_bmap
,
4675 .vop_reclaim
= xfs_reclaim
,
4676 .vop_attr_get
= xfs_attr_get
,
4677 .vop_attr_set
= xfs_attr_set
,
4678 .vop_attr_remove
= xfs_attr_remove
,
4679 .vop_attr_list
= xfs_attr_list
,
4680 .vop_link_removed
= (vop_link_removed_t
)fs_noval
,
4681 .vop_vnode_change
= (vop_vnode_change_t
)fs_noval
,
4682 .vop_tosspages
= fs_tosspages
,
4683 .vop_flushinval_pages
= fs_flushinval_pages
,
4684 .vop_flush_pages
= fs_flush_pages
,
4685 .vop_release
= xfs_release
,
4686 .vop_iflush
= xfs_inode_flush
,