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xfs: fix unlock in xfs_bmap_add_attrfork 

xfs_trans_ijoin() activates the inode in a transaction and
also can specify which lock to free when the transaction is
committed or canceled.

xfs_bmap_add_attrfork call locks and adds the lock to the
transaction but also manually removes the lock. Change the
routine to not add the lock to the transaction and manually
remove lock on completion.

While here, clean up the xfs_trans_cancel flags and goto names.

Signed-off-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Mark Tinguely 2013-11-07 15:43:28 -06:00 committed by Ben Myers
parent ec715cacd5
commit 9e3908e342
1 changed files with 22 additions and 18 deletions
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40
fs/xfs/xfs_bmap.c
View File

@ -1137,6 +1137,7 @@ xfs_bmap_add_attrfork(
int committed; /* xaction was committed */
int logflags; /* logging flags */
int error; /* error return value */
int cancel_flags = 0;
ASSERT(XFS_IFORK_Q(ip) == 0);
@ -1147,19 +1148,20 @@ xfs_bmap_add_attrfork(
if (rsvd)
tp->t_flags |= XFS_TRANS_RESERVE;
error = xfs_trans_reserve(tp, &M_RES(mp)->tr_addafork, blks, 0);
if (error)
goto error0;
if (error) {
xfs_trans_cancel(tp, 0);
return error;
}
cancel_flags = XFS_TRANS_RELEASE_LOG_RES;
xfs_ilock(ip, XFS_ILOCK_EXCL);
error = xfs_trans_reserve_quota_nblks(tp, ip, blks, 0, rsvd ?
XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_FORCE_RES :
XFS_QMOPT_RES_REGBLKS);
if (error) {
xfs_iunlock(ip, XFS_ILOCK_EXCL);
xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES);
return error;
}
if (error)
goto trans_cancel;
cancel_flags |= XFS_TRANS_ABORT;
if (XFS_IFORK_Q(ip))
goto error1;
goto trans_cancel;
if (ip->i_d.di_aformat != XFS_DINODE_FMT_EXTENTS) {
/*
* For inodes coming from pre-6.2 filesystems.
@ -1169,7 +1171,7 @@ xfs_bmap_add_attrfork(
}
ASSERT(ip->i_d.di_anextents == 0);
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, 0);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
switch (ip->i_d.di_format) {
@ -1191,7 +1193,7 @@ xfs_bmap_add_attrfork(
default:
ASSERT(0);
error = XFS_ERROR(EINVAL);
goto error1;
goto trans_cancel;
}
ASSERT(ip->i_afp == NULL);
@ -1219,7 +1221,7 @@ xfs_bmap_add_attrfork(
if (logflags)
xfs_trans_log_inode(tp, ip, logflags);
if (error)
goto error2;
goto bmap_cancel;
if (!xfs_sb_version_hasattr(&mp->m_sb) ||
(!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2)) {
__int64_t sbfields = 0;
@ -1242,14 +1244,16 @@ xfs_bmap_add_attrfork(
error = xfs_bmap_finish(&tp, &flist, &committed);
if (error)
goto error2;
return xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
error2:
xfs_bmap_cancel(&flist);
error1:
goto bmap_cancel;
error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
return error;
bmap_cancel:
xfs_bmap_cancel(&flist);
trans_cancel:
xfs_trans_cancel(tp, cancel_flags);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
error0:
xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT);
return error;
}