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xfs: don't iunlock unlocked inodes 

Don't iunlock an unlocked inode, which can happen if the parent pointer
scrubber bails out with sc->ip unlocked while trying to grab the parent
directory inode.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
This commit is contained in:
Darrick J. Wong 2018-01-16 18:53:57 -08:00
parent cf1b0b8b1a
commit 638a717489
1 changed files with 2 additions and 1 deletions
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3
fs/xfs/scrub/scrub.c
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@ -159,7 +159,8 @@ xfs_scrub_teardown(
sc->tp = NULL;
}
if (sc->ip) {
xfs_iunlock(sc->ip, sc->ilock_flags);
if (sc->ilock_flags)
xfs_iunlock(sc->ip, sc->ilock_flags);
if (sc->ip != ip_in &&
!xfs_internal_inum(sc->mp, sc->ip->i_ino))
iput(VFS_I(sc->ip));