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xfs: fix inode pincount check in fsync 

We need to hold the ilock to check the inode pincount safely.  While
we're at it also remove the check for ip->i_itemp->ili_last_lsn, a
pinned inode always has it set.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
This commit is contained in:
Christoph Hellwig 2010-02-17 19:34:57 +00:00 committed by Alex Elder
parent 77d7a0c2ee
commit 024910cbac
1 changed files with 4 additions and 9 deletions
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13
fs/xfs/linux-2.6/xfs_file.c
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@ -180,17 +180,12 @@ xfs_file_fsync(
* disk yet, the inode will be still be pinned. If it is,
* force the log.
*/
xfs_iunlock(ip, XFS_ILOCK_SHARED);
if (xfs_ipincount(ip)) {
if (ip->i_itemp->ili_last_lsn) {
error = _xfs_log_force_lsn(ip->i_mount,
ip->i_itemp->ili_last_lsn,
XFS_LOG_SYNC, &log_flushed);
} else {
error = _xfs_log_force(ip->i_mount,
XFS_LOG_SYNC, &log_flushed);
}
error = _xfs_log_force_lsn(ip->i_mount,
ip->i_itemp->ili_last_lsn,
XFS_LOG_SYNC, &log_flushed);
}
xfs_iunlock(ip, XFS_ILOCK_SHARED);
}
if (ip->i_mount->m_flags & XFS_MOUNT_BARRIER) {