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authorChristoph Hellwig <hch@infradead.org>2011-09-18 20:47:50 +0000
committerAlex Elder <aelder@sgi.com>2011-10-11 21:15:08 -0500
commit8292d88c5c833fc8b837c3a018fd6d72c35a3231 (patch)
tree69d46f192c1aee634f4bab6cbf6b5891f4383a70 /fs/xfs
parentb10370585349d364ff3c550afa7922e6e21f029d (diff)
xfs: unlock the inode before log force in xfs_fs_nfs_commit_metadata
Only read the LSN we need to push to with the ilock held, and then release it before we do the log force to improve concurrency. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/xfs_export.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/xfs/xfs_export.c b/fs/xfs/xfs_export.c
index 75e5d322e48f..da108977b21f 100644
--- a/fs/xfs/xfs_export.c
+++ b/fs/xfs/xfs_export.c
@@ -229,16 +229,16 @@ xfs_fs_nfs_commit_metadata(
{
struct xfs_inode *ip = XFS_I(inode);
struct xfs_mount *mp = ip->i_mount;
- int error = 0;
+ xfs_lsn_t lsn = 0;
xfs_ilock(ip, XFS_ILOCK_SHARED);
- if (xfs_ipincount(ip)) {
- error = _xfs_log_force_lsn(mp, ip->i_itemp->ili_last_lsn,
- XFS_LOG_SYNC, NULL);
- }
+ if (xfs_ipincount(ip))
+ lsn = ip->i_itemp->ili_last_lsn;
xfs_iunlock(ip, XFS_ILOCK_SHARED);
- return error;
+ if (!lsn)
+ return 0;
+ return _xfs_log_force_lsn(mp, lsn, XFS_LOG_SYNC, NULL);
}
const struct export_operations xfs_export_operations = {