[XFS] enable write barriers by default

SGI-PV: 912426
SGI-Modid: xfs-linux-melb:xfs-kern:201981a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 6116b5b..d8ec746 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -306,6 +306,7 @@
 		xfs_fs_cmn_err(CE_NOTE, mp,
 		  "Disabling barriers, not supported with external log device");
 		mp->m_flags &= ~XFS_MOUNT_BARRIER;
+		return;
 	}
 
 	if (mp->m_ddev_targp->pbr_bdev->bd_disk->queue->ordered ==
@@ -313,6 +314,7 @@
 		xfs_fs_cmn_err(CE_NOTE, mp,
 		  "Disabling barriers, not supported by the underlying device");
 		mp->m_flags &= ~XFS_MOUNT_BARRIER;
+		return;
 	}
 
 	error = xfs_barrier_test(mp);
@@ -320,6 +322,7 @@
 		xfs_fs_cmn_err(CE_NOTE, mp,
 		  "Disabling barriers, trial barrier write failed");
 		mp->m_flags &= ~XFS_MOUNT_BARRIER;
+		return;
 	}
 }