xfs: only issues a cache flush on unmount if barriers are enabled

Currently we unconditionally issue a flush from xfs_free_buftarg, but
since 2.6.29-rc1 this gives a warning in the style of

	end_request: I/O error, dev vdb, sector 0

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Felix Blyakher <felixb@sgi.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index bc1e64708e2..8483b35821e 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -733,15 +733,15 @@ xfs_close_devices(
 {
         if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) {
                 struct block_device *logdev = mp->m_logdev_targp->bt_bdev;
-                xfs_free_buftarg(mp->m_logdev_targp);
+                xfs_free_buftarg(mp, mp->m_logdev_targp);
                 xfs_blkdev_put(logdev);
         }
         if (mp->m_rtdev_targp) {
                 struct block_device *rtdev = mp->m_rtdev_targp->bt_bdev;
-                xfs_free_buftarg(mp->m_rtdev_targp);
+                xfs_free_buftarg(mp, mp->m_rtdev_targp);
                 xfs_blkdev_put(rtdev);
         }
-        xfs_free_buftarg(mp->m_ddev_targp);
+        xfs_free_buftarg(mp, mp->m_ddev_targp);
 }
 
 /*
@@ -810,9 +810,9 @@ xfs_open_devices(
 
  out_free_rtdev_targ:
         if (mp->m_rtdev_targp)
-                xfs_free_buftarg(mp->m_rtdev_targp);
+                xfs_free_buftarg(mp, mp->m_rtdev_targp);
  out_free_ddev_targ:
-        xfs_free_buftarg(mp->m_ddev_targp);
+        xfs_free_buftarg(mp, mp->m_ddev_targp);
  out_close_rtdev:
         if (rtdev)
                 xfs_blkdev_put(rtdev);