xfs: call xfs_buf_delwri_queue directly

Unify the ways we add buffers to the delwri queue by always calling
xfs_buf_delwri_queue directly.  The xfs_bdwrite functions is removed and
opencoded in its callers, and the two places setting XBF_DELWRI while a
buffer is locked and expecting xfs_buf_unlock to pick it up are converted
to call xfs_buf_delwri_queue directly, too.  Also replace the
XFS_BUF_UNDELAYWRITE macro with direct calls to xfs_buf_delwri_dequeue
to make the explicit queuing/dequeuing more obvious.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 0239a7c7c886..f8fe1c66d420 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -2598,8 +2598,10 @@ xfs_iflush(
 
         if (flags & SYNC_WAIT)
                 error = xfs_bwrite(mp, bp);
-        else
-                xfs_bdwrite(mp, bp);
+        else {
+                xfs_buf_delwri_queue(bp);
+                xfs_buf_relse(bp);
+        }
         return error;
 
 corrupt_out: