[XFS] remove a dead codepath in xfs_syncsub

SGI Modid: 2.5.x-xfs:slinx:138037a

fs/xfs/xfs_vfsops.c

@@ -873,7 +873,6 @@ xfs_syncsub(
 	boolean_t	mount_locked;
 	boolean_t	vnode_refed;
 	int		preempt;
-	int		do_mmap_flush;
 	xfs_dinode_t	*dip;
 	xfs_buf_log_item_t	*bip;
 	xfs_iptr_t	*ipointer;
@@ -944,8 +943,6 @@ xfs_syncsub(
 		fflag = XFS_B_DELWRI;
 	if (flags & SYNC_WAIT)
 		fflag = 0;		/* synchronous overrides all */
-	do_mmap_flush = (flags & (SYNC_DELWRI|SYNC_BDFLUSH)) !=
-						(SYNC_DELWRI|SYNC_BDFLUSH);
 
 	base_lock_flags = XFS_ILOCK_SHARED;
 	if (flags & (SYNC_DELWRI | SYNC_CLOSE)) {
@@ -1177,12 +1174,8 @@ xfs_syncsub(
 				 * across calls to the buffer cache.
 				 */
 				xfs_iunlock(ip, XFS_ILOCK_SHARED);
-				if (do_mmap_flush) {
 				VOP_FLUSH_PAGES(vp, (xfs_off_t)0, -1,
 							fflag, FI_NONE, error);
-				} else {
-					filemap_fdatawrite(LINVFS_GET_IP(vp)->i_mapping);
-				}
 				xfs_ilock(ip, XFS_ILOCK_SHARED);
 			}