xfs: rework xfs_bmap_free callers to use xfs_defer_ops

Restructure everything that used xfs_bmap_free to use xfs_defer_ops
instead.  For now we'll just remove the old symbols and play some
cpp magic to make it work; in the next patch we'll actually rename
everything.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c
index 08a46c6..20af47b 100644
--- a/fs/xfs/xfs_symlink.c
+++ b/fs/xfs/xfs_symlink.c
@@ -26,6 +26,7 @@
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
+#include "xfs_defer.h"
 #include "xfs_dir2.h"
 #include "xfs_inode.h"
 #include "xfs_ialloc.h"