xfs: sync minor header differences needed by userspace.

Little things like exported functions, __KERNEL__ protections, and
so on that ensure user and kernel shared headers are identical.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

fs/xfs/xfs_bmap.h

@@ -137,9 +137,11 @@ typedef struct xfs_bmalloca {
 	char			conv;	/* overwriting unwritten extents */
 	char			stack_switch;
 	int			flags;
+#ifdef __KERNEL__
 	struct completion	*done;
 	struct work_struct	work;
 	int			result;
+#endif /* __KERNEL__ */
 } xfs_bmalloca_t;
 
 /*