/* returns 1 if the end block is EXT2_RESERVE_WINDOW_NOT_ALLOCATED.  */
static int rsv_is_empty(struct ext2_reserve_window *rsv)
/* returns 1 if the end block is EXT2_RESERVE_WINDOW_NOT_ALLOCATED.  */
static int rsv_is_empty(struct ext2_reserve_window *rsv)
{
	return (rsv->_rsv_end == EXT2_RESERVE_WINDOW_NOT_ALLOCATED);
}