udf_bmap_internal
error = udf_bmap_internal(node, offset, §or, &max_size);
static int udf_bmap_internal(struct udf_node *, uint32_t, daddr_t *, uint32_t *);
if (udf_bmap_internal(node,
error = udf_bmap_internal(node, a->a_loffset, &lsector, &max_size);