udf_late_allocate_buf
udf_late_allocate_buf(ump, buf, lmapping, node_ad_cpy, &vpart_num);
udf_late_allocate_buf(ump, buf, lmapping, node_ad_cpy, &vpart_num);
udf_late_allocate_buf(ump, buf, lmapping, node_ad_cpy, &vpart_num);
void udf_late_allocate_buf(struct udf_mount *ump, struct buf *buf, uint64_t *lmapping, struct long_ad *node_ad_cpy, uint16_t *vpart_num);