vdo_find_block_map_page_pbn
physical_block_number_t vdo_find_block_map_page_pbn(struct block_map *map,
pbn = vdo_find_block_map_page_pbn(block_map, repair->page_to_fetch++);
.pbn = vdo_find_block_map_page_pbn(map, repair->leaf_pages - 1),