vdo_format_block_map_page
vdo_format_block_map_page(page, nonce, pbn, false);
vdo_format_block_map_page(tree_page->page_buffer,
vdo_format_block_map_page(page_ptr->page_buffer,
vdo_format_block_map_page(page, nonce, info->pbn, false);
struct block_map_page *vdo_format_block_map_page(void *buffer, nonce_t nonce,