compute_boundary(9)

💅 compute_boundary(9) 💅

okay bestie, welcome to the Kernel API Manual page for compute_boundary — it's short, it's specific, and it's giving “tiny but important kernel helper.” No cap. 🫶

✨ NAME ✨

• compute_boundary — Compute the number of pages used at each level of the given root's tree. 💖

🌸 SYNOPSIS 🌸

struct boundary compute_boundary (struct block_map *map , root_count_t
       root_index );

🎀 ARGUMENTS 🎀

• map — The block map. 🗺️
• root_index — The tree root index. 🌳

🔥 RETURN 🔥

The list of page counts as a boundary structure. ✨

👑 SEE ALSO 👑

Kernel file: ./drivers/md/dm-vdo/block-map.c 📁

• Block map eras(9)
• initialize_info(9)
• allocate_cache_components(9)
• assert_on_cache_thread(9)
• get_page_state_name(9)
• update_counter(9)
• set_info_state(9)
• find_free_page(9)
• find_page(9)
• select_lru_page(9)
• complete_with_page(9)
• complete_waiter_with_error(9)
• complete_waiter_with_page(9)
• distribute_page_over_waitq(9)
• set_persistent_error(9)
• validate_completed_page(9)
• handle_load_error(9)
• page_is_loaded(9)
• handle_rebuild_read_error(9)
• launch_page_load(9)
• schedule_page_save(9)
• launch_page_save(9)
• completion_needs_page(9)
• allocate_free_page(9)
• discard_a_page(9)
• discard_page_if_needed(9)
• write_has_finished(9)
• handle_page_write_error(9)
• page_is_written_out(9)
• write_pages(9)
• vdo_release_page_completion(9)
• vdo_get_page(9)
• vdo_request_page_write(9)
• vdo_get_cached_page(9)
• vdo_invalidate_page_cache(9)
• get_tree_page_by_index(9)
• in_cyclic_range(9)
• is_not_older(9)
• add_to_dirty_lists(9)
• vdo_find_block_map_slot(9)
• make_forest(9)
• replace_forest(9)
• finish_cursor(9)
• continue_traversal(9)
• finish_traversal_load(9)
• traverse(9)
• launch_cursor(9)
• vdo_traverse_forest(9)
• initialize_block_map_zone(9)
• clear_mapped_location(9)
• set_mapped_location(9)

okay that’s the whole page, bestie — source/version line points to ./drivers/md/dm-vdo, and the date is October 2026. 💖🫶✨