write_pages(9)

🎀 write_pages(9) 🎀

okay so we’re in the Kernel API Manual, bestie, and this page is literally about one callback: write_pages. the manual name is folded in right here so you don’t have to squint at a header line, and yes, we’re keeping all the details. no cap. 💖

✨ NAME ✨

write_pages — Write the batch of pages which were covered by the layer flush which just completed.

🦋 SYNOPSIS 🦋

void write_pages (struct vdo_completion *flush_completion );

🌸 ARGUMENTS 🌸

• flush_completion — The flush vio.

💅 DESCRIPTION 💅

This callback is registered in save_pages. that’s the whole description, fr fr — short and iconic. ✨

🌈 SEE ALSO 🌈

Kernel file ./drivers/md/dm-vdo/block-map.c is where the whole squad lives, and the page says hiii to all of these: 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), 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), compute_boundary(9), vdo_traverse_forest(9), initialize_block_map_zone(9), clear_mapped_location(9), set_mapped_location(9).

k bye bestie 🫶 this page comes from ./drivers/md/dm-vdo and carries the October 2026 date — that’s the footer vibe, and we are done 💖✨