launch_page_save(9)

💅 NAME 💅

okay so bestie, this is launch_page_save(9) from the Kernel API Manual — yes, we are being academic, but make it cute ✨. What it does: add a page to the outgoing pages waiting to be saved, and then start saving pages if another save is not in progress. That’s the whole assignment 🫶. It’s giving “queue the page, then hit go if nobody else is already saving,” no cap.

✨ SYNOPSIS ✨

void launch_page_save (struct page_info *info );

🎀 ARGUMENTS 🎀

• info — the page info to save. literally the page-info thing that’s getting saved, periodt 💖

🌈 SEE ALSO 🌈

The kernel file ./drivers/md/dm-vdo/block-map.c and Block map eras(9) are in the group chat too, along with this whole iconique cast:

• 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)
• 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)
• compute_boundary(9)
• vdo_traverse_forest(9)
• initialize_block_map_zone(9)
• clear_mapped_location(9)
• set_mapped_location(9)

xoxo, bestie 💖 this page is serving source ./drivers/md/dm-vdo, dated October 2026. slay 🎀