write_has_finished(9)

🎀 write_has_finished(9) — Kernel API Manual 🎀

okay bestie, welcome to the write_has_finished(9) page 💖 this is the Kernel API Manual entry, and it's lowkey a tiny little “hey cache, that write is done” moment. ✨

✨ NAME ✨

write_has_finished — tells the cache that a write has finished, and yeah, it might have finished with an error. That's the whole vibe. 💅

🦋 SYNOPSIS 🦋

bool write_has_finished (struct page_info *info );

💅 ARGUMENTS 💅

• info — the info structure for the page whose write just completed. like, the page's little “i'm done” receipt 🧾✨

🌈 RETURN 🌈

Returns true if the page write was a discard. yep, that's the return value, no cap. 💖

🔥 SEE ALSO 🔥

Kernel file ./drivers/md/dm-vdo/block-map.c is the home base, and Block map eras(9) plus all these linked pages are in the group chat 🫶:

• 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)
• 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)

this page comes from the source/version at ./drivers/md/dm-vdo, dated October 2026 — mwah, slay, bye bestie 💋💖🌸