vdo_save_components(9)

vdo_save_components(9) 💅✨

okay so bestie, this is the Kernel API Manual page for vdo_save_components(9), and it’s lowkey iconic. 🫶 No cap: it’s all about the VDO state and saving it off asynchronously.

✨ NAME ✨

vdo_save_components — copy the current state of the VDO to the states struct and save it to the super block asynchronously. It’s giving “save the components, but make it background vibe” 💖

🌸 SYNOPSIS 🌸

void vdo_save_components (struct vdo *vdo , struct vdo_completion
       *parent );

🎀 ARGUMENTS 🎀

• vdo — the vdo whose state is being saved. Yes, that vdo. The one with the state. 💅
• parent — the completion to notify when the save is complete. Like, it gets the little “done bestie” signal. 🔔

🦋 SEE ALSO 🦋

okay, grab a snack, because this list is long but every single ref is here, fr fr:

• Kernel file ./drivers/md/dm-vdo/vdo.c Introduction(9)
• vdo_initialize_device_registry_once(9)
• filter_vdos_locked(9)
• vdo_find_matching(9)
• initialize_thread_config(9)
• get_thread_name(9)
• vdo_make_thread(9)
• register_vdo(9)
• vdo_format(9)
• initialize_vdo(9)
• vdo_make(9)
• free_listeners(9)
• unregister_vdo(9)
• vdo_destroy(9)
• finish_reading_super_block(9)
• handle_super_block_read_error(9)
• vdo_load_super_block(9)
• vdo_get_backing_device(9)
• vdo_get_device_name(9)
• vdo_synchronous_flush(9)
• vdo_get_state(9)
• vdo_set_state(9)
• vdo_get_admin_state(9)
• record_vdo(9)
• continue_parent(9)
• handle_geometry_block_save_error(9)
• vdo_save_geometry_block(9)
• handle_super_block_save_error(9)
• vdo_save_super_block(9)
• vdo_register_read_only_listener(9)
• notify_vdo_of_read_only_mode(9)
• vdo_enable_read_only_entry(9)
• vdo_wait_until_not_entering_read_only_mode(9)
• as_notifier(9)
• finish_entering_read_only_mode(9)
• make_thread_read_only(9)
• vdo_allow_read_only_mode_entry(9)
• vdo_enter_read_only_mode(9)
• vdo_is_read_only(9)
• vdo_in_read_only_mode(9)
• vdo_in_recovery_mode(9)
• vdo_enter_recovery_mode(9)
• complete_synchronous_action(9)
• perform_synchronous_action(9)
• set_compression_callback(9)
• vdo_set_compressing(9)
• vdo_get_compressing(9)
• vdo_get_physical_blocks_allocated(9)
• vdo_get_physical_blocks_overhead(9)
• get_vdo_statistics(9)
• vdo_fetch_statistics_callback(9)
• vdo_fetch_statistics(9)
• vdo_get_callback_thread_id(9)
• vdo_dump_status(9)
• vdo_assert_on_admin_thread(9)
• vdo_assert_on_logical_zone_thread(9)
• vdo_assert_on_physical_zone_thread(9)
• vdo_get_physical_zone(9)

mwah 💋 source/version: ./drivers/md/dm-vdo · date: October 2026 · page: vdo_save_components(9). That’s the footer, bestie — go save those components and slay. 👑✨