vdo_in_read_only_mode(9)

🌸 NAME 🌸

Bestie, this is vdo_in_read_only_mode(9) from the Kernel API Manual. It’s the function that checks whether a vdo is in read-only mode. That’s the whole plot. 💅

✨ SYNOPSIS ✨

bool vdo_in_read_only_mode (const struct vdo *vdo );

No cap, that’s the exact signature. Slay. 🫶

🎀 ARGUMENTS 🎀

• vdo — the vdo to query. This is the one getting the read-only vibe check, bestie. 🦋

🔥 RETURN 🔥

It returns True if the vdo is in read-only mode. Periodt. 💖

🌈 SEE ALSO 🌈

Okay, the friend group is enormous. Here’s everyone linked from this page, in order, no gatekeeping:

• Kernel file ./drivers/md/dm-vdo/vdo.c and 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_save_components(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_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) 🌟

That’s the page, bestie. Its source/version is ./drivers/md/dm-vdo, and it’s dated October 2026. Mwah 💋✨