vdo_fetch_s...ics_callback(9)

💅 NAME 💅

vdo_fetch_statistics_callback — bestie, this is the action that literally populates a vdo_statistics structure, and it does it on the admin thread. That's the whole gig. ✨

(this is a page from the Kernel API Manual, in case ur wondering where u wandered into 🫶)

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⭐ SYNOPSIS ⭐

void vdo_fetch_statistics_callback (struct vdo_completion *completion );

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🎀 ARGUMENTS 🎀

• completion — the completion. that's it, that's the argument 💅

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🦋 DESCRIPTION 🦋

So here's the tea: this callback gets registered inside vdo_fetch_statistics. Like, that's where it gets its whole invite to the function party. no cap. 🎉

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👑 SEE ALSO 👑

okay this list is LONG and honestly iconic for it, so buckle up bestie, we're going through all of these — in order, no skipping, no shortcuts, periodt:

• 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_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_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(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)

like… 58 cross-references?? she ate and left absolutely no crumbs 💀🔥

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✨ that's the whole page bestie, go populate those statistics ✨

🌸 this little darling lives over at ./drivers/md/dm-vdo, dated October 2026 — mwah, signing off 💋🎀