vdo_set_compressing(9)

💖 NAME 💖

vdo_set_compressing — turn compression on or off. That's the whole mission, bestie, no cap. 💅

Hey bestie! Welcome to vdo_set_compressing(9) in the Kernel API Manual — your cozy little corner for flipping compression on or off. ✨

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🌸 SYNOPSIS 🌸

bool vdo_set_compressing (struct vdo *vdo , bool enable );

That's the call shape, fr fr: you hand it a vdo and an enable, and that's it. 🫶

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🎀 ARGUMENTS 🎀

• vdo — the vdo. Yep, that's the VDO in question, bestie. 🦋
• enable — whether to enable or disable compression. Literally the on/off vibe. ✨

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💫 RETURN 💫

Whether compression was previously on or off. So you get the before-status, not a whole new saga — it's giving "receipts from the last state." 👑

No cap: the return is literally the previous compression state. Keep that straight, bestie. 🫶

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🔗 SEE ALSO 🔗

The whole friend group, 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_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)

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Cute lil sign-off: this page lives under ./drivers/md/dm-vdo, dated October 2026, and it's vdo_set_compressing(9) all the way. Mwah! 💋✨