vdo_dump_logical_zone(9)

💅 vdo_dump_logical_zone(9) 💅

okay bestie, welcome to the Kernel API Manual — specifically page vdo_dump_logical_zone(9), and yes it's exactly as niche and iconic as it sounds 🎀

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✨ NAME ✨

vdo_dump_logical_zone — dumps info about a logical zone straight into the log, purely for debugging purposes 🫶 like it's literally just here to help you see what's going on, no cap.

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🌸 SYNOPSIS 🌸

void vdo_dump_logical_zone (const struct logical_zone *zone );

one function, one pointer, zero drama ✨

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🦋 ARGUMENTS 🦋

• zone — the zone you want to dump. that's it, that's the whole argument, she's the main character here 👑

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💀 CONTEXT 💀

the information is dumped in a thread-unsafe fashion 😭

so like, fr fr, do not come for this function from multiple threads at once and expect everything to be cute. it is not giving synchronized. it's giving "you were warned" 🙈

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🔥 SEE ALSO 🔥

the whole friend group, in Kernel file ./drivers/md/dm-vdo/logical-zone.c:

• as_logical_zone(9)
• initialize_zone(9)
• vdo_make_logical_zones(9)
• vdo_free_logical_zones(9)
• check_for_drain_complete(9)
• vdo_resume_logical_zones(9)
• update_oldest_active_generation(9)
• vdo_increment_logical_zone_flush_generation(9)
• vdo_acquire_flush_generation_lock(9)
• notify_flusher(9)
• attempt_generation_complete_notification(9)
• vdo_release_flush_generation_lock(9)

like, the way this is a whole squad 💜 go read them, iykyk 🌈

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and that's the page babes 🎀 big shoutout to the source <pink>./drivers/md/dm-vdo</pink>, dated October 2026 — slay, periodt, go debug something 💅✨