update_olde...e_generation(9)

✨ NAME ✨

okay so bestie, welcome to the Kernel API Manual entry for update_oldest_active_generation — the page header tag is update_olde...e_generation(9), and the NAME tea is literally this: Update the oldest active generation. That’s the whole vibe, no cap. The way this is so short is lowkey iconic. 💅

💖 SYNOPSIS 💖

the signature is serving exactly this, so copy it like your group chat depends on it:

bool update_oldest_active_generation (struct logical_zone *zone );

ngl, that bool is giving main character energy here. ✨

🎀 ARGUMENTS 🎀

only one argument, and the original is keeping it iconic and short:

• zone — The zone. 🦋

that’s it. that’s the argument. the manpage said what it said, and we respect the brevity, fr fr.

🔥 RETURN 🔥

true if the oldest active generation has changed. 👑

periodt — that’s the return condition. no extra lore, no invented behavior, just the bool truth. 💖

🌈 SEE ALSO 🌈

cross-reference squad, assemble — go read these next, bestie:

• Kernel file ./drivers/md/dm-vdo/logical-zone.c — and then 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)
• 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)
• vdo_dump_logical_zone(9)

cute sign-off time: this one comes from source/version ./drivers/md/dm-vdo, dated October 2026, and tagged update_olde...e_generation(9) — bye bestie, go be the main character of your own generation update. 🌸🫶