vdo_increme...h_generation(9)

💅 vdo_increment_logical_zone_flush_generation — the kernel API tea 🎀

okay so bestie, we're looking at vdo_increment_logical_zone_flush_generation(9) from the Kernel API Manual, and honestly? she's a lil one-liner icon ✨ Like, the whole page is short but she ate and left no crumbs, so let's get into it 🫶

---

🌸 NAME 🌸

vdo_increment_logical_zone_flush_generation — literally bumps up the flush generation inside a logical zone 💫 no cap, that's the whole vibe.

---

✨ SYNOPSIS ✨

void vdo_increment_logical_zone_flush_generation (struct logical_zone *zone , sequence_number_t expected_generation );

that's it. that's the signature. void return, two args, main character energy 👑

---

🦋 ARGUMENTS 🦋

• zone — the logical zone in question 💖 like, the zone we're doing this to. that's her.
• expected_generation — the flush generation value you're expecting to see before the increment happens 👀 it's the "before" pic, the pre-glow-up snapshot, the value we're checking against before we go up by one 🔥

ngl, that second one is doing a lot of heavy lifting — it's the expected value of the flush generation before the increment, so keep that in mind before you call her 💀

---

🌈 SEE ALSO 🌈

bestie, the rabbit hole is deep and the friend group is huge, so buckle up 🎀 The kernel file lives at ./drivers/md/dm-vdo/logical-zone.c, and she's got a whole squad:

• 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_acquire_flush_generation_lock(9)
• notify_flusher(9)
• attempt_generation_complete_notification(9)
• vdo_release_flush_generation_lock(9)
• vdo_dump_logical_zone(9)

like, go read them, they're all part of the same lore arc 📚 iykyk 💜

---

and that's the page, bestie 🍓 this lil gem comes to you from ./drivers/md/dm-vdo, dated October 2026 — so go forth, increment that generation, and slay 💅✨🧚‍♀️