notify_flusher(9)

💅 notify_flusher(9) — Kernel API Manual 💅

okay so bestie, this is the notify_flusher(9) page from the Kernel API Manual, and we are keeping every single technical crumb exactly where it belongs. No cap. ✨

🌸 NAME 🌸

notify_flusher — notify the flush that at least one generation no longer has active VIOs.

That's the whole assignment. The name literally spills the tea: it's the heads-up to the flush that at least one generation has no active VIOs anymore. 💖

🦋 SYNOPSIS 🦋

void notify_flusher (struct vdo_completion *completion );

Look at her. Iconic signature, zero notes. 🎀

🎀 ARGUMENTS 🎀

• completion — the zone completion. That's the vibe. 🫶

✨ DESCRIPTION ✨

This callback is registered in attempt_generation_complete_notification. That's it — that's the lore, fr fr.

Like, the callback's whole origin story is that registration line, and it's giving "small function, very specific job." 💅

🔥 SEE ALSO 🔥

• 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)
• attempt_generation_complete_notification(9)
• vdo_release_flush_generation_lock(9)
• vdo_dump_logical_zone(9)

💖 cute sign-off: this page is from source/version ./drivers/md/dm-vdo, dated October 2026, and the main character is still notify_flusher(9). mwah. 💖