flush_packer_callback(9)

💖 NAME 💖

flush_packer_callback — Flush the packer. 💅

and yes bestie, we're in the Kernel API Manual — this is the flush_packer_callback(9) page, and it's literally all about flushing the packer. no cap. ✨

✨ SYNOPSIS ✨

void flush_packer_callback (struct vdo_completion *completion );

🎀 ARGUMENTS 🎀

• completion — the flusher completion. that's the one and only argument, bestie 🫶

🦋 DESCRIPTION 🦋

okay so the packer gets flushed now that all of the logical and physical zones have been notified of the new flush request. it's giving "notifications are done, time to flush" energy ✨

This callback is registered in increment_generation. periodt. 💅

🌈 SEE ALSO 🌈

the whole friend group lives around Kernel file ./drivers/md/dm-vdo/flush.c:

• assert_on_flusher_thread(9)
• as_flusher(9)
• completion_as_vdo_flush(9)
• vdo_waiter_as_flush(9)
• vdo_make_flusher(9)
• vdo_free_flusher(9)
• vdo_get_flusher_thread_id(9)
• finish_notification(9)
• increment_generation(9)
• notify_flush(9)
• flush_vdo(9)
• check_for_drain_complete(9)
• vdo_complete_flushes(9)
• vdo_dump_flusher(9)
• initialize_flush(9)
• vdo_launch_flush(9)
• release_flush(9)
• vdo_complete_flush_callback(9)
• select_bio_queue(9)
• vdo_complete_flush(9)
• vdo_drain_flusher(9)
• vdo_resume_flusher(9)

xoxo, this cutie comes from the source path ./drivers/md/dm-vdo, dated October 2026, and it's still literally flush_packer_callback(9) 🫶💜