bio_complete_in_task(9)

✨ NAME ✨

bio_complete_in_task — the helper that makes sure a bio gets completed in preemptible task context. This page is from the Kernel API Manual, and yes bestie, it’s bio_complete_in_task(9) 💅

🎀 SYNOPSIS 🎀

bool bio_complete_in_task (struct bio *bio );

🌸 ARGUMENTS 🌸

• bio — the bio you want to complete. That’s it. That’s the whole argument. slay.

💫 DESCRIPTION 💫

Okay so here’s the vibe check: if you call this from non-task context, it offloads the bio completion to a worker thread and returns true. ✨ iconic ✨

Otherwise — the else branch — it returns false and does nothing. No cap, that’s the whole behavior.

It uses BIO_COMPLETE_IN_TASK as a sentinel. If that sentinel is set, the bio was already deferred and we are running in the worker — so it returns false, letting the callback proceed instead of re-deferring. very mindful, very demure.

👀 SEE ALSO 👀

• Kernel file ./include/linux/bio.h
• bio_advance(9)
• struct folio_iter(9)
• bio_for_each_folio_all(9)
• bio_next_split(9)
• bio_in_atomic(9)
• bio_endio_status(9)
• bio_iov_bounce_nr_vecs(9)
• bio_add_max_vecs(9)
• bio_is_zone_append(9)

Signing off from the footer: source/version ./include/linux, dated October 2026, page bio_complete_in_task(9) — stay preemptible, bestie 🫶💖