bio_is_zone_append(9)

💅 bio_is_zone_append(9)

okay so bestie, welcome to the Kernel API Manual — today's vibe check is one tiny but iconic question: is this bio a zone append bio? 🎀 no cap, that's the whole thing.

✨ NAME ✨

bio_is_zone_append — is this a zone append bio? 👀

🌸 SYNOPSIS 🌸

bool bio_is_zone_append (struct bio *bio );

🫶 ARGUMENTS 🫶

• bio — the bio to check. literally just hand it over and let it look 💅

🔥 DESCRIPTION 🔥

Check if bio is a zone append operation. 🦋

Core block layer code and end_io handlers must use this instead of an open coded REQ_OP_ZONE_APPEND check, because the block layer can rewrite REQ_OP_ZONE_APPEND to REQ_OP_WRITE if it is not natively supported. like, do not roll your own check here, bestie — this is the whole point. periodt 💀

🌈 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_complete_in_task(9)
• bio_endio_status(9)
• bio_iov_bounce_nr_vecs(9)
• bio_add_max_vecs(9)

and that's the tea ☕ — this page comes from ./include/linux, is dated October 2026, and belongs to the Kernel API Manual. mwah 💋✨