bio_iov_bounce_nr_vecs(9)

🌟 NAME 🌟

bio_iov_bounce_nr_vecs — calculate number of bvecs for a bounce bio. This page is bio_iov_bounce_nr_vecs(9) from the Kernel API Manual, bestie 💅

🌸 SYNOPSIS 🌸

unsigned short bio_iov_bounce_nr_vecs (struct iov_iter *iter , blk_opf_t op );

🎀 ARGUMENTS 🎀

• iter — iter to bounce from 🦋
• op — REQ_OP_* for the bio ⭐

🦋 DESCRIPTION 🦋

Calculates how many bvecs are needed for the next bio to bounce from/to iter. That's the whole vibe, no cap 💖

💖 SEE ALSO 💖

Kernel file ./include/linux/bio.h is the home base, and here's the related lore:

• 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_add_max_vecs(9)
• bio_is_zone_append(9)

With all the love, this page lives under ./include/linux, it's dated October 2026, and the footer bestie is bio_iov_bounce_nr_vecs(9) 💖🫶✨