__bio_add_page(9)

📦 version 7.3.1, in nixpkgs unstable

✨ __bio_add_page — Kernel API Manual energy ✨

okay so bestie, buckle up, because this one is a tiny little function with a huge main character energy moment in the block layer 💅 this is your friendly rundown from the Kernel API Manual, and yes we're gonna get through every single line of it together 🫶

🌸 NAME 🌸

__bio_add_page — add page(s) to a bio in a new segment 🎀

like, that's literally the whole vibe: page(s), bio, new segment, slay ✨

🦋 SYNOPSIS 🦋

void __bio_add_page (struct bio *bio , struct page *page , unsigned int
len , unsigned int off );

it returns void, so don't go looking for a return value, there isn't one, periodt 💀

💜 ARGUMENTS 💜

  • bio — the destination bio, aka where the data is going 🎯 this is the main character
  • page — the start page to add 📄
  • len — the length of the data to add; heads up, it may cross pages 🦋
  • off — the offset of the data relative to page; this one may cross pages too 🌈

🔥 DESCRIPTION 🔥

okay so what it actually does: it adds the data at page + off to bio as a new bvec ✨

⚠️ and here's the thing, bestie, listen to me — the caller must ensure that bio has space for another bvec. that's on you, not on the function. it's giving "trust and verify" but mostly "verify" 💀 do the vibe check before you call it, fr fr.

🌟 SEE ALSO 🌟

the whole block-layer friend group showed up, iykyk 👑

Kernel file ./block/bio.c and, in no particular order because they're all iconic:

and that's the page, bestie 🎀 huge shoutout to the source ./block and the October 2026 version of this doc — they ate and left no crumbs 💅✨ see u in the next manpage 🌸🦋

📦 where this page comes from