blk_add_trace_bio_remap(9)

📦 version 7.3.1, in nixpkgs unstable

💅 blk_add_trace_bio_remap(9)

okay so this is from the Kernel API Manual — yes, the kernel kernel, the big one — and it's literally the page for blk_add_trace_bio_remap. bestie, we're going inside the block layer trace machinery and it's giving main character energy. let's go 🎀

✨ NAME ✨

blk_add_trace_bio_remap — adds a trace for a bio-remap operation. that's it, that's the whole job, and she does it flawlessly 👑

🦋 SYNOPSIS 🦋

void blk_add_trace_bio_remap (void *ignore , struct bio *bio , dev_t dev
, sector_t from );

like, it returns void because it's not here for your return values, it's here for the vibes (and the tracing). no cap.

🌸 ARGUMENTS 🌸

  • ignore — the trace callback data parameter. and honestly? she's not used. iconique behaviour, zero notes 💀 it's literally in the name bestie, we ignore her.
  • bio — the source bio 🌱 the original one, the one doing the travelling.
  • dev — the source device. where the bio's journey started, before everything got remapped.
  • from — the source sector. the exact spot on that source device. keep track of it, it's important 🫶

🔥 DESCRIPTION 🔥

so the way that this works is ✨ adorable ✨ — it's called after a bio is remapped to a different device and/or sector.

that's it. that's the whole description. but think about it: something moved, and this function is the one that makes sure the trace knows about it. no silent remaps in this house. we log it, we record it, we move on. periodt 💅

🌈 SEE ALSO 🌈

the kernel file is ./kernel/trace/blktrace.c and honestly she's the whole moment. go read her. and then go read her friends, because this friend group is unmatched:

iykyk 🧚

ngl the whole thing lives under ./kernel/trace, dated October 2026, and this page is literally titled blk_add_trace_bio_remap(9) — like she said her own name in the group chat. we stan a self-aware queen 💜

sending you off with a kiss, bestie — go trace those remaps 😭💖🎀

📦 where this page comes from