__blkg_prfill_u64(9)

📦 version 7.3.1, in nixpkgs unstable

💖 __blkg_prfill_u64(9) — the prfill helper for a single u64 value 💖

okay so bestie, welcome to the Kernel API Manual ✨ this one's a tiny little function but she is so useful, i promise. she's living in the kernel's block cgroup corner and honestly? icon behaviour. let's get into it 🫶

✨ NAME ✨

__blkg_prfill_u64 — prfill helper for a single u64 value

like, that's literally her whole job description and she ate 💅

🌸 SYNOPSIS 🌸

u64 __blkg_prfill_u64 (struct seq_file *sf , struct blkg_policy_data *pd
, u64 v );

and yes she returns a u64, we love a girl who gives something back 💖

🎀 ARGUMENTS 🎀

  • sf — the seq_file to print to 📝 this is where the words actually go
  • pd — policy private data of interest 👀 the blkg_policy_data we care about rn
  • v — the value to print 🍓 a plain old u64, nothing fancy, she's just a number

🦋 DESCRIPTION 🦋

Print v to sf for the device associated with pd.

that's it. that's the whole thing. short queen energy 👑 she takes your u64, she finds the device through pd, and she writes it out into your sf. no cap, sometimes the small functions are the main characters 🌈

🔥 SEE ALSO 🔥

okay this is the part where she name-drops her entire friend group, and honestly the list is long, so buckle in bestie 💀

iykyk, the block cgroup girlies stay connected 💜

and that's the page!! 🧚 from ./block, dated October 2026 — that's the source and the version, bestie, so jot it down 💖 mwah, go read some kernel code, ily ⭐🎀

📦 where this page comes from