gfs2_size_hint(9)

📦 version 7.3.1, in nixpkgs unstable

💅 gfs2_size_hint(9) 💅

okay so bestie, welcome to the Kernel API Manual — yes, the kernel kernel, we're literally in the big leagues now 🎀 this one's a tiny little function from the gfs2 fam and she's here to spill the tea about write sizes. slay.

✨ NAME ✨

gfs2_size_hint — give a hint to the size of a write request 🫶

like, she's not doing the write, she's just manifesting it for the layers below. main character energy honestly.

🌸 SYNOPSIS 🌸

void gfs2_size_hint (struct file *filep , loff_t offset , size_t size );

no return value, she just does her thing and dips 💅

🦋 ARGUMENTS 🦋

  • filep — the struct file, aka the file we're obsessed with rn 📁
  • offset — the file offset of the write, like where in the file we're writing bestie 📍
  • size — the length of the write, aka how much we're dumping in there ✍️

💖 DESCRIPTION 💖

okay so picture this: we're about to do a write. not doing it yet — about to. and right at that moment, this function records the total write size, literally just keeping the receipts 🧾

why tho? because it needs to provide a suitable hint to the lower layers about how many blocks will be required 👑 it's giving "let the team know how much space we need before we show up" and honestly? iconic. no cap, the lower layers ate.

🔥 SEE ALSO 🔥

kernel file ./fs/gfs2/file.c and the whole friend group:

iykyk 💀

and that's the whole vibe bestie 🌈 this page came straight out of ./fs/gfs2, dated October 2026, and it's literally titled gfs2_size_hint(9) — so go forth, hint those sizes, and slay ✨💜🧚

📦 where this page comes from