vm_normal_folio(9)

📦 version 7.3.1, in nixpkgs unstable

✨ vm_normal_folio(9) ✨

okay bestie, so this is a page from the Kernel API Manual and it's about the little function vm_normal_folio — she's a whole vibe in mm/memory.c, and honestly? iconic. 💅

🌸 NAME 🌸

vm_normal_folio — literally just getting the struct folio that goes with a PTE 🫶

🦋 SYNOPSIS 🦋

struct folio * vm_normal_folio (struct vm_area_struct *vma , unsigned
long addr , pte_t pte );

like, she takes three things and gives you back a struct folio * — no cap ✨

🎀 ARGUMENTS 🎀

  • vma — the VMA that's mapping the pte. like, where this whole thing lives 🏠
  • addr — the address where the pte is mapped. the actual spot 📍
  • pte — the PTE itself. the main character of this story 👑

💖 DESCRIPTION 💖

so basically: get the struct folio associated with a PTE. that's it, that's the job 💅

if you wanna know the whole lore about what counts as a "normal" mapping vs a "special" mapping, go read __vm_normal_page — she has all the details, iykyk 📖✨

🌈 RETURN 🌈

she returns the struct folio if this is a "normal" mapping 💖

she returns NULL if this is a "special" mapping 💀 like okay noted

⭐ SEE ALSO ⭐

kernel file ./mm/memory.c — and the whole squad, fr fr:

quick reminder bestie: "normal" gets you a folio, "special" gets you NULL — don't be out here dereferencing without a vibe check 🙈

and that's the page!! sourced from ./mm, dated October 2026, and yeah — vm_normal_folio(9) ate and left no crumbs 🍓💜 slay!! 🧚✨

📦 where this page comes from