pte_alloc_one(9)

📦 version 7.3.1, in nixpkgs unstable

💅 pte_alloc_one(9) — like, the Kernel API Manual, but make it make sense ✨

okay so bestie, welcome to section 9 of the Kernel API Manual, where we talk about pte_alloc_one — and ngl, this one's kind of a big deal if you're into page tables (and if you're here, you ARE 💖).

🌸 NAME 🌸

pte_alloc_one — allocate a page for PTE-level user page table 🎀

Like yes, that's literally the whole vibe. You're grabbing memory for a page table. Slay.

🦋 SYNOPSIS 🦋

pgtable_t pte_alloc_one (struct mm_struct *mm );

that's it. that's the whole call. iconic, honestly 💅

✨ ARGUMENTS ✨

  • mm — the mm_struct of the current context 🫶 like, the memory map you're working inside of. that's your main character, your context, your whole situation.

💜 DESCRIPTION 💜

So what does it actually DO? It allocates memory for a page table and a ptdesc, then it runs pagetable_pte_ctor. that's the whole job, no cap 🔥

think of it as: get the memory, set it up, hand it off to the constructor to be ctor'd. very "get ready with me" energy 🎀

⭐ RETURN ⭐

You get back a struct page referencing the ptdesc 💖 — or NULL on error 😭 (yes, check it, please, bestie, i'm begging 🙈).

🌈 SEE ALSO 🌈

Kernel file ./include/asm-generic/pgalloc.h — and then the whole friend group:

like, the whole pte/pmd/pud cinematic universe 🧚 iykyk 💫

okay that's the page!! source is ./include/asm-generic and it's dated October 2026 — so mark your calendar, bestie 🍓 she's living in the future and she's thriving. mwah, go allocate something 💋✨

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