pcpu_chunk_addr_search(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 pcpu_chunk_addr_search — like, the manual page 💅

okay so bestie, this one is from the Kernel API Manual (yes, that's the manual name, we're being fancy today ✨). Let me walk you through it, no cap.

✨ NAME ✨

pcpu_chunk_addr_search — figure out which chunk a given address lives in 🎀

🦋 SYNOPSIS 🦋

struct pcpu_chunk * pcpu_chunk_addr_search (void *addr );

💖 ARGUMENTS 💖

  • addr — the address we're tryna find the chunk for, literally. Give it the address, it finds the chunk. That's the whole vibe. 🫶

🌸 DESCRIPTION 🌸

So this is an internal function, bestie — it's not out here doing main character public-API things. It handles all but static allocations, periodt. 💅

And listen, the important caveat: static percpu address values should never be passed into the allocator. Like, ever. Don't do it. That's the rule. 🙈

⭐ RETURN ⭐

It returns the address of the found chunk. That's it, that's the whole return value. Iconic and simple. 👑

🔥 SEE ALSO 🔥

The kernel file is ./mm/percpu.c — and here's the whole friend group, all of them, no one left out:

okay that's the whole page 🧚 this little cutie comes from the ./mm source tree, dated October 2026, and it's filed under pcpu_chunk_addr_search(9) — slay, go read the source bestie 💜💖

📦 where this page comes from