pcpu_addr_in_chunk(9)

📦 version 7.3.1, in nixpkgs unstable

💅 pcpu_addr_in_chunk — the "is this even yours??" check

okay so quick vibe check: this is a page from the Kernel API Manual (section 9, kernel internals bestie 🧚) and honestly it's a tiny little function with one job and it slays at that job. Let's get into it ✨

🌸 NAME 🌸

pcpu_addr_in_chunk — literally just checks if the address is served from this chunk 💖

like, that's it. that's the whole personality. no cap.

🦋 SYNOPSIS 🦋

bool pcpu_addr_in_chunk (struct pcpu_chunk *chunk , void *addr );

yes she returns a bool and yes she takes two args. we love a simple signature, periodt 👑

🎀 ARGUMENTS 🎀

  • chunk — the chunk of interest 🫶 like, the chunk you're being nosy about. the one you're asking "is this yours??"
  • addr — a percpu address 💫 the address in question, the main character of this whole situation

⭐ RETURN ⭐

Returns True if the address is served from this chunk. 🔥 that's the whole answer. yes or no. iconic.

ngl if it's not from this chunk you get False — the original only spells out the true case, so don't come for me 🙈

👑 SEE ALSO 👑

This part is long bestie, buckle up. Every single one of these is part of the percpu saga, and the kernel file lives at ./mm/percpu.c 🍓:

that's the whole percpu friend group fr fr 💀 they all show up together, iykyk.

🌈 the cute sign-off 🌈

this little baddie lives in ./mm 💜 and the page is dated October 2026 🎀 so yeah, future vibes, we love to see it. go forth and check your addresses bestie, you got this 💅✨

📦 where this page comes from