xa_pointer_tag(9)

📦 version 7.3.1, in nixpkgs unstable

💅 xa_pointer_tag — get the tag stored in an XArray entry

okay so this is xa_pointer_tag(9) from the Kernel API Manual and honestly bestie it's a short one, it's giving "small but mighty" ✨

🌸 SYNOPSIS 🌸

unsigned int xa_pointer_tag (void *entry );

yeah that's the whole thing. one argument, one return, zero drama 🎀

🦋 ARGUMENTS 🦋

  • entry — an XArray entry. that's it. that's the whole parameter. hand it over and we'll tell you what tag it's wearing 👑

💖 DESCRIPTION 💖

so, picture this: you already put a tagged pointer into the XArray (you icon, you 🌟), and now you're standing there like "wait… which tag did I use again??" 😭

that's the moment. call this function, and it will get the tag of that pointer for you. no cap, that is literally the entire job. not me being obsessed with a function that does one tiny thing perfectly 💅

🌈 CONTEXT 🌈

Any context. yes bestie, ANY. sleep, spinlock, interrupt, wherever you're at, this one does not care. zero vibe-check anxiety 🫶

⭐ RETURN ⭐

a tag. that's the return. a tag. 🎀 (and yes, that is all the original says, so I'm not gonna invent extra lore for you, iykyk)

👑 SEE ALSO 👑

it's giving very social butterfly, this page. it links the whole squad, and the kernel file lives at ./include/linux/xarray.h:

like, ok, tag yourself, you're xa_untag_pointer(9) 🦋

that's the whole page bestie, go get your tag 💜

signed off with love from ./include/linux — October 2026 — xa_pointer_tag(9) 🎀✨

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