smack_uring_sqpoll(9)

📦 version 7.3.1, in nixpkgs unstable

💅 NAME 💅

smack_uring_sqpoll — the vibe check that tells you whether an io_uring polling thread is even allowed to exist rn 🌀✨

✨ SYNOPSIS ✨

int smack_uring_sqpoll (void );

🎀 ARGUMENTS 🎀

  • void — bestie it takes literally nothing. no arguments. zero. nada. it's giving self-sufficient queen 👑

🌸 DESCRIPTION 🌸

Okay so picture this: some task out here is trying to spawn a brand new io_uring kernel polling thread, and Smack (the security module, not the snack, unfortunately 🍓) has opinions. This function is the bouncer at the club door 💅 — it checks whether the current task is actually allowed to create that shiny new polling thread, or whether it needs to turn around and go home.

No cap, that's the whole bit: allowed → cool, not allowed → the check will tell you. It's a yes/no gatekeeping moment and honestly? iconic.

🦋 SEE ALSO 🦋

All the Smack siblings live in the kernel file ./security/smack/smack_lsm.c, and here they all are — every single one, no skipping, we don't do that here 🫶:

💀 real talk: that's the whole list. every last one. don't come for me about the length, the manpage said it first 😭

✨ that's a wrap, bestie ✨ this lil page lives under ./security/smack, it's dated October 2026, and it'll always be here for you as smack_uring_sqpoll(9) 🎀🦋💖

📦 where this page comes from