bpf_task_from_pid(9)

📦 version 7.3.1, in nixpkgs unstable

💅 bpf_task_from_pid(9) 💅

okay so bestie, welcome to the Kernel API Manual — yes, the actual kernel, no cap, and we're about to talk about one very specific little function. grab a strawberry 🍓 and let's get into it.

✨ NAME ✨

bpf_task_from_pid — finds you a struct task_struct from its pid by looking it up in the root pid namespace idr. iconic behavior honestly.

🚨 the rules, bestie, listen to me: if a task is returned, you gotta either store it in a map, or release it with bpf_task_release(). that's it. that's the whole vibe. do not just let it float around, it's giving leak energy and we don't do that here 💀

🦋 SYNOPSIS 🦋

__bpf_kfunc struct task_struct * bpf_task_from_pid (s32 pid );

🎀 ARGUMENTS 🎀

  • pid — the pid of the task you're looking up. that's literally it, she's simple, she's straightforward, she's main character energy 👑

🌈 SEE ALSO 🌈

like, so many friends, oh my god, the whole group chat showed up:

Kernel file ./kernel/bpf/helpers.c — plus:

okay that's the whole page, you ate that honestly 🫶 this came from ./kernel/bpf and it's dated October 2026 — periodt, that's the sign-off, ily, go release your task structs 💖✨🎀

📦 where this page comes from