smpboot_regi...ercpu_thread(9)

💜 smpboot_register_percpu_thread(9) 💜

okay bestie, welcome to the Kernel API Manual ✨ — this one's a certified kernel baddie and honestly it's giving "short but iconic." let's get into it 🎀

🌸 NAME 🌸

smpboot_register_percpu_thread — the girl whose whole job is registering a per_cpu thread that's related to hotplug 🫶

✨ SYNOPSIS ✨

int smpboot_register_percpu_thread (struct smp_hotplug_thread *plug_thread);

like, that's the whole vibe. one function, one argument, returns an int. periodt 💅

🦋 ARGUMENTS 🦋

• plug_thread — the hotplug thread descriptor. yeah, that's it, that's the descriptor. she's the blueprint the whole thing runs on 👑

💖 DESCRIPTION 💖

so what does she actually do? literally: creates and starts the threads on all online cpus. all of them. every single one that's currently online. no cap, that's the entire description and honestly? she ate 🔥

ngl this one is refreshingly brief. the manpage doesn't elaborate further, so neither will we — no extra lore, no invented behaviour, we stay factual in this group chat 🧚

⭐ SEE ALSO ⭐

• the kernel file: ./kernel/smpboot.c
• idle_init(9)
• idle_threads_init(9)
• smpboot_thread_fn(9)
• smpboot_unregister_percpu_thread(9) — the un-register counterpart, aka her breakup-era sibling 💀

and that's the whole page!! 🍓 source/version situ: it's from ./kernel, dated October 2026, and the page itself is smpboot_regi...ercpu_thread(9) ✨ mwah, go forth and register those percpu threads bestie 💜🦋🎀