__scx_init_task(9)

📦 version 7.3.1, in nixpkgs unstable

💖 __scx_init_task(9) — Kernel API Manual 💖

okay so welcome to the Kernel API Manual corner of the group chat, bestie. Today’s main character is __scx_init_task(9) — the function that initializes a task for a sched. We’re covering every single arg and every reference, because we do not skip details in this house. 💅

✨ NAME ✨

__scx_init_task — Initialize a task for a sched. That’s the name, that’s the vibe, and honestly it’s kind of iconic. 🎀

🌸 SYNOPSIS 🌸

int __scx_init_task (struct scx_sched *sch , struct task_struct *p ,
       struct cgroup *cgrp , bool fork );

🦋 ARGUMENTS 🦋

Here are the four little besties you hand over:

  • sch — the sched you’re initializing p for.
  • p — the task of interest, aka the one we’re looking at.
  • cgrp — the cgroup that p is joining; NULL means p’s current task_group’s cgroup.
  • fork — true if p is being forked.

💜 DESCRIPTION 💜

Pre-commit cgroup migration passes cgrp explicitly as p’s task_group still reflects the source. That’s the plot twist, iykyk. 🫶

Return 0 on success, -errno on failure. So success is the 0 slay, and failure is your -errno moment. 😭

🌈 SEE ALSO 🌈

Here’s the entire squad, with zero skips. The kernel file is ./kernel/sched/ext/ext.c, and then all of these references are right here:

mwah 💋 this page comes from source/version ./kernel/sched/ext, dated October 2026, and the footer energy is still __scx_init_task(9). periodt. 👑

📦 where this page comes from