scx_task_sched_rcu(9)

💫 scx_task_sched_rcu(9) — the Kernel API Manual, bestie edition 💫

Okay so picture this: you're deep in the kernel API manual, section 9, and you just need to know which scheduler is running a task. That's it. That's the whole vibe. Welcome to scx_task_sched_rcu, baby 🎀

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🌸 NAME 🌸

scx_task_sched_rcu — find the scx_sched that's scheduling a task, no cap 👑

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✨ SYNOPSIS ✨

struct scx_sched * scx_task_sched_rcu (const struct task_struct *p );

Like, one function, one job. She's focused. She's iconic. 💅

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🦋 ARGUMENTS 🦋

• p — the task of interest 🫶 like yes, this task right here, this is the one we care about

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💖 DESCRIPTION 💖

Returns p's scheduler instance. Simple as that, fr fr.

The returned scx_sched is RCU protected ⚡ — soooo don't go freeing it or being weird with it outside an RCU read-side critical section, okay? Respect the protection. It's giving "handle with care" energy 🙈

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🧚 SEE ALSO 🧚

Kernel file ./kernel/sched/ext/internal.h — and honestly the whole friend group, they all show up together:

• scx_add_event(9)
• __scx_add_event(9)
• struct scx_enable_args(9)
• struct sched_ext_ops(9)
• struct sched_ext_ops_cid(9)
• scx_arena_to_kaddr(9)
• scx_kaddr_to_arena(9)
• DEFINE_SCX_COMPAT_MARKER(9)
• scx_root_protected_live(9)
• scx_root_protected(9)
• scx_bypass_dsp_enabled(9)
• scx_ops_sanitize_err(9)
• scx_has_subs(9)
• scx_task_sched(9)
• scx_task_on_sched(9)
• scx_prog_sched(9)
• scx_parent(9)

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🫶 that's the whole page, bestie — go forth and schedule responsibly ✨

And that's a wrap, cuties 💜 this one lives in ./kernel/sched/ext, dated October 2026, and the manual name on the tin is scx_task_sched_rcu(9). slay, bye 🎀🌈⭐