scx_root_protected(9)

💅 scx_root_protected 💅

okay so bestie, welcome to the scx_root_protected(9) page from the Kernel API Manual — it’s short, it’s iconic, and it’s giving “tiny function, very specific job” energy ✨ grab a lil snack 🍓 and let’s get into it.

🎀 NAME 🎀

scx_root_protected — root sched for contexts that exclude its updates. periodt 💅

⭐ SYNOPSIS ⭐

struct scx_sched * scx_root_protected (void );

🌸 ARGUMENTS 🌸

• void — no arguments, bestie. literally nothing to pass in. zero. nada. the void is the vibe 🫶

🦋 DESCRIPTION 🦋

okay so here’s the tea: both scx_root updates run under the locks checked below, so holding one excludes them. no cap.

scx_root_protected returns the root sched with a plain load. if no scheduler is loaded, it returns NULL. that’s it. that’s the whole function. iconic behavior honestly 🔥

💖 SEE ALSO 💖

the kernel file is literally ./kernel/sched/ext/internal.h — go peek if you’re nosy 👀

• 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_bypass_dsp_enabled(9)
• scx_ops_sanitize_err(9)
• scx_has_subs(9)
• scx_task_sched(9)
• scx_task_sched_rcu(9)
• scx_task_on_sched(9)
• scx_prog_sched(9)
• scx_parent(9)

🌷 okay bye bestie — this page came from ./kernel/sched/ext, dated October 2026, and it’s literally scx_root_protected(9). mwah 💋