kernel/sched/ext_idle.h

File Facts

System

Linux kernel

Corpus path

kernel/sched/ext_idle.h

Extension

.h

Size

900 bytes

Lines

28

Domain

Core OS

Bucket

Scheduler, Processes, Timers, Sync, And Syscalls

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• struct sched_ext_ops

Annotated Snippet

#ifndef _KERNEL_SCHED_EXT_IDLE_H
#define _KERNEL_SCHED_EXT_IDLE_H

struct sched_ext_ops;

extern struct btf_id_set8 scx_kfunc_ids_idle;
extern struct btf_id_set8 scx_kfunc_ids_select_cpu;

void scx_idle_update_selcpu_topology(struct sched_ext_ops *ops);
void scx_idle_init_masks(void);

s32 scx_select_cpu_dfl(struct task_struct *p, s32 prev_cpu, u64 wake_flags,
		       const struct cpumask *cpus_allowed, u64 flags);
void scx_idle_enable(struct sched_ext_ops *ops);
void scx_idle_disable(void);
int scx_idle_init(void);

#endif /* _KERNEL_SCHED_EXT_IDLE_H */

Annotation

• Detected declarations: `struct sched_ext_ops`.
• Atlas domain: Core OS / Scheduler, Processes, Timers, Sync, And Syscalls.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.