include/linux/sched/smt.h

File Facts

System

Linux kernel

Corpus path

include/linux/sched/smt.h

Extension

.h

Size

343 bytes

Lines

17

Domain

Core OS

Bucket

Core Kernel Interface

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

• linux/static_key.h

Detected Declarations

• function sched_smt_active

Annotated Snippet

#ifndef _LINUX_SCHED_SMT_H
#define _LINUX_SCHED_SMT_H

#include <linux/static_key.h>

extern struct static_key_false sched_smt_present;

static __always_inline bool sched_smt_active(void)
{
	return static_branch_likely(&sched_smt_present);
}

void arch_smt_update(void);

#endif /* _LINUX_SCHED_SMT_H */

Annotation

• Immediate include surface: `linux/static_key.h`.
• Detected declarations: `function sched_smt_active`.
• Atlas domain: Core OS / Core Kernel Interface.
• 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.