include/linux/pvclock_gtod.h

File Facts

System

Linux kernel

Corpus path

include/linux/pvclock_gtod.h

Extension

.h

Size

548 bytes

Lines

18

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/notifier.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef _PVCLOCK_GTOD_H
#define _PVCLOCK_GTOD_H

#include <linux/notifier.h>

/*
 * The pvclock gtod notifier is called when the system time is updated
 * and is used to keep guest time synchronized with host time.
 *
 * The 'action' parameter in the notifier function is false (0), or
 * true (non-zero) if system time was stepped.
 */
extern int pvclock_gtod_register_notifier(struct notifier_block *nb);
extern int pvclock_gtod_unregister_notifier(struct notifier_block *nb);

#endif /* _PVCLOCK_GTOD_H */

Annotation

• Immediate include surface: `linux/notifier.h`.
• 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.