include/linux/patchkey.h

File Facts

System

Linux kernel

Corpus path

include/linux/patchkey.h

Extension

.h

Size

757 bytes

Lines

27

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.

Dependency Surface

• asm/byteorder.h
• uapi/linux/patchkey.h

Detected Declarations

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

Annotated Snippet

#ifndef _LINUX_PATCHKEY_H
#define _LINUX_PATCHKEY_H

#  include <asm/byteorder.h>
#include <uapi/linux/patchkey.h>

#  if defined(__BIG_ENDIAN)
#    define _PATCHKEY(id) (0xfd00|id)
#  elif defined(__LITTLE_ENDIAN)
#    define _PATCHKEY(id) ((id<<8)|0x00fd)
#  else
#    error "could not determine byte order"
#  endif
#endif /* _LINUX_PATCHKEY_H */

Annotation

• Immediate include surface: `asm/byteorder.h`, `uapi/linux/patchkey.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.