include/linux/cache.h

File Facts

System

Linux kernel

Corpus path

include/linux/cache.h

Extension

.h

Size

5481 bytes

Lines

185

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

• uapi/linux/kernel.h
• vdso/cache.h
• asm/cache.h

Detected Declarations

• struct cacheline_padding

Annotated Snippet

struct cacheline_padding {
	char x[0];
} ____cacheline_internodealigned_in_smp;
#define CACHELINE_PADDING(name)		struct cacheline_padding name
#else
#define CACHELINE_PADDING(name)
#endif

#ifdef ARCH_DMA_MINALIGN
#define ARCH_HAS_DMA_MINALIGN
#else
#define ARCH_DMA_MINALIGN __alignof__(unsigned long long)
#endif

#endif /* __LINUX_CACHE_H */

Annotation

• Immediate include surface: `uapi/linux/kernel.h`, `vdso/cache.h`, `asm/cache.h`.
• Detected declarations: `struct cacheline_padding`.
• 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.