tools/testing/memblock/linux/mmzone.h

File Facts

System

Linux kernel

Corpus path

tools/testing/memblock/linux/mmzone.h

Extension

.h

Size

949 bytes

Lines

43

Domain

Support Tooling And Documentation

Bucket

tools

Inferred role

Support Tooling And Documentation: implementation source

Status

source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

• Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/atomic.h
• linux/memory_hotplug.h

Detected Declarations

• struct zone
• enum zone_type
• enum migratetype

Annotated Snippet

struct zone {
	atomic_long_t		managed_pages;
};

typedef struct pglist_data {
	struct zone node_zones[MAX_NR_ZONES];

} pg_data_t;

enum migratetype {
	MIGRATE_CMA,
};

#endif

Annotation

• Immediate include surface: `linux/atomic.h`, `linux/memory_hotplug.h`.
• Detected declarations: `struct zone`, `enum zone_type`, `enum migratetype`.
• Atlas domain: Support Tooling And Documentation / tools.
• Implementation status: source implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.