drivers/md/persistent-data/dm-persistent-data-internal.h

File Facts

System

Linux kernel

Corpus path

drivers/md/persistent-data/dm-persistent-data-internal.h

Extension

.h

Size

467 bytes

Lines

21

Domain

Driver Families

Bucket

drivers/md

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

• dm-block-manager.h

Detected Declarations

• function Copyright

Annotated Snippet

#ifndef _DM_PERSISTENT_DATA_INTERNAL_H
#define _DM_PERSISTENT_DATA_INTERNAL_H

#include "dm-block-manager.h"

static inline unsigned int dm_hash_block(dm_block_t b, unsigned int hash_mask)
{
	const unsigned int BIG_PRIME = 4294967291UL;

	return (((unsigned int) b) * BIG_PRIME) & hash_mask;
}

#endif	/* _PERSISTENT_DATA_INTERNAL_H */

Annotation

• Immediate include surface: `dm-block-manager.h`.
• Detected declarations: `function Copyright`.
• Atlas domain: Driver Families / drivers/md.
• 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.