include/linux/linear_range.h

File Facts

System

Linux kernel

Corpus path

include/linux/linear_range.h

Extension

.h

Size

2212 bytes

Lines

65

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/types.h

Detected Declarations

• struct linear_range

Annotated Snippet

struct linear_range {
	unsigned int min;
	unsigned int min_sel;
	unsigned int max_sel;
	unsigned int step;
};

#define LINEAR_RANGE(_min, _min_sel, _max_sel, _step)		\
	{							\
		.min = _min,					\
		.min_sel = _min_sel,				\
		.max_sel = _max_sel,				\
		.step = _step,					\
	}

#define LINEAR_RANGE_IDX(_idx, _min, _min_sel, _max_sel, _step)	\
	[_idx] = LINEAR_RANGE(_min, _min_sel, _max_sel, _step)

unsigned int linear_range_values_in_range(const struct linear_range *r);
unsigned int linear_range_values_in_range_array(const struct linear_range *r,
						int ranges);
unsigned int linear_range_get_max_value(const struct linear_range *r);

int linear_range_get_value(const struct linear_range *r, unsigned int selector,
			   unsigned int *val);
int linear_range_get_value_array(const struct linear_range *r, int ranges,
				 unsigned int selector, unsigned int *val);
int linear_range_get_selector_low(const struct linear_range *r,
				  unsigned int val, unsigned int *selector,
				  bool *found);
int linear_range_get_selector_high(const struct linear_range *r,
				   unsigned int val, unsigned int *selector,
				   bool *found);
void linear_range_get_selector_within(const struct linear_range *r,
				      unsigned int val, unsigned int *selector);
int linear_range_get_selector_low_array(const struct linear_range *r,
					int ranges, unsigned int val,
					unsigned int *selector, bool *found);
int linear_range_get_selector_high_array(const struct linear_range *r,
					 int ranges, unsigned int val,
					 unsigned int *selector, bool *found);

#endif

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct linear_range`.
• 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.