rust/helpers/cpumask.c

File Facts

System

Linux kernel

Corpus path

rust/helpers/cpumask.c

Extension

.c

Size

1595 bytes

Lines

84

Domain

Rust Kernel Layer

Bucket

Rust API Membrane

Inferred role

Rust Kernel Layer: implementation source

Status

source implementation candidate

Why This File Exists

Rust-side wrappers and abstractions around kernel C APIs, ownership contracts, allocation, synchronization, and module integration.

• Rust-side wrappers and abstractions around kernel C APIs, ownership contracts, allocation, synchronization, and module integration.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/cpumask.h

Detected Declarations

• function rust_helper_cpumask_set_cpu
• function rust_helper___cpumask_set_cpu
• function rust_helper_cpumask_clear_cpu
• function rust_helper___cpumask_clear_cpu
• function rust_helper_cpumask_test_cpu
• function rust_helper_cpumask_setall
• function rust_helper_cpumask_empty
• function rust_helper_cpumask_full
• function rust_helper_cpumask_weight
• function rust_helper_cpumask_copy
• function rust_helper_alloc_cpumask_var
• function rust_helper_zalloc_cpumask_var
• function rust_helper_free_cpumask_var

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0

#include <linux/cpumask.h>

__rust_helper
void rust_helper_cpumask_set_cpu(unsigned int cpu, struct cpumask *dstp)
{
	cpumask_set_cpu(cpu, dstp);
}

__rust_helper
void rust_helper___cpumask_set_cpu(unsigned int cpu, struct cpumask *dstp)
{
	__cpumask_set_cpu(cpu, dstp);
}

__rust_helper
void rust_helper_cpumask_clear_cpu(int cpu, struct cpumask *dstp)
{
	cpumask_clear_cpu(cpu, dstp);
}

__rust_helper
void rust_helper___cpumask_clear_cpu(int cpu, struct cpumask *dstp)
{
	__cpumask_clear_cpu(cpu, dstp);
}

__rust_helper
bool rust_helper_cpumask_test_cpu(int cpu, struct cpumask *srcp)
{
	return cpumask_test_cpu(cpu, srcp);
}

__rust_helper
void rust_helper_cpumask_setall(struct cpumask *dstp)
{
	cpumask_setall(dstp);
}

__rust_helper
bool rust_helper_cpumask_empty(struct cpumask *srcp)
{
	return cpumask_empty(srcp);
}

__rust_helper
bool rust_helper_cpumask_full(struct cpumask *srcp)
{
	return cpumask_full(srcp);
}

__rust_helper
unsigned int rust_helper_cpumask_weight(struct cpumask *srcp)
{
	return cpumask_weight(srcp);
}

__rust_helper
void rust_helper_cpumask_copy(struct cpumask *dstp, const struct cpumask *srcp)
{
	cpumask_copy(dstp, srcp);
}

__rust_helper
bool rust_helper_alloc_cpumask_var(cpumask_var_t *mask, gfp_t flags)
{
	return alloc_cpumask_var(mask, flags);
}

__rust_helper
bool rust_helper_zalloc_cpumask_var(cpumask_var_t *mask, gfp_t flags)
{
	return zalloc_cpumask_var(mask, flags);
}

#ifndef CONFIG_CPUMASK_OFFSTACK
__rust_helper
void rust_helper_free_cpumask_var(cpumask_var_t mask)
{
	free_cpumask_var(mask);
}
#endif

Annotation

• Immediate include surface: `linux/cpumask.h`.
• Detected declarations: `function rust_helper_cpumask_set_cpu`, `function rust_helper___cpumask_set_cpu`, `function rust_helper_cpumask_clear_cpu`, `function rust_helper___cpumask_clear_cpu`, `function rust_helper_cpumask_test_cpu`, `function rust_helper_cpumask_setall`, `function rust_helper_cpumask_empty`, `function rust_helper_cpumask_full`, `function rust_helper_cpumask_weight`, `function rust_helper_cpumask_copy`.
• Atlas domain: Rust Kernel Layer / Rust API Membrane.
• 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.