samples/kmemleak/kmemleak-test.c

File Facts

System

Linux kernel

Corpus path

samples/kmemleak/kmemleak-test.c

Extension

.c

Size

2818 bytes

Lines

103

Domain

Support Tooling And Documentation

Bucket

samples

Inferred role

Support Tooling And Documentation: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/init.h
• linux/kernel.h
• linux/module.h
• linux/slab.h
• linux/vmalloc.h
• linux/list.h
• linux/percpu.h
• linux/fdtable.h
• linux/kmemleak.h

Detected Declarations

• struct test_node
• function kmemleak_test_init
• function for_each_possible_cpu
• function kmemleak_test_exit
• module init kmemleak_test_init

Annotated Snippet

module_init(kmemleak_test_init);

static void __exit kmemleak_test_exit(void)
{
	struct test_node *elem, *tmp;

	/*
	 * Remove the list elements without actually freeing the
	 * memory.
	 */
	list_for_each_entry_safe(elem, tmp, &test_list, list)
		list_del(&elem->list);
}
module_exit(kmemleak_test_exit);

MODULE_DESCRIPTION("Sample module to leak memory for kmemleak testing");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/init.h`, `linux/kernel.h`, `linux/module.h`, `linux/slab.h`, `linux/vmalloc.h`, `linux/list.h`, `linux/percpu.h`, `linux/fdtable.h`.
• Detected declarations: `struct test_node`, `function kmemleak_test_init`, `function for_each_possible_cpu`, `function kmemleak_test_exit`, `module init kmemleak_test_init`.
• Atlas domain: Support Tooling And Documentation / samples.
• Implementation status: integration 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.