mm/damon/tests/sysfs-kunit.h

Source file repositories/reference/linux-study-clean/mm/damon/tests/sysfs-kunit.h

File Facts

System
Linux kernel
Corpus path
mm/damon/tests/sysfs-kunit.h
Extension
.h
Size
2621 bytes
Lines
113
Domain
Core OS
Bucket
Memory Management
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.

Dependency Surface

Detected Declarations

Annotated Snippet

if (pid) {
			put_pid(pid);
			return i;
		}
	}
	return -1;
}

static void damon_sysfs_test_add_targets(struct kunit *test)
{
	struct damon_sysfs_targets *sysfs_targets;
	struct damon_sysfs_target *sysfs_target;
	struct damon_ctx *ctx;

	sysfs_targets = damon_sysfs_targets_alloc();
	if (!sysfs_targets)
		kunit_skip(test, "sysfs_targets alloc fail");
	sysfs_targets->nr = 1;
	sysfs_targets->targets_arr = kmalloc_objs(*sysfs_targets->targets_arr,
						  1);
	if (!sysfs_targets->targets_arr) {
		kfree(sysfs_targets);
		kunit_skip(test, "targets_arr alloc fail");
	}

	sysfs_target = damon_sysfs_target_alloc();
	if (!sysfs_target) {
		kfree(sysfs_targets->targets_arr);
		kfree(sysfs_targets);
		kunit_skip(test, "sysfs_target alloc fail");
	}
	sysfs_target->pid = __damon_sysfs_test_get_any_pid(12, 100);
	sysfs_target->regions = damon_sysfs_regions_alloc();
	if (!sysfs_target->regions) {
		kfree(sysfs_targets->targets_arr);
		kfree(sysfs_targets);
		kfree(sysfs_target);
		kunit_skip(test, "sysfs_regions alloc fail");
	}

	sysfs_targets->targets_arr[0] = sysfs_target;

	ctx = damon_new_ctx();
	if (!ctx) {
		kfree(sysfs_targets->targets_arr);
		kfree(sysfs_targets);
		kfree(sysfs_target->regions);
		kfree(sysfs_target);
		kunit_skip(test, "ctx alloc fail");
	}

	damon_sysfs_add_targets(ctx, sysfs_targets);
	KUNIT_EXPECT_EQ(test, 1u, nr_damon_targets(ctx));

	sysfs_target->pid = __damon_sysfs_test_get_any_pid(
			sysfs_target->pid + 1, 200);
	damon_sysfs_add_targets(ctx, sysfs_targets);
	KUNIT_EXPECT_EQ(test, 2u, nr_damon_targets(ctx));

	damon_destroy_ctx(ctx);
	kfree(sysfs_targets->targets_arr);
	kfree(sysfs_targets);
	kfree(sysfs_target->regions);
	kfree(sysfs_target);
}

static struct kunit_case damon_sysfs_test_cases[] = {
	KUNIT_CASE(damon_sysfs_test_add_targets),
	{},
};

static struct kunit_suite damon_sysfs_test_suite = {
	.name = "damon-sysfs",
	.test_cases = damon_sysfs_test_cases,
};
kunit_test_suite(damon_sysfs_test_suite);

#endif /* _DAMON_SYSFS_TEST_H */

#endif /* CONFIG_DAMON_SYSFS_KUNIT_TEST */

Annotation

Implementation Notes