mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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SJ ParkandAndrew Morton
14afcf67dc
My legal and preferred first names are SeongJae and SJ, respectively. I was using the legal name for commits and tags, while using the preferred name for conversations. It sometimes confuses people including myself. Consistently use the preferred name. Together remove copyright notes on files. Those are only confusing for people who are not familiar with the law. Meanwhile, we can infer the information in a better way from git logs and public information. Link: https://lore.kernel.org/20260630013820.143366-1-sj@kernel.org Signed-off-by: SJ Park <sj@kernel.org> Acked-by: Lorenzo Stoakes <ljs@kernel.org> Acked-by: David Hildenbrand (Arm) <david@kernel.org> Cc: Liam R. Howlett <liam@infradead.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vlastimil Babka <vbabka@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
111 lines
2.5 KiB
C
111 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Data Access Monitor Unit Tests
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*/
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#ifdef CONFIG_DAMON_SYSFS_KUNIT_TEST
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#ifndef _DAMON_SYSFS_TEST_H
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#define _DAMON_SYSFS_TEST_H
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#include <kunit/test.h>
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static unsigned int nr_damon_targets(struct damon_ctx *ctx)
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{
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struct damon_target *t;
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unsigned int nr_targets = 0;
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damon_for_each_target(t, ctx)
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nr_targets++;
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return nr_targets;
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}
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static int __damon_sysfs_test_get_any_pid(int min, int max)
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{
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struct pid *pid;
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int i;
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for (i = min; i <= max; i++) {
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pid = find_get_pid(i);
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if (pid) {
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put_pid(pid);
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return i;
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}
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}
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return -1;
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}
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static void damon_sysfs_test_add_targets(struct kunit *test)
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{
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struct damon_sysfs_targets *sysfs_targets;
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struct damon_sysfs_target *sysfs_target;
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struct damon_ctx *ctx;
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sysfs_targets = damon_sysfs_targets_alloc();
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if (!sysfs_targets)
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kunit_skip(test, "sysfs_targets alloc fail");
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sysfs_targets->nr = 1;
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sysfs_targets->targets_arr = kmalloc_objs(*sysfs_targets->targets_arr,
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1);
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if (!sysfs_targets->targets_arr) {
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kfree(sysfs_targets);
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kunit_skip(test, "targets_arr alloc fail");
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}
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sysfs_target = damon_sysfs_target_alloc();
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if (!sysfs_target) {
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kfree(sysfs_targets->targets_arr);
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kfree(sysfs_targets);
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kunit_skip(test, "sysfs_target alloc fail");
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}
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sysfs_target->pid = __damon_sysfs_test_get_any_pid(12, 100);
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sysfs_target->regions = damon_sysfs_regions_alloc();
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if (!sysfs_target->regions) {
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kfree(sysfs_targets->targets_arr);
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kfree(sysfs_targets);
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kfree(sysfs_target);
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kunit_skip(test, "sysfs_regions alloc fail");
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}
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sysfs_targets->targets_arr[0] = sysfs_target;
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ctx = damon_new_ctx();
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if (!ctx) {
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kfree(sysfs_targets->targets_arr);
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kfree(sysfs_targets);
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kfree(sysfs_target->regions);
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kfree(sysfs_target);
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kunit_skip(test, "ctx alloc fail");
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}
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damon_sysfs_add_targets(ctx, sysfs_targets);
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KUNIT_EXPECT_EQ(test, 1u, nr_damon_targets(ctx));
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sysfs_target->pid = __damon_sysfs_test_get_any_pid(
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sysfs_target->pid + 1, 200);
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damon_sysfs_add_targets(ctx, sysfs_targets);
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KUNIT_EXPECT_EQ(test, 2u, nr_damon_targets(ctx));
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damon_destroy_ctx(ctx);
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kfree(sysfs_targets->targets_arr);
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kfree(sysfs_targets);
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kfree(sysfs_target->regions);
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kfree(sysfs_target);
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}
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static struct kunit_case damon_sysfs_test_cases[] = {
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KUNIT_CASE(damon_sysfs_test_add_targets),
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{},
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};
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static struct kunit_suite damon_sysfs_test_suite = {
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.name = "damon-sysfs",
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.test_cases = damon_sysfs_test_cases,
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};
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kunit_test_suite(damon_sysfs_test_suite);
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#endif /* _DAMON_SYSFS_TEST_H */
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#endif /* CONFIG_DAMON_SYSFS_KUNIT_TEST */
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