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| author | SeongJae Park <sj@kernel.org> | 2023-06-15 20:33:22 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-06-20 01:19:35 +0200 |
| commit | aa13779be6b7d1ce0e6ba96b400b351de6f1a326 (patch) | |
| tree | 9ca673e64627e0e24f68c5434d774540688cfda4 /mm | |
| parent | mm: remove is_longterm_pinnable_page() and reimplement folio_is_longterm_pinn... (diff) | |
| download | linux-aa13779be6b7d1ce0e6ba96b400b351de6f1a326.tar.xz linux-aa13779be6b7d1ce0e6ba96b400b351de6f1a326.zip | |
mm/damon/core-test: add a test for damon_set_attrs()
Commit 5ff6e2fff88e ("mm/damon/core: fix divide error in
damon_nr_accesses_to_accesses_bp()") fixed a bug by adding arguments
validation in damon_set_attrs(). Add a unit test for the added validation
to ensure the bug cannot occur again.
Link: https://lkml.kernel.org/r/20230615183323.87561-1-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/damon/core-test.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/mm/damon/core-test.h b/mm/damon/core-test.h index fae64d32b925..c11210124344 100644 --- a/mm/damon/core-test.h +++ b/mm/damon/core-test.h @@ -318,6 +318,29 @@ static void damon_test_update_monitoring_result(struct kunit *test) KUNIT_EXPECT_EQ(test, r->age, 20); } +static void damon_test_set_attrs(struct kunit *test) +{ + struct damon_ctx ctx; + struct damon_attrs valid_attrs = { + .min_nr_regions = 10, .max_nr_regions = 1000, + .sample_interval = 5000, .aggr_interval = 100000,}; + struct damon_attrs invalid_attrs; + + KUNIT_EXPECT_EQ(test, damon_set_attrs(&ctx, &valid_attrs), 0); + + invalid_attrs = valid_attrs; + invalid_attrs.min_nr_regions = 1; + KUNIT_EXPECT_EQ(test, damon_set_attrs(&ctx, &invalid_attrs), -EINVAL); + + invalid_attrs = valid_attrs; + invalid_attrs.max_nr_regions = 9; + KUNIT_EXPECT_EQ(test, damon_set_attrs(&ctx, &invalid_attrs), -EINVAL); + + invalid_attrs = valid_attrs; + invalid_attrs.aggr_interval = 4999; + KUNIT_EXPECT_EQ(test, damon_set_attrs(&ctx, &invalid_attrs), -EINVAL); +} + static struct kunit_case damon_test_cases[] = { KUNIT_CASE(damon_test_target), KUNIT_CASE(damon_test_regions), @@ -329,6 +352,7 @@ static struct kunit_case damon_test_cases[] = { KUNIT_CASE(damon_test_ops_registration), KUNIT_CASE(damon_test_set_regions), KUNIT_CASE(damon_test_update_monitoring_result), + KUNIT_CASE(damon_test_set_attrs), {}, }; |