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| author | SeongJae Park <sj@kernel.org> | 2022-09-09 20:28:57 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-10-03 14:03:06 -0700 |
| commit | 62f409560eb235ad9c2c9dbe1a3a57801431da5a (patch) | |
| tree | 15cbdc61e35870c5ff3da17c9c3eeaea9fb87994 /mm/damon | |
| parent | 9c950c22833cfd9887da7679534e5c6deb44b008 (diff) | |
| download | linux-62f409560eb235ad9c2c9dbe1a3a57801431da5a.tar.bz2 | |
mm/damon/core-test: test damon_set_regions
Preceding commit fixes a bug in 'damon_set_regions()', which allows holes
in the new monitoring target ranges. This commit adds a kunit test case
for the problem to avoid any regression.
Link: https://lkml.kernel.org/r/20220909202901.57977-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Yun Levi <ppbuk5246@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/damon')
| -rw-r--r-- | mm/damon/core-test.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/mm/damon/core-test.h b/mm/damon/core-test.h index 45db79d28fdc..3db9b7368756 100644 --- a/mm/damon/core-test.h +++ b/mm/damon/core-test.h @@ -267,6 +267,28 @@ static void damon_test_ops_registration(struct kunit *test) KUNIT_EXPECT_EQ(test, damon_register_ops(&ops), -EINVAL); } +static void damon_test_set_regions(struct kunit *test) +{ + struct damon_target *t = damon_new_target(); + struct damon_region *r1 = damon_new_region(4, 16); + struct damon_region *r2 = damon_new_region(24, 32); + struct damon_addr_range range = {.start = 8, .end = 28}; + unsigned long expects[] = {8, 16, 16, 24, 24, 28}; + int expect_idx = 0; + struct damon_region *r; + + damon_add_region(r1, t); + damon_add_region(r2, t); + damon_set_regions(t, &range, 1); + + KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 3); + damon_for_each_region(r, t) { + KUNIT_EXPECT_EQ(test, r->ar.start, expects[expect_idx++]); + KUNIT_EXPECT_EQ(test, r->ar.end, expects[expect_idx++]); + } + damon_destroy_target(t); +} + static struct kunit_case damon_test_cases[] = { KUNIT_CASE(damon_test_target), KUNIT_CASE(damon_test_regions), @@ -276,6 +298,7 @@ static struct kunit_case damon_test_cases[] = { KUNIT_CASE(damon_test_merge_regions_of), KUNIT_CASE(damon_test_split_regions_of), KUNIT_CASE(damon_test_ops_registration), + KUNIT_CASE(damon_test_set_regions), {}, }; |