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| author | Shu Anzai <shu17az@gmail.com> | 2025-12-24 07:21:59 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-01-21 06:24:53 +0300 |
| commit | 2caf45764a4fdb5d35524e364c963bb9e2d07fce (patch) | |
| tree | f1809fa787589cdfccc7c30dc87a49598d8bf2a3 | |
| parent | 65a17a3e609f63c7ea2887096dc232a6c05d02a2 (diff) | |
| download | linux-2caf45764a4fdb5d35524e364c963bb9e2d07fce.tar.xz | |
mm/damon/tests/core-kunit: add test cases for multiple regions in damon_test_split_regions_of()
Extend damon_test_split_regions_of() to verify that it correctly handles
multiple regions with various 'min_sz_region'.
[sj@kernel.org: remove braces in damon_test_split_regions_of()]
Link: https://lkml.kernel.org/r/20251224153125.69194-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20251224042200.2061847-5-shu17az@gmail.com
Signed-off-by: Shu Anzai <shu17az@gmail.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | mm/damon/tests/core-kunit.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/mm/damon/tests/core-kunit.h b/mm/damon/tests/core-kunit.h index 2eb6f41635a8..252ce3e001c8 100644 --- a/mm/damon/tests/core-kunit.h +++ b/mm/damon/tests/core-kunit.h @@ -275,6 +275,9 @@ static void damon_test_split_regions_of(struct kunit *test) { struct damon_target *t; struct damon_region *r; + unsigned long sa[] = {0, 300, 500}; + unsigned long ea[] = {220, 400, 700}; + int i; t = damon_new_target(); if (!t) @@ -301,6 +304,23 @@ static void damon_test_split_regions_of(struct kunit *test) damon_split_regions_of(t, 4, 1); KUNIT_EXPECT_LE(test, damon_nr_regions(t), 4u); damon_free_target(t); + + t = damon_new_target(); + if (!t) + kunit_skip(test, "third target alloc fail"); + for (i = 0; i < ARRAY_SIZE(sa); i++) { + r = damon_new_region(sa[i], ea[i]); + if (!r) { + damon_free_target(t); + kunit_skip(test, "region alloc fail"); + } + damon_add_region(r, t); + } + damon_split_regions_of(t, 4, 5); + KUNIT_EXPECT_LE(test, damon_nr_regions(t), 12u); + damon_for_each_region(r, t) + KUNIT_EXPECT_GE(test, damon_sz_region(r) % 5ul, 0ul); + damon_free_target(t); } static void damon_test_ops_registration(struct kunit *test) |