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mm/damon/tests/core-kunit: add damon_commit_target_regions() test

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Add a new test for damon_commit_target_regions().

Link: https://lkml.kernel.org/r/20251111184415.141757-12-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Gow <davidgow@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2025-11-11 10:44:10 -08:00 committed by Andrew Morton
parent 299a88f6ec
commit 603f67eb91
1 changed files with 65 additions and 0 deletions
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65
mm/damon/tests/core-kunit.h
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@ -964,6 +964,70 @@ static void damos_test_commit(struct kunit *test)
});
}
static struct damon_target *damon_test_help_setup_target(
unsigned long region_start_end[][2], int nr_regions)
{
struct damon_target *t;
struct damon_region *r;
int i;
t = damon_new_target();
if (!t)
return NULL;
for (i = 0; i < nr_regions; i++) {
r = damon_new_region(region_start_end[i][0],
region_start_end[i][1]);
if (!r) {
damon_free_target(t);
return NULL;
}
damon_add_region(r, t);
}
return t;
}
static void damon_test_commit_target_regions_for(struct kunit *test,
unsigned long dst_start_end[][2], int nr_dst_regions,
unsigned long src_start_end[][2], int nr_src_regions,
unsigned long expect_start_end[][2], int nr_expect_regions)
{
struct damon_target *dst_target, *src_target;
struct damon_region *r;
int i;
dst_target = damon_test_help_setup_target(dst_start_end, nr_dst_regions);
if (!dst_target)
kunit_skip(test, "dst target setup fail");
src_target = damon_test_help_setup_target(src_start_end, nr_src_regions);
if (!src_target) {
damon_free_target(dst_target);
kunit_skip(test, "src target setup fail");
}
damon_commit_target_regions(dst_target, src_target, 1);
i = 0;
damon_for_each_region(r, dst_target) {
KUNIT_EXPECT_EQ(test, r->ar.start, expect_start_end[i][0]);
KUNIT_EXPECT_EQ(test, r->ar.end, expect_start_end[i][1]);
i++;
}
KUNIT_EXPECT_EQ(test, damon_nr_regions(dst_target), nr_expect_regions);
KUNIT_EXPECT_EQ(test, i, nr_expect_regions);
damon_free_target(dst_target);
damon_free_target(src_target);
}
static void damon_test_commit_target_regions(struct kunit *test)
{
damon_test_commit_target_regions_for(test,
(unsigned long[][2]) {{3, 8}, {8, 10}}, 2,
(unsigned long[][2]) {{4, 6}}, 1,
(unsigned long[][2]) {{4, 6}}, 1);
damon_test_commit_target_regions_for(test,
(unsigned long[][2]) {{3, 8}, {8, 10}}, 2,
(unsigned long[][2]) {}, 0,
(unsigned long[][2]) {{3, 8}, {8, 10}}, 2);
}
static void damos_test_filter_out(struct kunit *test)
{
struct damon_target *t;
@ -1170,6 +1234,7 @@ static struct kunit_case damon_test_cases[] = {
KUNIT_CASE(damos_test_commit_dests),
KUNIT_CASE(damos_test_commit_filter),
KUNIT_CASE(damos_test_commit),
KUNIT_CASE(damon_test_commit_target_regions),
KUNIT_CASE(damos_test_filter_out),
KUNIT_CASE(damon_test_feed_loop_next_input),
KUNIT_CASE(damon_test_set_filters_default_reject),