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-rw-r--r--mm/damon/tests/core-kunit.h70
1 files changed, 70 insertions, 0 deletions
diff --git a/mm/damon/tests/core-kunit.h b/mm/damon/tests/core-kunit.h
index be0fea9ee5fc..298c67557fae 100644
--- a/mm/damon/tests/core-kunit.h
+++ b/mm/damon/tests/core-kunit.h
@@ -510,6 +510,75 @@ static void damon_test_feed_loop_next_input(struct kunit *test)
damon_feed_loop_next_input(last_input, 2000));
}
+static void damon_test_set_filters_default_reject(struct kunit *test)
+{
+ struct damos scheme;
+ struct damos_filter *target_filter, *anon_filter;
+
+ INIT_LIST_HEAD(&scheme.filters);
+ INIT_LIST_HEAD(&scheme.ops_filters);
+
+ damos_set_filters_default_reject(&scheme);
+ /*
+ * No filter is installed. Allow by default on both core and ops layer
+ * filtering stages, since there are no filters at all.
+ */
+ KUNIT_EXPECT_EQ(test, scheme.core_filters_default_reject, false);
+ KUNIT_EXPECT_EQ(test, scheme.ops_filters_default_reject, false);
+
+ target_filter = damos_new_filter(DAMOS_FILTER_TYPE_TARGET, true, true);
+ damos_add_filter(&scheme, target_filter);
+ damos_set_filters_default_reject(&scheme);
+ /*
+ * A core-handled allow-filter is installed.
+ * Rejct by default on core layer filtering stage due to the last
+ * core-layer-filter's behavior.
+ * Allow by default on ops layer filtering stage due to the absence of
+ * ops layer filters.
+ */
+ KUNIT_EXPECT_EQ(test, scheme.core_filters_default_reject, true);
+ KUNIT_EXPECT_EQ(test, scheme.ops_filters_default_reject, false);
+
+ target_filter->allow = false;
+ damos_set_filters_default_reject(&scheme);
+ /*
+ * A core-handled reject-filter is installed.
+ * Allow by default on core layer filtering stage due to the last
+ * core-layer-filter's behavior.
+ * Allow by default on ops layer filtering stage due to the absence of
+ * ops layer filters.
+ */
+ KUNIT_EXPECT_EQ(test, scheme.core_filters_default_reject, false);
+ KUNIT_EXPECT_EQ(test, scheme.ops_filters_default_reject, false);
+
+ anon_filter = damos_new_filter(DAMOS_FILTER_TYPE_ANON, true, true);
+ damos_add_filter(&scheme, anon_filter);
+
+ damos_set_filters_default_reject(&scheme);
+ /*
+ * A core-handled reject-filter and ops-handled allow-filter are installed.
+ * Allow by default on core layer filtering stage due to the existence
+ * of the ops-handled filter.
+ * Reject by default on ops layer filtering stage due to the last
+ * ops-layer-filter's behavior.
+ */
+ KUNIT_EXPECT_EQ(test, scheme.core_filters_default_reject, false);
+ KUNIT_EXPECT_EQ(test, scheme.ops_filters_default_reject, true);
+
+ target_filter->allow = true;
+ damos_set_filters_default_reject(&scheme);
+ /*
+ * A core-handled allow-filter and ops-handled allow-filter are
+ * installed.
+ * Allow by default on core layer filtering stage due to the existence
+ * of the ops-handled filter.
+ * Reject by default on ops layer filtering stage due to the last
+ * ops-layer-filter's behavior.
+ */
+ KUNIT_EXPECT_EQ(test, scheme.core_filters_default_reject, false);
+ KUNIT_EXPECT_EQ(test, scheme.ops_filters_default_reject, true);
+}
+
static struct kunit_case damon_test_cases[] = {
KUNIT_CASE(damon_test_target),
KUNIT_CASE(damon_test_regions),
@@ -527,6 +596,7 @@ static struct kunit_case damon_test_cases[] = {
KUNIT_CASE(damos_test_new_filter),
KUNIT_CASE(damos_test_filter_out),
KUNIT_CASE(damon_test_feed_loop_next_input),
+ KUNIT_CASE(damon_test_set_filters_default_reject),
{},
};