linux-kernel - [PATCH v2 2/5] mm/damon/tests/core-kunit: verify the 'age' and 'nr_accesses_bp' fields in damon_test_merge

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Message-ID: <20251224042200.2061847-3-shu17az@gmail.com>
Date: Wed, 24 Dec 2025 04:21:57 +0000
From: Shu Anzai <shu17az@...il.com>
To: SeongJae Park <sj@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
	damon@...ts.linux.dev,
	linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Shu Anzai <shu17az@...il.com>
Subject: [PATCH v2 2/5] mm/damon/tests/core-kunit: verify the 'age' and 'nr_accesses_bp' fields in damon_test_merge_two()

Extend damon_test_merge_two() to verify the 'age' and 
'nr_accesses_bp' fields.

Signed-off-by: Shu Anzai <shu17az@...il.com>
---
 mm/damon/tests/core-kunit.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/mm/damon/tests/core-kunit.h b/mm/damon/tests/core-kunit.h
index 88ec046f4942..6e301113e103 100644
--- a/mm/damon/tests/core-kunit.h
+++ b/mm/damon/tests/core-kunit.h
@@ -192,6 +192,7 @@ static void damon_test_merge_two(struct kunit *test)
 	}
 	r->nr_accesses = 10;
 	r->nr_accesses_bp = 100000;
+	r->age = 9;
 	damon_add_region(r, t);
 	r2 = damon_new_region(100, 300);
 	if (!r2) {
@@ -200,12 +201,15 @@ static void damon_test_merge_two(struct kunit *test)
 	}
 	r2->nr_accesses = 20;
 	r2->nr_accesses_bp = 200000;
+	r2->age = 21;
 	damon_add_region(r2, t);
 
 	damon_merge_two_regions(t, r, r2);
 	KUNIT_EXPECT_EQ(test, r->ar.start, 0ul);
 	KUNIT_EXPECT_EQ(test, r->ar.end, 300ul);
 	KUNIT_EXPECT_EQ(test, r->nr_accesses, 16u);
+	KUNIT_EXPECT_EQ(test, r->nr_accesses_bp, 160000u);
+	KUNIT_EXPECT_EQ(test, r->age, 17u);
 
 	i = 0;
 	damon_for_each_region(r3, t) {
-- 
2.43.0