From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 29F5531E833; Sat, 7 Mar 2026 19:42:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772912547; cv=none; b=QyR8OzRkPwZuCBsKAPdpBPRr0W1NPltr/fCZ0Mu6g5oWhDY2ylSFlQ6mx6yoj3NRKqoj+agB/2MqzrUscgqYOAkGH4Tbna9uTJ3JHOKLPgZFdjapkxHprmUop8yuWrJT9WUXf3qvpSq5poIsec5ZKBBk0v4oGBI8E6kiD6Z/Jz4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772912547; c=relaxed/simple; bh=AJWquAe6BG8YHnrQ8aXuxdUfziQhpzCbJ1zdbrFuHTE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=miePJ4+gfeFMNWS/RD87AX3rFWUxYRIBk1Y0CAiKAsAoqBj2NbnHHYPLO2TGEH/9C89DU+4TsOLPFjPK2ZkBfU0RJU3/JY5+gSWgM3AJDlqwkzteluRehgQLgyGgzOJ+Haamieh6AuSXFxhHnnvdQsR7DUjPHmYAHayfDWrp0u0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hHL0zZ0T; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="hHL0zZ0T" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B72E6C2BC87; Sat, 7 Mar 2026 19:42:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772912546; bh=AJWquAe6BG8YHnrQ8aXuxdUfziQhpzCbJ1zdbrFuHTE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hHL0zZ0TvAHNnHQ7Cx8FggEW9UvgVWE6BVsBXZwT60K2Z8O1FwYY3Pym8SbI1gYtu xdvlKOSPZRT6iZZrqinbtJZlAhWko57Z1GwX/inx0BJxQqSupQ+3mP7OzkILA7tW5p U472oBC98UgOEoKmsg5vxmtr/JI610fktLoLqtScM8MIof5ghrMqHdDlamRm8wJtuW qWizXPYVxtmj2Pt7AXmB5SKdWV+qzCi/cjBkkk45HJLUBdAxI70UerT0oxZI2ec9Bp 6CidYja03cW/p+ZsEsl4jWhFfkXg1bUexTzIXphxBZhgi7eFqfiWKLOkIiEsSt1XU9 Sa6TLm0CSKJTg== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , Brendan Higgins , David Gow , damon@lists.linux.dev, kunit-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 1/2] mm/damon/tests/core-kunit: add a test for damon_commit_ctx() Date: Sat, 7 Mar 2026 11:42:20 -0800 Message-ID: <20260307194222.202075-2-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260307194222.202075-1-sj@kernel.org> References: <20260307194222.202075-1-sj@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add a kunit test for confirming the change that is made on commit c80f46ac228b ("mm/damon/core: disallow non-power of two min_region_sz") functions as expected. Signed-off-by: SeongJae Park --- mm/damon/tests/core-kunit.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/mm/damon/tests/core-kunit.h b/mm/damon/tests/core-kunit.h index 44a983fca9501..65181c6dac1b4 100644 --- a/mm/damon/tests/core-kunit.h +++ b/mm/damon/tests/core-kunit.h @@ -1060,6 +1060,27 @@ static void damon_test_commit_target_regions(struct kunit *test) (unsigned long[][2]) {{3, 8}, {8, 10}}, 2); } +static void damon_test_commit_ctx(struct kunit *test) +{ + struct damon_ctx *src, *dst; + + src = damon_new_ctx(); + if (!src) + kunit_skip(test, "src alloc fail"); + dst = damon_new_ctx(); + if (!dst) { + damon_destroy_ctx(src); + kunit_skip(test, "dst alloc fail"); + } + /* Only power of two min_region_sz is allowed. */ + src->min_region_sz = 4096; + KUNIT_EXPECT_EQ(test, damon_commit_ctx(dst, src), 0); + src->min_region_sz = 4095; + KUNIT_EXPECT_EQ(test, damon_commit_ctx(dst, src), -EINVAL); + damon_destroy_ctx(src); + damon_destroy_ctx(dst); +} + static void damos_test_filter_out(struct kunit *test) { struct damon_target *t; @@ -1316,6 +1337,7 @@ static struct kunit_case damon_test_cases[] = { KUNIT_CASE(damos_test_commit_pageout), KUNIT_CASE(damos_test_commit_migrate_hot), KUNIT_CASE(damon_test_commit_target_regions), + KUNIT_CASE(damon_test_commit_ctx), KUNIT_CASE(damos_test_filter_out), KUNIT_CASE(damon_test_feed_loop_next_input), KUNIT_CASE(damon_test_set_filters_default_reject), -- 2.47.3