linux-kernel - [PATCH] selftests/mm: Deduplicate test logging in test_mlock

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Message-Id: <20250515-selftest-mm-mlock2-dup-v1-1-963d5d7d243a@kernel.org>
Date: Thu, 15 May 2025 11:27:14 +0200
From: Mark Brown <broonie@...nel.org>
To: Andrew Morton <akpm@...ux-foundation.org>, 
 Shuah Khan <shuah@...nel.org>
Cc: linux-mm@...ck.org, linux-kselftest@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>
Subject: [PATCH] selftests/mm: Deduplicate test logging in
 test_mlock_lock()

The mlock2-tests test_mlock_lock() test reports two test results with
an identical string, one reporitng if it successfully locked a block of
memory and another reporting if the lock is still present after doing an
unlock (following a similar pattern to other tests in the same program).
This confuses test automation since the test string is used to deduplicate
tests, change the post unlock test to report "Unlocked" instead like the
other tests to fix this.

Signed-off-by: Mark Brown <broonie@...nel.org>
---
 tools/testing/selftests/mm/mlock2-tests.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/mm/mlock2-tests.c b/tools/testing/selftests/mm/mlock2-tests.c
index 7f0d50fa361d..3e90ff37e336 100644
--- a/tools/testing/selftests/mm/mlock2-tests.c
+++ b/tools/testing/selftests/mm/mlock2-tests.c
@@ -196,7 +196,7 @@ static void test_mlock_lock(void)
 		ksft_exit_fail_msg("munlock(): %s\n", strerror(errno));
 	}
 
-	ksft_test_result(!unlock_lock_check(map), "%s: Locked\n", __func__);
+	ksft_test_result(!unlock_lock_check(map), "%s: Unlocked\n", __func__);
 	munmap(map, 2 * page_size);
 }
 

---
base-commit: 82f2b0b97b36ee3fcddf0f0780a9a0825d52fec3
change-id: 20250514-selftest-mm-mlock2-dup-277d586bb29d

Best regards,
-- 
Mark Brown <broonie@...nel.org>