[PATCH 3/7] selftests/futex: Migrate futex_requeue_pi_mismatched_ops to harness

From: Wake Liu

Date: Mon Jun 01 2026 - 02:52:20 EST


Migrate futex_requeue_pi_mismatched_ops test to the kselftest harness framework,
removing mixed legacy ksft_* API usages and passing test metadata to helper thread.

Signed-off-by: Wake Liu <wakel@xxxxxxxxxx>
---
.../futex_requeue_pi_mismatched_ops.c | 39 +++++++++++--------
1 file changed, 23 insertions(+), 16 deletions(-)

diff --git a/tools/testing/selftests/futex/functional/futex_requeue_pi_mismatched_ops.c b/tools/testing/selftests/futex/functional/futex_requeue_pi_mismatched_ops.c
index f686e605359c..c55eadd261da 100644
--- a/tools/testing/selftests/futex/functional/futex_requeue_pi_mismatched_ops.c
+++ b/tools/testing/selftests/futex/functional/futex_requeue_pi_mismatched_ops.c
@@ -29,14 +29,17 @@

futex_t f1 = FUTEX_INITIALIZER;
futex_t f2 = FUTEX_INITIALIZER;
-int child_ret = 0;
+int child_ret;

void *blocking_child(void *arg)
{
+ struct __test_metadata *_metadata = (struct __test_metadata *)arg;
+
child_ret = futex_wait(&f1, f1, NULL, FUTEX_PRIVATE_FLAG);
if (child_ret < 0) {
child_ret = -errno;
- ksft_exit_fail_msg("futex_wait\n");
+ ASSERT_EQ(child_ret, 0)
+ TH_LOG("futex_wait failed: %s", strerror(errno));
}
return (void *)&child_ret;
}
@@ -46,8 +49,8 @@ TEST(requeue_pi_mismatched_ops)
pthread_t child;
int ret;

- if (pthread_create(&child, NULL, blocking_child, NULL))
- ksft_exit_fail_msg("pthread_create\n");
+ ASSERT_EQ(pthread_create(&child, NULL, blocking_child, _metadata), 0)
+ TH_LOG("pthread_create failed");

/* Allow the child to block in the kernel. */
sleep(1);
@@ -67,27 +70,31 @@ TEST(requeue_pi_mismatched_ops)
* FUTEX_WAKE.
*/
ret = futex_wake(&f1, 1, FUTEX_PRIVATE_FLAG);
- if (ret == 1)
+ if (ret == 1) {
ret = 0;
- else if (ret < 0)
- ksft_exit_fail_msg("futex_wake\n");
- else
- ksft_exit_fail_msg("futex_wake did not wake the child\n");
+ } else if (ret < 0) {
+ ASSERT_GE(ret, 0)
+ TH_LOG("futex_wake failed: %s", strerror(errno));
+ } else {
+ ASSERT_TRUE(0)
+ TH_LOG("futex_wake did not wake the child");
+ }
} else {
- ksft_exit_fail_msg("futex_cmp_requeue_pi\n");
+ ASSERT_TRUE(0)
+ TH_LOG("futex_cmp_requeue_pi failed with unexpected errno: %s", strerror(errno));
}
} else if (ret > 0) {
- ksft_test_result_fail("futex_cmp_requeue_pi failed to detect the mismatch\n");
+ EXPECT_EQ(ret, 0)
+ TH_LOG("futex_cmp_requeue_pi failed to detect the mismatch");
} else {
- ksft_exit_fail_msg("futex_cmp_requeue_pi found no waiters\n");
+ ASSERT_TRUE(0)
+ TH_LOG("futex_cmp_requeue_pi found no waiters");
}

pthread_join(child, NULL);

- if (!ret && !child_ret)
- ksft_test_result_pass("futex_requeue_pi_mismatched_ops passed\n");
- else
- ksft_test_result_pass("futex_requeue_pi_mismatched_ops failed\n");
+ EXPECT_EQ(ret, 0) TH_LOG("Test failed: ret=%d", ret);
+ EXPECT_EQ(child_ret, 0) TH_LOG("Child failed: child_ret=%d", child_ret);
}

TEST_HARNESS_MAIN
--
2.54.0.823.g6e5bcc1fc9-goog