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selftests/futex: Fix incorrect result reporting of futex_requeue test item

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When using the TEST_HARNESS_MAIN macro definition to declare the main
function, it is required to use the EXPECT*() and ASSERT*() macros in
conjunction and not ksft_test_result_*(). Otherwise, even if a test item
fails, the test will still return a success result because
ksft_test_result_*() does not affect the test harness state.

Convert the code to use EXPECT/ASSERT() variants, which ensures that the
overall test result is fail if one of the EXPECT()s fails.

[ tglx: Massaged change log to explain _why_ ksft_test_result*() is the wrong
  	choice ]

Fixes: f341a20f6d ("selftests/futex: Refactor futex_requeue with kselftest_harness.h")
Signed-off-by: Yuwen Chen <ywen.chen@foxmail.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/tencent_51851B741CC4B5EC9C22AFF70BA82BB60805@qq.com
This commit is contained in:
Yuwen Chen
2026-01-28 10:03:10 +08:00
committed by Thomas Gleixner
parent 24d479d26b
commit d317e2ef9d
1 changed files with 8 additions and 41 deletions
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49
tools/testing/selftests/futex/functional/futex_requeue.c
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@@ -34,34 +34,18 @@ TEST(requeue_single)
volatile futex_t _f1 = 0;
volatile futex_t f2 = 0;
pthread_t waiter[10];
int res;
f1 = &_f1;
/*
* Requeue a waiter from f1 to f2, and wake f2.
*/
if (pthread_create(&waiter[0], NULL, waiterfn, NULL))
ksft_exit_fail_msg("pthread_create failed\n");
ASSERT_EQ(0, pthread_create(&waiter[0], NULL, waiterfn, NULL));
usleep(WAKE_WAIT_US);
ksft_print_dbg_msg("Requeuing 1 futex from f1 to f2\n");
res = futex_cmp_requeue(f1, 0, &f2, 0, 1, 0);
if (res != 1)
ksft_test_result_fail("futex_requeue simple returned: %d %s\n",
res ? errno : res,
res ? strerror(errno) : "");
ksft_print_dbg_msg("Waking 1 futex at f2\n");
res = futex_wake(&f2, 1, 0);
if (res != 1) {
ksft_test_result_fail("futex_requeue simple returned: %d %s\n",
res ? errno : res,
res ? strerror(errno) : "");
} else {
ksft_test_result_pass("futex_requeue simple succeeds\n");
}
EXPECT_EQ(1, futex_cmp_requeue(f1, 0, &f2, 0, 1, 0));
EXPECT_EQ(1, futex_wake(&f2, 1, 0));
}
TEST(requeue_multiple)
@@ -69,7 +53,7 @@ TEST(requeue_multiple)
volatile futex_t _f1 = 0;
volatile futex_t f2 = 0;
pthread_t waiter[10];
int res, i;
int i;
f1 = &_f1;
@@ -77,30 +61,13 @@ TEST(requeue_multiple)
* Create 10 waiters at f1. At futex_requeue, wake 3 and requeue 7.
* At futex_wake, wake INT_MAX (should be exactly 7).
*/
for (i = 0; i < 10; i++) {
if (pthread_create(&waiter[i], NULL, waiterfn, NULL))
ksft_exit_fail_msg("pthread_create failed\n");
}
for (i = 0; i < 10; i++)
ASSERT_EQ(0, pthread_create(&waiter[i], NULL, waiterfn, NULL));
usleep(WAKE_WAIT_US);
ksft_print_dbg_msg("Waking 3 futexes at f1 and requeuing 7 futexes from f1 to f2\n");
res = futex_cmp_requeue(f1, 0, &f2, 3, 7, 0);
if (res != 10) {
ksft_test_result_fail("futex_requeue many returned: %d %s\n",
res ? errno : res,
res ? strerror(errno) : "");
}
ksft_print_dbg_msg("Waking INT_MAX futexes at f2\n");
res = futex_wake(&f2, INT_MAX, 0);
if (res != 7) {
ksft_test_result_fail("futex_requeue many returned: %d %s\n",
res ? errno : res,
res ? strerror(errno) : "");
} else {
ksft_test_result_pass("futex_requeue many succeeds\n");
}
EXPECT_EQ(10, futex_cmp_requeue(f1, 0, &f2, 3, 7, 0));
EXPECT_EQ(7, futex_wake(&f2, INT_MAX, 0));
}
TEST_HARNESS_MAIN