1 // SPDX-License-Identifier: GPL-2.0
3 #include <linux/membarrier.h>
10 #include "membarrier_test_impl.h"
12 static int thread_ready, thread_quit;
13 static pthread_mutex_t test_membarrier_thread_mutex =
14 PTHREAD_MUTEX_INITIALIZER;
15 static pthread_cond_t test_membarrier_thread_cond =
16 PTHREAD_COND_INITIALIZER;
18 void *test_membarrier_thread(void *arg)
20 pthread_mutex_lock(&test_membarrier_thread_mutex);
22 pthread_cond_broadcast(&test_membarrier_thread_cond);
23 pthread_mutex_unlock(&test_membarrier_thread_mutex);
25 pthread_mutex_lock(&test_membarrier_thread_mutex);
27 pthread_cond_wait(&test_membarrier_thread_cond,
28 &test_membarrier_thread_mutex);
29 pthread_mutex_unlock(&test_membarrier_thread_mutex);
34 static int test_mt_membarrier(void)
37 pthread_t test_thread;
39 pthread_create(&test_thread, NULL,
40 test_membarrier_thread, NULL);
42 pthread_mutex_lock(&test_membarrier_thread_mutex);
44 pthread_cond_wait(&test_membarrier_thread_cond,
45 &test_membarrier_thread_mutex);
46 pthread_mutex_unlock(&test_membarrier_thread_mutex);
48 test_membarrier_fail();
50 test_membarrier_success();
52 pthread_mutex_lock(&test_membarrier_thread_mutex);
54 pthread_cond_broadcast(&test_membarrier_thread_cond);
55 pthread_mutex_unlock(&test_membarrier_thread_mutex);
57 pthread_join(test_thread, NULL);
62 int main(int argc, char **argv)
67 test_membarrier_query();
72 return ksft_exit_pass();