xref: /OK3568_Linux_fs/kernel/tools/lib/lockdep/tests/WW.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun #include <liblockdep/rwlock.h>
3*4882a593Smuzhiyun 
main(void)4*4882a593Smuzhiyun void main(void)
5*4882a593Smuzhiyun {
6*4882a593Smuzhiyun 	pthread_rwlock_t a, b;
7*4882a593Smuzhiyun 
8*4882a593Smuzhiyun 	pthread_rwlock_init(&a, NULL);
9*4882a593Smuzhiyun 	pthread_rwlock_init(&b, NULL);
10*4882a593Smuzhiyun 
11*4882a593Smuzhiyun 	pthread_rwlock_wrlock(&a);
12*4882a593Smuzhiyun 	pthread_rwlock_rdlock(&b);
13*4882a593Smuzhiyun 	pthread_rwlock_wrlock(&a);
14*4882a593Smuzhiyun }
15