38     int fd;  in init_psi_monitor()  local
42     fd = TEMP_FAILURE_RETRY(open(PSI_MON_FILE_MEMORY, O_WRONLY | O_CLOEXEC));  in init_psi_monitor()
43     if (fd < 0) {  in init_psi_monitor()
67     res = TEMP_FAILURE_RETRY(write(fd, buf, strlen(buf) + 1));  in init_psi_monitor()
74     return fd;  in init_psi_monitor()
77     close(fd);  in init_psi_monitor()
81 int register_psi_monitor(int epollfd, int fd, void* data) {  in register_psi_monitor()  argument
87     res = epoll_ctl(epollfd, EPOLL_CTL_ADD, fd, &epev);  in register_psi_monitor()
94 int unregister_psi_monitor(int epollfd, int fd) {  in unregister_psi_monitor()  argument
95     return epoll_ctl(epollfd, EPOLL_CTL_DEL, fd, NULL);  in unregister_psi_monitor()
98 void destroy_psi_monitor(int fd) {  in destroy_psi_monitor()  argument
99     if (fd >= 0) {  in destroy_psi_monitor()
100         close(fd);  in destroy_psi_monitor()