87 static pid_t get_pid_from_fdinfo_file(int pidfd, const char *key, size_t keylen)  in get_pid_from_fdinfo_file()  argument
96 	snprintf(path, sizeof(path), "/proc/self/fdinfo/%d", pidfd);  in get_pid_from_fdinfo_file()
124 	int pidfd = -1, ret = 1;  in main()  local
129 	pidfd = sys_pidfd_open(-1, 0);  in main()
130 	if (pidfd >= 0) {  in main()
138 	pidfd = sys_pidfd_open(getpid(), 1);  in main()
139 	if (pidfd >= 0) {  in main()
147 	pidfd = sys_pidfd_open(getpid(), 0);  in main()
148 	if (pidfd < 0) {  in main()
154 	pid = get_pid_from_fdinfo_file(pidfd, "Pid:", sizeof("Pid:") - 1);  in main()
155 	ksft_print_msg("pidfd %d refers to process with pid %d\n", pidfd, pid);  in main()
160 	if (pidfd >= 0)  in main()
161 		close(pidfd);  in main()