96 	pid_t pid;  in test_pidfd_send_signal_exited_fail()  local
106 	pid = fork();  in test_pidfd_send_signal_exited_fail()
107 	if (pid < 0)  in test_pidfd_send_signal_exited_fail()
111 	if (pid == 0)  in test_pidfd_send_signal_exited_fail()
114 	snprintf(buf, sizeof(buf), "/proc/%d", pid);  in test_pidfd_send_signal_exited_fail()
118 	(void)wait_for_pid(pid);  in test_pidfd_send_signal_exited_fail()
155 	const char *test_name = "pidfd_send_signal signal recycled pid";  in test_pidfd_send_signal_recycled_pid_fail()
167 			ksft_test_result_skip("%s test: Unsharing pid namespace not permitted\n",  in test_pidfd_send_signal_recycled_pid_fail()
171 		ksft_exit_fail_msg("%s test: Failed to unshare pid namespace\n",  in test_pidfd_send_signal_recycled_pid_fail()
191 	/* pid 1 in new pid namespace */  in test_pidfd_send_signal_recycled_pid_fail()
207 		/* grab pid PID_RECYCLE */  in test_pidfd_send_signal_recycled_pid_fail()
218 				ksft_print_msg("pid to recycle is %d\n", pid2);  in test_pidfd_send_signal_recycled_pid_fail()
231 		 * able to grab pid PID_RECYCLE skip the test.  in test_pidfd_send_signal_recycled_pid_fail()
266 			 * recycled pid PID_RECYCLE.  in test_pidfd_send_signal_recycled_pid_fail()
277 			 * We have recycled the pid. Try to signal it. This  in test_pidfd_send_signal_recycled_pid_fail()
319 		/* failed to recycle pid */  in test_pidfd_send_signal_recycled_pid_fail()
327 			"%s test: Managed to signal recycled pid %d\n",  in test_pidfd_send_signal_recycled_pid_fail()
330 		ksft_exit_fail_msg("%s test: Failed to recycle pid %d\n",  in test_pidfd_send_signal_recycled_pid_fail()
338 			"%s test: Failed to signal recycled pid as expected\n",  in test_pidfd_send_signal_recycled_pid_fail()
383 	ksft_print_msg("Child Thread: starting. pid %d tid %d ; and sleeping\n",  in test_pidfd_poll_exec_thread()
389 	ksft_print_msg("Child Thread: DONE. pid %d tid %d\n",  in test_pidfd_poll_exec_thread()
429 	ksft_print_msg("Child (pidfd): starting. pid %d tid %d\n", getpid(),  in child_poll_exec_test()
444 	int pid, pidfd = 0;  in test_pidfd_poll_exec()  local
449 	ksft_print_msg("Parent: pid: %d\n", getpid());  in test_pidfd_poll_exec()
450 	pid = pidfd_clone(CLONE_PIDFD, &pidfd, child_poll_exec_test);  in test_pidfd_poll_exec()
451 	if (pid < 0)  in test_pidfd_poll_exec()
453 				   test_name, pid, errno);  in test_pidfd_poll_exec()
455 	ksft_print_msg("Parent: Waiting for Child (%d) to complete.\n", pid);  in test_pidfd_poll_exec()
458 		ret = waitpid(pid, &status, 0);  in test_pidfd_poll_exec()
462 		if (ret == pid)  in test_pidfd_poll_exec()
482 	ksft_print_msg("Child Thread: starting. pid %d tid %d ; and sleeping\n",  in test_pidfd_poll_leader_exit_thread()
485 	ksft_print_msg("Child Thread: DONE. pid %d tid %d\n", getpid(), syscall(SYS_gettid));  in test_pidfd_poll_leader_exit_thread()
494 	ksft_print_msg("Child: starting. pid %d tid %d\n", getpid(), syscall(SYS_gettid));  in child_poll_leader_exit_test()
510 	int pid, pidfd = 0;  in test_pidfd_poll_leader_exit()  local
522 	ksft_print_msg("Parent: pid: %d\n", getpid());  in test_pidfd_poll_leader_exit()
523 	pid = pidfd_clone(CLONE_PIDFD, &pidfd, child_poll_leader_exit_test);  in test_pidfd_poll_leader_exit()
524 	if (pid < 0)  in test_pidfd_poll_leader_exit()
526 				   test_name, pid, errno);  in test_pidfd_poll_leader_exit()
528 	ksft_print_msg("Parent: Waiting for Child (%d) to complete.\n", pid);  in test_pidfd_poll_leader_exit()
531 		ret = waitpid(pid, &status, 0);  in test_pidfd_poll_leader_exit()
544 	if (ret == pid)  in test_pidfd_poll_leader_exit()