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 	ret = wait_for_pid(pid);  in test_pidfd_send_signal_exited_fail()
156 	const char *test_name = "pidfd_send_signal signal recycled pid";  in test_pidfd_send_signal_recycled_pid_fail()
168 			ksft_test_result_skip("%s test: Unsharing pid namespace not permitted\n",  in test_pidfd_send_signal_recycled_pid_fail()
172 		ksft_exit_fail_msg("%s test: Failed to unshare pid namespace\n",  in test_pidfd_send_signal_recycled_pid_fail()
192 	/* pid 1 in new pid namespace */  in test_pidfd_send_signal_recycled_pid_fail()
208 		/* grab pid PID_RECYCLE */  in test_pidfd_send_signal_recycled_pid_fail()
219 				ksft_print_msg("pid to recycle is %d\n", pid2);  in test_pidfd_send_signal_recycled_pid_fail()
232 		 * able to grab pid PID_RECYCLE skip the test.  in test_pidfd_send_signal_recycled_pid_fail()
267 			 * recycled pid PID_RECYCLE.  in test_pidfd_send_signal_recycled_pid_fail()
278 			 * We have recycled the pid. Try to signal it. This  in test_pidfd_send_signal_recycled_pid_fail()
320 		/* failed to recycle pid */  in test_pidfd_send_signal_recycled_pid_fail()
328 			"%s test: Managed to signal recycled pid %d\n",  in test_pidfd_send_signal_recycled_pid_fail()
331 		ksft_exit_fail_msg("%s test: Failed to recycle pid %d\n",  in test_pidfd_send_signal_recycled_pid_fail()
339 			"%s test: Failed to signal recycled pid as expected\n",  in test_pidfd_send_signal_recycled_pid_fail()
384 	ksft_print_msg("Child Thread: starting. pid %d tid %ld ; and sleeping\n",  in test_pidfd_poll_exec_thread()
390 	ksft_print_msg("Child Thread: DONE. pid %d tid %ld\n",  in test_pidfd_poll_exec_thread()
430 	ksft_print_msg("Child (pidfd): starting. pid %d tid %ld\n", getpid(),  in child_poll_exec_test()
445 	int pid, pidfd = 0;  in test_pidfd_poll_exec()  local
450 	ksft_print_msg("Parent: pid: %d\n", getpid());  in test_pidfd_poll_exec()
451 	pid = pidfd_clone(CLONE_PIDFD, &pidfd, child_poll_exec_test);  in test_pidfd_poll_exec()
452 	if (pid < 0)  in test_pidfd_poll_exec()
454 				   test_name, pid, errno);  in test_pidfd_poll_exec()
456 	ksft_print_msg("Parent: Waiting for Child (%d) to complete.\n", pid);  in test_pidfd_poll_exec()
459 		ret = waitpid(pid, &status, 0);  in test_pidfd_poll_exec()
463 		if (ret == pid)  in test_pidfd_poll_exec()
483 	ksft_print_msg("Child Thread: starting. pid %d tid %ld ; and sleeping\n",  in test_pidfd_poll_leader_exit_thread()
486 	ksft_print_msg("Child Thread: DONE. pid %d tid %ld\n", getpid(), syscall(SYS_gettid));  in test_pidfd_poll_leader_exit_thread()
495 	ksft_print_msg("Child: starting. pid %d tid %ld\n", getpid(), syscall(SYS_gettid));  in child_poll_leader_exit_test()
511 	int pid, pidfd = 0;  in test_pidfd_poll_leader_exit()  local
523 	ksft_print_msg("Parent: pid: %d\n", getpid());  in test_pidfd_poll_leader_exit()
524 	pid = pidfd_clone(CLONE_PIDFD, &pidfd, child_poll_leader_exit_test);  in test_pidfd_poll_leader_exit()
525 	if (pid < 0)  in test_pidfd_poll_leader_exit()
527 				   test_name, pid, errno);  in test_pidfd_poll_leader_exit()
529 	ksft_print_msg("Parent: Waiting for Child (%d) to complete.\n", pid);  in test_pidfd_poll_leader_exit()
532 		ret = waitpid(pid, &status, 0);  in test_pidfd_poll_leader_exit()
545 	if (ret == pid)  in test_pidfd_poll_leader_exit()