226 	/* Inform the grand-parent what the tid of this thread is. */  in pidfd_info_pause_thread()
240 	pthread_t thread;  in TEST_F()  local
257 		/* The thread will outlive the thread-group leader. */  in TEST_F()
258 		if (pthread_create(&thread, NULL, pidfd_info_pause_thread, &ipc_sockets[1]))  in TEST_F()
261 		/* Make the thread-group leader exit prematurely. */  in TEST_F()
266 	 * Opening a PIDFD_THREAD aka thread-specific pidfd based on a  in TEST_F()
267 	 * thread-group leader must succeed.  in TEST_F()
276 		 * We can't poll and wait for the old thread-group  in TEST_F()
277 		 * leader to exit using a thread-specific pidfd. The  in TEST_F()
278 		 * thread-group leader exited prematurely and  in TEST_F()
294 	/* Retrieve the tid of the thread. */  in TEST_F()
299 	/* Opening a thread as a thread-group leader must fail. */  in TEST_F()
303 	/* Opening a thread as a PIDFD_THREAD must succeed. */  in TEST_F()
310 	 * Note that pidfd_leader is a thread-group pidfd, so polling on it  in TEST_F()
311 	 * would only notify us once all thread in the thread-group have  in TEST_F()
313 	 * thread-group.  in TEST_F()
316 	/* Get PIDFD_GET_INFO using the thread-group leader pidfd. */  in TEST_F()
324 	 * Now retrieve the same info using the thread specific pidfd  in TEST_F()
325 	 * for the thread-group leader.  in TEST_F()
334 	/* Now try the thread-specific pidfd. */  in TEST_F()
337 	/* The thread hasn't exited, so no PIDFD_INFO_EXIT information yet. */  in TEST_F()
342 	 * Take down the whole thread-group. The thread-group leader  in TEST_F()
343 	 * exited successfully but the thread will now be SIGKILLed.  in TEST_F()
354 	/* The thread-group leader has been reaped. */  in TEST_F()
358 	 * Retrieve exit information for the thread-group leader via the  in TEST_F()
359 	 * thread-group leader pidfd.  in TEST_F()
365 	/* The thread-group leader exited successfully. Only the specific thread was SIGKILLed. */  in TEST_F()
370 	 * Retrieve exit information for the thread-group leader via the  in TEST_F()
371 	 * thread-specific pidfd.  in TEST_F()
378 	/* The thread-group leader exited successfully. Only the specific thread was SIGKILLed. */  in TEST_F()
382 	/* Retrieve exit information for the thread. */  in TEST_F()
388 	/* The thread got SIGKILLed. */  in TEST_F()
401 	/* Inform the grand-parent what the tid of this thread is. */  in pidfd_info_thread_exec()
417 	pthread_t thread;  in TEST_F()  local
434 		/* The thread will outlive the thread-group leader. */  in TEST_F()
435 		if (pthread_create(&thread, NULL, pidfd_info_thread_exec, &ipc_sockets[1]))  in TEST_F()
438 		/* Make the thread-group leader exit prematurely. */  in TEST_F()
442 	/* Open a thread-specific pidfd for the thread-group leader. */  in TEST_F()
450 		 * We can't poll and wait for the old thread-group  in TEST_F()
451 		 * leader to exit using a thread-specific pidfd. The  in TEST_F()
452 		 * thread-group leader exited prematurely and  in TEST_F()
456 		 * When the thread has execed it will taken over the old  in TEST_F()
457 		 * thread-group leaders struct pid. Calling poll after  in TEST_F()
458 		 * the thread execed will thus block again because a new  in TEST_F()
459 		 * thread-group has started.  in TEST_F()
473 	/* Retrieve the tid of the thread. */  in TEST_F()
477 	/* Opening a thread as a PIDFD_THREAD must succeed. */  in TEST_F()
481 	/* Now that we've opened a thread-specific pidfd the thread can exec. */  in TEST_F()
487 	/* Wait until the kernel has SIGKILLed the thread. */  in TEST_F()
492 	/* The thread has been reaped. */  in TEST_F()
495 	/* Retrieve thread-specific exit info from pidfd. */  in TEST_F()
500 	 * While the kernel will have SIGKILLed the whole thread-group  in TEST_F()
508 	 * The thread-group leader is still alive, the thread has taken  in TEST_F()
517 	/* Take down the thread-group leader. */  in TEST_F()
521 	 * Afte the exec we're dealing with an empty thread-group so now  in TEST_F()
522 	 * we must see an exit notification on the thread-specific pidfd  in TEST_F()
523 	 * for the thread-group leader as there's no subthread that can  in TEST_F()
535 	/* Retrieve exit information for the thread-group leader. */  in TEST_F()
550 	/* Inform the grand-parent what the tid of this thread is. */  in pidfd_info_thread_exec_sane()
566 	pthread_t thread;  in TEST_F()  local
583 		/* The thread will outlive the thread-group leader. */  in TEST_F()
584 		if (pthread_create(&thread, NULL, pidfd_info_thread_exec_sane, &ipc_sockets[1]))  in TEST_F()
588 		 * Pause the thread-group leader. It will be killed once  in TEST_F()
595 	/* Retrieve the tid of the thread. */  in TEST_F()
599 	/* Opening a thread as a PIDFD_THREAD must succeed. */  in TEST_F()
603 	/* Open a thread-specific pidfd for the thread-group leader. */  in TEST_F()
612 		 * thread-group leader will be assumed by the subthread which  in TEST_F()
613 		 * becomes the new thread-group leader. So no exit notification  in TEST_F()
629 	/* Now that we've opened a thread-specific pidfd the thread can exec. */  in TEST_F()
634 	/* Wait until the kernel has SIGKILLed the thread. */  in TEST_F()
639 	/* The thread has been reaped. */  in TEST_F()
642 	/* Retrieve thread-specific exit info from pidfd. */  in TEST_F()
647 	 * While the kernel will have SIGKILLed the whole thread-group  in TEST_F()
655 	 * The thread-group leader is still alive, the thread has taken  in TEST_F()
664 	/* Take down the thread-group leader. */  in TEST_F()
668 	 * Afte the exec we're dealing with an empty thread-group so now  in TEST_F()
669 	 * we must see an exit notification on the thread-specific pidfd  in TEST_F()
670 	 * for the thread-group leader as there's no subthread that can  in TEST_F()
682 	/* Retrieve exit information for the thread-group leader. */  in TEST_F()