328 	struct drbd_thread *thi = (struct drbd_thread *) arg;  in drbd_thread_setup()  local
329 	struct drbd_resource *resource = thi->resource;  in drbd_thread_setup()
334 		 thi->name[0],  in drbd_thread_setup()
338 	retval = thi->function(thi);  in drbd_thread_setup()
340 	spin_lock_irqsave(&thi->t_lock, flags);  in drbd_thread_setup()
352 	if (thi->t_state == RESTARTING) {  in drbd_thread_setup()
353 		drbd_info(resource, "Restarting %s thread\n", thi->name);  in drbd_thread_setup()
354 		thi->t_state = RUNNING;  in drbd_thread_setup()
355 		spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_setup()
359 	thi->task = NULL;  in drbd_thread_setup()
360 	thi->t_state = NONE;  in drbd_thread_setup()
362 	complete_all(&thi->stop);  in drbd_thread_setup()
363 	spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_setup()
369 	if (thi->connection)  in drbd_thread_setup()
370 		kref_put(&thi->connection->kref, drbd_destroy_connection);  in drbd_thread_setup()
376 static void drbd_thread_init(struct drbd_resource *resource, struct drbd_thread *thi,  in drbd_thread_init()  argument
379 	spin_lock_init(&thi->t_lock);  in drbd_thread_init()
380 	thi->task    = NULL;  in drbd_thread_init()
381 	thi->t_state = NONE;  in drbd_thread_init()
382 	thi->function = func;  in drbd_thread_init()
383 	thi->resource = resource;  in drbd_thread_init()
384 	thi->connection = NULL;  in drbd_thread_init()
385 	thi->name = name;  in drbd_thread_init()
388 int drbd_thread_start(struct drbd_thread *thi)  in drbd_thread_start()  argument
390 	struct drbd_resource *resource = thi->resource;  in drbd_thread_start()
396 	spin_lock_irqsave(&thi->t_lock, flags);  in drbd_thread_start()
398 	switch (thi->t_state) {  in drbd_thread_start()
401 			 thi->name, current->comm, current->pid);  in drbd_thread_start()
406 			spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_start()
411 		if (thi->connection)  in drbd_thread_start()
412 			kref_get(&thi->connection->kref);  in drbd_thread_start()
414 		init_completion(&thi->stop);  in drbd_thread_start()
415 		thi->reset_cpu_mask = 1;  in drbd_thread_start()
416 		thi->t_state = RUNNING;  in drbd_thread_start()
417 		spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_start()
420 		nt = kthread_create(drbd_thread_setup, (void *) thi,  in drbd_thread_start()
421 				    "drbd_%c_%s", thi->name[0], thi->resource->name);  in drbd_thread_start()
426 			if (thi->connection)  in drbd_thread_start()
427 				kref_put(&thi->connection->kref, drbd_destroy_connection);  in drbd_thread_start()
432 		spin_lock_irqsave(&thi->t_lock, flags);  in drbd_thread_start()
433 		thi->task = nt;  in drbd_thread_start()
434 		thi->t_state = RUNNING;  in drbd_thread_start()
435 		spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_start()
439 		thi->t_state = RESTARTING;  in drbd_thread_start()
441 				thi->name, current->comm, current->pid);  in drbd_thread_start()
446 		spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_start()
454 void _drbd_thread_stop(struct drbd_thread *thi, int restart, int wait)  in _drbd_thread_stop()  argument
461 	spin_lock_irqsave(&thi->t_lock, flags);  in _drbd_thread_stop()
463 	if (thi->t_state == NONE) {  in _drbd_thread_stop()
464 		spin_unlock_irqrestore(&thi->t_lock, flags);  in _drbd_thread_stop()
466 			drbd_thread_start(thi);  in _drbd_thread_stop()
470 	if (thi->t_state != ns) {  in _drbd_thread_stop()
471 		if (thi->task == NULL) {  in _drbd_thread_stop()
472 			spin_unlock_irqrestore(&thi->t_lock, flags);  in _drbd_thread_stop()
476 		thi->t_state = ns;  in _drbd_thread_stop()
478 		init_completion(&thi->stop);  in _drbd_thread_stop()
479 		if (thi->task != current)  in _drbd_thread_stop()
480 			force_sig(DRBD_SIGKILL, thi->task);  in _drbd_thread_stop()
483 	spin_unlock_irqrestore(&thi->t_lock, flags);  in _drbd_thread_stop()
486 		wait_for_completion(&thi->stop);  in _drbd_thread_stop()
549 void drbd_thread_current_set_cpu(struct drbd_thread *thi)  in drbd_thread_current_set_cpu()  argument
551 	struct drbd_resource *resource = thi->resource;  in drbd_thread_current_set_cpu()
554 	if (!thi->reset_cpu_mask)  in drbd_thread_current_set_cpu()
556 	thi->reset_cpu_mask = 0;  in drbd_thread_current_set_cpu()