311 	struct drbd_thread *thi = (struct drbd_thread *) arg;  in drbd_thread_setup()  local
312 	struct drbd_resource *resource = thi->resource;  in drbd_thread_setup()
317 		 thi->name[0],  in drbd_thread_setup()
323 	retval = thi->function(thi);  in drbd_thread_setup()
325 	spin_lock_irqsave(&thi->t_lock, flags);  in drbd_thread_setup()
337 	if (thi->t_state == RESTARTING) {  in drbd_thread_setup()
338 		drbd_info(resource, "Restarting %s thread\n", thi->name);  in drbd_thread_setup()
339 		thi->t_state = RUNNING;  in drbd_thread_setup()
340 		spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_setup()
344 	thi->task = NULL;  in drbd_thread_setup()
345 	thi->t_state = NONE;  in drbd_thread_setup()
347 	complete_all(&thi->stop);  in drbd_thread_setup()
348 	spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_setup()
354 	if (thi->connection)  in drbd_thread_setup()
355 		kref_put(&thi->connection->kref, drbd_destroy_connection);  in drbd_thread_setup()
361 static void drbd_thread_init(struct drbd_resource *resource, struct drbd_thread *thi,  in drbd_thread_init()  argument
364 	spin_lock_init(&thi->t_lock);  in drbd_thread_init()
365 	thi->task    = NULL;  in drbd_thread_init()
366 	thi->t_state = NONE;  in drbd_thread_init()
367 	thi->function = func;  in drbd_thread_init()
368 	thi->resource = resource;  in drbd_thread_init()
369 	thi->connection = NULL;  in drbd_thread_init()
370 	thi->name = name;  in drbd_thread_init()
373 int drbd_thread_start(struct drbd_thread *thi)  in drbd_thread_start()  argument
375 	struct drbd_resource *resource = thi->resource;  in drbd_thread_start()
381 	spin_lock_irqsave(&thi->t_lock, flags);  in drbd_thread_start()
383 	switch (thi->t_state) {  in drbd_thread_start()
386 			 thi->name, current->comm, current->pid);  in drbd_thread_start()
391 			spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_start()
396 		if (thi->connection)  in drbd_thread_start()
397 			kref_get(&thi->connection->kref);  in drbd_thread_start()
399 		init_completion(&thi->stop);  in drbd_thread_start()
400 		thi->reset_cpu_mask = 1;  in drbd_thread_start()
401 		thi->t_state = RUNNING;  in drbd_thread_start()
402 		spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_start()
405 		nt = kthread_create(drbd_thread_setup, (void *) thi,  in drbd_thread_start()
406 				    "drbd_%c_%s", thi->name[0], thi->resource->name);  in drbd_thread_start()
411 			if (thi->connection)  in drbd_thread_start()
412 				kref_put(&thi->connection->kref, drbd_destroy_connection);  in drbd_thread_start()
417 		spin_lock_irqsave(&thi->t_lock, flags);  in drbd_thread_start()
418 		thi->task = nt;  in drbd_thread_start()
419 		thi->t_state = RUNNING;  in drbd_thread_start()
420 		spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_start()
424 		thi->t_state = RESTARTING;  in drbd_thread_start()
426 				thi->name, current->comm, current->pid);  in drbd_thread_start()
431 		spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_start()
439 void _drbd_thread_stop(struct drbd_thread *thi, int restart, int wait)  in _drbd_thread_stop()  argument
446 	spin_lock_irqsave(&thi->t_lock, flags);  in _drbd_thread_stop()
448 	if (thi->t_state == NONE) {  in _drbd_thread_stop()
449 		spin_unlock_irqrestore(&thi->t_lock, flags);  in _drbd_thread_stop()
451 			drbd_thread_start(thi);  in _drbd_thread_stop()
455 	if (thi->t_state != ns) {  in _drbd_thread_stop()
456 		if (thi->task == NULL) {  in _drbd_thread_stop()
457 			spin_unlock_irqrestore(&thi->t_lock, flags);  in _drbd_thread_stop()
461 		thi->t_state = ns;  in _drbd_thread_stop()
463 		init_completion(&thi->stop);  in _drbd_thread_stop()
464 		if (thi->task != current)  in _drbd_thread_stop()
465 			send_sig(DRBD_SIGKILL, thi->task, 1);  in _drbd_thread_stop()
468 	spin_unlock_irqrestore(&thi->t_lock, flags);  in _drbd_thread_stop()
471 		wait_for_completion(&thi->stop);  in _drbd_thread_stop()
519 void drbd_thread_current_set_cpu(struct drbd_thread *thi)  in drbd_thread_current_set_cpu()  argument
521 	struct drbd_resource *resource = thi->resource;  in drbd_thread_current_set_cpu()
524 	if (!thi->reset_cpu_mask)  in drbd_thread_current_set_cpu()
526 	thi->reset_cpu_mask = 0;  in drbd_thread_current_set_cpu()