307 	struct drbd_thread *thi = (struct drbd_thread *) arg;  in drbd_thread_setup()  local
308 	struct drbd_resource *resource = thi->resource;  in drbd_thread_setup()
313 		 thi->name[0],  in drbd_thread_setup()
319 	retval = thi->function(thi);  in drbd_thread_setup()
321 	spin_lock_irqsave(&thi->t_lock, flags);  in drbd_thread_setup()
333 	if (thi->t_state == RESTARTING) {  in drbd_thread_setup()
334 		drbd_info(resource, "Restarting %s thread\n", thi->name);  in drbd_thread_setup()
335 		thi->t_state = RUNNING;  in drbd_thread_setup()
336 		spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_setup()
340 	thi->task = NULL;  in drbd_thread_setup()
341 	thi->t_state = NONE;  in drbd_thread_setup()
343 	complete_all(&thi->stop);  in drbd_thread_setup()
344 	spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_setup()
350 	if (thi->connection)  in drbd_thread_setup()
351 		kref_put(&thi->connection->kref, drbd_destroy_connection);  in drbd_thread_setup()
357 static void drbd_thread_init(struct drbd_resource *resource, struct drbd_thread *thi,  in drbd_thread_init()  argument
360 	spin_lock_init(&thi->t_lock);  in drbd_thread_init()
361 	thi->task    = NULL;  in drbd_thread_init()
362 	thi->t_state = NONE;  in drbd_thread_init()
363 	thi->function = func;  in drbd_thread_init()
364 	thi->resource = resource;  in drbd_thread_init()
365 	thi->connection = NULL;  in drbd_thread_init()
366 	thi->name = name;  in drbd_thread_init()
369 int drbd_thread_start(struct drbd_thread *thi)  in drbd_thread_start()  argument
371 	struct drbd_resource *resource = thi->resource;  in drbd_thread_start()
377 	spin_lock_irqsave(&thi->t_lock, flags);  in drbd_thread_start()
379 	switch (thi->t_state) {  in drbd_thread_start()
382 			 thi->name, current->comm, current->pid);  in drbd_thread_start()
387 			spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_start()
392 		if (thi->connection)  in drbd_thread_start()
393 			kref_get(&thi->connection->kref);  in drbd_thread_start()
395 		init_completion(&thi->stop);  in drbd_thread_start()
396 		thi->reset_cpu_mask = 1;  in drbd_thread_start()
397 		thi->t_state = RUNNING;  in drbd_thread_start()
398 		spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_start()
401 		nt = kthread_create(drbd_thread_setup, (void *) thi,  in drbd_thread_start()
402 				    "drbd_%c_%s", thi->name[0], thi->resource->name);  in drbd_thread_start()
407 			if (thi->connection)  in drbd_thread_start()
408 				kref_put(&thi->connection->kref, drbd_destroy_connection);  in drbd_thread_start()
413 		spin_lock_irqsave(&thi->t_lock, flags);  in drbd_thread_start()
414 		thi->task = nt;  in drbd_thread_start()
415 		thi->t_state = RUNNING;  in drbd_thread_start()
416 		spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_start()
420 		thi->t_state = RESTARTING;  in drbd_thread_start()
422 				thi->name, current->comm, current->pid);  in drbd_thread_start()
427 		spin_unlock_irqrestore(&thi->t_lock, flags);  in drbd_thread_start()
435 void _drbd_thread_stop(struct drbd_thread *thi, int restart, int wait)  in _drbd_thread_stop()  argument
442 	spin_lock_irqsave(&thi->t_lock, flags);  in _drbd_thread_stop()
444 	if (thi->t_state == NONE) {  in _drbd_thread_stop()
445 		spin_unlock_irqrestore(&thi->t_lock, flags);  in _drbd_thread_stop()
447 			drbd_thread_start(thi);  in _drbd_thread_stop()
451 	if (thi->t_state != ns) {  in _drbd_thread_stop()
452 		if (thi->task == NULL) {  in _drbd_thread_stop()
453 			spin_unlock_irqrestore(&thi->t_lock, flags);  in _drbd_thread_stop()
457 		thi->t_state = ns;  in _drbd_thread_stop()
459 		init_completion(&thi->stop);  in _drbd_thread_stop()
460 		if (thi->task != current)  in _drbd_thread_stop()
461 			send_sig(DRBD_SIGKILL, thi->task, 1);  in _drbd_thread_stop()
464 	spin_unlock_irqrestore(&thi->t_lock, flags);  in _drbd_thread_stop()
467 		wait_for_completion(&thi->stop);  in _drbd_thread_stop()
529 void drbd_thread_current_set_cpu(struct drbd_thread *thi)  in drbd_thread_current_set_cpu()  argument
531 	struct drbd_resource *resource = thi->resource;  in drbd_thread_current_set_cpu()
534 	if (!thi->reset_cpu_mask)  in drbd_thread_current_set_cpu()
536 	thi->reset_cpu_mask = 0;  in drbd_thread_current_set_cpu()