463 static int rnbd_srv_check_update_open_perm(struct rnbd_srv_dev *srv_dev,  in rnbd_srv_check_update_open_perm()  argument
469 	mutex_lock(&srv_dev->lock);  in rnbd_srv_check_update_open_perm()
476 		if (srv_dev->open_write_cnt == 0)  {  in rnbd_srv_check_update_open_perm()
477 			srv_dev->open_write_cnt++;  in rnbd_srv_check_update_open_perm()
481 			       srv_dev->id, srv_sess->sessname,  in rnbd_srv_check_update_open_perm()
482 			       srv_dev->open_write_cnt,  in rnbd_srv_check_update_open_perm()
487 		if (srv_dev->open_write_cnt < 2) {  in rnbd_srv_check_update_open_perm()
488 			srv_dev->open_write_cnt++;  in rnbd_srv_check_update_open_perm()
492 			       srv_dev->id, srv_sess->sessname,  in rnbd_srv_check_update_open_perm()
493 			       srv_dev->open_write_cnt,  in rnbd_srv_check_update_open_perm()
499 		       srv_dev->id, srv_sess->sessname, access_mode);  in rnbd_srv_check_update_open_perm()
503 	mutex_unlock(&srv_dev->lock);  in rnbd_srv_check_update_open_perm()
569 			      struct rnbd_srv_dev *srv_dev)  in rnbd_srv_create_set_sess_dev()  argument
582 	sdev->dev		= srv_dev;  in rnbd_srv_create_set_sess_dev()
686 	struct rnbd_srv_dev *srv_dev;  in process_msg_open()  local
738 	srv_dev = rnbd_srv_get_or_create_srv_dev(rnbd_dev, srv_sess,  in process_msg_open()
740 	if (IS_ERR(srv_dev)) {  in process_msg_open()
742 		       full_path, srv_sess->sessname, PTR_ERR(srv_dev));  in process_msg_open()
743 		ret = PTR_ERR(srv_dev);  in process_msg_open()
749 						     srv_dev);  in process_msg_open()
761 	mutex_lock(&srv_dev->lock);  in process_msg_open()
762 	if (!srv_dev->dev_kobj.state_in_sysfs) {  in process_msg_open()
763 		ret = rnbd_srv_create_dev_sysfs(srv_dev, rnbd_dev->bdev,  in process_msg_open()
766 			mutex_unlock(&srv_dev->lock);  in process_msg_open()
776 		mutex_unlock(&srv_dev->lock);  in process_msg_open()
783 	list_add(&srv_sess_dev->dev_list, &srv_dev->sess_dev_list);  in process_msg_open()
784 	mutex_unlock(&srv_dev->lock);  in process_msg_open()
788 	rnbd_srv_info(srv_sess_dev, "Opened device '%s'\n", srv_dev->id);  in process_msg_open()
803 		mutex_lock(&srv_dev->lock);  in process_msg_open()
804 		srv_dev->open_write_cnt--;  in process_msg_open()
805 		mutex_unlock(&srv_dev->lock);  in process_msg_open()
807 	rnbd_put_srv_dev(srv_dev);  in process_msg_open()