480 static int rnbd_srv_check_update_open_perm(struct rnbd_srv_dev *srv_dev,  in rnbd_srv_check_update_open_perm()  argument
486 	mutex_lock(&srv_dev->lock);  in rnbd_srv_check_update_open_perm()
492 		if (srv_dev->open_write_cnt == 0)  {  in rnbd_srv_check_update_open_perm()
493 			srv_dev->open_write_cnt++;  in rnbd_srv_check_update_open_perm()
496 			       srv_dev->name, srv_sess->sessname,  in rnbd_srv_check_update_open_perm()
497 			       srv_dev->open_write_cnt,  in rnbd_srv_check_update_open_perm()
503 		if (srv_dev->open_write_cnt < 2) {  in rnbd_srv_check_update_open_perm()
504 			srv_dev->open_write_cnt++;  in rnbd_srv_check_update_open_perm()
507 			       srv_dev->name, srv_sess->sessname,  in rnbd_srv_check_update_open_perm()
508 			       srv_dev->open_write_cnt,  in rnbd_srv_check_update_open_perm()
515 		       srv_dev->name, srv_sess->sessname, access_mode);  in rnbd_srv_check_update_open_perm()
519 	mutex_unlock(&srv_dev->lock);  in rnbd_srv_check_update_open_perm()
581 			      struct rnbd_srv_dev *srv_dev)  in rnbd_srv_create_set_sess_dev()  argument
594 	sdev->dev		= srv_dev;  in rnbd_srv_create_set_sess_dev()
696 	struct rnbd_srv_dev *srv_dev;  in process_msg_open()  local
745 	srv_dev = rnbd_srv_get_or_create_srv_dev(file_bdev(bdev_file), srv_sess,  in process_msg_open()
747 	if (IS_ERR(srv_dev)) {  in process_msg_open()
749 		       full_path, srv_sess->sessname, srv_dev);  in process_msg_open()
750 		ret = PTR_ERR(srv_dev);  in process_msg_open()
757 				srv_dev);  in process_msg_open()
769 	mutex_lock(&srv_dev->lock);  in process_msg_open()
770 	if (!srv_dev->dev_kobj.state_in_sysfs) {  in process_msg_open()
771 		ret = rnbd_srv_create_dev_sysfs(srv_dev, file_bdev(bdev_file));  in process_msg_open()
773 			mutex_unlock(&srv_dev->lock);  in process_msg_open()
783 		mutex_unlock(&srv_dev->lock);  in process_msg_open()
790 	list_add(&srv_sess_dev->dev_list, &srv_dev->sess_dev_list);  in process_msg_open()
791 	mutex_unlock(&srv_dev->lock);  in process_msg_open()
793 	rnbd_srv_info(srv_sess_dev, "Opened device '%s'\n", srv_dev->name);  in process_msg_open()
808 		mutex_lock(&srv_dev->lock);  in process_msg_open()
809 		srv_dev->open_write_cnt--;  in process_msg_open()
810 		mutex_unlock(&srv_dev->lock);  in process_msg_open()
812 	rnbd_put_srv_dev(srv_dev);  in process_msg_open()