472 static int rnbd_srv_check_update_open_perm(struct rnbd_srv_dev *srv_dev,  in rnbd_srv_check_update_open_perm()  argument
478 	mutex_lock(&srv_dev->lock);  in rnbd_srv_check_update_open_perm()
484 		if (srv_dev->open_write_cnt == 0)  {  in rnbd_srv_check_update_open_perm()
485 			srv_dev->open_write_cnt++;  in rnbd_srv_check_update_open_perm()
488 			       srv_dev->name, srv_sess->sessname,  in rnbd_srv_check_update_open_perm()
489 			       srv_dev->open_write_cnt,  in rnbd_srv_check_update_open_perm()
495 		if (srv_dev->open_write_cnt < 2) {  in rnbd_srv_check_update_open_perm()
496 			srv_dev->open_write_cnt++;  in rnbd_srv_check_update_open_perm()
499 			       srv_dev->name, srv_sess->sessname,  in rnbd_srv_check_update_open_perm()
500 			       srv_dev->open_write_cnt,  in rnbd_srv_check_update_open_perm()
507 		       srv_dev->name, srv_sess->sessname, access_mode);  in rnbd_srv_check_update_open_perm()
511 	mutex_unlock(&srv_dev->lock);  in rnbd_srv_check_update_open_perm()
571 			      struct rnbd_srv_dev *srv_dev)  in rnbd_srv_create_set_sess_dev()  argument
584 	sdev->dev		= srv_dev;  in rnbd_srv_create_set_sess_dev()
685 	struct rnbd_srv_dev *srv_dev;  in process_msg_open()  local
734 	srv_dev = rnbd_srv_get_or_create_srv_dev(file_bdev(bdev_file), srv_sess,  in process_msg_open()
736 	if (IS_ERR(srv_dev)) {  in process_msg_open()
738 		       full_path, srv_sess->sessname, srv_dev);  in process_msg_open()
739 		ret = PTR_ERR(srv_dev);  in process_msg_open()
746 				srv_dev);  in process_msg_open()
758 	mutex_lock(&srv_dev->lock);  in process_msg_open()
759 	if (!srv_dev->dev_kobj.state_in_sysfs) {  in process_msg_open()
760 		ret = rnbd_srv_create_dev_sysfs(srv_dev, file_bdev(bdev_file));  in process_msg_open()
762 			mutex_unlock(&srv_dev->lock);  in process_msg_open()
772 		mutex_unlock(&srv_dev->lock);  in process_msg_open()
779 	list_add(&srv_sess_dev->dev_list, &srv_dev->sess_dev_list);  in process_msg_open()
780 	mutex_unlock(&srv_dev->lock);  in process_msg_open()
782 	rnbd_srv_info(srv_sess_dev, "Opened device '%s'\n", srv_dev->name);  in process_msg_open()
797 		mutex_lock(&srv_dev->lock);  in process_msg_open()
798 		srv_dev->open_write_cnt--;  in process_msg_open()
799 		mutex_unlock(&srv_dev->lock);  in process_msg_open()
801 	rnbd_put_srv_dev(srv_dev);  in process_msg_open()