dev_attr_mount_tag 601 net/9p/trans_virtio.c err = sysfs_create_file(&(vdev->dev.kobj), &dev_attr_mount_tag.attr); dev_attr_mount_tag 720 net/9p/trans_virtio.c sysfs_remove_file(&(vdev->dev.kobj), &dev_attr_mount_tag.attr);