int get_root_path(int want, char *fsname, int *outfd, char *path, int index,
dev_t *dev, char *nid);
int llapi_ioctl_pack(struct obd_ioctl_data *data, char **pbuf, int max_len);
+int llapi_ioctl_dev(int dev_id, unsigned int cmd, void *buf);
int llapi_ioctl_unpack(struct obd_ioctl_data *data, char *pbuf, int max_len);
int sattr_cache_get_defaults(const char *const fsname,
const char *const pathname, unsigned int *scount,