extern int64_t guestfs_blockdev_getsize64 (guestfs_h *handle, const char *device);
extern int guestfs_blockdev_flushbufs (guestfs_h *handle, const char *device);
extern int guestfs_blockdev_rereadpt (guestfs_h *handle, const char *device);
extern int64_t guestfs_blockdev_getsize64 (guestfs_h *handle, const char *device);
extern int guestfs_blockdev_flushbufs (guestfs_h *handle, const char *device);
extern int guestfs_blockdev_rereadpt (guestfs_h *handle, const char *device);