extern int64_t do_blockdev_getsize64 (const char *device);
extern int do_blockdev_flushbufs (const char *device);
extern int do_blockdev_rereadpt (const char *device);
extern int64_t do_blockdev_getsize64 (const char *device);
extern int do_blockdev_flushbufs (const char *device);
extern int do_blockdev_rereadpt (const char *device);