RF_int64
typedef RF_int64 RF_SectorNum_t;/* these are unsigned so we can set them to
typedef RF_int64 RF_StripeNum_t;
typedef RF_int64 RF_RaidAddr_t;
typedef RF_int64 RF_HeadSepLimit_t;
typedef RF_int64 RF_ReconUnitCount_t;
RF_int64 numbytes;
RF_int64 start, stop; /* start and end of range to be locked */
RF_int64 start2, stop2; /* start and end of 2nd range to be locked */