FsRtlLookupLargeMcbEntry

UINT8 __stdcall FsRtlLookupLargeMcbEntry(
        _LARGE_MCB *Mcb,
        INT64 LargeVbn,
        INT64 *LargeLbn,
        INT64 *LargeSectorCount,
        INT64 *LargeStartingLbn,
        INT64 *LargeCountFromStartingLbn,
        UINT64 *Index){
  ExAcquireFastMutex(Mcb->GuardedMutex);
  LOBYTE(LargeSectorCount) = FsRtlLookupBaseMcbEntry(
                               &Mcb->BaseMcb,
                               LargeVbn,
                               LargeLbn,
                               LargeSectorCount,
                               LargeStartingLbn,
                               LargeCountFromStartingLbn,
                               Index);
  KeReleaseGuardedMutex(Mcb->GuardedMutex);
  return(unsigned __int8)LargeSectorCount;
}

Referenced by:

FsRtlLookupMcbEntry