CcZeroDataInCache

UINT8 __stdcall CcZeroDataInCache(
        FILE_OBJECT *FileObject,
        LARGE_INTEGER *StartingOffset,
        UINT64 LengthToZero,
        UINT8 Wait){
  int v4; 
  unsigned int v5; 
  unsigned int v7; 
  char v8; 
  __int64 v10; 
  unsigned int v11; 
  unsigned int v12; 
  _MDL *MemoryDescriptorList; 
  PVOID BcbVoid; 
  LONGLONG v15; 
  LONGLONG QuadPart; 
  void *VirtualAddress[2]; 
  UINT8 v18; 
  v4 = Wait;
  v5 = LengthToZero;
  v7 = 0;
  v15 = 0i64;
  QuadPart = StartingOffset->QuadPart;
  BcbVoid = 0i64;
  VirtualAddress[0] = 0i64;
  v18 = 1;
  while( 1 )
  {
    LODWORD(v10) = v4;
    if( !(unsigned __int8)CcPinFileData(
                             (__int64)FileObject,
                             &QuadPart,
                             v5 - v7,
                             0,
                             1,
                             v10,
                             &BcbVoid,
                             (__int64 *)VirtualAddress,
                             &v15) )
      break;
    v11 = v15 - QuadPart;
    v12 = v15 - QuadPart + v7;
    MemoryDescriptorList = IoAllocateMdl(VirtualAddress[0], (int)v15 - (int)QuadPart, 0, 0, 0i64);
    if( !MemoryDescriptorList )
      RtlRaiseStatus(-1073741670);
    v8 = *((_BYTE *)KeGetCurrentThread() + 1309) + 2;
    *((_BYTE *)KeGetCurrentThread() + 1309) = 1;
    MiProbeAndLockPages((INT64)MemoryDescriptorList, 0, 0i64);
    *((_BYTE *)KeGetCurrentThread() + 1309) = v8 - 2;
    QuadPart = v15;
    MmSetAddressRangeModifiedEx((UINT64)VirtualAddress[0], v11);
    CcSetDirtyPinnedData(BcbVoid, 0i64);
    CcUnpinFileDataEx(BcbVoid, 0, 0);
    BcbVoid = 0i64;
    MmUnlockPages(MemoryDescriptorList);
    IoFreeMdl(MemoryDescriptorList);
    v7 = v12;
    if( v5 <= v12 )
      goto LABEL_8;
  }
  v18 = 0;
LABEL_8:
  if( BcbVoid )
    CcUnpinFileDataEx(BcbVoid, 0, 0);
  return v18;
}

Referenced by: