MiReleasePageFileInfo

VOID __stdcall MiReleasePageFileInfo(_MI_PARTITION *Partition, _MMPTE PteContents, UINT64 Flags){
  unsigned __int64 Long; 
  unsigned __int64 v4; 
  unsigned __int64 v5; 
  unsigned __int64 v6; 
  _MMPAGING_FILE *v7; 
  INT64 *p_SpinLock; 
  int v9; 
  unsigned __int8 v10; 
  _MI_PAGING_FILE_SPACE_BITMAPS *Bitmaps; 
  unsigned __int64 v12; 
  int v14; 
  char v15; 

  v15 = Flags;
  Long = PteContents.u.Long;
  if( *(&stru_140C4DB30 + 42) && (PteContents.u.Long & 0x10) == 0 )
    Long = PteContents.u.Long & ~*(&stru_140C4DB30 + 42);
  v4 = HIDWORD(Long);
  v5 = (PteContents.u.Long >> 1) & 1;
  v6 = (PteContents.u.Long >> 2) & 1;
  v14 = 0;
  v7 = Partition->Vp.PagingFile[LOWORD(PteContents.u.Long) >> 12];
  p_SpinLock = (INT64 *)&v7->SpinLock;
  v9 = Flags & 1;
  if( (Flags & 1) != 0 )
  {
    ExAcquireSpinLockExclusiveAtDpcLevel(p_SpinLock);
    v10 = 2;
  }
  else
  {
    v10 = ExAcquireSpinLockExclusive(p_SpinLock);
  }
  Bitmaps = v7->Bitmaps;
  if( (_DWORD)v5 )
  {
    _bittestandreset((signed __int32 *)Bitmaps->ReservationBitmap.Buffer, v4);
    ++v7->FreeReservationSpace;
  }
  if( (_DWORD)v6 )
  {
    if( (v15 & 2) == 0 )
      MiClearPageFileHash(v7, (unsigned int)v4);
    if( (v7->_bf_cc & 0x40) != 0 )
    {
      MiStoreSetEvictPageFile(v7, (unsigned int)v4);
      goto LABEL_13;
    }
    _bittestandreset((signed __int32 *)Bitmaps->AllocationBitmap.Buffer, v4);
    v12 = ++v7->FreeSpace;
    if( (unsigned int)v4 < v7->AllocationBitmapHint )
      v7->AllocationBitmapHint = v4;
    ++v7->RefreshAllocationCluster;
    if( v12 == 1 && (v7->_bf_cc & 0x10000) != 0 )
      v14 = 1;
  }
  if( ((_DWORD)v5 || !_bittest64((const signed __int64 *)Bitmaps->ReservationBitmap.Buffer, v4))
    && ((_DWORD)v6 || !_bittest64((const signed __int64 *)Bitmaps->AllocationBitmap.Buffer, v4)) )
  {
    MiCoalescePageFileBitmapsCache(v7, (unsigned int)v5, (unsigned int)v4);
    _InterlockedExchange(
      &v7->Partition->Modwriter.ModWriteData.ReservationClusterInfo._bf_0,
      (v7->Partition->Modwriter.ModWriteData.ReservationClusterInfo._bf_0 & 0xFFFFFC00 | 0x200) + 1024);
  }
LABEL_13:
  ExReleaseSpinLockExclusiveFromDpcLevel((INT64 *)&v7->SpinLock);
  if( !v9 )
    __writecr8(v10);
  if( v14 == 1 )
    KeSetEvent((PRKEVENT)Partition->Modwriter.gap1B8, 0, 0);
}

Referenced by: