MiFreeSmallPageFromMdl

UINT64 __stdcall MiFreeSmallPageFromMdl(UINT64 PageFrameIndex, UINT64 Flags){
  char v2; 
  signed __int64 v3; 
  char *v5; 
  _BOOL8 v6; 
  unsigned __int64 v7; 
  UINT64 v8; 
  bool v9; 
  UINT64 v10; 
  _QWORD *v11; 
  unsigned __int64 v12; 
  unsigned __int64 v13; 
  UINT64 BitsMustBeChanged; 
  v2 = Flags;
  v3 = 48 * PageFrameIndex;
  v5 = (char *)MmGetPfnDb() + 48 * PageFrameIndex;
  v6 = 0i64;
  v7 = (unsigned __int8)MiLockPageInline((INT64)v5);
  LODWORD(BitsMustBeChanged) = 0;
  v8 = *(_QWORD *)(qword_140C4E388 + 8 * ((*((_QWORD *)v5 + 5) >> 39) & 0x3FFi64));
  MiUpdateLargePageBitMap(v8, PageFrameIndex, 1ui64, 0i64, BitsMustBeChanged);
  *((_QWORD *)v5 + 3) &= 0xC000000000000000ui64;
  v9 = *((_WORD *)v5 + 16) == 2;
  *((_WORD *)v5 + 16) -= 2;
  if( v9 )
  {
    if( !MiIsPfnFromSlabAllocation((INT64)v5) )
      v6 = (v5[35] & 0x40) == 0;
    if( (v2 & 1) != 0 )
    {
      v10 = 1i64;
      v5[34] &= ~0x10u;
    }
    else
    {
      v11 = (_QWORD *)qword_140C4EBC0;
      if( qword_140C4EBC0 && ((*((_QWORD *)v5 + 5) >> 60) & 7) == 1 )
      {
        v12 = v3 / 48;
        while( v11 )
        {
          v13 = v11[3];
          if( v12 < v13 )
          {
            v11 = (_QWORD *)*v11;
          }
          else
          {
            if( v12 - v13 < v11[4] )
            {
              v10 = 256i64;
              goto LABEL_16;
            }
            v11 = (_QWORD *)v11[1];
          }
        }
      }
      v10 = 2i64;
    }
LABEL_16:
    MiInsertPageInFreeOrZeroedList(PageFrameIndex, v10);
  }
  else
  {
    v5[34] |= 7u;
    *((_QWORD *)v5 + 3) |= 0x4000000000000000ui64;
  }
  _InterlockedAnd64((volatile signed __int64 *)v5 + 3, 0x7FFFFFFFFFFFFFFFui64);
  __writecr8(v7);
  if( v6 )
    MiFreeLargePageCharges(v8, v6);
  return v6;
}

Referenced by: