MiRemovePlaceholderVad

VOID __stdcall MiRemovePlaceholderVad(RTL_BALANCED_NODE *Node){
  _ETHREAD *CurrentThread; 
  INT64 v3; 
  ULONG_PTR v4; 
  INT64 *SharedVm; 
  KIRQL v6; 
  UINT8 v7; 
  _ETHREAD *v8; 
  unsigned int SessionId; 
  char v10; 
  int v11; 
  unsigned __int64 v12; 
  bool v13; 
  __int64 v14; 
  __int64 v15; 
  int v16; 
  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  v3 = *((_QWORD *)CurrentThread + 23);
  --*((_WORD *)CurrentThread + 243);
  v4 = v3 + 1232;
  ExAcquirePushLockExclusiveEx(v3 + 1232, 0i64);
  SharedVm = MiGetSharedVm(v3 + 1664);
  v6 = ExAcquireSpinLockExclusive((PEX_SPIN_LOCK)SharedVm);
  *((_DWORD *)SharedVm + 1) = 0;
  v7 = v6;
  MiRemoveVad(Node, v3);
  MiUnlockWorkingSetExclusive(v3 + 1664, v7);
  if( (_InterlockedExchangeAdd64((volatile signed __int64 *)(v3 + 1232), 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
    ExfTryToWakePushLock((volatile INT64 *)(v3 + 1232));
  v16 = 0;
  v8 = (_ETHREAD *)KeGetCurrentThread();
  if( (unsigned int)MiGetSystemRegionType(v3 + 1232) == 1 )
    SessionId = MmGetSessionIdEx(*((_QWORD *)v8 + 23));
  else
    SessionId = -1;
  --*((_WORD *)v8 + 243);
  v10 = ++*((_BYTE *)v8 + 794);
  v11 = (*((char *)v8 + 792) | *((char *)v8 + 870)) ^ 0x3F;
  while( 1 )
  {
    v13 = !_BitScanReverse((unsigned int *)&v14, v11);
    if( v13 )
      goto LABEL_13;
    v12 = *((_QWORD *)v8 + 100) + 96 * v14;
    v11 &= ~(1 << v14);
    if( (*(_BYTE *)(v12 + 26) & 1) != 0
      && (*(_DWORD *)(v12 + 32) & 1) == 0
      && (*(_QWORD *)(v12 + 32) & 0x7FFFFFFFFFFFFFFCi64) == (v4 & 0x7FFFFFFFFFFFFFFCi64)
      && *(_DWORD *)(v12 + 40) == SessionId )
    {
      *(_BYTE *)(v12 + 26) &= ~1u;
      if( *(_QWORD *)(v12 + 32) )
        break;
    }
  }
  if( !v12 )
  {
LABEL_13:
    if( (*((_DWORD *)v8 + 30) & 0x10000) == 0 )
      KeBugCheckEx(0x162u, (ULONG_PTR)v8, v4, SessionId, 0i64);
    goto LABEL_20;
  }
  *(_BYTE *)(v12 + 32) |= 2u;
  if( *(__int64 *)(v12 + 32) < 0 )
    KiAbEntryRemoveFromTree(v12);
  v16 = *(_DWORD *)(v12 + 88) & 0x1FFFF;
  *(_DWORD *)(v12 + 88) &= 0xFFFE0000;
  *(_BYTE *)(v12 + 25) &= ~1u;
  *(_QWORD *)(v12 + 32) = 0i64;
  v15 = (__int64)(v12 - *((_QWORD *)v8 + 100)) / 96;
  if( v10 == 1 )
    *((_BYTE *)v8 + 792) |= 1 << v15;
  else
    _InterlockedOr8((volatile signed __int8 *)v8 + 870, 1 << v15);
LABEL_20:
  --*((_BYTE *)v8 + 794);
  KiAbThreadRemoveBoosts((ULONG_PTR)v8, v4, (unsigned int *)&v16);
  v13 = (*((_WORD *)v8 + 243))++ == 0xFFFF;
  if( v13 && *((_ETHREAD **)v8 + 19) != (_ETHREAD *)((char *)v8 + 152) )
    KiCheckForKernelApcDelivery();
  KiLeaveGuardedRegionUnsafe((__int64)CurrentThread);
}

Referenced by: