ExDisableHandleTracing

void __fastcall ExDisableHandleTracing(__int64 a1){
  _ETHREAD *CurrentThread; 
  __int64 v3; 
  _HANDLE_TRACE_DEBUG_INFO *v4; 
  _ETHREAD *v5; 
  unsigned int SessionId; 
  char v7; 
  int v8; 
  unsigned __int64 v9; 
  bool v10; 
  __int64 v11; 
  __int64 v12; 
  int v13; 
  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  --*((_WORD *)CurrentThread + 242);
  v3 = a1 + 56;
  ExAcquirePushLockExclusiveEx(a1 + 56, 0i64);
  v4 = *(_HANDLE_TRACE_DEBUG_INFO **)(a1 + 96);
  *(_QWORD *)(a1 + 96) = 0i64;
  if( v4 && (v4->BitMaskFlags & 8) == 0 )
    *(_BYTE *)(a1 + 44) &= ~2u;
  if( (_InterlockedExchangeAdd64((volatile signed __int64 *)v3, 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
    ExfTryToWakePushLock((volatile INT64 *)v3);
  v13 = 0;
  v5 = (_ETHREAD *)KeGetCurrentThread();
  if( (unsigned int)MiGetSystemRegionType(v3) == 1 )
    SessionId = MmGetSessionIdEx(*((_QWORD *)v5 + 23));
  else
    SessionId = -1;
  --*((_WORD *)v5 + 243);
  v7 = ++*((_BYTE *)v5 + 794);
  v8 = (*((char *)v5 + 792) | *((char *)v5 + 870)) ^ 0x3F;
  while( 1 )
  {
    v10 = !_BitScanReverse((unsigned int *)&v11, v8);
    if( v10 )
      goto LABEL_16;
    v9 = *((_QWORD *)v5 + 100) + 96 * v11;
    v8 &= ~(1 << v11);
    if( (*(_BYTE *)(v9 + 26) & 1) != 0
      && (*(_DWORD *)(v9 + 32) & 1) == 0
      && (*(_QWORD *)(v9 + 32) & 0x7FFFFFFFFFFFFFFCi64) == (v3 & 0x7FFFFFFFFFFFFFFCi64)
      && *(_DWORD *)(v9 + 40) == SessionId )
    {
      *(_BYTE *)(v9 + 26) &= ~1u;
      if( *(_QWORD *)(v9 + 32) )
        break;
    }
  }
  if( !v9 )
  {
LABEL_16:
    if( (*((_DWORD *)v5 + 30) & 0x10000) == 0 )
      KeBugCheckEx(0x162u, (ULONG_PTR)v5, v3, SessionId, 0i64);
    goto LABEL_23;
  }
  *(_BYTE *)(v9 + 32) |= 2u;
  if( *(__int64 *)(v9 + 32) < 0 )
    KiAbEntryRemoveFromTree(v9);
  v13 = *(_DWORD *)(v9 + 88) & 0x1FFFF;
  *(_DWORD *)(v9 + 88) &= 0xFFFE0000;
  *(_BYTE *)(v9 + 25) &= ~1u;
  *(_QWORD *)(v9 + 32) = 0i64;
  v12 = (__int64)(v9 - *((_QWORD *)v5 + 100)) / 96;
  if( v7 == 1 )
    *((_BYTE *)v5 + 792) |= 1 << v12;
  else
    _InterlockedOr8((volatile signed __int8 *)v5 + 870, 1 << v12);
LABEL_23:
  --*((_BYTE *)v5 + 794);
  KiAbThreadRemoveBoosts((ULONG_PTR)v5, v3, (unsigned int *)&v13);
  v10 = (*((_WORD *)v5 + 243))++ == 0xFFFF;
  if( v10 && *((_ETHREAD **)v5 + 19) != (_ETHREAD *)((char *)v5 + 152) )
    KiCheckForKernelApcDelivery();
  KeLeaveCriticalRegionThread((__int64)CurrentThread);
  if( v4 )
    ExDereferenceHandleDebugInfo((_HANDLE_TABLE *)a1, v4);
}

Referenced by: