PfTSetTraceWorkerPriority

NTSTATUS __stdcall PfTSetTraceWorkerPriority(INT64 CpuPriority){
  KPRIORITY v1; 
  _ETHREAD *CurrentThread; 
  NTSTATUS v3; 
  _ETHREAD *v4; 
  unsigned int SessionId; 
  char v6; 
  int v7; 
  bool v8; 
  __int64 v9; 
  unsigned __int64 v10; 
  __int64 v11; 
  int v13; 
  v1 = CpuPriority;
  if( (unsigned int)CpuPriority > 0x1F )
    return 32;
  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  --*((_WORD *)CurrentThread + 242);
  ExAcquirePushLockExclusiveEx((UINT64)&PfTGlobals, 0i64);
  if( Thread )
    v3 = KeSetPriorityThread(Thread, v1);
  else
    v3 = 33;
  if( (_InterlockedExchangeAdd64((volatile signed __int64 *)&PfTGlobals, 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
    ExfTryToWakePushLock((volatile INT64 *)&PfTGlobals);
  v13 = 0;
  v4 = (_ETHREAD *)KeGetCurrentThread();
  if( (unsigned int)MiGetSystemRegionType((UINT64)&PfTGlobals) == 1 )
    SessionId = MmGetSessionIdEx(*((_QWORD *)v4 + 23));
  else
    SessionId = -1;
  --*((_WORD *)v4 + 243);
  v6 = ++*((_BYTE *)v4 + 794);
  v7 = (*((char *)v4 + 792) | *((char *)v4 + 870)) ^ 0x3F;
  while( 1 )
  {
    v8 = !_BitScanReverse((unsigned int *)&v9, v7);
    if( v8 )
      break;
    v10 = *((_QWORD *)v4 + 100) + 96 * v9;
    v7 &= ~(1 << v9);
    if( (*(_BYTE *)(v10 + 26) & 1) != 0
      && (*(_DWORD *)(v10 + 32) & 1) == 0
      && (*(_QWORD *)(v10 + 32) & 0x7FFFFFFFFFFFFFFCi64) == ((unsigned __int64)&PfTGlobals & 0x7FFFFFFFFFFFFFFCi64)
      && *(_DWORD *)(v10 + 40) == SessionId )
    {
      *(_BYTE *)(v10 + 26) &= ~1u;
      if( *(_QWORD *)(v10 + 32) )
      {
        if( v10 )
        {
          *(_BYTE *)(v10 + 32) |= 2u;
          if( *(__int64 *)(v10 + 32) < 0 )
            KiAbEntryRemoveFromTree(v10);
          v13 = *(_DWORD *)(v10 + 88) & 0x1FFFF;
          *(_DWORD *)(v10 + 88) &= 0xFFFE0000;
          *(_BYTE *)(v10 + 25) &= ~1u;
          *(_QWORD *)(v10 + 32) = 0i64;
          v11 = (__int64)(v10 - *((_QWORD *)v4 + 100)) / 96;
          if( v6 == 1 )
            *((_BYTE *)v4 + 792) |= 1 << v11;
          else
            _InterlockedOr8((volatile signed __int8 *)v4 + 870, 1 << v11);
          goto LABEL_20;
        }
        break;
      }
    }
  }
  if( (*((_DWORD *)v4 + 30) & 0x10000) == 0 )
    KeBugCheckEx(0x162u, (ULONG_PTR)v4, (ULONG_PTR)&PfTGlobals, SessionId, 0i64);
LABEL_20:
  --*((_BYTE *)v4 + 794);
  KiAbThreadRemoveBoosts((ULONG_PTR)v4, (__int64)&PfTGlobals, (unsigned int *)&v13);
  v8 = (*((_WORD *)v4 + 243))++ == 0xFFFF;
  if( v8 && *((_ETHREAD **)v4 + 19) != (_ETHREAD *)((char *)v4 + 152) )
    KiCheckForKernelApcDelivery();
  KeLeaveCriticalRegion();
  return v3;
}

Referenced by: