IopPerfCompleteRequest

VOID __stdcall IopPerfCompleteRequest(_IRP *Irp, INT8 PriorityBoost){
  bool v2; 
  char StackCount; 
  char CurrentLocation; 
  __int64 CompletionRoutine; 
  _IO_STACK_LOCATION *CurrentStackLocation; 
  _IRP *v9; 
  _DRIVER_OBJECT *DriverObject; 
  __int64 MajorFunction; 
  signed __int32 v12; 
  bool v13; 
  char Control; 
  __int128 v15; 
  __int128 v16; 
  _IRP *v17; 
  int v18; 
  __int64 v19[2]; 
  int v20; 
  __int64 *v21; 
  int v22; 
  int v23; 
  _IRP **v24; 
  int v25; 
  int v26; 

  v2 = Irp->Type == 6;
  v15 = 0i64;
  v16 = 0i64;
  if( v2 )
  {
    StackCount = Irp->StackCount;
    CurrentLocation = Irp->CurrentLocation;
    if( CurrentLocation <= (char)(StackCount + 1) )
    {
      CompletionRoutine = 0i64;
      CurrentStackLocation = 0i64;
      if( CurrentLocation <= StackCount )
      {
        CurrentStackLocation = Irp->Tail.CurrentStackLocation;
        if( CurrentStackLocation->DeviceObject )
        {
          if( (IopPerfStatus & 2) != 0 && IopIrpHasExtensionType(Irp, 1ui64) && !IopIrpHasExtensionType(v9, 4ui64) )
          {
            IopProcessIoTracking(
              *(_QWORD *)&KUSER_SHARED_DATA.SystemTime.LowPart - *((_QWORD *)Irp->Tail.IrpExtension + 5),
              CurrentStackLocation->DeviceObject->DeviceType);
            IopFreeIrpExtension(Irp, IopTimestampType, 1u);
          }
          DriverObject = CurrentStackLocation->DeviceObject->DriverObject;
          if( DriverObject )
          {
            MajorFunction = CurrentStackLocation->MajorFunction;
            if( (unsigned __int8)MajorFunction <= 0x1Bu )
              CompletionRoutine = (__int64)DriverObject->MajorFunction[MajorFunction];
          }
        }
        else
        {
          CompletionRoutine = (__int64)CurrentStackLocation->CompletionRoutine;
        }
      }
      if( (IopPerfStatus & 1) != 0 )
      {
        v23 = 0;
        v19[0] = CompletionRoutine;
        v19[1] = (__int64)Irp;
        v12 = _InterlockedIncrement((_DWORD *)&stru_140C452E0 + 202);
        v20 = v12;
        v21 = v19;
        v22 = 20;
        EtwTraceKernelEvent((__int64)&v21, 1u, 0x20000010u, 0x134u, 0x401802u);
        if( !CurrentStackLocation )
        {
LABEL_19:
          IopfCompleteRequest(Irp, PriorityBoost);
          v26 = 0;
          v24 = &v17;
          v17 = Irp;
          v18 = v12;
          v25 = 12;
          EtwTraceKernelEvent((__int64)&v24, 1u, 0x20000010u, 0x135u, 0x401802u);
          return;
        }
        v13 = Irp->IoStatus.Status < 0;
        *((_QWORD *)&v15 + 1) = CurrentStackLocation->Context;
        *(_QWORD *)&v15 = CurrentStackLocation;
        DWORD2(v16) = v12;
        BYTE12(v16) = CurrentStackLocation->Control;
        Control = CurrentStackLocation->Control;
        if( v13 )
        {
          if( Control < 0 )
            goto LABEL_17;
        }
        else if( (Control & 0x40) != 0 )
        {
          goto LABEL_17;
        }
        if( !Irp->Cancel || (Control & 0x20) == 0 )
        {
          CurrentStackLocation->Control = Control | 0xC0;
          goto LABEL_18;
        }
LABEL_17:
        *(_QWORD *)&v16 = CurrentStackLocation->CompletionRoutine;
        *((_QWORD *)&v15 + 1) = CurrentStackLocation->Context;
LABEL_18:
        CurrentStackLocation->CompletionRoutine = (int(__fastcall *)(_DEVICE_OBJECT *, _IRP *, void *))IopPerfCompletionRoutine;
        CurrentStackLocation->Context = &v15;
        goto LABEL_19;
      }
    }
  }
  IopfCompleteRequest(Irp, PriorityBoost);
}

Referenced by: