MiIsWorkingSetTrimThread

BOOL __stdcall MiIsWorkingSetTrimThread(){
  VOID(__stdcall *Blink)(VOID *); 

  Blink = (VOID(__stdcall *)(VOID *))KeGetCurrentThread()[1].ApcState.ApcListHead[0].Blink;
  return Blink == KeBalanceSetManager || (char *)Blink == (char *)MiPartitionWorkingSetManager;
}

Referenced by:

MiFlushAllFilesystemPages
MiSystemFault
MmAddRangeToCrashDump