PspSetProcessPriorityByClass

INT64 __fastcall PspSetProcessPriorityByClass(INT64 a1, INT64 a2){
  unsigned int v3; 
  INT64 result; 
  UINT64 ApplyForegroundBoost; 
  CHAR QuantumReset; 
  UINT64 v7; 
  UINT64 ResetForegroundBoost; 
  LODWORD(v7) = 0;
  QuantumReset = 0;
  LODWORD(ResetForegroundBoost) = 0;
  v3 = PspComputeQuantumAndPriority(a1, a2, &QuantumReset, &ResetForegroundBoost, &v7);
  LODWORD(ApplyForegroundBoost) = v7;
  LODWORD(result) = KeSetPriorityAndQuantumProcess(
                      (_KPROCESS *)a1,
                      v3,
                      QuantumReset,
                      (unsigned int)ResetForegroundBoost,
                      ApplyForegroundBoost);
  return result;
}

Referenced by:

PsSetProcessPriorityByClass
PspApplyJobLimitsToProcess
PspSetProcessForegroundBackgroundRequest