ExGetCallBackBlockRoutine

INT64 __fastcall ExGetCallBackBlockRoutine(INT64 a1){
  return *(_QWORD *)(a1 + 8);
}

Referenced by:

MiAllocateUserPhysicalPages
MiComputeAweCharges
MiCreateAweInfoBitMap
MiDeleteAweInfoPages
MiGetAweVadPageSize
MiReferenceIncomingPhysicalPages
MiScrubProcessPhysicalPages
NtFreeUserPhysicalPages
NtMapUserPhysicalPages
NtMapUserPhysicalPagesScatter