EtwpGetReserveTraceBufferStatus

__int64 __fastcall EtwpGetReserveTraceBufferStatus(__int64 a1, unsigned int a2){
  if( a2 > 0xFFF8 )
    return 3221225621i64;
  else
    return *(_DWORD *)(a1 + 8) < a2 ? -2147483643 : -1073741801;
}

Referenced by:

EtwTraceEvent
EtwTraceRaw
EtwpEventWriteFull
EtwpTraceMessageVa
EtwpWriteUserEvent