FsRtlFreeExtraCreateParameter

VOID __stdcall FsRtlFreeExtraCreateParameter(PVOID EcpContext){
  void(__fastcall *v1)(PVOID, char *); 
  __int64 v2; 
  __int64 v4; 
  v1 = (void(__fastcall *)(PVOID, char *))*((_QWORD *)EcpContext - 4);
  v2 = 0i64;
  if( v1 )
    v1(EcpContext, (char *)EcpContext - 48);
  if( (*((_DWORD *)EcpContext - 6) & 0x20) != 0 && FltMgrCallbacks )
  {
    v2 = *((_QWORD *)EcpContext - 1);
    (*(void(__fastcall **)(__int64, PVOID))FltMgrCallbacks)(v2, EcpContext);
  }
  v4 = *((_QWORD *)EcpContext - 2);
  if( v4 )
  {
    if( (*((_DWORD *)EcpContext - 6) & 0x40) != 0 )
    {
      ExFreeToNPagedLookasideList((NPAGED_LOOKASIDE_LIST *)v4, (char *)EcpContext - 72);
    }
    else
    {
      ++*(_DWORD *)(v4 + 28);
      if( *(_WORD *)v4 >= *(_WORD *)(v4 + 16) )
      {
        ++*(_DWORD *)(v4 + 32);
        (*(void(__fastcall **)(char *))(v4 + 56))((char *)EcpContext - 72);
      }
      else
      {
        RtlpInterlockedPushEntrySList((PSLIST_HEADER)v4, (PSLIST_ENTRY)((char *)EcpContext - 72));
      }
    }
  }
  else
  {
    ExFreePoolWithTag((char *)EcpContext - 72, 0);
  }
  if( v2 )
    (*(void(__fastcall **)(__int64))(FltMgrCallbacks + 8))(v2);
}

Referenced by: