> > > Right. When code reaches to here, we already passed reclaim per cgroup. Yes if try_charge() failed we must do pre-cgroup reclaim. > The cgroup may not at or reach limit but system has run out of physical > EPC. > But after try_charge() we can still choose to reclaim from the current group, but not necessarily have to be global, right? I am not sure whether I am missing something, but could you elaborate why we should choose to reclaim from the global?
