Re: [PATCH 4/4 v3] perf stat: Add transaction flag (-T) support for s390

From: Andi Kleen
Date: Mon Jun 25 2018 - 16:33:59 EST


> > +bool metricgroup__has_metric(const char *metric)
> > +{
> > + struct pmu_events_map *map = perf_pmu__find_map(NULL);
> > + struct pmu_event *pe;
> > + int i;
> > +
> > + if (!map)
> > + return false;
> > +
> > + for (i = 0; ; i++) {
> > + pe = &map->table[i];
> > +
> > + if (!pe->name && !pe->metric_group && !pe->metric_name)
> > + break;
> > + if (!pe->metric_expr)
> > + continue;
> > + if (match_metric(pe->metric_group, metric) ||
> > + match_metric(pe->metric_name, metric))

Why both the group and the metric?

I would just match the metric_name

Otherwise it's impossible to have a group called "transaction"

With that fixed it's ok for me.

Acked-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>

-Andi