linux-kernel - Re: [PATCH 12/19] perf metric: Add events for the current list

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Date:   Tue, 28 Jul 2020 09:33:46 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ian Rogers <irogers@...gle.com>
Cc:     Jiri Olsa <jolsa@...nel.org>, lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Michael Petlan <mpetlan@...hat.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Kajol Jain <kjain@...ux.ibm.com>,
        John Garry <john.garry@...wei.com>,
        "Paul A. Clarke" <pc@...ibm.com>,
        Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 12/19] perf metric: Add events for the current list

Em Sun, Jul 19, 2020 at 03:34:48PM -0700, Ian Rogers escreveu:
> On Sun, Jul 19, 2020 at 11:14 AM Jiri Olsa <jolsa@...nel.org> wrote:
> >
> > There's no need to iterate the whole list of groups,
> > when adding new events. The currently created groups
> > are the ones we want to add.
> >
> > Signed-off-by: Jiri Olsa <jolsa@...nel.org>
> 
> Acked-by: Ian Rogers <irogers@...gle.com>

Thanks, applied.

- Arnaldo
 
> Thanks,
> Ian
> 
> > ---
> >  tools/perf/util/metricgroup.c | 9 ++++++---
> >  1 file changed, 6 insertions(+), 3 deletions(-)
> >
> > diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
> > index bb5757b9419d..332414d93f7a 100644
> > --- a/tools/perf/util/metricgroup.c
> > +++ b/tools/perf/util/metricgroup.c
> > @@ -813,6 +813,7 @@ static int metricgroup__add_metric(const char *metric, bool metric_no_group,
> >  {
> >         struct pmu_event *pe;
> >         struct egroup *eg;
> > +       LIST_HEAD(list);
> >         int i, ret;
> >         bool has_match = false;
> >
> > @@ -820,7 +821,7 @@ static int metricgroup__add_metric(const char *metric, bool metric_no_group,
> >                 has_match = true;
> >                 eg = NULL;
> >
> > -               ret = add_metric(group_list, pe, metric_no_group, &eg);
> > +               ret = add_metric(&list, pe, metric_no_group, &eg);
> >                 if (ret)
> >                         return ret;
> >
> > @@ -829,7 +830,7 @@ static int metricgroup__add_metric(const char *metric, bool metric_no_group,
> >                  * included in the expression.
> >                  */
> >                 ret = resolve_metric(eg, metric_no_group,
> > -                                    group_list, map);
> > +                                    &list, map);
> >                 if (ret)
> >                         return ret;
> >         }
> > @@ -838,7 +839,7 @@ static int metricgroup__add_metric(const char *metric, bool metric_no_group,
> >         if (!has_match)
> >                 return -EINVAL;
> >
> > -       list_for_each_entry(eg, group_list, nd) {
> > +       list_for_each_entry(eg, &list, nd) {
> >                 if (events->len > 0)
> >                         strbuf_addf(events, ",");
> >
> > @@ -850,6 +851,8 @@ static int metricgroup__add_metric(const char *metric, bool metric_no_group,
> >                                                            &eg->pctx);
> >                 }
> >         }
> > +
> > +       list_splice(&list, group_list);
> >         return 0;
> >  }
> >
> > --
> > 2.25.4
> >

-- 

- Arnaldo