linux-kernel - Re: [PATCH v2 1/2] perf pmus: Add notion of default PMU for JSON events

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Message-ID: <CAM9d7cgkNzJ-18F3cg2hP+x5ME0duVKtBhsBJ_Zs-6hC4mi4jg@mail.gmail.com>
Date:   Fri, 23 Jun 2023 11:04:29 -0700
From:   Namhyung Kim <namhyung@...nel.org>
To:     Ian Rogers <irogers@...gle.com>
Cc:     Thomas Richter <tmricht@...ux.ibm.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        James Clark <james.clark@....com>,
        Ravi Bangoria <ravi.bangoria@....com>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] perf pmus: Add notion of default PMU for JSON events

On Thu, Jun 22, 2023 at 9:38 PM Ian Rogers <irogers@...gle.com> wrote:
>
> JSON events created in pmu-events.c by jevents.py may not specify a
> PMU they are associated with, in which case it is implied that it is
> the first core PMU. Care is needed to select this for regular 'cpu',
> s390 'cpum_cf' and ARMs many names as at the point the name is first
> needed the core PMUs list hasn't been initialized. Add a helper in
> perf_pmus to create this value, in the worst case by scanning sysfs.
>
> Signed-off-by: Ian Rogers <irogers@...gle.com>
> Tested-by: Thomas Richter <tmricht@...ux.ibm.com>
>
> v2. Add missing close if fdopendir fails.

Applied both to perf-tools-next after moving this v2 line, thanks!