linux-kernel - Re: [PATCH 13/25] perf stat: Move perf_evsel__(alloc|free|reset)_stat

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Date:	Wed, 10 Jun 2015 15:49:25 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Jiri Olsa <jolsa@...nel.org>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Andi Kleen <ak@...ux.intel.com>,
	David Ahern <dsahern@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 13/25] perf stat: Move
 perf_evsel__(alloc|free|reset)_stat_priv into evsel object

Em Wed, Jun 10, 2015 at 08:10:46PM +0200, Jiri Olsa escreveu:
> Moving perf_evsel__(alloc|free|reset)_stat_priv into evsel object,
> so it could be used outside stat object in following patches.
 
> +++ b/tools/perf/util/evsel.c
  
> +void perf_evsel__reset_stat_priv(struct perf_evsel *evsel)
> +{
> +	int i;
> +	struct perf_stat *ps = evsel->priv;
> +
> +	for (i = 0; i < 3; i++)
> +		init_stats(&ps->res_stats[i]);
> +
> +	perf_stat_evsel_id_init(evsel);
> +}

Please move this to some 'stat' specific place, so that evsel.c has
nothing that is tool specific, like references to 'struct perf_stat'.

- Arnaldo

> +int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel)
> +{
> +	evsel->priv = zalloc(sizeof(struct perf_stat));
> +	if (evsel->priv == NULL)
> +		return -ENOMEM;
> +	perf_evsel__reset_stat_priv(evsel);
> +	return 0;
> +}
> +
> +void perf_evsel__free_stat_priv(struct perf_evsel *evsel)
> +{
> +	zfree(&evsel->priv);
> +}
> +
>  struct perf_counts *perf_counts__alloc(int ncpus, int nthreads)
>  {
>  	struct perf_counts *counts = zalloc(sizeof(*counts));
> diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
> index 0d495bd161c3..051175098f0b 100644
> --- a/tools/perf/util/evsel.h
> +++ b/tools/perf/util/evsel.h
> @@ -192,6 +192,11 @@ int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size);
>  
>  int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
>  int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus, int nthreads);
> +
> +void perf_evsel__reset_stat_priv(struct perf_evsel *evsel);
> +int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel);
> +void perf_evsel__free_stat_priv(struct perf_evsel *evsel);
> +
>  void perf_evsel__reset_counts(struct perf_evsel *evsel);
>  void perf_evsel__free_counts(struct perf_evsel *evsel);
>  void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
> -- 
> 1.9.3
--
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