linux-kernel - Re: [PATCH v5 12/13] perf evsel: Add functions to enable/disable for a specific CPU

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Date:   Mon, 11 Nov 2019 14:30:40 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     Andi Kleen <andi@...stfloor.org>
Cc:     jolsa@...nel.org, acme@...nel.org, linux-kernel@...r.kernel.org,
        Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH v5 12/13] perf evsel: Add functions to enable/disable for
 a specific CPU

On Thu, Nov 07, 2019 at 10:16:45AM -0800, Andi Kleen wrote:

SNIP

> diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
> index 7106f9a067df..79050a6f4991 100644
> --- a/tools/perf/util/evsel.c
> +++ b/tools/perf/util/evsel.c
> @@ -1205,13 +1205,26 @@ int perf_evsel__append_addr_filter(struct evsel *evsel, const char *filter)
>  	return perf_evsel__append_filter(evsel, "%s,%s", filter);
>  }
>  
> +/* Caller has to clear disabled after going through all CPUs. */
> +int evsel__enable_cpu(struct evsel *evsel, int cpu)
> +{
> +	int err = perf_evsel__enable_cpu(&evsel->core, cpu);
> +	return err;

	return perf_evsel__enable_cpu(... ?

> +}
> +
>  int evsel__enable(struct evsel *evsel)
>  {
>  	int err = perf_evsel__enable(&evsel->core);
>  
>  	if (!err)
>  		evsel->disabled = false;
> +	return err;
> +}
>  
> +/* Caller has to set disabled after going through all CPUs. */
> +int evsel__disable_cpu(struct evsel *evsel, int cpu)
> +{
> +	int err = perf_evsel__disable_cpu(&evsel->core, cpu);
>  	return err;

	return perf_evsel__disable_cpu(... ?

jirka