linux-kernel - Re: [PATCH v3 01/22] perf cpumap: Migrate to libperf cpumap api

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Date:   Fri, 11 Feb 2022 14:02:56 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ian Rogers <irogers@...gle.com>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Darren Hart <dvhart@...radead.org>,
        Davidlohr Bueso <dave@...olabs.net>,
        André Almeida <andrealmeid@...labora.com>,
        James Clark <james.clark@....com>,
        John Garry <john.garry@...wei.com>,
        Riccardo Mancini <rickyman7@...il.com>,
        Yury Norov <yury.norov@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Jin Yao <yao.jin@...ux.intel.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Leo Yan <leo.yan@...aro.org>, Andi Kleen <ak@...ux.intel.com>,
        Thomas Richter <tmricht@...ux.ibm.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Madhavan Srinivasan <maddy@...ux.ibm.com>,
        Shunsuke Nakamura <nakamura.shun@...itsu.com>,
        Song Liu <song@...nel.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Miaoqian Lin <linmq006@...il.com>,
        Stephen Brennan <stephen.s.brennan@...cle.com>,
        Kajol Jain <kjain@...ux.ibm.com>,
        Alexey Bayduraev <alexey.v.bayduraev@...ux.intel.com>,
        German Gomez <german.gomez@....com>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        Eric Dumazet <edumazet@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Hao Luo <haoluo@...gle.com>, eranian@...gle.com
Subject: Re: [PATCH v3 01/22] perf cpumap: Migrate to libperf cpumap api

Em Fri, Feb 11, 2022 at 02:33:54AM -0800, Ian Rogers escreveu:
> Switch from directly accessing the perf_cpu_map to using the appropriate
> libperf API when possible. Using the API simplifies the job of
> refactoring use of perf_cpu_map.

Thanks, applied.

- Arnaldo

 
> Signed-off-by: Ian Rogers <irogers@...gle.com>
> ---
>  tools/perf/tests/cpumap.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/tools/perf/tests/cpumap.c b/tools/perf/tests/cpumap.c
> index 84e87e31f119..f94929ebb54b 100644
> --- a/tools/perf/tests/cpumap.c
> +++ b/tools/perf/tests/cpumap.c
> @@ -35,10 +35,10 @@ static int process_event_mask(struct perf_tool *tool __maybe_unused,
>  	}
>  
>  	map = cpu_map__new_data(data);
> -	TEST_ASSERT_VAL("wrong nr",  map->nr == 20);
> +	TEST_ASSERT_VAL("wrong nr",  perf_cpu_map__nr(map) == 20);
>  
>  	for (i = 0; i < 20; i++) {
> -		TEST_ASSERT_VAL("wrong cpu", map->map[i].cpu == i);
> +		TEST_ASSERT_VAL("wrong cpu", perf_cpu_map__cpu(map, i).cpu == i);
>  	}
>  
>  	perf_cpu_map__put(map);
> @@ -66,9 +66,9 @@ static int process_event_cpus(struct perf_tool *tool __maybe_unused,
>  	TEST_ASSERT_VAL("wrong cpu",  cpus->cpu[1] == 256);
>  
>  	map = cpu_map__new_data(data);
> -	TEST_ASSERT_VAL("wrong nr",  map->nr == 2);
> -	TEST_ASSERT_VAL("wrong cpu", map->map[0].cpu == 1);
> -	TEST_ASSERT_VAL("wrong cpu", map->map[1].cpu == 256);
> +	TEST_ASSERT_VAL("wrong nr",  perf_cpu_map__nr(map) == 2);
> +	TEST_ASSERT_VAL("wrong cpu", perf_cpu_map__cpu(map, 0).cpu == 1);
> +	TEST_ASSERT_VAL("wrong cpu", perf_cpu_map__cpu(map, 1).cpu == 256);
>  	TEST_ASSERT_VAL("wrong refcnt", refcount_read(&map->refcnt) == 1);
>  	perf_cpu_map__put(map);
>  	return 0;
> @@ -130,7 +130,7 @@ static int test__cpu_map_merge(struct test_suite *test __maybe_unused, int subte
>  	struct perf_cpu_map *c = perf_cpu_map__merge(a, b);
>  	char buf[100];
>  
> -	TEST_ASSERT_VAL("failed to merge map: bad nr", c->nr == 5);
> +	TEST_ASSERT_VAL("failed to merge map: bad nr", perf_cpu_map__nr(c) == 5);
>  	cpu_map__snprint(c, buf, sizeof(buf));
>  	TEST_ASSERT_VAL("failed to merge map: bad result", !strcmp(buf, "1-2,4-5,7"));
>  	perf_cpu_map__put(b);
> -- 
> 2.35.1.265.g69c8d7142f-goog

-- 

- Arnaldo