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perf stat: Replace MAX_NR_CPUS with cpu__max_cpu()

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The function cpu__max_cpu() returns the possible number of CPUs as
defined in the sysfs and can be used as an alternative for MAX_NR_CPUS
in zero_per_pkg() and check_per_pkg().

Signed-off-by: Kyle Meyer <kyle.meyer@hpe.com>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russ Anderson <russ.anderson@hpe.com>
Link: http://lore.kernel.org/lkml/20190827214352.94272-4-meyerk@stormcage.eag.rdlabs.hpecorp.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Kyle Meyer 2019-08-27 16:43:48 -05:00 committed by Arnaldo Carvalho de Melo
parent f78f96676a
commit 92b5a1545a
1 changed files with 2 additions and 2 deletions
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4
tools/perf/util/stat.c
View file

@ -210,7 +210,7 @@ void perf_evlist__reset_stats(struct evlist *evlist)
static void zero_per_pkg(struct evsel *counter)
{
if (counter->per_pkg_mask)
memset(counter->per_pkg_mask, 0, MAX_NR_CPUS);
memset(counter->per_pkg_mask, 0, cpu__max_cpu());
}
static int check_per_pkg(struct evsel *counter,
@ -229,7 +229,7 @@ static int check_per_pkg(struct evsel *counter,
return 0;
if (!mask) {
mask = zalloc(MAX_NR_CPUS);
mask = zalloc(cpu__max_cpu());
if (!mask)
return -ENOMEM;