The following commit has been merged into the perf/core branch of tip:
Commit-ID: 92b5a1545ad51e8225e691e9a29ba33cc9fe37bc
Gitweb: https://git.kernel.org/tip/92b5a1545ad51e8225e691e9a29ba33cc9fe37bc
Author: Kyle Meyer <meyerk@xxxxxxx>
AuthorDate: Tue, 27 Aug 2019 16:43:48 -05:00
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitterDate: Thu, 29 Aug 2019 17:38:32 -03:00
perf stat: Replace MAX_NR_CPUS with cpu__max_cpu()
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@xxxxxxx>
Reviewed-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Russ Anderson <russ.anderson@xxxxxxx>
Link: http://lore.kernel.org/lkml/20190827214352.94272-4-meyerk@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/stat.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 66f8808..f6eb6af 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -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;
|