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authorNamhyung Kim <namhyung.kim@lge.com>2013-05-14 11:09:02 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-05-28 16:24:00 +0300
commit27a0dcb7adb52473dd98d285a46b764b9219d303 (patch)
tree52deb89bf5ef67e3749b2e2a026837a76f93d3f2 /tools/perf/builtin-top.c
parent3a5714f8b58913ded4d9e90abdd30e7e5993f863 (diff)
downloadop-kernel-dev-27a0dcb7adb52473dd98d285a46b764b9219d303.zip
op-kernel-dev-27a0dcb7adb52473dd98d285a46b764b9219d303.tar.gz
perf hists: Move locking to its call-sites
It's a preparation patch to eliminate unneeded locking in the perf report path. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1368497347-9628-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-top.c')
-rw-r--r--tools/perf/builtin-top.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 5cd41ec..c2c9734 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -245,8 +245,11 @@ static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel,
{
struct hist_entry *he;
+ pthread_mutex_lock(&evsel->hists.lock);
he = __hists__add_entry(&evsel->hists, al, NULL, sample->period,
sample->weight);
+ pthread_mutex_unlock(&evsel->hists.lock);
+
if (he == NULL)
return NULL;
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