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authorNamhyung Kim <namhyung.kim@lge.com>2012-11-29 07:38:29 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-12-09 12:46:06 +0100
commit2cfda562da7b0b1e0575507ef3efe782d4e218e4 (patch)
tree11f13646a8409dc2e66a3fc4bd4dad26d93eeb83
parentperf hists: Link hist entry pairs to leader (diff)
downloadlinux-2cfda562da7b0b1e0575507ef3efe782d4e218e4.tar.xz
linux-2cfda562da7b0b1e0575507ef3efe782d4e218e4.zip
perf evsel: Set leader evsel's ->leader to itself
Currently only non-leader members are set ->leader to the leader evsel of the group and the leader has set NULL. Thus it requires special casing for leader evsels. Set ->leader to itself will remove this. Suggested-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> 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/1354171126-14387-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/util/evlist.c1
-rw-r--r--tools/perf/util/evsel.c1
-rw-r--r--tools/perf/util/evsel.h2
3 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 705293489e3c..90db2a14e4bb 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -111,7 +111,6 @@ void __perf_evlist__set_leader(struct list_head *list)
struct perf_evsel *evsel, *leader;
leader = list_entry(list->next, struct perf_evsel, node);
- leader->leader = NULL;
list_for_each_entry(evsel, list, node) {
if (evsel != leader)
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 1b16dd1edc8e..7e93418a45d1 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -55,6 +55,7 @@ void perf_evsel__init(struct perf_evsel *evsel,
{
evsel->idx = idx;
evsel->attr = *attr;
+ evsel->leader = evsel;
INIT_LIST_HEAD(&evsel->node);
hists__init(&evsel->hists);
evsel->sample_size = __perf_evsel__sample_size(attr->sample_type);
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 3d2b8017438c..cbf6d97f0646 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -228,6 +228,6 @@ static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel)
static inline bool perf_evsel__is_group_member(const struct perf_evsel *evsel)
{
- return evsel->leader != NULL;
+ return evsel->leader != evsel;
}
#endif /* __PERF_EVSEL_H */