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perf evsel: Set leader evsel's ->leader to itself

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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>
This commit is contained in:
Namhyung Kim 2012-11-29 15:38:29 +09:00 committed by Arnaldo Carvalho de Melo
parent 5fa9041bba
commit 2cfda562da
3 changed files with 2 additions and 2 deletions
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1
tools/perf/util/evlist.c
View file

@ -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)

1
tools/perf/util/evsel.c
View file

@ -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);

2
tools/perf/util/evsel.h
View file

@ -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 */