perf evsel: Introduce perf_evsel__is_group_event() helper
The perf_evsel__is_group_event function is for checking whether given
evsel needs event group view support or not. Please note that it's
different to the existing perf_evsel__is_group_leader() which checks
only the given evsel is a leader or a standalone (i.e. non-group) event
regardless of event group feature.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1362462812-30885-7-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index 1e764a8..6f259b3 100644
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -32,21 +32,18 @@
int ret;
double percent = 0.0;
struct hists *hists = he->hists;
+ struct perf_evsel *evsel = hists_to_evsel(hists);
if (hists->stats.total_period)
percent = 100.0 * get_field(he) / hists->stats.total_period;
ret = __percent_color_snprintf(hpp->buf, hpp->size, percent);
- if (symbol_conf.event_group) {
+ if (perf_evsel__is_group_event(evsel)) {
int prev_idx, idx_delta;
- struct perf_evsel *evsel = hists_to_evsel(hists);
struct hist_entry *pair;
int nr_members = evsel->nr_members;
- if (nr_members <= 1)
- return ret;
-
prev_idx = perf_evsel__group_idx(evsel);
list_for_each_entry(pair, &he->pairs.head, pairs.node) {