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>

1 files changed, 3 insertions, 6 deletions

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 0955cff5b0ef..f080cc40f00b 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -649,9 +649,7 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st
 
                 next = disasm__get_next_ip_line(&notes->src->source, dl);
 
-                if (symbol_conf.event_group &&
-                    perf_evsel__is_group_leader(evsel) &&
-                    evsel->nr_members > 1) {
+                if (perf_evsel__is_group_event(evsel)) {
                         nr_percent = evsel->nr_members;
                         ppercents = calloc(nr_percent, sizeof(double));
                         if (ppercents == NULL)
@@ -721,8 +719,7 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st
                 if (queue)
                         return -1;
 
-                if (symbol_conf.event_group &&
-                    perf_evsel__is_group_leader(evsel))
+                if (perf_evsel__is_group_event(evsel))
                         width *= evsel->nr_members;
 
                 if (!*dl->line)
@@ -1126,7 +1123,7 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map,
         len = symbol__size(sym);
         namelen = strlen(d_filename);
 
-        if (symbol_conf.event_group && perf_evsel__is_group_leader(evsel))
+        if (perf_evsel__is_group_event(evsel))
                 width *= evsel->nr_members;
 
         printf(" %-*.*s|        Source code & Disassembly of %s\n",