perf tools: Omit group members from perf_evlist__disable/enable

There's no need to disable/enable ordinary group member events,
because they are initialy enabled and get scheduled by the leader.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1352741644-16809-5-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 04acae0ce6976d7ca09759936f93c23f563f1758..e9d2d5da2fb888e4dab937d7326c65a8939b5929 100644 (file)
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -222,6 +222,8 @@ void perf_evlist__disable(struct perf_evlist *evlist)
 
        for (cpu = 0; cpu < evlist->cpus->nr; cpu++) {
                list_for_each_entry(pos, &evlist->entries, node) {
+                       if (pos->leader)
+                               continue;
                        for (thread = 0; thread < evlist->threads->nr; thread++)
                                ioctl(FD(pos, cpu, thread),
                                      PERF_EVENT_IOC_DISABLE, 0);
@@ -236,6 +238,8 @@ void perf_evlist__enable(struct perf_evlist *evlist)
 
        for (cpu = 0; cpu < cpu_map__nr(evlist->cpus); cpu++) {
                list_for_each_entry(pos, &evlist->entries, node) {
+                       if (pos->leader)
+                               continue;
                        for (thread = 0; thread < evlist->threads->nr; thread++)
                                ioctl(FD(pos, cpu, thread),
                                      PERF_EVENT_IOC_ENABLE, 0);