perf sched: Simplify arguments to read_events
Destroy argument is not necessary. If session is not returned to caller,
then clean it up.
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1375930261-77273-3-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 948183a..34ce57d 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1445,7 +1445,7 @@
return err;
}
-static int perf_sched__read_events(struct perf_sched *sched, bool destroy,
+static int perf_sched__read_events(struct perf_sched *sched,
struct perf_session **psession)
{
const struct perf_evsel_str_handler handlers[] = {
@@ -1480,11 +1480,10 @@
sched->nr_lost_chunks = session->stats.nr_events[PERF_RECORD_LOST];
}
- if (destroy)
- perf_session__delete(session);
-
if (psession)
*psession = session;
+ else
+ perf_session__delete(session);
return 0;
@@ -1529,8 +1528,11 @@
struct perf_session *session;
setup_pager();
- if (perf_sched__read_events(sched, false, &session))
+
+ /* save session -- references to threads are held in work_list */
+ if (perf_sched__read_events(sched, &session))
return -1;
+
perf_sched__sort_lat(sched);
printf("\n ---------------------------------------------------------------------------------------------------------------\n");
@@ -1565,7 +1567,7 @@
sched->max_cpu = sysconf(_SC_NPROCESSORS_CONF);
setup_pager();
- if (perf_sched__read_events(sched, true, NULL))
+ if (perf_sched__read_events(sched, NULL))
return -1;
print_bad_events(sched);
return 0;
@@ -1580,7 +1582,7 @@
test_calibrations(sched);
- if (perf_sched__read_events(sched, true, NULL))
+ if (perf_sched__read_events(sched, NULL))
return -1;
printf("nr_run_events: %ld\n", sched->nr_run_events);