tracing/sysprof: add missing tracing_{start,stop}_record_cmdline()
Add the missing pair tracing_{start,stop}_record_cmdline() to record well
the cmdline associated with pid.
Changes in v2:
- fix a build error, the sched_switch tracer is needed to record the
cmdline.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/trace/trace_sysprof.c b/kernel/trace/trace_sysprof.c
index 84ca9d8..9902c15 100644
--- a/kernel/trace/trace_sysprof.c
+++ b/kernel/trace/trace_sysprof.c
@@ -238,6 +238,8 @@
{
sysprof_trace = tr;
+ tracing_start_cmdline_record();
+
mutex_lock(&sample_timer_lock);
start_stack_timers();
tracer_enabled = 1;
@@ -247,6 +249,7 @@
static void stack_trace_reset(struct trace_array *tr)
{
+ tracing_stop_cmdline_record();
stop_stack_trace(tr);
}