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-rw-r--r--kernel/trace/Kconfig1
-rw-r--r--kernel/trace/trace_sysprof.c3
2 files changed, 4 insertions, 0 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 3a331289457a..6ff928acd453 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -134,6 +134,7 @@ config SYSPROF_TRACER
bool "Sysprof Tracer"
depends on X86
select TRACING
+ select CONTEXT_SWITCH_TRACER
help
This tracer provides the trace needed by the 'Sysprof' userspace
tool.
diff --git a/kernel/trace/trace_sysprof.c b/kernel/trace/trace_sysprof.c
index 84ca9d81e74d..9902c15997ad 100644
--- a/kernel/trace/trace_sysprof.c
+++ b/kernel/trace/trace_sysprof.c
@@ -238,6 +238,8 @@ static int stack_trace_init(struct trace_array *tr)
{
sysprof_trace = tr;
+ tracing_start_cmdline_record();
+
mutex_lock(&sample_timer_lock);
start_stack_timers();
tracer_enabled = 1;
@@ -247,6 +249,7 @@ static int stack_trace_init(struct trace_array *tr)
static void stack_trace_reset(struct trace_array *tr)
{
+ tracing_stop_cmdline_record();
stop_stack_trace(tr);
}