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Diffstat (limited to 'kernel/trace/trace_sched_switch.c')
-rw-r--r--kernel/trace/trace_sched_switch.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c
index 96620c71430..9d7bdac331d 100644
--- a/kernel/trace/trace_sched_switch.c
+++ b/kernel/trace/trace_sched_switch.c
@@ -127,6 +127,7 @@ static void tracing_start_sched_switch(void)
long ref;
mutex_lock(&tracepoint_mutex);
+ tracer_enabled = 1;
ref = atomic_inc_return(&sched_ref);
if (ref == 1)
tracing_sched_register();
@@ -138,6 +139,7 @@ static void tracing_stop_sched_switch(void)
long ref;
mutex_lock(&tracepoint_mutex);
+ tracer_enabled = 0;
ref = atomic_dec_and_test(&sched_ref);
if (ref)
tracing_sched_unregister();
@@ -158,12 +160,10 @@ static void start_sched_trace(struct trace_array *tr)
{
sched_switch_reset(tr);
tracing_start_cmdline_record();
- tracer_enabled = 1;
}
static void stop_sched_trace(struct trace_array *tr)
{
- tracer_enabled = 0;
tracing_stop_cmdline_record();
}
@@ -190,7 +190,7 @@ static void sched_switch_trace_ctrl_update(struct trace_array *tr)
stop_sched_trace(tr);
}
-static struct tracer sched_switch_trace __read_mostly =
+struct tracer sched_switch_trace __read_mostly =
{
.name = "sched_switch",
.init = sched_switch_trace_init,