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authorFrederic Weisbecker <fweisbec@gmail.com>2008-10-31 15:34:45 +0300
committerIngo Molnar <mingo@elte.hu>2008-11-04 19:14:08 +0300
commit79a9d461fd521f133f0e66485aa9ed09c21f5191 (patch)
treead90b0c05dabfa639855ee046c04bba77de85804 /kernel/trace/trace_sched_switch.c
parentefade6e7821c4219818e9da08f9315dfa617048b (diff)
downloadlinux-79a9d461fd521f133f0e66485aa9ed09c21f5191.tar.xz
tracing/ftrace: fix a bug when switch current tracer to sched tracer
Impact: fix boot tracer + sched tracer coupling bug Fix a bug that made the sched_switch tracer unable to run if set as the current_tracer after the boot tracer. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/trace_sched_switch.c')
-rw-r--r--kernel/trace/trace_sched_switch.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c
index 969953bf678f..888944d3409d 100644
--- a/kernel/trace/trace_sched_switch.c
+++ b/kernel/trace/trace_sched_switch.c
@@ -173,7 +173,7 @@ static void sched_switch_trace_init(struct trace_array *tr)
static void sched_switch_trace_reset(struct trace_array *tr)
{
- if (tr->ctrl)
+ if (tr->ctrl && sched_ref)
stop_sched_trace(tr);
}