commit ad591240ceadcaf41b2a88855ca5f1c77c5a0298
author Steven Rostedt <rostedt@goodmis.org> Thu Jul 10 20:58:13 2008 -0400
committer Ingo Molnar <mingo@elte.hu> Fri Jul 11 15:49:20 2008 +0200
tree 8ace309f09fd6d1cbbf422452618297714654f81
parent b5c21b4514b38f450848feb432f7120376d01ffe

ftrace: start wakeup tracing after setting function tracer

Enabling the wakeup tracer before enabling the function tracing causes
some strange results due to the dynamic enabling of the functions.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

kernel/trace/trace_sched_wakeup.c

diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c
index bf7e91c..3c8d61d 100644
--- a/kernel/trace/trace_sched_wakeup.c
+++ b/kernel/trace/trace_sched_wakeup.c
@@ -352,9 +352,10 @@
 	 */
 	smp_wmb();
 
-	tracer_enabled = 1;
 	register_ftrace_function(&trace_ops);
 
+	tracer_enabled = 1;
+
 	return;
 fail_deprobe_wake_new:
 	marker_probe_unregister("kernel_sched_wakeup_new",