tracing: convert c/p state power tracer to use tracepoints
Convert the c/p state "power" tracer to use tracepoints. Avoids a
function call when the tracer is disabled.
Signed-off-by: Jason Baron <jbaron@redhat.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 026819f..e0d0fd7 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -19,6 +19,9 @@
struct kmem_cache *task_xstate_cachep;
+DEFINE_TRACE(power_start);
+DEFINE_TRACE(power_end);
+
int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
{
*dst = *src;