1 files changed, 3 insertions, 0 deletions

diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index db56f31dbf70..83638aa096d5 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -28,6 +28,7 @@
 #include <linux/tty.h>
 #include <linux/console.h>
 #include <linux/slab.h>
+#include <linux/rcupdate.h>
 
 #include <asm/reg.h>
 #include <asm/uaccess.h>
@@ -54,9 +55,11 @@ cpu_idle(void)
                 /* FIXME -- EV6 and LCA45 know how to power down
                    the CPU.  */
 
+                rcu_idle_enter();
                 while (!need_resched())
                         cpu_relax();
 
+                rcu_idle_exit();
                 schedule_preempt_disabled();
         }
 }