diff --git a/[refs] b/[refs]
index 1f7bfdcb59ab..9399742cf806 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 21528454f6dd18231ae20102f98aa8f51b6ec1b9
+refs/heads/master: acae9d32436122959667470b84da517d7b1b9c2d
diff --git a/trunk/arch/i386/kernel/apic.c b/trunk/arch/i386/kernel/apic.c
index 261796ff83c3..5ab59c12335b 100644
--- a/trunk/arch/i386/kernel/apic.c
+++ b/trunk/arch/i386/kernel/apic.c
@@ -113,7 +113,7 @@ void __init apic_intr_init(void)
 }
 
 /* Using APIC to generate smp_local_timer_interrupt? */
-int using_apic_timer = 0;
+int using_apic_timer __read_mostly = 0;
 
 static int enabled_via_apicbase;
 
diff --git a/trunk/arch/x86_64/kernel/apic.c b/trunk/arch/x86_64/kernel/apic.c
index 100a30c40044..29ef99001e05 100644
--- a/trunk/arch/x86_64/kernel/apic.c
+++ b/trunk/arch/x86_64/kernel/apic.c
@@ -51,7 +51,7 @@ int disable_apic_timer __initdata;
 static cpumask_t timer_interrupt_broadcast_ipi_mask;
 
 /* Using APIC to generate smp_local_timer_interrupt? */
-int using_apic_timer = 0;
+int using_apic_timer __read_mostly = 0;
 
 static void apic_pm_activate(void);