diff --git a/[refs] b/[refs]
index 3c68437ba442..44efb086cc23 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8555a5948467e941acc34e8b1c30df4c1f2f5862
+refs/heads/master: 6a321cb370ad3db4ba6e405e638b3a42c41089b0
diff --git a/trunk/include/linux/netdevice.h b/trunk/include/linux/netdevice.h
index f8c3619d551f..505a3c6cb12d 100644
--- a/trunk/include/linux/netdevice.h
+++ b/trunk/include/linux/netdevice.h
@@ -447,12 +447,18 @@ enum netdev_queue_state_t
 };
 
 struct netdev_queue {
+/*
+ * read mostly part
+ */
 	struct net_device	*dev;
 	struct Qdisc		*qdisc;
 	unsigned long		state;
-	spinlock_t		_xmit_lock;
-	int			xmit_lock_owner;
 	struct Qdisc		*qdisc_sleeping;
+/*
+ * write mostly part
+ */
+	spinlock_t		_xmit_lock ____cacheline_aligned_in_smp;
+	int			xmit_lock_owner;
 } ____cacheline_aligned_in_smp;