---

yaml --- r: 327819 b: refs/heads/master c: 23d3b8b h: refs/heads/master i: 327817: f7140b2 327815: 5479ee8 v: v3
git-mirror · Sep 5, 2012 · 4dea18d · 4dea18d
1 parent 3c5109c
commit 4dea18d
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Showing 4 changed files with 13 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7933aa5c75b880aad6fc26f2df1e3ee6c14f166d
+refs/heads/master: 23d3b8bfb8eb20e7d96afa09991e6a5ed1c83164
diff --git a/trunk/include/linux/netdevice.h b/trunk/include/linux/netdevice.h
@@ -1322,6 +1322,8 @@ struct net_device {
 	/* phy device may attach itself for hardware timestamping */
 	struct phy_device *phydev;
 
+	struct lock_class_key *qdisc_tx_busylock;
+
 	/* group the device belongs to */
 	int group;
 

diff --git a/trunk/net/l2tp/l2tp_eth.c b/trunk/net/l2tp/l2tp_eth.c
@@ -67,14 +67,15 @@ static inline struct l2tp_eth_net *l2tp_eth_pernet(struct net *net)
 	return net_generic(net, l2tp_eth_net_id);
 }
 
+static struct lock_class_key l2tp_eth_tx_busylock;
 static int l2tp_eth_dev_init(struct net_device *dev)
 {
 	struct l2tp_eth *priv = netdev_priv(dev);
 
 	priv->dev = dev;
 	eth_hw_addr_random(dev);
 	memset(&dev->broadcast[0], 0xff, 6);
-
+	dev->qdisc_tx_busylock = &l2tp_eth_tx_busylock;
 	return 0;
 }
 

diff --git a/trunk/net/sched/sch_generic.c b/trunk/net/sched/sch_generic.c
@@ -527,13 +527,16 @@ struct Qdisc_ops pfifo_fast_ops __read_mostly = {
 };
 EXPORT_SYMBOL(pfifo_fast_ops);
 
+static struct lock_class_key qdisc_tx_busylock;
+
 struct Qdisc *qdisc_alloc(struct netdev_queue *dev_queue,
 			  struct Qdisc_ops *ops)
 {
 	void *p;
 	struct Qdisc *sch;
 	unsigned int size = QDISC_ALIGN(sizeof(*sch)) + ops->priv_size;
 	int err = -ENOBUFS;
+	struct net_device *dev = dev_queue->dev;
 
 	p = kzalloc_node(size, GFP_KERNEL,
 			 netdev_queue_numa_node_read(dev_queue));
@@ -553,12 +556,16 @@ struct Qdisc *qdisc_alloc(struct netdev_queue *dev_queue,
 	}
 	INIT_LIST_HEAD(&sch->list);
 	skb_queue_head_init(&sch->q);
+
 	spin_lock_init(&sch->busylock);
+	lockdep_set_class(&sch->busylock,
+			  dev->qdisc_tx_busylock ?: &qdisc_tx_busylock);
+
 	sch->ops = ops;
 	sch->enqueue = ops->enqueue;
 	sch->dequeue = ops->dequeue;
 	sch->dev_queue = dev_queue;
-	dev_hold(qdisc_dev(sch));
+	dev_hold(dev);
 	atomic_set(&sch->refcnt, 1);
 
 	return sch;