3 files changed, 37 insertions, 27 deletions

diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c
index cc29b44b1500..0f815cc6a3db 100644
--- a/net/sched/cls_cgroup.c
+++ b/net/sched/cls_cgroup.c
@@ -62,13 +62,7 @@ static u64 read_classid(struct cgroup *cgrp, struct cftype *cft)
 
 static int write_classid(struct cgroup *cgrp, struct cftype *cft, u64 value)
 {
-	if (!cgroup_lock_live_group(cgrp))
-		return -ENODEV;
-
 	cgrp_cls_state(cgrp)->classid = (u32) value;
-
-	cgroup_unlock();
-
 	return 0;
 }
 
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 5f5efe4e6072..27d03816ec3e 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -196,6 +196,21 @@ void __qdisc_run(struct Qdisc *q)
 	clear_bit(__QDISC_STATE_RUNNING, &q->state);
 }
 
+unsigned long dev_trans_start(struct net_device *dev)
+{
+	unsigned long val, res = dev->trans_start;
+	unsigned int i;
+
+	for (i = 0; i < dev->num_tx_queues; i++) {
+		val = netdev_get_tx_queue(dev, i)->trans_start;
+		if (val && time_after(val, res))
+			res = val;
+	}
+	dev->trans_start = res;
+	return res;
+}
+EXPORT_SYMBOL(dev_trans_start);
+
 static void dev_watchdog(unsigned long arg)
 {
 	struct net_device *dev = (struct net_device *)arg;
@@ -205,25 +220,30 @@ static void dev_watchdog(unsigned long arg)
 		if (netif_device_present(dev) &&
 		    netif_running(dev) &&
 		    netif_carrier_ok(dev)) {
-			int some_queue_stopped = 0;
+			int some_queue_timedout = 0;
 			unsigned int i;
+			unsigned long trans_start;
 
 			for (i = 0; i < dev->num_tx_queues; i++) {
 				struct netdev_queue *txq;
 
 				txq = netdev_get_tx_queue(dev, i);
-				if (netif_tx_queue_stopped(txq)) {
-					some_queue_stopped = 1;
+				/*
+				 * old device drivers set dev->trans_start
+				 */
+				trans_start = txq->trans_start ? : dev->trans_start;
+				if (netif_tx_queue_stopped(txq) &&
+				    time_after(jiffies, (trans_start +
+							 dev->watchdog_timeo))) {
+					some_queue_timedout = 1;
 					break;
 				}
 			}
 
-			if (some_queue_stopped &&
-			    time_after(jiffies, (dev->trans_start +
-						 dev->watchdog_timeo))) {
+			if (some_queue_timedout) {
 				char drivername[64];
-				WARN_ONCE(1, KERN_INFO "NETDEV WATCHDOG: %s (%s): transmit timed out\n",
-				       dev->name, netdev_drivername(dev, drivername, 64));
+				WARN_ONCE(1, KERN_INFO "NETDEV WATCHDOG: %s (%s): transmit queue %u timed out\n",
+				       dev->name, netdev_drivername(dev, drivername, 64), i);
 				dev->netdev_ops->ndo_tx_timeout(dev);
 			}
 			if (!mod_timer(&dev->watchdog_timer,
@@ -602,8 +622,10 @@ static void transition_one_qdisc(struct net_device *dev,
 		clear_bit(__QDISC_STATE_DEACTIVATED, &new_qdisc->state);
 
 	rcu_assign_pointer(dev_queue->qdisc, new_qdisc);
-	if (need_watchdog_p && new_qdisc != &noqueue_qdisc)
+	if (need_watchdog_p && new_qdisc != &noqueue_qdisc) {
+		dev_queue->trans_start = 0;
 		*need_watchdog_p = 1;
+	}
 }
 
 void dev_activate(struct net_device *dev)
diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c
index 3b6418297231..a886496bdc3a 100644
--- a/net/sched/sch_teql.c
+++ b/net/sched/sch_teql.c
@@ -58,7 +58,6 @@ struct teql_master
 	struct net_device *dev;
 	struct Qdisc *slaves;
 	struct list_head master_list;
-	struct net_device_stats stats;
 };
 
 struct teql_sched_data
@@ -272,6 +271,7 @@ static inline int teql_resolve(struct sk_buff *skb,
 static int teql_master_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct teql_master *master = netdev_priv(dev);
+	struct netdev_queue *txq = netdev_get_tx_queue(dev, 0);
 	struct Qdisc *start, *q;
 	int busy;
 	int nores;
@@ -308,11 +308,12 @@ restart:
 				if (!netif_tx_queue_stopped(slave_txq) &&
 				    !netif_tx_queue_frozen(slave_txq) &&
 				    slave_ops->ndo_start_xmit(skb, slave) == 0) {
+					txq_trans_update(slave_txq);
 					__netif_tx_unlock(slave_txq);
 					master->slaves = NEXT_SLAVE(q);
 					netif_wake_queue(dev);
-					master->stats.tx_packets++;
-					master->stats.tx_bytes += length;
+					txq->tx_packets++;
+					txq->tx_bytes += length;
 					return 0;
 				}
 				__netif_tx_unlock(slave_txq);
@@ -339,10 +340,10 @@ restart:
 		netif_stop_queue(dev);
 		return 1;
 	}
-	master->stats.tx_errors++;
+	dev->stats.tx_errors++;
 
 drop:
-	master->stats.tx_dropped++;
+	txq->tx_dropped++;
 	dev_kfree_skb(skb);
 	return 0;
 }
@@ -395,12 +396,6 @@ static int teql_master_close(struct net_device *dev)
 	return 0;
 }
 
-static struct net_device_stats *teql_master_stats(struct net_device *dev)
-{
-	struct teql_master *m = netdev_priv(dev);
-	return &m->stats;
-}
-
 static int teql_master_mtu(struct net_device *dev, int new_mtu)
 {
 	struct teql_master *m = netdev_priv(dev);
@@ -425,7 +420,6 @@ static const struct net_device_ops teql_netdev_ops = {
 	.ndo_open	= teql_master_open,
 	.ndo_stop	= teql_master_close,
 	.ndo_start_xmit	= teql_master_xmit,
-	.ndo_get_stats	= teql_master_stats,
 	.ndo_change_mtu	= teql_master_mtu,
 };