[PKT_SCHED]: netem forgets to restart device after inserting packets

The version of netem in 2.6.10 moves packets from the delayed queue
to the qdisc in a timer interrupt. But it forgot to force the device to
pick them up.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sched/sch_netem.c

@@ -258,12 +258,13 @@ static void netem_watchdog(unsigned long arg)
 {
 	struct Qdisc *sch = (struct Qdisc *)arg;
 	struct netem_sched_data *q = qdisc_priv(sch);
+	struct net_device *dev = sch->dev;
 	struct sk_buff *skb;
 	psched_time_t now;
 
 	pr_debug("netem_watchdog: fired @%lu\n", jiffies);
 
-	spin_lock_bh(&sch->dev->queue_lock);
+	spin_lock_bh(&dev->queue_lock);
 	PSCHED_GET_TIME(now);
 
 	while ((skb = skb_peek(&q->delayed)) != NULL) {
@@ -286,7 +287,8 @@ static void netem_watchdog(unsigned long arg)
 		else
 			sch->q.qlen++;
 	}
-	spin_unlock_bh(&sch->dev->queue_lock);
+	qdisc_restart(dev);
+	spin_unlock_bh(&dev->queue_lock);
 }
 
 static void netem_reset(struct Qdisc *sch)