[PATCH] netem: restart device after inserting packets

[Stephen Hemminger <shemminger@xxxxxxxx>]

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@xxxxxxxx>

diff -Nru a/net/sched/sch_netem.c b/net/sched/sch_netem.c
--- a/net/sched/sch_netem.c     2004-12-08 12:29:12 -08:00
+++ b/net/sched/sch_netem.c     2004-12-08 12:29:12 -08:00
@@ -258,12 +258,13 @@
 {
        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 @@
                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)