netdev: Create netdev_queue abstraction.

A netdev_queue is an entity managed by a qdisc.

Currently there is one RX and one TX queue, and a netdev_queue merely
contains a backpointer to the net_device.

The Qdisc struct is augmented with a netdev_queue pointer as well.

Eventually the 'dev' Qdisc member will go away and we will have the
resulting hierarchy:

	net_device --> netdev_queue --> Qdisc

Also, qdisc_alloc() and qdisc_create_dflt() now take a netdev_queue
pointer argument.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 24697667247c..aa7a04e32ae9 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -536,7 +536,8 @@ static int netem_init(struct Qdisc *sch, struct nlattr *opt)
 
         qdisc_watchdog_init(&q->watchdog, sch);
 
-        q->qdisc = qdisc_create_dflt(sch->dev, &tfifo_qdisc_ops,
+        q->qdisc = qdisc_create_dflt(sch->dev, sch->dev_queue,
+                                     &tfifo_qdisc_ops,
                                      TC_H_MAKE(sch->handle, 1));
         if (!q->qdisc) {
                 pr_debug("netem: qdisc create failed\n");