pkt_sched: Add qdisc->ops->peek() implementation.
Add qdisc->ops->peek() implementation for work-conserving qdiscs.
With feedback from Patrick McHardy.
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c
index 43d3725..f9eac08 100644
--- a/net/sched/sch_atm.c
+++ b/net/sched/sch_atm.c
@@ -522,6 +522,15 @@
return skb;
}
+static struct sk_buff *atm_tc_peek(struct Qdisc *sch)
+{
+ struct atm_qdisc_data *p = qdisc_priv(sch);
+
+ pr_debug("atm_tc_peek(sch %p,[qdisc %p])\n", sch, p);
+
+ return p->link.q->ops->peek(p->link.q);
+}
+
static int atm_tc_requeue(struct sk_buff *skb, struct Qdisc *sch)
{
struct atm_qdisc_data *p = qdisc_priv(sch);
@@ -694,6 +703,7 @@
.priv_size = sizeof(struct atm_qdisc_data),
.enqueue = atm_tc_enqueue,
.dequeue = atm_tc_dequeue,
+ .peek = atm_tc_peek,
.requeue = atm_tc_requeue,
.drop = atm_tc_drop,
.init = atm_tc_init,