---

yaml
---
r: 844
b: refs/heads/master
c: d5d75cd
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 771018e76aaa6474be20a53c20458bcae8b00485
+refs/heads/master: d5d75cd6b10ddad2f375b61092754474ad78aec7

trunk/net/sched/sch_api.c

@@ -1289,6 +1289,7 @@ static int __init pktsched_init(void)
 
 subsys_initcall(pktsched_init);
 
+EXPORT_SYMBOL(qdisc_lookup);
 EXPORT_SYMBOL(qdisc_get_rtab);
 EXPORT_SYMBOL(qdisc_put_rtab);
 EXPORT_SYMBOL(register_qdisc);

trunk/net/sched/sch_netem.c

@@ -206,7 +206,6 @@ static int netem_run(struct Qdisc *sch)
 static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 {
 	struct netem_sched_data *q = qdisc_priv(sch);
-	struct sk_buff *skb2;
 	int ret;
 
 	pr_debug("netem_enqueue skb=%p\n", skb);
@@ -220,11 +219,21 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 	}
 
 	/* Random duplication */
-	if (q->duplicate && q->duplicate >= get_crandom(&q->dup_cor)
-	    && (skb2 = skb_clone(skb, GFP_ATOMIC)) != NULL) {
-		pr_debug("netem_enqueue: dup %p\n", skb2);
+	if (q->duplicate && q->duplicate >= get_crandom(&q->dup_cor)) {
+		struct sk_buff *skb2;
+
+		skb2 = skb_clone(skb, GFP_ATOMIC);
+		if (skb2 && netem_delay(sch, skb2) == NET_XMIT_SUCCESS) {
+			struct Qdisc *qp;
+
+			/* Since one packet can generate two packets in the
+			 * queue, the parent's qlen accounting gets confused,
+			 * so fix it.
+			 */
+			qp = qdisc_lookup(sch->dev, TC_H_MAJ(sch->parent));
+			if (qp)
+				qp->q.qlen++;
 
-		if (netem_delay(sch, skb2)) {
 			sch->q.qlen++;
 			sch->bstats.bytes += skb2->len;
 			sch->bstats.packets++;
@@ -253,6 +262,7 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 	} else
 		sch->qstats.drops++;
 
+	pr_debug("netem: enqueue ret %d\n", ret);
 	return ret;
 }