From: Krishna Kumar <krkumar2@in.ibm.com>
Date: Wed, 9 May 2007 01:57:50 +0000 (-0700)
Subject: [NET_SCHED]: teql_enqueue can check limits before skb enqueue
X-Git-Tag: v2.6.22-rc1~34^2~23
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4cd8c9e87be7ea891050ff1bebbf767a837eb5cf;p=linux-2.6

[NET_SCHED]: teql_enqueue can check limits before skb enqueue

Optimize teql_enqueue so that it first checks limits before enqueing.

Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c
index d24914db78..f05ad9a30b 100644
--- a/net/sched/sch_teql.c
+++ b/net/sched/sch_teql.c
@@ -94,14 +94,13 @@ teql_enqueue(struct sk_buff *skb, struct Qdisc* sch)
 	struct net_device *dev = sch->dev;
 	struct teql_sched_data *q = qdisc_priv(sch);
 
-	__skb_queue_tail(&q->q, skb);
-	if (q->q.qlen <= dev->tx_queue_len) {
+	if (q->q.qlen < dev->tx_queue_len) {
+		__skb_queue_tail(&q->q, skb);
 		sch->bstats.bytes += skb->len;
 		sch->bstats.packets++;
 		return 0;
 	}
 
-	__skb_unlink(skb, &q->q);
 	kfree_skb(skb);
 	sch->qstats.drops++;
 	return NET_XMIT_DROP;