1 files changed, 10 insertions, 61 deletions

diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index fe1508ef0d3..f3965df0055 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -281,7 +281,7 @@ sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 	struct sfq_sched_data *q = qdisc_priv(sch);
 	unsigned int hash;
 	sfq_index x;
-	int ret;
+	int uninitialized_var(ret);
 
 	hash = sfq_classify(skb, sch, &ret);
 	if (hash == 0) {
@@ -329,71 +329,20 @@ sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 	return NET_XMIT_CN;
 }
 
-static int
-sfq_requeue(struct sk_buff *skb, struct Qdisc *sch)
+static struct sk_buff *
+sfq_peek(struct Qdisc *sch)
 {
 	struct sfq_sched_data *q = qdisc_priv(sch);
-	unsigned int hash;
-	sfq_index x;
-	int ret;
-
-	hash = sfq_classify(skb, sch, &ret);
-	if (hash == 0) {
-		if (ret & __NET_XMIT_BYPASS)
-			sch->qstats.drops++;
-		kfree_skb(skb);
-		return ret;
-	}
-	hash--;
+	sfq_index a;
 
-	x = q->ht[hash];
-	if (x == SFQ_DEPTH) {
-		q->ht[hash] = x = q->dep[SFQ_DEPTH].next;
-		q->hash[x] = hash;
-	}
-
-	sch->qstats.backlog += qdisc_pkt_len(skb);
-	__skb_queue_head(&q->qs[x], skb);
-	/* If selected queue has length q->limit+1, this means that
-	 * all another queues are empty and we do simple tail drop.
-	 * This packet is still requeued at head of queue, tail packet
-	 * is dropped.
-	 */
-	if (q->qs[x].qlen > q->limit) {
-		skb = q->qs[x].prev;
-		__skb_unlink(skb, &q->qs[x]);
-		sch->qstats.drops++;
-		sch->qstats.backlog -= qdisc_pkt_len(skb);
-		kfree_skb(skb);
-		return NET_XMIT_CN;
-	}
-
-	sfq_inc(q, x);
-	if (q->qs[x].qlen == 1) {		/* The flow is new */
-		if (q->tail == SFQ_DEPTH) {	/* It is the first flow */
-			q->tail = x;
-			q->next[x] = x;
-			q->allot[x] = q->quantum;
-		} else {
-			q->next[x] = q->next[q->tail];
-			q->next[q->tail] = x;
-			q->tail = x;
-		}
-	}
-
-	if (++sch->q.qlen <= q->limit) {
-		sch->qstats.requeues++;
-		return 0;
-	}
+	/* No active slots */
+	if (q->tail == SFQ_DEPTH)
+		return NULL;
 
-	sch->qstats.drops++;
-	sfq_drop(sch);
-	return NET_XMIT_CN;
+	a = q->next[q->tail];
+	return skb_peek(&q->qs[a]);
 }
 
-
-
-
 static struct sk_buff *
 sfq_dequeue(struct Qdisc *sch)
 {
@@ -624,7 +573,7 @@ static struct Qdisc_ops sfq_qdisc_ops __read_mostly = {
 	.priv_size	=	sizeof(struct sfq_sched_data),
 	.enqueue	=	sfq_enqueue,
 	.dequeue	=	sfq_dequeue,
-	.requeue	=	sfq_requeue,
+	.peek		=	sfq_peek,
 	.drop		=	sfq_drop,
 	.init		=	sfq_init,
 	.reset		=	sfq_reset,