Merge branch 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile...

[pandora-kernel.git] / net / sched / sch_sfq.c

diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index 7ef87f9..b6ea6af 100644 (file)
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -361,7 +361,7 @@ sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 {
        struct sfq_sched_data *q = qdisc_priv(sch);
        unsigned int hash;
-       sfq_index x;
+       sfq_index x, qlen;
        struct sfq_slot *slot;
        int uninitialized_var(ret);
 
@@ -405,20 +405,12 @@ sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch)
        if (++sch->q.qlen <= q->limit)
                return NET_XMIT_SUCCESS;
 
+       qlen = slot->qlen;
        sfq_drop(sch);
-       return NET_XMIT_CN;
-}
-
-static struct sk_buff *
-sfq_peek(struct Qdisc *sch)
-{
-       struct sfq_sched_data *q = qdisc_priv(sch);
-
-       /* No active slots */
-       if (q->tail == NULL)
-               return NULL;
-
-       return q->slots[q->tail->next].skblist_next;
+       /* Return Congestion Notification only if we dropped a packet
+        * from this flow.
+        */
+       return (qlen != slot->qlen) ? NET_XMIT_CN : NET_XMIT_SUCCESS;
 }
 
 static struct sk_buff *
@@ -702,7 +694,7 @@ static struct Qdisc_ops sfq_qdisc_ops __read_mostly = {
        .priv_size      =       sizeof(struct sfq_sched_data),
        .enqueue        =       sfq_enqueue,
        .dequeue        =       sfq_dequeue,
-       .peek           =       sfq_peek,
+       .peek           =       qdisc_peek_dequeued,
        .drop           =       sfq_drop,
        .init           =       sfq_init,
        .reset          =       sfq_reset,