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Diffstat (limited to 'net/sched/sch_prio.c')
-rw-r--r--net/sched/sch_prio.c50
1 files changed, 19 insertions, 31 deletions
diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c
index 504a78cdb718..94cecef70145 100644
--- a/net/sched/sch_prio.c
+++ b/net/sched/sch_prio.c
@@ -93,34 +93,20 @@ prio_enqueue(struct sk_buff *skb, struct Qdisc *sch)
return ret;
}
-
-static int
-prio_requeue(struct sk_buff *skb, struct Qdisc* sch)
+static struct sk_buff *prio_peek(struct Qdisc *sch)
{
- struct Qdisc *qdisc;
- int ret;
-
- qdisc = prio_classify(skb, sch, &ret);
-#ifdef CONFIG_NET_CLS_ACT
- if (qdisc == NULL) {
- if (ret & __NET_XMIT_BYPASS)
- sch->qstats.drops++;
- kfree_skb(skb);
- return ret;
- }
-#endif
+ struct prio_sched_data *q = qdisc_priv(sch);
+ int prio;
- if ((ret = qdisc->ops->requeue(skb, qdisc)) == NET_XMIT_SUCCESS) {
- sch->q.qlen++;
- sch->qstats.requeues++;
- return NET_XMIT_SUCCESS;
+ for (prio = 0; prio < q->bands; prio++) {
+ struct Qdisc *qdisc = q->queues[prio];
+ struct sk_buff *skb = qdisc->ops->peek(qdisc);
+ if (skb)
+ return skb;
}
- if (net_xmit_drop_count(ret))
- sch->qstats.drops++;
- return ret;
+ return NULL;
}
-
static struct sk_buff *prio_dequeue(struct Qdisc* sch)
{
struct prio_sched_data *q = qdisc_priv(sch);
@@ -201,7 +187,8 @@ static int prio_tune(struct Qdisc *sch, struct nlattr *opt)
memcpy(q->prio2band, qopt->priomap, TC_PRIO_MAX+1);
for (i=q->bands; i<TCQ_PRIO_BANDS; i++) {
- struct Qdisc *child = xchg(&q->queues[i], &noop_qdisc);
+ struct Qdisc *child = q->queues[i];
+ q->queues[i] = &noop_qdisc;
if (child != &noop_qdisc) {
qdisc_tree_decrease_qlen(child, child->q.qlen);
qdisc_destroy(child);
@@ -211,18 +198,19 @@ static int prio_tune(struct Qdisc *sch, struct nlattr *opt)
for (i=0; i<q->bands; i++) {
if (q->queues[i] == &noop_qdisc) {
- struct Qdisc *child;
+ struct Qdisc *child, *old;
child = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
&pfifo_qdisc_ops,
TC_H_MAKE(sch->handle, i + 1));
if (child) {
sch_tree_lock(sch);
- child = xchg(&q->queues[i], child);
+ old = q->queues[i];
+ q->queues[i] = child;
- if (child != &noop_qdisc) {
- qdisc_tree_decrease_qlen(child,
- child->q.qlen);
- qdisc_destroy(child);
+ if (old != &noop_qdisc) {
+ qdisc_tree_decrease_qlen(old,
+ old->q.qlen);
+ qdisc_destroy(old);
}
sch_tree_unlock(sch);
}
@@ -421,7 +409,7 @@ static struct Qdisc_ops prio_qdisc_ops __read_mostly = {
.priv_size = sizeof(struct prio_sched_data),
.enqueue = prio_enqueue,
.dequeue = prio_dequeue,
- .requeue = prio_requeue,
+ .peek = prio_peek,
.drop = prio_drop,
.init = prio_init,
.reset = prio_reset,