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authorJarek Poplawski <jarkao2@gmail.com>2008-02-10 08:44:00 +0100
committerDavid S. Miller <davem@davemloft.net>2008-02-10 08:44:00 +0100
commit21347456abfbf5bc7fcace7327476736bbb28abe (patch)
tree79863d638a3fad6bf7efc9e6f280b6ab22a0c317 /net/sched/sch_htb.c
parent[IPV6]: Replace using the magic constant "1024" with IP6_RT_PRIO_USER for fc_... (diff)
downloadlinux-21347456abfbf5bc7fcace7327476736bbb28abe.tar.xz
linux-21347456abfbf5bc7fcace7327476736bbb28abe.zip
[NET_SCHED] sch_htb: htb_requeue fix
htb_requeue() enqueues skbs for which htb_classify() returns NULL. This is wrong because such skbs could be handled by NET_CLS_ACT code, and the decision could be different than earlier in htb_enqueue(). So htb_requeue() is changed to work and look more like htb_enqueue(). Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_htb.c')
-rw-r--r--net/sched/sch_htb.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index e1a579efc215..795c761ad99f 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -609,14 +609,14 @@ static int htb_enqueue(struct sk_buff *skb, struct Qdisc *sch)
/* TODO: requeuing packet charges it to policers again !! */
static int htb_requeue(struct sk_buff *skb, struct Qdisc *sch)
{
+ int ret;
struct htb_sched *q = qdisc_priv(sch);
- int ret = NET_XMIT_SUCCESS;
struct htb_class *cl = htb_classify(skb, sch, &ret);
struct sk_buff *tskb;
- if (cl == HTB_DIRECT || !cl) {
+ if (cl == HTB_DIRECT) {
/* enqueue to helper queue */
- if (q->direct_queue.qlen < q->direct_qlen && cl) {
+ if (q->direct_queue.qlen < q->direct_qlen) {
__skb_queue_head(&q->direct_queue, skb);
} else {
__skb_queue_head(&q->direct_queue, skb);
@@ -625,6 +625,13 @@ static int htb_requeue(struct sk_buff *skb, struct Qdisc *sch)
sch->qstats.drops++;
return NET_XMIT_CN;
}
+#ifdef CONFIG_NET_CLS_ACT
+ } else if (!cl) {
+ if (ret == NET_XMIT_BYPASS)
+ sch->qstats.drops++;
+ kfree_skb(skb);
+ return ret;
+#endif
} else if (cl->un.leaf.q->ops->requeue(skb, cl->un.leaf.q) !=
NET_XMIT_SUCCESS) {
sch->qstats.drops++;