net: Only store high 16 bits of kernel generated filter priorities

[safe/jmp/linux-2.6] / net / sched / sch_dsmark.c

diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c
index 7170275..d303daa 100644 (file)
--- a/net/sched/sch_dsmark.c
+++ b/net/sched/sch_dsmark.c
@@ -68,7 +68,8 @@ static int dsmark_graft(struct Qdisc *sch, unsigned long arg,
        }
 
        sch_tree_lock(sch);
-       *old = xchg(&p->q, new);
+       *old = p->q;
+       p->q = new;
        qdisc_tree_decrease_qlen(*old, (*old)->q.qlen);
        qdisc_reset(*old);
        sch_tree_unlock(sch);
@@ -202,7 +203,7 @@ static int dsmark_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 
        if (p->set_tc_index) {
                switch (skb->protocol) {
-               case __constant_htons(ETH_P_IP):
+               case htons(ETH_P_IP):
                        if (skb_cow_head(skb, sizeof(struct iphdr)))
                                goto drop;
 
@@ -210,7 +211,7 @@ static int dsmark_enqueue(struct sk_buff *skb, struct Qdisc *sch)
                                & ~INET_ECN_MASK;
                        break;
 
-               case __constant_htons(ETH_P_IPV6):
+               case htons(ETH_P_IPV6):
                        if (skb_cow_head(skb, sizeof(struct ipv6hdr)))
                                goto drop;
 
@@ -268,7 +269,7 @@ static int dsmark_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 drop:
        kfree_skb(skb);
        sch->qstats.drops++;
-       return NET_XMIT_BYPASS;
+       return NET_XMIT_SUCCESS | __NET_XMIT_BYPASS;
 }
 
 static struct sk_buff *dsmark_dequeue(struct Qdisc *sch)
@@ -289,11 +290,11 @@ static struct sk_buff *dsmark_dequeue(struct Qdisc *sch)
        pr_debug("index %d->%d\n", skb->tc_index, index);
 
        switch (skb->protocol) {
-       case __constant_htons(ETH_P_IP):
+       case htons(ETH_P_IP):
                ipv4_change_dsfield(ip_hdr(skb), p->mask[index],
                                    p->value[index]);
                        break;
-       case __constant_htons(ETH_P_IPV6):
+       case htons(ETH_P_IPV6):
                ipv6_change_dsfield(ipv6_hdr(skb), p->mask[index],
                                    p->value[index]);
                        break;
@@ -313,24 +314,13 @@ static struct sk_buff *dsmark_dequeue(struct Qdisc *sch)
        return skb;
 }
 
-static int dsmark_requeue(struct sk_buff *skb, struct Qdisc *sch)
+static struct sk_buff *dsmark_peek(struct Qdisc *sch)
 {
        struct dsmark_qdisc_data *p = qdisc_priv(sch);
-       int err;
-
-       pr_debug("dsmark_requeue(skb %p,sch %p,[qdisc %p])\n", skb, sch, p);
-
-       err = p->q->ops->requeue(skb, p->q);
-       if (err != NET_XMIT_SUCCESS) {
-               if (net_xmit_drop_count(err))
-                       sch->qstats.drops++;
-               return err;
-       }
 
-       sch->q.qlen++;
-       sch->qstats.requeues++;
+       pr_debug("dsmark_peek(sch %p,[qdisc %p])\n", sch, p);
 
-       return NET_XMIT_SUCCESS;
+       return p->q->ops->peek(p->q);
 }
 
 static unsigned int dsmark_drop(struct Qdisc *sch)
@@ -496,7 +486,7 @@ static struct Qdisc_ops dsmark_qdisc_ops __read_mostly = {
        .priv_size      =       sizeof(struct dsmark_qdisc_data),
        .enqueue        =       dsmark_enqueue,
        .dequeue        =       dsmark_dequeue,
-       .requeue        =       dsmark_requeue,
+       .peek           =       dsmark_peek,
        .drop           =       dsmark_drop,
        .init           =       dsmark_init,
        .reset          =       dsmark_reset,