net: add a noref bit on skb dst

[safe/jmp/linux-2.6] / net / ipv4 / icmp.c

diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index f3d339f..d65e921 100644 (file)
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -587,20 +587,20 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
                        err = __ip_route_output_key(net, &rt2, &fl);
                else {
                        struct flowi fl2 = {};
-                       struct dst_entry *odst;
+                       unsigned long orefdst;
 
                        fl2.fl4_dst = fl.fl4_src;
                        if (ip_route_output_key(net, &rt2, &fl2))
                                goto relookup_failed;
 
                        /* Ugh! */
-                       odst = skb_dst(skb_in);
+                       orefdst = skb_in->_skb_refdst; /* save old refdst */
                        err = ip_route_input(skb_in, fl.fl4_dst, fl.fl4_src,
                                             RT_TOS(tos), rt2->u.dst.dev);
 
                        dst_release(&rt2->u.dst);
                        rt2 = skb_rtable(skb_in);
-                       skb_dst_set(skb_in, odst);
+                       skb_in->_skb_refdst = orefdst; /* restore old refdst */
                }
 
                if (err)