ipv6: delete expired route in ip6_pmtu_deliver

[mv-sheeva.git] / net / ipv6 / route.c

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index fc328339be99f5c0c1fe5ffcb484e72b51b63e90..7659d6f16e6bae4b7e8a1701161181f627c0e41f 100644 (file)
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1565,11 +1565,16 @@ static void rt6_do_pmtu_disc(struct in6_addr *daddr, struct in6_addr *saddr,
 {
        struct rt6_info *rt, *nrt;
        int allfrag = 0;
-
+again:
        rt = rt6_lookup(net, daddr, saddr, ifindex, 0);
        if (rt == NULL)
                return;
 
+       if (rt6_check_expired(rt)) {
+               ip6_del_rt(rt);
+               goto again;
+       }
+
        if (pmtu >= dst_mtu(&rt->dst))
                goto out;
 
@@ -1945,8 +1950,12 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
        struct rt6_info *rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops);
        struct neighbour *neigh;
 
-       if (rt == NULL)
+       if (rt == NULL) {
+               if (net_ratelimit())
+                       pr_warning("IPv6:  Maximum number of routes reached,"
+                                  " consider increasing route/max_size.\n");
                return ERR_PTR(-ENOMEM);
+       }
 
        dev_hold(net->loopback_dev);
        in6_dev_hold(idev);