Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

[karo-tx-linux.git] / net / ipv4 / route.c

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index bcacf54e541879a01f8afe737e2cbbe13ce497c3..815989b90dea2df70d865ce0958442d4bd5bb8f9 100644 (file)
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -132,7 +132,6 @@ static int ip_rt_mtu_expires __read_mostly  = 10 * 60 * HZ;
 static int ip_rt_min_pmtu __read_mostly                = 512 + 20 + 20;
 static int ip_rt_min_advmss __read_mostly      = 256;
 static int rt_chain_length_max __read_mostly   = 20;
-static int redirect_genid;
 
 static struct delayed_work expires_work;
 static unsigned long expires_ljiffies;
@@ -937,7 +936,7 @@ static void rt_cache_invalidate(struct net *net)
 
        get_random_bytes(&shuffle, sizeof(shuffle));
        atomic_add(shuffle + 1U, &net->ipv4.rt_genid);
-       redirect_genid++;
+       inetpeer_invalidate_tree(AF_INET);
 }
 
 /*
@@ -1117,12 +1116,17 @@ static struct neighbour *ipv4_neigh_lookup(const struct dst_entry *dst, const vo
        static const __be32 inaddr_any = 0;
        struct net_device *dev = dst->dev;
        const __be32 *pkey = daddr;
+       const struct rtable *rt;
        struct neighbour *n;
 
+       rt = (const struct rtable *) dst;
+
        if (dev->flags & (IFF_LOOPBACK | IFF_POINTOPOINT))
                pkey = &inaddr_any;
+       else if (rt->rt_gateway)
+               pkey = (const __be32 *) &rt->rt_gateway;
 
-       n = __ipv4_neigh_lookup(&arp_tbl, dev, *(__force u32 *)pkey);
+       n = __ipv4_neigh_lookup(dev, *(__force u32 *)pkey);
        if (n)
                return n;
        return neigh_create(&arp_tbl, pkey, dev);
@@ -1485,10 +1489,8 @@ void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw,
 
                                peer = rt->peer;
                                if (peer) {
-                                       if (peer->redirect_learned.a4 != new_gw ||
-                                           peer->redirect_genid != redirect_genid) {
+                                       if (peer->redirect_learned.a4 != new_gw) {
                                                peer->redirect_learned.a4 = new_gw;
-                                               peer->redirect_genid = redirect_genid;
                                                atomic_inc(&__rt_peer_genid);
                                        }
                                        check_peer_redir(&rt->dst, peer);
@@ -1793,8 +1795,6 @@ static void ipv4_validate_peer(struct rtable *rt)
                if (peer) {
                        check_peer_pmtu(&rt->dst, peer);
 
-                       if (peer->redirect_genid != redirect_genid)
-                               peer->redirect_learned.a4 = 0;
                        if (peer->redirect_learned.a4 &&
                            peer->redirect_learned.a4 != rt->rt_gateway)
                                check_peer_redir(&rt->dst, peer);
@@ -1958,8 +1958,7 @@ static void rt_init_metrics(struct rtable *rt, const struct flowi4 *fl4,
                dst_init_metrics(&rt->dst, peer->metrics, false);
 
                check_peer_pmtu(&rt->dst, peer);
-               if (peer->redirect_genid != redirect_genid)
-                       peer->redirect_learned.a4 = 0;
+
                if (peer->redirect_learned.a4 &&
                    peer->redirect_learned.a4 != rt->rt_gateway) {
                        rt->rt_gateway = peer->redirect_learned.a4;