ipv4: Remove inetpeer from routes.

No longer used.

Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 6 insertions, 118 deletions

diff --git a/include/net/route.h b/include/net/route.h
index c27449466d18..52362368af09 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -40,7 +40,6 @@
 #define RT_CONN_FLAGS(sk)   (RT_TOS(inet_sk(sk)->tos) | sock_flag(sk, SOCK_LOCALROUTE))
 
 struct fib_nh;
-struct inet_peer;
 struct fib_info;
 struct rtable {
         struct dst_entry        dst;
@@ -66,44 +65,9 @@ struct rtable {
 
         /* Miscellaneous cached information */
         u32                     rt_pmtu;
-        unsigned long           _peer; /* long-living peer info */
         struct fib_info         *fi; /* for client ref to shared metrics */
 };
 
-static inline struct inet_peer *rt_peer_ptr(struct rtable *rt)
-{
-        return inetpeer_ptr(rt->_peer);
-}
-
-static inline bool rt_has_peer(struct rtable *rt)
-{
-        return inetpeer_ptr_is_peer(rt->_peer);
-}
-
-static inline void __rt_set_peer(struct rtable *rt, struct inet_peer *peer)
-{
-        __inetpeer_ptr_set_peer(&rt->_peer, peer);
-}
-
-static inline bool rt_set_peer(struct rtable *rt, struct inet_peer *peer)
-{
-        return inetpeer_ptr_set_peer(&rt->_peer, peer);
-}
-
-static inline void rt_init_peer(struct rtable *rt, struct inet_peer_base *base)
-{
-        inetpeer_init_ptr(&rt->_peer, base);
-}
-
-static inline void rt_transfer_peer(struct rtable *rt, struct rtable *ort)
-{
-        rt->_peer = ort->_peer;
-        if (rt_has_peer(ort)) {
-                struct inet_peer *peer = rt_peer_ptr(ort);
-                atomic_inc(&peer->refcnt);
-        }
-}
-
 static inline bool rt_is_input_route(const struct rtable *rt)
 {
         return rt->rt_route_iif != 0;
@@ -326,27 +290,6 @@ static inline struct rtable *ip_route_newports(struct flowi4 *fl4, struct rtable
         return rt;
 }
 
-extern void rt_bind_peer(struct rtable *rt, __be32 daddr, int create);
-
-static inline struct inet_peer *__rt_get_peer(struct rtable *rt, __be32 daddr, int create)
-{
-        if (rt_has_peer(rt))
-                return rt_peer_ptr(rt);
-
-        rt_bind_peer(rt, daddr, create);
-        return (rt_has_peer(rt) ? rt_peer_ptr(rt) : NULL);
-}
-
-static inline struct inet_peer *rt_get_peer(struct rtable *rt, __be32 daddr)
-{
-        return __rt_get_peer(rt, daddr, 0);
-}
-
-static inline struct inet_peer *rt_get_peer_create(struct rtable *rt, __be32 daddr)
-{
-        return __rt_get_peer(rt, daddr, 1);
-}
-
 static inline int inet_iif(const struct sk_buff *skb)
 {
         return skb_rtable(skb)->rt_iif;
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 9cc00f8a6ee5..95bfa1ba5b28 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -889,7 +889,6 @@ static void rt_cache_invalidate(struct net *net)
 
         get_random_bytes(&shuffle, sizeof(shuffle));
         atomic_add(shuffle + 1U, &net->ipv4.rt_genid);
-        inetpeer_invalidate_family(AF_INET);
 }
 
 /*
@@ -1216,22 +1215,6 @@ skip_hashing:
         return rt;
 }
 
-void rt_bind_peer(struct rtable *rt, __be32 daddr, int create)
-{
-        struct inet_peer_base *base;
-        struct inet_peer *peer;
-
-        base = inetpeer_base_ptr(rt->_peer);
-        if (!base)
-                return;
-
-        peer = inet_getpeer_v4(base, daddr, create);
-        if (peer) {
-                if (!rt_set_peer(rt, peer))
-                        inet_putpeer(peer);
-        }
-}
-
 /*
  * Peer allocation may fail only in serious out-of-memory conditions.  However
  * we still can generate some output.
@@ -1588,10 +1571,6 @@ static void ipv4_dst_destroy(struct dst_entry *dst)
                 fib_info_put(rt->fi);
                 rt->fi = NULL;
         }
-        if (rt_has_peer(rt)) {
-                struct inet_peer *peer = rt_peer_ptr(rt);
-                inet_putpeer(peer);
-        }
 }
 
 
@@ -1711,26 +1690,11 @@ static unsigned int ipv4_mtu(const struct dst_entry *dst)
 static void rt_init_metrics(struct rtable *rt, const struct flowi4 *fl4,
                             struct fib_info *fi)
 {
-        struct inet_peer_base *base;
-        struct inet_peer *peer;
-
-        base = inetpeer_base_ptr(rt->_peer);
-        BUG_ON(!base);
-
-        peer = inet_getpeer_v4(base, rt->rt_dst, 0);
-        if (peer) {
-                __rt_set_peer(rt, peer);
-                if (inet_metrics_new(peer))
-                        memcpy(peer->metrics, fi->fib_metrics,
-                               sizeof(u32) * RTAX_MAX);
-                dst_init_metrics(&rt->dst, peer->metrics, false);
-        } else {
-                if (fi->fib_metrics != (u32 *) dst_default_metrics) {
-                        rt->fi = fi;
-                        atomic_inc(&fi->fib_clntref);
-                }
-                dst_init_metrics(&rt->dst, fi->fib_metrics, true);
+        if (fi->fib_metrics != (u32 *) dst_default_metrics) {
+                rt->fi = fi;
+                atomic_inc(&fi->fib_clntref);
         }
+        dst_init_metrics(&rt->dst, fi->fib_metrics, true);
 }
 
 static void rt_set_nexthop(struct rtable *rt, const struct flowi4 *fl4,
@@ -1820,7 +1784,6 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
         rth->rt_mark    = skb->mark;
         rth->rt_pmtu    = 0;
         rth->rt_gateway = daddr;
-        rt_init_peer(rth, dev_net(dev)->ipv4.peers);
         rth->fi = NULL;
         if (our) {
                 rth->dst.input= ip_local_deliver;
@@ -1946,7 +1909,6 @@ static int __mkroute_input(struct sk_buff *skb,
         rth->rt_mark    = skb->mark;
         rth->rt_pmtu    = 0;
         rth->rt_gateway = daddr;
-        rt_init_peer(rth, &res->table->tb_peers);
         rth->fi = NULL;
 
         rth->dst.input = ip_forward;
@@ -2125,7 +2087,6 @@ local_input:
         rth->rt_mark    = skb->mark;
         rth->rt_pmtu    = 0;
         rth->rt_gateway = daddr;
-        rt_init_peer(rth, net->ipv4.peers);
         rth->fi = NULL;
         if (res.type == RTN_UNREACHABLE) {
                 rth->dst.input= ip_error;
@@ -2323,9 +2284,6 @@ static struct rtable *__mkroute_output(const struct fib_result *res,
         rth->rt_mark    = fl4->flowi4_mark;
         rth->rt_pmtu    = 0;
         rth->rt_gateway = fl4->daddr;
-        rt_init_peer(rth, (res->table ?
-                           &res->table->tb_peers :
-                           dev_net(dev_out)->ipv4.peers));
         rth->fi = NULL;
 
         RT_CACHE_STAT_INC(out_slow_tot);
@@ -2662,7 +2620,6 @@ struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_or
                 rt->rt_dst = ort->rt_dst;
                 rt->rt_src = ort->rt_src;
                 rt->rt_gateway = ort->rt_gateway;
-                rt_transfer_peer(rt, ort);
                 rt->fi = ort->fi;
                 if (rt->fi)
                         atomic_inc(&rt->fi->fib_clntref);
@@ -2700,7 +2657,7 @@ static int rt_fill_info(struct net *net,
         struct rtmsg *r;
         struct nlmsghdr *nlh;
         unsigned long expires = 0;
-        u32 id = 0, error;
+        u32 error;
 
         nlh = nlmsg_put(skb, pid, seq, event, sizeof(*r), flags);
         if (nlh == NULL)
@@ -2753,11 +2710,6 @@ static int rt_fill_info(struct net *net,
                 goto nla_put_failure;
 
         error = rt->dst.error;
-        if (rt_has_peer(rt)) {
-                const struct inet_peer *peer = rt_peer_ptr(rt);
-                inet_peer_refcheck(peer);
-                id = atomic_read(&peer->ip_id_count) & 0xffff;
-        }
         expires = rt->dst.expires;
         if (expires) {
                 if (time_before(jiffies, expires))
@@ -2792,7 +2744,7 @@ static int rt_fill_info(struct net *net,
                                 goto nla_put_failure;
         }
 
-        if (rtnl_put_cacheinfo(skb, &rt->dst, id, expires, error) < 0)
+        if (rtnl_put_cacheinfo(skb, &rt->dst, 0, expires, error) < 0)
                 goto nla_put_failure;
 
         return nlmsg_end(skb, nlh);
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 951bcf35b21c..87d3fcc302d4 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -90,8 +90,6 @@ static int xfrm4_fill_dst(struct xfrm_dst *xdst, struct net_device *dev,
         xdst->u.dst.dev = dev;
         dev_hold(dev);
 
-        rt_transfer_peer(&xdst->u.rt, rt);
-
         /* Sheit... I remember I did this right. Apparently,
          * it was magically lost, so this code needs audit */
         xdst->u.rt.rt_flags = rt->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST |
@@ -210,11 +208,6 @@ static void xfrm4_dst_destroy(struct dst_entry *dst)
 
         dst_destroy_metrics_generic(dst);
 
-        if (rt_has_peer(&xdst->u.rt)) {
-                struct inet_peer *peer = rt_peer_ptr(&xdst->u.rt);
-                inet_putpeer(peer);
-        }
-
         xfrm_dst_destroy(xdst);
 }