8 files changed, 27 insertions, 24 deletions

diff --git a/include/net/route.h b/include/net/route.h
index fc836ff824cc..3140cc500854 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -111,7 +111,7 @@ struct in_device;
 extern int              ip_rt_init(void);
 extern void             ip_rt_redirect(__be32 old_gw, __be32 dst, __be32 new_gw,
                                        __be32 src, struct net_device *dev);
-extern void             rt_cache_flush(int how);
+extern void             rt_cache_flush(struct net *net, int how);
 extern int              __ip_route_output_key(struct net *, struct rtable **, const struct flowi *flp);
 extern int              ip_route_output_key(struct net *, struct rtable **, struct flowi *flp);
 extern int              ip_route_output_flow(struct net *, struct rtable **rp, struct flowi *flp, struct sock *sk, int flags);
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 20c515a1be28..29df75a6bcc7 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -1197,7 +1197,7 @@ static int arp_netdev_event(struct notifier_block *this, unsigned long event, vo
         switch (event) {
         case NETDEV_CHANGEADDR:
                 neigh_changeaddr(&arp_tbl, dev);
-                rt_cache_flush(0);
+                rt_cache_flush(dev_net(dev), 0);
                 break;
         default:
                 break;
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 9de2514946ca..2e667e2f90df 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1348,7 +1348,7 @@ static int devinet_sysctl_forward(ctl_table *ctl, int write,
                                 dev_disable_lro(idev->dev);
                         }
                         rtnl_unlock();
-                        rt_cache_flush(0);
+                        rt_cache_flush(net, 0);
                 }
         }
 
@@ -1362,9 +1362,10 @@ int ipv4_doint_and_flush(ctl_table *ctl, int write,
         int *valp = ctl->data;
         int val = *valp;
         int ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
+        struct net *net = ctl->extra2;
 
         if (write && *valp != val)
-                rt_cache_flush(0);
+                rt_cache_flush(net, 0);
 
         return ret;
 }
@@ -1375,9 +1376,10 @@ int ipv4_doint_and_flush_strategy(ctl_table *table, int __user *name, int nlen,
 {
         int ret = devinet_conf_sysctl(table, name, nlen, oldval, oldlenp,
                                       newval, newlen);
+        struct net *net = table->extra2;
 
         if (ret == 1)
-                rt_cache_flush(0);
+                rt_cache_flush(net, 0);
 
         return ret;
 }
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 5ad01d63f83b..65c1503f8cc8 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -144,7 +144,7 @@ static void fib_flush(struct net *net)
         }
 
         if (flushed)
-                rt_cache_flush(-1);
+                rt_cache_flush(net, -1);
 }
 
 /*
@@ -897,21 +897,22 @@ static void fib_disable_ip(struct net_device *dev, int force)
 {
         if (fib_sync_down_dev(dev, force))
                 fib_flush(dev_net(dev));
-        rt_cache_flush(0);
+        rt_cache_flush(dev_net(dev), 0);
         arp_ifdown(dev);
 }
 
 static int fib_inetaddr_event(struct notifier_block *this, unsigned long event, void *ptr)
 {
         struct in_ifaddr *ifa = (struct in_ifaddr*)ptr;
+        struct net_device *dev = ifa->ifa_dev->dev;
 
         switch (event) {
         case NETDEV_UP:
                 fib_add_ifaddr(ifa);
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
-                fib_sync_up(ifa->ifa_dev->dev);
+                fib_sync_up(dev);
 #endif
-                rt_cache_flush(-1);
+                rt_cache_flush(dev_net(dev), -1);
                 break;
         case NETDEV_DOWN:
                 fib_del_ifaddr(ifa);
@@ -919,9 +920,9 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event,
                         /* Last address was deleted from this interface.
                            Disable IP.
                          */
-                        fib_disable_ip(ifa->ifa_dev->dev, 1);
+                        fib_disable_ip(dev, 1);
                 } else {
-                        rt_cache_flush(-1);
+                        rt_cache_flush(dev_net(dev), -1);
                 }
                 break;
         }
@@ -949,14 +950,14 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
                 fib_sync_up(dev);
 #endif
-                rt_cache_flush(-1);
+                rt_cache_flush(dev_net(dev), -1);
                 break;
         case NETDEV_DOWN:
                 fib_disable_ip(dev, 0);
                 break;
         case NETDEV_CHANGEMTU:
         case NETDEV_CHANGE:
-                rt_cache_flush(0);
+                rt_cache_flush(dev_net(dev), 0);
                 break;
         }
         return NOTIFY_DONE;
diff --git a/net/ipv4/fib_hash.c b/net/ipv4/fib_hash.c
index eeec4bf982b8..c8cac6c7f881 100644
--- a/net/ipv4/fib_hash.c
+++ b/net/ipv4/fib_hash.c
@@ -472,7 +472,7 @@ static int fn_hash_insert(struct fib_table *tb, struct fib_config *cfg)
 
                         fib_release_info(fi_drop);
                         if (state & FA_S_ACCESSED)
-                                rt_cache_flush(-1);
+                                rt_cache_flush(cfg->fc_nlinfo.nl_net, -1);
                         rtmsg_fib(RTM_NEWROUTE, key, fa, cfg->fc_dst_len, tb->tb_id,
                                   &cfg->fc_nlinfo, NLM_F_REPLACE);
                         return 0;
@@ -532,7 +532,7 @@ static int fn_hash_insert(struct fib_table *tb, struct fib_config *cfg)
 
         if (new_f)
                 fz->fz_nent++;
-        rt_cache_flush(-1);
+        rt_cache_flush(cfg->fc_nlinfo.nl_net, -1);
 
         rtmsg_fib(RTM_NEWROUTE, key, new_fa, cfg->fc_dst_len, tb->tb_id,
                   &cfg->fc_nlinfo, 0);
@@ -614,7 +614,7 @@ static int fn_hash_delete(struct fib_table *tb, struct fib_config *cfg)
                 write_unlock_bh(&fib_hash_lock);
 
                 if (fa->fa_state & FA_S_ACCESSED)
-                        rt_cache_flush(-1);
+                        rt_cache_flush(cfg->fc_nlinfo.nl_net, -1);
                 fn_free_alias(fa, f);
                 if (kill_fn) {
                         fn_free_node(f);
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index 1fb56876be54..bc05de413087 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -260,7 +260,7 @@ static size_t fib4_rule_nlmsg_payload(struct fib_rule *rule)
 
 static void fib4_rule_flush_cache(void)
 {
-        rt_cache_flush(-1);
+        rt_cache_flush(&init_net, -1);
 }
 
 static struct fib_rules_ops fib4_rules_ops_template = {
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 394db9c941a1..d16ae4623be6 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1271,7 +1271,7 @@ static int fn_trie_insert(struct fib_table *tb, struct fib_config *cfg)
 
                         fib_release_info(fi_drop);
                         if (state & FA_S_ACCESSED)
-                                rt_cache_flush(-1);
+                                rt_cache_flush(cfg->fc_nlinfo.nl_net, -1);
                         rtmsg_fib(RTM_NEWROUTE, htonl(key), new_fa, plen,
                                 tb->tb_id, &cfg->fc_nlinfo, NLM_F_REPLACE);
 
@@ -1316,7 +1316,7 @@ static int fn_trie_insert(struct fib_table *tb, struct fib_config *cfg)
         list_add_tail_rcu(&new_fa->fa_list,
                           (fa ? &fa->fa_list : fa_head));
 
-        rt_cache_flush(-1);
+        rt_cache_flush(cfg->fc_nlinfo.nl_net, -1);
         rtmsg_fib(RTM_NEWROUTE, htonl(key), new_fa, plen, tb->tb_id,
                   &cfg->fc_nlinfo, 0);
 succeeded:
@@ -1664,7 +1664,7 @@ static int fn_trie_delete(struct fib_table *tb, struct fib_config *cfg)
                 trie_leaf_remove(t, l);
 
         if (fa->fa_state & FA_S_ACCESSED)
-                rt_cache_flush(-1);
+                rt_cache_flush(cfg->fc_nlinfo.nl_net, -1);
 
         fib_release_info(fa->fa_info);
         alias_free_mem_rcu(fa);
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index fe3a02237286..cedc366505bd 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -791,7 +791,7 @@ static void rt_cache_invalidate(void)
  * delay < 0  : invalidate cache (fast : entries will be deleted later)
  * delay >= 0 : invalidate & flush cache (can be long)
  */
-void rt_cache_flush(int delay)
+void rt_cache_flush(struct net *net, int delay)
 {
         rt_cache_invalidate();
         if (delay >= 0)
@@ -2825,7 +2825,7 @@ done:
 
 void ip_rt_multicast_event(struct in_device *in_dev)
 {
-        rt_cache_flush(0);
+        rt_cache_flush(dev_net(in_dev->dev), 0);
 }
 
 #ifdef CONFIG_SYSCTL
@@ -2837,7 +2837,7 @@ static int ipv4_sysctl_rtcache_flush(ctl_table *ctl, int write,
 {
         if (write) {
                 proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
-                rt_cache_flush(flush_delay);
+                rt_cache_flush(&init_net, flush_delay);
                 return 0;
         }
 
@@ -2857,7 +2857,7 @@ static int ipv4_sysctl_rtcache_flush_strategy(ctl_table *table,
                 return -EINVAL;
         if (get_user(delay, (int __user *)newval))
                 return -EFAULT;
-        rt_cache_flush(delay);
+        rt_cache_flush(&init_net, delay);
         return 0;
 }