[NETNS]: Add namespace parameter to ip_route_output_flow.

Needed to propagate it down to the __ip_route_output_key.

Signed_off_by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/route.h

diff --git a/include/net/route.h b/include/net/route.h
index 3e3b14e..6b970d7 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -112,7 +112,7 @@
 extern void		rt_cache_flush(int how);
 extern int		__ip_route_output_key(struct net *, struct rtable **, const struct flowi *flp);
 extern int		ip_route_output_key(struct rtable **, struct flowi *flp);
-extern int		ip_route_output_flow(struct rtable **rp, struct flowi *flp, struct sock *sk, int flags);
+extern int		ip_route_output_flow(struct net *, struct rtable **rp, struct flowi *flp, struct sock *sk, int flags);
 extern int		ip_route_input(struct sk_buff*, __be32 dst, __be32 src, u8 tos, struct net_device *devin);
 extern unsigned short	ip_rt_frag_needed(struct iphdr *iph, unsigned short new_mtu);
 extern void		ip_rt_send_redirect(struct sk_buff *skb);
@@ -167,7 +167,7 @@
 		*rp = NULL;
 	}
 	security_sk_classify_flow(sk, &fl);
-	return ip_route_output_flow(rp, &fl, sk, flags);
+	return ip_route_output_flow(&init_net, rp, &fl, sk, flags);
 }
 
 static inline int ip_route_newports(struct rtable **rp, u8 protocol,
@@ -184,7 +184,7 @@
 		ip_rt_put(*rp);
 		*rp = NULL;
 		security_sk_classify_flow(sk, &fl);
-		return ip_route_output_flow(rp, &fl, sk, 0);
+		return ip_route_output_flow(&init_net, rp, &fl, sk, 0);
 	}
 	return 0;
 }