ipvs: Store ipvs not net in struct ip_vs_conn_param

In practice struct netns_ipvs is as meaningful as struct net and more
useful as it holds the ipvs specific data.  So store a pointer to
struct netns_ipvs.

Update the accesses of param->net to access param->ipvs->net instead.

When lookup up struct ip_vs_conn in a hash table replace comparisons
of cp->net with comparisons of cp->ipvs which is possible
now that ipvs is present in ip_vs_conn_param.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 3bf6da8..8cca99b 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -545,7 +545,7 @@
 					      unsigned short proto);
 
 struct ip_vs_conn_param {
-	struct net			*net;
+	struct netns_ipvs		*ipvs;
 	const union nf_inet_addr	*caddr;
 	const union nf_inet_addr	*vaddr;
 	__be16				cport;
@@ -1208,7 +1208,7 @@
 					 __be16 vport,
 					 struct ip_vs_conn_param *p)
 {
-	p->net = net;
+	p->ipvs = net_ipvs(net);
 	p->af = af;
 	p->protocol = protocol;
 	p->caddr = caddr;