inet: add struct net argument to inet_bhashfn

Binding to some port in many namespaces may create too long
chains in bhash-es, so prepare the hashfn to take struct net
into account.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/inet_hashtables.h

diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index 735b926..61dd331 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -201,7 +201,8 @@
 extern void inet_bind_bucket_destroy(struct kmem_cache *cachep,
 				     struct inet_bind_bucket *tb);
 
-static inline int inet_bhashfn(const __u16 lport, const int bhash_size)
+static inline int inet_bhashfn(struct net *net,
+		const __u16 lport, const int bhash_size)
 {
 	return lport & (bhash_size - 1);
 }