[NET]: Move the get_net() from sock_copy()

The sock_copy() is supposed to just clone the socket. In a perfect
world it has to be just memcpy, but we have to handle the security
mark correctly. All the extra setup must be performed in sk_clone() 
call, so move the get_net() into more proper place.
Signed-off-by: NPavel Emelyanov <xemul@openvz.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/core/sock.c

@@ -864,7 +864,6 @@ static void sock_copy(struct sock *nsk, const struct sock *osk)
 #endif
 
 	memcpy(nsk, osk, osk->sk_prot->obj_size);
-	get_net(nsk->sk_net);
 #ifdef CONFIG_SECURITY_NETWORK
 	nsk->sk_security = sptr;
 	security_sk_clone(osk, nsk);
@@ -958,6 +957,7 @@ struct sock *sk_clone(const struct sock *sk, const gfp_t priority)
 		sock_copy(newsk, sk);
 
 		/* SANITY */
+		get_net(newsk->sk_net);
 		sk_node_init(&newsk->sk_node);
 		sock_lock_init(newsk);
 		bh_lock_sock(newsk);