lockd: rename lockd_create_svc() to lockd_get()

lockd_create_svc() already does an svc_get() if the service already
exists, so it is more like a "get" than a "create".

So:
 - Move the increment of nlmsvc_users into the function as well
 - rename to lockd_get().

It is now the inverse of lockd_put().
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

fs/lockd/svc.c

@@ -396,16 +396,14 @@ static const struct svc_serv_ops lockd_sv_ops = {
 	.svo_enqueue_xprt	= svc_xprt_do_enqueue,
 };
 
-static int lockd_create_svc(void)
+static int lockd_get(void)
 {
 	struct svc_serv *serv;
 	int error;
 
-	/*
-	 * Check whether we're already up and running.
-	 */
 	if (nlmsvc_serv) {
 		svc_get(nlmsvc_serv);
+		nlmsvc_users++;
 		return 0;
 	}
 
@@ -439,6 +437,7 @@ static int lockd_create_svc(void)
 	register_inet6addr_notifier(&lockd_inet6addr_notifier);
 #endif
 	dprintk("lockd_up: service created\n");
+	nlmsvc_users++;
 	return 0;
 }
 
@@ -472,10 +471,9 @@ int lockd_up(struct net *net, const struct cred *cred)
 
 	mutex_lock(&nlmsvc_mutex);
 
-	error = lockd_create_svc();
+	error = lockd_get();
 	if (error)
 		goto err;
-	nlmsvc_users++;
 
 	error = lockd_up_net(nlmsvc_serv, net, cred);
 	if (error < 0) {