cpumask: Use modern cpumask style in Xen

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
LKML-Reference: <200911031458.38406.rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/xen/smp.c

@@ -73,7 +73,7 @@ static __cpuinit void cpu_bringup(void)
 
 	xen_setup_cpu_clockevents();
 
-	cpu_set(cpu, cpu_online_map);
+	set_cpu_online(cpu, true);
 	percpu_write(cpu_state, CPU_ONLINE);
 	wmb();