xen: register timer interrupt with IRQF_TIMER

Otherwise the timer is disabled by dpm_suspend_noirq() which in turn prevents
correct operation of stop_machine on multi-processor systems and breaks
suspend.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stable Kernel <stable@kernel.org>

diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index 6bbff94..9d1f853 100644 (file)
--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -434,7 +434,7 @@ void xen_setup_timer(int cpu)
                name = "<timer kasprintf failed>";
 
        irq = bind_virq_to_irqhandler(VIRQ_TIMER, cpu, xen_timer_interrupt,
-                                     IRQF_DISABLED|IRQF_PERCPU|IRQF_NOBALANCING,
+                                     IRQF_DISABLED|IRQF_PERCPU|IRQF_NOBALANCING|IRQF_TIMER,
                                      name, NULL);
 
        evt = &per_cpu(xen_clock_events, cpu);