xen/events: use locked set|clear_bit() for cpu_evtchn_mask
The per-cpu event channel masks can be updated unlocked from multiple
CPUs, so use the locked variant.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index d770b8c..d6d4f76 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -278,8 +278,8 @@
cpumask_copy(irq_to_desc(irq)->affinity, cpumask_of(cpu));
#endif
- __clear_bit(chn, cpu_evtchn_mask(cpu_from_irq(irq)));
- __set_bit(chn, cpu_evtchn_mask(cpu));
+ clear_bit(chn, cpu_evtchn_mask(cpu_from_irq(irq)));
+ set_bit(chn, cpu_evtchn_mask(cpu));
irq_info[irq].cpu = cpu;
}