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Commit e0419564 authored by Jeremy Fitzhardinge's avatar Jeremy Fitzhardinge
Browse files

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: default avatarJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
parent 1c6969ec

drivers/xen/events.c

+2 −2
Original line number Original line Diff line number Diff line
@@ -278,8 +278,8 @@ static void bind_evtchn_to_cpu(unsigned int chn, unsigned int cpu) 
	cpumask_copy(irq_to_desc(irq)->affinity, cpumask_of(cpu));

	cpumask_copy(irq_to_desc(irq)->affinity, cpumask_of(cpu));

#endif

#endif





	__clear_bit(chn, cpu_evtchn_mask(cpu_from_irq(irq)));

	clear_bit(chn, cpu_evtchn_mask(cpu_from_irq(irq)));

	__set_bit(chn, cpu_evtchn_mask(cpu));

	set_bit(chn, cpu_evtchn_mask(cpu));





	irq_info[irq].cpu = cpu;

	irq_info[irq].cpu = cpu;

}

}