xen: add resend_irq_on_evtchn() definition into events.c (642e0c88) · Commits · 戴 / test

Define resend_irq_on_evtchn() which ia64/xen uses. Although it isn't used by current x86/xen code, it's arch generic so that put it into common code. Signed-off-by:

Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by:

Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by:

Ingo Molnar <mingo@elte.hu> Signed-off-by:

Thomas Gleixner <tglx@linutronix.de>

drivers/xen/events.c

+16 −0

Original line number	Diff line number	Diff line
		@@ -586,6 +586,22 @@ static void set_affinity_irq(unsigned irq, cpumask_t dest)
		rebind_irq_to_cpu(irq, tcpu);
		}

		int resend_irq_on_evtchn(unsigned int irq)
		{
		int masked, evtchn = evtchn_from_irq(irq);
		struct shared_info *s = HYPERVISOR_shared_info;

		if (!VALID_EVTCHN(evtchn))
		return 1;

		masked = sync_test_and_set_bit(evtchn, s->evtchn_mask);
		sync_set_bit(evtchn, s->evtchn_pending);
		if (!masked)
		unmask_evtchn(evtchn);

		return 1;
		}

		static void enable_dynirq(unsigned int irq)
		{
		int evtchn = evtchn_from_irq(irq);

include/xen/events.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -31,6 +31,7 @@ int bind_ipi_to_irqhandler(enum ipi_vector ipi,
		void unbind_from_irqhandler(unsigned int irq, void *dev_id);

		void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector);
		int resend_irq_on_evtchn(unsigned int irq);

		static inline void notify_remote_via_evtchn(int port)
		{

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