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Subject[PATCH 28 of 31] xen: make sure retriggered events are set pending
Date
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retrigger_dynirq() was incomplete, and didn't properly set the event
to be pending again. It doesn't seem to actually get used.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
---
arch/x86/xen/events.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/arch/x86/xen/events.c b/arch/x86/xen/events.c
--- a/arch/x86/xen/events.c
+++ b/arch/x86/xen/events.c
@@ -601,10 +601,16 @@
static int retrigger_dynirq(unsigned int irq)
{
int evtchn = evtchn_from_irq(irq);
+ struct shared_info *sh = HYPERVISOR_shared_info;
int ret = 0;

if (VALID_EVTCHN(evtchn)) {
- set_evtchn(evtchn);
+ int masked;
+
+ masked = sync_test_and_set_bit(evtchn, sh->evtchn_mask);
+ sync_set_bit(evtchn, sh->evtchn_pending);
+ if (!masked)
+ unmask_evtchn(evtchn);
ret = 1;
}




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