From ee8fa1c67f0b873a324960f0ca9fa1d7e49aa86b Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Mon, 17 Mar 2008 16:37:19 -0700 Subject: [PATCH] xen: make sure retriggered events are set pending 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 Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- 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 index 0140981e93c4..f73b53bd65b7 100644 --- a/arch/x86/xen/events.c +++ b/arch/x86/xen/events.c @@ -601,10 +601,16 @@ static void ack_dynirq(unsigned int irq) 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; } -- 2.20.1