[PATCH KERNEL] xen/events: use xen_vcpu_id mapping for EVTCHNOP_status

From	Vitaly Kuznetsov <vkuznets@redhat.com>
Newsgroups	linux.kernel
Subject	[PATCH KERNEL] xen/events: use xen_vcpu_id mapping for EVTCHNOP_status
Date	2016-11-23 13:40 +0100
Message-ID	<sGF0d-4Vd-11@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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EVTCHNOP_status hypercall returns Xen's idea of vcpu id so we need to
compare it against xen_vcpu_id mapping, not the Linux cpu id.

Suggested-by: Radim Krcmar <rkrcmar@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
 drivers/xen/events/events_base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 9ecfcdc..137bd0e 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -948,7 +948,7 @@ static int find_virq(unsigned int virq, unsigned int cpu)
 			continue;
 		if (status.status != EVTCHNSTAT_virq)
 			continue;
-		if (status.u.virq == virq && status.vcpu == cpu) {
+		if (status.u.virq == virq && status.vcpu == xen_vcpu_nr(cpu)) {
 			rc = port;
 			break;
 		}
-- 
2.7.4

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[PATCH KERNEL] xen/events: use xen_vcpu_id mapping for EVTCHNOP_status Vitaly Kuznetsov <vkuznets@redhat.com> - 2016-11-23 13:40 +0100
  Re: [PATCH KERNEL] xen/events: use xen_vcpu_id mapping for  EVTCHNOP_status Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-11-23 17:20 +0100

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