[Xen-changelog] [xen-unstable] arm: fix inflight_irqs list priority ordering

[Xen patchbot-unstable <patchbot@xxxxxxx>]

# HG changeset patch
# User Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
# Date 1331718423 0
# Node ID e1578914bfd6d4a01276786396b7d0faf4fd3153
# Parent  48923471a385268217cc2116234945d0d3ab8efd
arm: fix inflight_irqs list priority ordering

Lower priority integers mean higher priority.
Also when we are about to insert the lowest priority IRQ so far, add it
at the end.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Committed-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---


diff -r 48923471a385 -r e1578914bfd6 xen/arch/arm/vgic.c
--- a/xen/arch/arm/vgic.c       Wed Mar 14 09:47:02 2012 +0000
+++ b/xen/arch/arm/vgic.c       Wed Mar 14 09:47:03 2012 +0000
@@ -567,14 +567,14 @@
     spin_lock(&v->arch.vgic.lock);
     list_for_each_entry ( iter, &v->arch.vgic.inflight_irqs, inflight )
     {
-        if ( iter->priority < priority )
+        if ( iter->priority > priority )
         {
             list_add_tail(&n->inflight, &iter->inflight);
             spin_unlock(&v->arch.vgic.lock);
             return;
         }
     }
-    list_add(&n->inflight, &v->arch.vgic.inflight_irqs);
+    list_add_tail(&n->inflight, &v->arch.vgic.inflight_irqs);
     spin_unlock(&v->arch.vgic.lock);
     /* we have a new higher priority irq, inject it into the guest */
     cpu_raise_softirq(v->processor, VGIC_SOFTIRQ);

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