KVM: irqchip: Provide and use accessors for irq routing table

[karo-tx-linux.git] / virt / kvm / eventfd.c

diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index bae593a545c578f3afe8534e3c9cbed23d3cd0e1..15fa9488b2d00b324c434f8ee0b3f02b105ad281 100644 (file)
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -282,20 +282,22 @@ static void irqfd_update(struct kvm *kvm, struct _irqfd *irqfd,
                         struct kvm_irq_routing_table *irq_rt)
 {
        struct kvm_kernel_irq_routing_entry *e;
+       struct kvm_kernel_irq_routing_entry entries[KVM_NR_IRQCHIPS];
+       int i, n_entries;
+
+       n_entries = kvm_irq_map_gsi(entries, irq_rt, irqfd->gsi);
 
        write_seqcount_begin(&irqfd->irq_entry_sc);
 
        irqfd->irq_entry.type = 0;
-       if (irqfd->gsi >= irq_rt->nr_rt_entries)
-               goto out;
 
-       hlist_for_each_entry(e, &irq_rt->map[irqfd->gsi], link) {
+       e = entries;
+       for (i = 0; i < n_entries; ++i, ++e) {
                /* Only fast-path MSI. */
                if (e->type == KVM_IRQ_ROUTING_MSI)
                        irqfd->irq_entry = *e;
        }
 
- out:
        write_seqcount_end(&irqfd->irq_entry_sc);
 }