kvm: exclude ioeventfd from counting kvm_io_range limit

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / virt / kvm / eventfd.c

diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index 64ee720b75c7ac4a80c4e1c06cd5cacf0a3fa961..1550637d1b1000837cea0c83d6a77570569138cc 100644 (file)
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -753,6 +753,7 @@ kvm_assign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
        if (ret < 0)
                goto unlock_fail;
 
+       kvm->buses[bus_idx]->ioeventfd_count++;
        list_add_tail(&p->list, &kvm->ioeventfds);
 
        mutex_unlock(&kvm->slots_lock);
@@ -798,6 +799,7 @@ kvm_deassign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
                        continue;
 
                kvm_io_bus_unregister_dev(kvm, bus_idx, &p->dev);
+               kvm->buses[bus_idx]->ioeventfd_count--;
                ioeventfd_release(p);
                ret = 0;
                break;