nfsd4: remove use of mutex for file_hashtable

[safe/jmp/linux-2.6] / virt / kvm / kvm_main.c

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 277ea7f..29a667c 100644 (file)
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -296,8 +296,8 @@ static int assigned_device_update_intx(struct kvm *kvm,
 
        if (irqchip_in_kernel(kvm)) {
                if (!msi2intx &&
-                   adev->irq_requested_type & KVM_ASSIGNED_DEV_HOST_MSI) {
-                       free_irq(adev->host_irq, (void *)kvm);
+                   (adev->irq_requested_type & KVM_ASSIGNED_DEV_HOST_MSI)) {
+                       free_irq(adev->host_irq, (void *)adev);
                        pci_disable_msi(adev->dev);
                }
 
@@ -466,6 +466,7 @@ static int kvm_vm_ioctl_assign_device(struct kvm *kvm,
        struct kvm_assigned_dev_kernel *match;
        struct pci_dev *dev;
 
+       down_read(&kvm->slots_lock);
        mutex_lock(&kvm->lock);
 
        match = kvm_find_assigned_dev(&kvm->arch.assigned_dev_head,
@@ -527,6 +528,7 @@ static int kvm_vm_ioctl_assign_device(struct kvm *kvm,
 
 out:
        mutex_unlock(&kvm->lock);
+       up_read(&kvm->slots_lock);
        return r;
 out_list_del:
        list_del(&match->list);
@@ -538,6 +540,7 @@ out_put:
 out_free:
        kfree(match);
        mutex_unlock(&kvm->lock);
+       up_read(&kvm->slots_lock);
        return r;
 }
 #endif