Re: [KVM PATCH v5 3/4] KVM: Fix races in irqfd using new eventfd_kref_get interface

[Avi Kivity <avi@redhat.com>]

On 06/28/2009 04:18 PM, Michael S. Tsirkin wrote:
>
> that could be the case, as we have, for example:
>
> static struct file_operations kvm_vm_fops = {
>          .release        = kvm_vm_release,
>          .unlocked_ioctl = kvm_vm_ioctl,
>          .compat_ioctl   = kvm_vm_ioctl,
>          .mmap           = kvm_vm_mmap,
> };
>
> with no owner field.
>
> Avi, shouldn't we initialize the owner field to prevent
> kvm module from going away while files are open?
>    

We do initialize it:

kvm_chardev_ops.owner = module;
kvm_vm_fops.owner = module;
kvm_vcpu_fops.owner = module;

The reason it's not done through the initializer is that we set the 
owner to the vendor module (e.g. kvm-intel.ko) so that you can't remove 
the vendor module when a guest is running.


-- 
error compiling committee.c: too many arguments to function