On Thu, Apr 11, 2013 at 6:15 PM, Stefan Hajnoczi <stefa...@gmail.com> wrote:
> On Mon, Apr 01, 2013 at 04:20:32PM +0800, Liu Ping Fan wrote:
>> @@ -51,7 +50,7 @@ bool vring_setup(Vring *vring, VirtIODevice *vdev, int n)
>>
>> void vring_teardown(Vring *vring)
>> {
>> - hostmem_finalize(&vring->hostmem);
>> + memory_region_unref(vring->vring_mr);
>> }
>
> dataplane keeps a reference to the vring. This prevents memory hot
> unplug while the device is up. If this is a problem we'll have to
> reduce the lifespan of the vring mapping.
>
hot unplug is rare case, maybe we can ignore the delay of device's finalize.
> Stefan
