Re: [Qemu-devel] [PATCH 1/9] virtio-dataplane: pass assign=true to virtio_queue_aio_set_host_notifier_handler

[Paolo Bonzini]

On 30/03/2016 15:23, Cornelia Huck wrote:
> > There is no need to run the handler one last time; the device is being
> > reset and it is okay to drop requests that are pending in the virtqueue.
> 
> What about virtio_blk_save()? Could there be any pending requests in
> that case?

Those would be processed when dataplane is restarted on the destination
side, I think.  virtio_queue_set_host_notifier_fd_handler calls
virtio_queue_host_notifier_read which connects the host notifier to the
I/O thread and calls event_notifier_set to start processing it.

Paolo