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