84db52d059
Although the dataplane thread does not cooperate with dirty memory logging yet it's fairly easy to temporarily disable dataplane during live migration. This way virtio-blk can live migrate when x-data-plane=on. The dataplane thread will restart after migration is cancelled or if the guest resuming virtio-blk operation after migration completes. Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>