On 05/31/2016 03:15 AM, Denis V. Lunev wrote:
> From: Pavel Butsykin <pbutsykin@virtuozzo.com>
> 
> The idea is simple - backup is "written-once" data. It is written block
> by block and it is large enough. It would be nice to save storage
> space and compress it.
> 

> +++ b/qapi/block-core.json
> @@ -926,6 +926,9 @@
>  # @speed: #optional the maximum speed, in bytes per second. The default is 0,
>  #         for unlimited.
>  #
> +# @compress: #optional the compression data blocks (if the target format
> +#            supports it; default: false).
> +#

Missing a '(since 2.7)' designation.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org