On 09/05/2016 01:13 PM, Kevin Wolf wrote: > From: Pavel Butsykin <pbutsy...@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. > > The patch adds a flag to the qmp/hmp drive-backup command which enables > block compression. Compression should be implemented in the format driver > to enable this feature. >
> +++ b/qapi/block-core.json > @@ -898,6 +898,9 @@ > # Must be present if sync is "incremental", must NOT be present > # otherwise. (Since 2.4) > # > +# @compress: #optional true to compress data, if the target format supports > it. > +# (default: false) (since 2.7) This missed 2.7; we need a followup patch to adjust it to 2.8. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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