Re: [Qemu-devel] [PATCH v3 0/5] qcow2: add fragmentation and compression info support

[Eric Blake]

On 02/07/2013 09:15 AM, Stefan Hajnoczi wrote:
> Applies on kevin/block-next (2700d627e4d73bb2aacb832a93ffac8fec78b1fd).
> 
> This series adds fragmentation info support to qcow2 and then adds compression
> info.  Previously only QED supported fragmentation info.  Note that
> fragmentation info only covers the current image, internal snapshots are not
> included.
> 
> The new BlockFragInfo.compressed field contains the number of compressed
> clusters.  qemu-img check now reports the percentage of compressed clusters 
> out
> of all allocated clusters.  This can be used to decide when to recompress an
> image or to double-check that an image is indeed compressed.
> 
> qemu-iotests was to handle the new qemu-img check output.
> 
> I have tested qcow2 images both compressed and uncompressed.
> 
> v3:
>  * Add space before '=' in qemu-img check output [kwolf]
>  * Count compressed clusters as fragmented, explained in comment [kwolf]

Series:
Reviewed-by: Eric Blake <address@hidden>

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

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