Re: [Qemu-devel] [PATCH 2/9] hbitmap: add hbitmap_copy

[Eric Blake]

On 06/04/2015 06:20 PM, John Snow wrote:
> It would be nice to have the flexibility to decide that
> we would like multiple backup chains (perhaps of differing
> frequency, or stored at different sites -- who knows.)
> 
> If the user didn't have the foresight to add all the requisite
> bitmaps before the drive was engaged, the copy function will
> allow them to later differentiate an incremental backup chain
> into two or more chains at will.
> 
> hbitmap_copy here is just the primitive to make copies of the
> implementation bitmap.
> 
> Signed-off-by: John Snow <address@hidden>
> ---
>  include/qemu/hbitmap.h |  9 +++++++++
>  util/hbitmap.c         | 17 +++++++++++++++++
>  2 files changed, 26 insertions(+)
> 

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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