[Sheepdog] [PATCH 0/5] modify the usage of snapshot and cloning

Chris Webb chris at arachsys.com
Wed Feb 3 10:59:29 CET 2010

FUJITA Tomonori <fujita.tomonori at lab.ntt.co.jp> writes:

> On Mon, 11 Jan 2010 00:02:12 +0900
> MORITA Kazutaka <morita.kazutaka at lab.ntt.co.jp> wrote:
> > - make a patch
> >  $ shepherd diff src_vdi:src_tag dst_vdi:dst_tag > delta_file
> I think that we should integrate this into qemu-img since this looks
> useful with qcow2.

I think the only bit that needs internal sheepdog knowledge is a function to
get a list of blocks which differ between two snapshots. A similar function
could be written for qcow2 and then the rest of the code would be completely
generic in qemu-img as far as I can see.



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