Re: [Qemu-block] [Qemu-devel] [RFC PATCH V4] qemu-img: make convert async

[Vladimir Sementsov-Ogievskiy]

Hi!

20.02.2017 17:59, Peter Lieven wrote:
> Am 20.02.2017 um 15:50 schrieb Stefan Hajnoczi:
> > On Fri, Feb 17, 2017 at 05:00:24PM +0100, Peter Lieven wrote:
> > > this is something I have been thinking about for almost 2 years now.
> > > we heavily have the following two use cases when using qemu-img 
> > > convert.

[...]

> > Does this patch work with compressed images?  Especially the
> > out-of-order write mode may be problematic with a compressed qcow2 
> > image.
>
> It does, but you are right, out-of-order writes and compression should
> be mutually exclusive.


Sorry for being late, but can you please explain to me, why?


--
Best regards,
Vladimir