Re: [PATCH RFC v2 0/5] block: add block-dirty-bitmap-populate job

[Eric Blake]

On 5/13/20 10:49 PM, John Snow wrote:
> Hi,
>
> This is a new (very small) block job that writes a pattern into a
> bitmap. The only pattern implemented is the top allocation information.
>
> This can be used to "recover" an incremental bitmap chain if an external
> snapshot was taken without creating a new bitmap first: any writes made
> to the image will be reflected by the allocation status and can be
> written back into a bitmap.
>
> This is useful for e.g. libvirt managing backup chains if a user creates
> an external snapshot outside of libvirt.
>
> v2:
>   - Addressed some, but not all feedback
>   - Rebased on latest 'job-runner' series; but it's not clear if it
>     should be kept.

Message-id for that series? I'm not finding a message with a subject 
containing a literal 'job-runner', but am not sure which subject to look 
for instead.

I also couldn't find an obvious tag or branch at 
https://github.com/jnsnow/qemu/branches where you might have stashed 
this including prerequisites.

>   - This version doesn't address all of the feedback from v1,
>     but I am posting it to the list as an RFC.

I'm happy to try and take over these patches to prepare a v3, but only 
if I can get them to build by finding the prerequisites :)

--
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org