[PATCH v2 00/10] qemu: add option to process offloaded legacy blockjob event ealier

[Peter Krempa]

On Fri, Nov 13, 2020 at 09:53:28 +0300, Nikolay Shirokovskiy wrote:
> This is successor to [1] but I changed the subject as in the review the patch
> 'qemu: sync backing chain update in virDomainGetBlockJobInfo' was not
> considered good one from design POV. However I think the basic patch is helpful
> to address similar issues. Look at [*] for example, there it allows to sync
> backing chains during query block stats.
> 
> In discussion of [1] I stated that first patch will also allow to get rid of
> stale block job events on reconnection to qemu. But this will require
> additional work actually so with this patch series stale events are still
> present. And in the discussion it was also mentioned by Peter that stale events
> are not harmful for legacy blockjobs code. I also removed previous attempts to
> eliminate some of stale events.
> 
> I still keep patch for virDomainGetBlockJobInfo. May be in comparsion to [*]
> the approach the patch takes will look not so bad :)
> 
> [1] First version of the patch series
> https://www.redhat.com/archives/libvir-list/2020-October/msg01133.html

Please allow for longer review time. I'm stuffed with other work and
also as I've pointed out last time I'm not very in favor of modifying
the old block job code since it's being phased out.

I still suggest the client application is fixed to use the events and
stop polling virDomainGetBlockJobInfo.