Re: [RFC PATCH v2 0/4] Allow changing bs->file on reopen

[Kevin Wolf]

Am 16.02.2021 um 17:36 hat Alberto Garcia geschrieben:
> On Wed 10 Feb 2021 06:26:57 PM CET, Kevin Wolf wrote:
> 
> > You have a test case for adding a throttling filter. Can we also
> > remove it again or is there still a problem with that? I seem to
> > remember that that was a bit trickier, though I'm not sure what it
> > was. Was it that we can't have the throttle node without a file, so it
> > would possibly still have permission conflicts?
> 
> There is no problem with removing the filter anymore. See here for a
> description of the original problem:
> 
> https://lists.gnu.org/archive/html/qemu-block/2020-12/msg00090.html

Ah, nice. Can we just add removing the filter again to the test then?

> But this series is based on Vladimir's branch ("update graph permissions
> update") which reworks how the permissions are calculated on reopen and
> solves the issue.

Yes, I'm aware of this. I still hope we can get a stable blockdev-reopen
for 6.0.

Kevin