Re: [libvirt PATCH v2] Revert "cgroup/LXC: Do not condition availability of v2 by controllers"

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On Tue, Oct 25, 2022 at 01:46:22PM +0200, Michal Prívozník wrote:
> On 10/25/22 13:43, Pavel Hrdina wrote:
> > This reverts commit e49313b54ed2a149c71f9073659222742ff3ffb0.
> > This reverts commit a0f37232b9c4296ca16955cc625f75eb848ace39.
> > 
> > Revert them together to not break build.
> > 
> > This fix of the issue is incorrect and breaks usage of other controllers
> > in hybrid mode that systemd creates, specifically usage of devices and
> > cpuacct controllers as they are now assumed to be part of the cgroup v2
> > topology which is not true.
> > 
> > We need to find different solution to the issue.
> > 
> > Signed-off-by: Pavel Hrdina <phrdina@xxxxxxxxxx>
> > ---
> >  src/util/vircgroup.c   |  6 ++----
> >  src/util/vircgroupv2.c | 15 +++++++++++++++
> >  2 files changed, 17 insertions(+), 4 deletions(-)
> 
> 
> Reviewed-by: Michal Privoznik <mprivozn@xxxxxxxxxx>
> 
> This brings me back to my original proposal - let's forget that hybrid
> mode exist and aim on v1 or v2, solely.

FWIW, I thought that was already our intention. It has been recommended
to me by systemd maintainers that hybrid mode is best ignored.

With regards,
Daniel
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