[libvirt] [PATCH 20/53] vircgroup: register cgroup v2 backend

[Michal Privoznik]

On 10/02/2018 10:44 AM, Pavel Hrdina wrote:
> All mandatory callbacks are implemented for cgroup v2 backend so we
> can register it now.
> 
> Signed-off-by: Pavel Hrdina <phrdina at redhat.com>
> ---
>  src/util/vircgroupbackend.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/src/util/vircgroupbackend.c b/src/util/vircgroupbackend.c
> index 79fe6cb73d..7ee39ac8ca 100644
> --- a/src/util/vircgroupbackend.c
> +++ b/src/util/vircgroupbackend.c
> @@ -52,6 +52,7 @@ virCgroupBackendRegister(virCgroupBackendPtr backend)
>  static void
>  virCgroupBackendOnceInit(void)
>  {
> +    virCgroupV2Register();
>      virCgroupV1Register();
>  }
>  
> 

Well, the callbacks are implemented, but that's about it. No API that
involves reading/setting a value from CGroup will work at this point, oui?

For instance:

virsh blkiotune fedora
error: Operation not supported: operation 'getBlkioWeight' not supported

ACK if you move this to be the very last patch (or somewhere before the
tests - I haven't gotten that far yet, so I don't know how tests are
implemented, whether they need the v2 backend to be registered or not).

Michal