Re: [RFC] dmisc cgroups controller

Tejun Heo <[email protected]> Sun, 16 Aug 2026 09:10:58 -1000

Newsgroups	org.kernel.vger.cgroups,org.freedesktop.lists.dri-devel,org.freedesktop.lists.intel-xe
Message-ID	<[email protected]>

On Fri, Aug 14, 2026 at 11:32:54AM +0200, Thomas HellstrÃ¶m wrote:
> Hi!
> 
> We (drm/xe GPU driver) have a use-case where we have a very limited
> number of a particular device resource (CLOS slots) that we potentially
> want to expose to unprivlieged processes for reservation / allocation.
> We want to be able to restrict per cgroups the number of CLOS slots
> that are available for reservation / allocation.
> 
> This is not a good fit for the misc controller since these resource
> types may be added and removed similar to dmem regions. Neither is it a
> good fit for the dmem controller.
> 
> Would a dmisc controller be suitable here? It would be similar to the
> misc countroller but with dynamic addition and removal of resource
> types similar to the dmem controller.
> 
> Any input greatly appreciated.

Would extending the existing misc controller be an option?

Thanks.

-- 
tejun