Re: [PATCH 3/4] cgroup: Disallow mounting v1 hierarchies without controller implementation

[Tejun Heo]

On Mon, Sep 09, 2024 at 06:32:22PM +0200, Michal Koutný wrote:
> The configs that disable some v1 controllers would still allow mounting
> them but with no controller-specific files. (Making such hierarchies
> equivalent to named v1 hierarchies.) To achieve behavior consistent with
> actual out-compilation of a whole controller, the mounts should treat
> respective controllers as non-existent.
> 
> Wrap implementation into a helper function, leverage legacy_files to
> detect compiled out controllers. The effect is that mounts on v1 would
> fail and produce a message like:
>   [ 1543.999081] cgroup: Unknown subsys name 'memory'
> 
> Signed-off-by: Michal Koutný <mkoutny@xxxxxxxx>

Applied to cgroup/for-6.12.

Thanks.

-- 
tejun