Re: [PATCH v2] cgroup-v1: add disabled controller check in cgroup1_parse_param()

[chenzhou]

On 2021/1/15 11:17, Tejun Heo wrote:
> Hello,
>
> On Fri, Jan 15, 2021 at 09:55:43AM +0800, chenzhou wrote:
>> Yeah, this will select all enabled controllers, but which doesn't the behavior we want.
>> I think the case should return error with information "Disabled controller xx" rather than
>> attaching all the other enabled controllers.
>>
>> For example, boot with cgroup_no_v1=cpu, and then mount with
>> "mount -t cgroup -o cpu cpu /sys/fs/cgroup/cpu", then all enabled controllers will
>> be attached expect cpu.
> Okay, that explanation actually makes sense. Can you please update the
> description to include what's broken and how it's being fixed? It really
> isn't clear what the patch is trying to achieve from the current
> description.
Ok, will update the description.
>
> Thanks.
>