[PATCH V4 resend] lib/group_cpus.c: avoid to acquire cpu hotplug lock in group_cpus_evenly

[Andrew Morton]

On Wed, 6 Dec 2023 16:41:44 -0800 Yury Norov <yury.norov at gmail.com> wrote:

> Although, it's not related to this patch directly. So, if you fix
> zalloc_cpumask_var(), the patch looks good to me.
> 
> Reviewed-by: Yury Norov <yury.norov at gmail.com>

Thanks.

I just moved this into mm.git's non-rebasing mm-hotfixes-stable branch,
so I'd prefer not to have to redo it at this stage.

Let's do these things (with which I agree) as a followup patch, please.