Re: [PATCH 2/2] cgroup/rstat: check updated_next only for root

[Tejun Heo]

On Sat, Dec 25, 2021 at 12:09:32AM +0000, Wei Yang wrote:
> After commit dc26532aed0a ("cgroup: rstat: punt root-level optimization to
> individual controllers"), each rstat on updated_children list has its
> ->updated_next not NULL.
> 
> This means we can remove the check on ->updated_next, if we make sure
> the subtree from @root is on list, which could be done by checking
> updated_next for root.
> 
> Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>

Applied to cgroup/for-5.17 w/ coding style fixes.

Thanks.

-- 
tejun