Re: [PATCH 1/5] mm/memcg: Pass both memcg and lruvec to mod_memcg_lruvec_state()

[Shakeel Butt]

On Fri, Apr 9, 2021 at 4:19 PM Waiman Long <longman@xxxxxxxxxx> wrote:
>
> The caller of mod_memcg_lruvec_state() has both memcg and lruvec readily
> available. So both of them are now passed to mod_memcg_lruvec_state()
> and __mod_memcg_lruvec_state(). The __mod_memcg_lruvec_state() is
> updated to allow either of the two parameters to be set to null. This
> makes mod_memcg_lruvec_state() equivalent to mod_memcg_state() if lruvec
> is null.
>
> Signed-off-by: Waiman Long <longman@xxxxxxxxxx>

Similar to Roman's suggestion: instead of what this patch is doing the
'why' would be better in the changelog.

Reviewed-by: Shakeel Butt <shakeelb@xxxxxxxxxx>