Re: [PATCH 2/4] mm/memcg: mem_cgroup_per_node is already set to 0 on allocation

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On Tue 11-01-22 01:03:00, Wei Yang wrote:
> kzalloc_node() would set data to 0, so it's not necessary to set it
> again.
> 
> Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>

Acked-by: Michal Hocko <mhocko@xxxxxxxx>

> ---
>  mm/memcontrol.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 11715f7323c0..a504616f904a 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -5067,8 +5067,6 @@ static int alloc_mem_cgroup_per_node_info(struct mem_cgroup *memcg, int node)
>  	}
>  
>  	lruvec_init(&pn->lruvec);
> -	pn->usage_in_excess = 0;
> -	pn->on_tree = false;
>  	pn->memcg = memcg;
>  
>  	memcg->nodeinfo[node] = pn;
> -- 
> 2.33.1

-- 
Michal Hocko
SUSE Labs




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