Re: [PATCH 04/09] memcg: make zone_reclaim_stat

[Rik van Riel]

KOSAKI Motohiro wrote:

> +struct zone_reclaim_stat*
> +mem_cgroup_get_reclaim_stat_by_page(struct page *page)
> +{
> +	return NULL;
> +}

> +		memcg_reclaim_stat = mem_cgroup_get_reclaim_stat_by_page(page);
> +		memcg_reclaim_stat->recent_rotated[!!file]++;
> +		memcg_reclaim_stat->recent_scanned[!!file]++;

Won't this cause a null pointer dereference when
not using memcg?

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