[Devel] Re: [RFC][ for -mm] memory controller enhancements for NUMA [10/10] per-zone-lru

YAMAMOTO Takashi yamamoto at valinux.co.jp
Wed Nov 14 01:11:37 PST 2007


> +struct mc_lru_head {
> +	struct list_head active_list[MAX_NR_ZONES];
> +	struct list_head inactive_list[MAX_NR_ZONES];
> +};
> +

i guess
	struct foo {
		struct list_head active_list;
		struct list_head inactive_list;
	} lists[MAX_NR_ZONES];
is better.

> @@ -139,8 +144,20 @@ struct mem_cgroup {
>  	 * Per zone statistics (used for memory reclaim)
>  	 */
>  	struct mem_cgroup_zonestat zstat;
> +#ifndef CONFIG_NUMA
> +	struct lru_head	local_head;
> +#endif

	struct mc_lru_head local_lru;

> +static int mem_cgroup_init_lru(struct mem_cgroup *mem)
> +{
> +	int zone;
> +	mem->lrus[0] = &mem->local_lru;

'zone' seems unused.

YAMAMOTO Takashi
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