[Devel] Re: [PATCH][for -mm] per-zone and reclaim enhancements for memory controller take 3 [3/10] per-zone active inactive counter

[YAMAMOTO Takashi]

> @@ -651,10 +758,11 @@
>  		/* Avoid race with charge */
>  		atomic_set(&pc->ref_cnt, 0);
>  		if (clear_page_cgroup(page, pc) == pc) {
> +			int active;
>  			css_put(&mem->css);
> +			active = pc->flags & PAGE_CGROUP_FLAG_ACTIVE;
>  			res_counter_uncharge(&mem->res, PAGE_SIZE);
> -			list_del_init(&pc->lru);
> -			mem_cgroup_charge_statistics(mem, pc->flags, false);
> +			__mem_cgroup_remove_list(pc);
>  			kfree(pc);
>  		} else 	/* being uncharged ? ...do relax */
>  			break;

'active' seems unused.

YAMAMOTO Takashi
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