[Devel] Re: [RFC][for -mm] memory controller enhancements for reclaiming take2 [1/8] clean up : remove unused variable

[Balbir Singh]

KAMEZAWA Hiroyuki wrote:
> This check is not necessary now.
> 
> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu at jp.fujitsu.com>
> 
> 
> Index: linux-2.6.24-rc3-mm2/mm/memcontrol.c
> ===================================================================
> --- linux-2.6.24-rc3-mm2.orig/mm/memcontrol.c
> +++ linux-2.6.24-rc3-mm2/mm/memcontrol.c
> @@ -860,9 +860,7 @@ retry:
>  		/* 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;

Good Catch, __mem_cgroup_remove_list() takes care of this.

>  			res_counter_uncharge(&mem->res, PAGE_SIZE);
>  			__mem_cgroup_remove_list(pc);
>  			kfree(pc);
> 

Acked-by: Balbir Singh <balbir at linux.vnet.ibm.com>

-- 
	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL
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