Re: [RFC][for -mm] memory controller enhancements for reclaiming take2 [2/8] add BUG_ON() in mem_cgroup_zoneinfo

[Balbir Singh <balbir-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>]

KAMEZAWA Hiroyuki wrote:
> This should be BUG_ON(). I misunderstood initialization path.
> 
> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
> 
>  mm/memcontrol.c |    3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> 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
> @@ -206,8 +206,7 @@ static void mem_cgroup_charge_statistics
>  static inline struct mem_cgroup_per_zone *
>  mem_cgroup_zoneinfo(struct mem_cgroup *mem, int nid, int zid)
>  {
> -	if (!mem->info.nodeinfo[nid])
> -		return NULL;
> +	BUG_ON(!mem->info.nodeinfo[nid]);
>  	return &mem->info.nodeinfo[nid]->zoneinfo[zid];
>  }
> 
> 

Acked-by: Balbir Singh <balbir-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>

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