Re: [PATCH V2 1/2] count the soft_limit reclaim in global background reclaim

[KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>]

> @@ -2320,6 +2324,8 @@ static unsigned long balance_pgdat(pg_data_t *pgdat, int order,
>  	int end_zone = 0;	/* Inclusive.  0 = ZONE_DMA */
>  	unsigned long total_scanned;
>  	struct reclaim_state *reclaim_state = current->reclaim_state;
> +	unsigned long nr_soft_reclaimed;
> +	unsigned long nr_soft_scanned;
>  	struct scan_control sc = {
>  		.gfp_mask = GFP_KERNEL,
>  		.may_unmap = 1,
> @@ -2409,11 +2415,15 @@ loop_again:
>  
>  			sc.nr_scanned = 0;
>  
> +			nr_soft_scanned = 0;
>  			/*
>  			 * Call soft limit reclaim before calling shrink_zone.
> -			 * For now we ignore the return value
>  			 */
> -			mem_cgroup_soft_limit_reclaim(zone, order, sc.gfp_mask);
> +			nr_soft_reclaimed = mem_cgroup_soft_limit_reclaim(zone,
> +							order, sc.gfp_mask,
> +							&nr_soft_scanned);
> +			sc.nr_reclaimed += nr_soft_reclaimed;
> +			total_scanned += nr_soft_scanned;
>  
>  			/*
>  			 * We put equal pressure on every zone, unless

Thank you.
	Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>



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