Re: [PATCH 3/4] Count the number of times zone_reclaim() scans and fails

[KOSAKI Motohiro]

Hi

I like this patch. thank you mel.

> @@ -2489,6 +2489,10 @@ int zone_reclaim(struct zone *zone, gfp_t gfp_mask, unsigned int order)
>  	ret = __zone_reclaim(zone, gfp_mask, order);
>  	zone_clear_flag(zone, ZONE_RECLAIM_LOCKED);
>  
> +	if (!ret) {
> +		count_vm_events(PGSCAN_ZONERECLAIM_FAILED, 1);
> +	}
> +
>  	return ret;


count_vm_event(PGSCAN_ZONERECLAIM_FAILED)?




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