Re: [PATCH v2 3/5] mm/vmstat: add zone range overlapping check

[Vlastimil Babka]

On 1.4.2016 4:06, js1304@xxxxxxxxx wrote:
> From: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
> 
> There is a system that node's pfn are overlapped like as following.
> 
> -----pfn-------->
> N0 N1 N2 N0 N1 N2
> 
> Therefore, we need to care this overlapping when iterating pfn range.
> 
> There are two places in vmstat.c that iterates pfn range and
> they don't consider this overlapping. Add it.
> 
> Without this patch, above system could over count pageblock number
> on a zone.
> 
> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>

Acked-by: Vlastimil Babka <vbabka@xxxxxxx>