On Mon, Nov 09, 2020 at 01:48:51PM +0000, Matthew Wilcox (Oracle) wrote:
> The calculation of the end page index was incorrect, leading to a
> regression of 70% when running stress-ng. With this fix, we instead
> see a performance improvement of 3%.
>
> Reported-by: kernel test robot <rong.a.chen@xxxxxxxxx>
> Tested-by: Xing Zhengjun <zhengjun.xing@xxxxxxxxxxxxxxx>
> Fixes: e6e88712e43b ("mm: optimise madvise WILLNEED")
> Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
