Re: [PATCH] mm:mempolicy: skip VM_HUGETLB and VM_MIXEDMAP VMA for lazy mbind

From: David Rientjes
Date: Tue Jan 19 2016 - 17:24:58 EST


On Mon, 18 Jan 2016, Liang Chen wrote:

> VM_HUGETLB and VM_MIXEDMAP vma needs to be excluded to avoid compound
> pages being marked for migration and unexpected COWs when handling
> hugetlb fault.
>
> Thanks to Naoya Horiguchi for reminding me on these checks.
>
> Signed-off-by: Liang Chen <liangchen.linux@xxxxxxxxx>
> Signed-off-by: Gavin Guo <gavin.guo@xxxxxxxxxxxxx>

Acked-by: David Rientjes <rientjes@xxxxxxxxxx>

I think it should also have

Suggested-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>