Re: [PATCH 0/2] Fix two above-47bit hint address vs. THP bugs

From: Kirill A. Shutemov
Date: Mon Dec 23 2019 - 18:16:39 EST


On Mon, Dec 23, 2019 at 02:25:52PM -0800, Andrew Morton wrote:
> On Fri, 20 Dec 2019 17:25:46 +0300 "Kirill A. Shutemov" <kirill@xxxxxxxxxxxxx> wrote:
>
> > The two get_unmapped_area() implementations have to be fixed to provide
> > THP-friendly mappings if above-47bit hint address is specified.
> >
>
> Do we need a cc:stable for these?

Yes, please. Otherwise users that use above-47bit hint would regress on
number of PMD-mapped THPs.

But it's not urgent. It's okay to cook it up in linux-next for a while.

--
Kirill A. Shutemov