Re: [PATCH v1] mm: consider non-anonymous thp as unmovable page

From: Michal Hocko
Date: Thu Apr 05 2018 - 11:05:55 EST


On Thu 05-04-18 16:40:45, Kirill A. Shutemov wrote:
> On Thu, Apr 05, 2018 at 02:48:30PM +0200, Michal Hocko wrote:
[...]
> > RIght, I confused the two. What is the proper layer to fix that then?
> > rmap_walk_file?
>
> Maybe something like this? Totally untested.

This looks way too complex. Why cannot we simply split THP page cache
during migration?
--
Michal Hocko
SUSE Labs