Re: [PATCH 2/2] oom reaper: handle anonymous mlocked pages

[Michal Hocko]

On Wed 06-01-16 16:42:55, Michal Hocko wrote:
> Anonymous mappings
> are not visible by any other process so doing a munlock before unmap
> is safe to do from the semantic point of view.

I was too conservative here. I have completely forgoten about the lazy
mlock handling during try_to_unmap which would keep the page mlocked if
there is an mlocked vma mapping that page. So we can safely do what I
was proposing originally. I hope I am not missing anything now. Here is
the replacement patch
---