Re: [PATCH 4/4] mm: numa: Slow PTE scan rate if migration failures occur

Mel Gorman
2015-03-12T18:49:55Z

On Thu, Mar 12, 2015 at 09:20:36AM -0700, Linus Torvalds wrote:
> On Thu, Mar 12, 2015 at 6:10 AM, Mel Gorman <mgorman@suse.de> wrote:
> >
> > I believe you're correct and it matches what was observed. I'm still
> > travelling and wireless is dirt but managed to queue a test using pmd_dirty
>
> Ok, thanks.
>
> I'm not entirely happy with that change, and I suspect the whole
> heuristic should be looked at much more (maybe it should also look at
> whether it's executable, for example), but it's a step in the right
> direction.
>

I can follow up when I'm back in work properly. As you have already pulled
this in directly, can you also consider pulling in "mm: thp: return the
correct value for change_huge_pmd" please? The other two patches were very
minor can be resent through the normal paths later.