On Thu, Mar 12, 2015 at 09:20:36AM -0700, Linus Torvalds wrote:

On Thu, Mar 12, 2015 at 6:10 AM, Mel Gorman [off-list ref] wrote:

quoted

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.