Re: [PATCH] dax: Fix missed PMD wakeups

[Dan Williams]

On Wed, Jul 3, 2019 at 5:17 AM Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote:
>
> On Wed, Jul 03, 2019 at 12:24:54AM -0700, Dan Williams wrote:
> > This fix may increase waitqueue contention, but a fix for that is saved
> > for a larger rework. In the meantime this fix is suitable for -stable
> > backports.
>
> I think this is too big for what it is; just the two-line patch to stop
> incorporating the low bits of the PTE would be more appropriate.

Sufficient, yes, "appropriate", not so sure. All those comments about
pmd entry size are stale after this change.