[PATCH 3.8 107/116] hugetlb: fix copy_hugetlb_page_range() to handle migration/hwpoisoned entry

[Hugh Dickins]

On Wed, 23 Jul 2014, Kamal Mostafa wrote:
> On Tue, 2014-07-22 at 16:08 -0700, Hugh Dickins wrote:
> > On Tue, 22 Jul 2014, Kamal Mostafa wrote:
> > 
> > > 3.8.13.27 -stable review patch.  If anyone has any objections, please let me know.
> > > 
> > > ------------------
> > > 
> > > From: Naoya Horiguchi <n-horiguchi at ah.jp.nec.com>
> > > 
> > > commit 4a705fef986231a3e7a6b1a6d3c37025f021f49f upstream.
> > > 
> > > There's a race between fork() and hugepage migration, as a result we try
> > > [...]
> > 
> > Please drop this one for now: other -stables have carried it, but it
> > was found last week to contain a bug of its own, arguably worse than
> > what it's fixing.  Naoya-san has done the fix for that, it's in mmotm
> > and should make its way to Linus probably this week: so please hold
> > this back until that can join it - thanks.
> > 
> > Hugh
> 
> OK, I've dropped it from the 3.8-stable queue, and will watch for the
> fix to land.  Thanks very much, Hugh!

commit 0253d634e0803a8376a0d88efee0bf523d8673f9
Author: Naoya Horiguchi <n-horiguchi at ah.jp.nec.com>
Date:   Wed Jul 23 14:00:19 2014 -0700
mm: hugetlb: fix copy_hugetlb_page_range()

is now in Linus's tree: so the original patch is good to go into
your -stables, so long as you add 0253d634e080 on top.

Hugh