Re: [PATCH v1] mm, hwpoison: enable error handling on shmem thp

[Naoya Horiguchi]

On Tue, Feb 09, 2021 at 11:46:40AM -0800, Andrew Morton wrote:
> On Tue,  9 Feb 2021 15:21:28 +0900 Naoya Horiguchi <nao.horiguchi@xxxxxxxxx> wrote:
> 
> > Currently hwpoison code checks PageAnon() for thp and refuses to handle
> > errors on non-anonymous thps (just for historical reason).  We now
> > support non-anonymou thp like shmem one, so this patch suggests to enable
> > to handle shmem thps. Fortunately, we already have can_split_huge_page()
> > to check if a give thp is splittable, so this patch relies on it.
> 
> Thanks.  We're at -rc7 so I think I'll park this one for 5.12-rc1,
> unless it is more urgent than I believe it to be?

This patch is not so urgent, so I'm fine to make this targeted at 5.12-rc1.

Thanks,
Naoya Horiguchi