Re: [v3 PATCH 4/5] mm: shmem: don't truncate page if memory failure happens

[Yang Shi]

On Tue, Oct 12, 2021 at 8:07 PM Peter Xu <peterx@xxxxxxxxxx> wrote:
>
> On Tue, Oct 12, 2021 at 08:00:31PM -0700, Yang Shi wrote:
> > The page refcount could stop collapsing hwpoison page. One could argue
> > khugepaged could bail out earlier by checking hwpoison flag, but it is
> > definitely not a must do. So it relies on refcount now.
>
> I suppose you mean the page_ref_freeze() in collapse_file()?  Yeah that seems
> to work too.  Thanks,

Yes, exactly.

>
> --
> Peter Xu
>