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

[Peter Xu]

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,

-- 
Peter Xu