Re: [PATCH 1/2] mm: Allow architectures to request 'old' entries when prefaulting

[Kirill A. Shutemov]

On Sun, Dec 27, 2020 at 03:40:36PM -0800, Linus Torvalds wrote:
> I think Kirill was intending to move the "if (ret)" up into the path
> that sets it, IOW something like
> 
> +       if (!(vma->vm_flags & VM_SHARED)) {
> +               ret = check_stable_address_space(vma->vm_mm);
> +               if (ret)
> +                       return ret;
> +       }
> 
> instead. But that patch as-is is broken.
> 
> Kirill?

Right. Once again, patch is below.