Re: [PATCH 0/6] x86: 5-level paging enabling for v4.12, Part 1

From: Linus Torvalds
Date: Mon Mar 13 2017 - 15:46:44 EST

On Mon, Mar 13, 2017 at 7:33 AM, Kirill A. Shutemov
<kirill.shutemov@xxxxxxxxxxxxxxx> wrote:
> Here's the first bunch of patches of 5-level patchset. Let's see if I'm on
> right track addressing Ingo's feedback. :)

Considering the bug we just had with the HAVE_GENERIC_RCU_GUP code,
I'm wondering if people would be willing to look at what it would take
to make x86 use the generic version?

The x86 version of __get_user_pages_fast() seems to be quite similar
to the generic one. And it would be lovely if all the main
architectures shared the same core gup code.