linux-kernel - Re: [GIT PULL] x86/mm changes for v4.12

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Message-ID: <20170523142434.65wlwjeqqixo7gjs@node.shutemov.name>
Date:   Tue, 23 May 2017 17:24:34 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Andy Lutomirski <luto@...nel.org>,
        Borislav Petkov <bp@...en8.de>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [GIT PULL] x86/mm changes for v4.12

On Mon, May 01, 2017 at 02:00:53PM +0200, Ingo Molnar wrote:
>  - Continued Intel 5-level paging enablement: in particular the conversion 
>    of x86 GUP to the generic GUP code. (Kirill A. Shutemov)
> 
...
> 
> I'd like to draw special attention to this late MM commit:
> 
>   71389703839e: mm, zone_device: Replace {get, put}_zone_device_page() with a single reference to fix pmem crash
> 
> ... which is a late fix, and which I believe is the right thing to do - but please 
> double check.

I've just noticied that the x86 GUP conversion haven't made it's way to
v4.12: the fix got applied (71389703839e), but the final commit that does
convertion keeped reverted -- 6dd29b3df975.

I guess it's too late for v4.12...

Ingo could you re-apply 2947ba054a4d ("x86/mm/gup: Switch GUP to the
generic get_user_page_fast() implementation") to be queued to v4.13?

-- 
 Kirill A. Shutemov