linux-kernel - Re: [PATCH 00/33] x86 FPU fixes and cleanups for v4.14

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Date:   Sat, 23 Sep 2017 17:03:14 +0200
From:   Juergen Gross <jgross@...e.com>
To:     Ingo Molnar <mingo@...nel.org>, linux-kernel@...r.kernel.org
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Eric Biggers <ebiggers3@...il.com>,
        Andy Lutomirski <luto@...capital.net>,
        Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        "H . Peter Anvin" <hpa@...or.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Oleg Nesterov <oleg@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Rik van Riel <riel@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Yu-cheng Yu <yu-cheng.yu@...el.com>
Subject: Re: [PATCH 00/33] x86 FPU fixes and cleanups for v4.14

On 23/09/17 15:02, Ingo Molnar wrote:
> 
> * Ingo Molnar <mingo@...nel.org> wrote:
> 
>> So I'd like to push these changes to Linus tomorrow-ish as an RFC pull
>> request in 1-2 days, because there's now 4 fixes depending on these
>> changes, and because the result will be more maintainable for the
>> LTS v4.14 kernel.
>>
>> The biggest changes from the earlier iterations is the fixes from
>> Eric Biggers for information leaks, plus more cleanups. I have also
>> removed the change that Peter Zijlstra and others felt uneasy about,
>> the ::last_cpu -> ::fpregs_cached change to the state machine. This
>> should make the changes uncontroversial.
>>
>> Due to taking out that patch I had to rebase the changes, most of which
>> have accrued months of testing in linux-next. So I'm pretty confident
>> about the overall stability of it. (Famous last words.)
> 
> I forgot to mention that these changes are also available in tip:master
> (and tip:WIP.x86/fpu), at:
> 
>   git git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git master

Really? Did you hijack the Xen tree? :-)


Juergen