linux-kernel - Re: [RFC 00/10] x86 TLB flush cleanups, moving toward PCID support

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Message-ID: <CA+55aFy3KVr9o+++d56=6iYLdp3KcqzcE0Svs-ZVqBUPTmc9Vw@mail.gmail.com>
Date:   Sun, 7 May 2017 09:05:31 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Andy Lutomirski <luto@...nel.org>
Cc:     X86 ML <x86@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Borislav Petkov <bpetkov@...e.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Mel Gorman <mgorman@...e.de>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>
Subject: Re: [RFC 00/10] x86 TLB flush cleanups, moving toward PCID support

On Sun, May 7, 2017 at 5:38 AM, Andy Lutomirski <luto@...nel.org> wrote:
>
> This series goes a long way toward cleaning up the mess.  With all the
> patches applied, there is a single function that contains the meat of
> the code to flush the TLB on a given CPU, and all the tlb flushing
> APIs call it for both local and remote CPUs.

Looks fine to me. I'm always a bit nervous about TLB changes like this
just because any potential bugs tend to be really really hard to see
and catch, but I don't see anything wrong in the series.

                  Linus