linux-kernel - Re: [PATCH -next] x86/mm/pat: silence a data race in cpa_4k

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Message-Id: <44A4276D-5530-4DAA-8FC7-753D03ADD2F3@lca.pw>
Date:   Tue, 21 Jan 2020 10:33:37 -0500
From:   Qian Cai <cai@....pw>
To:     Borislav Petkov <bp@...en8.de>
Cc:     Marco Elver <elver@...gle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        the arch/x86 maintainers <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -next] x86/mm/pat: silence a data race in cpa_4k_install



> On Jan 21, 2020, at 10:28 AM, Borislav Petkov <bp@...en8.de> wrote:
> 
> On Tue, Jan 21, 2020 at 04:19:22PM +0100, Marco Elver wrote:
>> Could you remove the verbatim copy of my email? Maybe something like:
>> 
>> "Increments to cpa_4k_install may happen concurrently, as detected by KCSAN:
>> 
>> <....... the stack traces ......>
> 
> ... and drop the stack traces and fix your subject to say what you're
> actually "fixing".

Does this title work for you?

x86/mm/pat: silence an data race for KCSAN