From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E4385C2D0CE for ; Tue, 21 Jan 2020 15:33:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B43C124125 for ; Tue, 21 Jan 2020 15:33:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lca.pw header.i=@lca.pw header.b="Wu6mRIJr" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729127AbgAUPdk (ORCPT ); Tue, 21 Jan 2020 10:33:40 -0500 Received: from mail-qt1-f171.google.com ([209.85.160.171]:40581 "EHLO mail-qt1-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727508AbgAUPdk (ORCPT ); Tue, 21 Jan 2020 10:33:40 -0500 Received: by mail-qt1-f171.google.com with SMTP id v25so2906391qto.7 for ; Tue, 21 Jan 2020 07:33:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lca.pw; s=google; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=yQSao6a+Ppy+4IZJ+9ifO0X+dGmBtWenG0uMva+ys4Q=; b=Wu6mRIJrRHilWp4LN+ydNPxuYoUG0Uc1A3WXEnAsSL8sKN5yWIYvwcLak7AafqmgjA tsJcOMNHDTiEw6xRCt0InkdWJuH70RuxHOyjyNHWILN6/q896hgQgE9qrrDo+rrUdXzr MjhnMiAMHUJ3fdlb5tThbxR4Cw2upgniAmPQQMRlM9MeP3R/8XLGK01ZnD61Abtl6gVo pN2D8rriMl06+chDE5Nzm4J2HqLndwUjR8qDJNtrB5J8ky1q+zNkXRuqge5lA8TLnna7 eegGpA0SYbV5G+raQ5Jvjl7s7ygXws+oLijR0GkKFeOkYjdRZYke7CCrSLP858zojU3m 58Yw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=yQSao6a+Ppy+4IZJ+9ifO0X+dGmBtWenG0uMva+ys4Q=; b=UZgKV03fyl+TQgDS15jYiqTfb0uOey0Du+LwTdu3TOKBL7WedMmqnHi5zMRL5bv6FS b1lsg9QMHC1T88Gqwk+LQfTN06ErCCai4dB+sDA4GA8sS1lseGMGuht3ZqGvIx4dKP5K Yw9O59QBBWGfou+Xq+ezC46vmjI0e4JdIdEIgO5fgU82HWsnwP613yfZ/3alcBTb2FXx 9man1x8jjk/3DNkRyadB5KFDIc7XKvu86mGxtbxN/eZ3TSMO21UCggdJc2N8XBkNCovd ELsz55EOju1+MiBqMArw+TrrP2r4phhLVAF+6O85ZwzKByoHvWrxnjIER2dL+3MiQe3t aFLA== X-Gm-Message-State: APjAAAWqBskSEZI/nZLP4honO6UPjW9r9+OPLDTCHYVHgmqH1bxn6XX0 h6QX/ilB7xlWgpI1wwsVaAWlrA== X-Google-Smtp-Source: APXvYqyw4EDF8dlsXzfOhK/eO2nnxB+7zMS3dQiMJb675hngPd+nQbABTuj7xAqrgkIBU7KXGKV1Iw== X-Received: by 2002:ac8:70d3:: with SMTP id g19mr713587qtp.209.1579620819357; Tue, 21 Jan 2020 07:33:39 -0800 (PST) Received: from [192.168.1.153] (pool-71-184-117-43.bstnma.fios.verizon.net. [71.184.117.43]) by smtp.gmail.com with ESMTPSA id x34sm19503703qtd.20.2020.01.21.07.33.38 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 21 Jan 2020 07:33:38 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 13.0 \(3608.40.2.2.4\)) Subject: Re: [PATCH -next] x86/mm/pat: silence a data race in cpa_4k_install From: Qian Cai In-Reply-To: <20200121152853.GI7808@zn.tnic> Date: Tue, 21 Jan 2020 10:33:37 -0500 Cc: Marco Elver , Thomas Gleixner , Ingo Molnar , Dave Hansen , Andy Lutomirski , Peter Zijlstra , the arch/x86 maintainers , LKML Content-Transfer-Encoding: quoted-printable Message-Id: <44A4276D-5530-4DAA-8FC7-753D03ADD2F3@lca.pw> References: <20200121151503.2934-1-cai@lca.pw> <20200121152853.GI7808@zn.tnic> To: Borislav Petkov X-Mailer: Apple Mail (2.3608.40.2.2.4) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Jan 21, 2020, at 10:28 AM, Borislav Petkov wrote: >=20 > 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: >>=20 >> "Increments to cpa_4k_install may happen concurrently, as detected by = KCSAN: >>=20 >> <....... the stack traces ......> >=20 > ... 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=