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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 03B57C0650E for ; Thu, 4 Jul 2019 21:51:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CA397218A4 for ; Thu, 4 Jul 2019 21:51:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1562277099; bh=liSwsfTSayzcp2ggNxY8SpsNtsP/R82WSTHXE3qSnX0=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=bB0R2p4LwW0aZVN4RnNmK6CTKH3NMxa2fnTWS35pa0CYQozuam/A8Ypi6APJ6SAXO FAf3PbCDqhr3Wlh2+gh3hJSV471JGiNQYh5a9g8FIBinvMeMBd+vvKnkGhvrwWifNo E+uzUY/1HkvngeMEHwfvJMifxxcfiK4u99UjfvzU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727356AbfGDVvi (ORCPT ); Thu, 4 Jul 2019 17:51:38 -0400 Received: from mail.kernel.org ([198.145.29.99]:58986 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726069AbfGDVvi (ORCPT ); Thu, 4 Jul 2019 17:51:38 -0400 Received: from mail-wm1-f46.google.com (mail-wm1-f46.google.com [209.85.128.46]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1E8AB218A4 for ; Thu, 4 Jul 2019 21:51:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1562277097; bh=liSwsfTSayzcp2ggNxY8SpsNtsP/R82WSTHXE3qSnX0=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=vFk7xX3xJgAmnCaWxV2a3RV1XJcV7Z2Ko1uW9/FvO0Js01ECyQDBddt6Jbqt8Z60U 2Iqg0UYlDqYoh+w2U7l6wf2bcfxrFW6Z0BnuDghfNWGtaTiPs1UFO2vXYczJEPeOWE cF74tobslhTiUp9hP2JQwT1gJUOuGDOLyKVG//cA= Received: by mail-wm1-f46.google.com with SMTP id x15so6915860wmj.3 for ; Thu, 04 Jul 2019 14:51:37 -0700 (PDT) X-Gm-Message-State: APjAAAWAnBsH9QGImJa37F07thp5RkXf210rjXVfsh/Yc3BvTk5rRRAe 6D3KLVKQ0TFs2E1BVlNCX6l3AnBZ6wD7bjB0N6/2Vw== X-Google-Smtp-Source: APXvYqyhn+262OX1Iq9+G5Nwv/UfGnqwvHaL/MSjTI7g/C8jTkKJrelpAA1ljt2D9DmHuAZB5zNMm0fDtmjOoUjtzLs= X-Received: by 2002:a1c:60c3:: with SMTP id u186mr111249wmb.79.1562277095718; Thu, 04 Jul 2019 14:51:35 -0700 (PDT) MIME-Version: 1.0 References: <20190704195555.580363209@infradead.org> <20190704200050.363747790@infradead.org> In-Reply-To: <20190704200050.363747790@infradead.org> From: Andy Lutomirski Date: Thu, 4 Jul 2019 14:51:24 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v2 2/7] x86/entry/32: Simplify common_exception To: Peter Zijlstra Cc: Thomas Gleixner , Borislav Petkov , Ingo Molnar , Steven Rostedt , Andrew Lutomirski , Linus Torvalds , "H. Peter Anvin" , Dave Hansen , Juergen Gross , LKML , He Zhe , Joel Fernandes , devel@etsukata.com Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jul 4, 2019 at 1:03 PM Peter Zijlstra wrote: > > By adding one more option to SAVE_ALL we can make use of it in > common_exception and simplify things. This saves duplication later > where page_fault will no longer use common_exception. > Reviewed-by: Andy Lutomirski Although I'm still looking forward to the far-off magical day when we decide we can drop 32-bit support entirely!