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=-4.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 74A2CC433E0 for ; Tue, 12 Jan 2021 21:57:17 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 12EEE208B3 for ; Tue, 12 Jan 2021 21:57:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 12EEE208B3 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:To:Subject:Message-ID:Date:From:In-Reply-To: References:MIME-Version:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=+qnUhgf4ttFNSYH7EmPP61VXDKd5AEJViQFGJ3vym0U=; b=g+arI13U00WzuvcAuWpCJ6m2Y xPVDZ7omPx/qAa+wwklJkZIiO/snUTAkg6JKv/RcGulcWuAAVF2M/BTc66xPfLZLTQkL0SD+mNMtY xweoSQ/8bpTduec+0YeWUkDAQn+aOUhtQ+pHzYFla611++63VbmpusUoCAfO3GMa/3SbUrN4vFIik 48PZ6Oak6wKB2NNT46Sl2lfy3PduoXR6OgIJafJbgmnYW3Wy2FdDVskhsDk8p7iH8SjYLqOoDTfNP /hwYc2WLQmufmpS32Gv+jCkb9Aqc4SmbCw3K3Fe5IH4O237r1BSoI2D4KJMh759QrGbO2GhK3T2dM EiARLrqeQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kzRdi-0002wp-7o; Tue, 12 Jan 2021 21:55:46 +0000 Received: from mail-lf1-x12b.google.com ([2a00:1450:4864:20::12b]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kzRdf-0002vM-0M for linux-arm-kernel@lists.infradead.org; Tue, 12 Jan 2021 21:55:43 +0000 Received: by mail-lf1-x12b.google.com with SMTP id a12so5654662lfl.6 for ; Tue, 12 Jan 2021 13:55:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=391/aBiA2qochS6pTL8d1JkuyejrSRQMbWVrhMmzLt4=; b=ZeUW+1KZ7ytFAsajUvvMyuN2NCPY10FGts1P2BzghpaXEX3swAyDSiTYsoGa3AhWHI Q2Wxu7FmcMBQCZku/xesxcNmU3SNmg44700bqnq+/UIiLR618puVTmfY8J8gk8fDNPj3 Nm434rNrraYgh8Dz+YMyTwPUCEpXjdSKZTtbc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=391/aBiA2qochS6pTL8d1JkuyejrSRQMbWVrhMmzLt4=; b=qR5v5GhvWCranMla9rPLH+uSjANJjqzA5jsTqw+L/RThKwBGHXye7JM74W0KGVu7L+ WY+wZrqiF7kX1WsUYAUCO+eYvyEgw7Z7UXATZCswY3dC7rd3NmgeC05zTD/OC4bk6+RI n5yX1y21E8FE5b7yKZolH8tXoyfiarkUCd9JETPjVbAGdq2skr1g+Egrams3xC8zst/n qr2oNfXgEccELmO+N9nlpQBjkYedPlX2ZXrCVfNl5D/aVbthp8SE++9IDEZ8z20pqiFR kasAw+dc4tCEaJEka9XV6sITRs6oMPNctZq12zw1IEToZ7vK1OMLd7bjvcGRJmR0wL/4 L+uw== X-Gm-Message-State: AOAM533eEN4qzHvP1ZURKyy4XHYl7UfeQTRXA2xF1iQj3XteNjX2LlEc WB7npxydbUojOr5nFx1C4fGcriYPmbJulw== X-Google-Smtp-Source: ABdhPJzg5sNi1wB58TLfuSBvCez5t9qHlzS5e/aKo+Svtei2Ru2Ttk2zyaMW+AnQW7l3SDHBT4O9ew== X-Received: by 2002:ac2:5e2a:: with SMTP id o10mr393899lfg.481.1610488539813; Tue, 12 Jan 2021 13:55:39 -0800 (PST) Received: from mail-lj1-f175.google.com (mail-lj1-f175.google.com. [209.85.208.175]) by smtp.gmail.com with ESMTPSA id a24sm494085ljn.85.2021.01.12.13.55.38 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 12 Jan 2021 13:55:39 -0800 (PST) Received: by mail-lj1-f175.google.com with SMTP id y22so210038ljn.9 for ; Tue, 12 Jan 2021 13:55:38 -0800 (PST) X-Received: by 2002:a2e:6f17:: with SMTP id k23mr525749ljc.411.1610488538323; Tue, 12 Jan 2021 13:55:38 -0800 (PST) MIME-Version: 1.0 References: <20210108171517.5290-1-will@kernel.org> <20210111142402.6euyktmcnpemanf7@box> <20210112214759.GC10434@willie-the-truck> In-Reply-To: <20210112214759.GC10434@willie-the-truck> From: Linus Torvalds Date: Tue, 12 Jan 2021 13:55:22 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v2 0/3] Create 'old' ptes for faultaround mappings on arm64 with hardware access flag To: Will Deacon X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210112_165543_104649_60F92445 X-CRM114-Status: GOOD ( 13.93 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jan Kara , Minchan Kim , Catalin Marinas , Hugh Dickins , Linux Kernel Mailing List , Linux-MM , Vinayak Menon , "Kirill A . Shutemov" , "Kirill A. Shutemov" , Andrew Morton , Android Kernel Team , Linux ARM Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Jan 12, 2021 at 1:48 PM Will Deacon wrote: > > > And then if somebody actually needs to pass in "modified fault state" > > (ie that whole "I'm doing fault-around, so I'll use multiple > > addresses") they'd never modify the address in the fault info, they'd > > just pass the address as an explicit argument (like most cases already > > do - the "change addr or flags in vmf" is actually already _fairly_ > > rare). > > Alright then, I'll take another crack at this for v3 and see how far I > get. But please do keep it as a separate patch, and if it turns out to be ugly for whatever reason, treat it as just a "maybe that would help" suggestion rather than anything stronger.. Linus _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel