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=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 2EB53C67863 for ; Thu, 18 Oct 2018 21:13:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C77912098A for ; Thu, 18 Oct 2018 21:13:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="Sie99PMI" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C77912098A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726245AbeJSFQ1 (ORCPT ); Fri, 19 Oct 2018 01:16:27 -0400 Received: from mail-it1-f193.google.com ([209.85.166.193]:38556 "EHLO mail-it1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725139AbeJSFQ1 (ORCPT ); Fri, 19 Oct 2018 01:16:27 -0400 Received: by mail-it1-f193.google.com with SMTP id i76-v6so2163427ita.3 for ; Thu, 18 Oct 2018 14:13:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=d1NjULrA80QMVncOGpJqnDhhqmjqxZbeyIBfFlyhzeo=; b=Sie99PMIckhr0eZoQmdLjjg8wv4P2PFf6L+ZK/8bwKx3sWv54l6Tywezrp846FXxaI adWcuyLDP1itbCIQR8Nj7zs8QjAGjTUsS5xCOYhSAvifn/0/j+eRR82lPpqaDFVxpcaG RAJY/N2C7jlt80sdCS7VjVykVd5Q2BGXP1ZEwyW171gY2w0FX2J2eAtzZ0TUWc7e/qAW ngjQy2sXLHeIh/0P0uQgYuMp7AlXt6yEBoo/udeIRyRc/EypH+2/SBbAA81fPdfNZDOb 809rfofp6bxJNTCVo8QDSy4PqBo3Q120BTmVpyWbEbWFljzb4fUE4cjxKg7Xk7G3meCg N8Sw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=d1NjULrA80QMVncOGpJqnDhhqmjqxZbeyIBfFlyhzeo=; b=Xe+nxuh1PaA04fYOE5a3ahLTxqF+RW1hPeXQ0+y8nMlKi3RtMSHgbAhuYYJzYdK/B1 Up9lfhbFkLAFqxrELSibMhBDOu20v03miCZ5du1NLo3V6gHajZGaU1jEjlY/qNcrQ0VF KkV28WwXihto2aFIM8mGlZpCSGNEaiiPU8dtkA+XmQH8ss+BKXqYQUavJcJcQ0xl7fAo 4OS2VDIxnaSNLyLfX9+w8G0iJgZ72KFSgSyZLurFv6KBU2XNLGwOSE5CMbWoNiPoFN5r LlF1lwgLBKXJy+8sZ4IMrmqWzrf3bO863WuR1EnVJiCKkubcHzR8+EgIILs1yso1M89U Tt5Q== X-Gm-Message-State: ABuFfohl7NeueVQ6ab//HiIh2Sdh1viTxPByCmEQUbVLC9+kMZhYKI53 rwJFaq9cAiA+KWK390CMS4F0AA== X-Google-Smtp-Source: ACcGV63N6YHIJJH4EaaOTEmUiywnQ/5+R1gHGJq/XEL40nyH/CwKYQIHYhwnrZ1EFwdSJWl5uybpjw== X-Received: by 2002:a05:660c:40e:: with SMTP id c14mr1470235itk.119.1539897213842; Thu, 18 Oct 2018 14:13:33 -0700 (PDT) Received: from [192.168.1.56] ([216.160.245.98]) by smtp.gmail.com with ESMTPSA id u132-v6sm788341ita.9.2018.10.18.14.13.31 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 18 Oct 2018 14:13:32 -0700 (PDT) Subject: Re: [PATCH v2] ubd: remove use of blk_rq_map_sg To: Richard Weinberger , linux-um@lists.infradead.org Cc: linux-kernel@vger.kernel.org, anton.ivanov@cambridgegreys.com, hare@suse.de, keescook@chromium.org, bvanassche@acm.org, jdike@addtoit.com, Christoph Hellwig References: <20181018205503.6206-1-richard@nod.at> From: Jens Axboe Message-ID: <421b4db7-b4dc-cd0d-1744-fdfad732d92c@kernel.dk> Date: Thu, 18 Oct 2018 15:13:31 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: <20181018205503.6206-1-richard@nod.at> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/18/18 2:55 PM, Richard Weinberger wrote: > From: Christoph Hellwig > > There is no good reason to create a scatterlist in the ubd driver, > it can just iterate the request directly. Applied, thanks. -- Jens Axboe