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=-2.2 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 1978DC3A59E for ; Mon, 2 Sep 2019 21:47:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D5E2E22CF7 for ; Mon, 2 Sep 2019 21:47:04 +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="j/KvpmYK" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727604AbfIBVrE (ORCPT ); Mon, 2 Sep 2019 17:47:04 -0400 Received: from mail-pl1-f193.google.com ([209.85.214.193]:43565 "EHLO mail-pl1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726933AbfIBVrE (ORCPT ); Mon, 2 Sep 2019 17:47:04 -0400 Received: by mail-pl1-f193.google.com with SMTP id 4so6982549pld.10 for ; Mon, 02 Sep 2019 14:47:03 -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=bE3CAGhnJZegvIyfQXiX7dFDWRKDXbLDv++b0LQi4ZA=; b=j/KvpmYKp5WcE2QOK0RAlwqt+IgtxvzMAxVB8SmfSj0/pOnQV6c2CsE3AhMxEGZ7LO QHoUNeRRlAwj6j2iwtZMqBLNwFsXOT9docsS2b86DNBZRE7vNX7MG+axOrC0MA0QnjMK luQSr0KbW9tQ2SEmb7nPpFCRhkC0RIOVXlh6YM9O9Sg5g4VbVYdjagxeLsMMSHm1rQ8e aMJlnnuzI09Dj53mES7Bzt4WXwZ7m8nyMMU4IWG3o+BPiGpZheP82fcUcJgEI2yw7ZfR eqQhoJTb5btqwS+2uAS9Etps6GRDO9Glz3AxMp0Z2mFP73H+Vhjy02G6cpdk6gJVBPny pEbA== 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=bE3CAGhnJZegvIyfQXiX7dFDWRKDXbLDv++b0LQi4ZA=; b=UEzQu9sv4L/Nc3m+3O9N1c0+i3NyqTE4mpQmYjtP2S/7pkY35ea2Psi6d6zzYQMMSa 8LNCIy/l3lQDZ+PSVP2zuzim/ZEmtAYd3nZ8tYgwiUy+7HBuObCt1a3Dcn98fggNAc8Z urwj6iVnBRwjt91mJvhuMtco34vHmC9Fz3fHr7GhL+WiMk4FUt6ttYn/KaYZ44Dp31PC uKuUrjpmJwSPs8lOcdpWhrpQau8D6pay8CHx8rRQyq14/84crFEFxd8K7w1wXh0dz4A0 mp4cbnFxET6Xrpa3LkDwmp4NVUnfhEK02BB2ALF2MvLj7uVK7g8MzGvYGwxQPWT/hGta lj8A== X-Gm-Message-State: APjAAAXoBYgjdfxCwaG80COdpcYIi7p7xhKz1rMqnRW8In9ZSMz6bg+b 2bmVvwrH8OUhVp8+5pB5OfwKsg== X-Google-Smtp-Source: APXvYqyJzfQKPBEQy19FPz3Lq5G4NPwWwbdV/9eJxkhq7nV/UN/iSGM54S9/O1hVayoRRjcFiYFOTA== X-Received: by 2002:a17:902:b48c:: with SMTP id y12mr5329126plr.92.1567460823386; Mon, 02 Sep 2019 14:47:03 -0700 (PDT) Received: from [192.168.1.188] (66.29.164.166.static.utbb.net. [66.29.164.166]) by smtp.gmail.com with ESMTPSA id 71sm20770525pfw.157.2019.09.02.14.47.01 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 02 Sep 2019 14:47:02 -0700 (PDT) Subject: Re: [PATCH v10 3/4] block: add a helper function to merge the segments To: Yoshihiro Shimoda , ulf.hansson@linaro.org, hch@lst.de, m.szyprowski@samsung.com, robin.murphy@arm.com, joro@8bytes.org Cc: wsa+renesas@sang-engineering.com, linux-mmc@vger.kernel.org, iommu@lists.linux-foundation.org, linux-block@vger.kernel.org, linux-renesas-soc@vger.kernel.org References: <1566995743-5614-1-git-send-email-yoshihiro.shimoda.uh@renesas.com> <1566995743-5614-4-git-send-email-yoshihiro.shimoda.uh@renesas.com> From: Jens Axboe Message-ID: Date: Mon, 2 Sep 2019 15:47:00 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <1566995743-5614-4-git-send-email-yoshihiro.shimoda.uh@renesas.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On 8/28/19 6:35 AM, Yoshihiro Shimoda wrote: > This patch adds a helper function whether a queue can merge > the segments by the DMA MAP layer (e.g. via IOMMU). Reviewed-by: Jens Axboe -- Jens Axboe