Received: by 2002:a05:6a10:2726:0:0:0:0 with SMTP id ib38csp2053238pxb;
        Wed, 30 Mar 2022 15:30:51 -0700 (PDT)
X-Google-Smtp-Source: ABdhPJyZYfWsNz9xSjXF0gdfzbCK2OlErEHgwkY4Yytv5up/FxkAWy0eXQcyQc+pjEQQA3U2O1jK
X-Received: by 2002:a05:6a00:2485:b0:4f7:37cd:d040 with SMTP id c5-20020a056a00248500b004f737cdd040mr35429719pfv.55.1648679451262;
        Wed, 30 Mar 2022 15:30:51 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; t=1648679451; cv=none;
        d=google.com; s=arc-20160816;
        b=MDo/z21vQ95j40Vajiil/vDwtSc6R88kFdGMNeV47rtQDXnos6lw8tmoaZXhZVbO5n
         CpRscKo7jW0m9JllP6R1vkamix59o1ZPCKGSZrDa/oODzFmYhME6yN7pAjLfeYYCxwkN
         PYMohlw6OEzlySeTN/KrDbsLK87jhgq8xdlAjSbDDgG9sI23dWQHeTxER9+RCpYMgcna
         iXagT/kOlPH/YPq4r/Pl97+5bobweUSXqzF/gW3KxE7oslxjXlIpIly2d+tB1raQl/ru
         KYBHIJoRRRaJlqx6knfRI3Bzu8v847x8z0BxXIym2VdvWpj5wa0CW9rEzR1VSI1zyBRL
         K+oA==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=list-id:precedence:in-reply-to:content-disposition:mime-version
         :references:message-id:subject:cc:to:from:date:dkim-signature;
        bh=pb2mFNdYEDesME+0UYGEnxFM4maT9VaGMvxMtxanb3w=;
        b=Hqtui97hnFzZnnBjnUnCkyqZ4uhuf9OG6UaP7qKEmvk4RABxVQJjktyjLxIfUJu+Dj
         GcqLa2/G8TYJwqvuHZhjCOn3k7najmEmhX6zwW/pugraNLFqUUlI9nmNCdciXYhduNfm
         beBY3aYz3o9od/FfJVRGJNX0+GcxBKyUWi7sfOj0b+a4JXkJ3jRiAr00zvhHDXBgTvv9
         pkRWEaxMlfayOrLzEyNQ2qP6ef0zH/zmhQFiVSpVD7aW+kSV6Tt/LtBo75AzcXpj52bs
         NjYrlWZ613e9jUpQfNU1LFPi5SgJTb0P/I0N5waQUisCfhdwNgPhDpqQSt8Tjan5xR+G
         EJAA==
ARC-Authentication-Results: i=1; mx.google.com;
       dkim=pass header.i=@infradead.org header.s=bombadil.20210309 header.b=wI6hqwzd;
       spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20])
        by mx.google.com with ESMTP id v24-20020a17090a521800b001c65a2ac3f0si1156790pjh.42.2022.03.30.15.30.19;
        Wed, 30 Mar 2022 15:30:51 -0700 (PDT)
Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Authentication-Results: mx.google.com;
       dkim=pass header.i=@infradead.org header.s=bombadil.20210309 header.b=wI6hqwzd;
       spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S238024AbiC2Ooh (ORCPT <rfc822;arunks.linux@gmail.com>
        + 99 others); Tue, 29 Mar 2022 10:44:37 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52882 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S238037AbiC2Oog (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Tue, 29 Mar 2022 10:44:36 -0400
Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C8FA675C01;
        Tue, 29 Mar 2022 07:42:53 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
        d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version
        :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To:
        Content-Transfer-Encoding:Content-ID:Content-Description;
        bh=pb2mFNdYEDesME+0UYGEnxFM4maT9VaGMvxMtxanb3w=; b=wI6hqwzdGh6ZRRS+fccpwNIUiy
        an80UXeyBI21rRlhvR75P6Gc+ryH35KYr2/AmIdT+qPuTOT+THiTjOme/s5bTbWC04l22InzKTxOR
        pci0uOYYZWMQ+9T2TdOGsxqYW6ThWYWpcdRVtBHPtNWHJQim7w05T8B+jXk2qxRi7kyyRBWLdAySy
        9KHdZGVVtYu0650w3rCP+6JydvyMPVWYxSYt/kLf4LARAnpOWf4TsqS9T39M+aTil+Bo8KYwH0JN7
        0skZkhL7BwqG7gplarv2P4mtZTda4Fp5lcZA93u44zqGTeqxxnL0w9Cw8Cu3El5z02d3JKeg0lwlU
        KIqxkpzA==;
Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux))
        id 1nZD3Z-00CWVC-UV; Tue, 29 Mar 2022 14:42:49 +0000
Date:   Tue, 29 Mar 2022 07:42:49 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     Jens Axboe <axboe@kernel.dk>
Cc:     Christoph Hellwig <hch@infradead.org>,
        Yu Kuai <yukuai3@huawei.com>,
        andriy.shevchenko@linux.intel.com, john.garry@huawei.com,
        ming.lei@redhat.com, linux-block@vger.kernel.org,
        linux-kernel@vger.kernel.org, yi.zhang@huawei.com
Subject: Re: [PATCH -next RFC 2/6] block: refactor to split bio thoroughly
Message-ID: <YkMa6eIkXqok2QPq@infradead.org>
References: <20220329094048.2107094-1-yukuai3@huawei.com>
 <20220329094048.2107094-3-yukuai3@huawei.com>
 <YkMKgwsZ3K8dRVbX@infradead.org>
 <e46db33f-84a6-6d23-9be2-7429fec71046@kernel.dk>
 <YkMabVKr+7Mg53E1@infradead.org>
 <338207c2-e3cd-abc1-6b8c-f08645ef144a@kernel.dk>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <338207c2-e3cd-abc1-6b8c-f08645ef144a@kernel.dk>
X-SRS-Rewrite: SMTP reverse-path rewritten from <hch@infradead.org> by bombadil.infradead.org. See http://www.infradead.org/rpr.html
X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED,
        DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,
        SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no
        version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Tue, Mar 29, 2022 at 08:41:57AM -0600, Jens Axboe wrote:
> Fixing fairness for wakeups seems useful, however.

Agreed.