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, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,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 F1B07C35DEA for ; Mon, 24 Feb 2020 23:44:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B67E62084E for ; Mon, 24 Feb 2020 23:44:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="kOCIMSAB" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728177AbgBXXoY (ORCPT ); Mon, 24 Feb 2020 18:44:24 -0500 Received: from mout.gmx.net ([212.227.15.19]:55405 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727081AbgBXXoX (ORCPT ); Mon, 24 Feb 2020 18:44:23 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1582587857; bh=uLXe9+miy5P2pZ8Dykfs91dCcObCxsy7CRPIkn0ivhA=; h=X-UI-Sender-Class:Subject:To:References:From:Date:In-Reply-To; b=kOCIMSABE5ac2O0J5bb6kp6RZyrhgCHNbHn3dfWw0OrRSZXEWCXGaOjJNwUrRWYC2 V9/MgT9Z3rWw5bi6xivUQBqKzd5AYFWKg3DlNdcQPYVB7vBuQquKfY+6UKNMjK2Crf o5ZuiFMA/h4odQz/ZvWmsv3gIE+aq0AgkDzwWOp0= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [0.0.0.0] ([149.28.201.231]) by mail.gmx.com (mrgmx005 [212.227.17.184]) with ESMTPSA (Nemesis) id 1MdvqW-1jf9eQ1o3C-00b3rX; Tue, 25 Feb 2020 00:44:17 +0100 Subject: Re: [PATCH v2 2/2] btrfs: qgroup: Remove the unnecesaary spin lock for qgroup_rescan_running|queued To: dsterba@suse.cz, Qu Wenruo , linux-btrfs@vger.kernel.org, Josef Bacik References: <20200207053821.25643-1-wqu@suse.com> <20200207053821.25643-3-wqu@suse.com> <20200224164541.GY2902@twin.jikos.cz> From: Qu Wenruo Autocrypt: addr=quwenruo.btrfs@gmx.com; prefer-encrypt=mutual; keydata= mQENBFnVga8BCACyhFP3ExcTIuB73jDIBA/vSoYcTyysFQzPvez64TUSCv1SgXEByR7fju3o 8RfaWuHCnkkea5luuTZMqfgTXrun2dqNVYDNOV6RIVrc4YuG20yhC1epnV55fJCThqij0MRL 1NxPKXIlEdHvN0Kov3CtWA+R1iNN0RCeVun7rmOrrjBK573aWC5sgP7YsBOLK79H3tmUtz6b 9Imuj0ZyEsa76Xg9PX9Hn2myKj1hfWGS+5og9Va4hrwQC8ipjXik6NKR5GDV+hOZkktU81G5 gkQtGB9jOAYRs86QG/b7PtIlbd3+pppT0gaS+wvwMs8cuNG+Pu6KO1oC4jgdseFLu7NpABEB AAG0IlF1IFdlbnJ1byA8cXV3ZW5ydW8uYnRyZnNAZ214LmNvbT6JAU4EEwEIADgCGwMFCwkI BwIGFQgJCgsCBBYCAwECHgECF4AWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCXZw1oQAKCRDC PZHzoSX+qCY6CACd+mWu3okGwRKXju6bou+7VkqCaHTdyXwWFTsr+/0ly5nUdDtT3yEVggPJ 3VP70wjlrxUjNjFb6iIvGYxiPOrop1NGwGYvQktgRhaIhALG6rPoSSAhGNjwGVRw0km0PlIN D29BTj/lYEk+jVM1YL0QLgAE1AI3krihg/lp/fQT53wLhR8YZIF8ETXbClQG1vJ0cllPuEEv efKxRyiTSjB+PsozSvYWhXsPeJ+KKjFen7ebE5reQTPFzSHctCdPnoR/4jSPlnTlnEvLeqcD ZTuKfQe1gWrPeevQzgCtgBF/WjIOeJs41klnYzC3DymuQlmFubss0jShLOW8eSOOWhLRuQEN BFnVga8BCACqU+th4Esy/c8BnvliFAjAfpzhI1wH76FD1MJPmAhA3DnX5JDORcgaCbPEwhLj 1xlwTgpeT+QfDmGJ5B5BlrrQFZVE1fChEjiJvyiSAO4yQPkrPVYTI7Xj34FnscPj/IrRUUka 68MlHxPtFnAHr25VIuOS41lmYKYNwPNLRz9Ik6DmeTG3WJO2BQRNvXA0pXrJH1fNGSsRb+pK EKHKtL1803x71zQxCwLh+zLP1iXHVM5j8gX9zqupigQR/Cel2XPS44zWcDW8r7B0q1eW4Jrv 0x19p4P923voqn+joIAostyNTUjCeSrUdKth9jcdlam9X2DziA/DHDFfS5eq4fEvABEBAAGJ ATwEGAEIACYCGwwWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCXZw1rgUJCWpOfwAKCRDCPZHz oSX+qFcEB/95cs8cM1OQdE/GgOfCGxwgckMeWyzOR7bkAWW0lDVp2hpgJuxBW/gyfmtBnUai fnggx3EE3ev8HTysZU9q0h+TJwwJKGv6sUc8qcTGFDtavnnl+r6xDUY7A6GvXEsSoCEEynby 72byGeSovfq/4AWGNPBG1L61Exl+gbqfvbECP3ziXnob009+z9I4qXodHSYINfAkZkA523JG ap12LndJeLk3gfWNZfXEWyGnuciRGbqESkhIRav8ootsCIops/SqXm0/k+Kcl4gGUO/iD/T5 oagaDh0QtOd8RWSMwLxwn8uIhpH84Q4X1LadJ5NCgGa6xPP5qqRuiC+9gZqbq4Nj Message-ID: Date: Tue, 25 Feb 2020 07:44:12 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <20200224164541.GY2902@twin.jikos.cz> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="ROSwosdnYXooRgOKhYWBlvaZ4PdHGRB4v" X-Provags-ID: V03:K1:V1N3VSqcX9ImAhDmueIAHuiWt5oWnYQxBsMbF3vgu1RJzmXXN6X Xb7hedYyIX89cM3FYAFM9p/cJB8N96lIvlaedSFfgZVb1gJuXtV76KPk43WtZjhsddLaqSt hyj3e0wJuzTLvOwVq2HBcjxqaLL+vAYGeTxkAIa6/CEyZqzaINnCMXZlZ+piAMY+v0EsyCK wXIzLNUAh4pIr0JlR3STg== X-UI-Out-Filterresults: notjunk:1;V03:K0:7kYLE4FSEVs=:ymyK4yWB/XG38R0WKCvT9H MN4s6Pro+g3Lo8Cc2anNlYjpW4LaZY/9gBZjgqHgCaj5BIuYCqjYq6o3RO0jlQxWOaKZIcpRW mY9B9k0RFEnluVfqxNoZZARd+AnxmmulvnSolyt6cAeiRryOwgCjpY9uhsMdNEKZffPk9q0YJ gxxpYLzVDywVligvAFv/uPSCRhNv4c0FIaS0iqZNSJGxwSokwk/hiB3RqzweF9CLTJCjkqGi8 suIbcpAqBm3GFNKwFv93yPXPX8/e02+OMxUZaOFkW2iDuHUwc6PICs2wJibXbCH2qdsJCwvLt GHWKJlIbUhs+YH97W9uZJq4Z3+DDt0qJ4GGihzFk6uKMlfaedbz/Q1zK7TZ00OYD9gc0PjPKE Vgd2ESaoQiUdnj3l7AVDnj639gUZDSdT7ZnZsS9WOVCWTRlh/jwnx0DUaxrrkbIG8nrv0dL9x WOfpJ+ollxnCQJYMuOJZRJ0MTJL9o09n8x9NX+sRAS7k/88XaWu78sX9OKzvhm9D8nOM6DZno VvkaPjDXb1rYH3sdRDxKBw2OUYcToZjk9PPI7UOk6UE/plrQOilLphME2Wpsp1GbCtmUyob9e Msi9Io0gybqpK8vhKclDqqX94cGru+aLB0jcEgx+yKdh6WreEWnTlF5/bETo8IhNxBcS/9K8+ C7194lgrgjgCQm83O8hyTfwkvJ4vAPVk9h20rUJa1iW0jAc1ejSj5LnlwZrgxwIG1VtPXBchL kHkOEDO0xncvpfb098dZE9D9bzD3FV8Lxwdv6JCk/RmwgC6nTHPmDYLOLEdR8COFmg4WVi/Bf gm49Qxy4vzgULJlpQsoRhVSoDJnidxEFmHBxtZJ5ITTaDWCEui/WqaC2m84WHSXrZgZXdBjQ2 QBDcA+afFxZziQm0aflf5nTrxUvZM8JeNb+9vhHfjyKUKphAh5u9eQIQjBjm5ycCy0oyu9J60 b8tcrdByH2HrdpOaENZbO+ohxOyZq7SCnCfN1G6QVsCyK6ivngQp5b7lVy7a9I7dpoywSf/xO c76Fp7hpdxMYE7MqWBzFFsYy+0LTs4l/ILQzPdc6Wl4d2Nx7HvoFdF+fGJsLJDiMpM1xu3vNz a1AI7jM0dT99ACQ9+QZgSuDAHUhV8bY59T+KDeRxIt7VWqfE4RLsXCZhJx0nJOXtGdlBLeipK 13vQgu5+VKvemMNvt/tOLaYe7NGYyucTEs6LIvDl6Rk34LEqN3RqSOuXv68hduX3h+z/6OUXE r1LqiAng+ygXsIarK Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --ROSwosdnYXooRgOKhYWBlvaZ4PdHGRB4v Content-Type: multipart/mixed; boundary="Adnk9n5Pj1XunbIh9WTjtd83RPTPIKPYj" --Adnk9n5Pj1XunbIh9WTjtd83RPTPIKPYj Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 2020/2/25 =E4=B8=8A=E5=8D=8812:45, David Sterba wrote: > On Fri, Feb 07, 2020 at 01:38:21PM +0800, Qu Wenruo wrote: >> Those two members are all protected by >> btrfs_fs_info::qgroup_rescan_lock, thus no need for the extra spinlock= =2E >=20 > Two members refers to btrfs_fs_info::qgroup_rescan_lock and what else? > Byt the subject it's something 'queued' but I can't find what it's > referring to. >=20 My bad, with the latest version, there is only qgroup_rescan_running, no qgroup_rescan_queued. Just one member now. Do I need to resend the patch with commit message updated? Thanks, Qu --Adnk9n5Pj1XunbIh9WTjtd83RPTPIKPYj-- --ROSwosdnYXooRgOKhYWBlvaZ4PdHGRB4v Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEELd9y5aWlW6idqkLhwj2R86El/qgFAl5UX8wACgkQwj2R86El /qh9mAf/U1VUpBd8xKtGX9UZmMQ8Fh+TlVvQsg2xJdgk+YmXcFw3A/1zjb3qGzpI FubD1Y7DI6u1ZxgkpAVmRb22m1h8M7HacYzr4SSTkUzgd6Urcc/Rjb54rJCddWuv WNz5yhfCHhgfqBc8v04PCArXMtT29Il4q/2EpG949demnC69vkA79NQU7eydzIMI tqhaqZTSI3zV0oUaHPAFTH1tsNk81gSkNhL5kZlo4CQ5hGojJuBH8oxTlb4wl7Q7 hiGfkQV9JGHZQyIB3e1G0FFeRE8HQQDUFAkZUwzVW6gelS9/JJ/aX1YraI1hMINU 0syKVgugtbd6sNbdtSwe/kUh6BLBmg== =RjfZ -----END PGP SIGNATURE----- --ROSwosdnYXooRgOKhYWBlvaZ4PdHGRB4v--