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[2620:137:e000::1:20]) by mx.google.com with ESMTP id l4-20020a170906794400b0072b012ed3c9si5641417ejo.887.2022.07.07.07.34.41; Thu, 07 Jul 2022 07:35:17 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-ext4-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=fail header.i=@mit.edu header.s=outgoing header.b=FoHu3kRX; spf=pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=mit.edu Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235435AbiGGOdO (ORCPT + 99 others); Thu, 7 Jul 2022 10:33:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54310 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235185AbiGGOdO (ORCPT ); Thu, 7 Jul 2022 10:33:14 -0400 Received: from outgoing.mit.edu (outgoing-auth-1.mit.edu [18.9.28.11]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 95CE72F3B3 for ; Thu, 7 Jul 2022 07:33:12 -0700 (PDT) Received: from cwcc.thunk.org (pool-173-48-118-63.bstnma.fios.verizon.net [173.48.118.63]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 267EWx2d001638 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 7 Jul 2022 10:33:00 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mit.edu; s=outgoing; t=1657204380; bh=tzjxZhYxR8YeR6sL7Mssq9EcRCN8KJKUPRMmdOg+NFI=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=FoHu3kRX61GDZp0g6k94UmvS3cmaMklF3UVyzpATWlyyMQHvd1334QBLfO0yHUTFH YbYZ1eA4+ke5W+6zDTsCbwZEOmHKUI2Arn0ZnmIlIhVbY5fc7W0LiE7H3MucC+d3Xf RWvMwmMddHL//+kTVKgxQ0ks/DA27Fq/BdFfrV6AOtBvLtiT0IPa/O8TKCAfXLi/+Z gSMJd27vIny8OV7NyP17YIeBdFw4zJE4Dyo9tWwuh+SH0WPUGMrDlJiSkQqwuAXSQ0 TZN2RwpjmLTYT23xy5VfkBEJmtD11b/0jhv/8fToSHdiAXJS8dipAa5P+xcXIfiwzB DCkhNJKIpRQ3A== Received: by cwcc.thunk.org (Postfix, from userid 15806) id E330615C433C; Thu, 7 Jul 2022 10:32:58 -0400 (EDT) Date: Thu, 7 Jul 2022 10:32:58 -0400 From: "Theodore Ts'o" To: Andreas Dilger Cc: Ext4 Developers List , stable@kernel.org Subject: Re: [PATCH 1/2] ext4: update s_overhead_clusters in the superblock during an on-line resize Message-ID: References: <20220629040026.112371-1-tytso@mit.edu> <2F240021-C24A-4F86-ACDA-2FF944F9FE6F@dilger.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2F240021-C24A-4F86-ACDA-2FF944F9FE6F@dilger.ca> X-Spam-Status: No, score=-4.0 required=5.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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: X-Mailing-List: linux-ext4@vger.kernel.org On Mon, Jul 04, 2022 at 02:47:43PM -0600, Andreas Dilger wrote: > On Jun 28, 2022, at 10:00 PM, Theodore Ts'o wrote: > > > > When doing an online resize, the on-disk superblock on-disk wasn't > > updated. This means that when the file system is unmounted and > > remounted, and the on-disk overhead value is non-zero, this would > > result in the results of statfs(2) to be incorrect. > > > > This was partially fixed by Commits 10b01ee92df5 ("ext4: fix overhead > > calculation to account for the reserved gdt blocks"), 85d825dbf489 > > ("ext4: force overhead calculation if the s_overhead_cluster makes no > > sense"), and eb7054212eac ("ext4: update the cached overhead value in > > the superblock"). > > Would these be better referenced by Fixes: labels? This commit doesn't actually _fix_ the above-mentioned commits. They just didn't fix the bug which is addressed by this one. Cheers, - Ted