From patchwork Fri May 1 13:22:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 226495 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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 ACB14C47254 for ; Fri, 1 May 2020 13:58:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8350E2051A for ; Fri, 1 May 2020 13:58:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588341508; bh=RnHZ55ZQd+oFxIjGZK85Q+Q5EPPSaa4vig9BLZFgBww=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=SQ2SST7wla+0VM1ViqmrozKmw+1if4u4HC9MefHPA20hltfvTpbKpjIyTBZtMOxb9 ewbjLkS2sJUV14qS+OaPn6NR1zrXWaFhRQCut64xtI9msZFQqQQuIjJKLcBd5uH5rA VGAl3L3O3HU9CYby3T13rz5On+gEh1h5//u22QWU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729376AbgEANab (ORCPT ); Fri, 1 May 2020 09:30:31 -0400 Received: from mail.kernel.org ([198.145.29.99]:54584 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729956AbgEANaa (ORCPT ); Fri, 1 May 2020 09:30:30 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 783A020757; Fri, 1 May 2020 13:30:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588339829; bh=RnHZ55ZQd+oFxIjGZK85Q+Q5EPPSaa4vig9BLZFgBww=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VUlWhGjRoVjClL4HtIUbqvjFdEzJ9om1aYx4C2aSLqxVj4loO1Dvim0uWaRPXibpQ 4j/ofyC+sNNeMVl7PKsoMQT9Jg2761Cb5Yqn5XqAZ1ENUENlIXfIRPEOQ53pd8lyNW A5N3oqfEl67UHFebfWdm7hro4UDRaNChQo4a/4j4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Rue , Theodore Tso , Naresh Kamboju , Ashwin H Subject: [PATCH 4.9 77/80] ext4: dont perform block validity checks on the journal inode Date: Fri, 1 May 2020 15:22:11 +0200 Message-Id: <20200501131537.255299635@linuxfoundation.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200501131513.810761598@linuxfoundation.org> References: <20200501131513.810761598@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Theodore Ts'o commit 0a944e8a6c66ca04c7afbaa17e22bf208a8b37f0 upstream. Since the journal inode is already checked when we added it to the block validity's system zone, if we check it again, we'll just trigger a failure. This was causing failures like this: [ 53.897001] EXT4-fs error (device sda): ext4_find_extent:909: inode #8: comm jbd2/sda-8: pblk 121667583 bad header/extent: invalid extent entries - magic f30a, entries 8, max 340(340), depth 0(0) [ 53.931430] jbd2_journal_bmap: journal block not found at offset 49 on sda-8 [ 53.938480] Aborting journal on device sda-8. ... but only if the system was under enough memory pressure that logical->physical mapping for the journal inode gets pushed out of the extent cache. (This is why it wasn't noticed earlier.) Fixes: 345c0dbf3a30 ("ext4: protect journal inode's blocks using block_validity") Reported-by: Dan Rue Signed-off-by: Theodore Ts'o Tested-by: Naresh Kamboju Signed-off-by: Ashwin H Signed-off-by: Greg Kroah-Hartman --- fs/ext4/extents.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -554,10 +554,14 @@ __read_extent_tree_block(const char *fun } if (buffer_verified(bh) && !(flags & EXT4_EX_FORCE_CACHE)) return bh; - err = __ext4_ext_check(function, line, inode, - ext_block_hdr(bh), depth, pblk); - if (err) - goto errout; + if (!ext4_has_feature_journal(inode->i_sb) || + (inode->i_ino != + le32_to_cpu(EXT4_SB(inode->i_sb)->s_es->s_journal_inum))) { + err = __ext4_ext_check(function, line, inode, + ext_block_hdr(bh), depth, pblk); + if (err) + goto errout; + } set_buffer_verified(bh); /* * If this is a leaf block, cache all of its entries