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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, 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 87306C388F7 for ; Tue, 3 Nov 2020 21:16:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3BA65206A5 for ; Tue, 3 Nov 2020 21:16:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604438203; bh=JA03hcWKzQTxb8EPGJsp5b8cQyeyTFqF6SReLiFYQz0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=AEKEgWkUjjUxFXSOFnYEJO4+1nvfiKmalGGjjJh7Zq+rrXa2cangkeRh9PwBIwYtn 1IKktq3xbyzs0Va5MHgBEI1G/4To6Uz0JAHwSMVwDiIB7JFe8YMveRJrQlinMyZIsh pw52iylhyFEbF+ktiwzokJDvI6ULRys0GOFFpQoc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388493AbgKCVQg (ORCPT ); Tue, 3 Nov 2020 16:16:36 -0500 Received: from mail.kernel.org ([198.145.29.99]:52366 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388491AbgKCVLB (ORCPT ); Tue, 3 Nov 2020 16:11:01 -0500 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (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 4C2E7206B5; Tue, 3 Nov 2020 21:11:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604437860; bh=JA03hcWKzQTxb8EPGJsp5b8cQyeyTFqF6SReLiFYQz0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=yKZYRsCCnX65wjG7faADUO/37h77P2z/UeuZ3cKvls3sFdyVuQmF6XbiP84T5cmhC BnahdUd6YQmZ3/usEzNFnWFsySs8B/qY6bPHN3Nl0/fk9wYac0A6ApB76Jtrp0RNi2 BjsGi7Q7A9zarSPtzGSBrcp1xkOhUu1dH+1Pclc8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Darrick J. Wong" , Chandan Babu R , Sasha Levin Subject: [PATCH 4.14 024/125] xfs: fix realtime bitmap/summary file truncation when growing rt volume Date: Tue, 3 Nov 2020 21:36:41 +0100 Message-Id: <20201103203200.234992224@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201103203156.372184213@linuxfoundation.org> References: <20201103203156.372184213@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Darrick J. Wong [ Upstream commit f4c32e87de7d66074d5612567c5eac7325024428 ] The realtime bitmap and summary files are regular files that are hidden away from the directory tree. Since they're regular files, inode inactivation will try to purge what it thinks are speculative preallocations beyond the incore size of the file. Unfortunately, xfs_growfs_rt forgets to update the incore size when it resizes the inodes, with the result that inactivating the rt inodes at unmount time will cause their contents to be truncated. Fix this by updating the incore size when we change the ondisk size as part of updating the superblock. Note that we don't do this when we're allocating blocks to the rt inodes because we actually want those blocks to get purged if the growfs fails. This fixes corruption complaints from the online rtsummary checker when running xfs/233. Since that test requires rmap, one can also trigger this by growing an rt volume, cycling the mount, and creating rt files. Signed-off-by: Darrick J. Wong Reviewed-by: Chandan Babu R Signed-off-by: Sasha Levin --- fs/xfs/xfs_rtalloc.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index 7d3b56872e563..f1cf832837104 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -1014,10 +1014,13 @@ xfs_growfs_rt( xfs_ilock(mp->m_rbmip, XFS_ILOCK_EXCL); xfs_trans_ijoin(tp, mp->m_rbmip, XFS_ILOCK_EXCL); /* - * Update the bitmap inode's size. + * Update the bitmap inode's size ondisk and incore. We need + * to update the incore size so that inode inactivation won't + * punch what it thinks are "posteof" blocks. */ mp->m_rbmip->i_d.di_size = nsbp->sb_rbmblocks * nsbp->sb_blocksize; + i_size_write(VFS_I(mp->m_rbmip), mp->m_rbmip->i_d.di_size); xfs_trans_log_inode(tp, mp->m_rbmip, XFS_ILOG_CORE); /* * Get the summary inode into the transaction. @@ -1025,9 +1028,12 @@ xfs_growfs_rt( xfs_ilock(mp->m_rsumip, XFS_ILOCK_EXCL); xfs_trans_ijoin(tp, mp->m_rsumip, XFS_ILOCK_EXCL); /* - * Update the summary inode's size. + * Update the summary inode's size. We need to update the + * incore size so that inode inactivation won't punch what it + * thinks are "posteof" blocks. */ mp->m_rsumip->i_d.di_size = nmp->m_rsumsize; + i_size_write(VFS_I(mp->m_rsumip), mp->m_rsumip->i_d.di_size); xfs_trans_log_inode(tp, mp->m_rsumip, XFS_ILOG_CORE); /* * Copy summary data from old to new sizes. -- 2.27.0