From patchwork Mon Jan 18 06:20:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chandan Babu R X-Patchwork-Id: 12026631 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 08C74C433E0 for ; Mon, 18 Jan 2021 06:23:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C53A3227BF for ; Mon, 18 Jan 2021 06:23:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732390AbhARGWu (ORCPT ); Mon, 18 Jan 2021 01:22:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33992 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732203AbhARGWU (ORCPT ); Mon, 18 Jan 2021 01:22:20 -0500 Received: from mail-pg1-x529.google.com (mail-pg1-x529.google.com [IPv6:2607:f8b0:4864:20::529]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 008DAC061793; Sun, 17 Jan 2021 22:21:06 -0800 (PST) Received: by mail-pg1-x529.google.com with SMTP id i7so10304031pgc.8; Sun, 17 Jan 2021 22:21:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=MIvnJ0VsDhNnrp8Hs5gLG61IFY55F0VThKgOo2dcDHI=; b=a3OxbXxQSDDnBU5kEuXvEzm6TGCO7E2XuFasNdiIibXP+iIekCCHwv7Jh1uQULOWXU 87e15c4pDuZKdi13TWWcNWE4VOvvE3kVZwvVuYvT8CfbPPEqiv0e8q6Hr/Y6hWA8Z/74 IXlDEfJgya2g5R24tEZdMgMICgu98emxQSWGSrCwGCa4taMYGcKAQ/46Y0tzubA4Lc2h SFnA7hGuJxtKAknCz/MeWUQtDPwTInKc5IowXxkz+0dJJVc+00rkGXUC3qKjG+4YXG5v yemrmyl3rGPqB4wIPiCnwcN31R/6/J2cDUT4pp+7Z3kovS7VYZA6t50i0oW3agq4C09k WwJA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=MIvnJ0VsDhNnrp8Hs5gLG61IFY55F0VThKgOo2dcDHI=; b=HtzrlZ/kNrtoAoNYwQDQFEajn/cdYXPvAt8cudvEktLLBmPQj8MNcEoJuu4GbkO+tg nXkfbmxq6dYu8Br3g00r4L2oa18g6jyqvxoy9JqrnAb8r3TVi9f0uTRb3G82CfE0gaBr mkKOxqIgtOK4GfBrLciBavmB75rnqy7Vsl3rzTX7G3pfhIpZ/sP1xK9LAxqIwqHCZ/+9 3VaCwTdwFPNreGq7u2WGmKoTOUZXmlz8bfp/aJcAutbfLeGFoi9pQSYNr/gNV5PQ1VHx kFv7PAhk8/goNOxRX6ulj0jxWhIFy0+WLhoqErl6J/idcVSUjffSw6MBRgZl8nC0HZ3J zz5g== X-Gm-Message-State: AOAM532PLk0GGL4G8YWo3ABhhChVnyIst9dq8ww6WfxlFluV5ifD+lP7 w7BdMGmcYB2Vq/D4SrJ1nnONVit/jQ4= X-Google-Smtp-Source: ABdhPJzuQjUwpL//jMBAmj96Z7oGNxLReANFeOXllzPK//EiPgKBchwQ/GGMVDl9mi9b7pmSUjStRQ== X-Received: by 2002:a63:585a:: with SMTP id i26mr24425570pgm.330.1610950866463; Sun, 17 Jan 2021 22:21:06 -0800 (PST) Received: from localhost.localdomain ([122.179.96.31]) by smtp.gmail.com with ESMTPSA id t1sm14608423pfq.154.2021.01.17.22.21.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 17 Jan 2021 22:21:06 -0800 (PST) From: Chandan Babu R To: fstests@vger.kernel.org Cc: Chandan Babu R , linux-xfs@vger.kernel.org, darrick.wong@oracle.com, djwong@kernel.org Subject: [PATCH V4 10/11] xfs: Check for extent overflow when swapping extents Date: Mon, 18 Jan 2021 11:50:21 +0530 Message-Id: <20210118062022.15069-11-chandanrlinux@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210118062022.15069-1-chandanrlinux@gmail.com> References: <20210118062022.15069-1-chandanrlinux@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org This test verifies that XFS does not cause inode fork's extent count to overflow when swapping forks across two files. Signed-off-by: Chandan Babu R Reviewed-by: Darrick J. Wong --- tests/xfs/530 | 109 ++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/530.out | 13 ++++++ tests/xfs/group | 1 + 3 files changed, 123 insertions(+) create mode 100755 tests/xfs/530 create mode 100644 tests/xfs/530.out diff --git a/tests/xfs/530 b/tests/xfs/530 new file mode 100755 index 00000000..0986d8bf --- /dev/null +++ b/tests/xfs/530 @@ -0,0 +1,109 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2020 Chandan Babu R. All Rights Reserved. +# +# FS QA Test 530 +# +# Verify that XFS does not cause inode fork's extent count to overflow when +# swapping forks between files +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/inject + +# remove previous $seqres.full before test +rm -f $seqres.full + +# real QA test starts here + +_supported_fs xfs +_require_scratch +_require_xfs_debug +_require_xfs_scratch_rmapbt +_require_xfs_io_command "fcollapse" +_require_xfs_io_command "swapext" +_require_xfs_io_error_injection "reduce_max_iextents" + +echo "* Swap extent forks" + +echo "Format and mount fs" +_scratch_mkfs >> $seqres.full +_scratch_mount >> $seqres.full + +bsize=$(_get_block_size $SCRATCH_MNT) + +srcfile=${SCRATCH_MNT}/srcfile +donorfile=${SCRATCH_MNT}/donorfile + +echo "Create \$donorfile having an extent of length 67 blocks" +$XFS_IO_PROG -f -s -c "pwrite -b $((17 * bsize)) 0 $((17 * bsize))" $donorfile \ + >> $seqres.full + +# After the for loop the donor file will have the following extent layout +# | 0-4 | 5 | 6 | 7 | 8 | 9 | 10 | +echo "Fragment \$donorfile" +for i in $(seq 5 10); do + start_offset=$((i * bsize)) + $XFS_IO_PROG -f -c "fcollapse $start_offset $bsize" $donorfile >> $seqres.full +done + +echo "Create \$srcfile having an extent of length 18 blocks" +$XFS_IO_PROG -f -s -c "pwrite -b $((18 * bsize)) 0 $((18 * bsize))" $srcfile \ + >> $seqres.full + +echo "Fragment \$srcfile" +# After the for loop the src file will have the following extent layout +# | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7-10 | +for i in $(seq 1 7); do + start_offset=$((i * bsize)) + $XFS_IO_PROG -f -c "fcollapse $start_offset $bsize" $srcfile >> $seqres.full +done + +echo "Collect \$donorfile's extent count" +donor_nr_exts=$($XFS_IO_PROG -c 'stat' $donorfile | grep nextents) +donor_nr_exts=${donor_nr_exts##fsxattr.nextents = } + +echo "Collect \$srcfile's extent count" +src_nr_exts=$($XFS_IO_PROG -c 'stat' $srcfile | grep nextents) +src_nr_exts=${src_nr_exts##fsxattr.nextents = } + +echo "Inject reduce_max_iextents error tag" +_scratch_inject_error reduce_max_iextents 1 + +echo "Swap \$srcfile's and \$donorfile's extent forks" +$XFS_IO_PROG -f -c "swapext $donorfile" $srcfile >> $seqres.full 2>&1 + +echo "Check for \$donorfile's extent count overflow" +nextents=$($XFS_IO_PROG -c 'stat' $donorfile | grep nextents) +nextents=${nextents##fsxattr.nextents = } + +if (( $nextents == $src_nr_exts )); then + echo "\$donorfile: Extent count overflow check failed" +fi + +echo "Check for \$srcfile's extent count overflow" +nextents=$($XFS_IO_PROG -c 'stat' $srcfile | grep nextents) +nextents=${nextents##fsxattr.nextents = } + +if (( $nextents == $donor_nr_exts )); then + echo "\$srcfile: Extent count overflow check failed" +fi + +# success, all done +status=0 +exit diff --git a/tests/xfs/530.out b/tests/xfs/530.out new file mode 100644 index 00000000..9f55608b --- /dev/null +++ b/tests/xfs/530.out @@ -0,0 +1,13 @@ +QA output created by 530 +* Swap extent forks +Format and mount fs +Create $donorfile having an extent of length 67 blocks +Fragment $donorfile +Create $srcfile having an extent of length 18 blocks +Fragment $srcfile +Collect $donorfile's extent count +Collect $srcfile's extent count +Inject reduce_max_iextents error tag +Swap $srcfile's and $donorfile's extent forks +Check for $donorfile's extent count overflow +Check for $srcfile's extent count overflow diff --git a/tests/xfs/group b/tests/xfs/group index bc3958b3..81a15582 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -527,3 +527,4 @@ 527 auto quick 528 auto quick reflink 529 auto quick reflink +530 auto quick