From patchwork Tue Jan 12 07:40:23 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: 12012583 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 13EAFC4332B for ; Tue, 12 Jan 2021 07:42:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D26FB22DFA for ; Tue, 12 Jan 2021 07:42:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728520AbhALHmM (ORCPT ); Tue, 12 Jan 2021 02:42:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33816 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387522AbhALHmL (ORCPT ); Tue, 12 Jan 2021 02:42:11 -0500 Received: from mail-pl1-x634.google.com (mail-pl1-x634.google.com [IPv6:2607:f8b0:4864:20::634]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C4B73C0617A6; Mon, 11 Jan 2021 23:41:04 -0800 (PST) Received: by mail-pl1-x634.google.com with SMTP id j1so963952pld.3; Mon, 11 Jan 2021 23:41:04 -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=vfcHfUVSSoz92RXngnOC7EatAp4YfY5+S3rf8SFIR2A=; b=iU4vZ5sfkA+BbSFuJKI53TCJHJOnn5Vjmc1/qQvEMjeKIRawhqslQ3uHS2hREjUqNB XBVShY9qkKlodUpPFdWk3ta8KSe7g15A1qjdXel/+zbcYusasOnjmsR+E5vHE1WRytiX +BRpTFsRuvGBcBKtN7CNjylJmZ2wZzmSdb1J5fyVObSbPuhgOIZbaHZ55yqLE8x4TIVh 38OrbO8yMSOKd/gju0+qUfqQ41J5tYMFY3HGxEtn8YpJHKq0Upw1UvlEnjWHhyeMFMBA mUixGAw573nuZdki2t/20BGuhMDEFSXTNu+jCyUc26Msv9JVUjeL9Ce4clA8IRUr0BZq ceoA== 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=vfcHfUVSSoz92RXngnOC7EatAp4YfY5+S3rf8SFIR2A=; b=awNBviaplwnlAkhYEpFc/k3aUaR89VohbXexHyhmKQGKkQnGRsGxqPxPe73mvbj69E S6NZbYrJnR3fwAjI/tKkz36K6IRYP4JaM8nRwWPNYiBLqlopeKGbBQmRWepQ7Dwddl1f rhbpZXLGUqe7DTPAcJNp18hZ8KmaeecGHsqjuZlqpf0nblCj3mUQYdLUTOC/gBBhhbvS xVDDRe/poJkzLWLcyWQEzRtsTrlLvavzbh0kOq19qAPj7tZaBIRMOufbp2v76UXBpbmn hcaIYSVSrFJFRYuVzEgcQhoZr+qh4P1NsLAl3NUwboKZl1cEJ+jSlbDh3KUmf7gXCan/ B0Aw== X-Gm-Message-State: AOAM530mZEP/MntL4Nb1xmmArPIkc5aYhSab2gHD9VVbujXdH6qttqLS 2iXXQXyZDaedjiydmzcFfD5bKFBUtPw= X-Google-Smtp-Source: ABdhPJx9n90fsIe9F2vkkqBJun7C0dvuoGv7ZVjuAbDjMchLY4mCz8dmEtq8VLjhvMfpFJZKr16cog== X-Received: by 2002:a17:90a:cb0b:: with SMTP id z11mr3148560pjt.101.1610437264230; Mon, 11 Jan 2021 23:41:04 -0800 (PST) Received: from localhost.localdomain ([122.171.39.105]) by smtp.gmail.com with ESMTPSA id mj5sm1962340pjb.20.2021.01.11.23.41.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Jan 2021 23:41:03 -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 V3 07/11] xfs: Check for extent overflow when writing to unwritten extent Date: Tue, 12 Jan 2021 13:10:23 +0530 Message-Id: <20210112074027.10311-8-chandanrlinux@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210112074027.10311-1-chandanrlinux@gmail.com> References: <20210112074027.10311-1-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 writing to an unwritten extent. Signed-off-by: Chandan Babu R --- tests/xfs/527 | 89 +++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/527.out | 11 ++++++ tests/xfs/group | 1 + 3 files changed, 101 insertions(+) create mode 100755 tests/xfs/527 create mode 100644 tests/xfs/527.out diff --git a/tests/xfs/527 b/tests/xfs/527 new file mode 100755 index 00000000..cd67bce4 --- /dev/null +++ b/tests/xfs/527 @@ -0,0 +1,89 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2020 Chandan Babu R. All Rights Reserved. +# +# FS QA Test 527 +# +# Verify that XFS does not cause inode fork's extent count to overflow when +# writing to an unwritten extent. +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_io_command "falloc" +_require_xfs_io_error_injection "reduce_max_iextents" + +echo "Format and mount fs" +_scratch_mkfs_sized $((1024 * 1024 * 1024)) >> $seqres.full +_scratch_mount >> $seqres.full + +bsize=$(_get_file_block_size $SCRATCH_MNT) + +testfile=${SCRATCH_MNT}/testfile + +echo "Inject reduce_max_iextents error tag" +_scratch_inject_error reduce_max_iextents 1 + +nr_blks=15 + +for io in Buffered Direct; do + echo "* $io write to unwritten extent" + + echo "Fallocate $nr_blks blocks" + $XFS_IO_PROG -f -c "falloc 0 $((nr_blks * bsize))" $testfile >> $seqres.full + + if [[ $io == "Buffered" ]]; then + xfs_io_flag="" + else + xfs_io_flag="-d" + fi + + echo "$io write to every other block of fallocated space" + for i in $(seq 1 2 $((nr_blks - 1))); do + $XFS_IO_PROG -f -s $xfs_io_flag -c "pwrite $((i * bsize)) $bsize" \ + $testfile >> $seqres.full 2>&1 + [[ $? != 0 ]] && break + done + + echo "Verify \$testfile's extent count" + nextents=$($XFS_IO_PROG -c 'stat' $testfile | grep nextents) + nextents=${nextents##fsxattr.nextents = } + if (( $nextents > 10 )); then + echo "Extent count overflow check failed: nextents = $nextents" + exit 1 + fi + + rm $testfile +done + +# super_block->s_wb_err will have a newer seq value when compared to "/"'s +# file->f_sb_err. Consume it here so that xfs_scrub can does not error out. +$XFS_IO_PROG -c syncfs $SCRATCH_MNT >> $seqres.full 2>&1 + +# success, all done +status=0 +exit diff --git a/tests/xfs/527.out b/tests/xfs/527.out new file mode 100644 index 00000000..3597ad92 --- /dev/null +++ b/tests/xfs/527.out @@ -0,0 +1,11 @@ +QA output created by 527 +Format and mount fs +Inject reduce_max_iextents error tag +* Buffered write to unwritten extent +Fallocate 15 blocks +Buffered write to every other block of fallocated space +Verify $testfile's extent count +* Direct write to unwritten extent +Fallocate 15 blocks +Direct write to every other block of fallocated space +Verify $testfile's extent count diff --git a/tests/xfs/group b/tests/xfs/group index 0e98d623..c17bc140 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -524,6 +524,7 @@ 524 auto quick punch zero insert collapse 525 auto quick attr 526 auto quick dir hardlink symlink +527 auto quick 758 auto quick rw attr realtime 759 auto quick rw realtime 760 auto quick rw collapse punch insert zero prealloc