From patchwork Mon Jan 18 06:20:16 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: 12026625 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 50688C433E9 for ; Mon, 18 Jan 2021 06:22:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 299A9229C4 for ; Mon, 18 Jan 2021 06:22:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732132AbhARGWQ (ORCPT ); Mon, 18 Jan 2021 01:22:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33940 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732041AbhARGWI (ORCPT ); Mon, 18 Jan 2021 01:22:08 -0500 Received: from mail-pj1-x1033.google.com (mail-pj1-x1033.google.com [IPv6:2607:f8b0:4864:20::1033]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A4B26C0613CF; Sun, 17 Jan 2021 22:20:55 -0800 (PST) Received: by mail-pj1-x1033.google.com with SMTP id j12so176746pjy.5; Sun, 17 Jan 2021 22:20:55 -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=AFgkXl70cbhwwIhksj5vcFlmJ2rymNpMwaLmT5JS7VI=; b=jVFW9vzeu51KMshOQY2HjHJY1V0TMNZUCtqCJlgcyTxSLSkehWQk+jncf9q72Gaw9/ /Jjf7dzBsBBul/IS+itiO631Dwq1cVG+jjWaSVN4chA9rmX9GyLxAsAU7QPyFa9kxPJm 44T9x8g3ZPXdTAtIpXuLGAfWj2Fj1fZOdYqBXl/lRsrGYPWeHiCj6Lii7iktJwBVTaga OmfVPC3pxg0OczdpndLTS/q13QqG53XENQiDyfr/0X1vGJEylwVRwmJrso24Lbwer20w pqPoSmiNC8OmqHFIkqvrGhw4jvpFhLxx3tkncmYVRagmiJfWw51cVutWTnuN9QD6RdiG 040g== 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=AFgkXl70cbhwwIhksj5vcFlmJ2rymNpMwaLmT5JS7VI=; b=A2vr3cPHeX7jzI5HH5b434Azg9hoGuL7TGiyrxhVwHUTHNIqFju/1DzIoxhb63Wy4y d5Syt0PFA2d2O9nWnjdUm8UH+/O7taTPp3dYY+scNLwf4YAcUAjf/90OHW4ckgGUuYDB F1aV9xcGY/vPXprkxnsYBgSTcK+edEgqQnaVMpG5RtAiwnFl9RCcRLIaLl4QYlrzoy2V +lT+PVeuXVNhlgoy2NI/Lu4AN83QgpS9wFh6JJzyNkaT/RV/u/frp18rAIQ05wfa25Ut f97s1cNa8rtEZJwKoVx2OT5Ycmre1eTw7AcH5Ufsrb3M58Igwijod6trYoaBhZ+MXZGQ jXqg== X-Gm-Message-State: AOAM530BEKHkj3Fv9lLO0vxGZkl6eydqhpkJQPBpUu96HOPqHAiktPQL o0c9L1snErYzXG72irt6I05jyxJ9U10= X-Google-Smtp-Source: ABdhPJxKiCmOrICSpOsjVWLm+Aaa13ByUD1GcTawPIYxF0iaOzNoTWuoGkBgOkgjoHQMcJfjiwQTfA== X-Received: by 2002:a17:90a:d70e:: with SMTP id y14mr24507766pju.9.1610950855157; Sun, 17 Jan 2021 22:20:55 -0800 (PST) Received: from localhost.localdomain ([122.179.96.31]) by smtp.gmail.com with ESMTPSA id t1sm14608423pfq.154.2021.01.17.22.20.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 17 Jan 2021 22:20:54 -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 05/11] xfs: Check for extent overflow when adding/removing xattrs Date: Mon, 18 Jan 2021 11:50:16 +0530 Message-Id: <20210118062022.15069-6-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 adding/removing xattrs. Signed-off-by: Chandan Babu R Reviewed-by: Darrick J. Wong --- tests/xfs/525 | 141 ++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/525.out | 18 ++++++ tests/xfs/group | 1 + 3 files changed, 160 insertions(+) create mode 100755 tests/xfs/525 create mode 100644 tests/xfs/525.out diff --git a/tests/xfs/525 b/tests/xfs/525 new file mode 100755 index 00000000..bdca846d --- /dev/null +++ b/tests/xfs/525 @@ -0,0 +1,141 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2020 Chandan Babu R. All Rights Reserved. +# +# FS QA Test 525 +# +# Verify that XFS does not cause inode fork's extent count to overflow when +# Adding/removing xattrs. +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/attr +. ./common/inject +. ./common/populate + +# remove previous $seqres.full before test +rm -f $seqres.full + +# real QA test starts here + +_supported_fs xfs +_require_scratch +_require_attrs +_require_xfs_debug +_require_test_program "punch-alternating" +_require_xfs_io_error_injection "reduce_max_iextents" +_require_xfs_io_error_injection "bmap_alloc_minlen_extent" + +echo "Format and mount fs" +_scratch_mkfs_sized $((1024 * 1024 * 1024)) >> $seqres.full +_scratch_mount >> $seqres.full + +bsize=$(_get_block_size $SCRATCH_MNT) + +attr_len=255 + +testfile=$SCRATCH_MNT/testfile + +echo "Consume free space" +fillerdir=$SCRATCH_MNT/fillerdir +nr_free_blks=$(stat -f -c '%f' $SCRATCH_MNT) +nr_free_blks=$((nr_free_blks * 90 / 100)) + +_fill_fs $((bsize * nr_free_blks)) $fillerdir $bsize 0 >> $seqres.full 2>&1 + +echo "Create fragmented filesystem" +for dentry in $(ls -1 $fillerdir/); do + $here/src/punch-alternating $fillerdir/$dentry >> $seqres.full +done + +echo "Inject reduce_max_iextents error tag" +_scratch_inject_error reduce_max_iextents 1 + +echo "Inject bmap_alloc_minlen_extent error tag" +_scratch_inject_error bmap_alloc_minlen_extent 1 + +echo "* Set xattrs" + +echo "Create \$testfile" +touch $testfile + +echo "Create xattrs" +nr_attrs=$((bsize * 20 / attr_len)) +for i in $(seq 1 $nr_attrs); do + attr="$(printf "trusted.%0247d" $i)" + $SETFATTR_PROG -n "$attr" $testfile >> $seqres.full 2>&1 + [[ $? != 0 ]] && break +done + +echo "Verify \$testfile's naextent count" + +naextents=$($XFS_IO_PROG -f -c 'stat' $testfile | grep naextents) +naextents=${naextents##fsxattr.naextents = } +if (( $naextents > 10 )); then + echo "Extent count overflow check failed: naextents = $naextents" + exit 1 +fi + +echo "Remove \$testfile" +rm $testfile + +echo "* Remove xattrs" + +echo "Create \$testfile" +touch $testfile + +echo "Disable reduce_max_iextents error tag" +_scratch_inject_error reduce_max_iextents 0 + +echo "Create initial xattr extents" + +naextents=0 +last="" +start=1 +nr_attrs=$((bsize / attr_len)) + +while (( $naextents < 4 )); do + end=$((start + nr_attrs - 1)) + + for i in $(seq $start $end); do + attr="$(printf "trusted.%0247d" $i)" + $SETFATTR_PROG -n $attr $testfile + done + + start=$((end + 1)) + + naextents=$($XFS_IO_PROG -f -c 'stat' $testfile | grep naextents) + naextents=${naextents##fsxattr.naextents = } +done + +echo "Inject reduce_max_iextents error tag" +_scratch_inject_error reduce_max_iextents 1 + +echo "Remove xattr to trigger -EFBIG" +attr="$(printf "trusted.%0247d" 1)" +$SETFATTR_PROG -x "$attr" $testfile >> $seqres.full 2>&1 +if [[ $? == 0 ]]; then + echo "Xattr removal succeeded; Should have failed " + exit 1 +fi + +rm $testfile && echo "Successfully removed \$testfile" + +# success, all done +status=0 +exit diff --git a/tests/xfs/525.out b/tests/xfs/525.out new file mode 100644 index 00000000..74b152d9 --- /dev/null +++ b/tests/xfs/525.out @@ -0,0 +1,18 @@ +QA output created by 525 +Format and mount fs +Consume free space +Create fragmented filesystem +Inject reduce_max_iextents error tag +Inject bmap_alloc_minlen_extent error tag +* Set xattrs +Create $testfile +Create xattrs +Verify $testfile's naextent count +Remove $testfile +* Remove xattrs +Create $testfile +Disable reduce_max_iextents error tag +Create initial xattr extents +Inject reduce_max_iextents error tag +Remove xattr to trigger -EFBIG +Successfully removed $testfile diff --git a/tests/xfs/group b/tests/xfs/group index 3fa38c36..bd38aff0 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -522,3 +522,4 @@ 522 auto quick quota 523 auto quick realtime growfs 524 auto quick punch zero insert collapse +525 auto quick attr