From patchwork Fri Nov 13 11:27:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chandan Babu R X-Patchwork-Id: 11903105 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CB8CB139F for ; Fri, 13 Nov 2020 11:29:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A6E552137B for ; Fri, 13 Nov 2020 11:29:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="tDTsWMN0" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726405AbgKML24 (ORCPT ); Fri, 13 Nov 2020 06:28:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58174 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726546AbgKML2H (ORCPT ); Fri, 13 Nov 2020 06:28:07 -0500 Received: from mail-pl1-x629.google.com (mail-pl1-x629.google.com [IPv6:2607:f8b0:4864:20::629]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 90B52C061A4A; Fri, 13 Nov 2020 03:27:53 -0800 (PST) Received: by mail-pl1-x629.google.com with SMTP id s2so4407746plr.9; Fri, 13 Nov 2020 03:27:53 -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=m+PciDivRWXUvLdWNX7xttPep6/rYh/hZOshTARBJVQ=; b=tDTsWMN0pwf2JFb4E5vnygFc1BAB/c4pvdgaz/lF+mjroWt/Rp8FMqAMcJDE6ubO6F p4dC1AF4o7knA0pElXC0CNhw7yf7mIP10pG2kPxxl5H7Q4XYqlK4XEqQyggAOh+HzNc2 tJ1JV7Q//f6dtKEiSRIatdichyHFdXBpN9kj1M8R1g5BlkqNgJ57UzBx0t7K7Tz2kiXh dBgfRQ9lbwBuqqhhsKKyvRgaw6qv6V8CSTdNW6uLWn8OBIa7k7TObJgts6gM/ZOvSxhU FsAFA34Ox3wxnysjEzuJw3FGdIl3IHKXED7sOdFsTQ8seQRR9gx8zDE+7TdaV/hoQ7Uq c7ag== 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=m+PciDivRWXUvLdWNX7xttPep6/rYh/hZOshTARBJVQ=; b=eSg51VMHqcg0zOoutv1GOU81zV7DmxrGxlZBzlKUOT5WMa+GS6uXeokxoLFfhYhzcf VK4N4doQKkIgVXpU6ubtuY4FsK5WgX+ZWP7qjYj88rsgRi19piFbXtuVYED5ssZvYfdn XEf1ZcX70QZ0zlTo0s7IEnW6D3XTIPZIhvpk+3MAO7Spd56tMmqrFpFFwCgW1UZsR1Yc d/nB3yArv8imbU7ziZ31LnpZ0PjWverBLhxj5pymCF3s0PpJLTnVKOj4QTKSCJ4qZpsv 8aMAwc3JNQqrdfiIx9GJdbvm9AhTDhqIXkY+H2g8dWtSwHXAx0gcz2LZG3H4/N9QFtUw TYww== X-Gm-Message-State: AOAM533svphGX4xNpZuUoFVlJXpJIzIMQqVxwwSDQTf1vL8tap60OMEU 4C2kDoHqcDn+wAU+BaYN3CofTK8vz+8= X-Google-Smtp-Source: ABdhPJzCh6KcHeuJUJgubAdEXMNdz5pcjtSot7PJwxy2EqoSEaQrvCkRyI33u/+D2VArJbciIVzaxw== X-Received: by 2002:a17:902:8685:b029:d7:bb:aa2 with SMTP id g5-20020a1709028685b02900d700bb0aa2mr1813554plo.13.1605266872870; Fri, 13 Nov 2020 03:27:52 -0800 (PST) Received: from localhost.localdomain ([122.172.185.167]) by smtp.gmail.com with ESMTPSA id w131sm9410857pfd.14.2020.11.13.03.27.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Nov 2020 03:27:52 -0800 (PST) From: Chandan Babu R To: fstests@vger.kernel.org Cc: Chandan Babu R , linux-xfs@vger.kernel.org, darrick.wong@oracle.com Subject: [PATCH 09/11] xfs: Check for extent overflow when remapping an extent Date: Fri, 13 Nov 2020 16:57:01 +0530 Message-Id: <20201113112704.28798-10-chandanrlinux@gmail.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201113112704.28798-1-chandanrlinux@gmail.com> References: <20201113112704.28798-1-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 remapping extents from one file's inode fork to another. Signed-off-by: Chandan Babu R --- tests/xfs/529 | 86 +++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/529.out | 8 +++++ tests/xfs/group | 1 + 3 files changed, 95 insertions(+) create mode 100755 tests/xfs/529 create mode 100644 tests/xfs/529.out diff --git a/tests/xfs/529 b/tests/xfs/529 new file mode 100755 index 00000000..a44ce199 --- /dev/null +++ b/tests/xfs/529 @@ -0,0 +1,86 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2020 Chandan Babu R. All Rights Reserved. +# +# FS QA Test 529 +# +# Verify that XFS does not cause inode fork's extent count to overflow when +# remapping extents from one file's inode fork to another. +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/reflink +. ./common/inject + +# remove previous $seqres.full before test +rm -f $seqres.full + +# real QA test starts here + +_supported_fs xfs +_require_scratch +_require_scratch_reflink +_require_xfs_debug +_require_xfs_io_command "reflink" +_require_xfs_io_error_injection "reduce_max_iextents" + +echo "* Reflink remap extents" + +echo "Format and mount fs" +_scratch_mkfs >> $seqres.full +_scratch_mount >> $seqres.full + +bsize=$(_get_block_size $SCRATCH_MNT) + +srcfile=${SCRATCH_MNT}/srcfile +dstfile=${SCRATCH_MNT}/dstfile + +nr_blks=15 + +echo "Create \$srcfile having an extent of length $nr_blks blocks" +xfs_io -f -c "pwrite -b $((nr_blks * bsize)) 0 $((nr_blks * bsize))" \ + -c fsync $srcfile >> $seqres.full + +echo "Create \$dstfile having an extent of length $nr_blks blocks" +xfs_io -f -c "pwrite -b $((nr_blks * bsize)) 0 $((nr_blks * bsize))" \ + -c fsync $dstfile >> $seqres.full + +echo "Inject reduce_max_iextents error tag" +xfs_io -x -c 'inject reduce_max_iextents' $SCRATCH_MNT + +echo "Reflink every other block from \$srcfile into \$dstfile" +for i in $(seq 1 2 $((nr_blks - 1))); do + xfs_io -f -c "reflink $srcfile $((i * bsize)) $((i * bsize)) $bsize" \ + $dstfile >> $seqres.full 2>&1 +done + +ino=$(stat -c "%i" $dstfile) + +_scratch_unmount >> $seqres.full + +echo "Verify \$dstfile's extent count" + +nextents=$(_scratch_get_iext_count $ino data || + _fail "Unable to obtain inode fork's extent count") +if (( $nextents > 10 )); then + echo "Extent count overflow check failed: nextents = $nextents" +fi + +# success, all done +status=0 +exit diff --git a/tests/xfs/529.out b/tests/xfs/529.out new file mode 100644 index 00000000..687a8bd2 --- /dev/null +++ b/tests/xfs/529.out @@ -0,0 +1,8 @@ +QA output created by 529 +* Reflink remap extents +Format and mount fs +Create $srcfile having an extent of length 15 blocks +Create $dstfile having an extent of length 15 blocks +Inject reduce_max_iextents error tag +Reflink every other block from $srcfile into $dstfile +Verify $dstfile's extent count diff --git a/tests/xfs/group b/tests/xfs/group index c85aac6b..bc3958b3 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -526,3 +526,4 @@ 526 auto quick dir hardlink symlink 527 auto quick 528 auto quick reflink +529 auto quick reflink