Re: [PATCH 2/2] xfs: test setting labels with xfs_admin

From: Brian Foster <bfoster@redhat.com>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: guaneryu@gmail.com, linux-xfs@vger.kernel.org, fstests@vger.kernel.org
Subject: Re: [PATCH 2/2] xfs: test setting labels with xfs_admin
Date: Mon, 17 Feb 2020 13:06:17 -0500	[thread overview]
Message-ID: <20200217180617.GD6633@bfoster> (raw)
In-Reply-To: <157915150275.2375135.12157351351400702116.stgit@magnolia>

On Wed, Jan 15, 2020 at 09:11:42PM -0800, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@oracle.com>
> 
> Test setting filesystem labels with xfs_admin.
> 
> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
> ---
>  tests/xfs/912     |  103 +++++++++++++++++++++++++++++++++++++++++++++++++++++
>  tests/xfs/912.out |   43 ++++++++++++++++++++++
>  tests/xfs/group   |    1 +
>  3 files changed, 147 insertions(+)
>  create mode 100755 tests/xfs/912
>  create mode 100644 tests/xfs/912.out
> 
> 
> diff --git a/tests/xfs/912 b/tests/xfs/912
> new file mode 100755
> index 00000000..1eef36cd
> --- /dev/null
> +++ b/tests/xfs/912
> @@ -0,0 +1,103 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0-or-later
> +# Copyright (c) 2020, Oracle and/or its affiliates.  All Rights Reserved.
> +#
> +# FS QA Test No. 912
> +#
> +# Check that xfs_admin can set and clear filesystem labels offline and online.
> +
> +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 /
> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +
> +# real QA test starts here
> +_supported_fs xfs
> +_supported_os Linux
> +_require_scratch
> +_require_xfs_db_command label
> +_require_xfs_io_command label
> +grep -q "xfs_io" "$(which xfs_admin)" || \
> +	_notrun "xfs_admin does not support online label setting of any kind"

So we assume xfs_admin functionality by looking at the script..? This
seems like it should have its own _require_* helper or some such with a
more explicit implementation. (This also ignores the XFS_ADMIN_PROG env
var added by the previous patch as well, fwiw).

> +
> +rm -f $seqres.full
> +
> +echo
> +echo "Format with label"
> +_scratch_mkfs -L "label0" > $seqres.full
> +
> +echo "Read label offline"
> +_scratch_xfs_admin -l
> +
> +echo "Read label online"
> +_scratch_mount
> +_scratch_xfs_admin -l
> +
> +echo
> +echo "Set label offline"
> +_scratch_unmount
> +_scratch_xfs_admin -L "label1"
> +
> +echo "Read label offline"
> +_scratch_xfs_admin -l
> +
> +echo "Read label online"
> +_scratch_mount
> +_scratch_xfs_admin -l
...
> +echo
> +echo "Set label offline"
> +_scratch_xfs_admin -L "label3"
> +
> +echo "Read label offline"
> +_scratch_xfs_admin -l
> +

Any reason for the duplicate "set label offline" test? Otherwise LGTM.

Brian

> +echo
> +echo "Clear label offline"
> +_scratch_xfs_admin -L "--"
> +
> +echo "Read label offline"
> +_scratch_xfs_admin -l
> +
> +echo "Read label online"
> +_scratch_mount
> +_scratch_xfs_admin -l
> +
> +# success, all done
> +status=0
> +exit
> diff --git a/tests/xfs/912.out b/tests/xfs/912.out
> new file mode 100644
> index 00000000..186d827f
> --- /dev/null
> +++ b/tests/xfs/912.out
> @@ -0,0 +1,43 @@
> +QA output created by 912
> +
> +Format with label
> +Read label offline
> +label = "label0"
> +Read label online
> +label = "label0"
> +
> +Set label offline
> +writing all SBs
> +new label = "label1"
> +Read label offline
> +label = "label1"
> +Read label online
> +label = "label1"
> +
> +Set label online
> +label = "label2"
> +Read label online
> +label = "label2"
> +Read label offline
> +label = "label2"
> +
> +Clear label online
> +label = ""
> +Read label online
> +label = ""
> +Read label offline
> +label = ""
> +
> +Set label offline
> +writing all SBs
> +new label = "label3"
> +Read label offline
> +label = "label3"
> +
> +Clear label offline
> +writing all SBs
> +new label = ""
> +Read label offline
> +label = ""
> +Read label online
> +label = ""
> diff --git a/tests/xfs/group b/tests/xfs/group
> index a6c9ef08..cc1d122a 100644
> --- a/tests/xfs/group
> +++ b/tests/xfs/group
> @@ -511,3 +511,4 @@
>  511 auto quick quota
>  747 auto quick scrub
>  748 auto quick scrub
> +912 auto quick label
> 