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

["Darrick J. Wong" <darrick.wong@oracle.com>]

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"
+
+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 online"
+_scratch_xfs_admin -L "label2"
+
+echo "Read label online"
+_scratch_xfs_admin -l
+
+echo "Read label offline"
+_scratch_unmount
+_scratch_xfs_admin -l
+
+echo
+echo "Clear label online"
+_scratch_mount
+_scratch_xfs_admin -L "--"
+
+echo "Read label online"
+_scratch_xfs_admin -l
+
+echo "Read label offline"
+_scratch_unmount
+_scratch_xfs_admin -l
+
+echo
+echo "Set label offline"
+_scratch_xfs_admin -L "label3"
+
+echo "Read label offline"
+_scratch_xfs_admin -l
+
+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