--- /dev/null
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2020 Oracle. All Rights Reserved.
+#
+# FS QA Test 216
+#
+# Test if the show_devname() returns sprout device instead of seed device.
+#
+# Fixed in kernel patch:
+# btrfs: btrfs_show_devname don't traverse into the seed fsid
+
+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
+
+# remove previous $seqres.full before test
+rm -f $seqres.full
+
+# real QA test starts here
+_supported_fs btrfs
+_supported_os Linux
+_require_scratch_dev_pool 2
+
+_scratch_dev_pool_get 2
+
+seed=$(echo $SCRATCH_DEV_POOL | awk '{print $1}')
+sprout=$(echo $SCRATCH_DEV_POOL | awk '{print $2}')
+
+_mkfs_dev $seed
+$BTRFS_TUNE_PROG -S 1 $seed
+_mount $seed $SCRATCH_MNT >> $seqres.full 2>&1
+cat /proc/self/mounts | grep $seed >> $seqres.full
+$BTRFS_UTIL_PROG device add -f $sprout $SCRATCH_MNT
+cat /proc/self/mounts | grep $sprout >> $seqres.full
+
+# check if the show_devname() returns the sprout device instead of seed device.
+dev=$(grep $SCRATCH_MNT /proc/self/mounts | $AWK_PROG '{print $1}')
+
+if [ "$sprout" != "$dev" ]; then
+ echo "Unexpected device: $dev, expected $sprout"
+fi
+echo "Silence is golden"
+
+_scratch_dev_pool_put
+
+# success, all done
+status=0
+exit