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#! /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.
#
. ./common/preamble
_begin_fstest auto quick seed
# Import common functions.
. ./common/filter
# real QA test starts here
_supported_fs btrfs
_fixed_by_kernel_commit 4faf55b03823 \
"btrfs: don't traverse into the seed devices in show_devname"
_require_scratch_dev_pool 2
_scratch_dev_pool_get 2
seed=$(echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $1}')
sprout=$(echo $SCRATCH_DEV_POOL | $AWK_PROG '{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 >> $seqres.full
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
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