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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2013 Red Hat, Inc. All Rights Reserved.
#
# FS QA Test No. btrfs/020
#
# btrfs device replace test on RO fs
#
# Regression test for commit:
# bbb651e Btrfs: don't allow the replace procedure on read only filesystems
#
. ./common/preamble
_begin_fstest auto quick replace volume
# Override the default cleanup function.
_cleanup()
{
cd /
rm -f $tmp.*
$UMOUNT_PROG $loop_mnt
_destroy_loop_device $loop_dev1
losetup -d $loop_dev2 >/dev/null 2>&1
_destroy_loop_device $loop_dev3
rm -rf $loop_mnt
rm -f $fs_img1 $fs_img2 $fs_img3
}
. ./common/filter
_supported_fs btrfs
_require_test
_require_loop
echo "Silence is golden"
loop_mnt=$TEST_DIR/$seq.$$.mnt
fs_img1=$TEST_DIR/$seq.$$.img1
fs_img2=$TEST_DIR/$seq.$$.img2
fs_img3=$TEST_DIR/$seq.$$.img3
mkdir $loop_mnt
$XFS_IO_PROG -f -c "truncate 256m" $fs_img1 >>$seqres.full 2>&1
$XFS_IO_PROG -f -c "truncate 256m" $fs_img2 >>$seqres.full 2>&1
$XFS_IO_PROG -f -c "truncate 256m" $fs_img3 >>$seqres.full 2>&1
loop_dev1=`_create_loop_device $fs_img1`
loop_dev2=`_create_loop_device $fs_img2`
loop_dev3=`_create_loop_device $fs_img3`
_mkfs_dev -m raid1 -d raid1 $loop_dev1 $loop_dev2 >>$seqres.full 2>&1
_mount -o ro $loop_dev1 $loop_mnt
$BTRFS_UTIL_PROG replace start -B 2 $loop_dev3 $loop_mnt >>$seqres.full 2>&1 && \
_fail "FAIL: Device replaced on RO btrfs"
status=0
exit
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