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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2020 Oracle. All Rights Reserved.
#
# FS QA Test 225
#
# Test for seed device-delete on a sprouted FS.
#
# Steps:
# Create a seed FS. Add a RW device to make it sprout FS and then delete
# the seed device.
. ./common/preamble
_begin_fstest auto quick volume seed
# Override the default cleanup function.
_cleanup()
{
cd /
rm -f $tmp.*
_btrfs_rescan_devices
}
# Import common functions.
. ./common/filter
# real QA test starts here
# Modify as appropriate.
_supported_fs btrfs
_fixed_by_kernel_commit b5ddcffa3777 \
"btrfs: fix put of uninitialized kobject after seed device delete"
_require_test
_require_scratch_dev_pool 2
_require_btrfs_forget_or_module_loadable
_scratch_dev_pool_get 2
seed=$(echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $1}')
sprout=$(echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $2}')
_mkfs_dev $seed
_mount $seed $SCRATCH_MNT
$XFS_IO_PROG -f -c "pwrite -S 0xab 0 1M" $SCRATCH_MNT/foo > /dev/null
_scratch_unmount
$BTRFS_TUNE_PROG -S 1 $seed
# Mount the seed device and add the rw device
_mount -o ro $seed $SCRATCH_MNT
$BTRFS_UTIL_PROG device add -f $sprout $SCRATCH_MNT >> $seqres.full
_scratch_unmount
# Now remount
_mount $sprout $SCRATCH_MNT
$XFS_IO_PROG -f -c "pwrite -S 0xcd 0 1M" $SCRATCH_MNT/bar > /dev/null
echo --- before delete ----
od -x $SCRATCH_MNT/foo
od -x $SCRATCH_MNT/bar
$BTRFS_UTIL_PROG device delete $seed $SCRATCH_MNT
_scratch_unmount
_btrfs_forget_or_module_reload
_mount $sprout $SCRATCH_MNT
echo --- after delete ----
od -x $SCRATCH_MNT/foo
od -x $SCRATCH_MNT/bar
_scratch_dev_pool_put
_btrfs_rescan_devices
# success, all done
status=0
exit
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