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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2018 Oracle. All Rights Reserved.
#
# FS QA Test 162
#
# Nested seed device test
# Create a seed device
# Create a sprout device
# Make the sprout device a seed device and create a sprout device again
#
. ./common/preamble
_begin_fstest auto quick volume seed
. ./common/filter
. ./common/filter.btrfs
_supported_fs btrfs
_require_command "$BTRFS_TUNE_PROG" btrfstune
_require_scratch_dev_pool 3
_scratch_dev_pool_get 3
dev_seed=$(echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $1}')
dev_sprout_seed=$(echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $2}')
dev_sprout=$(echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $3}')
create_seed()
{
_mkfs_dev $dev_seed
run_check _mount $dev_seed $SCRATCH_MNT
$XFS_IO_PROG -f -d -c "pwrite -S 0xab 0 256K" $SCRATCH_MNT/foobar >\
/dev/null
echo -- gloden --
od -x $SCRATCH_MNT/foobar
_btrfs filesystem show -m $SCRATCH_MNT
_scratch_unmount
$BTRFS_TUNE_PROG -S 1 $dev_seed
}
create_sprout_seed()
{
run_check _mount $dev_seed $SCRATCH_MNT
_btrfs device add -f $dev_sprout_seed $SCRATCH_MNT >>\
$seqres.full
_scratch_unmount
$BTRFS_TUNE_PROG -S 1 $dev_sprout_seed
}
create_next_sprout()
{
run_check _mount $dev_sprout_seed $SCRATCH_MNT
_btrfs device add -f $dev_sprout $SCRATCH_MNT >>\
$seqres.full
_scratch_unmount
run_check _mount $dev_sprout $SCRATCH_MNT
echo -- sprout --
od -x $SCRATCH_MNT/foobar
}
create_seed
create_sprout_seed
create_next_sprout
_scratch_dev_pool_put
status=0
exit
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