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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2016 Red Hat Inc. All Rights Reserved.
#
# FS QA Test 405
#
# Test mkfs against thin provision device, which has very small backing size,
# mkfs should return error when it hits EIO.
#
. ./common/preamble
_begin_fstest auto mkfs thin
# Initialize dmthin device with very small backing size & very big virtual
# size, with the hope that mkfs hit EIO at mkfs time
BACKING_SIZE=$((1 * 1024 * 1024 / 512)) # 1M
VIRTUAL_SIZE=$((1 * 1024 * 1024 * 1024 * 1024 / 512)) # 1T
# Override the default cleanup function.
_cleanup()
{
_dmthin_cleanup
cd /
rm -f $tmp.*
}
# Import common functions.
. ./common/filter
. ./common/dmthin
# real QA test starts here
_supported_fs generic
# $SCRATCH_DEV won't be directly created filesystem on, so fsck isn't required
_require_scratch_nocheck
_require_dm_target thin-pool
_dmthin_init $BACKING_SIZE $VIRTUAL_SIZE
# try mkfs on dmthin device, expect mkfs failure if 1M isn't big enough to hold
# all the metadata. But if mkfs returns success, we expect the filesystem is
# consistent, make sure it doesn't currupt silently.
$MKFS_PROG -t $FSTYP $DMTHIN_VOL_DEV >>$seqres.full 2>&1
if [ $? -eq 0 ]; then
_dmthin_check_fs
fi
echo "Silence is golden"
status=0
exit
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