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#!/bin/bash
#
# Copyright (C) 2014 Federico Simoncelli <fsimonce@redhat.com>
#
# This file is part of util-linux.
#
# This file is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This file is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
TS_TOPDIR="${0%/*}/../.."
TS_DESC="offsets"
. $TS_TOPDIR/functions.sh
ts_init "$*"
ts_check_test_command "$TS_CMD_BLKDISCARD"
ts_skip_nonroot
ts_check_losetup
set -o pipefail
ORIGPWD=$(pwd)
IMAGE_NAME="${TS_TESTNAME}-loop.img"
IMAGE_PATH="$TS_OUTDIR/$IMAGE_NAME"
truncate -s 10M $IMAGE_PATH
ts_log "create loop device from image"
DEVICE=$($TS_CMD_LOSETUP --show -f $IMAGE_PATH)
CMD_SED_DEVICE="sed s#$DEVICE:\s##"
ts_log "testing offsets with full block size"
$TS_CMD_BLKDISCARD -v $DEVICE 2>&1 | $CMD_SED_DEVICE >> $TS_OUTPUT
$TS_CMD_BLKDISCARD -v -o 1 $DEVICE 2>&1 | $CMD_SED_DEVICE >> $TS_OUTPUT
$TS_CMD_BLKDISCARD -v -o 511 $DEVICE 2>&1 | $CMD_SED_DEVICE >> $TS_OUTPUT
$TS_CMD_BLKDISCARD -v -o 512 $DEVICE 2>&1 | $CMD_SED_DEVICE >> $TS_OUTPUT
$TS_CMD_BLKDISCARD -v -o 1024 $DEVICE 2>&1 | $CMD_SED_DEVICE >> $TS_OUTPUT
ts_log "testing offsets with specific length"
$TS_CMD_BLKDISCARD -v -l 5242880 $DEVICE 2>&1 | $CMD_SED_DEVICE >> $TS_OUTPUT
$TS_CMD_BLKDISCARD -v -l 5242881 $DEVICE 2>&1 | $CMD_SED_DEVICE >> $TS_OUTPUT
$TS_CMD_BLKDISCARD -v -l 5243391 $DEVICE 2>&1 | $CMD_SED_DEVICE >> $TS_OUTPUT
$TS_CMD_BLKDISCARD -v -o 1 -l 5242880 $DEVICE 2>&1 | $CMD_SED_DEVICE >> $TS_OUTPUT
$TS_CMD_BLKDISCARD -v -o 511 -l 5242880 $DEVICE 2>&1 | $CMD_SED_DEVICE >> $TS_OUTPUT
$TS_CMD_BLKDISCARD -v -o 512 -l 5242880 $DEVICE 2>&1 | $CMD_SED_DEVICE >> $TS_OUTPUT
$TS_CMD_BLKDISCARD -v -o 1024 -l 5242880 $DEVICE 2>&1 | $CMD_SED_DEVICE >> $TS_OUTPUT
ts_log "detach loop device from image"
$TS_CMD_LOSETUP -d $DEVICE 2>&1 >> $TS_OUTPUT
ts_cd "$ORIGPWD"
ts_finalize
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