xref: /freebsd/tools/test/stress2/misc/seekhole.sh (revision dbd5678d)
1#!/bin/sh
2
3#
4# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
5#
6# Copyright (c) 2022 Peter Holm <pho@FreeBSD.org>
7#
8# Redistribution and use in source and binary forms, with or without
9# modification, are permitted provided that the following conditions
10# are met:
11# 1. Redistributions of source code must retain the above copyright
12#    notice, this list of conditions and the following disclaimer.
13# 2. Redistributions in binary form must reproduce the above copyright
14#    notice, this list of conditions and the following disclaimer in the
15#    documentation and/or other materials provided with the distribution.
16#
17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27# SUCH DAMAGE.
28#
29
30# A SEEK_HOLE / SEEK_DATA test scenario
31
32[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
33
34. ../default.cfg
35
36prog=$(basename "$0" .sh)
37exp=/tmp/$prog.exp
38here=`pwd`
39log=/tmp/$prog.log
40
41cc -o /tmp/lsholes -Wall -Wextra -O2 $here/../tools/lsholes.c | exit 1
42cat > $exp <<EXP
43Min hole size is 32768, file size is 524288000.
44data #1 @ 0, size=32768)
45hole #2 @ 32768, size=32768
46data #3 @ 65536, size=32768)
47hole #4 @ 98304, size=32768
48data #5 @ 131072, size=32768)
49hole #6 @ 163840, size=524091392
50data #7 @ 524255232, size=32768)
51hole #8 @ 524288000, size=0
52EXP
53
54set -eu
55mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
56mdconfig -s 2g -u $mdstart
57newfs -U /dev/md$mdstart > /dev/null
58mount /dev/md$mdstart $mntpoint
59set +e
60
61file=$mntpoint/file
62truncate -s 500m $file
63bs=`getconf MIN_HOLE_SIZE $file`
64printf "\001" | dd of=$file seek=$((0*bs)) bs=1 count=1 conv=notrunc status=none
65printf "\002" | dd of=$file seek=$((2*bs)) bs=1 count=1 conv=notrunc status=none
66printf "\003" | dd of=$file seek=$((4*bs)) bs=1 count=1 conv=notrunc status=none
67s1=0
68s2=0
69/tmp/lsholes $file > $log 2>&1; s1=$?
70
71cat $log
72cmp -s $exp $log || s2=1
73
74umount $mntpoint
75mdconfig -d -u $mdstart
76rm -f /tmp/lsholes $exp $log
77exit $((s1 + s2))
78