1#!/usr/bin/env bash 2# 3# Test creating raw image preallocation mode 4# 5# Copyright (C) 2017 Nir Soffer <nirsof@gmail.com> 6# 7# This program is free software; you can redistribute it and/or modify 8# it under the terms of the GNU General Public License as published by 9# the Free Software Foundation; either version 2 of the License, or 10# (at your option) any later version. 11# 12# This program is distributed in the hope that it will be useful, 13# but WITHOUT ANY WARRANTY; without even the implied warranty of 14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15# GNU General Public License for more details. 16# 17# You should have received a copy of the GNU General Public License 18# along with this program. If not, see <http://www.gnu.org/licenses/>. 19# 20 21# creator 22owner=nirsof@gmail.com 23 24seq=`basename $0` 25echo "QA output created by $seq" 26 27status=1 # failure is the default! 28 29_cleanup() 30{ 31 _cleanup_test_img 32 rm -f "$TEST_DIR/empty" 33} 34trap "_cleanup; exit \$status" 0 1 2 3 15 35 36# Some file systems sometimes allocate extra blocks independently of 37# the file size. This function hides the resulting difference in the 38# stat -c '%b' output. 39# Parameter 1: Number of blocks an empty file occupies 40# Parameter 2: Image size in bytes 41_filter_blocks() 42{ 43 extra_blocks=$1 44 img_size=$2 45 46 sed -e "s/blocks=$extra_blocks\\(\$\\|[^0-9]\\)/nothing allocated/" \ 47 -e "s/blocks=$((extra_blocks + img_size / 512))\\(\$\\|[^0-9]\\)/everything allocated/" 48} 49 50# get standard environment, filters and checks 51. ./common.rc 52. ./common.filter 53 54_supported_fmt raw 55_supported_proto file 56_supported_os Linux 57 58size=$((1 * 1024 * 1024)) 59 60touch "$TEST_DIR/empty" 61extra_blocks=$(stat -c '%b' "$TEST_DIR/empty") 62 63echo 64echo "== creating image with default preallocation ==" 65_make_test_img $size | _filter_imgfmt 66stat -c "size=%s, blocks=%b" $TEST_IMG | _filter_blocks $extra_blocks $size 67 68for mode in off full falloc; do 69 echo 70 echo "== creating image with preallocation $mode ==" 71 IMGOPTS=preallocation=$mode _make_test_img $size | _filter_imgfmt 72 stat -c "size=%s, blocks=%b" $TEST_IMG | _filter_blocks $extra_blocks $size 73done 74 75# success, all done 76echo "*** done" 77rm -f $seq.full 78status=0 79