iotests: Add preallocated resize test for raw
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 20170613202107.10125-16-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
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Max Reitz
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#!/bin/bash
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#
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# Test preallocated resize of raw images
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#
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# Copyright (C) 2017 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# creator
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owner=mreitz@redhat.com
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seq=$(basename $0)
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echo "QA output created by $seq"
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here=$PWD
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment and filters
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. ./common.rc
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. ./common.filter
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_supported_fmt raw
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_supported_proto file
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_supported_os Linux
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# in kB
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CREATION_SIZE=128
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GROWTH_SIZE=256
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echo '=== Testing image growth ==='
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for create_mode in off falloc full; do
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for growth_mode in off falloc full; do
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echo
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echo "--- create_mode=$create_mode growth_mode=$growth_mode ---"
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IMGOPTS="preallocation=$create_mode" _make_test_img ${CREATION_SIZE}K
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$QEMU_IMG resize -f "$IMGFMT" --preallocation=$growth_mode "$TEST_IMG" +${GROWTH_SIZE}K
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expected_size=0
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if [ $create_mode != off ]; then
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expected_size=$CREATION_SIZE
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fi
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if [ $growth_mode != off ]; then
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expected_size=$((expected_size + $GROWTH_SIZE))
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fi
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actual_size=$($QEMU_IMG info -f "$IMGFMT" "$TEST_IMG" | grep 'disk size')
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actual_size=$(echo "$actual_size" | sed -e 's/^[^0-9]*\([0-9]\+\).*$/\1/')
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# The actual size may exceed the expected size, depending on the file
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# system. Therefore we just test that the actual size is at least what
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# we expect.
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if [ $actual_size -lt $expected_size ]; then
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echo "ERROR: Image should have at least ${expected_size}K, but has ${actual_size}K"
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fi
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done
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done
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echo
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echo '=== Testing image shrinking ==='
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# None of this should work except for "off", because other modes cannot be used
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# for shrinking
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for growth_mode in falloc full off; do
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echo
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echo "--- growth_mode=$growth_mode ---"
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$QEMU_IMG resize -f "$IMGFMT" --preallocation=$growth_mode "$TEST_IMG" -${GROWTH_SIZE}K
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done
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# success, all done
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echo '*** done'
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rm -f $seq.full
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status=0
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@ -0,0 +1,50 @@
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QA output created by 106
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=== Testing image growth ===
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--- create_mode=off growth_mode=off ---
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=131072 preallocation=off
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Image resized.
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--- create_mode=off growth_mode=falloc ---
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=131072 preallocation=off
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Image resized.
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--- create_mode=off growth_mode=full ---
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=131072 preallocation=off
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Image resized.
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--- create_mode=falloc growth_mode=off ---
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=131072 preallocation=falloc
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Image resized.
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--- create_mode=falloc growth_mode=falloc ---
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=131072 preallocation=falloc
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Image resized.
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--- create_mode=falloc growth_mode=full ---
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=131072 preallocation=falloc
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Image resized.
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--- create_mode=full growth_mode=off ---
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=131072 preallocation=full
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Image resized.
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--- create_mode=full growth_mode=falloc ---
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=131072 preallocation=full
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Image resized.
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--- create_mode=full growth_mode=full ---
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=131072 preallocation=full
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Image resized.
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=== Testing image shrinking ===
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--- growth_mode=falloc ---
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qemu-img: Preallocation can only be used for growing images
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--- growth_mode=full ---
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qemu-img: Preallocation can only be used for growing images
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--- growth_mode=off ---
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Image resized.
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*** done
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@ -112,6 +112,7 @@
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103 rw auto quick
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103 rw auto quick
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104 rw auto
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104 rw auto
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105 rw auto quick
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105 rw auto quick
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106 rw auto quick
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107 rw auto quick
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107 rw auto quick
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108 rw auto quick
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108 rw auto quick
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109 rw auto
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109 rw auto
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