1*89d22bc3SStefan Hajnoczi#!/bin/bash 2*89d22bc3SStefan Hajnoczi# 3*89d22bc3SStefan Hajnoczi# Test that sub-cluster allocating writes zero the rest of the cluster 4*89d22bc3SStefan Hajnoczi# 5*89d22bc3SStefan Hajnoczi# Copyright (C) 2010 IBM, Corp. 6*89d22bc3SStefan Hajnoczi# 7*89d22bc3SStefan Hajnoczi# This program is free software; you can redistribute it and/or modify 8*89d22bc3SStefan Hajnoczi# it under the terms of the GNU General Public License as published by 9*89d22bc3SStefan Hajnoczi# the Free Software Foundation; either version 2 of the License, or 10*89d22bc3SStefan Hajnoczi# (at your option) any later version. 11*89d22bc3SStefan Hajnoczi# 12*89d22bc3SStefan Hajnoczi# This program is distributed in the hope that it will be useful, 13*89d22bc3SStefan Hajnoczi# but WITHOUT ANY WARRANTY; without even the implied warranty of 14*89d22bc3SStefan Hajnoczi# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15*89d22bc3SStefan Hajnoczi# GNU General Public License for more details. 16*89d22bc3SStefan Hajnoczi# 17*89d22bc3SStefan Hajnoczi# You should have received a copy of the GNU General Public License 18*89d22bc3SStefan Hajnoczi# along with this program. If not, see <http://www.gnu.org/licenses/>. 19*89d22bc3SStefan Hajnoczi# 20*89d22bc3SStefan Hajnoczi 21*89d22bc3SStefan Hajnoczi# creator 22*89d22bc3SStefan Hajnocziowner=stefanha@linux.vnet.ibm.com 23*89d22bc3SStefan Hajnoczi 24*89d22bc3SStefan Hajnocziseq=`basename $0` 25*89d22bc3SStefan Hajnocziecho "QA output created by $seq" 26*89d22bc3SStefan Hajnoczi 27*89d22bc3SStefan Hajnoczihere=`pwd` 28*89d22bc3SStefan Hajnoczitmp=/tmp/$$ 29*89d22bc3SStefan Hajnoczistatus=1 # failure is the default! 30*89d22bc3SStefan Hajnoczi 31*89d22bc3SStefan Hajnoczi_cleanup() 32*89d22bc3SStefan Hajnoczi{ 33*89d22bc3SStefan Hajnoczi _cleanup_test_img 34*89d22bc3SStefan Hajnoczi} 35*89d22bc3SStefan Hajnoczitrap "_cleanup; exit \$status" 0 1 2 3 15 36*89d22bc3SStefan Hajnoczi 37*89d22bc3SStefan Hajnoczi# get standard environment, filters and checks 38*89d22bc3SStefan Hajnoczi. ./common.rc 39*89d22bc3SStefan Hajnoczi. ./common.filter 40*89d22bc3SStefan Hajnoczi 41*89d22bc3SStefan Hajnoczi_supported_fmt vmdk qcow qcow2 42*89d22bc3SStefan Hajnoczi_supported_os Linux 43*89d22bc3SStefan Hajnoczi 44*89d22bc3SStefan Hajnoczi 45*89d22bc3SStefan Hajnoczisize=128M 46*89d22bc3SStefan Hajnoczicluster_size=65536 47*89d22bc3SStefan Hajnoczisubcluster_offset=1024 48*89d22bc3SStefan Hajnoczisubcluster_size=2048 49*89d22bc3SStefan Hajnoczi_make_test_img $size 50*89d22bc3SStefan Hajnoczi 51*89d22bc3SStefan Hajnoczi# This first write causes an L2 table to be allocated so that the next write 52*89d22bc3SStefan Hajnoczi# doesn't need to allocate one and is therefore at the end of the image file. 53*89d22bc3SStefan Hajnoczi# Otherwise an L2 table could get in the way after the data cluster. 54*89d22bc3SStefan Hajnocziecho 55*89d22bc3SStefan Hajnocziecho "== writing first cluster to populate metadata ==" 56*89d22bc3SStefan Hajnoczi$QEMU_IO -c "write -pP 0xde $cluster_size $cluster_size" $TEST_IMG | _filter_qemu_io 57*89d22bc3SStefan Hajnoczi 58*89d22bc3SStefan Hajnocziecho 59*89d22bc3SStefan Hajnocziecho "== writing at sub-cluster granularity ==" 60*89d22bc3SStefan Hajnoczi$QEMU_IO -c "write -pP 0xa $subcluster_offset $subcluster_size" $TEST_IMG | _filter_qemu_io 61*89d22bc3SStefan Hajnoczi 62*89d22bc3SStefan Hajnocziecho 63*89d22bc3SStefan Hajnocziecho "== verify pattern ==" 64*89d22bc3SStefan Hajnoczi$QEMU_IO -c "read -pP 0xa $subcluster_offset $subcluster_size" $TEST_IMG | _filter_qemu_io 65*89d22bc3SStefan Hajnoczi 66*89d22bc3SStefan Hajnocziecho 67*89d22bc3SStefan Hajnocziecho "== verify zeroes before sub-cluster pattern ==" 68*89d22bc3SStefan Hajnoczi$QEMU_IO -c "read -pP 0 -l $subcluster_offset 0 $subcluster_size" $TEST_IMG | _filter_qemu_io 69*89d22bc3SStefan Hajnoczi 70*89d22bc3SStefan Hajnocziecho 71*89d22bc3SStefan Hajnocziecho "== verify zeroes after sub-cluster pattern ==" 72*89d22bc3SStefan Hajnoczi$QEMU_IO -c "read -pP 0 -l 512 -s $subcluster_size $subcluster_offset $(( subcluster_size + 512 ))" $TEST_IMG | _filter_qemu_io 73*89d22bc3SStefan Hajnoczi 74*89d22bc3SStefan Hajnoczi# success, all done 75*89d22bc3SStefan Hajnocziecho "*** done" 76*89d22bc3SStefan Hajnoczirm -f $seq.full 77*89d22bc3SStefan Hajnoczistatus=0 78