#!/bin/bash # # Test concurrent pread/pwrite # # Copyright (C) 2014 Red Hat, Inc. # # This program 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 program 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. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. # # creator owner=kwolf@redhat.com seq=`basename $0` echo "QA output created by $seq" here=`pwd` status=1 # failure is the default! _cleanup() { _cleanup_test_img } trap "_cleanup; exit \$status" 0 1 2 3 15 # get standard environment, filters and checks . ./common.rc . ./common.filter _supported_fmt raw _supported_proto generic _supported_os Linux CLUSTER_SIZE=4k size=128M _make_test_img $size echo echo "== Some concurrent requests involving RMW ==" function test_io() { echo "open -o driver=$IMGFMT,file.align=4k blkdebug::$TEST_IMG" # A simple RMW request cat <<EOF aio_write -P 10 0x200 0x200 aio_flush EOF # Sequential RMW requests on the same physical sector off=0x1000 for ev in "head" "after_head" "tail" "after_tail"; do cat <<EOF break pwritev_rmw_$ev A aio_write -P 10 $((off + 0x200)) 0x200 wait_break A aio_write -P 11 $((off + 0x400)) 0x200 sleep 100 resume A aio_flush EOF off=$((off + 0x1000)) done # Chained dependencies cat <<EOF break pwritev_rmw_after_tail A aio_write -P 10 0x5000 0x200 wait_break A aio_write -P 11 0x5200 0x200 aio_write -P 12 0x5400 0x200 aio_write -P 13 0x5600 0x200 aio_write -P 14 0x5800 0x200 aio_write -P 15 0x5a00 0x200 aio_write -P 16 0x5c00 0x200 aio_write -P 17 0x5e00 0x200 sleep 100 resume A aio_flush EOF # Overlapping multiple requests cat <<EOF break pwritev_rmw_after_tail A aio_write -P 10 0x6000 0x200 wait_break A break pwritev_rmw_after_head B aio_write -P 10 0x7e00 0x200 wait_break B aio_write -P 11 0x6800 0x1000 resume A sleep 100 resume B aio_flush EOF cat <<EOF break pwritev_rmw_after_tail A aio_write -P 10 0x8000 0x200 wait_break A break pwritev_rmw_after_head B aio_write -P 10 0x9e00 0x200 wait_break B aio_write -P 11 0x8800 0x1000 resume B sleep 100 resume A aio_flush EOF cat <<EOF break pwritev_rmw_after_tail A aio_write -P 10 0xa000 0x200 wait_break A aio_write -P 11 0xa800 0x1000 break pwritev_rmw_after_head B aio_write -P 10 0xbe00 0x200 wait_break B resume A sleep 100 resume B aio_flush EOF cat <<EOF break pwritev_rmw_after_tail A aio_write -P 10 0xc000 0x200 wait_break A aio_write -P 11 0xc800 0x1000 break pwritev_rmw_after_head B aio_write -P 10 0xde00 0x200 wait_break B resume B sleep 100 resume A aio_flush EOF # Only RMW for the tail part cat <<EOF break pwritev_rmw_after_tail A aio_write -P 10 0xe000 0x1800 wait_break A aio_write -P 11 0xf000 0xc00 sleep 100 resume A aio_flush EOF cat <<EOF break pwritev A aio_write -P 10 0x10000 0x800 wait_break A break pwritev_rmw_after_tail B aio_write -P 11 0x10000 0x400 break pwritev_done C resume A wait_break C resume C sleep 100 wait_break B resume B aio_flush EOF cat <<EOF break pwritev A aio_write -P 10 0x11000 0x800 wait_break A aio_write -P 11 0x11000 0x1000 sleep 100 resume A aio_flush EOF } test_io | $QEMU_IO | _filter_qemu_io | \ sed -e 's,[0-9/]* bytes at offset [0-9]*,XXX/XXX bytes at offset XXX,g' \ -e 's/^[0-9]* \(bytes\|KiB\)/XXX bytes/' \ -e '/Suspended/d' echo echo "== Verify image content ==" function verify_io() { # A simple RMW request echo read -P 0 0 0x200 echo read -P 10 0x200 0x200 echo read -P 0 0x400 0xc00 # Sequential RMW requests on the same physical sector echo read -P 0 0x1000 0x200 echo read -P 10 0x1200 0x200 echo read -P 11 0x1400 0x200 echo read -P 0 0x1600 0xa00 echo read -P 0 0x2000 0x200 echo read -P 10 0x2200 0x200 echo read -P 11 0x2400 0x200 echo read -P 0 0x2600 0xa00 echo read -P 0 0x3000 0x200 echo read -P 10 0x3200 0x200 echo read -P 11 0x3400 0x200 echo read -P 0 0x3600 0xa00 echo read -P 0 0x4000 0x200 echo read -P 10 0x4200 0x200 echo read -P 11 0x4400 0x200 echo read -P 0 0x4600 0xa00 # Chained dependencies echo read -P 10 0x5000 0x200 echo read -P 11 0x5200 0x200 echo read -P 12 0x5400 0x200 echo read -P 13 0x5600 0x200 echo read -P 14 0x5800 0x200 echo read -P 15 0x5a00 0x200 echo read -P 16 0x5c00 0x200 echo read -P 17 0x5e00 0x200 # Overlapping multiple requests echo read -P 10 0x6000 0x200 echo read -P 0 0x6200 0x600 echo read -P 11 0x6800 0x1000 echo read -P 0 0x7800 0x600 echo read -P 10 0x7e00 0x200 echo read -P 10 0x8000 0x200 echo read -P 0 0x8200 0x600 echo read -P 11 0x8800 0x1000 echo read -P 0 0x9800 0x600 echo read -P 10 0x9e00 0x200 echo read -P 10 0xa000 0x200 echo read -P 0 0xa200 0x600 echo read -P 11 0xa800 0x1000 echo read -P 0 0xb800 0x600 echo read -P 10 0xbe00 0x200 echo read -P 10 0xc000 0x200 echo read -P 0 0xc200 0x600 echo read -P 11 0xc800 0x1000 echo read -P 0 0xd800 0x600 echo read -P 10 0xde00 0x200 # Only RMW for the tail part echo read -P 10 0xe000 0x1000 echo read -P 11 0xf800 0x400 echo read -P 0 0xfc00 0x400 echo read -P 11 0x10000 0x400 echo read -P 10 0x10400 0x400 echo read -P 11 0x11800 0x800 } verify_io | $QEMU_IO "$TEST_IMG" | _filter_qemu_io _check_test_img # success, all done echo "*** done" rm -f $seq.full status=0