qemu-iotests: add a simple test for write_zeroes

Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>

tests/qemu-iotests/033

+#!/bin/bash
+#
+# Test aligned and misaligned write zeroes operations.
+#
+# Copyright (C) 2012 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=pbonzini@redhat.com
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+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 generic
+_supported_proto generic
+_supported_os Linux
+
+
+size=128M
+_make_test_img $size
+
+echo
+echo "== preparing image =="
+$QEMU_IO -c "write -P 0xa 0x200 0x400" $TEST_IMG | _filter_qemu_io
+$QEMU_IO -c "write -P 0xa 0x20000 0x600" $TEST_IMG | _filter_qemu_io
+$QEMU_IO -c "write -z 0x400 0x20000" $TEST_IMG | _filter_qemu_io
+
+echo
+echo "== verifying patterns (1) =="
+$QEMU_IO -c "read -P 0xa 0x200 0x200" $TEST_IMG | _filter_qemu_io
+$QEMU_IO -c "read -P 0x0 0x400 0x20000" $TEST_IMG | _filter_qemu_io
+$QEMU_IO -c "read -P 0xa 0x20400 0x200" $TEST_IMG | _filter_qemu_io
+
+echo
+echo "== rewriting zeroes =="
+$QEMU_IO -c "write -P 0xb 0x10000 0x10000" $TEST_IMG | _filter_qemu_io
+$QEMU_IO -c "write -z 0x10000 0x10000" $TEST_IMG | _filter_qemu_io
+
+echo
+echo "== verifying patterns (2) =="
+$QEMU_IO -c "read -P 0x0 0x400 0x20000" $TEST_IMG | _filter_qemu_io
+
+# success, all done
+echo "*** done"
+rm -f $seq.full
+status=0

tests/qemu-iotests/033.out

+QA output created by 033
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 
+
+== preparing image ==
+wrote 1024/1024 bytes at offset 512
+1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 1536/1536 bytes at offset 131072
+2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 131072/131072 bytes at offset 1024
+128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== verifying patterns (1) ==
+read 512/512 bytes at offset 512
+512.000000 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 131072/131072 bytes at offset 1024
+128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 512/512 bytes at offset 132096
+512.000000 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== rewriting zeroes ==
+wrote 65536/65536 bytes at offset 65536
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 65536/65536 bytes at offset 65536
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== verifying patterns (2) ==
+read 131072/131072 bytes at offset 1024
+128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+*** done

tests/qemu-iotests/group

@@ -39,3 +39,4 @@
 030 rw auto
 031 rw auto quick
 032 rw auto
+033 rw auto