From nobody Wed Oct 29 20:49:54 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (208.118.235.17 [208.118.235.17]) by mx.zohomail.com with SMTPS id 1525890525078197.21955917437947; Wed, 9 May 2018 11:28:45 -0700 (PDT) Received: from localhost ([::1]:58369 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fGTpK-0007KL-Ay for importer@patchew.org; Wed, 09 May 2018 14:28:34 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56285) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fGThF-0007Zj-Rb for qemu-devel@nongnu.org; Wed, 09 May 2018 14:20:15 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fGThE-0003T0-1r for qemu-devel@nongnu.org; Wed, 09 May 2018 14:20:13 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:40006 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fGThB-0003Pn-2b; Wed, 09 May 2018 14:20:09 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id AB87642709C9; Wed, 9 May 2018 18:20:08 +0000 (UTC) Received: from localhost (unknown [10.40.205.23]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 57A5F215CDA7; Wed, 9 May 2018 18:20:08 +0000 (UTC) From: Max Reitz To: qemu-block@nongnu.org Date: Wed, 9 May 2018 20:20:02 +0200 Message-Id: <20180509182002.8044-3-mreitz@redhat.com> In-Reply-To: <20180509182002.8044-1-mreitz@redhat.com> References: <20180509182002.8044-1-mreitz@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.7]); Wed, 09 May 2018 18:20:08 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.7]); Wed, 09 May 2018 18:20:08 +0000 (UTC) for IP:'10.11.54.6' DOMAIN:'int-mx06.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'mreitz@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH v2 2/2] iotests: Add test for rebasing with relative paths X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , qemu-stable@nongnu.org, qemu-devel@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Signed-off-by: Max Reitz Reviewed-by: Eric Blake --- tests/qemu-iotests/024 | 82 ++++++++++++++++++++++++++++++++++++++++++= ++-- tests/qemu-iotests/024.out | 30 +++++++++++++++++ 2 files changed, 109 insertions(+), 3 deletions(-) diff --git a/tests/qemu-iotests/024 b/tests/qemu-iotests/024 index e0d77ce2f5..4071ed6093 100755 --- a/tests/qemu-iotests/024 +++ b/tests/qemu-iotests/024 @@ -29,9 +29,14 @@ status=3D1 # failure is the default! =20 _cleanup() { - _cleanup_test_img - rm -f "$TEST_DIR/t.$IMGFMT.base_old" - rm -f "$TEST_DIR/t.$IMGFMT.base_new" + _cleanup_test_img + rm -f "$TEST_DIR/t.$IMGFMT.base_old" + rm -f "$TEST_DIR/t.$IMGFMT.base_new" + + rm -f "$TEST_DIR/subdir/t.$IMGFMT" + rm -f "$TEST_DIR/subdir/t.$IMGFMT.base_old" + rm -f "$TEST_DIR/subdir/t.$IMGFMT.base_new" + rmdir "$TEST_DIR/subdir" 2> /dev/null } trap "_cleanup; exit \$status" 0 1 2 3 15 =20 @@ -123,6 +128,77 @@ io_pattern readv $((13 * CLUSTER_SIZE)) $CLUSTER_SIZE = 0 1 0x00 io_pattern readv $((14 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x11 io_pattern readv $((15 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x00 =20 +echo +echo "=3D=3D=3D Test rebase in a subdirectory of the working directory =3D= =3D=3D" +echo + +# Clean up the old images beforehand so they do not interfere with +# this test +_cleanup + +mkdir "$TEST_DIR/subdir" + +# Relative to the overlay +BASE_OLD_OREL=3D"t.$IMGFMT.base_old" +BASE_NEW_OREL=3D"t.$IMGFMT.base_new" + +# Relative to $TEST_DIR (which is going to be our working directory) +OVERLAY_WREL=3D"subdir/t.$IMGFMT" + +BASE_OLD=3D"$TEST_DIR/subdir/$BASE_OLD_OREL" +BASE_NEW=3D"$TEST_DIR/subdir/$BASE_NEW_OREL" +OVERLAY=3D"$TEST_DIR/$OVERLAY_WREL" + +# Test done here: +# +# Backing (old): 11 11 -- 11 +# Backing (new): -- 22 22 11 +# Overlay: -- -- -- -- +# +# Rebasing works, we have verified that above. Here, we just want to +# see that rebasing is done for the correct target backing file. + +TEST_IMG=3D$BASE_OLD _make_test_img 1M +TEST_IMG=3D$BASE_NEW _make_test_img 1M +TEST_IMG=3D$OVERLAY _make_test_img -b "$BASE_OLD_OREL" 1M + +echo + +$QEMU_IO "$BASE_OLD" \ + -c "write -P 0x11 $((0 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ + -c "write -P 0x11 $((3 * CLUSTER_SIZE)) $((1 * CLUSTER_SIZE))" \ + | _filter_qemu_io + +$QEMU_IO "$BASE_NEW" \ + -c "write -P 0x22 $((1 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ + -c "write -P 0x11 $((3 * CLUSTER_SIZE)) $((1 * CLUSTER_SIZE))" \ + | _filter_qemu_io + +echo + +pushd "$TEST_DIR" >/dev/null +$QEMU_IMG rebase -f "$IMGFMT" -b "$BASE_NEW_OREL" "$OVERLAY_WREL" +popd >/dev/null + +# Verify the backing path is correct +TEST_IMG=3D$OVERLAY _img_info | grep '^backing file' + +echo + +# Verify the data is correct +$QEMU_IO "$OVERLAY" \ + -c "read -P 0x11 $((0 * CLUSTER_SIZE)) $CLUSTER_SIZE" \ + -c "read -P 0x11 $((1 * CLUSTER_SIZE)) $CLUSTER_SIZE" \ + -c "read -P 0x00 $((2 * CLUSTER_SIZE)) $CLUSTER_SIZE" \ + -c "read -P 0x11 $((3 * CLUSTER_SIZE)) $CLUSTER_SIZE" \ + | _filter_qemu_io + +echo + +# Verify that cluster #3 is not allocated (because it is the same in +# $BASE_OLD and $BASE_NEW) +$QEMU_IMG map "$OVERLAY" | _filter_qemu_img_map + =20 # success, all done echo "*** done" diff --git a/tests/qemu-iotests/024.out b/tests/qemu-iotests/024.out index 33cfaf5cfc..024dc786b3 100644 --- a/tests/qemu-iotests/024.out +++ b/tests/qemu-iotests/024.out @@ -141,4 +141,34 @@ read 65536/65536 bytes at offset 917504 =3D=3D=3D IO: pattern 0x00 read 65536/65536 bytes at offset 983040 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +=3D=3D=3D Test rebase in a subdirectory of the working directory =3D=3D=3D + +Formatting 'TEST_DIR/subdir/t.IMGFMT.base_old', fmt=3DIMGFMT size=3D1048576 +Formatting 'TEST_DIR/subdir/t.IMGFMT.base_new', fmt=3DIMGFMT size=3D1048576 +Formatting 'TEST_DIR/subdir/t.IMGFMT', fmt=3DIMGFMT size=3D1048576 backing= _file=3Dt.IMGFMT.base_old + +wrote 131072/131072 bytes at offset 0 +128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 65536/65536 bytes at offset 196608 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 131072/131072 bytes at offset 65536 +128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 65536/65536 bytes at offset 196608 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +backing file: t.IMGFMT.base_new (actual path: TEST_DIR/subdir/t.IMGFMT.bas= e_new) + +read 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +read 65536/65536 bytes at offset 65536 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +read 65536/65536 bytes at offset 131072 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +read 65536/65536 bytes at offset 196608 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +Offset Length File +0 0x30000 TEST_DIR/subdir/t.IMGFMT +0x30000 0x10000 TEST_DIR/subdir/t.IMGFMT.base_new *** done --=20 2.14.3