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[PULL 05/30] qemu-img: fix info --backing-chain --image-opts
From: |
Kevin Wolf |
Subject: |
[PULL 05/30] qemu-img: fix info --backing-chain --image-opts |
Date: |
Thu, 19 Dec 2019 18:24:16 +0100 |
From: Stefan Hajnoczi <address@hidden>
Only apply --image-opts to the topmost image when listing an entire
backing chain. It is incorrect to treat backing filenames as image
options. Assuming we have the backing chain t.IMGFMT.base <-
t.IMGFMT.mid <- t.IMGFMT, qemu-img info fails as follows:
$ qemu-img info --backing-chain --image-opts \
driver=qcow2,file.driver=file,file.filename=t.IMGFMT
qemu-img: Could not open 'TEST_DIR/t.IMGFMT.mid': Cannot find
device=TEST_DIR/t.IMGFMT.mid nor node_name=TEST_DIR/t.IMGFMT.mid
Signed-off-by: Stefan Hajnoczi <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Reviewed-by: Alberto Garcia <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
qemu-img.c | 3 ++
tests/qemu-iotests/279 | 57 ++++++++++++++++++++++++++++++++++++++
tests/qemu-iotests/279.out | 35 +++++++++++++++++++++++
tests/qemu-iotests/group | 1 +
4 files changed, 96 insertions(+)
create mode 100755 tests/qemu-iotests/279
create mode 100644 tests/qemu-iotests/279.out
diff --git a/qemu-img.c b/qemu-img.c
index 95a24b9762..6233b8ca56 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -2680,7 +2680,10 @@ static ImageInfoList *collect_image_info_list(bool
image_opts,
blk_unref(blk);
+ /* Clear parameters that only apply to the topmost image */
filename = fmt = NULL;
+ image_opts = false;
+
if (chain) {
if (info->has_full_backing_filename) {
filename = info->full_backing_filename;
diff --git a/tests/qemu-iotests/279 b/tests/qemu-iotests/279
new file mode 100755
index 0000000000..6682376808
--- /dev/null
+++ b/tests/qemu-iotests/279
@@ -0,0 +1,57 @@
+#!/usr/bin/env bash
+#
+# Test qemu-img --backing-chain --image-opts
+#
+# Copyright (C) 2019 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/>.
+#
+
+seq=$(basename "$0")
+echo "QA output created by $seq"
+
+status=1 # failure is the default!
+
+_cleanup()
+{
+ _cleanup_test_img
+ rm -f "$TEST_IMG.mid"
+}
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+
+# Backing files are required...
+_supported_fmt qcow qcow2 vmdk qed
+_supported_proto file
+_supported_os Linux
+
+TEST_IMG="$TEST_IMG.base" _make_test_img 64M
+TEST_IMG="$TEST_IMG.mid" _make_test_img -b "$TEST_IMG.base"
+_make_test_img -b "$TEST_IMG.mid"
+
+echo
+echo '== qemu-img info --backing-chain =='
+_img_info --backing-chain | _filter_img_info
+
+echo
+echo '== qemu-img info --backing-chain --image-opts =='
+TEST_IMG="driver=qcow2,file.driver=file,file.filename=$TEST_IMG" _img_info
--backing-chain --image-opts | _filter_img_info
+
+# success, all done
+echo "*** done"
+rm -f $seq.full
+status=0
diff --git a/tests/qemu-iotests/279.out b/tests/qemu-iotests/279.out
new file mode 100644
index 0000000000..f4dc6c69cb
--- /dev/null
+++ b/tests/qemu-iotests/279.out
@@ -0,0 +1,35 @@
+QA output created by 279
+Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=67108864
+Formatting 'TEST_DIR/t.IMGFMT.mid', fmt=IMGFMT size=67108864
backing_file=TEST_DIR/t.IMGFMT.base
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
backing_file=TEST_DIR/t.IMGFMT.mid
+
+== qemu-img info --backing-chain ==
+image: TEST_DIR/t.IMGFMT
+file format: IMGFMT
+virtual size: 64 MiB (67108864 bytes)
+backing file: TEST_DIR/t.IMGFMT.mid
+
+image: TEST_DIR/t.IMGFMT.mid
+file format: IMGFMT
+virtual size: 64 MiB (67108864 bytes)
+backing file: TEST_DIR/t.IMGFMT.base
+
+image: TEST_DIR/t.IMGFMT.base
+file format: IMGFMT
+virtual size: 64 MiB (67108864 bytes)
+
+== qemu-img info --backing-chain --image-opts ==
+image: TEST_DIR/t.IMGFMT
+file format: IMGFMT
+virtual size: 64 MiB (67108864 bytes)
+backing file: TEST_DIR/t.IMGFMT.mid
+
+image: TEST_DIR/t.IMGFMT.mid
+file format: IMGFMT
+virtual size: 64 MiB (67108864 bytes)
+backing file: TEST_DIR/t.IMGFMT.base
+
+image: TEST_DIR/t.IMGFMT.base
+file format: IMGFMT
+virtual size: 64 MiB (67108864 bytes)
+*** done
diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
index 6b10a6a762..eb57ddc72c 100644
--- a/tests/qemu-iotests/group
+++ b/tests/qemu-iotests/group
@@ -286,3 +286,4 @@
272 rw
273 backing quick
277 rw quick
+279 rw backing quick
--
2.20.1
- [PULL 00/30] Block layer patches, Kevin Wolf, 2019/12/19
- [PULL 02/30] iotests: Skip test 060 if it is not possible to create large files, Kevin Wolf, 2019/12/19
- [PULL 01/30] iotests: Provide a function for checking the creation of huge files, Kevin Wolf, 2019/12/19
- [PULL 03/30] iotests: Skip test 079 if it is not possible to create large files, Kevin Wolf, 2019/12/19
- [PULL 04/30] qapi: better document NVMe blockdev @device parameter, Kevin Wolf, 2019/12/19
- [PULL 06/30] block: Error out on image creation with conflicting size options, Kevin Wolf, 2019/12/19
- [PULL 05/30] qemu-img: fix info --backing-chain --image-opts,
Kevin Wolf <=
- [PULL 08/30] qcow2: Declare BDRV_REQ_NO_FALLBACK supported, Kevin Wolf, 2019/12/19
- [PULL 07/30] blockjob: Fix error message for negative speed, Kevin Wolf, 2019/12/19
- [PULL 09/30] iotests: Add qemu_io_log(), Kevin Wolf, 2019/12/19
- [PULL 10/30] iotests: Fix timeout in run_job(), Kevin Wolf, 2019/12/19
- [PULL 11/30] iotests: Support job-complete in run_job(), Kevin Wolf, 2019/12/19
- [PULL 12/30] qcow2: Use offset_into_cluster(), Kevin Wolf, 2019/12/19
- [PULL 14/30] iotests: Add more "_require_drivers" checks to the shell-based tests, Kevin Wolf, 2019/12/19
- [PULL 13/30] MAINTAINERS: fix qcow2-bitmap.c under Dirty Bitmaps header, Kevin Wolf, 2019/12/19
- [PULL 17/30] qcow2: Move error check of local_err near its assignment, Kevin Wolf, 2019/12/19
- [PULL 15/30] iotests/273: Filter format-specific information, Kevin Wolf, 2019/12/19