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-rwxr-xr-xtests/qemu-iotests/258163
-rw-r--r--tests/qemu-iotests/258.out33
-rw-r--r--tests/qemu-iotests/group1
3 files changed, 197 insertions, 0 deletions
diff --git a/tests/qemu-iotests/258 b/tests/qemu-iotests/258
new file mode 100755
index 0000000..b84cf02
--- /dev/null
+++ b/tests/qemu-iotests/258
@@ -0,0 +1,163 @@
+#!/usr/bin/env python
+#
+# Very specific tests for adjacent commit/stream block jobs
+#
+# 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/>.
+#
+# Creator/Owner: Max Reitz <mreitz@redhat.com>
+
+import iotests
+from iotests import log, qemu_img, qemu_io_silent, \
+ filter_qmp_testfiles, filter_qmp_imgfmt
+
+# Need backing file and change-backing-file support
+iotests.verify_image_format(supported_fmts=['qcow2', 'qed'])
+iotests.verify_platform(['linux'])
+
+
+# Returns a node for blockdev-add
+def node(node_name, path, backing=None, fmt=None, throttle=None):
+ if fmt is None:
+ fmt = iotests.imgfmt
+
+ res = {
+ 'node-name': node_name,
+ 'driver': fmt,
+ 'file': {
+ 'driver': 'file',
+ 'filename': path
+ }
+ }
+
+ if backing is not None:
+ res['backing'] = backing
+
+ if throttle:
+ res['file'] = {
+ 'driver': 'throttle',
+ 'throttle-group': throttle,
+ 'file': res['file']
+ }
+
+ return res
+
+# Finds a node in the debug block graph
+def find_graph_node(graph, node_id):
+ return next(node for node in graph['nodes'] if node['id'] == node_id)
+
+
+def test_concurrent_finish(write_to_stream_node):
+ log('')
+ log('=== Commit and stream finish concurrently (letting %s write) ===' % \
+ ('stream' if write_to_stream_node else 'commit'))
+ log('')
+
+ # All chosen in such a way that when the commit job wants to
+ # finish, it polls and thus makes stream finish concurrently --
+ # and the other way around, depending on whether the commit job
+ # is finalized before stream completes or not.
+
+ with iotests.FilePath('node4.img') as node4_path, \
+ iotests.FilePath('node3.img') as node3_path, \
+ iotests.FilePath('node2.img') as node2_path, \
+ iotests.FilePath('node1.img') as node1_path, \
+ iotests.FilePath('node0.img') as node0_path, \
+ iotests.VM() as vm:
+
+ # It is important to use raw for the base layer (so that
+ # permissions are just handed through to the protocol layer)
+ assert qemu_img('create', '-f', 'raw', node0_path, '64M') == 0
+
+ stream_throttle=None
+ commit_throttle=None
+
+ for path in [node1_path, node2_path, node3_path, node4_path]:
+ assert qemu_img('create', '-f', iotests.imgfmt, path, '64M') == 0
+
+ if write_to_stream_node:
+ # This is what (most of the time) makes commit finish
+ # earlier and then pull in stream
+ assert qemu_io_silent(node2_path,
+ '-c', 'write %iK 64K' % (65536 - 192),
+ '-c', 'write %iK 64K' % (65536 - 64)) == 0
+
+ stream_throttle='tg'
+ else:
+ # And this makes stream finish earlier
+ assert qemu_io_silent(node1_path,
+ '-c', 'write %iK 64K' % (65536 - 64)) == 0
+
+ commit_throttle='tg'
+
+ vm.launch()
+
+ vm.qmp_log('object-add',
+ qom_type='throttle-group',
+ id='tg',
+ props={
+ 'x-iops-write': 1,
+ 'x-iops-write-max': 1
+ })
+
+ vm.qmp_log('blockdev-add',
+ filters=[filter_qmp_testfiles, filter_qmp_imgfmt],
+ **node('node4', node4_path, throttle=stream_throttle,
+ backing=node('node3', node3_path,
+ backing=node('node2', node2_path,
+ backing=node('node1', node1_path,
+ backing=node('node0', node0_path, throttle=commit_throttle,
+ fmt='raw'))))))
+
+ vm.qmp_log('block-commit',
+ job_id='commit',
+ device='node4',
+ filter_node_name='commit-filter',
+ top_node='node1',
+ base_node='node0',
+ auto_finalize=False)
+
+ vm.qmp_log('block-stream',
+ job_id='stream',
+ device='node3',
+ base_node='commit-filter')
+
+ if write_to_stream_node:
+ vm.run_job('commit', auto_finalize=False, auto_dismiss=True)
+ vm.run_job('stream', auto_finalize=True, auto_dismiss=True)
+ else:
+ # No, the jobs do not really finish concurrently here,
+ # the stream job does complete strictly before commit.
+ # But still, this is close enough for what we want to
+ # test.
+ vm.run_job('stream', auto_finalize=True, auto_dismiss=True)
+ vm.run_job('commit', auto_finalize=False, auto_dismiss=True)
+
+ # Assert that the backing node of node3 is node 0 now
+ graph = vm.qmp('x-debug-query-block-graph')['return']
+ for edge in graph['edges']:
+ if edge['name'] == 'backing' and \
+ find_graph_node(graph, edge['parent'])['name'] == 'node3':
+ assert find_graph_node(graph, edge['child'])['name'] == 'node0'
+ break
+
+
+def main():
+ log('Running tests:')
+ test_concurrent_finish(True)
+ test_concurrent_finish(False)
+
+if __name__ == '__main__':
+ main()
diff --git a/tests/qemu-iotests/258.out b/tests/qemu-iotests/258.out
new file mode 100644
index 0000000..ce6e9ba
--- /dev/null
+++ b/tests/qemu-iotests/258.out
@@ -0,0 +1,33 @@
+Running tests:
+
+=== Commit and stream finish concurrently (letting stream write) ===
+
+{"execute": "object-add", "arguments": {"id": "tg", "props": {"x-iops-write": 1, "x-iops-write-max": 1}, "qom-type": "throttle-group"}}
+{"return": {}}
+{"execute": "blockdev-add", "arguments": {"backing": {"backing": {"backing": {"backing": {"driver": "raw", "file": {"driver": "file", "filename": "TEST_DIR/PID-node0.img"}, "node-name": "node0"}, "driver": "IMGFMT", "file": {"driver": "file", "filename": "TEST_DIR/PID-node1.img"}, "node-name": "node1"}, "driver": "IMGFMT", "file": {"driver": "file", "filename": "TEST_DIR/PID-node2.img"}, "node-name": "node2"}, "driver": "IMGFMT", "file": {"driver": "file", "filename": "TEST_DIR/PID-node3.img"}, "node-name": "node3"}, "driver": "IMGFMT", "file": {"driver": "throttle", "file": {"driver": "file", "filename": "TEST_DIR/PID-node4.img"}, "throttle-group": "tg"}, "node-name": "node4"}}
+{"return": {}}
+{"execute": "block-commit", "arguments": {"auto-finalize": false, "base-node": "node0", "device": "node4", "filter-node-name": "commit-filter", "job-id": "commit", "top-node": "node1"}}
+{"return": {}}
+{"execute": "block-stream", "arguments": {"base-node": "commit-filter", "device": "node3", "job-id": "stream"}}
+{"return": {}}
+{"execute": "job-finalize", "arguments": {"id": "commit"}}
+{"return": {}}
+{"data": {"id": "commit", "type": "commit"}, "event": "BLOCK_JOB_PENDING", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
+{"data": {"device": "commit", "len": 67108864, "offset": 67108864, "speed": 0, "type": "commit"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
+{"data": {"device": "stream", "len": 67108864, "offset": 67108864, "speed": 0, "type": "stream"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
+
+=== Commit and stream finish concurrently (letting commit write) ===
+
+{"execute": "object-add", "arguments": {"id": "tg", "props": {"x-iops-write": 1, "x-iops-write-max": 1}, "qom-type": "throttle-group"}}
+{"return": {}}
+{"execute": "blockdev-add", "arguments": {"backing": {"backing": {"backing": {"backing": {"driver": "raw", "file": {"driver": "throttle", "file": {"driver": "file", "filename": "TEST_DIR/PID-node0.img"}, "throttle-group": "tg"}, "node-name": "node0"}, "driver": "IMGFMT", "file": {"driver": "file", "filename": "TEST_DIR/PID-node1.img"}, "node-name": "node1"}, "driver": "IMGFMT", "file": {"driver": "file", "filename": "TEST_DIR/PID-node2.img"}, "node-name": "node2"}, "driver": "IMGFMT", "file": {"driver": "file", "filename": "TEST_DIR/PID-node3.img"}, "node-name": "node3"}, "driver": "IMGFMT", "file": {"driver": "file", "filename": "TEST_DIR/PID-node4.img"}, "node-name": "node4"}}
+{"return": {}}
+{"execute": "block-commit", "arguments": {"auto-finalize": false, "base-node": "node0", "device": "node4", "filter-node-name": "commit-filter", "job-id": "commit", "top-node": "node1"}}
+{"return": {}}
+{"execute": "block-stream", "arguments": {"base-node": "commit-filter", "device": "node3", "job-id": "stream"}}
+{"return": {}}
+{"data": {"device": "stream", "len": 67108864, "offset": 67108864, "speed": 0, "type": "stream"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
+{"execute": "job-finalize", "arguments": {"id": "commit"}}
+{"return": {}}
+{"data": {"id": "commit", "type": "commit"}, "event": "BLOCK_JOB_PENDING", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
+{"data": {"device": "commit", "len": 67108864, "offset": 67108864, "speed": 0, "type": "commit"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
index 71ba3c0..5a37839 100644
--- a/tests/qemu-iotests/group
+++ b/tests/qemu-iotests/group
@@ -271,4 +271,5 @@
254 rw backing quick
255 rw quick
256 rw quick
+258 rw quick
262 rw quick migration