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iotests: 085: Avoid image locking conflict

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In the case where we test the expected error when a blockdev-snapshot
target already has a backing image, the backing chain is opened multiple
times. This will be a problem when we use image locking, so use a
different backing file that is not already open.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Fam Zheng 2017-05-03 00:35:45 +08:00 • committed by Kevin Wolf
parent 4797aeabdc
commit ecffa63421
2 changed files with 21 additions and 15 deletions
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3
tests/qemu-iotests/085.out
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@ -78,7 +78,8 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/
=== Invalid command - snapshot node has a backing image ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/12-snapshot-v0.IMGFMT
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base
{"return": {}}
{"error": {"class": "GenericError", "desc": "The snapshot already has a backing image"}}