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b717be71dc
qemu 2.9 returns an extra layer in the backing data if a block job is active. Add a test case to see whether our code properly detects and ignores such layer. The test data was prepared by creating a backing chain of qcow2 images (with qemu-img and with libvirt's snapshot feature). One of the layers was then merged back by doing a block-commit: virsh blockcommit VM hda --top /var/lib/libvirt/images/b and then a block-copy job was started and kept in synchronized phase: virsh blockcopy VM hda /tmp/tgt.img --transient job Reviewed-by: Eric Blake <eblake@redhat.com>
27 lines
820 B
Plaintext
27 lines
820 B
Plaintext
drive-ide0-0-0
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filename : '/var/lib/libvirt/images/d.1499152698'
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format node : '#block179'
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format drv : 'qcow2'
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storage node: '#block042'
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storage drv : 'file'
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filename : '/var/lib/libvirt/images/d.1499152668'
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format node : '#block312'
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format drv : 'qcow2'
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storage node: '#block259'
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storage drv : 'file'
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filename : '/var/lib/libvirt/images/d'
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format node : '#block551'
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format drv : 'qcow2'
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storage node: '#block449'
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storage drv : 'file'
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filename : '/var/lib/libvirt/images/c'
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format node : '#block717'
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format drv : 'qcow2'
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storage node: '#block618'
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storage drv : 'file'
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filename : '/var/lib/libvirt/images/a'
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format node : '#block901'
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format drv : 'raw'
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storage node: '#block846'
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storage drv : 'file'
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