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migration: improve error reporting of block driver state name

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With blockdev, a BlockDriverState may not have a device name,
so using a node name is required as an alternative.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200827111606.1408275-2-berrange@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Daniel P. Berrangé 2020-08-27 12:16:00 +01:00 • committed by Dr. David Alan Gilbert
parent 9ba3b2baa1
commit aa8a926d3c
2 changed files with 8 additions and 8 deletions
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4
tests/qemu-iotests/267.out
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@ -81,11 +81,11 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) savevm snap0
Error: Device '' is writable but does not support snapshots
Error: Device 'file' is writable but does not support snapshots
(qemu) info snapshots
No available block device supports snapshots
(qemu) loadvm snap0
Error: Device '' is writable but does not support snapshots
Error: Device 'file' is writable but does not support snapshots
(qemu) quit
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728