Revision a9e0c397 lib/backend.py

b/lib/backend.py
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    return False
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  new_bdevs = [_RecursiveFindBD(disk) for disk in new_cdevs]
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  if new_bdevs.count(None) > 0:
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    logger.Error("Can't find new device(s) to add")
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    logger.Error("Can't find new device(s) to add: %s:%s" %
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                 (new_bdevs, new_cdevs))
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    return False
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  parent_bdev.AddChildren(new_bdevs)
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  return True
......
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  """
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  parent_bdev = _RecursiveFindBD(parent_cdev)
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  if parent_bdev is None:
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    logger.Error("Can't find parent in remove children: %s" % parent_cdev)
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    return False
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  new_bdevs = [_RecursiveFindBD(disk) for disk in new_cdevs]
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  if new_bdevs.count(None) > 0:
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    logger.Error("Can't find some devices while doing remove children: %s %s" %
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                 (new_cdevs, new_bdevs))
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    return False
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  parent_bdev.RemoveChildren(new_bdevs)
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  return True

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