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Viewing changes to charmhelpers/contrib/storage/linux/loopback.py

  • Committer: Jorge Niedbalski
  • Date: 2015-11-17 17:26:08 UTC
  • Revision ID: jorge.niedbalski@canonical.com-20151117172608-xrbq7tn2jlb0y286
Backport of fix for LP: #1510666.

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Lines of Context:
charmhelpers/contrib/storage/linux/loopback.py
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        check_call(cmd)
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    return create_loopback(path)
 
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def is_mapped_loopback_device(device):
 
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    """
 
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    Checks if a given device name is an existing/mapped loopback device.
 
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    :param device: str: Full path to the device (eg, /dev/loop1).
 
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    :returns: str: Path to the backing file if is a loopback device
 
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    empty string otherwise
 
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    """
 
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    return loopback_devices().get(device, "")