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[Nikola Đipanov <ndipanov@xxxxxxxxxx>]

** Changed in: nova
       Status: In Progress => Invalid

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https://bugs.launchpad.net/bugs/1435748

Title:
  save method is getting called two times in 'attach' api

Status in OpenStack Compute (Nova):
  Invalid

Bug description:
  
  'save' method is getting called two times in 'attach' method of class 'DriverVolumeBlockDevice'.
  (https://github.com/openstack/nova/blob/master/nova/virt/block_device.py#L224)
  It is getting called from decorator 'update_db' and from attach method itself.

  There is no need of decorator 'update_db' for attach method as 'save' is already 
  called in attach method.

  Note: save method will not update db if there is no change in bdm
  object

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