Change in vdsm[master]: vm: Log device __repr__ instead of name

[Code Review]

From Dan Kenigsberg :

Dan Kenigsberg has submitted this change and it was merged.

Change subject: vm: Log device __repr__ instead of name
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vm: Log device __repr__ instead of name

When waiting for device removal, we assume that the device has a name,
but lease devices do not have a name. Replace name with the device
__repr__ implementation, providing more useful info, and supporting any
device.

Implement __repr__ for Drive and Interface devices so we get useful log
when waiting for removal of these devices. Other devices will have the
default __repr__ ("<ClassName object at 0x123456789>").

Here are example __repr__ output:

<Drive name=hda, type=file, path=/block_path at 0x7f1a62934bb0>
    <Interface name=, type=bridge, mac=macAddr at 0x7f1a6214a850>

Change-Id: I666e13cf3c58c980e4291b7903220a7551e10f85
Bug-Url: https://bugzilla.redhat.com/1408825
Signed-off-by: Nir Soffer 
---
M lib/vdsm/virt/vmdevices/network.py
M lib/vdsm/virt/vmdevices/storage.py
M vdsm/virt/vm.py
3 files changed, 15 insertions(+), 3 deletions(-)

Approvals:
  Nir Soffer: Verified; Passed CI tests
  Dan Kenigsberg: Looks good to me, approved

Objections:
  Jenkins CI: Failed CI tests