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Description of problem:
When trying to create a fence_xvm device with name "myfence" on a new cluster with luci, luci interface displays "Error creating fence fence_xvm device".  

Traceback found in /var/log/luci/luci.log:
17:49:30,930 ERROR [luci.widget_validators.validate_fence] Error validating fence device fence_xvm
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/luci/widget_validators/validate_fence.py", line 633, in validate_fencedevice
    ret = FD_VALIDATE[fence_agent](fencedev, fence_name, **kw)
TypeError: val_noop_fd() takes exactly 1 non-keyword argument (2 given)


Version-Release number of selected component (if applicable):
luci-0.22.2-1.el6.x86_64
fence-virt-0.2.1-4.el6.x86_64

How reproducible:
Repeatable.

Steps to Reproduce:
1. Install Red Hat Enterprise Linux 6 Host (dom0), and 2x Red Hat Enterprise Linux 5 virtual guests (domU) in KVM.
2. Install luci on the RHEL6 host (dom0), and create an empty 2 node cluster on the 2 rhel5 guests.
3. Attempt to create fence_xvm device through luci interface (on RHEL6 dom0).

Actual results:
Error in Luci interface: "Error creating fence fence_xvm device"

Expected results:
Creates shared fence_xvm fence device.

Additional info:

This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release.  Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release.  This request is not yet committed for
inclusion.

http://git.fedorahosted.org/git?p=luci.git;a=patch;h=fb3176c6263664c2d081331ae808c86415a06c36

Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.