createrepo failed with OSError: [Errno 26] Text file busy: '/repo/rhel-s390x-server-5/getPackage/repodata/locktest'

Issue

When createrepo is executed on Netapp CIFS share, it failed with the following error.

# createrepo -v -C --update /repo/rhel-s390x-server-5/getPackage
Traceback (most recent call last):
  File "/usr/share/createrepo/genpkgmetadata.py", line 291, in <module>
    main(sys.argv[1:])
  File "/usr/share/createrepo/genpkgmetadata.py", line 254, in main
    callback=MDCallBack())
  File "/usr/lib/python2.6/site-packages/createrepo/__init__.py", line 176, in __init__
    self._test_setup_dirs()
  File "/usr/lib/python2.6/site-packages/createrepo/__init__.py", line 233, in _test_setup_dirs
    os.unlink(direc + '/locktest')
OSError: [Errno 26] Text file busy: '/repo/rhel-s390x-server-5/getPackage/repodata/locktest'