@utils.synchronized(('%s-%s' % (volume_id, f.__name__)), external=True)
def ldo_inner2(*_args, **_kwargs):
    return f(*_args, **_kwargs)
@utils.synchronized(('%s-%s' % (volume_id, f.__name__)), external=True)
def ldo_inner2(*_args, **_kwargs):
    return f(*_args, **_kwargs)