I looked in today's linux-next, and there seems to be only one initialization of this field, to true, and one test of this field. So perhaps the case for setting the field to false just isn't needed.
Oh sorry now I get what you mean! I thought about this -- and yes I decided to not add a bool false setting for the structure field given that the assumption is this would not be something dynamic, and data structure would be kzalloc()'d so by default they are 0.
What do you do about the test, though?
julia