Re: [PATCH tip/core/rcu 1/6] rcu: Update documentation to cover call_srcu() and srcu_barrier().

Josh Triplett
2012-06-15T20:19:28Z

On Fri, Jun 15, 2012 at 11:57:49AM -0700, Paul E. McKenney wrote:
> --- a/Documentation/RCU/rcubarrier.txt
> +++ b/Documentation/RCU/rcubarrier.txt
> @@ -261,8 +261,10 @@ Answers to Quick Quizzes
>
> Quick Quiz #1: Why is there no srcu_barrier()?
>
> -Answer: Since there is no call_srcu(), there can be no outstanding SRCU
> - callbacks. Therefore, there is no need to wait for them.
> +Answer: There really is an srcu_barrier() now that there is a call_srcu().
> + Before call_srcu(), there were no SRCU callbacks, and there was
> + therefore no need to wait for them, and therefore there was
> + no srcu_barrier().

I don't think it makes sense to leave this question in its current form
and just change the answer. It seems like a trick question now. :)

I'd suggest just dropping the question and renumbering the remaining
questions.

- Josh Triplett