Re: RCU recursion? (code inspection)

[Paul E. McKenney]

On Fri, May 01, 2015 at 03:18:28PM -0400, Rik van Riel wrote:
> Hi Paul,
> 
> While looking at synchronize_rcu(), I noticed that
> synchronize_rcu_expedited() calls synchronize_sched_expedited(),
> which can call synchronize_sched() when it is worried about
> the counter wrapping, which can call synchronize_sched_expedited()
> 
> The code is sufficiently convoluted that I am unsure whether this
> recursion can actually happen in practice, but I also did not spot
> anything that would stop it.

Hmmm...  Sounds like I should take a look!

							Thanx, Paul

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