Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> wrote: > Only on Alpha. Otherwise only a volatile access. Whilst that is true, it's the principle of the thing. The extra barrier shouldn't be emitted on Alpha. If Alpha's no longer important, then can we scrap smp_read_barrier_depends()? My point is that some of these rcu_dereference*()'s are unnecessary. If there're required for correctness tracking purposes, fine; but can we have a macro that is just a dummy for the purpose of stripping the pointer Sparse annotation? One that doesn't invoke rcu_dereference_raw() and interpolate a barrier, pretend or otherwise, when there's no second reference to order against. David -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
