* Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> wrote: > Second cut of "big hammer" expedited RCU grace periods, but only > for rcu_bh. This creates another softirq vector, so that entering > this softirq vector will have forced an rcu_bh quiescent state (as > noted by Dave Miller). Use smp_call_function() to invoke > raise_softirq() on all CPUs in order to cause this to happen. > Track the CPUs that have passed through a quiescent state (or gone > offline) with a cpumask. hm, i'm still asking whether doing this would be simpler via a reschedule vector - which not only is an existing facility but also forces all RCU domains through a quiescent state - not just bh-RCU participants. Triggering a new softirq is in no way simpler that doing an SMP cross-call - in fact softirqs are a finite resource so using some other facility would be preferred. Am i missing something? Ingo -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
