On Thu, 2012-09-06 at 15:46 +0200, Peter Zijlstra wrote: > On Thu, 2012-08-30 at 11:18 -0700, Paul E. McKenney wrote: > > + get_online_cpus(); > > + for_each_online_cpu(cpu) > > + for_each_rcu_flavor(rsp) > > + smp_call_function_single(cpu, rcu_oom_notify_cpu, > > + rsp, 1); > > + put_online_cpus(); > > I guess blasting IPIs around is better than OOM but still.. do you > really need to wait for each cpu individually, or would a construct > using on_each_cpu() be possible, or better yet, on_each_cpu_cond()?
Also, what about having the rcu_oom_notify_cpu handler do the for_each_rcu_flavor() and not send an IPI multiple times to a single CPU? -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
