Messages in this thread | | | Date | Wed, 13 Aug 2014 18:35:22 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH v5 tip/core/rcu 15/16] rcu: Make RCU-tasks wait for idle tasks |
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On Wed, Aug 13, 2014 at 07:43:32AM -0700, Paul E. McKenney wrote: > So the first three look OK to hook rcu_idle_enter() and rcu_idle_exit() > into, but the last two don't look so good. > > That said, if you are OK not tracing the stuff under stop_critical_timings(), > then I can use the RCU dyntick-idle state and not wake anything up.
Either way, Steve could easily whip up a debug thing that could validate that. Simply WARN whenever an __mcount happens when under rcu_idle.
And if we make these idle functions small enough that should not be a problem at all. [unhandled content-type:application/pgp-signature] | |