Re: [PATCH 4/4] nohz: New option to force all CPUs in full dynticksrange

From: Paul E. McKenney
Date: Thu Apr 11 2013 - 11:41:59 EST


On Thu, Apr 11, 2013 at 05:19:59PM +0200, Frederic Weisbecker wrote:
> On Mon, Apr 08, 2013 at 02:57:18PM +0000, Christoph Lameter wrote:
> > I think we could simplify things quite a bit if we either
> >
> > 1. Add any cpus specified with nohz_full/extended=xxx to
> > rcu_nocb. No check is then necessary anymore.
>
> Yeah in the long term we probably want that indeed.

Or just build with RCU_NOCB_CPU_ALL=y to unconditionally offload all
the CPUs when using nohz_extended.

Thanx, Paul

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