Re: [RFC patch 2/5] smpboot: Provide infrastructure for percpuhotplug threads

[Paul E. McKenney]

On Wed, Jun 13, 2012 at 09:02:55PM +0200, Thomas Gleixner wrote:
> On Wed, 13 Jun 2012, Paul E. McKenney wrote:
> > On Wed, Jun 13, 2012 at 11:00:54AM -0000, Thomas Gleixner wrote:
> > >  	/* Now call notifier in preparation. */
> > >  	cpu_notify(CPU_ONLINE | mod, hcpu);
> > > +	smpboot_unpark_threads(cpu);
> > 
> > OK, RCU must use the lower-level interfaces, given that one of
> > then CPU_ONLINE notifiers might invoke synchronize_rcu().
> 
> We can start the threads before the notifiers. There is no
> restriction.

Sounds very good in both cases!

							Thanx, Paul

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