Re: [PATCH tip/core/rcu 18/18] rcu: Better hotplug handling for synchronize_sched_expedited()

[Peter Zijlstra]

On Wed, Oct 07, 2015 at 09:26:53AM -0700, Paul E. McKenney wrote:
> On Wed, Oct 07, 2015 at 04:26:27PM +0200, Peter Zijlstra wrote:

> Indeed, that approach looks better than moving rcu_note_context_switch(),
> which probably results in deadlocks.  I will update my patch accordingly.

Yeah, calling rcu_note_context_switch() under the rq->lock is asking for
trouble we don't need.

Thanks!
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