On Fri, May 14, 2010 at 09:47:05AM +0200, Peter Zijlstra wrote:
quoted text
> On Thu, 2010-05-13 at 22:48 +0200, Frederic Weisbecker wrote:
> > +       head = find_swevent_head(cpuctx, event->attr.type,
> > +                                event->attr.config, event); 
> 
> might as well only pass event and have the function do those derefs.


Yeah, why not. But now that I see we can optimize the scheduling
side with rcu_dereference_protected, it's probably better to keep
the two derefs protected.

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