Re: [this_cpu_xx V5 19/19] SLUB: Experimental new fastpath w/ointerrupt disable

[Mathieu Desnoyers]

* Christoph Lameter (cl@xxxxxxxxxxxxxxxxxxxx) wrote:
> On Thu, 8 Oct 2009, Peter Zijlstra wrote:
> 
> > > 	preempt_enable_no_sched()
> >
> > NACK, delaying the reschedule is not an option
> 
> I ended up just doing a preempt_disable() at the beginning and a
> preempt_disable() at the end. That should be easily reviewable.
> 

Then how do you re-enable preemption in the slow path when you need to
block ?

Mathieu


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Mathieu Desnoyers
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