Re: [PATCH] x86-32: Allocate irq stacks seperate from percpu area

[Peter Zijlstra]

On Wed, 2010-10-27 at 08:07 +0200, Eric Dumazet wrote:
> > -     irqctx = &per_cpu(hardirq_stack, cpu);
> > +     irqctx = (union irq_ctx *)__get_free_pages(THREAD_FLAGS, THREAD_ORDER);
> 
> Hmm, then we lose NUMA affinity for stacks. 

I guess we could use:

  alloc_pages_node(cpu_to_node(cpu), THREAD_FLAGS, THREAD_ORDER);


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