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Date: Fri, 5 Nov 2010 11:54:53 -0500 (CDT)
From: Christoph Lameter <cl@linux.com>
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To: Eric Dumazet <eric.dumazet@gmail.com>
cc: Andrew Morton <akpm@linux-foundation.org>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        Ingo Molnar <mingo@elte.hu>, Andi Kleen <andi@firstfloor.org>,
        Tejun Heo <tj@kernel.org>, Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH v2] irq: use per_cpu kstat_irqs
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On Fri, 5 Nov 2010, Eric Dumazet wrote:

>  static inline void kstat_incr_irqs_this_cpu(unsigned int irq,
>  					    struct irq_desc *desc)

desc is not used.

>  {
> -	kstat_this_cpu.irqs[irq]++;
> -	kstat_this_cpu.irqs_sum++;
> +	__this_cpu_inc(kstat.irqs[irq]);
> +	__this_cpu_inc(kstat.irqs_sum);
>  }