linux-kernel - Re: [PATCH v2] irq: use per_cpu kstat

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Message-ID: <4CD43497.1020907@kernel.org>
Date:	Fri, 05 Nov 2010 17:45:11 +0100
From:	Tejun Heo <tj@...nel.org>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>, Andi Kleen <andi@...stfloor.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH v2] irq: use per_cpu kstat_irqs

Hello,

On 11/05/2010 05:06 PM, Eric Dumazet wrote:
> V2: support for !CONFIG_SPARSE_IRQ
>     No white space changes.
> 
> Question : Is dynamic percpu allocator ready at this stage for all
> arches ? The need is NR_IRQS*4 bytes of percpu memory for 
> !CONFIG_SPARSE_IRQ

The earliest is early_irq_init(), right?  If so, percpu allocator is
up by then on all archs.

Thanks.

-- 
tejun
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