linux-kernel - Re: [PATCH] genirq: Set initial default irq affinity to just CPU0

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Message-Id: <4CC6D7AE-2970-47AE-8473-9013A613F837@kernel.crashing.org>
Date:	Mon, 27 Oct 2008 15:45:59 -0500
From:	Kumar Gala <galak@...nel.crashing.org>
To:	benh@...nel.crashing.org
Cc:	David Miller <davem@...emloft.net>, akpm@...l.org,
	linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org,
	torvalds@...l.org, maxk@...lcomm.com, tglx@...utronix.de
Subject: Re: [PATCH] genirq: Set initial default irq affinity to just CPU0


On Oct 27, 2008, at 3:27 PM, Benjamin Herrenschmidt wrote:

> On Mon, 2008-10-27 at 08:43 -0500, Kumar Gala wrote:
>>
>> While we have the comment the code appears not to really follow it.
>> We appear to write 1 << hard_smp_processor_id().
>
> That code is called by each CPU that gets onlined and OR's it's
> bit in the mask.

ahh, I see now.

- k
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