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Re: [PATCH V2 15/16] MIPS: Loongson 3: Add CPU Hotplug support.

from [Yong Zhang] [Permanent Link][Original]
To: Huacai Chen <chenhuacai@gmail.com>
Subject: Re: [PATCH V2 15/16] MIPS: Loongson 3: Add CPU Hotplug support.
From: Yong Zhang <yong.zhang@windriver.com>
Date: Tue, 19 Jun 2012 17:32:00 +0800
Cc: Ralf Baechle <ralf@linux-mips.org>, <linux-mips@linux-mips.org>, Fuxin Zhang <zhangfx@lemote.com>, Zhangjin Wu <wuzhangjin@gmail.com>, Huacai Chen <chenhc@lemote.com>, Hongliang Tao <taohl@lemote.com>, Hua Yan <yanh@lemote.com>
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Reply-to: Yong Zhang <yong.zhang@windriver.com>
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User-agent: Mutt/1.5.21 (2010-09-15) 
On Tue, Jun 19, 2012 at 02:50:23PM +0800, Huacai Chen wrote:
> +#ifdef CONFIG_HOTPLUG_CPU
> +
> +static DEFINE_SPINLOCK(smp_reserve_lock);

Do you really need this lock?

Thanks,
Yong
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