linux-kernel - Re: A problem with percpu variable cpu

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Message-ID: <CAOe6JY1_dYGCK2=+EHARz5mTm=KCgWynnJjA9SuEHfj+Z0xjwA@mail.gmail.com>
Date:	Tue, 21 Feb 2012 20:41:32 +0800
From:	Tao Jiang <jiangtao.jit@...il.com>
To:	Cong Wang <xiyou.wangcong@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: A problem with percpu variable cpu_number

Hi Cong Wang:

I read the file vmlinux.lds.S in arch/x86/kernel
section .data..percpu is between .init.data and .init.end
Is that means these percpu variables will be freed after init?

Thank you.


2012/2/20 Cong Wang <xiyou.wangcong@...il.com>:
> On 02/20/2012 07:04 PM, Tao Jiang wrote:
>>
>>
>> I read the macor DEFINE_PER_CPU
>> it's decorated by some percpu attributes
>> it will be put in section .data..percpu in init section
>
>
> .data..percpu is not .init section, the .init sections should all have
> ".init.*" names.
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