netdev - Re: How about the order of Network stack initialize

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Date:	Fri, 17 Sep 2010 14:19:40 -0700
From:	Randy Dunlap <rdunlap@...otime.net>
To:	"Huangqiang Zhou" <linuxkernel.xqiang@...il.com>
Cc:	"ly" <ly@...oo.com.cn>, "linux-net" <linux-net@...r.kernel.org>,
	"netdev" <netdev@...r.kernel.org>
Subject: Re: How about the order of Network stack initialize

On Thu, 16 Sep 2010 09:06:16 +0800 Huangqiang Zhou wrote:

> Hi all：
> 
> I have a question about the order of  network stack initialize.
> 
> From some books it says the order is as below:
> 1.core_initcall: sock_init
> 2.fs_initcall: inet_init
> 3.subsys_initcall: net_dev_init
> 4.device_initcall: device init
> 
> in the source code of linux2.6.18:
> #define core_initcall(fn) __define_initcall("1",fn)
> #define postcore_initcall(fn) __define_initcall("2",fn)
> #define arch_initcall(fn) __define_initcall("3",fn)
> #define subsys_initcall(fn) __define_initcall("4",fn)
> #define fs_initcall(fn) __define_initcall("5",fn)
> #define device_initcall(fn) __define_initcall("6",fn)
> #define late_initcall(fn) __define_initcall("7",fn)
> 
> obviously:
> macro                 section
> core_initcall <--> .initcall1.init 
> fs_initcall <--> .initcall5.init
> subsys_initcall <--> .initcall4.init
> device_intcall <--> .initcall6.init
> 
> Some also says：
> “Every child is to determine the sequence between sections, the first call. Initcall1 init. 
>  The function pointer, again. Initcall2 init. Call the function pointer, etc. And in each section 
>  of the function pointer is associated with links to order, is uncertain ”
> 
>  As the above says, the order should be: core_initcall->subsys_initcall->fs_initcall->device_intcall
> 
> So which one is really correct?
> 
> 2010-09-15 
> Huangqiang Zhou

Hi,

BTW, did you find out anything from your previous posting's answers?

http://marc.info/?l=linux-net&m=128443018603483&w=2

---
~Randy
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