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
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