hi,
thanks you all, Rahul's suggestion really helps me.

On 1/8/11, Rahul Deshmukh [off-list ref] wrote:

Hello,

I think you are looking for following:

fs/ext2/super.c:

init_ext2_fs()-> register_filesystem(&ext2_fs_type)->
ext2_get_sb()->ext2_fill_super()

For every file system in linux kernel,  first it register itself with
register_filesystem().
Here this call is called when ext2  module is loaded. Then when file system
is mount
it will call ext2_fill_super() which will read the on disk super block and
load it into memory.

The on disk super block is written when user format the device with given
file system.

I hope that will help.

- Rahul

On Fri, Jan 7, 2011 at 9:40 PM, Fu Kai [off-list ref] wrote:

quoted

hi folks,
I'm looking the source code about linux file system recently. I have
scanned over ext2,
and now I'm very curious about how does the kernel setup the ext2 up, but
I
couldn't locate
the corresponding code. Could anybody give any advice for me?

Thanks,
owr

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-- 
Thanks,
Fu Kai