filesystem in the kernel

filesystem in the kernel

[Bakki Srinivas]

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hi,
    when a filesystem is registered with the kernel eg.
register_filesystem(&ext2_fs_type);
  where is the structure ext2_fs_type declared ?

Thanks with Regards
Srinivas Bakki

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Re: filesystem in the kernel

[Senthil Nathan V]

On Thu, 25 Nov 2004 12:04:31 +0530, Bakki Srinivas  
<bakki_srinivas@mindtree.com> wrote:

> hi,
>     when a filesystem is registered with the kernel eg.
> register_filesystem(&ext2_fs_type);
>   where is the structure ext2_fs_type declared ?
>
	ext2_fs_type is variable of type "struct file_system_type"

	Refer to the source code in /usr/src/lyour_linux_kernel_dir/  
include/linux/fs.h


--
regards,
Senthil Nathan V
	


	

Re: filesystem in the kernel

[Jan-Benedict Glaw]

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On Thu, 2004-11-25 12:04:31 +0530, Bakki Srinivas <bakki_srinivas@mindtree.com>
wrote in message <5959EA4638D8734599AB75EAAFBB6FEFA471E6@mtv01ex04.mindtree.com>:
> hi,
>     when a filesystem is registered with the kernel eg.
> register_filesystem(&ext2_fs_type);
>   where is the structure ext2_fs_type declared ?

ext2_fs_type is defined in ./linux/fs/ext2/super.c, about 15 lines
above the code that registeres it :-)

ext2_fs_type itself is a "struct file_system_type", which is declared
in ./linux/include/linux/fs.h

MfG, JBG

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RE: filesystem in the kernel

[Bakki Srinivas]

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Thanks.

Regards
Srinivas

-----Original Message-----
From: sumit kalra [mailto:i_am_sumit_kalra@yahoo.com]
Sent: Thursday, November 25, 2004 5:45 PM
To: Bakki Srinivas
Cc: linux-c-programming@vger.kernel.org
Subject: Re: filesystem in the kernel


Hi,

ext2_fs_type is declared using the macro
DECLARE_FSTYPE_DEV. This macro eventually
expands to declaring ext2_fs_type as an instance of
struct file_system_type and initializes its members.

Look at this macros in include/linux/fs.h

Regards,
Sumit

------------------------------------- 

 --- Bakki Srinivas <bakki_srinivas@mindtree.com>
wrote: 
> hi,
>     when a filesystem is registered with the kernel
> eg.
> register_filesystem(&ext2_fs_type);
>   where is the structure ext2_fs_type declared ?
> 
> Thanks with Regards
> Srinivas Bakki
> >
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