Re: Getting the list of the file systems which are mounted.

["Prasad Joshi" <prasadjoshi124@xxxxxxxxx>]

 Thanks Mark,
I am using 2.6.26 kernel.

Can you please explain, why you specifically mentioned the kernel 2.6.24 or below? What is difference between 2.6.24 kernel and latest kernel in this regards?

Thanks and Regards,
Prasad

On Mon, Aug 4, 2008 at 1:03 AM, Mark Brown <markb@xxxxxxxxxxxxxxxxxxxxx> wrote:

If you are using kernel 2.6.24 or below you can specify the prototype:

extern int get_filesystem_list(char *);

It does not look like this function was intended for general use, so be careful.

Regards,
-- Mark

On Aug 3, 2008, at 1:04 PM, Rene Herman wrote:

On 03-08-08 17:44, Prasad Joshi wrote:

I am calling a function get_filesystem_list() from a module which I am writing. During the compilation I am getting the error
WARNING: get_filesystem_list [module name] undefined!
And the insertion of the module also fails giving error unresolved symbol.
I need the list of file systems registered on the system, get_filesystem_list() does the same.
I have included the file <linux/fs.h> as well. Why is it not working and how to make it work?

get_filesystem_list() is not exported for use by modules. Probably just because noone needs it...

For your own personal use, you can just export if from your kernel yourself. Add a

       EXPORT_SYMBOL(get_filesystem_list);

directly after the closing brace of get_filesystem_list() (that location is just convention, technically anywhere would be fine) and recmpile the kernel. After reboot, get_filesystem_list() is available to modules.

Rene.

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