Receive available and used space from JFFS2

[Savin Zlobec]

>
>
>On Thu, Jun 17, 2004 at 10:07:15AM +0000, eibach@gdsys.de wrote:
>> Hi,
>> 
>> this adds support for information about used and available space in
>> JFFS2 (ecos). This information is received via cyg_fs_getinfo(). The
>> keys for cyg_fs_getinfo() are FS_INFO_FREESIZE and FS_INFO_USEDSIZE.
>> 
>> Regards,
>> Dirk
>
>Hi Dirk
>
>I've taken a look at the patch. Adding those macros to nodelist.h is
>the wrong thing to do. They were replaced by variables last
>October. I've modified your code to do what i think is the correct
>thing. I also added code to the ROMFS to implement getting the the
>used and free size of the filesystem.
>
>Please could you test this patch before i commit it. It would also be
>nice if you could add support to the RAM and FAT filesystem code.
>
>        Thanks
>                Andrew
>
Hi,

I've noticed that you used a 32 bit value for returning fs space info, 
this may
not be such an good idea - check an old discussion about this at
http://ecos.sourceware.org/ml/ecos-devel/2003-07/msg00031.html .
I think a better way would be to return a structure with free/used space
in blocks + block size. It would also be nice to put the keys (+ common 
structures)
in a separate file - like it is done with IO config_keys.h.

savin