On Mon, Aug 18, 2008 at 3:24 AM, Satish Eerpini <eerpini@xxxxxxxxx> wrote:
> hi everyone , i was trying to patch kdb with CentOS 5.0 kernel
> (2.6.18-8) , and had a few rejects ( which i am still trying to
> resolve) ,.... but apart from the rejects during the kernel
> compilation i got the following error which does not seem to have
> anything to do with the rejects ............
> i have got an error in a kdb module, which has nothing to do with the
> rejected patches ( or so i guess ) :
>
> kdb/modules/kdbm_pg.c: In function 'kdbm_show_page':
> kdb/modules/kdbm_pg.c:349: error: implicit declaration
> of function 'PageChecked'
> kdb/modules/kdbm_pg.c: In function 'kdbm_inode':
> kdb/modules/kdbm_pg.c:507: error: 'struct inode' has no
> member named 'u'
>
> the code(in kdb/modules/kdbm_pg.c) which is causing the second error
> is something like this :
>
> iaddr += offsetof(struct inode, u);
>
> what i am not able to understand is that if 'u' is not a correct
> member of the inode , .. then what did they( whoever wrote this piece
> code) intend by 'u' ? , .....
>
> ....
> and for the first error , ... i just checked out the code ....
> according to the line no shown in the error .....the code is :
>
> kdb_page_flags(page, Checked);
>
> and i don't see any function PageChecked ....! so what can the error
> actually mean ??
>
> Thanks in advance
> Satish
>
> --
Well I think people usually don't use KDB modules, so you can simply
disable KDB modules by setting CONFIG_KDB_MODULES=n. This can avoid
the two errors you mentioned.
Regarding your second error, you can replace "u" with "i_private".
iaddr += offsetof(struct inode, i_private);
As to the first error, you can refer to the definition of
kdb_page_flags, which explains your question.
#define kdb_page_flags(page, type) if (Page ## type(page))
kdb_printf(" " #type);
Regards
Jason
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