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List:       gfs-users
Subject:    [gfs-users] Re: Compiling GFS4.0 on 2.4.1pre10
From:       Steve Whitehouse <steve () gw ! chygwyn ! com>
Date:       2001-01-29 11:35:27
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Hi,

gnbd is not yet ported to the 2.4 kernel I'm afraid. You have to build
the various components seperately rather than using the main makefile
to do it.

The following things have been ported to 2.4:

gfs
locking/nolock
locking/memexp (but only for TCP/IP based locking)
stomith/module (the rest of stomith will compile too since thats userspace
                and not kernel dependant)
divdi3

The main missing items are pool and gnbd,

Steve.

> 
> Hi,
> 
> I seem to be unable compile the GFS source on a 2.4.1pre10 kernel.
> 
> I followed the advice of Steve, I gave up the old 2.4.0 kernel and after
> patching the 2.4.1pre10 the problem about the undefined
> "gfs_callback_end_io()" in the main.c of src/fs/arch_linux_2_4 got
> fixed.
> This time the compiler displays error messages in the gnbd part of GFS.
> More precisely, once making src/gnbd/cli//main.c it says:
> 
> 1.
> In file included from main.c:75:
> gndb.h:138:conflicting types for 'gndb_request'
> /usr/src/linux/include/linux/blk.h:358:previous declaration of
> gnbd_request
> 
> in gnbd.h (138) I found
> void gnbd_request(void);
> 
> in main.c
> 
> #define DEVICE_REQUEST gnbd_request
> 
> followed by, in <linux/blk.h> (357)
> 
> #ifdef DEVICE_REQUEST
> static void (DEVICE_REQUEST)(request_queue_t *);
> #endif
> 
> 2.
> Immediately after this, on the following lines it complains:
> main.c :107: warning: initialization makes pointer from integer without
> a cast
> main.c :109: ...
> main.c :111:
> 
> This happens in the main.c file once instantiating a gendisk structure
> 
> struct gendisk gnbd_gendisk = {
>     0,
>     DEVICE_NAME,
>     ...
> }
> 
> The declaration of the gendisk structure in <linux/genhd.h> does not
> actually match the initialization (starting with the fifth
> field that is a struct hd_struct *part in genhd.h, initialized with 255
> in main.c). Is gnbd supported only under 2.2.18 kernels ?
> How can I leave this feature out (must be a configure --disable-FEATURE,
> but what is the name of the feature to disable ?) ?
> 
> Sorry for these "I can't figure it out, help me" messages. But I could
> really use your help.
> 
> Regards,
> Tudor TEUSAN
> 

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