http://www.groklaw.net/article.php?story=2003111203544653
"I used it for comparison to file listings of different kernel versions,
and my conclusion is that this list is either based on 2.5.68 (released
April 20, 2003) or on 2.5.69 (released May 5, 2003). Those are the only
two versions that contain all of the listed files." -- Groklaw reader
"Lev"
Maybe they just did a grep for anything with the three letters SMP
(among other things). Interesting files in the list that might support
this.
fs/reiserfs/fix_node.c
2246 : * When ported to SMP kernels, only at the last
net/ipv4/devinet.c
525- /* Note that these ioctls will not sleep,
526- so that we do not impose a lock.
527: One day we will be forced to put shlock here (I mean SMP)
528- */
net/atm/pppoatm.c
/*
* We don't really always want to do this since it's
* really inefficient - it would be much better if we could
* test if we had actually throttled the generic layer.
* Unfortunately then there would be a nasty SMP race where
* we could clear that flag just as we refuse another packet.
* For now we do the safe thing.
*/
Or just include/asm-m68k/spinlock.h :)
The whole file is just:
#ifndef __M68K_SPINLOCK_H
#define __M68K_SPINLOCK_H
#error "m68k doesn't do SMP yet"
#endif
On Wednesday 12 November 2003 07:49 pm, Benjamin Herrenschmidt wrote:
> Or just include/asm-m68k/spinlock.h :)
>
> The whole file is just:
>
> #ifndef __M68K_SPINLOCK_H
> #define __M68K_SPINLOCK_H
>
> #error "m68k doesn't do SMP yet"
>
> #endif
Here's my personal favorite, file 490 of 591.
See if you can spot the purloined Intellectual Property:
[steven@spc 2.6-bk-current]$ cat include/asm-v850/percpu.h
#ifndef __V850_PERCPU_H__
#define __V850_PERCPU_H__
#include <asm-generic/percpu.h>
/* This is a stupid hack to satisfy some grotty implicit include-file
dependency; basically, <linux/smp.h> uses BUG_ON, which calls BUG, but
doesn't include the necessary headers to define it. In the twisted
festering mess of includes this must all be resolved somehow on other
platforms, but I haven't the faintest idea how, and don't care; here will
do, even though doesn't actually make any sense. */
#include <asm/page.h>
#endif /* __V850_PERCPU_H__ */
I'm betting on the "This is a stupid hack" phrase. Undoubtably SCO's code
is littered with comments like that.
Steven
On Thu, 13 Nov 2003, Benjamin Herrenschmidt wrote:
> Or just include/asm-m68k/spinlock.h :)
>
> The whole file is just:
>
> #ifndef __M68K_SPINLOCK_H
> #define __M68K_SPINLOCK_H
>
> #error "m68k doesn't do SMP yet"
>
> #endif
Ah, thank you for checking out the m68k-specific files :-)
Although I don't think I wrote that one, I'm quite sure it was written from
scratch, probably by Jes. I can dig it up if we really need to know...
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
On Thu, 13 Nov 2003, Benjamin Herrenschmidt wrote:
> Or just include/asm-m68k/spinlock.h :)
> #ifndef __M68K_SPINLOCK_H
> #define __M68K_SPINLOCK_H
> #error "m68k doesn't do SMP yet"
> #endif
I wonder if that reflects the state SCO's OSes are in,
with respect to the technologies they claim that IBM
misappropriated ;)
--
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan
On Thu, 13 Nov 2003, Jes Sorensen wrote:
> >>>>> "Geert" == Geert Uytterhoeven <[email protected]> writes:
>
> Geert> Ah, thank you for checking out the m68k-specific files :-)
>
> Geert> Although I don't think I wrote that one, I'm quite sure it was
> Geert> written from scratch, probably by Jes. I can dig it up if we
> Geert> really need to know...
>
> It goes so far back I can't even remember - who would have known that
> I was able to steal valueable IP from SCO without even knowing and
> that so many years ago!
>
> Cheers,
> Jes
>
Yeh. Watch out for "#include". They probably own that syntax, too.
Cheers,
Dick Johnson
Penguin : Linux version 2.4.22 on an i686 machine (797.90 BogoMips).
Note 96.31% of all statistics are fiction.
>>>>> "Geert" == Geert Uytterhoeven <[email protected]> writes:
Geert> Ah, thank you for checking out the m68k-specific files :-)
Geert> Although I don't think I wrote that one, I'm quite sure it was
Geert> written from scratch, probably by Jes. I can dig it up if we
Geert> really need to know...
It goes so far back I can't even remember - who would have known that
I was able to steal valueable IP from SCO without even knowing and
that so many years ago!
Cheers,
Jes
Steven Cole wrote:
> Here's my personal favorite, file 490 of 591.
> See if you can spot the purloined Intellectual Property:
[...]
> #include <asm/page.h>
^^ ^
Another infringement!
Jon
Dax Kelson <[email protected]> wrote:
| http://www.groklaw.net/article.php?story=2003111203544653
|
| "I used it for comparison to file listings of different kernel versions,
| and my conclusion is that this list is either based on 2.5.68 (released
| April 20, 2003) or on 2.5.69 (released May 5, 2003). Those are the only
| two versions that contain all of the listed files." -- Groklaw reader
| "Lev"
I think they used 2.5.69. Their list includes net/bridge/br_if.c, and
patch 2.5.69 adds code containing the word "rcu", which is probably
one of the keywords they searched for. The following script generates
a list very close to SCOs list:
#!/bin/sh
# to be run in the linux-2.5.69 kernel tree
(
find * -name '*.[ch]' |
egrep -v '^(drivers|sound)|(arch/|include/asm-)(sparc|alpha|parisc)' |
xargs egrep -iwl '(smp|numa|rcu)'
ls fs/jfs/*.[ch]
) |
sort -u
The only files not on SCOs list are:
arch/um/drivers/harddog_kern.c
arch/um/drivers/harddog_user.c
arch/um/drivers/mconsole_kern.c
include/asm-h8300/smplock.h
--
Dick Streefland //// De Bilt
[email protected] (@ @) The Netherlands
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