linux-kernel - Re: [RFC: 2.6 patch] s390: use kernel/uid.c

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Date:	Fri, 15 Aug 2008 17:34:43 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Adrian Bunk <bunk@...nel.org>
Cc:	schwidefsky@...ibm.com, heiko.carstens@...ibm.com,
	linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC: 2.6 patch] s390: use kernel/uid.c

On Sunday 10 August 2008, Adrian Bunk wrote:
> Unless I missed a twist the only reason for s390 to not use the code in 
> kernel/uid.c was that it copied the code from sparc64 (that is now 
> being changed in a similar way by David).
> 
> Signed-off-by: Adrian Bunk <bunk@...nel.org>
> 

I tried doing this before but couldn't figure out an easy way,
but the circumstances may have changed by now.

Back then, the basic problem was that CONFIG_UID16 had side-effects
that break the 64-bit versions of some syscalls. I don't see that
being the case any more, but from what I can tell, you still need
to add definitions for __kernel_old_uid_t etc on s390x.

If that does the trick, great work!

	Arnd <><
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