linux-kernel - Re: [patch/rfc] s390: get rid of own uid16 compat system calls

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Message-ID: <20060727060626.GA9594@osiris.boeblingen.de.ibm.com>
Date:	Thu, 27 Jul 2006 08:06:26 +0200
From:	Heiko Carstens <heiko.carstens@...ibm.com>
To:	Arnd Bergmann <arnd.bergmann@...ibm.com>
Cc:	linux-kernel@...r.kernel.org,
	Martin Schwidefsky <schwidefsky@...ibm.com>
Subject: Re: [patch/rfc] s390: get rid of own uid16 compat system calls

On Thu, Jul 27, 2006 at 03:03:42AM +0200, Arnd Bergmann wrote:
> On Monday 10 July 2006 10:51, Heiko Carstens wrote:
> > "Only" thing is that we unfortunately have different sizes for
> > __kernel_old_[uid|gid]_t (16 bit on s390, 32 on s390x). I was tempted to
> > change these just to find out that there are other users as well:
> > 
> > include/linux/ncp_fs.h:
> > ?#define NCP_IOC_GETMOUNTUID _IOW('n', 2, __kernel_old_uid_t)
> > include/linux/smb_fs.h:
> > ?#define SMB_IOC_GETMOUNTUID _IOR('u', 1, __kernel_old_uid_t)
> > 
> > So, this is no option. Would anybody know of something to get this work?
> > Or is this just a stupid idea?
> 
> Ok, I don't know exactly what you're talking about, but I have in the
> past tried to hack that area as well. It's probably a good idea to
> pick up my old patch and work from there, by making these two file systems
> understand all possible ways:

I dropped my initial patch and gave up on this. The idea of using
kernel/uid16.c for compat code seems to be... not very good :)
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