From: Eric W. Biederman <ebiederm@xmission.com>
Date: Fri, 3 Apr 2009 07:36:27 +0000 (-0700)
Subject: sysctl: Introduce a generic compat sysctl sysctl
X-Git-Tag: v2.6.33-rc1~392^2~41
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=da3f6f9b3e0d1e73975ca81ae124406bf1587d40;p=pandora-kernel.git

sysctl: Introduce a generic compat sysctl sysctl

This uses compat_alloc_userspace to remove the various
hacks to allow do_sysctl to write to throuh oldlenp.

The rest of our mature compat syscall helper facitilies
are used as well to ensure we have a nice clean maintainable
compat syscall that can be used on all architectures.

The motiviation for a generic compat sysctl (besides the
obvious hack removal) is to reduce the number of compat
sysctl defintions out there so I can refactor the
binary sysctl implementation.

ppc already used the name compat_sys_sysctl so I remove the
ppcs version here.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
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