Erratum 383 fix for 32 bit x86 kernels

[Joerg Roedel]

Hi Greg,

here is a patch which I want to ask you to include into the current
-stable kernels. This patch fixes the occurence of AMD Erratum 383 on
32 bit x86 kernels when using CPU hotplug. This patch is a combined
patch created by cherry-picking (and fixing a small compile error)
upstream commits:

	fd89a137924e0710078c3ae855e7cec1c43cb845
	b7d460897739e02f186425b7276e3fdb1595cea7

The second commit fixes a problem in the first one. The patch I attach
here is against 2.6.32.22 but should also apply against 2.6.35 (At least
cherry-picking from 2.6.36-rc gave no conflicts).
Please consider to include this patch into the -stable kernel series.

Regards,

	Joerg