From: Venki Pallipadi <venkatesh.pallipadi@intel.com>
Date: Tue, 19 Aug 2008 23:28:01 +0000 (-0700)
Subject: x86: fix Xorg startup/shutdown slowdown with PAT
X-Git-Tag: v2.6.27-rc5~50^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=80c5e73d6028e0f03ab0c70e7c4cbf98ac2e0c43;p=pandora-kernel.git

x86: fix Xorg startup/shutdown slowdown with PAT

Rene Herman reported significant Xorg startup/shutdown slowdown due
to PAT. It turns out that the memtype list has thousands of entries.

Add cached_entry to list add routine, in order to speed up the
lookup for sequential reserve_memtype calls.

Reported-by: Rene Herman <rene.herman@keyaccess.nl>
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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