commit 80c5e73d6028e0f03ab0c70e7c4cbf98ac2e0c43
author Venki Pallipadi <venkatesh.pallipadi@intel.com> Tue Aug 19 16:28:01 2008 -0700
committer Ingo Molnar <mingo@elte.hu> Wed Aug 20 12:08:37 2008 +0200
tree b1ae13cc96dd94e7090942e5602df6277a4126e4
parent c6744955d0ec0cb485c28c51eeb7185e260f6172

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>