From: Yinghai Lu <yhlu.kernel@gmail.com>
Date: Wed, 4 Jun 2008 02:32:30 +0000 (-0700)
Subject: x86, numa, 32-bit: make sure get we kva space
X-Git-Tag: v2.6.27-rc1~1106^2~247^2~48
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=84b56fa46b36c2df508e7d421feab514fad30f81;p=pandora-kernel.git

x86, numa, 32-bit: make sure get we kva space

when 1/3 user/kernel split is used, and less memory is installed, or if
we have a big hole below 4g, max_low_pfn is still using 3g-128m

try to go down from max_low_pfn until we get it. otherwise will panic.

need to make 32-bit code to use register_e820_active_regions ... later.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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