From: Yinghai Lu <yhlu.kernel@gmail.com>
Date: Mon, 2 Jun 2008 06:53:50 +0000 (-0700)
Subject: x86: clean up max_pfn_mapped usage - 32-bit
X-Git-Tag: v2.6.27-rc1~1106^2~247^2~53
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6af61a7614a306fe882a0c2b4ddc63b65aa66efc;p=pandora-kernel.git

x86: clean up max_pfn_mapped usage - 32-bit

on 32-bit in head_32.S after initial page table is done, we get initial
max_pfn_mapped, and then kernel_physical_mapping_init will give us
a final one.

We need to use that to make sure find_e820_area will get valid addresses
for boot_map and for NODE_DATA(0) on numa32.

XEN PV and lguest may need to assign max_pfn_mapped too.

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