From: Tejun Heo <tj@kernel.org>
Date: Tue, 22 Feb 2011 10:10:08 +0000 (+0100)
Subject: x86-64, NUMA: Prepare numa_emulation() for moving NUMA emulation into a separate... 
X-Git-Tag: v2.6.39-rc1~499^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fbe99959d1db85222829a64d869dcab704ac7ec8;p=pandora-kernel.git

x86-64, NUMA: Prepare numa_emulation() for moving NUMA emulation into a separate file

Update numa_emulation() such that, it

- takes @numa_meminfo and @numa_dist_cnt instead of directly
  referencing the global variables.

- copies the distance table by iterating each distance with
  node_distance() instead of memcpy'ing the distance table.

- tests emu_cmdline to determine whether emulation is requested and
  fills emu_nid_to_phys[] with identity mapping if emulation is not
  used.  This allows the caller to call numa_emulation()
  unconditionally and makes return value unncessary.

- defines dummy version if CONFIG_NUMA_EMU is disabled.

This patch doesn't introduce any behavior change.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
---

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