From: Jack Steiner <steiner@sgi.com>
Date: Wed, 31 May 2006 13:58:08 +0000 (-0500)
Subject: [IA64-SGI] SN topology fix for large systems
X-Git-Tag: v2.6.18-rc1~1089
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a1d7057727bc9e20a0a417812f538fe6b8a02c03;p=pandora-kernel.git

[IA64-SGI] SN topology fix for large systems

There is an SN bug in sn_hwperf.c that affects systems with 1024n or 1024p.
The bug manifests itself 2 ways: IO interrupts are not always
targeted to the nearest node, and 2) the "cat /proc/sgi_sn/sn_topology"
commands fails with "cannot allocate memory".

The code is using the wrong macros for validating node numbers.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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