From: Jack Steiner <steiner@sgi.com>
Date: Fri, 20 Jun 2008 02:51:05 +0000 (-0500)
Subject: x86: fix stack overflow for large values of MAX_APICS
X-Git-Tag: v2.6.27-rc1~1106^2~244^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b6df1b8bc1250191cfee15627697111c1cbda53f;p=pandora-kernel.git

x86: fix stack overflow for large values of MAX_APICS

physid_mask_of_physid() causes a huge stack (12k) to be created if the
number of APICS is large. Replace physid_mask_of_physid() with a
new function that does not create large stacks. This is a problem only
on large x86_64 systems.

this paves the way to increase MAX_APICS.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: linux-mm@kvack.org
Cc: mingo@elte.hu
Cc: tglx@linutronix.de
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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