From: David Rientjes <rientjes@google.com>
Date: Mon, 15 Feb 2010 21:43:25 +0000 (-0800)
Subject: x86, numa: Fix numa emulation calculation of big nodes
X-Git-Tag: v2.6.34-rc1~253^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=68fd111e02b979876359c7b471a8bcbca0628b75;p=pandora-kernel.git

x86, numa: Fix numa emulation calculation of big nodes

numa=fake=N uses split_nodes_interleave() to partition the system into N
fake nodes.  Each node size must have be a multiple of
FAKE_NODE_MIN_SIZE, otherwise it is possible to get strange alignments.
Because of this, the remaining memory from each node when rounded to
FAKE_NODE_MIN_SIZE is consolidated into a number of "big nodes" that are
bigger than the rest.

The calculation of the number of big nodes is incorrect since it is using
a logical AND operator when it should be multiplying the rounded-off
portion of each node with N.

Signed-off-by: David Rientjes <rientjes@google.com>
LKML-Reference: <alpine.DEB.2.00.1002151342230.26927@chino.kir.corp.google.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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