From: Eric Dumazet <dada1@cosmosbay.com>
Date: Fri, 16 Nov 2007 11:32:10 +0000 (-0800)
Subject: [NET]: NET_CLS_ROUTE : convert ip_rt_acct to per_cpu variables
X-Git-Tag: v2.6.25-rc1~1162^2~1416
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8dbde28d9711475adfe0e9c88505e38743cdc2a7;p=pandora-kernel.git

[NET]: NET_CLS_ROUTE : convert ip_rt_acct to per_cpu variables

ip_rt_acct needs 4096 bytes per cpu to perform some accounting.
It is actually allocated as a single huge array [4096*NR_CPUS]
(rounded up to a power of two)

Converting it to a per cpu variable is wanted to :
 - Save space on machines were num_possible_cpus() < NR_CPUS
 - Better NUMA placement (each cpu gets memory on its node)

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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