From: Eric Dumazet <dada1@cosmosbay.com>
Date: Fri, 26 Aug 2005 19:05:31 +0000 (-0700)
Subject: [NET]: use __read_mostly on kmem_cache_t , DEFINE_SNMP_STAT pointers
X-Git-Tag: v2.6.14-rc1~1035^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ba89966c1984513f4f2cc0a6c182266be44ddd03;p=pandora-kernel.git

[NET]: use __read_mostly on kmem_cache_t , DEFINE_SNMP_STAT pointers

This patch puts mostly read only data in the right section
(read_mostly), to help sharing of these data between CPUS without
memory ping pongs.

On one of my production machine, tcp_statistics was sitting in a
heavily modified cache line, so *every* SNMP update had to force a
reload.

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

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