From: Eric Dumazet <dada1@cosmosbay.com>
Date: Wed, 26 Nov 2008 05:16:35 +0000 (-0800)
Subject: net: Use a percpu_counter for sockets_allocated
X-Git-Tag: v2.6.29-rc1~581^2~388
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1748376b6626acf59c24e9592ac67b3fe2a0e026;p=pandora-kernel.git

net: Use a percpu_counter for sockets_allocated

Instead of using one atomic_t per protocol, use a percpu_counter
for "sockets_allocated", to reduce cache line contention on
heavy duty network servers.

Note : We revert commit (248969ae31e1b3276fc4399d67ce29a5d81e6fd9
net: af_unix can make unix_nr_socks visbile in /proc),
since it is not anymore used after sock_prot_inuse_add() addition

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

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