From 02e4eb75912a5c8babccc1acdc9cc913989be04e Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 1 Apr 2010 14:35:56 +0200
Subject: [PATCH] netfilter: xt_hashlimit: RCU conversion

xt_hashlimit uses a central lock per hash table and suffers from
contention on some workloads. (Multiqueue NIC or if RPS is enabled)

After RCU conversion, central lock is only used when a writer wants to
add or delete an entry.

For 'readers', updating an existing entry, they use an individual lock
per entry.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
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Reading git-format-patch failed