From 7632667d26a99d3b33ec8dd522c4086653ff9388 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Wed, 28 May 2014 15:27:18 +0200
Subject: [PATCH] netfilter: nft_rbtree: introduce locking

There's no rbtree rcu version yet, so let's fall back on the spinlock
to protect the concurrent access of this structure both from user
(to update the set content) and kernel-space (in the packet path).

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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