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netfilter: nf_conncount: use rb_link_node_rcu() instead of rb_link_node()

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[ Upstream commit d4e7df1656 ]

rbnode in insert_tree() is rcu protected pointer.
So, in order to handle this pointer, _rcu function should be used.
rb_link_node_rcu() is a rcu version of rb_link_node().

Fixes: 34848d5c89 ("netfilter: nf_conncount: Split insert and traversal")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Taehee Yoo
2018-12-08 11:03:01 +09:00
committed by Greg Kroah-Hartman
parent ba364929ff
commit 7fd995d3b4
1 changed files with 1 additions and 1 deletions
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2
net/netfilter/nf_conncount.c
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@@ -427,7 +427,7 @@ insert_tree(struct net *net,
count = 1;
rbconn->list.count = count;
rb_link_node(&rbconn->node, parent, rbnode);
rb_link_node_rcu(&rbconn->node, parent, rbnode);
rb_insert_color(&rbconn->node, root);
out_unlock:
spin_unlock_bh(&nf_conncount_locks[hash % CONNCOUNT_LOCK_SLOTS]);