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authorFlorian Westphal <fw@strlen.de>2016-04-11 21:14:29 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2016-04-19 20:26:25 +0200
commita163f2cb393d9d71cad57bfe6a8c7f452a478fb4 (patch)
tree025161410579d29f63ab274dddc6aa16e1e85755 /net/netfilter/nf_conntrack_proto_tcp.c
parent4a96300cec88729415683db8a2b909563b09fbaa (diff)
downloadlinux-a163f2cb393d9d71cad57bfe6a8c7f452a478fb4.tar.gz
netfilter: conntrack: don't acquire lock during seq_printf
read access doesn't need any lock here. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nf_conntrack_proto_tcp.c')
-rw-r--r--net/netfilter/nf_conntrack_proto_tcp.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 278f3b9356efd..e0cb0ce387462 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -313,13 +313,7 @@ static void tcp_print_tuple(struct seq_file *s,
/* Print out the private part of the conntrack. */
static void tcp_print_conntrack(struct seq_file *s, struct nf_conn *ct)
{
- enum tcp_conntrack state;
-
- spin_lock_bh(&ct->lock);
- state = ct->proto.tcp.state;
- spin_unlock_bh(&ct->lock);
-
- seq_printf(s, "%s ", tcp_conntrack_names[state]);
+ seq_printf(s, "%s ", tcp_conntrack_names[ct->proto.tcp.state]);
}
static unsigned int get_conntrack_index(const struct tcphdr *tcph)