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authorEric Dumazet <eric.dumazet@gmail.com>2011-01-18 07:46:52 +0000
committerDavid S. Miller <davem@davemloft.net>2011-01-18 21:33:05 -0800
commit80f8f1027b99660897bdeaeae73002185d829906 (patch)
treeb8aafe71974b2b7295f20eeb1fad6191fadd8551 /net/packet
parentd6ae3bae3d1bf7a8bf367e29f2cac0788dcd0db5 (diff)
downloadop-kernel-dev-80f8f1027b99660897bdeaeae73002185d829906.zip
op-kernel-dev-80f8f1027b99660897bdeaeae73002185d829906.tar.gz
net: filter: dont block softirqs in sk_run_filter()
Packet filter (BPF) doesnt need to disable softirqs, being fully re-entrant and lock-less. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/packet')
-rw-r--r--net/packet/af_packet.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 91cb1d7..c3fc7b7 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -523,11 +523,11 @@ static inline unsigned int run_filter(const struct sk_buff *skb,
{
struct sk_filter *filter;
- rcu_read_lock_bh();
- filter = rcu_dereference_bh(sk->sk_filter);
+ rcu_read_lock();
+ filter = rcu_dereference(sk->sk_filter);
if (filter != NULL)
res = sk_run_filter(skb, filter->insns);
- rcu_read_unlock_bh();
+ rcu_read_unlock();
return res;
}
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