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net: filter: dont block softirqs in sk_run_filter()

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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>
This commit is contained in:
Eric Dumazet
2011-01-18 07:46:52 +00:00
committed by David S. Miller
parent d6ae3bae3d
commit 80f8f1027b
3 changed files with 7 additions and 7 deletions
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6
net/packet/af_packet.c
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@@ -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;
}