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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2010-05-10 11:33:06 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-05-17 17:18:51 -0700 |
| commit | 4a94445c9a5cf5461fb41d80040033b9a8e2a85a (patch) | |
| tree | 7891df11e4df4dd2c5149ef4fdc7d1301e7fca36 /net/ipv4/xfrm4_input.c | |
| parent | 407eadd996dc62a827db85f1d0c286a98fd5d336 (diff) | |
| download | lwn-4a94445c9a5cf5461fb41d80040033b9a8e2a85a.tar.gz lwn-4a94445c9a5cf5461fb41d80040033b9a8e2a85a.zip | |
net: Use ip_route_input_noref() in input path
Use ip_route_input_noref() in ip fast path, to avoid two atomic ops per
incoming packet.
Note: loopback is excluded from this optimization in ip_rcv_finish()
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/xfrm4_input.c')
| -rw-r--r-- | net/ipv4/xfrm4_input.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/xfrm4_input.c b/net/ipv4/xfrm4_input.c index abcd7ed65db1..ad8fbb871aa0 100644 --- a/net/ipv4/xfrm4_input.c +++ b/net/ipv4/xfrm4_input.c @@ -27,8 +27,8 @@ static inline int xfrm4_rcv_encap_finish(struct sk_buff *skb) if (skb_dst(skb) == NULL) { const struct iphdr *iph = ip_hdr(skb); - if (ip_route_input(skb, iph->daddr, iph->saddr, iph->tos, - skb->dev)) + if (ip_route_input_noref(skb, iph->daddr, iph->saddr, + iph->tos, skb->dev)) goto drop; } return dst_input(skb); |