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authorEric Dumazet <eric.dumazet@gmail.com>2010-05-10 11:33:06 +0000
committerDavid S. Miller <davem@davemloft.net>2010-05-17 17:18:51 -0700
commit4a94445c9a5cf5461fb41d80040033b9a8e2a85a (patch)
tree7891df11e4df4dd2c5149ef4fdc7d1301e7fca36 /net/ipv4/ip_input.c
parent407eadd996dc62a827db85f1d0c286a98fd5d336 (diff)
downloadop-kernel-dev-4a94445c9a5cf5461fb41d80040033b9a8e2a85a.zip
op-kernel-dev-4a94445c9a5cf5461fb41d80040033b9a8e2a85a.tar.gz
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/ip_input.c')
-rw-r--r--net/ipv4/ip_input.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index af76de5..d930dc5 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -331,8 +331,8 @@ static int ip_rcv_finish(struct sk_buff *skb)
* how the packet travels inside Linux networking.
*/
if (skb_dst(skb) == NULL) {
- int err = ip_route_input(skb, iph->daddr, iph->saddr, iph->tos,
- skb->dev);
+ int err = ip_route_input_noref(skb, iph->daddr, iph->saddr,
+ iph->tos, skb->dev);
if (unlikely(err)) {
if (err == -EHOSTUNREACH)
IP_INC_STATS_BH(dev_net(skb->dev),
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