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authorEric Dumazet <eric.dumazet@gmail.com>2010-04-29 00:31:51 +0200
committerDavid S. Miller <davem@davemloft.net>2010-04-29 00:31:51 +0200
commitf84af32cbca70a3c6d30463dc08c7984af11c277 (patch)
tree06ede4b3ed91be899f8f29b4c7eb1fb76f1ade97 /net/ipv6/udp.c
parentnet: speedup udp receive path (diff)
downloadlinux-f84af32cbca70a3c6d30463dc08c7984af11c277.tar.xz
linux-f84af32cbca70a3c6d30463dc08c7984af11c277.zip
net: ip_queue_rcv_skb() helper
When queueing a skb to socket, we can immediately release its dst if target socket do not use IP_CMSG_PKTINFO. tcp_data_queue() can drop dst too. This to benefit from a hot cache line and avoid the receiver, possibly on another cpu, to dirty this cache line himself. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--net/ipv6/udp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 91c60f0090a4..79359c8380bc 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -514,7 +514,7 @@ int udpv6_queue_rcv_skb(struct sock * sk, struct sk_buff *skb)
goto drop;
}
- if ((rc = sock_queue_rcv_skb(sk, skb)) < 0) {
+ if ((rc = ip_queue_rcv_skb(sk, skb)) < 0) {
/* Note that an ENOMEM error is charged twice */
if (rc == -ENOMEM)
UDP6_INC_STATS_BH(sock_net(sk),