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authorDavid S. Miller <davem@sunset.davemloft.net>2006-11-09 19:58:25 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2006-12-02 21:21:52 -0800
commit931731123a103cfb3f70ac4b7abfc71d94ba1f03 (patch)
tree0af6636fde05f74a8aa5421bfe9828e2a209170d /net/ipv6/inet6_connection_sock.c
parentef56e622c61e74dd6077615c9ea76c5132195880 (diff)
downloadblackbird-obmc-linux-931731123a103cfb3f70ac4b7abfc71d94ba1f03.tar.gz
blackbird-obmc-linux-931731123a103cfb3f70ac4b7abfc71d94ba1f03.zip
[TCP]: Don't set SKB owner in tcp_transmit_skb().
The data itself is already charged to the SKB, doing the skb_set_owner_w() just generates a lot of noise and extra atomics we don't really need. Lmbench improvements on lat_tcp are minimal: before: TCP latency using localhost: 23.2701 microseconds TCP latency using localhost: 23.1994 microseconds TCP latency using localhost: 23.2257 microseconds after: TCP latency using localhost: 22.8380 microseconds TCP latency using localhost: 22.9465 microseconds TCP latency using localhost: 22.8462 microseconds Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/inet6_connection_sock.c')
-rw-r--r--net/ipv6/inet6_connection_sock.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index e48fb4c53c4f..c598962eaa40 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -139,9 +139,8 @@ void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr * uaddr)
EXPORT_SYMBOL_GPL(inet6_csk_addr2sockaddr);
-int inet6_csk_xmit(struct sk_buff *skb, int ipfragok)
+int inet6_csk_xmit(struct sk_buff *skb, struct sock *sk, int ipfragok)
{
- struct sock *sk = skb->sk;
struct inet_sock *inet = inet_sk(sk);
struct ipv6_pinfo *np = inet6_sk(sk);
struct flowi fl;
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