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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 /include/net
parentef56e622c61e74dd6077615c9ea76c5132195880 (diff)
[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 'include/net')
-rw-r--r--include/net/inet6_connection_sock.h2
-rw-r--r--include/net/inet_connection_sock.h3
-rw-r--r--include/net/ip.h2
3 files changed, 4 insertions, 3 deletions
diff --git a/include/net/inet6_connection_sock.h b/include/net/inet6_connection_sock.h
index f13ddc2543b..16aa96a6a53 100644
--- a/include/net/inet6_connection_sock.h
+++ b/include/net/inet6_connection_sock.h
@@ -38,5 +38,5 @@ extern void inet6_csk_reqsk_queue_hash_add(struct sock *sk,
extern void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr);
-extern int inet6_csk_xmit(struct sk_buff *skb, int ipfragok);
+extern int inet6_csk_xmit(struct sk_buff *skb, struct sock *sk, int ipfragok);
#endif /* _INET6_CONNECTION_SOCK_H */
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index 0bcf9f237e1..fd3f1d8cdc4 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -36,7 +36,8 @@ struct tcp_congestion_ops;
* (i.e. things that depend on the address family)
*/
struct inet_connection_sock_af_ops {
- int (*queue_xmit)(struct sk_buff *skb, int ipfragok);
+ int (*queue_xmit)(struct sk_buff *skb, struct sock *sk,
+ int ipfragok);
void (*send_check)(struct sock *sk, int len,
struct sk_buff *skb);
int (*rebuild_header)(struct sock *sk);
diff --git a/include/net/ip.h b/include/net/ip.h
index b6d95e55340..949fa868362 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -97,7 +97,7 @@ extern int ip_mc_output(struct sk_buff *skb);
extern int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *));
extern int ip_do_nat(struct sk_buff *skb);
extern void ip_send_check(struct iphdr *ip);
-extern int ip_queue_xmit(struct sk_buff *skb, int ipfragok);
+extern int ip_queue_xmit(struct sk_buff *skb, struct sock *sk, int ipfragok);
extern void ip_init(void);
extern int ip_append_data(struct sock *sk,
int getfrag(void *from, char *to, int offset, int len,