linux/include/net/inet6_connection_sock.h
David S. Miller 931731123a [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>
2006-12-02 21:21:52 -08:00

42 lines
1.3 KiB
C

/*
* NET Generic infrastructure for INET6 connection oriented protocols.
*
* Authors: Many people, see the TCPv6 sources
*
* From code originally in TCPv6
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _INET6_CONNECTION_SOCK_H
#define _INET6_CONNECTION_SOCK_H
#include <linux/types.h>
struct in6_addr;
struct inet_bind_bucket;
struct request_sock;
struct sk_buff;
struct sock;
struct sockaddr;
extern int inet6_csk_bind_conflict(const struct sock *sk,
const struct inet_bind_bucket *tb);
extern struct request_sock *inet6_csk_search_req(const struct sock *sk,
struct request_sock ***prevp,
const __be16 rport,
const struct in6_addr *raddr,
const struct in6_addr *laddr,
const int iif);
extern void inet6_csk_reqsk_queue_hash_add(struct sock *sk,
struct request_sock *req,
const unsigned long timeout);
extern void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr);
extern int inet6_csk_xmit(struct sk_buff *skb, struct sock *sk, int ipfragok);
#endif /* _INET6_CONNECTION_SOCK_H */