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[TCP]: less inline's

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TCP inline usage cleanup:
 * get rid of inline in several places
 * replace __inline__ with inline where possible
 * move functions used in one file out of tcp.h
 * let compiler decide on used once cases

On x86_64: 
   text	   data	    bss	    dec	    hex	filename
3594701	 648348	 567400	4810449	 4966d1	vmlinux.orig
3593133	 648580	 567400	4809113	 496199	vmlinux

On sparc64:
   text	   data	    bss	    dec	    hex	filename
2538278	 406152	 530392	3474822	 350586	vmlinux.ORIG
2536382	 406384	 530392	3473158	 34ff06	vmlinux

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger
2006-01-03 16:03:49 -08:00
committed by David S. Miller
parent 3c19065a1e
commit 40efc6fa17
5 changed files with 198 additions and 201 deletions
Download Patch File Download Diff File Expand all files Collapse all files

87
net/ipv4/tcp_output.c
View File

@@ -51,8 +51,8 @@ int sysctl_tcp_retrans_collapse = 1;
*/
int sysctl_tcp_tso_win_divisor = 3;
static inline void update_send_head(struct sock *sk, struct tcp_sock *tp,
struct sk_buff *skb)
static void update_send_head(struct sock *sk, struct tcp_sock *tp,
struct sk_buff *skb)
{
sk->sk_send_head = skb->next;
if (sk->sk_send_head == (struct sk_buff *)&sk->sk_write_queue)
@@ -124,8 +124,8 @@ static void tcp_cwnd_restart(struct sock *sk, struct dst_entry *dst)
tp->snd_cwnd_used = 0;
}
static inline void tcp_event_data_sent(struct tcp_sock *tp,
struct sk_buff *skb, struct sock *sk)
static void tcp_event_data_sent(struct tcp_sock *tp,
struct sk_buff *skb, struct sock *sk)
{
struct inet_connection_sock *icsk = inet_csk(sk);
const u32 now = tcp_time_stamp;
@@ -142,7 +142,7 @@ static inline void tcp_event_data_sent(struct tcp_sock *tp,
icsk->icsk_ack.pingpong = 1;
}
static __inline__ void tcp_event_ack_sent(struct sock *sk, unsigned int pkts)
static inline void tcp_event_ack_sent(struct sock *sk, unsigned int pkts)
{
tcp_dec_quickack_mode(sk, pkts);
inet_csk_clear_xmit_timer(sk, ICSK_TIME_DACK);
@@ -212,7 +212,7 @@ void tcp_select_initial_window(int __space, __u32 mss,
* value can be stuffed directly into th->window for an outgoing
* frame.
*/
static __inline__ u16 tcp_select_window(struct sock *sk)
static u16 tcp_select_window(struct sock *sk)
{
struct tcp_sock *tp = tcp_sk(sk);
u32 cur_win = tcp_receive_window(tp);
@@ -250,6 +250,75 @@ static __inline__ u16 tcp_select_window(struct sock *sk)
return new_win;
}
static void tcp_build_and_update_options(__u32 *ptr, struct tcp_sock *tp,
__u32 tstamp)
{
if (tp->rx_opt.tstamp_ok) {
*ptr++ = __constant_htonl((TCPOPT_NOP << 24) |
(TCPOPT_NOP << 16) |
(TCPOPT_TIMESTAMP << 8) |
TCPOLEN_TIMESTAMP);
*ptr++ = htonl(tstamp);
*ptr++ = htonl(tp->rx_opt.ts_recent);
}
if (tp->rx_opt.eff_sacks) {
struct tcp_sack_block *sp = tp->rx_opt.dsack ? tp->duplicate_sack : tp->selective_acks;
int this_sack;
*ptr++ = htonl((TCPOPT_NOP << 24) |
(TCPOPT_NOP << 16) |
(TCPOPT_SACK << 8) |
(TCPOLEN_SACK_BASE + (tp->rx_opt.eff_sacks *
TCPOLEN_SACK_PERBLOCK)));
for(this_sack = 0; this_sack < tp->rx_opt.eff_sacks; this_sack++) {
*ptr++ = htonl(sp[this_sack].start_seq);
*ptr++ = htonl(sp[this_sack].end_seq);
}
if (tp->rx_opt.dsack) {
tp->rx_opt.dsack = 0;
tp->rx_opt.eff_sacks--;
}
}
}
/* Construct a tcp options header for a SYN or SYN_ACK packet.
* If this is every changed make sure to change the definition of
* MAX_SYN_SIZE to match the new maximum number of options that you
* can generate.
*/
static void tcp_syn_build_options(__u32 *ptr, int mss, int ts, int sack,
int offer_wscale, int wscale, __u32 tstamp,
__u32 ts_recent)
{
/* We always get an MSS option.
* The option bytes which will be seen in normal data
* packets should timestamps be used, must be in the MSS
* advertised. But we subtract them from tp->mss_cache so
* that calculations in tcp_sendmsg are simpler etc.
* So account for this fact here if necessary. If we
* don't do this correctly, as a receiver we won't
* recognize data packets as being full sized when we
* should, and thus we won't abide by the delayed ACK
* rules correctly.
* SACKs don't matter, we never delay an ACK when we
* have any of those going out.
*/
*ptr++ = htonl((TCPOPT_MSS << 24) | (TCPOLEN_MSS << 16) | mss);
if (ts) {
if(sack)
*ptr++ = __constant_htonl((TCPOPT_SACK_PERM << 24) | (TCPOLEN_SACK_PERM << 16) |
(TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP);
else
*ptr++ = __constant_htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |
(TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP);
*ptr++ = htonl(tstamp); /* TSVAL */
*ptr++ = htonl(ts_recent); /* TSECR */
} else if(sack)
*ptr++ = __constant_htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |
(TCPOPT_SACK_PERM << 8) | TCPOLEN_SACK_PERM);
if (offer_wscale)
*ptr++ = htonl((TCPOPT_NOP << 24) | (TCPOPT_WINDOW << 16) | (TCPOLEN_WINDOW << 8) | (wscale));
}
/* This routine actually transmits TCP packets queued in by
* tcp_do_sendmsg(). This is used by both the initial
@@ -724,7 +793,7 @@ unsigned int tcp_current_mss(struct sock *sk, int large_allowed)
/* Congestion window validation. (RFC2861) */
static inline void tcp_cwnd_validate(struct sock *sk, struct tcp_sock *tp)
static void tcp_cwnd_validate(struct sock *sk, struct tcp_sock *tp)
{
__u32 packets_out = tp->packets_out;
@@ -773,7 +842,7 @@ static inline unsigned int tcp_cwnd_test(struct tcp_sock *tp, struct sk_buff *sk
/* This must be invoked the first time we consider transmitting
* SKB onto the wire.
*/
static inline int tcp_init_tso_segs(struct sock *sk, struct sk_buff *skb, unsigned int mss_now)
static int tcp_init_tso_segs(struct sock *sk, struct sk_buff *skb, unsigned int mss_now)
{
int tso_segs = tcp_skb_pcount(skb);
@@ -1794,7 +1863,7 @@ struct sk_buff * tcp_make_synack(struct sock *sk, struct dst_entry *dst,
/*
* Do all connect socket setups that can be done AF independent.
*/
static inline void tcp_connect_init(struct sock *sk)
static void tcp_connect_init(struct sock *sk)
{
struct dst_entry *dst = __sk_dst_get(sk);
struct tcp_sock *tp = tcp_sk(sk);