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tcp: tcp_set_skb_tso_segs() no longer need struct sock parameter 

tcp_set_skb_tso_segs() & tcp_init_tso_segs() no longer
use the sock pointer.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2015-06-11 09:15:17 -07:00 committed by David S. Miller
parent 51466a7545
commit 5bbb432c89
1 changed files with 14 additions and 16 deletions
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30
net/ipv4/tcp_output.c
View File

@ -1066,8 +1066,7 @@ static void tcp_queue_skb(struct sock *sk, struct sk_buff *skb)
}
/* Initialize TSO segments for a packet. */
static void tcp_set_skb_tso_segs(const struct sock *sk, struct sk_buff *skb,
unsigned int mss_now)
static void tcp_set_skb_tso_segs(struct sk_buff *skb, unsigned int mss_now)
{
struct skb_shared_info *shinfo = skb_shinfo(skb);
@ -1214,8 +1213,8 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len,
old_factor = tcp_skb_pcount(skb);
/* Fix up tso_factor for both original and new SKB. */
tcp_set_skb_tso_segs(sk, skb, mss_now);
tcp_set_skb_tso_segs(sk, buff, mss_now);
tcp_set_skb_tso_segs(skb, mss_now);
tcp_set_skb_tso_segs(buff, mss_now);
/* If this packet has been sent out already, we must
* adjust the various packet counters.
@ -1295,7 +1294,7 @@ int tcp_trim_head(struct sock *sk, struct sk_buff *skb, u32 len)
/* Any change of skb->len requires recalculation of tso factor. */
if (tcp_skb_pcount(skb) > 1)
tcp_set_skb_tso_segs(sk, skb, tcp_skb_mss(skb));
tcp_set_skb_tso_segs(skb, tcp_skb_mss(skb));
return 0;
}
@ -1627,13 +1626,12 @@ static inline unsigned int tcp_cwnd_test(const struct tcp_sock *tp,
* This must be invoked the first time we consider transmitting
* SKB onto the wire.
*/
static int tcp_init_tso_segs(const struct sock *sk, struct sk_buff *skb,
unsigned int mss_now)
static int tcp_init_tso_segs(struct sk_buff *skb, unsigned int mss_now)
{
int tso_segs = tcp_skb_pcount(skb);
if (!tso_segs || (tso_segs > 1 && tcp_skb_mss(skb) != mss_now)) {
tcp_set_skb_tso_segs(sk, skb, mss_now);
tcp_set_skb_tso_segs(skb, mss_now);
tso_segs = tcp_skb_pcount(skb);
}
return tso_segs;
@ -1688,7 +1686,7 @@ static unsigned int tcp_snd_test(const struct sock *sk, struct sk_buff *skb,
const struct tcp_sock *tp = tcp_sk(sk);
unsigned int cwnd_quota;
tcp_init_tso_segs(sk, skb, cur_mss);
tcp_init_tso_segs(skb, cur_mss);
if (!tcp_nagle_test(tp, skb, cur_mss, nonagle))
return 0;
@ -1757,8 +1755,8 @@ static int tso_fragment(struct sock *sk, struct sk_buff *skb, unsigned int len,
tcp_fragment_tstamp(skb, buff);
/* Fix up tso_factor for both original and new SKB. */
tcp_set_skb_tso_segs(sk, skb, mss_now);
tcp_set_skb_tso_segs(sk, buff, mss_now);
tcp_set_skb_tso_segs(skb, mss_now);
tcp_set_skb_tso_segs(buff, mss_now);
/* Link BUFF into the send queue. */
__skb_header_release(buff);
@ -1992,7 +1990,7 @@ static int tcp_mtu_probe(struct sock *sk)
skb->len, 0);
} else {
__pskb_trim_head(skb, copy);
tcp_set_skb_tso_segs(sk, skb, mss_now);
tcp_set_skb_tso_segs(skb, mss_now);
}
TCP_SKB_CB(skb)->seq += copy;
}
@ -2002,7 +2000,7 @@ static int tcp_mtu_probe(struct sock *sk)
if (len >= probe_size)
break;
}
tcp_init_tso_segs(sk, nskb, nskb->len);
tcp_init_tso_segs(nskb, nskb->len);
/* We're ready to send. If this fails, the probe will
* be resegmented into mss-sized pieces by tcp_write_xmit().
@ -2064,7 +2062,7 @@ static bool tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle,
while ((skb = tcp_send_head(sk))) {
unsigned int limit;
tso_segs = tcp_init_tso_segs(sk, skb, mss_now);
tso_segs = tcp_init_tso_segs(skb, mss_now);
BUG_ON(!tso_segs);
if (unlikely(tp->repair) && tp->repair_queue == TCP_SEND_QUEUE) {
@ -2618,7 +2616,7 @@ int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
if (unlikely(oldpcount > 1)) {
if (skb_unclone(skb, GFP_ATOMIC))
return -ENOMEM;
tcp_init_tso_segs(sk, skb, cur_mss);
tcp_init_tso_segs(skb, cur_mss);
tcp_adjust_pcount(sk, skb, oldpcount - tcp_skb_pcount(skb));
}
}
@ -3455,7 +3453,7 @@ int tcp_write_wakeup(struct sock *sk, int mib)
if (tcp_fragment(sk, skb, seg_size, mss, GFP_ATOMIC))
return -1;
} else if (!tcp_skb_pcount(skb))
tcp_set_skb_tso_segs(sk, skb, mss);
tcp_set_skb_tso_segs(skb, mss);
TCP_SKB_CB(skb)->tcp_flags |= TCPHDR_PSH;
err = tcp_transmit_skb(sk, skb, 1, GFP_ATOMIC);