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tcp: Partial hint clearing has again become meaningless

Browse source 
Ie., the difference between partial and all clearing doesn't
exists anymore since the SACK optimizations got dropped by
an sacktag rewrite.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ilpo Järvinen 2008-09-20 21:18:32 -07:00 committed by David S. Miller
parent d950f264ff
commit 64edc2736e
3 changed files with 5 additions and 11 deletions
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7
include/net/tcp.h
View file

@ -1035,7 +1035,7 @@ static inline void tcp_mib_init(struct net *net)
}
/* from STCP */
static inline void tcp_clear_retrans_hints_partial(struct tcp_sock *tp)
static inline void tcp_clear_all_retrans_hints(struct tcp_sock *tp)
{
tp->lost_skb_hint = NULL;
tp->scoreboard_skb_hint = NULL;
@ -1043,11 +1043,6 @@ static inline void tcp_clear_retrans_hints_partial(struct tcp_sock *tp)
tp->forward_skb_hint = NULL;
}
static inline void tcp_clear_all_retrans_hints(struct tcp_sock *tp)
{
tcp_clear_retrans_hints_partial(tp);
}
/* MD5 Signature */
struct crypto_hash;

5
net/ipv4/tcp_input.c
View file

@ -1883,7 +1883,7 @@ static void tcp_enter_frto_loss(struct sock *sk, int allowed_segments, int flag)
tp->high_seq = tp->snd_nxt;
TCP_ECN_queue_cwr(tp);
tcp_clear_retrans_hints_partial(tp);
tcp_clear_all_retrans_hints(tp);
}
static void tcp_clear_retrans_partial(struct tcp_sock *tp)
@ -1934,12 +1934,11 @@ void tcp_enter_loss(struct sock *sk, int how)
/* Push undo marker, if it was plain RTO and nothing
* was retransmitted. */
tp->undo_marker = tp->snd_una;
tcp_clear_retrans_hints_partial(tp);
} else {
tp->sacked_out = 0;
tp->fackets_out = 0;
tcp_clear_all_retrans_hints(tp);
}
tcp_clear_all_retrans_hints(tp);
tcp_for_write_queue(skb, sk) {
if (skb == tcp_send_head(sk))

4
net/ipv4/tcp_output.c
View file

@ -750,7 +750,7 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len,
BUG_ON(len > skb->len);
tcp_clear_retrans_hints_partial(tp);
tcp_clear_all_retrans_hints(tp);
nsize = skb_headlen(skb) - len;
if (nsize < 0)
nsize = 0;
@ -1823,7 +1823,7 @@ static void tcp_retrans_try_collapse(struct sock *sk, struct sk_buff *skb,
tp->packets_out -= tcp_skb_pcount(next_skb);
/* changed transmit queue under us so clear hints */
tcp_clear_retrans_hints_partial(tp);
tcp_clear_all_retrans_hints(tp);
sk_wmem_free_skb(sk, next_skb);
}