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authorIlpo Järvinen <ilpo.jarvinen@helsinki.fi>2009-02-27 23:44:30 -0500
committerDavid S. Miller <davem@davemloft.net>2009-03-02 06:00:10 -0500
commitd3d2ae454501a4dec360995649e1b002a2ad90c5 (patch)
tree7177d441defb9f3293ad83f71a57081a7c62962b /net
parent62ad27619cbcf23fb8581ae72f3806c1d90a861d (diff)
tcp: Don't clear hints when tcp_fragmenting
1) We didn't remove any skbs, so no need to handle stale refs. 2) scoreboard_skb_hint is trivial, no timestamps were changed so no need to clear that one 3) lost_skb_hint needs tweaking similar to that of tcp_sacktag_one(). Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/tcp_output.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index fa3c81aa4e6a..3feab4d6929d 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -771,7 +771,6 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len,
771 771
772 BUG_ON(len > skb->len); 772 BUG_ON(len > skb->len);
773 773
774 tcp_clear_retrans_hints_partial(tp);
775 nsize = skb_headlen(skb) - len; 774 nsize = skb_headlen(skb) - len;
776 if (nsize < 0) 775 if (nsize < 0)
777 nsize = 0; 776 nsize = 0;
@@ -854,6 +853,12 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len,
854 tcp_verify_left_out(tp); 853 tcp_verify_left_out(tp);
855 } 854 }
856 tcp_adjust_fackets_out(sk, skb, diff); 855 tcp_adjust_fackets_out(sk, skb, diff);
856
857 if (tp->lost_skb_hint &&
858 before(TCP_SKB_CB(skb)->seq,
859 TCP_SKB_CB(tp->lost_skb_hint)->seq) &&
860 (tcp_is_fack(tp) || TCP_SKB_CB(skb)->sacked))
861 tp->lost_cnt_hint -= diff;
857 } 862 }
858 863
859 /* Link BUFF into the send queue. */ 864 /* Link BUFF into the send queue. */