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authorIlpo Järvinen <ilpo.jarvinen@helsinki.fi>2007-10-11 17:36:13 -0700
committerDavid S. Miller <davem@davemloft.net>2007-10-11 17:36:13 -0700
commitb08d6cb22c777c8c91c16d8e3b8aafc93c98cbd9 (patch)
tree139b1f2636c42698bd7b0f0ccd61f0e1b8a826ab /net/ipv4/tcp_output.c
parentf785a8e28b9d103c7473655743b6ac1bc3cd3a58 (diff)
downloadlinux-b08d6cb22c777c8c91c16d8e3b8aafc93c98cbd9.tar.bz2
[TCP]: Limit processing lost_retrans loop to work-to-do cases
This addition of lost_retrans_low to tcp_sock might be unnecessary, it's not clear how often lost_retrans worker is executed when there wasn't work to do. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_output.c')
-rw-r--r--net/ipv4/tcp_output.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 53296753b0bd..324b4207254a 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1914,6 +1914,8 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
printk(KERN_DEBUG "retrans_out leaked.\n");
}
#endif
+ if (!tp->retrans_out)
+ tp->lost_retrans_low = tp->snd_nxt;
TCP_SKB_CB(skb)->sacked |= TCPCB_RETRANS;
tp->retrans_out += tcp_skb_pcount(skb);