This is a note to let you know that I've just added the patch titled
tcp: fixing TLP's FIN recovery
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
tcp-fixing-tlp-s-fin-recovery.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Sun Oct 12 16:38:53 CEST 2014
From: Per Hurtig <per.hurtig@xxxxxx>
Date: Thu, 12 Jun 2014 17:08:32 +0200
Subject: tcp: fixing TLP's FIN recovery
From: Per Hurtig <per.hurtig@xxxxxx>
[ Upstream commit bef1909ee3ed1ca39231b260a8d3b4544ecd0c8f ]
Fix to a problem observed when losing a FIN segment that does not
contain data. In such situations, TLP is unable to recover from
*any* tail loss and instead adds at least PTO ms to the
retransmission process, i.e., RTO = RTO + PTO.
Signed-off-by: Per Hurtig <per.hurtig@xxxxxx>
Signed-off-by: Eric Dumazet <edumazet@xxxxxxxxxx>
Acked-by: Nandita Dukkipati <nanditad@xxxxxxxxxx>
Acked-by: Neal Cardwell <ncardwell@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/ipv4/tcp_output.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2069,9 +2069,7 @@ void tcp_send_loss_probe(struct sock *sk
if (WARN_ON(!skb || !tcp_skb_pcount(skb)))
goto rearm_timer;
- /* Probe with zero data doesn't trigger fast recovery. */
- if (skb->len > 0)
- err = __tcp_retransmit_skb(sk, skb);
+ err = __tcp_retransmit_skb(sk, skb);
/* Record snd_nxt for loss detection. */
if (likely(!err))
Patches currently in stable-queue which might be from per.hurtig@xxxxxx are
queue-3.14/tcp-fixing-tlp-s-fin-recovery.patch
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