tcp: refresh skb timestamp at retransmit time

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[ Upstream commit 10a81980fc ]

In the very unlikely case __tcp_retransmit_skb() can not use the cloning
done in tcp_transmit_skb(), we need to refresh skb_mstamp before doing
the copy and transmit, otherwise TCP TS val will be an exact copy of
original transmit.

Fixes: 7faee5c0d5 ("tcp: remove TCP_SKB_CB(skb)->when")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Eric Dumazet 2016-05-09 20:55:16 -07:00 • committed by Greg Kroah-Hartman

parent a7ddb04779

commit 2cddc95adf

1 changed files with 4 additions and 2 deletions

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net/ipv4/tcp_output.c

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