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authorEric Dumazet <edumazet@google.com>2013-10-10 08:43:00 -0700
committerDavid S. Miller <davem@davemloft.net>2013-10-11 17:48:18 -0400
commitccdbb6e96beca362db876d820ac1e560ff6d9579 (patch)
tree1ced2e6547f027d1417cb408142ce10c4f956754 /net/decnet
parent29b67c39dc6e7ec4fdf78c620675de761971cd28 (diff)
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op-kernel-dev-ccdbb6e96beca362db876d820ac1e560ff6d9579.tar.gz
tcp: tcp_transmit_skb() optimizations
1) We need to take a timestamp only for skb that should be cloned. Other skbs are not in write queue and no rtt estimation is done on them. 2) the unlikely() hint is wrong for receivers (they send pure ACK) Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: MF Nowlan <fitz@cs.yale.edu> Cc: Yuchung Cheng <ycheng@google.com> Cc: Neal Cardwell <ncardwell@google.com> Acked-By: Yuchung Cheng <ycheng@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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