netdev - [PATCH net-next 0/5] tcp: defer shinfo->gso

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Message-Id: <1434039319-31309-1-git-send-email-edumazet@google.com>
Date:	Thu, 11 Jun 2015 09:15:14 -0700
From:	Eric Dumazet <edumazet@...gle.com>
To:	"David S. Miller" <davem@...emloft.net>
Cc:	netdev <netdev@...r.kernel.org>,
	Neal Cardwell <ncardwell@...gle.com>,
	Yuchung Cheng <ycheng@...gle.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Eric Dumazet <edumazet@...il.com>
Subject: [PATCH net-next 0/5] tcp: defer shinfo->gso_size|type settings

We put shinfo->gso_segs in TCP_SKB_CB(skb) a while back for performance
reasons.

This was in commit cd7d8498c9a5 ("tcp: change tcp_skb_pcount() location")

This patch series complete the job for gso_size and gso_type, so that
we do not bring 2 extra cache lines in tcp write xmit fast path,
and making tcp_init_tso_segs() simpler and faster.

Eric Dumazet (5):
  tcp: reserve tcp_skb_mss() to tcp stack
  tcp: fill shinfo->gso_type at last moment
  tcp: tcp_set_skb_tso_segs() no longer need struct sock parameter
  tcp: fill shinfo->gso_size at last moment
  tcp: remove obsolete check in tcp_set_skb_tso_segs()

 include/net/tcp.h      | 13 ++++++++-----
 net/ipv4/tcp_input.c   | 14 +++++---------
 net/ipv4/tcp_offload.c |  4 ++--
 net/ipv4/tcp_output.c  | 49 +++++++++++++++++++------------------------------
 4 files changed, 34 insertions(+), 46 deletions(-)

-- 
2.2.0.rc0.207.ga3a616c

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