netdev - Re: [PATCH net-next] tcp: better use ooo_last_skb in tcp_data_queue

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Message-Id: <20160910.214359.2171314938577710732.davem@davemloft.net>
Date:   Sat, 10 Sep 2016 21:43:59 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     eric.dumazet@...il.com
Cc:     netdev@...r.kernel.org, willemb@...gle.com, wygivan@...gle.com,
        ycheng@...gle.com, ncardwell@...gle.com, ilpo.jarvinen@...sinki.fi
Subject: Re: [PATCH net-next] tcp: better use ooo_last_skb in
 tcp_data_queue_ofo()

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Fri, 09 Sep 2016 14:22:45 -0700

> From: Eric Dumazet <edumazet@...gle.com>
> 
> Willem noticed that we could avoid an rbtree lookup if the
> the attempt to coalesce incoming skb to the last skb failed
> for some reason.
> 
> Since most ooo additions are at the tail, this is definitely
> worth adding a test and fast path.
> 
> Suggested-by: Willem de Bruijn <willemb@...gle.com>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied, thanks.