netdev - Re: [PATCH net v2] sctp: linearize early if it's not GSO

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Date:   Fri, 19 Aug 2016 17:10:16 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     marcelo.leitner@...il.com
Cc:     netdev@...r.kernel.org, linux-sctp@...r.kernel.org,
        daniel@...earbox.net, nhorman@...driver.com, vyasevich@...il.com
Subject: Re: [PATCH net v2] sctp: linearize early if it's not GSO

From: Marcelo Ricardo Leitner <marcelo.leitner@...il.com>
Date: Thu, 18 Aug 2016 14:58:35 -0300

> Because otherwise when crc computation is still needed it's way more
> expensive than on a linear buffer to the point that it affects
> performance.
> 
> It's so expensive that netperf test gives a perf output as below:
 ...
> Fixes: 3acb50c18d8d ("sctp: delay as much as possible skb_linearize")
> Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@...il.com>

Applied and queued up for -stable.