netdev - Re: [TCP] Avoid two divides in tcp

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Message-Id: <20071220.214017.123924372.davem@davemloft.net>
Date:	Thu, 20 Dec 2007 21:40:17 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	dada1@...mosbay.com
Cc:	netdev@...r.kernel.org
Subject: Re: [TCP] Avoid two divides in tcp_output.c

From: Eric Dumazet <dada1@...mosbay.com>
Date: Fri, 21 Dec 2007 06:34:28 +0100

> Because 'free_space' variable in __tcp_select_window() is signed,
> expression (free_space / 2) forces compiler to emit an integer divide.
> 
> This can be changed to a plain right shift, less expensive.
> 
> Signed-off-by: Eric Dumazet <dada1@...mosbay.com>

Applied to net-2.6.25, thanks Eric.
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