linux-kernel - Re: [PATCH net-next-2.6] bonding, net: Move last

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Message-Id: <20081103.181703.04882118.davem@davemloft.net>
Date:	Mon, 03 Nov 2008 18:17:03 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	fubar@...ibm.com
Cc:	shemminger@...tta.com, dada1@...mosbay.com, zbr@...emap.net,
	ilpo.jarvinen@...sinki.fi, rjw@...k.pl, mingo@...e.hu,
	s0mbre@...rvice.net.ru, a.p.zijlstra@...llo.nl,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	efault@....de, akpm@...ux-foundation.org
Subject: Re: [PATCH net-next-2.6] bonding, net: Move last_rx update into
 bonding recv logic

From: Jay Vosburgh <fubar@...ibm.com>
Date: Mon, 03 Nov 2008 18:13:09 -0800

> 
> 	The only user of the net_device->last_rx field is bonding.  This
> patch adds a conditional update of last_rx to the bonding special logic
> in skb_bond_should_drop, causing last_rx to only be updated when the ARP
> monitor is running.
> 
> 	This frees network device drivers from the necessity of updating
> last_rx, which can have cache line thrash issues.
> 
> Signed-off-by: Jay Vosburgh <fubar@...ibm.com>

Applied, thanks a lot Jay.
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