netdev - Re: [Patch net-next] tcp_metrics: rearrange fields to avoid holes

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Message-ID: <1375240402.22980.5.camel@cr0>
Date:	Wed, 31 Jul 2013 11:13:22 +0800
From:	Cong Wang <amwang@...hat.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Yuchung Cheng <ycheng@...gle.com>,
	Neal Cardwell <ncardwell@...gle.com>
Subject: Re: [Patch net-next] tcp_metrics: rearrange fields to avoid holes

On Tue, 2013-07-30 at 20:08 -0700, Eric Dumazet wrote:
> 
> Oh well, this patch is pure noise...
> 
> 

Mind to be specific?

I know saving 8 bytes is not interesting for you, but it is for me,
since I need some room in struct tcp_metrics_block for union inet_addr.
With this patch, I don't have to make struct tcp_metrics_block expand to
3 cachelines. :)


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