netdev - Re: [PATCH] net: Abstract away all dst

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Message-ID: <1291879116.2795.51.camel@edumazet-laptop>
Date:	Thu, 09 Dec 2010 08:18:36 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH] net: Abstract away all dst_entry metrics accesses.

Le mercredi 08 décembre 2010 à 21:48 -0800, David Miller a écrit :
> Use helper functions to hide all direct accesses, especially writes,
> to dst_entry metrics values.
> 
> This will allow us to:
> 
> 1) More easily change how the metrics are stored.
> 
> 2) Implement COW for metrics.
> 
> In particular this will help us put metrics into the inetpeer
> cache if that is what we end up doing.  We can make the _metrics
> member a pointer instead of an array, initially have it point
> at the read-only metrics in the FIB, and then on the first set
> grab an inetpeer entry and point the _metrics member there.
> 
> Signed-off-by: David S. Miller <davem@...emloft.net>

Very exciting, thanks David !

Acked-by: Eric Dumazet <eric.dumazet@...il.com>


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