From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH 1/3] [UDP]: add udp_mem, udp_rmem_min and udp_wmem_min
Date: Mon, 31 Dec 2007 04:13:42 -0800 (PST)
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From: Eric Dumazet <dada1@cosmosbay.com>
Date: Mon, 31 Dec 2007 09:54:32 +0100

> Maybe I read the patch incorrectly, or we could add some new sysctl so that
> we not try to uncharge memory if a socket 'forward_alloc' is beyond a given 
> limit (say 2 pages), so that number of atomic_inc/dec on udp_memory_allocated 
> (or tcp_memory_allocated) is reduced.

This is what we should be striving for, using forward_alloc
as much as possible as a "cache" to avoid the atomics on
the global var as much as possible.