From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Morton <akpm@osdl.org>
Subject: Re: [patch 3/4] net: Percpufy frequently used variables --
 proto.sockets_allocated
Date: Fri, 27 Jan 2006 17:18:18 -0800
Message-ID: <20060127171818.365ef5fa.akpm@osdl.org>
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Cc: kiran@scalex86.org, davem@davemloft.net,
	linux-kernel@vger.kernel.org, shai@scalex86.org,
	netdev@vger.kernel.org, pravins@calsoftinc.com
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To: Eric Dumazet <dada1@cosmosbay.com>
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Eric Dumazet <dada1@cosmosbay.com> wrote:
>
> [PATCH] Add atomic_long_xchg() and atomic_long_cmpxchg() wrappers
> 
> ...
>  
> +static inline long atomic_long_xchg(atomic_long_t *l, long val)
> +{
> +	atomic64_t *v = (atomic64_t *)l;
> +	return atomic64_xchg(v, val);

All we need now is some implementations of atomic64_xchg()  ;)