Date: Wed, 6 Dec 2006 14:15:43 -0800 (PST)
From: Christoph Lameter <clameter@sgi.com>
To: Matthew Wilcox <matthew@wil.cx>
cc: David Howells <dhowells@redhat.com>, torvalds@osdl.org, akpm@osdl.org,
       linux-arm-kernel@lists.arm.linux.org.uk, linux-kernel@vger.kernel.org,
       linux-arch@vger.kernel.org
Subject: Re: [PATCH] WorkStruct: Implement generic UP cmpxchg() where an arch
 doesn't support it
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On Wed, 6 Dec 2006, Matthew Wilcox wrote:

> To be honest, it'd be much easier if we only defined these operations on
> atomic_t's.  We have all the infrastructure in place for them, and
> they're fairly well understood.  If you need different sizes, I'm OK
> with an atomic_pointer_t, or whatever.

An pointer is probably one of the most important entities to use with 
cmpxchg (aside from the ints and longs that we already support).

A pointer can be defined to point to any other type. So we would need
atomic_pointer_t(<type_pointed_to>)?
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