Forwarded to linux-arch for comments.

It would be preferable if replies could go to the lkml
thread, but either way is fine.

Thanks,
Nick

-------- Original Message --------
Subject: [PATCH 2.6.13] lockless pagecache 2/7
Date: Fri, 02 Sep 2005 16:29:10 +1000
From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Linux Memory Management <linux-mm@kvack.org>,	linux-kernel <linux-kernel@vger.kernel.org>
References: <4317F071.1070403@yahoo.com.au> <4317F0F9.1080602@yahoo.com.au>

2/7
Implement atomic_cmpxchg for i386 and ppc64. Is there any
architecture that won't be able to implement such an operation?