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Message-ID: <4A3055B3.4070202@zytor.com>
Date: Wed, 10 Jun 2009 17:54:11 -0700
From: "H. Peter Anvin" <hpa@...or.com>
To: Huang Ying <ying.huang@...el.com>
CC: Steven Rostedt <rostedt@...dmis.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Ingo Molnar <mingo@...e.hu>,
Andrew Morton <akpm@...ux-foundation.org>,
Thomas Gleixner <tglx@...utronix.de>,
Peter Zijlstra <peterz@...radead.org>,
Frederic Weisbecker <fweisbec@...il.com>,
Theodore Tso <tytso@....edu>,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Mathieu Desnoyers <compudj@...stal.dyndns.org>,
Lai Jiangshan <laijs@...fujitsu.com>,
"Martin J. Bligh" <mbligh@...igh.org>,
Christoph Hellwig <hch@...radead.org>,
Li Zefan <lizf@...fujitsu.com>,
Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>,
Masami Hiramatsu <mhiramat@...hat.com>
Subject: Re: [PATCH 3/3] ring-buffer: add design document
Huang Ying wrote:
>
> As far as I know, some architectures have no hardware assisted (NMI
> safe) cmpxchg. Is it OK to use cmpxchg in architecture-independent code?
>
Including the i386.
-hpa
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