linux-kernel - Re: Question about barriers for ARM on tools/perf/

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Message-ID: <20150508142326.GL27504@twins.programming.kicks-ass.net>
Date:	Fri, 8 May 2015 16:23:26 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Will Deacon <will.deacon@....com>
Cc:	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ingo Molnar <mingo@...nel.org>,
	David Ahern <dsahern@...il.com>, Jiri Olsa <jolsa@...hat.com>,
	Namhyung Kim <namhyung@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Question about barriers for ARM on tools/perf/

On Fri, May 08, 2015 at 03:21:56PM +0100, Will Deacon wrote:
> > The dmb things include a fence for IO, the dsb are only for between
> > CPUs.
> > 
> > So for your work the dsb are fine.
> 
> Other way around ;)
> 

Duh..
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