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Date: Fri, 8 May 2015 16:23:26 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Will Deacon <will.deacon@arm.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>, Ingo Molnar <mingo@kernel.org>,
        David Ahern <dsahern@gmail.com>, Jiri Olsa <jolsa@redhat.com>,
        Namhyung Kim <namhyung@gmail.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Question about barriers for ARM on tools/perf/
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 <20150508142156.GB25587@arm.com>
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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..