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Subject: Re: What does atomic_read actually do?
From: Robert Love <rml@novell.com>
To: Joseph Seigh <jseigh_02@xemaps.com>
Cc: linux-kernel@vger.kernel.org
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Date: Sun, 19 Dec 2004 17:21:06 -0500
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On Sat, 2004-12-18 at 15:43 -0500, Joseph Seigh wrote:

> > it does so on *x86
> 
> Is this documented for gcc anywhere?  Just because it does so doesn't
> mean it's guaranteed.

Listen to what Arjan is saying: It is not a compiler feature.  x86
already guarantees that an aligned word-size read is atomic in the
nothing-can-interleave sense.

	Robert Love