From: Michael Schnell <mschnell@lumino.de>
To: "Leonidas ." <leonidas137@gmail.com>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>,
Noah Watkins <noah@noahdesu.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Difference between atomic operations and memory barriers
Date: Tue, 27 Oct 2009 12:01:38 +0100 [thread overview]
Message-ID: <4AE6D312.9040803@lumino.de> (raw)
In-Reply-To: <f22d86810910270323m6e004576ya4da96afc02e3d07@mail.gmail.com>
Leonidas . wrote:
> but pointer
> assignment would still be atomic.
>
Yep. bit maybe the assignment to the memory cell that holds the pointer
just would be optimized out and be done at all. This my be considered
atomic but of course not desired for anything atomicness is considered for.
-Michael
next prev parent reply other threads:[~2009-10-27 11:01 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-26 17:19 Difference between atomic operations and memory barriers Leonidas .
[not found] ` <7ADB5FD7-9C97-4987-BC20-997258B25FD2@noahdesu.com>
2009-10-26 18:22 ` Leonidas .
2009-10-26 18:54 ` Chris Friesen
2009-10-26 19:00 ` Leonidas .
2009-10-26 19:07 ` Noah Watkins
2009-10-26 19:34 ` Stefan Richter
2009-10-26 19:42 ` Noah Watkins
2009-10-27 11:51 ` Valdis.Kletnieks
2009-10-28 10:00 ` Boaz Harrosh
2009-10-28 13:26 ` Valdis.Kletnieks
2009-10-26 19:00 ` Stefan Richter
2009-10-26 19:05 ` Leonidas .
2009-10-27 10:21 ` Michael Schnell
2009-10-27 10:23 ` Leonidas .
2009-10-27 11:01 ` Michael Schnell [this message]
2009-10-27 14:57 ` Stefan Richter
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