From: Roland Dreier <roland@topspin.com>
To: Bart De Schuymer <bdschuym@pandora.be>
Cc: linux-kernel@vger.kernel.org
Subject: Re: memory_barrier
Date: Sat, 09 Apr 2005 12:28:00 -0700 [thread overview]
Message-ID: <52d5t33g3j.fsf@topspin.com> (raw)
In-Reply-To: <1113071696.3383.7.camel@localhost.localdomain> (Bart De Schuymer's message of "Sat, 09 Apr 2005 18:34:56 +0000")
Bart> Hi, Is there any reason why __memory_barrier() is still
Bart> referenced in the kernel source?
Bart> grep -r memory_barrier gave the following back, which at
Bart> first seems to suggest barrier() is defined using some
Bart> phantom __memory_barrier(), quite deceiving...
Notice that it's used in <linux/compiler-intel.h> -- the Intel
compiler has an intrinsic called __memory_barrier(). So the
definition of barrier() using this intrinsic is entirely correct and
appropriate.
- R.
next prev parent reply other threads:[~2005-04-09 20:41 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-09 18:34 memory_barrier Bart De Schuymer
2005-04-09 19:28 ` Roland Dreier [this message]
[not found] <CAGr+u+x0EFE+a424my7CqtBh449f=q0J_j=oGbyoKk4diUR2ng@mail.gmail.com>
2011-12-09 7:24 ` Memory barrier trisha yad
2011-12-09 7:50 ` 卜弋天
2011-12-09 8:42 ` trisha yad
2011-12-09 8:44 ` trisha yad
2011-12-09 10:07 ` 卜弋天
2011-12-22 10:44 ` Vladimir Murzin
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