From: Daniel Walker <dwalker@fifo99.com>
To: Jack Steiner <steiner@sgi.com>
Cc: mingo@elte.hu, tglx@linutronix.de, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86: SGU UV Add volatile to macros that access chipset registers
Date: Wed, 09 Sep 2009 09:10:00 -0700 [thread overview]
Message-ID: <1252512600.14793.125.camel@desktop> (raw)
In-Reply-To: <20090909154246.GA26716@sgi.com>
On Wed, 2009-09-09 at 10:42 -0500, Jack Steiner wrote:
> Add "volatile" to the SGI UV read/write macros that are used to access chipset
> memory mapped registers.
There is a considerable document regarding the usage of volatile in the
kernel (Documentation/volatile-considered-harmful.txt). Considering that
document, can you give a more descriptive reason why your using
"volatile" here ?
Daniel
next prev parent reply other threads:[~2009-09-09 16:09 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-09 15:42 [PATCH] x86: SGU UV Add volatile to macros that access chipset registers Jack Steiner
2009-09-09 16:10 ` Daniel Walker [this message]
2009-09-09 18:01 ` Jack Steiner
2009-09-09 18:11 ` Daniel Walker
2009-09-09 18:54 ` Chris Friesen
2009-09-09 19:38 ` Jack Steiner
2009-09-10 0:44 ` H. Peter Anvin
2009-09-10 2:21 ` Jack Steiner
2009-09-10 2:22 ` [PATCH V2] x86: SGU UV Add volatile semantics " Jack Steiner
2009-09-10 3:05 ` H. Peter Anvin
2009-09-10 3:23 ` Jack Steiner
2009-09-10 14:31 ` [PATCH V3] " Jack Steiner
2009-09-10 14:31 ` Jack Steiner
2009-09-18 12:06 ` [tip:x86/urgent] x86: SGI UV: " tip-bot for Jack Steiner
2009-09-09 19:20 ` [PATCH] x86: SGU UV Add volatile " Jack Steiner
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