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From: Len Brown <len.brown@intel.com>
To: Willy Tarreau <willy@w.ods.org>
Cc: Arkadiusz Miskiewicz <arekm@pld-linux.org>,
	Marcelo Tosatti <marcelo.tosatti@cyclades.com>,
	linux-kernel@vger.kernel.org,
	ACPI Developers <acpi-devel@lists.sourceforge.net>
Subject: Re: Linux 2.4.26-rc1 (cmpxchg vs 80386 build)
Date: 29 Mar 2004 17:07:42 -0500	[thread overview]
Message-ID: <1080598062.983.3.camel@dhcppc4> (raw)
In-Reply-To: <20040329052238.GD1276@alpha.home.local>

On Mon, 2004-03-29 at 00:22, Willy Tarreau wrote:

> > 4. re-implement locks for the 80386 case.
> 
> I like this one, but a simpler way : don't support SMP in this case, so that
> we won't have to play with locks. This would lead to something like this :

Linux uses this locking mechanism to coordinate shared access
to hardware registers with embedded controllers,
which is true also on uniprocessors too.

thanks,
-Len



  parent reply	other threads:[~2004-03-29 22:08 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <A6974D8E5F98D511BB910002A50A6647615F6939@hdsmsx402.hd.intel.com>
2004-03-29  4:49 ` Linux 2.4.26-rc1 (cmpxchg vs 80386 build) Len Brown
2004-03-29  0:09   ` [ACPI] " Andi Kleen
2004-03-29  5:22   ` Willy Tarreau
2004-03-29  7:01     ` Denis Vlasenko
2004-03-29 19:57       ` Willy Tarreau
2004-03-29 22:07     ` Len Brown [this message]
2004-03-30 12:56       ` [ACPI] " Alan Cox
2004-03-30 13:15         ` Richard B. Johnson
2004-03-30 14:22           ` Willy Tarreau
2004-03-30 14:48             ` Richard B. Johnson
2004-03-30 15:09               ` Willy Tarreau
2004-03-30 15:33                 ` Richard B. Johnson
2004-03-30 16:14                   ` Willy Tarreau
2004-03-30 16:42                     ` Chris Friesen
2004-03-30 17:44                       ` Len Brown
2004-03-30 18:30                         ` Arkadiusz Miskiewicz
2004-03-30 20:05                           ` Len Brown
2004-03-30 20:25                             ` Arkadiusz Miskiewicz
2004-03-30 21:49                               ` Len Brown
2004-03-30 20:08                         ` Bill Davidsen
2004-03-31 11:13                           ` Maciej W. Rozycki
2004-03-31 13:04                             ` Bill Davidsen
2004-03-31 15:02                             ` Jamie Lokier
2004-04-01 12:29                               ` Maciej W. Rozycki
2004-04-01 13:17                                 ` Richard B. Johnson
2004-05-08 10:18                                   ` Denis Vlasenko
2004-04-01 20:46                                 ` Len Brown
2004-04-02 10:54                                   ` Maciej W. Rozycki

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