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From: Larry McVoy <lm@bitmover.com>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: Ingo Molnar <mingo@elte.hu>,
	Rusty Russell <rusty@rustcorp.com.au>,
	Matthew Kirkwood <matthew@hairy.beasts.org>,
	Benjamin LaHaise <bcrl@redhat.com>,
	David Axmark <david@mysql.com>,
	William Lee Irwin III <wli@holomorphy.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Lightweight userspace semaphores...
Date: Sat, 23 Feb 2002 10:28:05 -0800	[thread overview]
Message-ID: <20020223102805.F11156@work.bitmover.com> (raw)
In-Reply-To: <Pine.LNX.4.33.0202231551300.4173-100000@localhost.localdomain> <Pine.LNX.4.33.0202231017310.9185-100000@home.transmeta.com>
In-Reply-To: <Pine.LNX.4.33.0202231017310.9185-100000@home.transmeta.com>; from torvalds@transmeta.com on Sat, Feb 23, 2002 at 10:20:04AM -0800

> Also, one thing possibly worth looking into is to just put the actual
> semaphore contents into a regular file backed setup.
> 
> 		Linus

Exactly.  SMP gives you coherent memory and test-and-set or some other
atomic operation.  Why not use it?
-- 
---
Larry McVoy            	 lm at bitmover.com           http://www.bitmover.com/lm 

  reply	other threads:[~2002-02-23 18:28 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-02-23  3:47 [PATCH] Lightweight userspace semaphores Rusty Russell
2002-02-23 15:03 ` Ingo Molnar
2002-02-23 18:20   ` Linus Torvalds
2002-02-23 18:28     ` Larry McVoy [this message]
2002-02-23 20:31       ` Ingo Molnar
2002-02-23 21:22       ` Alan Cox
2002-02-26 16:09     ` Hubertus Franke
2002-02-24 23:29   ` Rusty Russell
2002-02-24 23:48     ` Linus Torvalds
2002-02-25  1:10       ` Rusty Russell
2002-02-25  1:23         ` Linus Torvalds
2002-02-25 13:14           ` Alan Cox
2002-02-25 16:11             ` Linus Torvalds
2002-02-25 16:39               ` Alan Cox
2002-02-25 16:32                 ` Benjamin LaHaise
2002-02-25 17:42                   ` Alan Cox
2002-02-25 18:23                   ` Hubertus Franke
2002-02-25 20:57                     ` Hubertus Franke
2002-03-03  7:07                   ` Rusty Russell
2002-02-25 17:06                 ` Linus Torvalds
2002-02-25 17:31                   ` Alan Cox
2002-02-25 17:20                     ` Linus Torvalds
2002-02-25 17:50                       ` Alan Cox
2002-02-25 17:44                         ` Linus Torvalds
2002-02-25 18:06                           ` Alan Cox
2002-02-25 19:31                             ` Linus Torvalds
2002-02-24  4:57                               ` Daniel Phillips
2002-02-25 19:51                             ` Hubertus Franke
2002-02-26 12:15                       ` [PATCH] 2.5.5 IDE clean 14 Martin Dalecki
2002-02-26 21:49                         ` Keith Owens
2002-02-27 10:08                           ` Martin Dalecki
2002-03-01  4:56           ` [PATCH] Lightweight userspace semaphores Eric W. Biederman
2002-03-02 14:54       ` Pavel Machek
2002-02-25 15:00 ` Hubertus Franke
2002-02-27  0:24   ` Rusty Russell
2002-02-27 15:53     ` Hubertus Franke
2002-03-01  0:24       ` Richard Henderson
2002-03-01  2:00         ` Hubertus Franke
2002-02-27 16:29     ` Hubertus Franke
2002-03-02 14:50     ` Hubertus Franke
2002-03-03 13:30       ` Rusty Russell
2002-03-04 16:51         ` Hubertus Franke
2002-03-05  4:41           ` Rusty Russell
2002-03-01  4:44   ` Eric W. Biederman
  -- strict thread matches above, loose matches on Subject: below --
2002-02-27  8:43 [PATCH] Lightweight userspace semphores Martin Wirth
2002-02-27 15:24 ` Hubertus Franke
2002-02-27 17:17   ` Martin Wirth
2002-02-27 19:04     ` Hubertus Franke
     [not found]       ` <3C7FDF76.9040903@dlr.de>
2002-03-02 14:08         ` [PATCH] Lightweight userspace semaphores Hubertus Franke
     [not found] <20020227163834.GF322@reload.nmd.msu.ru>
2002-02-27 16:58 ` Hubertus Franke
     [not found]   ` <20020227173307.GH322@reload.nmd.msu.ru>
2002-02-27 22:09     ` Hubertus Franke

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