From: Paul Jackson <pj@sgi.com>
To: Stelian Pop <stelian@popies.net>
Cc: andrea@novell.com, hugh@veritas.com, akpm@osdl.org,
linux-kernel@vger.kernel.org
Subject: Re: [RFC, 2.6] a simple FIFO implementation
Date: Fri, 17 Sep 2004 07:47:07 -0700 [thread overview]
Message-ID: <20040917074707.613fbd57.pj@sgi.com> (raw)
In-Reply-To: <20040917133656.GF3089@crusoe.alcove-fr>
This discussion reminds me of a fifo I did long ago, when
I had both 80386 and 68020 chips sharing the same fifo.
The key was putting both the put and get (in and out)
indices into one word, and updating them using compare
and swap (cmpxchg, I guess it's called now).
No additional locking needed.
--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@sgi.com> 1.650.933.1373
next prev parent reply other threads:[~2004-09-17 15:28 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-13 13:52 [RFC, 2.6] a simple FIFO implementation Stelian Pop
2004-09-15 10:20 ` Stelian Pop
2004-09-15 11:10 ` Tonnerre
2004-09-15 11:25 ` Alan Cox
2004-09-15 13:27 ` Dmitry Torokhov
2004-09-15 14:21 ` Stelian Pop
2004-09-15 22:30 ` Andrew Morton
2004-09-16 6:43 ` Stelian Pop
2004-09-16 7:04 ` Andrew Morton
2004-09-16 10:45 ` Stelian Pop
2004-09-16 13:57 ` Paul Jackson
2004-09-16 14:09 ` Stelian Pop
2004-09-16 15:45 ` Paul Jackson
2004-09-16 15:59 ` Stelian Pop
2004-09-16 15:09 ` Buddy Lucas
2004-09-16 15:29 ` Stelian Pop
2004-09-16 15:51 ` Buddy Lucas
2004-09-16 15:52 ` Stelian Pop
2004-09-16 16:07 ` Buddy Lucas
2004-09-16 18:30 ` Stelian Pop
2004-09-16 22:52 ` Buddy Lucas
2004-09-16 17:00 ` Andrew Morton
2004-09-16 18:09 ` Stelian Pop
2004-09-17 0:18 ` Andrew Morton
2004-09-17 10:24 ` Stelian Pop
2004-09-17 11:28 ` Paul Jackson
2004-09-17 11:44 ` Hugh Dickins
2004-09-17 12:24 ` Stelian Pop
2004-09-17 12:37 ` Duncan Sands
2004-09-17 12:48 ` Stelian Pop
2004-09-17 13:00 ` Duncan Sands
2004-09-17 13:05 ` Stelian Pop
2004-09-17 13:16 ` Duncan Sands
2004-09-17 13:15 ` Andrea Arcangeli
2004-09-17 13:36 ` Stelian Pop
2004-09-17 13:41 ` Andrea Arcangeli
2004-09-17 14:00 ` Stelian Pop
2004-09-17 15:14 ` Andrea Arcangeli
2004-09-17 14:47 ` Paul Jackson [this message]
2004-09-17 12:52 ` James R Bruce
2004-09-17 15:48 ` Stelian Pop
2004-09-17 16:01 ` Andrea Arcangeli
2004-09-17 16:14 ` Hugh Dickins
2004-09-17 20:50 ` Stelian Pop
2004-09-17 21:28 ` Andrea Arcangeli
2004-09-17 21:54 ` Ryan Cumming
2004-09-17 22:00 ` Andrea Arcangeli
2004-09-17 22:14 ` Ryan Cumming
2004-09-17 22:35 ` Andrew Morton
2004-09-18 0:07 ` Ryan Cumming
2004-09-17 22:29 ` Ryan Cumming
2004-09-18 3:41 ` Kyle Moffett
2004-09-18 7:56 ` Ryan Cumming
2004-09-17 22:07 ` Andrew Morton
2004-09-20 15:14 ` Stelian Pop
2004-09-20 18:01 ` Sasha Khapyorsky
2004-09-20 18:22 ` Stelian Pop
2004-09-20 19:00 ` Richard B. Johnson
2004-09-16 15:57 ` Bill Davidsen
2004-09-17 10:25 ` Stelian Pop
[not found] <260353727@toto.iv>
2004-09-17 1:00 ` Peter Chubb
2004-09-17 5:45 ` Chris Friesen
2004-09-17 11:58 ` Anton Blanchard
2004-09-17 10:32 ` Stelian Pop
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