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From: Richard Henderson <rth@twiddle.net>
To: Paul McKenney <Paul.McKenney@us.ibm.com>
Cc: linux-kernel@vger.kernel.org, lse-tech@lists.sourceforge.net
Subject: Re: RFC: patch to allow lock-free traversal of lists with insertion
Date: Tue, 9 Oct 2001 10:00:23 -0700	[thread overview]
Message-ID: <20011009100023.A27427@twiddle.net> (raw)
In-Reply-To: <OF296D0EDC.4D1AE07A-ON88256AE0.00568638@boulder.ibm.com>
In-Reply-To: <OF296D0EDC.4D1AE07A-ON88256AE0.00568638@boulder.ibm.com>; from Paul.McKenney@us.ibm.com on Tue, Oct 09, 2001 at 08:45:15AM -0700

On Tue, Oct 09, 2001 at 08:45:15AM -0700, Paul McKenney wrote:
> Please see the example above.  I do believe that my algorithms are
> reliably forcing proper read ordering using IPIs, just in an different
> way.

I wasn't suggesting that the IPI wouldn't work -- it will.
But it will be _extremely_ slow.

I am suggesting that the lock-free algorithms should add the
read barriers, and that failure to do so indicates that they
are incomplete.  If nothing else, it documents where the real
dependancies are.


r~

  reply	other threads:[~2001-10-09 17:00 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-10-09 15:45 RFC: patch to allow lock-free traversal of lists with insertion Paul McKenney
2001-10-09 17:00 ` Richard Henderson [this message]
2001-10-10  3:33   ` Paul Mackerras
2001-10-10 17:02     ` Richard Henderson
2001-10-10  2:05 ` [Lse-tech] " Andrea Arcangeli
2001-10-10  5:05   ` Linus Torvalds
2001-10-10  5:17     ` BALBIR SINGH
2001-10-10  5:29       ` Davide Libenzi
2001-10-10  5:46       ` Linus Torvalds
2001-10-10  6:01         ` BALBIR SINGH
2001-10-10 15:23           ` Victor Yodaiken
2001-10-10  7:14         ` kdb requires kallsyms Kirill Ratkin
2001-10-10  7:38           ` BALBIR SINGH
2001-10-10  6:16     ` [Lse-tech] Re: RFC: patch to allow lock-free traversal of lists with insertion Paul Mackerras
2001-10-10  6:30       ` Linus Torvalds
2001-10-10  7:36     ` Paul Mackerras
2001-10-10 15:54       ` Victor Yodaiken
2001-10-10 21:56         ` Keith Owens
2001-10-10 22:24           ` Victor Yodaiken
2001-10-10 23:46             ` David S. Miller
2001-10-11  0:24               ` Davide Libenzi
2001-10-10 11:54     ` Keith Owens
2001-10-10 13:42       ` AIC7XXX war
2001-10-10 21:40         ` AIC7XXX Luigi Genoni
2001-10-10 13:24   ` [Lse-tech] Re: RFC: patch to allow lock-free traversal of lists with insertion Ivan Kokshaysky
2001-10-10 13:41     ` Andrea Arcangeli
  -- strict thread matches above, loose matches on Subject: below --
2001-10-11  1:56 Paul E. McKenney
2001-10-12  4:14 ` Rusty Russell
2001-10-13 14:48   ` Paul E. McKenney
2001-10-10 21:47 Paul McKenney
2001-10-10 22:22 ` Richard Henderson
2001-10-10 22:27 ` Richard Henderson
2001-10-10  1:19 Paul McKenney
2001-10-10  1:43 ` Andrea Arcangeli
2001-10-09 18:01 Paul McKenney
2001-10-09 17:46 Paul McKenney
2001-10-09 16:51 Manfred Spraul
2001-10-09 15:28 Paul McKenney
2001-10-09 15:24 Paul McKenney
2001-10-09  5:27 Paul McKenney
2001-10-09  5:56 ` David S. Miller
2001-10-09  6:43   ` Richard Henderson
2001-10-09  1:55 Paul E. McKenney
2001-10-09  2:18 ` David S. Miller
2001-10-09  6:52 ` Richard Henderson
2001-10-09  9:03   ` Rusty Russell
2001-10-09 16:11     ` Richard Henderson
2001-10-10  1:39       ` Rusty Russell
2001-10-09  7:13 ` BALBIR SINGH
2001-10-09  7:46   ` Dipankar Sarma
2001-10-09  8:21     ` BALBIR SINGH
2001-10-09  8:48       ` Dipankar Sarma

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