From: Andrea Arcangeli <andrea@suse.de>
To: john cooper <john.cooper@timesys.com>
Cc: Paulo Marques <pmarques@grupopie.com>,
Ingo Molnar <mingo@elte.hu>,
"Paul E. McKenney" <paulmck@us.ibm.com>,
Esben Nielsen <simlo@phys.au.dk>,
James Bruce <bruce@andrew.cmu.edu>,
Nick Piggin <nickpiggin@yahoo.com.au>,
"Bill Huey (hui)" <bhuey@lnxw.com>, Andi Kleen <ak@muc.de>,
Sven-Thorsten Dietrich <sdietrich@mvista.com>,
dwalker@mvista.com, hch@infradead.org, akpm@osdl.org,
linux-kernel@vger.kernel.org
Subject: Re: RT patch acceptance
Date: Wed, 1 Jun 2005 17:43:49 +0200 [thread overview]
Message-ID: <20050601154349.GP5413@g5.random> (raw)
In-Reply-To: <429DD553.3080509@timesys.com>
On Wed, Jun 01, 2005 at 11:33:39AM -0400, john cooper wrote:
> FWIW the decoupling of interrupt mask levels from
> spinlocks is a technique which predates the patent
> under discussion by a decade or so. And yes IANAL
> as well but it seems the patent would/should not
> have been awarded if it conflicted/overlapped with
> preexisting usage. I'd hazard this is a non-issue.
Ok, I'm glad we're allowed to redefine spin_lock_irq not to do a
hard-irq disable. I'm sorry for the annoyance, but I guess the end
result is even better now than it was before addressing this topic.
So to me the only obvious complain that remains is that every new driver
that calls local_irq_disable is a threat to the worst case latency, and
hence preempt-RT still deserve the "metal hard" definition, since
auditing all drivers calling local_irq_disable is hardly feasible.
next prev parent reply other threads:[~2005-06-01 15:47 UTC|newest]
Thread overview: 345+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-23 23:14 RT patch acceptance Daniel Walker
2005-05-24 2:01 ` john cooper
2005-05-24 5:47 ` Christoph Hellwig
2005-05-24 6:45 ` Ingo Molnar
2005-05-24 8:03 ` Nick Piggin
2005-05-24 8:15 ` Ingo Molnar
2005-05-24 8:27 ` Nick Piggin
2005-05-24 9:02 ` Ingo Molnar
2005-05-24 9:14 ` Nick Piggin
2005-05-24 10:13 ` Ingo Molnar
2005-05-24 18:05 ` Daniel Walker
2005-05-24 22:41 ` Bill Huey
2005-05-24 23:44 ` Daniel Walker
2005-05-25 0:10 ` Bill Huey
2005-05-25 0:32 ` K.R. Foley
2005-05-25 0:45 ` Lee Revell
2005-05-25 1:32 ` K.R. Foley
2005-05-25 0:45 ` Daniel Walker
2005-05-25 0:59 ` Bill Huey
2005-05-25 1:02 ` Daniel Walker
2005-05-25 1:43 ` Andrew Morton
2005-05-25 2:02 ` Sven Dietrich
2005-05-25 2:20 ` Andrew Morton
2005-05-25 2:26 ` Lee Revell
2005-05-25 3:24 ` Nick Piggin
2005-05-25 3:36 ` Sven Dietrich
2005-05-25 5:05 ` Nick Piggin
2005-05-25 6:09 ` RT patch acceptance (scheduler) Bill Huey
2005-05-25 7:00 ` Nick Piggin
2005-05-25 9:27 ` Bill Huey
2005-05-25 14:50 ` Nick Piggin
2005-05-25 15:12 ` RT patch acceptance (scheduler) --- QUESTION Brian O'Mahoney
2005-05-25 15:36 ` Steven Rostedt
2005-05-25 6:05 ` RT patch acceptance Ingo Molnar
2005-05-25 18:50 ` Lee Revell
2005-05-25 3:26 ` Gene Heskett
2005-05-25 5:17 ` Nick Piggin
2005-05-25 13:20 ` Gene Heskett
2005-05-25 6:33 ` Ingo Molnar
2005-05-25 7:18 ` Nick Piggin
2005-05-25 7:46 ` Ingo Molnar
2005-05-25 10:51 ` Con Kolivas
2005-05-25 8:29 ` Giuseppe Bilotta
2005-05-25 13:23 ` Gene Heskett
2005-05-25 17:17 ` Andi Kleen
2005-05-25 17:52 ` Steven Rostedt
2005-05-25 18:00 ` Sven-Thorsten Dietrich
2005-05-26 19:32 ` Andi Kleen
2005-05-26 20:11 ` Sven-Thorsten Dietrich
2005-05-26 20:27 ` Andi Kleen
2005-05-26 20:46 ` Sven-Thorsten Dietrich
2005-05-26 23:57 ` john cooper
2005-05-26 21:28 ` Bill Huey
2005-05-26 23:44 ` john cooper
2005-05-27 5:19 ` Nick Piggin
2005-05-27 5:24 ` Nick Piggin
2005-05-27 7:18 ` Ingo Molnar
2005-05-27 8:07 ` Nick Piggin
2005-05-27 15:56 ` K.R. Foley
2005-05-28 3:59 ` Lee Revell
2005-05-27 7:20 ` Sven-Thorsten Dietrich
2005-05-27 8:17 ` Nick Piggin
2005-05-27 10:17 ` Thomas Gleixner
2005-05-27 17:46 ` Karim Yaghmour
2005-05-27 12:08 ` Bill Huey
2005-05-27 12:10 ` Ingo Molnar
2005-05-27 20:36 ` Bill Huey
2005-05-27 12:43 ` Nick Piggin
2005-05-27 23:36 ` Bill Huey
2005-05-28 3:53 ` Nick Piggin
2005-05-28 4:27 ` Lee Revell
2005-05-28 4:43 ` Nick Piggin
2005-05-28 5:53 ` Bill Huey
2005-05-28 5:45 ` Bill Huey
2005-05-28 6:49 ` Nick Piggin
2005-05-29 11:37 ` James Bruce
2005-05-29 12:23 ` Brian O'Mahoney
2005-05-30 9:37 ` Nick Piggin
2005-05-30 13:43 ` James Bruce
2005-05-30 14:21 ` Nick Piggin
2005-05-30 22:27 ` Bill Huey
2005-05-30 22:54 ` Karim Yaghmour
2005-05-30 23:05 ` Bill Huey
2005-05-30 23:29 ` Karim Yaghmour
2005-05-31 1:21 ` Nick Piggin
2005-05-31 2:09 ` Bill Huey
2005-05-31 9:12 ` James Bruce
2005-05-31 9:33 ` Nick Piggin
2005-05-31 10:23 ` Bill Huey
2005-05-31 10:48 ` James Bruce
2005-05-31 11:06 ` Nick Piggin
2005-05-31 11:14 ` Andi Kleen
2005-05-31 11:31 ` Hari N
2005-05-31 16:59 ` James Bruce
2005-05-31 12:09 ` Esben Nielsen
2005-05-31 16:18 ` Steven Rostedt
2005-05-31 16:42 ` Esben Nielsen
2005-05-31 17:11 ` Andrea Arcangeli
2005-05-31 17:42 ` Steven Rostedt
2005-05-31 17:51 ` Andrea Arcangeli
2005-05-31 18:29 ` Steven Rostedt
2005-05-31 20:54 ` Andrea Arcangeli
2005-05-31 21:22 ` Steven Rostedt
2005-05-31 21:47 ` Lee Revell
2005-05-31 22:24 ` Andrea Arcangeli
2005-05-31 23:41 ` Steven Rostedt
2005-06-01 0:50 ` Zan Lynx
2005-06-01 2:38 ` Zwane Mwaikambo
2005-05-31 22:15 ` Andrea Arcangeli
2005-05-31 22:33 ` NZG
2005-05-31 23:14 ` Bill Huey
2005-05-31 21:33 ` Bill Huey
2005-05-31 23:59 ` Steven Rostedt
2005-06-01 0:57 ` Brian O'Mahoney
2005-06-01 6:23 ` John Alvord
2005-06-01 11:41 ` Steven Rostedt
2005-06-01 0:26 ` Peter Chubb
2005-06-01 8:17 ` Esben Nielsen
2005-05-31 14:30 ` Andrea Arcangeli
2005-05-31 15:07 ` Esben Nielsen
2005-05-31 16:11 ` Andrea Arcangeli
2005-05-31 18:36 ` Paul E. McKenney
2005-05-31 20:45 ` Andrea Arcangeli
2005-06-01 1:14 ` Karim Yaghmour
2005-06-01 1:30 ` Steven Rostedt
2005-06-01 1:50 ` Karim Yaghmour
2005-06-01 2:42 ` Paul E. McKenney
2005-06-01 12:18 ` Paulo Marques
2005-06-01 13:51 ` Andrea Arcangeli
2005-06-01 14:19 ` Ingo Molnar
2005-06-01 14:32 ` Andrea Arcangeli
2005-06-01 14:39 ` Daniel Walker
2005-06-01 14:45 ` Ingo Molnar
2005-06-01 14:57 ` Andrea Arcangeli
2005-06-01 14:45 ` Esben Nielsen
2005-06-01 15:05 ` Andrea Arcangeli
2005-06-01 15:15 ` Esben Nielsen
2005-06-01 15:32 ` Andrea Arcangeli
2005-06-01 17:30 ` pi_test predicted results Daniel Walker
2005-06-01 17:58 ` Esben Nielsen
2005-06-01 15:33 ` RT patch acceptance Karim Yaghmour
2005-06-01 15:38 ` Andrea Arcangeli
2005-06-01 17:53 ` Thomas Gleixner
2005-06-01 19:22 ` Andrea Arcangeli
2005-06-01 19:34 ` Esben Nielsen
2005-06-01 19:59 ` Andrea Arcangeli
2005-06-01 20:17 ` Bill Huey
2005-06-01 20:32 ` Andrea Arcangeli
2005-06-01 20:46 ` Bill Huey
2005-06-01 21:07 ` Andrea Arcangeli
2005-06-01 21:29 ` Nicolas Pitre
2005-06-01 21:39 ` Andrea Arcangeli
2005-06-01 22:29 ` Nicolas Pitre
2005-06-01 23:44 ` Zwane Mwaikambo
2005-06-01 21:42 ` Bill Huey
2005-06-01 21:59 ` Bill Huey
2005-06-01 22:32 ` Andrea Arcangeli
2005-06-01 23:02 ` Bill Huey
2005-06-01 23:19 ` Bill Huey
2005-06-02 8:50 ` Esben Nielsen
2005-06-01 23:59 ` Bill Huey
2005-06-02 0:03 ` Bill Huey
2005-06-01 19:39 ` Ingo Molnar
2005-06-01 20:44 ` Andrea Arcangeli
2005-06-01 20:56 ` Thomas Gleixner
2005-06-01 21:09 ` Andrea Arcangeli
2005-06-01 14:46 ` Andrea Arcangeli
2005-06-01 14:56 ` Chris Friesen
2005-06-01 14:58 ` Paulo Marques
2005-06-01 15:17 ` Andrea Arcangeli
2005-06-01 15:33 ` john cooper
2005-06-01 15:43 ` Andrea Arcangeli [this message]
2005-06-01 15:19 ` Karim Yaghmour
2005-06-01 14:59 ` Esben Nielsen
2005-06-01 15:47 ` NZG
2005-06-01 15:58 ` Andrea Arcangeli
2005-06-01 17:20 ` Bill Davidsen
2005-06-01 18:19 ` Esben Nielsen
2005-06-01 15:09 ` Karim Yaghmour
2005-05-31 9:14 ` Esben Nielsen
2005-05-30 23:32 ` James Bruce
2005-05-31 1:22 ` Nick Piggin
2005-05-31 2:06 ` Lee Revell
2005-05-31 2:26 ` Lee Revell
2005-05-31 7:34 ` James Bruce
2005-05-31 19:10 ` Elladan
2005-05-30 22:10 ` Bill Huey
2005-05-30 17:53 ` Karim Yaghmour
2005-05-30 19:24 ` Esben Nielsen
2005-05-30 19:44 ` Karim Yaghmour
2005-05-30 21:44 ` Rich Walker
2005-05-30 22:45 ` Bill Huey
2005-05-30 23:03 ` Karim Yaghmour
2005-05-30 23:12 ` Bill Huey
2005-05-30 23:31 ` Karim Yaghmour
2005-05-31 0:00 ` Karim Yaghmour
2005-05-30 11:25 ` Nick Piggin
2005-05-29 1:55 ` Zwane Mwaikambo
2005-05-29 2:48 ` Lee Revell
2005-05-29 2:58 ` Zwane Mwaikambo
2005-05-29 4:08 ` Valdis.Kletnieks
2005-05-29 15:00 ` Zwane Mwaikambo
2005-05-29 17:50 ` Valdis.Kletnieks
2005-05-29 19:52 ` Zwane Mwaikambo
2005-05-29 21:16 ` Valdis.Kletnieks
2005-05-30 13:01 ` Bill Huey
2005-05-31 14:30 ` Zwane Mwaikambo
2005-05-28 6:55 ` Christoph Hellwig
2005-05-28 10:22 ` Bill Huey
2005-05-28 10:24 ` Christoph Hellwig
2005-05-28 10:36 ` Bill Huey
2005-05-28 10:34 ` Bill Huey
2005-05-28 10:50 ` Bill Huey
2005-05-28 10:48 ` Christoph Hellwig
2005-05-28 11:01 ` Bill Huey
2005-05-28 11:32 ` Bill Huey
2005-05-27 9:03 ` Thomas Gleixner
2005-05-27 9:14 ` Ingo Molnar
2005-05-27 9:22 ` Thomas Gleixner
2005-06-14 0:48 ` Daniel Walker
2005-06-14 3:29 ` Valdis.Kletnieks
2005-06-14 3:38 ` Daniel Walker
2005-05-26 20:38 ` john cooper
2005-05-26 21:00 ` Sven-Thorsten Dietrich
2005-05-26 21:23 ` john cooper
2005-05-26 20:52 ` Bill Huey
2005-05-26 21:09 ` Sven-Thorsten Dietrich
2005-05-26 21:14 ` Sven-Thorsten Dietrich
[not found] ` <20050526200424.GA27162@elte.hu>
[not found] ` <20050527123529.GD86087@muc.de>
2005-05-27 12:48 ` Ingo Molnar
2005-05-27 12:56 ` Andi Kleen
2005-05-27 13:13 ` Ingo Molnar
2005-05-27 13:31 ` Andi Kleen
2005-05-27 13:44 ` Ingo Molnar
2005-05-27 13:50 ` Ingo Molnar
2005-05-27 13:53 ` Ingo Molnar
2005-05-28 19:55 ` Andi Kleen
2005-05-28 20:57 ` Lee Revell
2005-05-27 13:56 ` Takashi Iwai
2005-05-27 14:27 ` Duncan Sands
2005-05-27 16:35 ` Andrea Arcangeli
2005-05-30 9:53 ` Andi Kleen
2005-05-30 10:33 ` Ingo Molnar
2005-05-30 10:56 ` Andi Kleen
2005-05-30 12:10 ` what is the -RT tree Ingo Molnar
2005-05-30 12:40 ` Andi Kleen
2005-05-30 13:30 ` Bill Huey
2005-05-31 16:18 ` Sven-Thorsten Dietrich
2005-05-30 11:15 ` RT patch acceptance Thomas Gleixner
2005-05-27 13:34 ` Ingo Molnar
2005-05-25 3:48 ` john cooper
2005-05-25 11:35 ` Esben Nielsen
2005-05-25 13:14 ` john cooper
2005-05-25 6:09 ` Ingo Molnar
2005-05-25 1:05 ` Bill Huey
2005-05-25 2:37 ` Karim Yaghmour
2005-05-25 2:36 ` Sven Dietrich
2005-05-25 2:56 ` Karim Yaghmour
2005-05-25 3:05 ` Chris Friesen
2005-05-25 19:24 ` Tim Bird
2005-05-25 2:38 ` Lee Revell
2005-05-25 2:58 ` Karim Yaghmour
2005-05-25 2:51 ` Sven Dietrich
2005-05-25 6:15 ` Bill Huey
2005-05-25 13:25 ` Karim Yaghmour
2005-05-25 8:16 ` Ingo Molnar
2005-05-25 13:27 ` Karim Yaghmour
2005-05-25 17:32 ` Sven-Thorsten Dietrich
2005-05-25 18:16 ` Chris Friesen
2005-05-27 2:29 ` Steven Rostedt
2005-05-25 16:01 ` Jonathan Corbet
2005-05-24 11:22 ` K.R. Foley
2005-05-24 15:21 ` Nick Piggin
2005-05-24 15:41 ` K.R. Foley
2005-05-24 17:31 ` Daniel Walker
2005-05-24 15:56 ` Ingo Molnar
2005-05-24 23:21 ` Bill Huey
2005-05-24 15:44 ` Daniel Walker
2005-05-24 15:47 ` Ingo Molnar
2005-05-24 16:27 ` john cooper
2005-05-24 18:01 ` Daniel Walker
2005-05-24 9:38 ` Esben Nielsen
2005-05-24 13:29 ` Karim Yaghmour
2005-05-24 13:58 ` Esben Nielsen
2005-05-24 14:42 ` Karim Yaghmour
2005-05-24 15:23 ` Ingo Molnar
2005-05-24 16:17 ` Karim Yaghmour
2005-05-24 21:23 ` Sven Dietrich
2005-05-24 22:31 ` Karim Yaghmour
2005-05-24 22:54 ` Sven Dietrich
2005-05-24 23:41 ` Lee Revell
[not found] ` <1116979434.2912.63.camel@mindpipe>
2005-05-25 0:48 ` Karim Yaghmour
2005-05-24 23:46 ` Lee Revell
2005-05-25 3:38 ` Gene Heskett
2005-05-24 23:49 ` Bill Huey
2005-05-25 14:26 ` Philippe Gerum
2005-05-24 14:47 ` Gene Heskett
2005-05-24 17:22 ` Philippe Gerum
2005-05-25 0:21 ` Lee Revell
2005-05-25 2:04 ` Sven Dietrich
2005-05-25 20:58 ` Tom Vier
2005-05-25 21:05 ` Esben Nielsen
2005-05-25 21:10 ` NZG
2005-05-25 21:25 ` Tom Vier
2005-05-25 21:43 ` Esben Nielsen
2005-05-25 21:45 ` Bill Huey
2005-05-25 21:43 ` Bill Huey
-- strict thread matches above, loose matches on Subject: below --
2005-05-25 6:55 kus Kusche Klaus
2005-05-25 7:06 ` Nick Piggin
2005-05-25 7:58 kus Kusche Klaus
2005-06-01 17:56 ` Paul G. Allen
2005-05-25 18:10 YhLu
2005-05-25 18:51 ` Andi Kleen
2005-05-30 8:25 kus Kusche Klaus
2005-05-30 9:49 ` Nick Piggin
2005-05-30 10:16 kus Kusche Klaus
2005-05-30 10:43 ` Nick Piggin
2005-05-30 11:34 ` Esben Nielsen
2005-05-30 11:58 ` Nick Piggin
2005-05-30 18:26 ` Steven Rostedt
2005-05-30 18:37 ` Esben Nielsen
2005-05-30 18:56 ` Karim Yaghmour
2005-05-30 18:58 ` Karim Yaghmour
2005-05-30 19:33 ` Esben Nielsen
2005-05-30 19:46 ` Karim Yaghmour
2005-05-30 20:00 ` Karim Yaghmour
2005-05-31 8:53 ` Esben Nielsen
2005-05-31 22:01 ` Bill Huey
2005-06-01 0:38 ` Karim Yaghmour
2005-05-30 22:34 ` Bill Huey
2005-05-30 22:49 ` Karim Yaghmour
2005-05-30 22:49 ` Bill Huey
2005-05-30 23:15 ` Karim Yaghmour
2005-05-31 0:07 ` Thomas Gleixner
2005-05-31 16:29 ` Steven Rostedt
2005-05-31 19:52 ` Lee Revell
2005-05-31 20:16 ` Steven Rostedt
2005-05-31 21:36 ` Bill Huey
2005-05-31 19:55 ` Lee Revell
2005-05-31 20:01 ` Andi Kleen
2005-05-31 20:10 ` Lee Revell
2005-05-31 20:14 ` David Lang
2005-06-01 2:06 ` Andrea Arcangeli
2005-06-01 2:13 ` David Lang
2005-05-30 16:33 ` Zwane Mwaikambo
2005-05-31 4:39 Saksena, Manas
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