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From: Ingo Molnar <mingo@elte.hu>
To: Jarek Poplawski <jarkao2@gmail.com>
Cc: Eric Dumazet <dada1@cosmosbay.com>,
	Stephen Hemminger <shemminger@vyatta.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Paul Mackerras <paulus@samba.org>,
	paulmck@linux.vnet.ibm.com, Evgeniy Polyakov <zbr@ioremap.net>,
	David Miller <davem@davemloft.net>,
	kaber@trash.net, jeff.chua.linux@gmail.com, laijs@cn.fujitsu.com,
	jengelh@medozas.de, r000n@r000n.net,
	linux-kernel@vger.kernel.org, netfilter-devel@vger.kernel.org,
	netdev@vger.kernel.org, benh@kernel.crashing.org,
	mathieu.desnoyers@polymtl.ca
Subject: Re: [PATCH] netfilter: use per-cpu recursive lock (v11)
Date: Wed, 22 Apr 2009 13:26:12 +0200	[thread overview]
Message-ID: <20090422112612.GA3799@elte.hu> (raw)
In-Reply-To: <20090422101318.GA6630@ff.dom.local>


* Jarek Poplawski <jarkao2@gmail.com> wrote:

> On 22-04-2009 10:53, Eric Dumazet wrote:
> ...
> > If this could be done without recursion, I am pretty sure 
> > netfilter and network guys would have done it. I found Linus 
> > reaction quite shocking IMHO, considering hard work done by all 
> > people on this.
> 
> Right, looks like 100% (Scandinavian?!) troll. I wonder where is 
> the admin of this mess...

You might disagree with me on an honest technical basis, but note 
that this kind of childish, knee-jerk reaction against dissenting 
people is what gives netdev its bad reputation.

	Ingo

  reply	other threads:[~2009-04-22 11:27 UTC|newest]

Thread overview: 216+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-10  9:15 iptables very slow after commit784544739a25c30637397ace5489eeb6e15d7d49 Jeff Chua
2009-04-10 16:52 ` Stephen Hemminger
2009-04-11  1:07   ` Jeff Chua
2009-04-11  1:25   ` David Miller
2009-04-11  1:39     ` iptables very slow after commit 784544739a25c30637397ace5489eeb6e15d7d49 Linus Torvalds
2009-04-11  4:15       ` Paul E. McKenney
2009-04-11  5:14         ` Jan Engelhardt
2009-04-11  5:42           ` Paul E. McKenney
2009-04-11  6:00           ` David Miller
2009-04-11 18:12             ` Kyle Moffett
2009-04-11 18:32               ` Arkadiusz Miskiewicz
2009-04-12  0:54               ` david
2009-04-12  5:05                 ` Kyle Moffett
2009-04-12 12:30                 ` Harald Welte
2009-04-12 16:38             ` Jan Engelhardt
2009-04-11 15:07           ` Stephen Hemminger
2009-04-11 16:05             ` Jeff Chua
2009-04-11 17:51           ` Linus Torvalds
2009-04-11  7:08         ` Ingo Molnar
2009-04-11 15:05           ` Stephen Hemminger
2009-04-11 17:48           ` Paul E. McKenney
2009-04-12 10:54             ` Ingo Molnar
2009-04-12 11:34             ` Paul Mackerras
2009-04-12 17:31               ` Paul E. McKenney
2009-04-13  1:13                 ` David Miller
2009-04-13  4:04                   ` Paul E. McKenney
2009-04-13 16:53                     ` [PATCH] netfilter: use per-cpu spinlock rather than RCU Stephen Hemminger
2009-04-13 17:40                       ` Eric Dumazet
2009-04-13 18:11                         ` Stephen Hemminger
2009-04-13 19:06                       ` Martin Josefsson
2009-04-13 19:17                         ` Linus Torvalds
2009-04-13 22:24                       ` Andrew Morton
2009-04-13 23:20                         ` Stephen Hemminger
2009-04-13 23:26                           ` Andrew Morton
2009-04-13 23:37                             ` Linus Torvalds
2009-04-13 23:52                               ` Ingo Molnar
2009-04-14 12:27                       ` Patrick McHardy
2009-04-14 14:23                         ` Eric Dumazet
2009-04-14 14:45                           ` Stephen Hemminger
2009-04-14 15:49                             ` Eric Dumazet
2009-04-14 16:51                               ` Jeff Chua
2009-04-14 18:17                                 ` [PATCH] netfilter: use per-cpu spinlock rather than RCU (v2) Stephen Hemminger
2009-04-14 19:28                                   ` Eric Dumazet
2009-04-14 21:11                                     ` Stephen Hemminger
2009-04-14 21:13                                     ` [PATCH] netfilter: use per-cpu spinlock rather than RCU (v3) Stephen Hemminger
2009-04-14 21:40                                       ` Eric Dumazet
2009-04-15 10:59                                         ` Patrick McHardy
2009-04-15 16:31                                           ` Stephen Hemminger
2009-04-15 20:55                                           ` Stephen Hemminger
2009-04-15 21:07                                             ` Eric Dumazet
2009-04-15 21:55                                               ` Jan Engelhardt
2009-04-16 12:12                                                 ` Patrick McHardy
2009-04-16 12:24                                                   ` Jan Engelhardt
2009-04-16 12:31                                                     ` Patrick McHardy
2009-04-15 21:57                                               ` [PATCH] netfilter: use per-cpu rwlock rather than RCU (v4) Stephen Hemminger
2009-04-15 23:48                                               ` [PATCH] netfilter: use per-cpu spinlock rather than RCU (v3) David Miller
2009-04-16  0:01                                                 ` Stephen Hemminger
2009-04-16  0:05                                                   ` David Miller
2009-04-16 12:28                                                     ` Patrick McHardy
2009-04-16  0:10                                                   ` Linus Torvalds
2009-04-16  0:45                                                     ` [PATCH] netfilter: use per-cpu spinlock and RCU (v5) Stephen Hemminger
2009-04-16  5:01                                                       ` Eric Dumazet
2009-04-16 13:53                                                         ` Patrick McHardy
2009-04-16 14:47                                                           ` Paul E. McKenney
2009-04-16 16:10                                                             ` [PATCH] netfilter: use per-cpu recursive spinlock (v6) Eric Dumazet
2009-04-16 16:20                                                               ` Eric Dumazet
2009-04-16 16:37                                                               ` Linus Torvalds
2009-04-16 16:59                                                                 ` Patrick McHardy
2009-04-16 17:58                                                               ` Paul E. McKenney
2009-04-16 18:41                                                                 ` Eric Dumazet
2009-04-16 20:49                                                                   ` [PATCH[] netfilter: use per-cpu reader-writer lock (v0.7) Stephen Hemminger
2009-04-16 21:02                                                                     ` Linus Torvalds
2009-04-16 23:04                                                                       ` Ingo Molnar
2009-04-17  0:13                                                                   ` [PATCH] netfilter: use per-cpu recursive spinlock (v6) Paul E. McKenney
2009-04-16 13:11                                                     ` [PATCH] netfilter: use per-cpu spinlock rather than RCU (v3) Patrick McHardy
2009-04-16 22:33                                                       ` David Miller
2009-04-16 23:49                                                         ` Paul E. McKenney
2009-04-16 23:52                                                           ` [PATCH] netfilter: per-cpu spin-lock with recursion (v0.8) Stephen Hemminger
2009-04-17  0:15                                                             ` Jeff Chua
2009-04-17  5:55                                                             ` Peter Zijlstra
2009-04-17  6:03                                                             ` Eric Dumazet
2009-04-17  6:14                                                               ` Eric Dumazet
2009-04-17 17:08                                                                 ` Peter Zijlstra
2009-04-17 11:17                                                               ` Patrick McHardy
2009-04-17  1:28                                                           ` [PATCH] netfilter: use per-cpu spinlock rather than RCU (v3) Paul E. McKenney
2009-04-17  2:19                                                             ` Mathieu Desnoyers
2009-04-17  5:05                                                               ` Paul E. McKenney
2009-04-17  5:44                                                                 ` Mathieu Desnoyers
2009-04-17 14:51                                                                   ` Paul E. McKenney
2009-04-17  4:50                                                             ` Stephen Hemminger
2009-04-17  5:08                                                               ` Paul E. McKenney
2009-04-17  5:16                                                               ` Eric Dumazet
2009-04-17  5:40                                                                 ` Paul E. McKenney
2009-04-17  8:07                                                                   ` David Miller
2009-04-17 15:00                                                                     ` Paul E. McKenney
2009-04-17 17:22                                                                     ` Peter Zijlstra
2009-04-17 17:32                                                                       ` Linus Torvalds
2009-04-17  6:12                                                             ` Peter Zijlstra
2009-04-17 16:33                                                               ` Paul E. McKenney
2009-04-17 16:51                                                                 ` Peter Zijlstra
2009-04-17 21:29                                                                   ` Paul E. McKenney
2009-04-18  9:40                                                             ` Evgeniy Polyakov
2009-04-18 14:14                                                               ` Paul E. McKenney
2009-04-20 17:34                                                                 ` [PATCH] netfilter: use per-cpu recursive lock (v10) Stephen Hemminger
2009-04-20 18:21                                                                   ` Paul E. McKenney
2009-04-20 18:25                                                                   ` Eric Dumazet
2009-04-20 20:32                                                                     ` Stephen Hemminger
2009-04-20 20:42                                                                     ` Stephen Hemminger
2009-04-20 21:05                                                                       ` Paul E. McKenney
2009-04-20 21:23                                                                     ` Paul Mackerras
2009-04-20 21:58                                                                       ` Paul E. McKenney
2009-04-20 22:41                                                                         ` Paul Mackerras
2009-04-20 23:01                                                                           ` [PATCH] netfilter: use per-cpu recursive lock (v11) Stephen Hemminger
2009-04-21  3:41                                                                             ` Lai Jiangshan
2009-04-21  3:56                                                                               ` Eric Dumazet
2009-04-21  4:15                                                                                 ` Stephen Hemminger
2009-04-21  5:22                                                                                 ` Lai Jiangshan
2009-04-21  5:45                                                                                   ` Stephen Hemminger
2009-04-21  6:52                                                                                     ` Lai Jiangshan
2009-04-21  8:16                                                                                       ` Evgeniy Polyakov
2009-04-21  8:42                                                                                         ` Lai Jiangshan
2009-04-21  8:49                                                                                           ` David Miller
2009-04-21  8:55                                                                                         ` Eric Dumazet
2009-04-21  9:22                                                                                           ` Evgeniy Polyakov
2009-04-21  9:34                                                                                           ` Lai Jiangshan
2009-04-21  5:34                                                                                 ` Lai Jiangshan
2009-04-21  4:59                                                                             ` Eric Dumazet
2009-04-21 16:37                                                                               ` Paul E. McKenney
2009-04-21  5:46                                                                             ` Lai Jiangshan
2009-04-21 16:13                                                                             ` Linus Torvalds
2009-04-21 16:43                                                                               ` Stephen Hemminger
2009-04-21 16:50                                                                                 ` Linus Torvalds
2009-04-21 18:02                                                                               ` Ingo Molnar
2009-04-21 18:15                                                                               ` Stephen Hemminger
2009-04-21 19:10                                                                                 ` Ingo Molnar
2009-04-21 19:46                                                                                   ` Eric Dumazet
2009-04-22  7:35                                                                                     ` Ingo Molnar
2009-04-22  8:53                                                                                       ` Eric Dumazet
2009-04-22 10:13                                                                                         ` Jarek Poplawski
2009-04-22 11:26                                                                                           ` Ingo Molnar [this message]
2009-04-22 11:39                                                                                             ` Jarek Poplawski
2009-04-22 11:18                                                                                         ` Ingo Molnar
2009-04-22 15:19                                                                                         ` Linus Torvalds
2009-04-22 16:57                                                                                           ` Eric Dumazet
2009-04-22 17:18                                                                                             ` Linus Torvalds
2009-04-22 20:46                                                                                               ` Jarek Poplawski
2009-04-22 17:48                                                                                         ` Ingo Molnar
2009-04-21 21:04                                                                                   ` Stephen Hemminger
2009-04-22  8:00                                                                                     ` Ingo Molnar
2009-04-21 19:39                                                                                 ` Ingo Molnar
2009-04-21 21:39                                                                                   ` [PATCH] netfilter: use per-cpu recursive lock (v13) Stephen Hemminger
2009-04-22  4:17                                                                                     ` Paul E. McKenney
2009-04-22 14:57                                                                                     ` Eric Dumazet
2009-04-22 15:32                                                                                     ` Linus Torvalds
2009-04-24  4:09                                                                                       ` [PATCH] netfilter: use per-CPU recursive lock {XIV} Stephen Hemminger
2009-04-24  4:58                                                                                         ` Eric Dumazet
2009-04-24 15:33                                                                                           ` Patrick McHardy
2009-04-24 16:18                                                                                           ` Stephen Hemminger
2009-04-24 20:43                                                                                             ` Jarek Poplawski
2009-04-25 20:30                                                                                               ` [PATCH] netfilter: iptables no lockdep is needed Stephen Hemminger
2009-04-26  8:18                                                                                                 ` Jarek Poplawski
2009-04-26 18:24                                                                                                 ` [PATCH] netfilter: use per-CPU recursive lock {XV} Eric Dumazet
2009-04-26 18:56                                                                                                   ` Mathieu Desnoyers
2009-04-26 21:57                                                                                                     ` Stephen Hemminger
2009-04-26 22:32                                                                                                       ` Mathieu Desnoyers
2009-04-27 17:44                                                                                                       ` Peter Zijlstra
2009-04-27 18:30                                                                                                         ` [PATCH] netfilter: use per-CPU r**ursive " Stephen Hemminger
2009-04-27 18:54                                                                                                           ` Ingo Molnar
2009-04-27 19:06                                                                                                             ` Stephen Hemminger
2009-04-27 19:46                                                                                                               ` Linus Torvalds
2009-04-27 19:48                                                                                                                 ` Linus Torvalds
2009-04-27 20:36                                                                                                                 ` Evgeniy Polyakov
2009-04-27 20:58                                                                                                                   ` Linus Torvalds
2009-04-27 21:40                                                                                                                     ` Stephen Hemminger
2009-04-27 22:24                                                                                                                       ` Linus Torvalds
2009-04-27 23:01                                                                                                                         ` Linus Torvalds
2009-04-27 23:03                                                                                                                           ` Linus Torvalds
2009-04-28  6:58                                                                                                                             ` Eric Dumazet
2009-04-28 11:53                                                                                                                               ` David Miller
2009-04-28 12:40                                                                                                                                 ` Ingo Molnar
2009-04-28 13:43                                                                                                                                   ` David Miller
2009-04-28 13:52                                                                                                                                     ` Mathieu Desnoyers
2009-04-28 14:37                                                                                                                                       ` David Miller
2009-04-28 14:49                                                                                                                                         ` Mathieu Desnoyers
2009-04-28 15:00                                                                                                                                           ` David Miller
2009-04-28 16:24                                                                                                                                             ` [PATCH] netfilter: revised locking for x_tables Stephen Hemminger
2009-04-28 16:50                                                                                                                                               ` Linus Torvalds
2009-04-28 16:55                                                                                                                                                 ` Linus Torvalds
2009-04-29  5:37                                                                                                                                                   ` David Miller
2009-04-30  3:26                                                                                                                                                     ` Jeff Chua
2009-04-30  3:31                                                                                                                                                       ` David Miller
2009-04-28 15:42                                                                                                                                     ` [PATCH] netfilter: use per-CPU r**ursive lock {XV} Paul E. McKenney
2009-04-28 17:35                                                                                                                                       ` Christoph Lameter
2009-04-28 15:09                                                                                                                               ` Linus Torvalds
2009-04-27 23:32                                                                                                                           ` Linus Torvalds
2009-04-28  7:41                                                                                                                             ` Peter Zijlstra
2009-04-28 14:22                                                                                                                               ` Paul E. McKenney
2009-04-28  7:42                                                                                                                 ` Jan Engelhardt
2009-04-26 19:31                                                                                                   ` [PATCH] netfilter: use per-CPU recursive " Mathieu Desnoyers
2009-04-26 20:55                                                                                                     ` Eric Dumazet
2009-04-26 21:39                                                                                                       ` Mathieu Desnoyers
2009-04-21 18:34                                                                               ` [PATCH] netfilter: use per-cpu recursive lock (v11) Paul E. McKenney
2009-04-21 20:14                                                                                 ` Linus Torvalds
2009-04-20 23:44                                                                           ` [PATCH] netfilter: use per-cpu recursive lock (v10) Paul E. McKenney
2009-04-16  0:02                                                 ` [PATCH] netfilter: use per-cpu spinlock rather than RCU (v3) Linus Torvalds
2009-04-16  6:26                                                 ` Eric Dumazet
2009-04-16 14:33                                                   ` Paul E. McKenney
2009-04-15  3:23                                       ` David Miller
2009-04-14 17:19                               ` [PATCH] netfilter: use per-cpu spinlock rather than RCU Stephen Hemminger
2009-04-11 15:50         ` iptables very slow after commit 784544739a25c30637397ace5489eeb6e15d7d49 Stephen Hemminger
2009-04-11 17:43           ` Paul E. McKenney
2009-04-11 18:57         ` Linus Torvalds
2009-04-12  0:34           ` Paul E. McKenney
2009-04-12  7:23             ` Evgeniy Polyakov
2009-04-12 16:06             ` Stephen Hemminger
2009-04-12 17:30               ` Paul E. McKenney

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