From: David Miller <davem@davemloft.net>
From: Daniel Phillips <phillips@google.com>
To: phillips@google.com
Cc: a.p.zijlstra@chello.nl, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [RFC][PATCH 2/9] deadlock prevention core
Date: Tue, 08 Aug 2006 18:41:44 -0700 (PDT) [thread overview]
Date: Tue, 08 Aug 2006 18:35:42 -0700 [thread overview]
Message-ID: <20060808.184144.71088399.davem@davemloft.net> (raw)
In-Reply-To: <44D93BEE.4000001@google.com>
> David Miller wrote:
> > I think the new atomic operation that will seemingly occur on every
> > device SKB free is unacceptable.
>
> Alternate suggestion?
Sorry, I have none. But you're unlikely to get your changes
considered seriously unless you can avoid any new overhead your patch
has which is of this level.
We're busy trying to make these data structures smaller, and eliminate
atomic operations, as much as possible. Therefore anything which adds
new datastructure elements and new atomic operations will be met with
fierce resistence unless it results an equal or greater shrink of
datastructures elsewhere or removes atomic operations elsewhere in
the critical path.
--
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next prev parent reply other threads:[~2006-08-09 1:41 UTC|newest]
Thread overview: 140+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-08 19:33 [RFC][PATCH 0/9] Network receive deadlock prevention for NBD Peter Zijlstra
2006-08-08 19:33 ` [RFC][PATCH 1/9] pfn_to_kaddr() for UML Peter Zijlstra
2006-08-08 19:33 ` [RFC][PATCH 2/9] deadlock prevention core Peter Zijlstra
2006-08-08 20:57 ` Stephen Hemminger
2006-08-08 21:05 ` Peter Zijlstra
2006-08-09 1:33 ` Daniel Phillips
2006-08-09 1:38 ` David Miller, Daniel Phillips
2006-08-08 21:17 ` Thomas Graf
2006-08-09 1:34 ` Daniel Phillips
2006-08-09 1:39 ` David Miller, Daniel Phillips
2006-08-09 5:47 ` Daniel Phillips
2006-08-09 13:19 ` Thomas Graf
2006-08-09 14:07 ` Peter Zijlstra
2006-08-09 16:18 ` Thomas Graf
2006-08-09 16:19 ` Peter Zijlstra
2006-08-10 0:01 ` David Miller, Peter Zijlstra
2006-08-09 23:58 ` David Miller, Peter Zijlstra
2006-08-10 6:25 ` Peter Zijlstra
2006-08-11 4:24 ` Stephen Hemminger
2006-08-13 21:22 ` Daniel Phillips
2006-08-13 23:49 ` David Miller, Daniel Phillips
2006-08-14 1:15 ` Daniel Phillips
2006-08-11 2:37 ` Rik van Riel
2006-08-13 22:05 ` Daniel Phillips
2006-08-13 23:55 ` David Miller, Daniel Phillips
2006-08-14 1:31 ` Daniel Phillips
2006-08-14 1:53 ` Andrew Morton
2006-08-14 4:40 ` Peter Zijlstra
2006-08-14 4:58 ` Andrew Morton
2006-08-14 5:03 ` Peter Zijlstra
2006-08-14 5:22 ` Andrew Morton
2006-08-14 6:45 ` Peter Zijlstra
2006-08-14 7:07 ` Andrew Morton
2006-08-14 8:15 ` Peter Zijlstra
2006-08-14 8:25 ` Evgeniy Polyakov
2006-08-14 8:35 ` Peter Zijlstra
2006-08-14 8:33 ` David Miller, Andrew Morton
2006-08-17 4:27 ` Daniel Phillips
2006-08-14 7:17 ` Neil Brown
2006-08-14 7:31 ` Evgeniy Polyakov
2006-08-17 3:58 ` Daniel Phillips
2006-08-17 5:57 ` Andrew Morton
2006-08-17 23:53 ` Daniel Phillips
2006-08-18 0:24 ` Rik van Riel
2006-08-18 0:35 ` Daniel Phillips
2006-08-18 1:14 ` Neil Brown
2006-08-18 6:05 ` Andrew Morton
2006-08-18 21:22 ` Daniel Phillips
2006-08-18 22:34 ` Andrew Morton
2006-08-18 23:44 ` Daniel Phillips
2006-08-19 2:44 ` Andrew Morton
2006-08-19 4:14 ` Network receive stall avoidance (was [PATCH 2/9] deadlock prevention core) Daniel Phillips
2006-08-19 7:28 ` Andrew Morton
2006-08-19 15:06 ` [RFC][PATCH 2/9] deadlock prevention core Rik van Riel
2006-08-20 1:33 ` Andre Tomt
2006-08-19 16:53 ` Ray Lee
2006-08-21 13:27 ` Philip R. Auld
2006-08-25 10:47 ` Pavel Machek
2006-08-21 13:38 ` Jens Axboe
2006-08-08 22:10 ` David Miller
2006-08-09 1:35 ` Daniel Phillips
2006-08-09 1:41 ` David Miller, Daniel Phillips [this message]
2006-08-09 5:44 ` Daniel Phillips
2006-08-09 7:00 ` Peter Zijlstra
[not found] ` <42414.81.207.0.53.1155080443.squirrel@81.207.0.53>
2006-08-09 0:25 ` Daniel Phillips
2006-08-09 12:02 ` Indan Zupancic
2006-08-09 12:54 ` Peter Zijlstra
2006-08-09 13:48 ` Indan Zupancic
2006-08-09 14:00 ` Peter Zijlstra
2006-08-09 18:34 ` Indan Zupancic
2006-08-09 19:45 ` Peter Zijlstra
2006-08-09 20:19 ` Peter Zijlstra
2006-08-10 1:21 ` Indan Zupancic
2006-08-09 16:05 ` -v2 " Peter Zijlstra
2006-08-08 19:33 ` [RFC][PATCH 3/9] e1000 driver conversion Peter Zijlstra
2006-08-08 20:50 ` Auke Kok
2006-08-08 20:59 ` Peter Zijlstra
2006-08-08 22:32 ` David Miller, Auke Kok
2006-08-08 22:42 ` Auke Kok
2006-08-08 19:34 ` [RFC][PATCH 4/9] e100 " Peter Zijlstra
2006-08-08 20:13 ` Auke Kok
2006-08-08 20:18 ` Peter Zijlstra
2006-08-08 19:34 ` [RFC][PATCH 5/9] r8169 " Peter Zijlstra
2006-08-08 19:34 ` [RFC][PATCH 6/9] tg3 " Peter Zijlstra
2006-08-08 19:34 ` [RFC][PATCH 7/9] UML eth " Peter Zijlstra
2006-08-08 19:34 ` [RFC][PATCH 8/9] 3c59x " Peter Zijlstra
2006-08-08 23:07 ` Jeff Garzik
2006-08-09 5:51 ` Daniel Phillips
2006-08-09 5:55 ` David Miller, Daniel Phillips
2006-08-09 6:30 ` Jeff Garzik
2006-08-09 7:03 ` Peter Zijlstra
2006-08-09 7:20 ` Jeff Garzik
2006-08-13 19:38 ` Daniel Phillips
2006-08-13 19:53 ` Jeff Garzik
2006-08-08 19:34 ` [RFC][PATCH 9/9] deadlock prevention for NBD Peter Zijlstra
2006-08-09 5:46 ` [RFC][PATCH 0/9] Network receive " Evgeniy Polyakov
2006-08-09 5:52 ` Daniel Phillips
2006-08-09 5:56 ` David Miller, Daniel Phillips
2006-08-09 5:53 ` David Miller, Evgeniy Polyakov
2006-08-09 5:55 ` Evgeniy Polyakov
2006-08-09 12:37 ` Peter Zijlstra
2006-08-09 13:07 ` Evgeniy Polyakov
2006-08-09 13:32 ` Peter Zijlstra
2006-08-09 19:29 ` Evgeniy Polyakov
2006-08-09 23:54 ` David Miller, Peter Zijlstra
2006-08-10 6:06 ` Peter Zijlstra
2006-08-13 20:16 ` Daniel Phillips
2006-08-14 5:13 ` Evgeniy Polyakov
2006-08-14 6:45 ` Peter Zijlstra
2006-08-14 6:54 ` Evgeniy Polyakov
2006-08-17 4:49 ` Daniel Phillips
2006-08-17 4:48 ` Daniel Phillips
2006-08-17 5:36 ` Evgeniy Polyakov
2006-08-17 18:01 ` Daniel Phillips
2006-08-17 18:42 ` Evgeniy Polyakov
2006-08-17 19:15 ` Peter Zijlstra
2006-08-17 19:48 ` Evgeniy Polyakov
2006-08-17 23:24 ` Daniel Phillips
2006-08-18 7:16 ` Evgeniy Polyakov
2006-08-12 3:42 ` Rik van Riel
2006-08-12 8:47 ` Evgeniy Polyakov
2006-08-12 9:19 ` Peter Zijlstra
2006-08-12 9:37 ` Evgeniy Polyakov
2006-08-12 10:18 ` Peter Zijlstra
2006-08-12 10:42 ` Evgeniy Polyakov
2006-08-12 10:51 ` Evgeniy Polyakov
2006-08-12 11:40 ` Peter Zijlstra
2006-08-12 11:53 ` Evgeniy Polyakov
2006-08-13 0:46 ` David Miller, Peter Zijlstra
2006-08-13 1:11 ` Rik van Riel
2006-08-12 14:40 ` Rik van Riel
2006-08-12 14:49 ` Evgeniy Polyakov
2006-08-12 14:56 ` Rik van Riel
2006-08-12 15:08 ` Evgeniy Polyakov
2006-08-12 15:22 ` Peter Zijlstra
2006-08-14 0:56 ` Daniel Phillips
2006-08-13 0:46 ` David Miller, Evgeniy Polyakov
2006-08-13 9:06 ` Evgeniy Polyakov
2006-08-13 9:52 ` Evgeniy Polyakov
2006-08-15 19:17 ` Pavel Machek
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