From: William Lee Irwin III <wli@holomorphy.com>
To: Arjan van de Ven <arjanv@redhat.com>
Cc: "Martin J. Bligh" <mbligh@aracnet.com>,
ptb@it.uc3m.es, linux-kernel@vger.kernel.org
Subject: Re: recursive spinlocks. Shoot.
Date: Sun, 18 May 2003 09:54:45 -0700 [thread overview]
Message-ID: <20030518165445.GA8978@holomorphy.com> (raw)
In-Reply-To: <1053276543.1300.10.camel@laptop.fenrus.com>
At some point in the past, Peter Breuer's attribution was removed from:
>>>> Here's a before-breakfast implementation of a recursive spinlock. That
>>>> is, the same thread can "take" the spinlock repeatedly.
On Sun, May 18, 2003 at 09:30:17AM -0700, Martin J. Bligh wrote:
>>> Why?
On Sun, 2003-05-18 at 18:35, William Lee Irwin III wrote:
>> netconsole.
On Sun, May 18, 2003 at 06:49:04PM +0200, Arjan van de Ven wrote:
> not really.
> the netconsole issue is tricky and recursive, but recursive locks aren't
> the solution; that would require a rewrite of the network drivers. It's
> far easier to solve it by moving the debug printk's instead.
Yes, there are better ways to fix it. But AIUI this is why some people
want it (the rest of us just don't want messy locking semantics around).
-- wli
next prev parent reply other threads:[~2003-05-18 16:42 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-18 9:21 recursive spinlocks. Shoot Peter T. Breuer
2003-05-18 16:30 ` Martin J. Bligh
2003-05-18 16:35 ` William Lee Irwin III
2003-05-18 16:49 ` Arjan van de Ven
2003-05-18 16:54 ` William Lee Irwin III [this message]
2003-05-18 17:14 ` Martin J. Bligh
2003-05-18 17:24 ` Peter T. Breuer
2003-05-18 22:34 ` David Woodhouse
2003-05-19 13:37 ` Peter T. Breuer
2003-05-19 13:45 ` Jens Axboe
2003-05-19 13:47 ` Arjan van de Ven
[not found] ` <mailman.1053352200.24653.linux-kernel2news@redhat.com>
2003-05-19 23:54 ` Pete Zaitcev
2003-05-20 0:03 ` viro
2003-05-20 0:03 ` Johannes Erdfelt
2003-05-20 3:12 ` Robert White
2003-05-20 11:59 ` Helge Hafting
2003-05-20 12:23 ` Richard B. Johnson
2003-05-20 21:05 ` Robert White
2003-05-20 21:42 ` Richard B. Johnson
2003-05-20 23:06 ` Robert White
2003-05-21 14:01 ` Richard B. Johnson
2003-05-21 21:56 ` Robert White
2003-05-22 0:13 ` viro
2003-05-22 0:32 ` Robert White
2003-05-22 0:46 ` Carl-Daniel Hailfinger
2003-05-21 5:48 ` Nikita Danilov
2003-05-22 1:00 ` Rik van Riel
2003-05-22 3:11 ` Robert White
2003-05-22 4:04 ` Nick Piggin
2003-05-22 4:42 ` Peter T. Breuer
2003-05-22 5:09 ` Nick Piggin
2003-05-23 0:19 ` Robert White
2003-05-23 7:22 ` Nikita Danilov
2003-05-23 9:07 ` Helge Hafting
2003-05-23 12:18 ` William Lee Irwin III
2003-05-24 2:39 ` Robert White
2003-05-28 16:50 ` Timothy Miller
2003-05-19 2:05 ` Kevin O'Connor
2003-05-19 6:19 ` Jan Hudec
2003-05-19 10:29 ` Helge Hafting
2003-05-19 11:37 ` Nikita Danilov
2003-05-22 1:21 ` Daniel Phillips
2003-05-19 14:28 ` Martin J. Bligh
2003-05-18 18:13 ` Davide Libenzi
[not found] <20030518182010$0541@gated-at.bofh.it>
2003-05-18 19:09 ` Peter T. Breuer
2003-05-18 19:31 ` Davide Libenzi
2003-05-18 19:49 ` Peter T. Breuer
2003-05-18 20:13 ` Davide Libenzi
2003-05-19 20:47 ` Jan Hudec
[not found] <20030518202013$5297@gated-at.bofh.it>
2003-05-18 23:15 ` Peter T. Breuer
2003-05-18 23:26 ` Davide Libenzi
2003-05-19 12:48 ` Peter T. Breuer
2003-05-19 17:15 ` Davide Libenzi
2003-05-19 17:27 ` Peter T. Breuer
2003-05-19 17:57 ` Alan Cox
2003-05-19 19:51 ` Peter T. Breuer
2003-05-19 20:22 ` Robert White
[not found] <20030520231013$3d77@gated-at.bofh.it>
2003-05-21 14:16 ` Peter T. Breuer
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