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From: Kai Germaschewski <kai-germaschewski@uiowa.edu>
To: Ingo Molnar <mingo@elte.hu>
Cc: Linus Torvalds <torvalds@transmeta.com>, <linux-kernel@vger.kernel.org>
Subject: Re: [patch] Workqueue Abstraction, 2.5.40-H7
Date: Tue, 1 Oct 2002 12:55:25 -0500 (CDT)	[thread overview]
Message-ID: <Pine.LNX.4.44.0210011251050.10307-100000@chaos.physics.uiowa.edu> (raw)
In-Reply-To: <Pine.LNX.4.44.0210011653370.28821-102000@localhost.localdomain>

On Tue, 1 Oct 2002, Ingo Molnar wrote:

> 2) driver fixes.
> 
> i have converted almost every affected driver to the new framework. This
> cleaned up tons of code. I also fixed a number of drivers that were still
> using BHs (these drivers did not compile in 2.5.40).

I'm possibly messing things up here, but doesn't it generally make more 
sense to convert tq_immediate users to tasklets instead of work queues?

tq_immediate users do not need process context, and one use I'm familiar 
with is basically doing bottom half interrupt processing, e.g. in lots of 
places in the ISDN code. Introducing a context switch for no obvious gain 
there seems rather pointless to me?

The same may be true for the tq_timer users as well?

--Kai



  reply	other threads:[~2002-10-01 17:50 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-10-01 16:24 [patch] Workqueue Abstraction, 2.5.40-H7 Ingo Molnar
2002-10-01 17:55 ` Kai Germaschewski [this message]
2002-10-01 21:27   ` Ingo Molnar
2002-10-01 18:04 ` Jeff Garzik
2002-10-01 18:52   ` Ingo Molnar
2002-10-01 21:06     ` Jeff Garzik
2002-10-01 21:30       ` Ingo Molnar
2002-10-01 19:16 ` Linus Torvalds
2002-10-01 19:53   ` Linus Torvalds
2002-10-01 21:32 ` Kristian Hogsberg
2002-10-03 18:44   ` Ingo Molnar
2002-10-04 23:20     ` Kristian Hogsberg
2002-10-02  4:22 ` Christoph Hellwig
2002-10-01 21:31   ` Ingo Molnar
2002-10-02  8:22 ` Oleg Drokin
2002-10-08  3:50   ` Jeff Dike
2002-10-01 18:52 Marc-Christian Petersen
2002-10-02  3:58 ` Christoph Hellwig
2002-10-01 20:29 Ingo Molnar
2002-10-01 20:49 ` Linus Torvalds
2002-10-01 21:21   ` Ingo Molnar
2002-10-02  3:23     ` Miles Bader
2002-10-02 19:18     ` Randy.Dunlap
2002-10-01 21:09 ` Jes Sorensen
2002-10-01 21:35   ` Ingo Molnar
2002-10-03  1:38 ` Kevin O'Connor

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