linux-kernel - Re: [PATCH 00/13] IO-less dirty throttling v2

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Message-ID: <4CECF30D.5050204@redhat.com>
Date:	Wed, 24 Nov 2010 13:12:13 +0200
From:	Avi Kivity <avi@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	Dave Chinner <david@...morbit.com>,
	Wu Fengguang <fengguang.wu@...el.com>, Jan Kara <jack@...e.cz>,
	Christoph Hellwig <hch@....de>,
	"Theodore Ts'o" <tytso@....edu>,
	Chris Mason <chris.mason@...cle.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Mel Gorman <mel@....ul.ie>, Rik van Riel <riel@...hat.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	linux-mm <linux-mm@...ck.org>, linux-fsdevel@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 00/13] IO-less dirty throttling v2

On 11/18/2010 04:09 AM, Andrew Morton wrote:
> But mainly because we're taking the work accounting away from the user
> who caused it and crediting it to the kernel thread instead, and that's
> an actively *bad* thing to do.
>

That's happening more and more with workqueues and kernel threads.

We need the ability for a kernel thread (perhaps a workqueue thread) to 
say "I am doing this on behalf of thread X, please charge any costs I 
incur (faults, cpu time, whatever) to that thread".

-- 
error compiling committee.c: too many arguments to function

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