From: Artem Bityutskiy <dedekind1@gmail.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@kernel.dk>, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH, RFC] simplify writeback thread creation
Date: Fri, 09 Jul 2010 10:52:59 +0300 [thread overview]
Message-ID: <1278661979.9953.8.camel@localhost> (raw)
In-Reply-To: <20100708184811.GA17593@lst.de>
On Thu, 2010-07-08 at 20:48 +0200, Christoph Hellwig wrote:
> On Thu, Jul 08, 2010 at 09:43:22PM +0300, Artem Bityutskiy wrote:
> > Hmm, was thinking about this while driving home - the forker approach
> > has a good resilience property - if it cannot fork - it'll do the stuff
> > itself. I have a feeling that if something like this to be implemented
> > with the approach I suggested, we'll end up with similar level of
> > complexity that we wanted to get rid of...
>
> Yes, the lazy starting is what adds the complexity. I think starting
> it once we have any filesystem mounted on the bdi and stop it once all
> filesystems are gone is a lot simpler and more elegant.
But what about cases like 'dd if=/dev/zero of=/dev/sda4'? They also
involve dirty data write-back.
--
Best Regards,
Artem Bityutskiy (Артём Битюцкий)
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next prev parent reply other threads:[~2010-07-09 7:57 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-07 22:52 [PATCH, RFC] simplify writeback thread creation Christoph Hellwig
2010-07-08 7:08 ` Artem Bityutskiy
2010-07-08 12:20 ` Jens Axboe
2010-07-08 14:21 ` Artem Bityutskiy
2010-07-08 14:59 ` Jens Axboe
2010-07-08 15:23 ` Artem Bityutskiy
2010-07-08 17:23 ` Jens Axboe
2010-07-08 18:43 ` Artem Bityutskiy
2010-07-08 18:48 ` Christoph Hellwig
2010-07-09 7:52 ` Artem Bityutskiy [this message]
2010-07-09 8:16 ` Jens Axboe
2010-07-09 11:06 ` Theodore Tso
2010-07-09 14:51 ` Christoph Hellwig
2010-07-09 15:49 ` Artem Bityutskiy
2010-07-08 13:22 ` Artem Bityutskiy
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