linux-kernel - Re: [RFC] [PATCH] A clean aEvgeniy pproach to writeout throttling

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Message-ID: <20071211131514.GB25437@kernel.dk>
Date:	Tue, 11 Dec 2007 14:15:14 +0100
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Daniel Phillips <phillips@...nq.net>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [RFC] [PATCH] A clean aEvgeniy pproach to writeout throttling

On Mon, Dec 10 2007, Daniel Phillips wrote:
> Now about that block writeout deadlock... it doesn't just affect my 
> code, it basically breaks Linux as a storage platform, among other 
> things.

As written in other similar threads in the past in which you also
participated, I still of the opinion that this is a vm issue and should
be solved as such.

As to the patch in question "fixing" it in the block layer, it's a
fairly simple work around and I'm not totally against it. If you get rid
of the ->bi_throttle stuff and just do sanity checks on the count, then
we could look at getting some testing done.

-- 
Jens Axboe

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