linux-ext4 - Re: [KNOWN BUGGY RFC PATCH 4/3] block: skip elevator initialization for flush requests

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Message-ID: <20110126100537.GD12520@htj.dyndns.org>
Date:	Wed, 26 Jan 2011 11:05:37 +0100
From:	Tejun Heo <tj@...nel.org>
To:	Mike Snitzer <snitzer@...hat.com>
Cc:	axboe@...nel.dk, tytso@....edu, djwong@...ibm.com, shli@...nel.org,
	neilb@...e.de, adilger.kernel@...ger.ca, jack@...e.cz,
	linux-kernel@...r.kernel.org, kmannth@...ibm.com, cmm@...ibm.com,
	linux-ext4@...r.kernel.org, rwheeler@...hat.com, hch@....de,
	josef@...hat.com, jmoyer@...hat.com
Subject: Re: [KNOWN BUGGY RFC PATCH 4/3] block: skip elevator
 initialization for flush requests

On Wed, Jan 26, 2011 at 11:03:22AM +0100, Tejun Heo wrote:
> Also, it would be great to better describe the lifetime difference
> between the first and the second unions and why it has be organized
> this way (rb_node and completion_data can live together but rb_node
> and flush can't).

Oops, what can't live together are elevator_private* and
completion_data.

Thanks.

-- 
tejun
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