linux-ext4 - Re: Patch to issue pure flushes directly (Was: Re: [PATCH v6 0/4] ext4: Coordinate data-only flush requests sent) by fsync

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Message-ID: <20110108074524.GA13024@lst.de>
Date:	Sat, 8 Jan 2011 08:45:24 +0100
From:	Christoph Hellwig <hch@....de>
To:	"Ted Ts'o" <tytso@....edu>, Christoph Hellwig <hch@....de>,
	"Darrick J. Wong" <djwong@...ibm.com>,
	Jens Axboe <axboe@...nel.dk>, Neil Brown <neilb@...e.de>,
	Andreas Dilger <adilger.kernel@...ger.ca>,
	Alasdair G Kergon <agk@...hat.com>, Jan Kara <jack@...e.cz>,
	Mike Snitzer <snitzer@...hat.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-raid@...r.kernel.org, Keith Mannthey <kmannth@...ibm.com>,
	dm-devel@...hat.com, Mingming Cao <cmm@...ibm.com>,
	Tejun Heo <tj@...nel.org>, linux-ext4@...r.kernel.org,
	Ric Wheeler <rwheeler@...hat.com>,
	Josef Bacik <josef@...hat.com>
Subject: Re: Patch to issue pure flushes directly (Was: Re: [PATCH v6 0/4] ext4: Coordinate data-only flush requests sent) by fsync

On Fri, Jan 07, 2011 at 06:54:49PM -0500, Ted Ts'o wrote:
> This patch seemed like a good idea to me; I just checked linux-next,
> and looks like nothing like this is planned to be merged.  Just
> thought I would send a prod-o-gram to see what the current thinking
> was around adding something like this.

I haven't really gotten any feedback on the patch, so it fell on the
floor for a while.  I've managed to get some big system resources to
test the impact of it, and once I've got numbers I'll resend it as
separate patches for scsi and the block layer.

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