linux-kernel - Re: Defrag support for inodes / dentries etc

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Date:	Fri, 2 Jan 2009 11:00:02 +1100
From:	Dave Chinner <david@...morbit.com>
To:	Christoph Lameter <cl@...ux-foundation.org>
Cc:	Pekka Enberg <penberg@...helsinki.fi>,
	Andrew Morton <akpm@...ux-foundation.org>,
	jens.axboe@...cle.com, kmannth@...ibm.com,
	linux-kernel@...r.kernel.org, sekharan@...ibm.com,
	Miklos Szeredi <miklos@...redi.hu>,
	linux-fsdevel@...r.kernel.org
Subject: Re: Defrag support for inodes / dentries etc

On Wed, Dec 31, 2008 at 05:04:04PM -0600, Christoph Lameter wrote:
> On Tue, 30 Dec 2008, Pekka Enberg wrote:
> 
> > > I'll need to revert to yesterday's linux-next I think.  Pekka, has
> > > that stuff been dropped?
> >
> > Yup, there hasn't been any activity after the last merge window so I'm
> > not expecting to be able to merge it for 2.6.29. As per linux-next
> > rules, I dropped the 2.6.30 material until the merge window closes.
> > The code is in topic/slub-defrag of slab.git, though.
> 
> Well the problem currently is that there is no driver for these features.
> There has been a request for this functionality for a long time but both
> the primary drivers for this (Dave Chinner and I) are no longer with the
> company for which we started the project. I'd be glad to continue this
> if there would be an interest by the filesystem developers.

Certainly. The problem hasn't gone away and anyone trying to run
a busy fileserver while know of the problem....

Cheers,

Dave.
-- 
Dave Chinner
david@...morbit.com
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