From: Joakim Ziegler <joakim@terminalmx.com>
To: Theodore Ts'o <tytso@mit.edu>
Cc: linux-ext4@vger.kernel.org, Akira Fujita <a-fujita@rs.jp.nec.com>
Subject: Re: What happened to e4defrag relevant file and free space defrag?
Date: Wed, 03 Sep 2014 14:26:07 -0500 [thread overview]
Message-ID: <54076B4F.4020003@terminalmx.com> (raw)
In-Reply-To: <20140903190207.GJ2504@thunk.org>
On 03/09/14, 14:02, Theodore Ts'o wrote:
> On Wed, Sep 03, 2014 at 01:40:42PM -0500, Joakim Ziegler wrote:
>> On 23/08/14, 6:04, Joakim Ziegler wrote:
>>>
>>> Also, about free space defrag, it says:
>>>
>>> "Implement free space defragmentation (e4defrag -f). We might implement this
>>> feature when the relevant defrag development is completed."
>
> The e4defrag is in e2fsprogs, and the code is still getting maintained
> and improved. Dmitry Monakhov has in particular added a lot of
> "torture tests", and found a number of race conditions in the
> underlying kernel code. He recently also sent a code refactor of the
> kernel code which significantly improved it and (shrank the size of
> ext4 by 550 lines of code).
>
> That being said, there hasn't been any real feature development for
> e4defrag in quite some time. There has been some discussion about
> what the kernel API's might be to support this feature, but there has
> never been a finalized API proposal, let alone an implementation.
Yeah, I was mostly curious about the relevant file defrag, since Akira's
presentation from a few years back said that there were patches in review, and
it would, I think, largely solve my problem.
--
Joakim Ziegler - Supervisor de postproducción - Terminal
joakim@terminalmx.com - 044 55 2971 8514 - 5264 0864
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prev parent reply other threads:[~2014-09-03 19:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-23 11:04 What happened to e4defrag relevant file and free space defrag? Joakim Ziegler
2014-09-03 18:40 ` Joakim Ziegler
2014-09-03 19:02 ` Theodore Ts'o
2014-09-03 19:26 ` Joakim Ziegler [this message]
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