From: Andreas Dilger Subject: Re: ext2/3/4 online defrag Date: Wed, 9 May 2007 22:24:09 -0700 Message-ID: <20070510052409.GB6375@schatzie.adilger.int> References: <1178770799.26695.11.camel@eric-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-ext4@vger.kernel.org To: Eric Return-path: Received: from mail.clusterfs.com ([206.168.112.78]:47609 "EHLO mail.clusterfs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755300AbXEJFYM (ORCPT ); Thu, 10 May 2007 01:24:12 -0400 Content-Disposition: inline In-Reply-To: <1178770799.26695.11.camel@eric-laptop> Sender: linux-ext4-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org On May 09, 2007 21:19 -0700, Eric wrote: > This is my first post to the list. I want to add online defrag support > to ext2/3/4 just to scratch an itch. > > I've searched the archives and googled around, and I've come to the > following conclusions: > *An offline defrag tool is available but dangerous. Yes, old and dangerous. > *Some patches exist that provide preliminary support for online defrag > in the ext3 driver, but interest in improving/integrating these patches > is low. I don't think that is true. Takashi Sato is actively working on online defrag, and patches are posted regularly to the linux-ext4 mailing list. I'd recommend that any work being done be spent in improving those patches instead of starting from scratch. Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc.