linux-ext4 - Re: [RFC][PATCH 0/3]ext4: online defrag (ver 2.0)

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Date:	Fri, 19 Jun 2009 12:13:59 -0400
From:	Theodore Tso <tytso@....edu>
To:	Greg Freemyer <greg.freemyer@...il.com>
Cc:	Andreas Philipp <andreas.philipp@...e.at>,
	linux-ext4@...r.kernel.org
Subject: Re: [RFC][PATCH 0/3]ext4: online defrag (ver 2.0)

On Fri, Jun 19, 2009 at 11:31:20AM -0400, Greg Freemyer wrote:
> 
> Ted also pushed them as part of the 2.6.31 merge window, so testers
> will be able to test with 2.6.30-git14 or newer without having to
> apply the patches separately..

You may need a slightly modified userspace utility from what Akira-san
posted, which you can get here:

http://repo.or.cz/w/ext4-patch-queue.git?a=blob_plain;f=online-defrag-cmd;h=7d42ad5cdb6813d262201d6806531f189d3d1f57;hb=35e9fa546ac349cb9a7c4ee9e45ff9747edd9335

This reflects a change that I made in the structure passed in the new
EXT4_IOC_MOVE_EXT ioctl.

Note that I have not done a lot of stress testing of the defrag
functionality, so please be careful using it on production systems.
Please make sure you backup your files before trying to use it.

       	    	     	    	       	      - Ted
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