linux-ext4 - Re: [RFC] Ext3 online defrag

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Message-ID: <m3vembnlwz.fsf@bzzz.home.net>
Date:	Mon, 23 Oct 2006 18:31:40 +0400
From:	Alex Tomas <alex@...sterfs.com>
To:	Theodore Tso <tytso@....edu>
Cc:	Jan Kara <jack@...e.cz>, linux-fsdevel@...r.kernel.org,
	linux-ext4@...r.kernel.org
Subject: Re: [RFC] Ext3 online defrag

>>>>> Theodore Tso (TT) writes:

 TT> On Mon, Oct 23, 2006 at 02:27:10PM +0200, Jan Kara wrote:
 >> Hello,
 >> 
 >> I've written a simple patch implementing ext3 ioctl for file
 >> relocation. Basically you call ioctl on a file, give it list of blocks
 >> and it relocates the file into given blocks (provided they are still
 >> free). The idea is to use it as a kernel part of ext3 online
 >> defragmenter (or generally disk access optimizer). 

isn't that a kernel responsbility to find/allocate target blocks?
wouldn't it better to specify desirable target group and minimal
acceptable chunk of free blocks?

thanks, Alex
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