From: Nikita Danilov <Nikita@Namesys.COM>
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Message-ID: <16178.25432.716825.351618@laputa.namesys.com>
Date: Thu, 7 Aug 2003 18:34:00 +0400
To: Matthias Schniedermeyer <ms@citd.de>
Cc: Tomas Szepe <szepe@pinerecords.com>, Oleg Drokin <green@namesys.com>,
       Ivan Gyurdiev <ivg2@cornell.edu>,
       Andreas Dilger <adilger@clusterfs.com>, linux-kernel@vger.kernel.org
Subject: Re: reiserfs4
In-Reply-To: <20030807142312.GA901@citd.de>
References: <200308070305.51868.vlad@lazarenko.net>
	<20030806230220.I7752@schatzie.adilger.int>
	<3F31DFCC.6040504@cornell.edu>
	<20030807072751.GA23912@namesys.com>
	<20030807132111.GB7094@louise.pinerecords.com>
	<20030807142312.GA901@citd.de>
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Matthias Schniedermeyer writes:
 > On Thu, Aug 07, 2003 at 03:21:11PM +0200, Tomas Szepe wrote:
 > > > [green@namesys.com]
 > > > 

[...]

 > 
 > That answers the question that poped up in my mind.
 > 
 > "How does the tool know where the blocks are, and in which order it can
 > 'move' then without corrupting the data.(*)

There is FIBMAP ioctl for this.

 > 
 > Seems it doesn't know it.
 > 
 > But it is possibel(*2) to do what the programm wants to do, you only
 > have to find out the order in which you have to copy the blocks to
 > prevent garbage. That's all the magic.
 > 

Nikita.
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