linux-kernel - Re: Versioning file system

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Date:	Sat, 16 Jun 2007 04:12:14 -0600
From:	"Jeffrey V. Merkey" <jmerkey@...fmountaingroup.com>
To:	"Jeffrey V. Merkey" <jmerkey@...fmountaingroup.com>
CC:	Jack Stone <jack@...keye.stone.uk.eu.org>,
	alan <alan@...eserver.org>, hpa@...or.com,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	akpm@...ux-foundation.org, viro@...iv.linux.org.uk
Subject: Re: Versioning file system

Jeffrey V. Merkey wrote:

>
> This already exists -- it just not open sourced, and you could spend 
> years trying to create it.  Trust me, once you start dealing with the 
> distributed issues with this, its gets very complex.  I am not meaning 
> to discourage you, but there are patents already filed on this on 
> Linux.    So you need to consider these as well, and there are several 
> folks who are already doing this or have done it.  If it goes into 
> Microsoft endorsed cross licensed Linuxes It may be ok (Vertias sold 
> this capability to Microsoft already, about 12 patents there to worry 
> over).  There's also another patent filed as well.  It's a noble 
> effort to do a free version, but be aware there's some big guns with 
> patents out there already, not to mention doing this is complex beyond 
> belief.
> Anyway good luck.  ~~~~
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I reviewed your sample implementation, and it appears to infringe 3 
patents already.    You should do some research on this.  ~~~~
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