Re: Sun's ZFS and Linux

[Bernd Petrovitsch]

On Sat, 2005-11-19 at 12:23 -0500, Theodore Ts'o wrote:
> On Fri, Nov 18, 2005 at 11:38:16PM +0000, Tarkan Erimer wrote:
> > 
> > On Nov.16, Sun has open sourced the
> > (http://www.opensolaris.org/os/announcements/#2005-11-16_welcome_to_the_zfs_community_
> > ) ZFS. I know that, It is licensed under CDDL. So, It is not GPL
> > compatible. In this situation, there is no way for Linux mainline. But
> > I wonder, is there anybody has a plan to port ZFS for Linux as a
> > separate patch ?
> 
> That wouldn't be a "port", it would have to be a complete
> reimplementation from scratch.  And, of course, of further concern
> would be whether or not there are any patents that Sun may have filed
> covering ZFS.  If the patents have only been licensed for CDDL
> licensed code, then that won't help a GPL'ed covered reimplementation.

Hmm, one could thake the zfs as a blurb and write a GPL'ed adapter (as
external patch) to the Kernel (similar to the nvidia ones and their
binary blurb drivers). The ZFS blurb would count as "not derived" since
it is IMHO exactly that.
And now I don't know if it makes sense, could actually work or how much
work it is. Experienced VFS people may have a opinion on this.

	Bernd
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