Linked by Rahul on Fri 31st Oct 2008 16:12 UTC

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Member since:
2005-07-06
ZFS is licensed under CDDL. This license is GPL incompatible and apparently deliberately designed to be so, because some of Sun folks were worried about losing their technology to Linux and some developers threatened to quit if their work was put under GPL (by far the most used foss license. refer http://www.dwheeler.com/essays/gpl-compatible.html ).
You can find a reference in this video linked from
http://lists.debian.org/debian-devel-announce/2006/09/msg00002.html
Linux developers cannot possibly just take code and ignore the licensing incompatibility. So they are being prudent and implementing things from scratch in Linux taking advantage of existing Linux kernel API including the vfs and block layer. Yes, it is unfortunate that license incompatibility between free and open source software prevents it from being reused but when vendors do it deliberately, not much can be done about it