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or Oracle Linux. I don't know if they are shipping ZFS support with it yet. But they are already shipping dtrace with it which suffers from the same license issues.

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I asked the Oracle representative at LinuxCon North America 2014 this question and explicitly mentioned that it was already shipping CDDL kernel code because of DTrace. He could not answer this question, but claimed that he would get back to me. So far, I have not heard back.

They are currently using a trick trying to circumvent the EXPORT_SYMBOL_GPL issue. But it is highly dubious whether this is legally sound:

ktime_t dtrace_gethrtime(void) { return ktime_get(); } EXPORT_SYMBOL(dtrace_gethrtime);

http://mjg59.dreamwidth.org/31357.html

In the end I assume this is intentional to keep the license issue of dtrace and ZFS in a dubious state. Thus preventing other distributions from shipping it. Meanwhile Oracle can ship it because they aren't going to sue themselves and the kernel folks seem rather uninterested in lawsuits as well (and even if they did then Oracle could drag it out forever considering that the company seems to have more lawyers than developers).

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