svn commit: r289415 - in head: . sys/sys

[Alexander Motin]

On 16.10.2015 21:26, Alexander Motin wrote:
> On 16.10.2015 21:17, Bryan Drewery wrote:
>> On 10/16/2015 1:57 AM, Alexander Motin wrote:
>>> Author: mav
>>> Date: Fri Oct 16 08:57:11 2015
>>> New Revision: 289415
>>> URL: https://svnweb.freebsd.org/changeset/base/289415
>>>
>>> Log:
>>>   Bump version and add notice about incompatibility introduced by resumable
>>>   send/receive support in ZFS.
>>>
>>> Modified:
>>>   head/UPDATING
>>>   head/sys/sys/param.h
>>>
>>> Modified: head/UPDATING
>>> ==============================================================================
>>> --- head/UPDATING	Fri Oct 16 08:22:21 2015	(r289414)
>>> +++ head/UPDATING	Fri Oct 16 08:57:11 2015	(r289415)
>>> @@ -31,6 +31,12 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 11
>>>  	disable the most expensive debugging functionality run
>>>  	"ln -s 'abort:false,junk:false' /etc/malloc.conf".)
>>>  
>>> +20151015:
>>> +	Added ZFS support for resumable send/receive changed respective
>>> +	IOCTL API/ABI.  Compatibility ABI shims were provided for other
>>> +	functionality, while receive require version match between world
>>> +	and kernel.
>>
>> This means for example that 'zfs recv' in a 10.2 jail running on a 11.0
>> kernel will not work? Can compatibility be added for it?
> 
> The structures passed as argument for receive are large and completely
> different. Unfortunately I don't know enough about that code to say
> whether new one can be forged from the old one. I'll take another look,
> but can not promise anything.

My first thought I was wrong. r289445 should fix compatibility.

-- 
Alexander Motin