chflags (uappnd) on ZFS

[Michael]

On 08/02/2011 10:12, Jeremy Chadwick wrote:
> On Tue, Feb 08, 2011 at 10:18:55AM +0100, Damien Fleuriot wrote:
>> Getting the very same error on 8.2-RC3 amd64
>>
>> FreeBSD mybsd 8.2-RC3 FreeBSD 8.2-RC3 #1: Thu Feb  3 11:03:48 CET 2011
>>     root at mybsd:/usr/obj/usr/src/sys/DAM  amd64
>>
>> mybsd# zpool get version data
>> NAME  PROPERTY  VALUE    SOURCE
>> data  version   15       default
>>
>> mybsd# zfs get version
>> NAME  PROPERTY  VALUE    SOURCE
>> data  version   4
>>
>>
>> On 2/7/11 8:52 PM, Michael wrote:
>>> Hello,
>>>
>>> Is uappnd flag supported on ZFS? I'm using 8.1-R and when I try to:
>>>    chflags uappnd file.txt
>>> then I get:
>>>    chflags: file.txt: Operation not supported
>
> It looks like the implemented/translated chflags(2) bits are:
>
> SF_IMMUTABLE ("chflags schg")<-->   ZFS_IMMUTABLE
> SF_APPEND    ("chflags sappnd")<-->   ZFS_APPENDONLY
> SF_NOUNLINK  ("chflags sunlnk")<-->   ZFS_NOUNLINK
> UF_NODUMP    ("chflags nodump")<-->   ZFS_NODUMP
>

Any idea what is the reason for that? I mean is it temporal situation 
(not implemented yet) or are they for some reason dropped/deprecated?

Are the UFlags coming for ZFS or not really?

Michael