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Cg==
Actually, that reasoning sounds a little like a concession that the feature should be blocked precisely because it may be tremendously popular (useful). I don't think the argument that proplists can be the building blocks for new system--but also application--functionality is a good argument against them.
----- "Trond Myklebust" <[email protected]> wrote:
> On Wed, 2012-11-14 at 11:47 +0100, Tigran Mkrtchyan wrote:
> > That's bad news.... Currently we use 'magic files' to set/get user
> > specific metadata like number of events, space reservation and
> > different file retention policies. The hope was that all could be
> done
> > with named attributes.
> >
> > Tigran.
> >
>
> The setting and querying of retention policies is already covered in
> the
> NFSv4.1 protocol without any need for any additions. Space
> reservation
> is already covered in NFSv4.2 (as are security labels - another
> common
> hobby-horse for xattr advocates). Why don't you implement those
> instead
> of wishing for a completely different way of doing the same thing?
>
> Your argument demonstrates precisely why we should never do xattrs
> over
> NFS. It makes it way too easy to go off and invent your own private
> and
> non-standard protocol for doing ioctl()-like RPC calls.
>
> > On Tue, Nov 13, 2012 at 8:54 AM, DENIEL Philippe
> > <[email protected]> wrote:
> > A few years ago, SGI tried to promote "NFS3 XATTR", an
> > extension to NFSv3 to add xattr support. It roughly added 3
> > functions to the protocol (GETXATTR, SETXATTR, LISTXATTR),
> in
> > a similar way as what 9p.2000L does. Nothing but IRIX had
> this
> > NFSv3 feature. As far as I know, it remained quite exotic
> and
> > stayed a SGI's thing.
> >
> > Philippe
> >
> > Matt W. Benjamin a écrit :
> >
> > Can you restate reasoning why it will never do so,
> and
> > whether this is the same as saying it will never
> > implement named attributes?
> >
> > Thanks,
> >
> > Matt
> >
> > ----- "Trond Myklebust"
> <[email protected]>
> > wrote:
> >
> >
> > No. We will never support xattrs over NFS.
> >
> >
> > -----Original Message-----
> > From:
> [email protected]
> > [mailto:linux-nfs-
> > [email protected]] On Behalf Of
> > Tomasz Chmielewski
> > Sent: Monday, November 12, 2012
> 10:14
> > AM
> > To: [email protected]
> > Subject: xattr support in NFS?
> >
> > Does Linux support xattr in NFS?
> >
> > IF tries using it in both NFS3 and
> > NFS4 under Debian Lenny (2.6.32,
> >
> > both
> >
> > server and client), without
> success.
> >
> > # setfattr -n user.comment -v "this
> is
> > a comment" /mnt/nfs
> > setfattr: /mnt/nfs: Operation not
> > supported
> >
> >
> > --
> > Tomasz Chmielewski
> > http://blog.wpkg.org
> > --
> > To unsubscribe from this list: send
> > the line "unsubscribe linux-nfs"
> >
> > in the
> >
> > body of a message to
> > [email protected] More
> > majordomo info
> >
> > at
> >
> >
> http://vger.kernel.org/majordomo-info.html
> >
> > N�����r��y���b�X��ǧv�^�){.n�
> > +����{���"��^n�r���z���h����&���G���h�(�階
> > �ݢj"���m�����z�ޖ���f���h���~�m�
> >
> >
> >
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe
> > linux-nfs" in
> > the body of a message to [email protected]
> > More majordomo info at
> > http://vger.kernel.org/majordomo-info.html
> >
> >
> >
>
> --
> Trond Myklebust
> Linux NFS client maintainer
>
> NetApp
> [email protected]
> http://www.netapp.com
> N�����r��y���b�X��ǧv�^�){.n�+����{���"��^n�r���z���h����&���G���h�(�階�ݢj"���m�����z�ޖ���f���h���~�m�
--
Matt Benjamin
The Linux Box
206 South Fifth Ave. Suite 150
Ann Arbor, MI 48104
http://linuxbox.com
tel. 734-761-4689
fax. 734-769-8938
cel. 734-216-5309
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