Re: XATTRs in NFS?

["Matt W. Benjamin" <matt@linuxbox.com>]

Hi,

Sorry I was not clear.  I was not re-stating support for this banned feature.

I'm interested in implementation code I can use privately under GPLv2.

Thanks!

Matt

----- "Trond Myklebust" <Trond.Myklebust@netapp.com> wrote:

> On Thu, 2013-10-24 at 11:05 -0400, Matt W. Benjamin wrote:
> > Hi,
> > 
> > Presumably Linux client and server implementations would restrict
> use of "system."
> > Perhaps would be more to talk about, if xattrs were implemented
> experimentally.
> > 
> > I'm interested in knowing about patches that might be floating
> around for the Linux client, for NFSv4.x.  (I've seen NFSv3 work.)
> > 
> > Thanks,
> > 
> > Matt
> 
> We've already talked about this, Matt. The answer is still NO.
> 
> Trond
> 
> > ----- "Trond Myklebust" <Trond.Myklebust@netapp.com> wrote:
> > 
> > > On Oct 24, 2013, at 3:13 PM, Christoph Anton Mitterer
> > > <calestyo@scientia.net> wrote:
> > > 
> > > > On Thu, 2013-10-24 at 08:45 +0000, Myklebust, Trond wrote:
> > > >> labeled NFS (i.e. security labels for NFS) is already supported
> in
> > > Linux 3.10 and newer.
> > > > Sure, but that doesn't really help me.
> > > > 
> > > > 
> > > >> There are no plans to merge general purpose xattrs.
> > > > Why not? Is it a big deal?
> > > > 
> > > 
> > > Linux xattrs are a rabid mess.
> > > 
> > > The whole "system" namespace is something that cannot and should
> not
> > > ever be exposed on a network.
> > > The "trusted" and "user" namespaces just offer specialised
> storage.
> > > Why are they needed?
> > > 
> > > > 
> > > >> Please just use an application-specific database.
> > > > Well that won't work,... since that wouldn't be updated if e.g.
> > > > pathnames are changed by any program (cp, mv)
> > > 
> > > If the data needs to follow the file, then store it in the file.
> Why
> > > do you need the filesystem to manage that for you?
> > > 
> > > Cheers
> > >   Trond--
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> > 
> 
> -- 
> Trond Myklebust
> Linux NFS client maintainer
> 
> NetApp
> Trond.Myklebust@netapp.com
> www.netapp.com
> --
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-- 
Matt Benjamin
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