Re: [PATCH] nfs(5): Document the minorversion= mount option

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On Wed, 2012-11-14 at 18:03 -0500, Chuck Lever wrote:
> On Nov 14, 2012, at 6:01 PM, "Myklebust, Trond" <Trond.Myklebust@xxxxxxxxxx> wrote:
> 
> >> -----Original Message-----
> >> From: linux-nfs-owner@xxxxxxxxxxxxxxx [mailto:linux-nfs-
> >> owner@xxxxxxxxxxxxxxx] On Behalf Of Chuck Lever
> >> Sent: Wednesday, November 14, 2012 5:39 PM
> >> To: linux-nfs@xxxxxxxxxxxxxxx
> >> Subject: [PATCH] nfs(5): Document the minorversion= mount option
> >> 
> >> Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
> >> ---
> >> 
> >> Our pals on the Solaris team recently noticed that the minorversion= option
> >> is not documented in nfs(5).  This is a first take, just to start the conversation.
> >> I'm pretty sure I got the kernel version information wrong, for instance.
> >> 
> >> Any other comments?
> > 
> > You might want to note that it is deprecated in favour of the "vers=4.1" notation, and for that reason we might want to forgo documenting it altogether.
> 
> OK.  minorversion= is the only way to get NFSv4.1 on EL6-based distributions, isn't it?

You didn't seem to be writing a manpage for the RHEL-6 distros: "Before
kernel 2.6.38, the minor version is always zero...". As far as I know,
RHEL-6 is still based on 2.6.32...

> By "deprecated" do you mean that you intend to remove it?

I mean for instance that 'cat /proc/mounts' and friends will use the
'vers=4.1' notation. They won't ever display 'minorversion='.

We may end up removing support for it some day.

-- 
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust@xxxxxxxxxx
www.netapp.com
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