From: "Lever, Charles" <Charles.Lever@netapp.com>
Subject: RE: [PATCH] 1/3 - RPC metrics support
Date: Sat, 3 Apr 2004 18:35:48 -0800
Sender: nfs-admin@lists.sourceforge.net
Message-ID: <482A3FA0050D21419C269D13989C611302B07BFD@lavender-fe.eng.netapp.com>
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Cc: <nfs@lists.sourceforge.net>
To: "Greg Banks" <gnb@sgi.com>, "Trond Myklebust" <trond.myklebust@fys.uio.no>
Errors-To: nfs-admin@lists.sourceforge.net

> On Thu, Apr 01, 2004 at 07:36:27PM -0500, Trond Myklebust wrote:
> > On Thu, 2004-04-01 at 12:05, Lever, Charles wrote:
> >=20
> > > if we saved the export path somewhere in the nfs_server
> > > structure, that would be mighty convenient for iostats
> > > and i don't think that would break namespaces.
> >=20
> > ...but it would force us to introduce a new mount_data=20
> structure, and
> > hence a new "mount" ABI so that will have to wait until 2.7.x.
>=20
> Why not just save a copy of @devname in nfs_get_sb() ?  It's
> the same name that's stored in struct vfsmount and reported
> in /proc/mounts.

unless i've missed something, there are only two NFS functions
that take vfsmount as an argument.  one is nfs_show_options, and
the other is nfs_getattr.

the vfsmount struct is not available to the NFS client during a
mount operation.


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