mount - unknown option rdma

[Brent Callaghan]

On Feb 8, 2008, at 8:46 AM, Chuck Lever wrote:

> Because RDMA is such a new feature, support for it was added to the C
> string option parser, but not to the legacy binary API.  So for now,
> you need to use the /sbin/mount.nfs subcommand *and* specify "-i" to
> force passing mount options to the kernel via a C string.

Interesting: as I read it, the "rdma" option is required if you want the
client to use an rdma-based transport for the mount.

It implies that if you connect up a shiny new rdma network, you then
have to track down all the fstabs and automounter maps and edit in
the new rdma mount option to use it.

Wouldn't it be easier to have the NFS mount use rdma by default if it's
available, and fall back to "tcp" or "udp" if not ?

	Brent