On Thu, Jan 08, 2015 at 12:41:31PM -0800, Jeff Layton wrote: > On Wed, 7 Jan 2015 11:28:02 +0100 > Christoph Hellwig <hch@xxxxxx> wrote: > > > On Tue, Jan 06, 2015 at 11:42:05AM -0800, Jeff Layton wrote: > > > Or maybe an "on" switch? > > > > > > We have some patches (not posted currently) that add a "pnfs" export > > > option. Maybe we should add that and only enable pnfs on exports that > > > have that option present? > > > > I would defintively prefer the off switch. I can add one if people want > > it, but export options are a little annoying as they require support > > not only in the kernel but also in nfs-utils. > > True, it is a pain, but I think it's realistic to expect someone who > wants to do pnfs to have an updated nfs-utils. It wouldn't take too > long for it to trickle out to the various distros and adding new export > options is fairly simple to do. > > If we do want to go that route, it might be nice to do the option with > a list of layout types. For example: > > pnfs=block:file:flexfiles > > ...so we could potentially support more than one layout type per > export. I like the goal of making this as close to zero-configuration as possible, and I'd rather wait for a demonstrated need till we add per-export or multiple-layout-type configuration. A global off switch sounds OK to me. --b. -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html