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. -- Jeff Layton <jlayton@xxxxxxxxxxxxxxx> -- 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