On Mon, 26 Apr 2010 06:28:44 -0400 Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > On Mon, Apr 26, 2010 at 08:16:33PM +1000, Neil Brown wrote: > > uuids - as Ted as shown - are not necessarily unique (despite the name), > > so using them to perform a lookup will either be imperfect (not good for a > > kernel interface) or will impose extra uniqueness which would break current > > configurations. > > UUID can easily be made unique. XFS for example refuses to mount > filesystems with duplicate UUIDs. > In the email from Ted that I referred to he identified two cases where UUIDs are not unique. Are you suggesting that we should cause those use-cases - which work today - to fail? NeilBrown -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html