[PATCH] xfs: show uuid when mount fails due to duplicate uuid

[Christoph Hellwig]

On Fri, Jan 13, 2012 at 02:58:39PM +0900, Mitsuo Hayasaka wrote:
> When a system tries to mount a filesystem (FS) using UUID, the xfs
> returns -EINVAL and shows a message if a FS with the same UUID has
> been already mounted. It is useful to output the duplicate UUID
> with it.

The new version looks fine to me, thanks a lot!