filesystem shrinks after using xfs_repair

[Christoph Hellwig]

On Fri, Jul 30, 2010 at 09:15:54AM +0200, Emmanuel Florac wrote:
> > Is that something I could do now, or only when the filesystem is
> > created? If I mount it with '-o inode64', can I mount it without that
> > later, or once I write to the filesystem like that, can I not go back
> > to mounting it in 32 bit mode? 
> 
> You use inode64 at mount, however there is no return. Once you have
> used a filesystem with "inode64", you must use it always.

Recent enough kernel work fine with filesystems that inode64 was used
on even if it's not specified anymore.