xfs compat_ioctl?

[Christoph Hellwig]

On Mon, Aug 31, 2009 at 11:02:51AM +0400, Michael Tokarev wrote:
> Hello!
>
> I tried to resize an xfs filesystem on 64bit 2.6.30 kernel
> using 32bit userland, and that does not work, in dmesg I see:
>
> ioctl32(xfs_growfs:24426): Unknown cmd fd(3) cmd(400c586e){t:'X';sz:12} arg(ffa56df4) on /mnt
> ioctl32(xfs_growfs:24427): Unknown cmd fd(3) cmd(400c586e){t:'X';sz:12} arg(ff991254) on /mnt
>
> so apparently there's no compat_ioctl layer for these ioctls.
>
> Are there any plans to add these? :)

Are you sure you're testing 2.6.30?  The copat ioctls were added in
2.6.28.