BTRFS hybrid systems

[Bhasker C V <bhasker@unixindia.com>]

Hi all

  I have an x86_64 kernel running with i386 userland rootfs.

 Long back I believe there were some fixes for btrfs-tools which ran smoothly in this setup but after several dist-upgrades and long forgotten command, the btrfs-tools commands have started to fail

for instance

$ sudo btrfs fi sync  .
ERROR: sync ioctl failed on '.': Inappropriate ioctl for device
$

Is there any fix for this ?