btrfs: check conversion of zoned fileystems

Recently we had a bug where a zoned filesystem could be converted to a
higher data redundancy profile than supported.

Add a test-case to check the conversion on zoned filesystems.

Reviewed-by: Filipe Manana <>
Reviewed-by: Anand Jain <>
Signed-off-by: Johannes Thumshirn <>
Signed-off-by: Anand Jain <>
2 files changed