On Fri, Sep 27, 2019 at 01:52:32PM +0300, Nikolay Borisov wrote: > _scratch_pool_mkfs special cases the command executed when 'dup' option > is used when creating a filesystem. This is wrong since 'dup' works > for all profiles and number of devices. This bug manifested while > exercising btrfs' balance argument combinations test. All profile combinations should be valid (mkfs, balance convert) since 4.5-ish, so Reviewed-by: David Sterba <dsterba@xxxxxxxx>