Function _scratch_mkfs_sized cannot recognize the size descriptor. For example, we set MKFS_OPTIONS="-b 4k" and then run generic/416 on ext4, will fail with "mkfs.ext4: invalid block size - 4". The [PATCH 2/2] based on [PATCH 1/2]. Full story is here: https://lore.kernel.org/fstests/Yre%2F9qV62dtVyCvn@xxxxxxx/T/#t https://lore.kernel.org/fstests/20220621044038.ppvdexgob3kzs46m@zlang-mailbox/T/#t An Long (2): common/config: add _check_mkfs_block_options common/rc: fix input value to _scratch_mkfs_sized README | 4 ++++ common/config | 30 ++++++++++++++++++++++++++++++ common/rc | 16 +--------------- 3 files changed, 35 insertions(+), 15 deletions(-) base-commit: 568ac9fffeb6afec03e5d6c9936617232fd7fc6d -- 2.35.3