[v2,0/3] fstests: Fix order of _require_scratch* and _require_dm_target

Message

Shin'ichiro Kawasaki Sept. 8, 2021, 8:37 a.m. UTC

Test cases with dm_target shall call _require_scratch* before
_require_dm_target. However, three test cases generic/628, generic/629 and
btrfs/146 do not follow this rule and result in unexpected failures. The first
patch in this series fixes the failures in generic/628 and generic/629. The
second patch fixes it in btrfs/146. The last patch improves _require_dm_target
to prevent the failure in the future test cases to be added.

The failure was found with generic/628 and generic/629. I checked all existing
test cases and found btrfs/146 also has the issue.

Changes from v1:
* Changed fix approach according to comment on the list
* Added fix for btrfs/146 as the 2nd patch
* Separated improvement in _require_dm_target as the last patch

Shin'ichiro Kawasaki (3):
  generic/{628,629}: Fix order of _require_scratch* and
    _require_dm_target
  btrfs/146: Add _require_scratch_dev_pool before _require_dm_target
  common/rc: Check call order of _require_dm_target and
    _require_scratch*

 common/rc         | 3 +++
 tests/btrfs/146   | 1 +
 tests/generic/628 | 2 +-
 tests/generic/629 | 2 +-
 4 files changed, 6 insertions(+), 2 deletions(-)