[PATCH V2 00/13] selftests: ublk: test cleanup & add more tests

[Ming Lei <ming.lei@redhat.com>]

Hello Jens,

This patchset cleans up ublk selftests and add more tests:

- two bug fixes(1, 2)

- cleanup (3, 4)

- allow to run tests in parallel(5), also big simplification on
test script

- add two stress tests for zero copy(6)

- kublk misc change(7, 8, 9), helps for evaluating performance

- support target specific command line, so help to add new
target(Uday is working on fault-inject target) (10)

- add two tests for covering recovery features(11)

- add one heavy io & remove test over recovery enabled device(12),
which can catch io hang triggered by several recent patches.

- the last patch is for making sure ublk temp file is cleaned up
if test is skipped

With this change, kernel built-in ublk selftests can :

- cover almost all tests done by ublksrv 'make test T=generic', which has
been effective to capture driver issue early, so it will make ublk driver
development more efficiently

- add more stress tests for covering ublk zc feature, which has found one
kernel panic issue introduced recently, fix merged already

- help to add new tests, such as per-target command line, which
will help to write fault-inject target


Thanks,

V2:
	- use ARRAY_SIZE() (Johannes Thumshirn)
	- drop one driver bug fix
	- fix ublk temp file cleanup
	- improve document

Ming Lei (13):
  selftests: ublk: fix ublk_find_tgt()
  selftests: ublk: add io_uring uapi header
  selftests: ublk: cleanup backfile automatically
  selftests: ublk: make sure _add_ublk_dev can return in sub-shell
  selftests: ublk: run stress tests in parallel
  selftests: ublk: add two stress tests for zero copy feature
  selftests: ublk: setup ring with
    IORING_SETUP_SINGLE_ISSUER/IORING_SETUP_DEFER_TASKRUN
  selftests: ublk: set queue pthread's cpu affinity
  selftests: ublk: increase max nr_queues and queue depth
  selftests: ublk: support target specific command line
  selftests: ublk: support user recovery
  selftests: ublk: add test_stress_05.sh
  selftests: ublk: move creating UBLK_TMP into _prep_test()

 tools/testing/selftests/ublk/Makefile         |   5 +
 tools/testing/selftests/ublk/kublk.c          | 342 ++++++++++++++++--
 tools/testing/selftests/ublk/kublk.h          |  39 +-
 tools/testing/selftests/ublk/stripe.c         |  28 +-
 tools/testing/selftests/ublk/test_common.sh   | 142 ++++++--
 .../testing/selftests/ublk/test_generic_04.sh |  40 ++
 .../testing/selftests/ublk/test_generic_05.sh |  44 +++
 tools/testing/selftests/ublk/test_loop_01.sh  |   8 +-
 tools/testing/selftests/ublk/test_loop_02.sh  |   8 +-
 tools/testing/selftests/ublk/test_loop_03.sh  |   8 +-
 tools/testing/selftests/ublk/test_loop_04.sh  |   9 +-
 tools/testing/selftests/ublk/test_loop_05.sh  |   8 +-
 .../testing/selftests/ublk/test_stress_01.sh  |  45 +--
 .../testing/selftests/ublk/test_stress_02.sh  |  45 +--
 .../testing/selftests/ublk/test_stress_03.sh  |  38 ++
 .../testing/selftests/ublk/test_stress_04.sh  |  37 ++
 .../testing/selftests/ublk/test_stress_05.sh  |  64 ++++
 .../testing/selftests/ublk/test_stripe_01.sh  |  12 +-
 .../testing/selftests/ublk/test_stripe_02.sh  |  13 +-
 .../testing/selftests/ublk/test_stripe_03.sh  |  12 +-
 .../testing/selftests/ublk/test_stripe_04.sh  |  13 +-
 21 files changed, 786 insertions(+), 174 deletions(-)
 create mode 100755 tools/testing/selftests/ublk/test_generic_04.sh
 create mode 100755 tools/testing/selftests/ublk/test_generic_05.sh
 create mode 100755 tools/testing/selftests/ublk/test_stress_03.sh
 create mode 100755 tools/testing/selftests/ublk/test_stress_04.sh
 create mode 100755 tools/testing/selftests/ublk/test_stress_05.sh

-- 
2.47.0