[PATCH v3 0/8] selftests/mm fixes for arm64

[Ryan Roberts <ryan.roberts@arm.com>]

Hi All,

This is v3 of my series to clean up mm selftests so that they run correctly on
arm64. See [1] for full explanation.

Only patch 6 has changed vs v2. The rest are the same and already carry
reviewed/acked-bys. So I'm hoping I can get the final patch reviewed and this
series is hopefully then good enough to merge?

Changes Since v2 [2]
--------------------

  - Patch 6: Change approach to cleaning up child processes; Use "parent death
    signal", as suggested by David.
  - Added Reviewed-by/Acked-by tags: thanks to David, Mark and Peter!

Changes Since v1 [1]
--------------------

  - Patch 1: Explicitly set line buffer mode in ksft_print_header()
  - Dropped v1 patch 2 (set execute permissions): Andrew has taken this into his
    branch separately.
  - Patch 2: Don't compile `soft-dirty` suite for arm64 instead of skipping it
    at runtime.
  - Patch 2: Declare fewer tests and skip all of test_softdirty() if soft-dirty
    is not supported, rather than conditionally marking each check as skipped.
  - Added Reviewed-by tags: thanks DavidH!
  - Patch 8: Clarified commit message.


[1] https://lore.kernel.org/linux-mm/20230713135440.3651409-1-ryan.roberts@arm.com/
[2] https://lore.kernel.org/linux-mm/20230717103152.202078-1-ryan.roberts@arm.com/

Thanks,
Ryan


Ryan Roberts (8):
  selftests: Line buffer test program's stdout
  selftests/mm: Skip soft-dirty tests on arm64
  selftests/mm: Enable mrelease_test for arm64
  selftests/mm: Fix thuge-gen test bugs
  selftests/mm: va_high_addr_switch should skip unsupported arm64
    configs
  selftests/mm: Make migration test robust to failure
  selftests/mm: Optionally pass duration to transhuge-stress
  selftests/mm: Run all tests from run_vmtests.sh

 tools/testing/selftests/kselftest.h           |  9 ++
 tools/testing/selftests/kselftest/runner.sh   |  7 +-
 tools/testing/selftests/mm/Makefile           | 82 ++++++++++---------
 tools/testing/selftests/mm/madv_populate.c    | 26 +++++-
 tools/testing/selftests/mm/migration.c        | 12 ++-
 tools/testing/selftests/mm/mrelease_test.c    |  1 +
 tools/testing/selftests/mm/run_vmtests.sh     | 28 ++++++-
 tools/testing/selftests/mm/settings           |  2 +-
 tools/testing/selftests/mm/thuge-gen.c        |  4 +-
 tools/testing/selftests/mm/transhuge-stress.c | 12 ++-
 .../selftests/mm/va_high_addr_switch.c        |  2 +-
 11 files changed, 132 insertions(+), 53 deletions(-)

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2.25.1