linux-kernel - [PATCH mm-unstable v1 0/4] selftests/vm: fix some tests on 32bit

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Date:   Mon,  5 Dec 2022 20:37:12 +0100
From:   David Hildenbrand <david@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     linux-mm@...ck.org, linux-kselftest@...r.kernel.org,
        David Hildenbrand <david@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Shuah Khan <shuah@...nel.org>,
        Yang Li <yang.lee@...ux.alibaba.com>
Subject: [PATCH mm-unstable v1 0/4] selftests/vm: fix some tests on 32bit

I finally had the time to run some of the selftests written by me
(especially "cow") on x86 PAE. I found some unexpected "surprises" :)

With these changes, and with [1] on top of mm-unstable, the "cow" tests and
the "ksm_functional_tests" compile and pass as expected (expected failures
with hugetlb in the "cow" tests). "madv_populate" has one expected test
failure -- x86 does not support softdirty tracking.

#1-#3 fix commits with stable commit ids. #4 fixes a test that is not in
mm-stable yet.

A note that there are many other compile errors/warnings when compiling
on 32bit and with older Linux headers ... something for another day.

[1] https://lkml.kernel.org/r/20221205150857.167583-1-david@redhat.com

Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Shuah Khan <shuah@...nel.org>
Cc: Yang Li <yang.lee@...ux.alibaba.com>

David Hildenbrand (4):
  mm/gup_test: fix PIN_LONGTERM_TEST_READ with highmem
  selftests/vm: madv_populate: fix missing MADV_POPULATE_(READ|WRITE)
    definitions
  selftests/vm: cow: fix compile warning on 32bit
  selftests/vm: ksm_functional_tests: fixes for 32bit

 mm/gup_test.c                                     | 10 +++++++---
 tools/testing/selftests/vm/cow.c                  |  4 ++--
 tools/testing/selftests/vm/ksm_functional_tests.c |  4 ++--
 tools/testing/selftests/vm/madv_populate.c        |  7 +++++++
 tools/testing/selftests/vm/vm_util.c              |  2 +-
 5 files changed, 19 insertions(+), 8 deletions(-)

-- 
2.38.1