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@linux-foundation.org Cc: Shuah Khan shuah@kernel.org Cc: Yang Li yang.lee@linux.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(-)