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a0ac9b3598
Patch series "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
This patch (of 4):
... we have to kmap()/kunmap(), otherwise this won't work as expected
with highmem.
Link: https://lkml.kernel.org/r/20221205193716.276024-1-david@redhat.com
Link: https://lkml.kernel.org/r/20221205193716.276024-2-david@redhat.com
Fixes: c77369b437 ("mm/gup_test: start/stop/read functionality for PIN LONGTERM test")
Signed-off-by: David Hildenbrand <david@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>,
Cc: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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