From: "Mike Rapoport (Microsoft)" <[email protected]>

hugetlb_madv_vs_map test skips testing if there are no free huge pages
prepared by a wrapper script.

Add setup of HugeTLB pages to the test and make sure that the original
settings are restored on the test exit.

Signed-off-by: Mike Rapoport (Microsoft) <[email protected]>
---
 tools/testing/selftests/mm/hugetlb_madv_vs_map.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/mm/hugetlb_madv_vs_map.c 
b/tools/testing/selftests/mm/hugetlb_madv_vs_map.c
index dfbd71a7f709..6c95dd23ca81 100644
--- a/tools/testing/selftests/mm/hugetlb_madv_vs_map.c
+++ b/tools/testing/selftests/mm/hugetlb_madv_vs_map.c
@@ -77,7 +77,6 @@ void *map_extra(void *unused)
 int main(void)
 {
        pthread_t thread1, thread2, thread3;
-       unsigned long free_hugepages;
        void *ret;
 
        /*
@@ -89,11 +88,9 @@ int main(void)
        ksft_print_header();
        ksft_set_plan(1);
 
-       free_hugepages = hugetlb_free_default_pages();
-
-       if (free_hugepages != 1)
+       if (!hugetlb_setup_default(1))
                ksft_exit_skip("This test needs one and only one page to 
execute. Got %lu\n",
-                              free_hugepages);
+                              hugetlb_free_default_pages());
 
        mmap_size = default_huge_page_size();
 
-- 
2.53.0


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