Signed-off-by: Suresh suresh.k.chandrappa@gmail.com --- tools/testing/selftests/mincore/mincore_selftest.c | 5 +++++ 1 file changed, 5 insertions(+)

diff --git a/tools/testing/selftests/mincore/mincore_selftest.c b/tools/testing/selftests/mincore/mincore_selftest.c index 17ed3e9917ca..c4f0d21f7678 100644 --- a/tools/testing/selftests/mincore/mincore_selftest.c +++ b/tools/testing/selftests/mincore/mincore_selftest.c @@ -146,6 +146,11 @@ TEST(check_huge_pages) page_size = sysconf(_SC_PAGESIZE);

errno = 0; + /* + * Attempt to map a huge page + * MAP_HUGETLB flag requests a huge page allocation + * Size is normal page_size, but kernel uses huge page backing + */ addr = mmap(NULL, page_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB, -1, 0);