add testcase for mbind
cleanup for clear_refs
add more strict check on checked_mmap
fix checked_mmap
fix lib/memalloc.c
cleanup
mbind test fix
more fix for new return code handling
set return code to FAIL at _do_test_async()
fix lib/mbind.c to avoid thp on anon zone
add test pagemap
fix comment
add memset and munmap
lib/pagemap.c remove open_pagemap
add mem_pingpong testcase
add hwpoison testcase
add hwpoison on hugetlbfs testcase
remove useless output