On Wed, 2015-07-22 at 15:06 -0700, Andrew Morton wrote:

On Tue, 21 Jul 2015 11:09:34 -0700 Mike Kravetz [off-list ref] wrote:

quoted

As suggested during the RFC process, tests have been proposed to
libhugetlbfs as described at:
http://librelist.com/browser//libhugetlbfs/2015/6/25/patch-tests-add-tests-for-fallocate-system-call/

Great!

I didn't know that libhugetlbfs has tests.  I wonder if that makes
tools/testing/selftests/vm's hugetlbfstest harmful?

Why harmful? Redundant, maybe(?). Does anyone even use selftests for
hugetlbfs regression testing? Lets see, we also have these:

- hugepage-{mmap,shm}.c
- map_hugetlb.c

There's probably a lot of room for improvement here.