[PATCH V12] mm/debug: Add tests validating architecture page table helpers

[Qian Cai]

> On Jan 28, 2020, at 1:17 AM, Christophe Leroy <christophe.leroy at c-s.fr> wrote:
> 
> It is 'default y' so there is no much risk that it is forgotten, at least all test suites run with 'allyes_defconfig' will trigger the test, so I think it is really a good feature.

This thing depends on DEBUG_VM which I don’t see it is selected by any defconfig. Am I missing anything?