Re: [PATCH 2/2] selftests/mm: add MADV_COLLAPSE sub-PMD range tests

[David Hildenbrand (Arm)]

On 5/7/26 09:05, Chen Wandun wrote:
> Add madv_collapse_range to verify the fix for the spurious -EINVAL
> returned by madvise_collapse() when the madvised range contains no
> complete PMD-aligned window.

Do we really need 141 LOC of test to verify a "userspace is being stupid" scenario?

Nothing was really broken, it's just a suboptimal return value, or what am I
missing?

-- 
Cheers,

David