On Fri, 10 Jul 2026 17:24:27 +0800 Muchun Song <[email protected]> wrote:
> The hugetlb vmemmap selftest was added to check the old HVO > layout where tail vmemmap pages reused the head page. That > assumption no longer matches the current HVO mapping layout. > > HVO now keeps a private backing page for the head vmemmap page > and remaps redundant tail vmemmap pages to a shared read-only > backing page. The old page flag check is therefore testing an > obsolete implementation detail rather than the current ABI or > behavior. > > Remove the stale test and its build, run, and ignore entries. Nice! > > Signed-off-by: Muchun Song <[email protected]> Reviewed-by: SJ Park <[email protected]> > --- > tools/testing/selftests/mm/.gitignore | 2 - > tools/testing/selftests/mm/Makefile | 1 - > tools/testing/selftests/mm/hugetlb-vmemmap.c | 132 ------------------- > tools/testing/selftests/mm/run_vmtests.sh | 1 - > 4 files changed, 136 deletions(-) > delete mode 100644 tools/testing/selftests/mm/hugetlb-vmemmap.c > > diff --git a/tools/testing/selftests/mm/.gitignore > b/tools/testing/selftests/mm/.gitignore > index 9ccd9e1447e6..227476d8ff1f 100644 > --- a/tools/testing/selftests/mm/.gitignore > +++ b/tools/testing/selftests/mm/.gitignore > @@ -3,11 +3,9 @@ cow > hugepage-mmap > hugepage-mremap > hugepage-shm > -hugepage-vmemmap > hugetlb-mmap > hugetlb-mremap > hugetlb-shm > -hugetlb-vmemmap > hugetlb-madvise > hugetlb-read-hwpoison > hugetlb-soft-offline I remember Linus argued [1] we shouldn't remove names from giignore. I don't really care, so feel free to add my R-b: tag. I just wanted to call out, though. [1] https://lore.kernel.org/all/CAHk-=whVY4mq1Fd=vhwy0dk8fr5colkiy1ozmg4qyemaged...@mail.gmail.com/ Thanks, SJ [...]
