On Fri, 11 Sep 2026 13:02:20 +0800, Muchun Song <[email protected]> wrote: > init_compound_tail() is only used by vmemmap_shared_tail_page(), where > the shared tail page setup intentionally passes NULL as the compound head. > > Keeping this helper in mm/internal.h exposes that special case to the rest > of the MM code and can make the NULL head argument look generally valid. > Open-code the initialization at the only call site so the special-case use > stays local to sparse vmemmap optimization. > > [...]
Acked-by: Mike Rapoport (Microsoft) <[email protected]> -- Sincerely yours, Mike.
