#ifdef CONFIG_TRANSPARENT_HUGEPAGE
... /* * PageTransTail returns true for both transparent huge pages * and hugetlbfs pages, so it should only be called when it's known * that hugetlbfs pages aren't involved. */ static inline int PageTransTail(struct page *page) { return PageTail(page); }
#else ... static inline int PageTransTail(struct page *page) { return 0; } #endif