is_free_buddy_page
bool is_free_buddy_page(const struct page *page);
!is_free_buddy_page(p))
return PageLRU(page) || is_free_buddy_page(page);
} else if (!PageHuge(p) && !is_free_buddy_page(p)) {
if (is_free_buddy_page(p)) {
EXPORT_SYMBOL(is_free_buddy_page);
else if (page_count(page) == 0 && is_free_buddy_page(page))