1652 		struct page *page_tail = page + i;  in __split_huge_page_refcount()  local
1655 		BUG_ON(page_mapcount(page_tail) < 0);  in __split_huge_page_refcount()
1656 		tail_count += page_mapcount(page_tail);  in __split_huge_page_refcount()
1659 		BUG_ON(atomic_read(&page_tail->_count) != 0);  in __split_huge_page_refcount()
1673 		atomic_add(page_mapcount(page) + page_mapcount(page_tail) + 1,  in __split_huge_page_refcount()
1674 			   &page_tail->_count);  in __split_huge_page_refcount()
1679 		page_tail->flags &= ~PAGE_FLAGS_CHECK_AT_PREP;  in __split_huge_page_refcount()
1680 		page_tail->flags |= (page->flags &  in __split_huge_page_refcount()
1687 		page_tail->flags |= (1L << PG_dirty);  in __split_huge_page_refcount()
1706 		page_tail->_mapcount = page->_mapcount;  in __split_huge_page_refcount()
1708 		BUG_ON(page_tail->mapping);  in __split_huge_page_refcount()
1709 		page_tail->mapping = page->mapping;  in __split_huge_page_refcount()
1711 		page_tail->index = page->index + i;  in __split_huge_page_refcount()
1712 		page_cpupid_xchg_last(page_tail, page_cpupid_last(page));  in __split_huge_page_refcount()
1714 		BUG_ON(!PageAnon(page_tail));  in __split_huge_page_refcount()
1715 		BUG_ON(!PageUptodate(page_tail));  in __split_huge_page_refcount()
1716 		BUG_ON(!PageDirty(page_tail));  in __split_huge_page_refcount()
1717 		BUG_ON(!PageSwapBacked(page_tail));  in __split_huge_page_refcount()
1719 		lru_add_page_tail(page, page_tail, lruvec, list);  in __split_huge_page_refcount()
1731 		struct page *page_tail = page + i;  in __split_huge_page_refcount()  local
1732 		BUG_ON(page_count(page_tail) <= 0);  in __split_huge_page_refcount()
1740 		put_page(page_tail);  in __split_huge_page_refcount()