483 	return (struct list_head *)&page[2].mapping;  in page_deferred_list()
1429 		if (PageDoubleMap(page) || !page->mapping)  in follow_trans_huge_pmd()
1434 		if (page->mapping && !PageDoubleMap(page))  in follow_trans_huge_pmd()
2339 	VM_BUG_ON_PAGE(tail > 2 && page_tail->mapping != TAIL_MAPPING,  in __split_huge_page_tail()
2341 	page_tail->mapping = head->mapping;  in __split_huge_page_tail()
2388 				shmem_uncharge(head->mapping->host, 1);  in __split_huge_page()
2407 		spin_unlock(&head->mapping->tree_lock);  in __split_huge_page()
2551 	struct address_space *mapping = NULL;  in split_huge_page_to_list()  local
2579 		mapping = NULL;  in split_huge_page_to_list()
2582 		mapping = head->mapping;  in split_huge_page_to_list()
2585 		if (!mapping) {  in split_huge_page_to_list()
2591 		i_mmap_lock_read(mapping);  in split_huge_page_to_list()
2600 		end = DIV_ROUND_UP(i_size_read(mapping->host), PAGE_SIZE);  in split_huge_page_to_list()
2623 	if (mapping) {  in split_huge_page_to_list()
2626 		spin_lock(&mapping->tree_lock);  in split_huge_page_to_list()
2627 		pslot = radix_tree_lookup_slot(&mapping->page_tree,  in split_huge_page_to_list()
2634 					&mapping->tree_lock) != head)  in split_huge_page_to_list()
2647 		if (mapping)  in split_huge_page_to_list()
2667 fail:		if (mapping)  in split_huge_page_to_list()
2668 			spin_unlock(&mapping->tree_lock);  in split_huge_page_to_list()
2679 	if (mapping)  in split_huge_page_to_list()
2680 		i_mmap_unlock_read(mapping);  in split_huge_page_to_list()
2735 		page = list_entry((void *)pos, struct page, mapping);  in deferred_split_scan()
2750 		page = list_entry((void *)pos, struct page, mapping);  in deferred_split_scan()