87 	struct address_space *mapping;  in isolate_movable_page()  local
125 	mapping = page_mapping(page);  in isolate_movable_page()
126 	VM_BUG_ON_PAGE(!mapping, page);  in isolate_movable_page()
128 	if (!mapping->a_ops->isolate_page(page, mode))  in isolate_movable_page()
149 	struct address_space *mapping;  in putback_movable_page()  local
155 	mapping = page_mapping(page);  in putback_movable_page()
156 	mapping->a_ops->putback_page(page);  in putback_movable_page()
374 static int expected_page_refs(struct address_space *mapping, struct page *page)  in expected_page_refs()  argument
383 	if (mapping)  in expected_page_refs()
397 int migrate_page_move_mapping(struct address_space *mapping,  in migrate_page_move_mapping()  argument
400 	XA_STATE(xas, &mapping->i_pages, page_index(page));  in migrate_page_move_mapping()
403 	int expected_count = expected_page_refs(mapping, page) + extra_count;  in migrate_page_move_mapping()
405 	if (!mapping) {  in migrate_page_move_mapping()
412 		newpage->mapping = page->mapping;  in migrate_page_move_mapping()
438 	newpage->mapping = page->mapping;  in migrate_page_move_mapping()
494 		if (dirty && mapping_cap_account_dirty(mapping)) {  in migrate_page_move_mapping()
511 int migrate_huge_page_move_mapping(struct address_space *mapping,  in migrate_huge_page_move_mapping()  argument
514 	XA_STATE(xas, &mapping->i_pages, page_index(page));  in migrate_huge_page_move_mapping()
530 	newpage->mapping = page->mapping;  in migrate_huge_page_move_mapping()
676 int migrate_page(struct address_space *mapping,  in migrate_page()  argument
684 	rc = migrate_page_move_mapping(mapping, newpage, page, 0);  in migrate_page()
736 static int __buffer_migrate_page(struct address_space *mapping,  in __buffer_migrate_page()  argument
745 		return migrate_page(mapping, newpage, page, mode);  in __buffer_migrate_page()
748 	expected_count = expected_page_refs(mapping, page);  in __buffer_migrate_page()
762 		spin_lock(&mapping->private_lock);  in __buffer_migrate_page()
776 			spin_unlock(&mapping->private_lock);  in __buffer_migrate_page()
783 	rc = migrate_page_move_mapping(mapping, newpage, page, 0);  in __buffer_migrate_page()
810 		spin_unlock(&mapping->private_lock);  in __buffer_migrate_page()
826 int buffer_migrate_page(struct address_space *mapping,  in buffer_migrate_page()  argument
829 	return __buffer_migrate_page(mapping, newpage, page, mode, false);  in buffer_migrate_page()
839 int buffer_migrate_page_norefs(struct address_space *mapping,  in buffer_migrate_page_norefs()  argument
842 	return __buffer_migrate_page(mapping, newpage, page, mode, true);  in buffer_migrate_page_norefs()
849 static int writeout(struct address_space *mapping, struct page *page)  in writeout()  argument
860 	if (!mapping->a_ops->writepage)  in writeout()
878 	rc = mapping->a_ops->writepage(page, &wbc);  in writeout()
890 static int fallback_migrate_page(struct address_space *mapping,  in fallback_migrate_page()  argument
902 		return writeout(mapping, page);  in fallback_migrate_page()
913 	return migrate_page(mapping, newpage, page, mode);  in fallback_migrate_page()
930 	struct address_space *mapping;  in move_to_new_page()  local
937 	mapping = page_mapping(page);  in move_to_new_page()
940 		if (!mapping)  in move_to_new_page()
941 			rc = migrate_page(mapping, newpage, page, mode);  in move_to_new_page()
942 		else if (mapping->a_ops->migratepage)  in move_to_new_page()
950 			rc = mapping->a_ops->migratepage(mapping, newpage,  in move_to_new_page()
953 			rc = fallback_migrate_page(mapping, newpage,  in move_to_new_page()
967 		rc = mapping->a_ops->migratepage(mapping, newpage,  in move_to_new_page()
994 			page->mapping = NULL;  in move_to_new_page()
1100 	if (!page->mapping) {  in __unmap_and_move()
2035 	new_page->mapping = page->mapping;  in migrate_misplaced_transhuge_page()
2269 		if (!page || !page->mapping || PageTransCompound(page)) {  in migrate_vma_collect_pmd()
2832 		struct address_space *mapping;  in migrate_vma_pages()  local
2860 		mapping = page_mapping(page);  in migrate_vma_pages()
2868 				if (mapping) {  in migrate_vma_pages()
2882 		r = migrate_page(mapping, newpage, page, MIGRATE_SYNC_NO_COPY);  in migrate_vma_pages()