65 	struct address_space *mapping;  in isolate_movable_page()  local
103 	mapping = page_mapping(page);  in isolate_movable_page()
104 	VM_BUG_ON_PAGE(!mapping, page);  in isolate_movable_page()
106 	if (!mapping->a_ops->isolate_page(page, mode))  in isolate_movable_page()
127 	struct address_space *mapping;  in putback_movable_page()  local
133 	mapping = page_mapping(page);  in putback_movable_page()
134 	mapping->a_ops->putback_page(page);  in putback_movable_page()
359 static int expected_page_refs(struct address_space *mapping, struct page *page)  in expected_page_refs()  argument
368 	if (mapping)  in expected_page_refs()
382 int migrate_page_move_mapping(struct address_space *mapping,  in migrate_page_move_mapping()  argument
385 	XA_STATE(xas, &mapping->i_pages, page_index(page));  in migrate_page_move_mapping()
388 	int expected_count = expected_page_refs(mapping, page) + extra_count;  in migrate_page_move_mapping()
391 	if (!mapping) {  in migrate_page_move_mapping()
398 		newpage->mapping = page->mapping;  in migrate_page_move_mapping()
424 	newpage->mapping = page->mapping;  in migrate_page_move_mapping()
487 		if (dirty && mapping_can_writeback(mapping)) {  in migrate_page_move_mapping()
504 int migrate_huge_page_move_mapping(struct address_space *mapping,  in migrate_huge_page_move_mapping()  argument
507 	XA_STATE(xas, &mapping->i_pages, page_index(page));  in migrate_huge_page_move_mapping()
523 	newpage->mapping = page->mapping;  in migrate_huge_page_move_mapping()
681 int migrate_page(struct address_space *mapping,  in migrate_page()  argument
689 	rc = migrate_page_move_mapping(mapping, newpage, page, 0);  in migrate_page()
741 static int __buffer_migrate_page(struct address_space *mapping,  in __buffer_migrate_page()  argument
750 		return migrate_page(mapping, newpage, page, mode);  in __buffer_migrate_page()
753 	expected_count = expected_page_refs(mapping, page);  in __buffer_migrate_page()
767 		spin_lock(&mapping->private_lock);  in __buffer_migrate_page()
781 			spin_unlock(&mapping->private_lock);  in __buffer_migrate_page()
788 	rc = migrate_page_move_mapping(mapping, newpage, page, 0);  in __buffer_migrate_page()
809 		spin_unlock(&mapping->private_lock);  in __buffer_migrate_page()
825 int buffer_migrate_page(struct address_space *mapping,  in buffer_migrate_page()  argument
828 	return __buffer_migrate_page(mapping, newpage, page, mode, false);  in buffer_migrate_page()
838 int buffer_migrate_page_norefs(struct address_space *mapping,  in buffer_migrate_page_norefs()  argument
841 	return __buffer_migrate_page(mapping, newpage, page, mode, true);  in buffer_migrate_page_norefs()
848 static int writeout(struct address_space *mapping, struct page *page)  in writeout()  argument
859 	if (!mapping->a_ops->writepage)  in writeout()
877 	rc = mapping->a_ops->writepage(page, &wbc);  in writeout()
889 static int fallback_migrate_page(struct address_space *mapping,  in fallback_migrate_page()  argument
901 		return writeout(mapping, page);  in fallback_migrate_page()
912 	return migrate_page(mapping, newpage, page, mode);  in fallback_migrate_page()
929 	struct address_space *mapping;  in move_to_new_page()  local
936 	mapping = page_mapping(page);  in move_to_new_page()
939 		if (!mapping)  in move_to_new_page()
940 			rc = migrate_page(mapping, newpage, page, mode);  in move_to_new_page()
941 		else if (mapping->a_ops->migratepage)  in move_to_new_page()
949 			rc = mapping->a_ops->migratepage(mapping, newpage,  in move_to_new_page()
952 			rc = fallback_migrate_page(mapping, newpage,  in move_to_new_page()
966 		rc = mapping->a_ops->migratepage(mapping, newpage,  in move_to_new_page()
993 			page->mapping = NULL;  in move_to_new_page()
1102 	if (!page->mapping) {  in __unmap_and_move()
1269 	struct address_space *mapping = NULL;  in unmap_and_move_huge_page()  local
1327 			mapping = hugetlb_page_mapping_lock_write(hpage);  in unmap_and_move_huge_page()
1328 			if (unlikely(!mapping))  in unmap_and_move_huge_page()
1339 			i_mmap_unlock_write(mapping);  in unmap_and_move_huge_page()
2150 	new_page->mapping = page->mapping;  in migrate_misplaced_transhuge_page()
2402 		if (!page || !page->mapping || PageTransCompound(page)) {  in migrate_vma_collect_pmd()
2990 		struct address_space *mapping;  in migrate_vma_pages()  local
3017 		mapping = page_mapping(page);  in migrate_vma_pages()
3025 				if (mapping) {  in migrate_vma_pages()
3039 		r = migrate_page(mapping, newpage, page, MIGRATE_SYNC_NO_COPY);  in migrate_vma_pages()