85 	struct address_space *mapping;  in isolate_movable_page()  local
123 	mapping = page_mapping(page);  in isolate_movable_page()
124 	VM_BUG_ON_PAGE(!mapping, page);  in isolate_movable_page()
126 	if (!mapping->a_ops->isolate_page(page, mode))  in isolate_movable_page()
147 	struct address_space *mapping;  in putback_movable_page()  local
153 	mapping = page_mapping(page);  in putback_movable_page()
154 	mapping->a_ops->putback_page(page);  in putback_movable_page()
436 int migrate_page_move_mapping(struct address_space *mapping,  in migrate_page_move_mapping()  argument
453 	if (!mapping) {  in migrate_page_move_mapping()
460 		newpage->mapping = page->mapping;  in migrate_page_move_mapping()
470 	spin_lock_irq(&mapping->tree_lock);  in migrate_page_move_mapping()
472 	pslot = radix_tree_lookup_slot(&mapping->page_tree,  in migrate_page_move_mapping()
477 		radix_tree_deref_slot_protected(pslot, &mapping->tree_lock) != page) {  in migrate_page_move_mapping()
478 		spin_unlock_irq(&mapping->tree_lock);  in migrate_page_move_mapping()
483 		spin_unlock_irq(&mapping->tree_lock);  in migrate_page_move_mapping()
497 		spin_unlock_irq(&mapping->tree_lock);  in migrate_page_move_mapping()
506 	newpage->mapping = page->mapping;  in migrate_page_move_mapping()
525 	radix_tree_replace_slot(&mapping->page_tree, pslot, newpage);  in migrate_page_move_mapping()
534 	spin_unlock(&mapping->tree_lock);  in migrate_page_move_mapping()
554 		if (dirty && mapping_cap_account_dirty(mapping)) {  in migrate_page_move_mapping()
571 int migrate_huge_page_move_mapping(struct address_space *mapping,  in migrate_huge_page_move_mapping()  argument
577 	spin_lock_irq(&mapping->tree_lock);  in migrate_huge_page_move_mapping()
579 	pslot = radix_tree_lookup_slot(&mapping->page_tree,  in migrate_huge_page_move_mapping()
584 		radix_tree_deref_slot_protected(pslot, &mapping->tree_lock) != page) {  in migrate_huge_page_move_mapping()
585 		spin_unlock_irq(&mapping->tree_lock);  in migrate_huge_page_move_mapping()
590 		spin_unlock_irq(&mapping->tree_lock);  in migrate_huge_page_move_mapping()
595 	newpage->mapping = page->mapping;  in migrate_huge_page_move_mapping()
599 	radix_tree_replace_slot(&mapping->page_tree, pslot, newpage);  in migrate_huge_page_move_mapping()
603 	spin_unlock_irq(&mapping->tree_lock);  in migrate_huge_page_move_mapping()
741 int migrate_page(struct address_space *mapping,  in migrate_page()  argument
749 	rc = migrate_page_move_mapping(mapping, newpage, page, NULL, mode, 0);  in migrate_page()
768 int buffer_migrate_page(struct address_space *mapping,  in buffer_migrate_page()  argument
775 		return migrate_page(mapping, newpage, page, mode);  in buffer_migrate_page()
779 	rc = migrate_page_move_mapping(mapping, newpage, page, head, mode, 0);  in buffer_migrate_page()
828 static int writeout(struct address_space *mapping, struct page *page)  in writeout()  argument
839 	if (!mapping->a_ops->writepage)  in writeout()
857 	rc = mapping->a_ops->writepage(page, &wbc);  in writeout()
869 static int fallback_migrate_page(struct address_space *mapping,  in fallback_migrate_page()  argument
881 		return writeout(mapping, page);  in fallback_migrate_page()
892 	return migrate_page(mapping, newpage, page, mode);  in fallback_migrate_page()
909 	struct address_space *mapping;  in move_to_new_page()  local
916 	mapping = page_mapping(page);  in move_to_new_page()
919 		if (!mapping)  in move_to_new_page()
920 			rc = migrate_page(mapping, newpage, page, mode);  in move_to_new_page()
921 		else if (mapping->a_ops->migratepage)  in move_to_new_page()
929 			rc = mapping->a_ops->migratepage(mapping, newpage,  in move_to_new_page()
932 			rc = fallback_migrate_page(mapping, newpage,  in move_to_new_page()
946 		rc = mapping->a_ops->migratepage(mapping, newpage,  in move_to_new_page()
973 			page->mapping = NULL;  in move_to_new_page()
1082 	if (!page->mapping) {  in __unmap_and_move()
2064 	new_page->mapping = page->mapping;  in migrate_misplaced_transhuge_page()
2302 		if (!page || !page->mapping || PageTransCompound(page)) {  in migrate_vma_collect_pmd()
2780 		struct address_space *mapping;  in migrate_vma_pages()  local
2805 		mapping = page_mapping(page);  in migrate_vma_pages()
2813 				if (mapping) {  in migrate_vma_pages()
2827 		r = migrate_page(mapping, newpage, page, MIGRATE_SYNC_NO_COPY);  in migrate_vma_pages()