680 	int rc;  in migrate_page()  local
684 	rc = migrate_page_move_mapping(mapping, newpage, page, 0);  in migrate_page()
686 	if (rc != MIGRATEPAGE_SUCCESS)  in migrate_page()
687 		return rc;  in migrate_page()
741 	int rc;  in __buffer_migrate_page()  local
773 				rc = -EAGAIN;  in __buffer_migrate_page()
783 	rc = migrate_page_move_mapping(mapping, newpage, page, 0);  in __buffer_migrate_page()
784 	if (rc != MIGRATEPAGE_SUCCESS)  in __buffer_migrate_page()
807 	rc = MIGRATEPAGE_SUCCESS;  in __buffer_migrate_page()
818 	return rc;  in __buffer_migrate_page()
858 	int rc;  in writeout()  local
878 	rc = mapping->a_ops->writepage(page, &wbc);  in writeout()
880 	if (rc != AOP_WRITEPAGE_ACTIVATE)  in writeout()
884 	return (rc < 0) ? -EIO : -EAGAIN;  in writeout()
931 	int rc = -EAGAIN;  in move_to_new_page()  local
941 			rc = migrate_page(mapping, newpage, page, mode);  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()
962 			rc = MIGRATEPAGE_SUCCESS;  in move_to_new_page()
967 		rc = mapping->a_ops->migratepage(mapping, newpage,  in move_to_new_page()
969 		WARN_ON_ONCE(rc == MIGRATEPAGE_SUCCESS &&  in move_to_new_page()
977 	if (rc == MIGRATEPAGE_SUCCESS) {  in move_to_new_page()
1001 	return rc;  in move_to_new_page()
1007 	int rc = -EAGAIN;  in __unmap_and_move()  local
1047 			rc = -EBUSY;  in __unmap_and_move()
1084 		rc = move_to_new_page(newpage, page, mode);  in __unmap_and_move()
1116 		rc = move_to_new_page(newpage, page, mode);  in __unmap_and_move()
1120 			rc == MIGRATEPAGE_SUCCESS ? newpage : page, false);  in __unmap_and_move()
1139 	if (rc == MIGRATEPAGE_SUCCESS) {  in __unmap_and_move()
1146 	return rc;  in __unmap_and_move()
1170 	int rc = MIGRATEPAGE_SUCCESS;  in unmap_and_move()  local
1197 	rc = __unmap_and_move(page, newpage, force, mode);  in unmap_and_move()
1198 	if (rc == MIGRATEPAGE_SUCCESS)  in unmap_and_move()
1202 	if (rc != -EAGAIN) {  in unmap_and_move()
1226 	if (rc == MIGRATEPAGE_SUCCESS) {  in unmap_and_move()
1238 		if (rc != -EAGAIN) {  in unmap_and_move()
1259 	return rc;  in unmap_and_move()
1285 	int rc = -EAGAIN;  in unmap_and_move_huge_page()  local
1325 		rc = -EBUSY;  in unmap_and_move_huge_page()
1342 		rc = move_to_new_page(new_hpage, hpage, mode);  in unmap_and_move_huge_page()
1346 			rc == MIGRATEPAGE_SUCCESS ? new_hpage : hpage, false);  in unmap_and_move_huge_page()
1354 	if (rc == MIGRATEPAGE_SUCCESS) {  in unmap_and_move_huge_page()
1362 	if (rc != -EAGAIN)  in unmap_and_move_huge_page()
1375 	return rc;  in unmap_and_move_huge_page()
1410 	int rc;  in migrate_pages()  local
1423 				rc = unmap_and_move_huge_page(get_new_page,  in migrate_pages()
1427 				rc = unmap_and_move(get_new_page, put_new_page,  in migrate_pages()
1431 			switch(rc) {  in migrate_pages()
1446 					rc = split_huge_page_to_list(page, from);  in migrate_pages()
1448 					if (!rc) {  in migrate_pages()
1474 	rc = nr_failed;  in migrate_pages()
1485 	return rc;  in migrate_pages()