I wonder if this should go with the rest of the buffered I/O code into buffered-io.c? Yes, it would need an ifdef, but it is closely related to it in how we use the page private information. > diff --git a/fs/iomap/migrate.c b/fs/iomap/migrate.c > new file mode 100644 > index 000000000000..d8116d35f819 > --- /dev/null > +++ b/fs/iomap/migrate.c > @@ -0,0 +1,39 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Copyright (C) 2010 Red Hat, Inc. > + * Copyright (c) 2016-2018 Christoph Hellwig. > + */ Bit if you don't want to move it, this is all new code from me from 2018.
