fuse: convert iomap ops to ->iomap_next()
Convert fuse iomap_ops to the new ->iomap_next() callback. Each callback is
generated with the DEFINE_IOMAP_ITER_NEXT()/DEFINE_IOMAP_ITER_NEXT_END()
macros, which wrap the iomap_iter_next() helper to finish the previous
mapping if needed and produce the next one. No functional changes are
intended.
Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Link: https://patch.msgid.link/20260729192737.3190206-19-joannelkoong@gmail.com
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>