[PATCH v2 03/18] btrfs: convert iomap ops to ->iomap_next()

Convert btrfs iomap_ops to the new ->iomap_next() callback. This uses the
iomap_process() helper, which finishes the previous mapping if needed
and produces the next one. No functional changes are intended.

Signed-off-by: Joanne Koong <[email protected]>
---
 fs/btrfs/direct-io.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/direct-io.c b/fs/btrfs/direct-io.c
index 460326d34143..46dd72982fba 100644
--- a/fs/btrfs/direct-io.c
+++ b/fs/btrfs/direct-io.c
@@ -798,9 +798,15 @@ static void btrfs_dio_submit_io(const struct iomap_iter *iter, struct bio *bio,
 	btrfs_submit_bbio(bbio, 0);
 }
 
+static int btrfs_dio_iomap_next(const struct iomap_iter *iter,
+				struct iomap *iomap, struct iomap *srcmap)
+{
+	return iomap_process(iter, iomap, srcmap, btrfs_dio_iomap_begin,
+			     btrfs_dio_iomap_end);
+}
+
 static const struct iomap_ops btrfs_dio_iomap_ops = {
-	.iomap_begin            = btrfs_dio_iomap_begin,
-	.iomap_end              = btrfs_dio_iomap_end,
+	.iomap_next             = btrfs_dio_iomap_next,
 };
 
 static const struct iomap_dio_ops btrfs_dio_ops = {
-- 
2.52.0