Convert zonefs 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 <joannelkoong@gmail.com>
---
 fs/zonefs/file.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/fs/zonefs/file.c b/fs/zonefs/file.c
index 5ada33f70bb4..a29a8756d660 100644
--- a/fs/zonefs/file.c
+++ b/fs/zonefs/file.c
@@ -57,8 +57,15 @@ static int zonefs_read_iomap_begin(struct inode *inode, loff_t offset,
 	return 0;
 }
 
+static int zonefs_read_iomap_next(const struct iomap_iter *iter,
+				  struct iomap *iomap, struct iomap *srcmap)
+{
+	return iomap_process(iter, iomap, srcmap, zonefs_read_iomap_begin,
+			     NULL);
+}
+
 static const struct iomap_ops zonefs_read_iomap_ops = {
-	.iomap_begin	= zonefs_read_iomap_begin,
+	.iomap_next	= zonefs_read_iomap_next,
 };
 
 static int zonefs_write_iomap_begin(struct inode *inode, loff_t offset,
@@ -106,8 +113,15 @@ static int zonefs_write_iomap_begin(struct inode *inode, loff_t offset,
 	return 0;
 }
 
+static int zonefs_write_iomap_next(const struct iomap_iter *iter,
+				   struct iomap *iomap, struct iomap *srcmap)
+{
+	return iomap_process(iter, iomap, srcmap, zonefs_write_iomap_begin,
+			     NULL);
+}
+
 static const struct iomap_ops zonefs_write_iomap_ops = {
-	.iomap_begin	= zonefs_write_iomap_begin,
+	.iomap_next	= zonefs_write_iomap_next,
 };
 
 static int zonefs_read_folio(struct file *unused, struct folio *folio)
-- 
2.52.0