[PATCH v2 14/18] fuse: convert iomap ops to ->iomap_next()

[Joanne Koong <joannelkoong@gmail.com>]

Convert fuse 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/fuse/dax.c       | 10 ++++++++--
 fs/fuse/file.c      |  8 +++++++-
 fs/fuse/virtio_fs.c |  2 +-
 3 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/fs/fuse/dax.c b/fs/fuse/dax.c
index 8b53625ac7ab..e8d8c9f5d728 100644
--- a/fs/fuse/dax.c
+++ b/fs/fuse/dax.c
@@ -653,9 +653,15 @@ static int fuse_iomap_end(struct inode *inode, loff_t pos, loff_t length,
 	return 0;
 }
 
+static int fuse_iomap_next(const struct iomap_iter *iter, struct iomap *iomap,
+			   struct iomap *srcmap)
+{
+	return iomap_process(iter, iomap, srcmap, fuse_iomap_begin,
+			     fuse_iomap_end);
+}
+
 static const struct iomap_ops fuse_iomap_ops = {
-	.iomap_begin = fuse_iomap_begin,
-	.iomap_end = fuse_iomap_end,
+	.iomap_next = fuse_iomap_next,
 };
 
 static void fuse_wait_dax_page(struct inode *inode)
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index e052a0d44dee..5c0d400629cc 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -890,8 +890,14 @@ static int fuse_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 	return 0;
 }
 
+static int fuse_iomap_next(const struct iomap_iter *iter, struct iomap *iomap,
+			   struct iomap *srcmap)
+{
+	return iomap_process(iter, iomap, srcmap, fuse_iomap_begin, NULL);
+}
+
 static const struct iomap_ops fuse_iomap_ops = {
-	.iomap_begin	= fuse_iomap_begin,
+	.iomap_next	= fuse_iomap_next,
 };
 
 struct fuse_fill_read_data {
diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c
index df25d4faca41..84e699f88574 100644
--- a/fs/fuse/virtio_fs.c
+++ b/fs/fuse/virtio_fs.c
@@ -1024,7 +1024,7 @@ static void virtio_fs_cleanup_vqs(struct virtio_device *vdev)
 }
 
 /* Map a window offset to a page frame number.  The window offset will have
- * been produced by .iomap_begin(), which maps a file offset to a window
+ * been produced by .iomap_next(), which maps a file offset to a window
  * offset.
  */
 static long virtio_fs_direct_access(struct dax_device *dax_dev, pgoff_t pgoff,
-- 
2.52.0