block: convert iomap ops to ->iomap_next()

Convert block iomap_ops to the new ->iomap_next() callback. The callback is
generated with the DEFINE_IOMAP_ITER_NEXT() macro, which wraps the
iomap_iter_next() helper to finish the previous mapping if needed and
produce the next one. No functional changes are intended.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Link: https://patch.msgid.link/20260729192737.3190206-15-joannelkoong@gmail.com
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>

diff --git a/block/fops.c b/block/fops.c
index 15783a6180dec162b434f27d653fd9c611eecc6d..4cff76e9eb71026d3fe7e626abe666768f374751 100644 (file)
--- a/block/fops.c
+++ b/block/fops.c
@@ -453,8 +453,10 @@ static int blkdev_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
        return 0;
 }
 
+static DEFINE_IOMAP_ITER_NEXT(blkdev_iomap_next, blkdev_iomap_begin);
+
 static const struct iomap_ops blkdev_iomap_ops = {
-       .iomap_begin            = blkdev_iomap_begin,
+       .iomap_next             = blkdev_iomap_next,
 };
 
 #ifdef CONFIG_BUFFER_HEAD