diff --git a/fs/iomap/fiemap.c b/fs/iomap/fiemap.c
index 0a807bbb2b4a..449705575acf 100644
--- a/fs/iomap/fiemap.c
+++ b/fs/iomap/fiemap.c
@@ -66,7 +66,7 @@ iomap_fiemap_actor(struct inode *inode, loff_t pos, loff_t length, void *data,
 }
 
 int iomap_fiemap(struct inode *inode, struct fiemap_extent_info *fi,
-		loff_t start, loff_t len, const struct iomap_ops *ops)
+		u64 start, u64 len, const struct iomap_ops *ops)
 {
 	struct fiemap_ctx ctx;
 	loff_t ret;
diff --git a/include/linux/iomap.h b/include/linux/iomap.h
index 8b09463dae0d..63db02528b70 100644
--- a/include/linux/iomap.h
+++ b/include/linux/iomap.h
@@ -178,7 +178,7 @@ int iomap_truncate_page(struct inode *inode, loff_t pos, bool *did_zero,
 vm_fault_t iomap_page_mkwrite(struct vm_fault *vmf,
 			const struct iomap_ops *ops);
 int iomap_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
-		loff_t start, loff_t len, const struct iomap_ops *ops);
+		u64 start, u64 len, const struct iomap_ops *ops);
 loff_t iomap_seek_hole(struct inode *inode, loff_t offset,
 		const struct iomap_ops *ops);
 loff_t iomap_seek_data(struct inode *inode, loff_t offset,