iomap: Don't create iomap_page objects in iomap_page_mkwrite_actor

Now that we create those objects in iomap_writepage_map when needed,
there's no need to pre-create them in iomap_page_mkwrite_actor anymore.

Signed-off-by: Andreas Gruenbacher <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Matthew Wilcox (Oracle) <[email protected]>
Reviewed-by: Darrick J. Wong <[email protected]>
Signed-off-by: Darrick J. Wong <[email protected]>

fs/iomap/buffered-io.c

@@ -969,7 +969,6 @@ iomap_page_mkwrite_actor(struct inode *inode, loff_t pos, loff_t length,
 		block_commit_write(page, 0, length);
 	} else {
 		WARN_ON_ONCE(!PageUptodate(page));
-		iomap_page_create(inode, page);
 		set_page_dirty(page);
 	}