On Sun, Jan 02, 2022 at 04:19:41PM +0000, Matthew Wilcox wrote:
> +++ b/include/linux/uio.h
> @@ -150,7 +150,7 @@ size_t _copy_from_iter_nocache(void *addr, size_t bytes, struct iov_iter *i);
> static inline size_t copy_folio_to_iter(struct folio *folio, size_t offset,
> size_t bytes, struct iov_iter *i)
> {
> - return copy_page_to_iter((struct page *)folio, offset, bytes, i);
> + return copy_page_to_iter(&folio->page, offset, bytes, i);
> }
Mmmpf. I should have tested this more thoroughly. Some files currently
include uio.h without including mm_types.h. So this on top fixes
the build:
+++ b/include/linux/uio.h
@@ -7,10 +7,10 @@
#include <linux/kernel.h>
#include <linux/thread_info.h>
+#include <linux/mm_types.h>
#include <uapi/linux/uio.h>
struct page;
-struct folio;
struct pipe_inode_info;
struct kvec {
