iov_iter: Provide copy_folio_from_iter()

Provide a copy_folio_from_iter() wrapper.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Alexander Viro <viro@zeniv.linux.org.uk>
cc: Christian Brauner <christian@brauner.io>
cc: Matthew Wilcox <willy@infradead.org>
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
cc: linux-mm@kvack.org
Link: https://lore.kernel.org/r/20240814203850.2240469-14-dhowells@redhat.com/
Signed-off-by: Christian Brauner <brauner@kernel.org>

diff --git a/include/linux/uio.h b/include/linux/uio.h
index 845d110acadceb6a3147fa48379ce1ae81877f6e..853f9de5aa05ab4dc8127ae21d825946f31d4f7c 100644 (file)
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -189,6 +189,12 @@ static inline size_t copy_folio_to_iter(struct folio *folio, size_t offset,
        return copy_page_to_iter(&folio->page, offset, bytes, i);
 }
 
+static inline size_t copy_folio_from_iter(struct folio *folio, size_t offset,
+                                         size_t bytes, struct iov_iter *i)
+{
+       return copy_page_from_iter(&folio->page, offset, bytes, i);
+}
+
 static inline size_t copy_folio_from_iter_atomic(struct folio *folio,
                size_t offset, size_t bytes, struct iov_iter *i)
 {