iov_iter: Provide copy_folio_from_iter()

Provide a copy_folio_from_iter() wrapper.

Signed-off-by: David Howells <[e-mail]>
cc: Alexander Viro <[e-mail]>
cc: Christian Brauner <[e-mail]>
cc: Matthew Wilcox <[e-mail]>
cc: [e-mail]
cc: [e-mail]
cc: [e-mail]
Link: https://lore.kernel.org/r/[e-mail]/ # v2
Signed-off-by: Christian Brauner <[e-mail]>

include/linux/uio.h

···
 	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)
 {