diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
index 8505c92..f32b1fb 100644
--- a/mm/process_vm_access.c
+++ b/mm/process_vm_access.c
@@ -46,11 +46,7 @@
 			copy = len;
 
 		if (vm_write) {
-			if (copy > iov_iter_count(iter))
-				copy = iov_iter_count(iter);
-			copied = iov_iter_copy_from_user(page, iter,
-					offset, copy);
-			iov_iter_advance(iter, copied);
+			copied = copy_page_from_iter(page, offset, copy, iter);
 			set_page_dirty_lock(page);
 		} else {
 			copied = copy_page_to_iter(page, offset, copy, iter);