diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index d40e58bd7c16..cea02c9258f1 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -690,6 +690,10 @@ static void fuse_copy_finish(struct fuse_copy_state *cs)
 			flush_dcache_page(cs->pg);
 			set_page_dirty_lock(cs->pg);
 		}
+		/*
+		 * The page could be GUP page(see iov_iter_get_pages in
+		 * fuse_copy_fill) so use put_page to release it.
+		 */
 		put_page(cs->pg);
 	}
 	cs->pg = NULL;