Add a simple cleanup helper so we can cleanup struct path easily.
No need for any extra machinery. Avoid DEFINE_FREE() as it causes a
local copy of struct path to be used. Just rely on path_put() directly
called from a cleanup helper.
Signed-off-by: Christian Brauner <brauner@xxxxxxxxxx>
---
include/linux/path.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/include/linux/path.h b/include/linux/path.h
index 475225a03d0d..ca073e70decd 100644
--- a/include/linux/path.h
+++ b/include/linux/path.h
@@ -24,4 +24,13 @@ static inline void path_put_init(struct path *path)
*path = (struct path) { };
}
+/*
+ * Cleanup macro for use with __free(path_put). Avoids dereference and
+ * copying @path unlike DEFINE_FREE(). path_put() will handle the empty
+ * path correctly just ensure @path is initialized:
+ *
+ * struct path path __free(path_put) = {};
+ */
+#define __free_path_put path_put
+
#endif /* _LINUX_PATH_H */
--
2.43.0
