int lu_buf_check_and_grow(struct lu_buf *buf, size_t len);
struct lu_buf *lu_buf_check_and_alloc(struct lu_buf *buf, size_t len);
+extern __u32 lu_context_tags_default;
+extern __u32 lu_session_tags_default;
+
/** @} lu */
#endif /* __LUSTRE_LU_OBJECT_H */