Hello, On Thu, Jun 15, 2017 at 11:17:13AM -0700, Shaohua Li wrote: > +/* represent a kernfs node */ > +struct kernfs_node_id { > + u32 ino; > + u32 generation; > +} __attribute__((packed)); Can we just make it a u64? kernfs cares about the details but for everyone else it can just be a unique 64bit id. Thanks. -- tejun