On Mon, Jun 20, 2016 at 01:55:20PM +0900, Byungchul Park wrote:
> +struct cross_lock {
> + unsigned int gen_id;4 byte hole > + struct list_head xlock_entry; > + > + /* > + * Seperated hlock instance. This will be used when > + * building a dependency chain for a crosslock, say, > + * commit. > + */ > + struct held_lock hlock; > + > + int ref; /* reference count */ 4 byte hole > +}; A trivial re-arrangement would shrink this structure by 8 bytes. After which its still at least 64 bytes.
