On Thu, Feb 14, 2019 at 03:00:53PM -0800, Bart Van Assche wrote:
> +/* hash_entry is used to keep track of dynamically allocated keys. */
> struct lock_class_key {
> + struct hlist_node hash_entry;
> struct lockdep_subclass_key subkeys[MAX_LOCKDEP_SUBCLASSES];
> };
I think we can make that:
struct lock_class_key {
union {
struct hlist_node hash_entry;
struct lockdep_subclass_key subkeys[MAX_LOCKDEP_SUBCLASSES];
};
};
I've added a patch to that effect at the end. IIRC we never actually
store anything in the subkeys, we just use the address.
