* multiple hb threads are watching multiple regions. A node is live
* whenever any of the threads sees activity from the node in its region.
*/
-static spinlock_t o2hb_live_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(o2hb_live_lock);
static struct list_head o2hb_live_slots[O2NM_MAX_NODES];
static unsigned long o2hb_live_node_bitmap[BITS_TO_LONGS(O2NM_MAX_NODES)];
static LIST_HEAD(o2hb_node_events);