fs: ocfs: fix spelling mistake "hearbeating" -> "heartbeat"

There are some spelling mistakes in ocfs, fix it.

Link: http://lkml.kernel.org/r/1558964623-106628-1-git-send-email-cg.chen@huawei.com
Signed-off-by: ChenGang <cg.chen@huawei.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/ocfs2/cluster/heartbeat.c

@@ -1184,7 +1184,7 @@ static int o2hb_do_disk_heartbeat(struct o2hb_region *reg)
 	if (atomic_read(&reg->hr_steady_iterations) != 0) {
 		if (atomic_dec_and_test(&reg->hr_unsteady_iterations)) {
 			printk(KERN_NOTICE "o2hb: Unable to stabilize "
-			       "heartbeart on region %s (%s)\n",
+			       "heartbeat on region %s (%s)\n",
 			       config_item_name(&reg->hr_item),
 			       reg->hr_dev_name);
 			atomic_set(&reg->hr_steady_iterations, 0);

fs/ocfs2/cluster/quorum.c

@@ -76,7 +76,7 @@ static void o2quo_fence_self(void)
 	};
 }
 
-/* Indicate that a timeout occurred on a hearbeat region write. The
+/* Indicate that a timeout occurred on a heartbeat region write. The
  * other nodes in the cluster may consider us dead at that time so we
  * want to "fence" ourselves so that we don't scribble on the disk
  * after they think they've recovered us. This can't solve all

fs/ocfs2/cluster/tcp.c

@@ -1762,7 +1762,7 @@ static void o2net_hb_node_up_cb(struct o2nm_node *node, int node_num,
 		(msecs_to_jiffies(o2net_reconnect_delay()) + 1);
 
 	if (node_num != o2nm_this_node()) {
-		/* believe it or not, accept and node hearbeating testing
+		/* believe it or not, accept and node heartbeating testing
 		 * can succeed for this node before we got here.. so
 		 * only use set_nn_state to clear the persistent error
 		 * if that hasn't already happened */

fs/ocfs2/dlm/dlmmaster.c

@@ -2161,7 +2161,7 @@ static void dlm_assert_master_worker(struct dlm_work_item *item, void *data)
  * think that $RECOVERY is currently mastered by a dead node.  If so,
  * we wait a short time to allow that node to get notified by its own
  * heartbeat stack, then check again.  All $RECOVERY lock resources
- * mastered by dead nodes are purged when the hearbeat callback is
+ * mastered by dead nodes are purged when the heartbeat callback is
  * fired, so we can know for sure that it is safe to continue once
  * the node returns a live node or no node.  */
 static int dlm_pre_master_reco_lockres(struct dlm_ctxt *dlm,