plist: Remove the need to supply locks to plist heads

This was legacy code brought over from the RT tree and
is no longer necessary.

Signed-off-by: Dima Zavin <dima@android.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Daniel Walker <dwalker@codeaurora.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Link: http://lkml.kernel.org/r/1310084879-10351-2-git-send-email-dima@android.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/lib/plist.c b/lib/plist.c
index 0ae7e64..a0a4da4 100644
--- a/lib/plist.c
+++ b/lib/plist.c
@@ -56,11 +56,6 @@
 
 static void plist_check_head(struct plist_head *head)
 {
-	WARN_ON(head != &test_head && !head->rawlock && !head->spinlock);
-	if (head->rawlock)
-		WARN_ON_SMP(!raw_spin_is_locked(head->rawlock));
-	if (head->spinlock)
-		WARN_ON_SMP(!spin_is_locked(head->spinlock));
 	if (!plist_head_empty(head))
 		plist_check_list(&plist_first(head)->prio_list);
 	plist_check_list(&head->node_list);
@@ -180,7 +175,7 @@
 	unsigned int r = local_clock();
 
 	printk(KERN_INFO "start plist test\n");
-	plist_head_init(&test_head, NULL);
+	plist_head_init(&test_head);
 	for (i = 0; i < ARRAY_SIZE(test_node); i++)
 		plist_node_init(test_node + i, 0);