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>

kernel/fork.c

diff --git a/kernel/fork.c b/kernel/fork.c
index 0276c30..7517a53 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1013,7 +1013,7 @@
 {
 	raw_spin_lock_init(&p->pi_lock);
 #ifdef CONFIG_RT_MUTEXES
-	plist_head_init_raw(&p->pi_waiters, &p->pi_lock);
+	plist_head_init(&p->pi_waiters);
 	p->pi_blocked_on = NULL;
 #endif
 }

kernel/futex.c

diff --git a/kernel/futex.c b/kernel/futex.c
index fe28dc2..3fbc76c 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -2697,7 +2697,7 @@
 		futex_cmpxchg_enabled = 1;
 
 	for (i = 0; i < ARRAY_SIZE(futex_queues); i++) {
-		plist_head_init(&futex_queues[i].chain, &futex_queues[i].lock);
+		plist_head_init(&futex_queues[i].chain);
 		spin_lock_init(&futex_queues[i].lock);
 	}
 

kernel/pm_qos_params.c

diff --git a/kernel/pm_qos_params.c b/kernel/pm_qos_params.c
index 6824ca7..37f05d0 100644
--- a/kernel/pm_qos_params.c
+++ b/kernel/pm_qos_params.c
@@ -74,7 +74,7 @@
 static struct pm_qos_object null_pm_qos;
 static BLOCKING_NOTIFIER_HEAD(cpu_dma_lat_notifier);
 static struct pm_qos_object cpu_dma_pm_qos = {
-	.requests = PLIST_HEAD_INIT(cpu_dma_pm_qos.requests, pm_qos_lock),
+	.requests = PLIST_HEAD_INIT(cpu_dma_pm_qos.requests),
 	.notifiers = &cpu_dma_lat_notifier,
 	.name = "cpu_dma_latency",
 	.target_value = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE,
@@ -84,7 +84,7 @@
 
 static BLOCKING_NOTIFIER_HEAD(network_lat_notifier);
 static struct pm_qos_object network_lat_pm_qos = {
-	.requests = PLIST_HEAD_INIT(network_lat_pm_qos.requests, pm_qos_lock),
+	.requests = PLIST_HEAD_INIT(network_lat_pm_qos.requests),
 	.notifiers = &network_lat_notifier,
 	.name = "network_latency",
 	.target_value = PM_QOS_NETWORK_LAT_DEFAULT_VALUE,
@@ -95,7 +95,7 @@
 
 static BLOCKING_NOTIFIER_HEAD(network_throughput_notifier);
 static struct pm_qos_object network_throughput_pm_qos = {
-	.requests = PLIST_HEAD_INIT(network_throughput_pm_qos.requests, pm_qos_lock),
+	.requests = PLIST_HEAD_INIT(network_throughput_pm_qos.requests),
 	.notifiers = &network_throughput_notifier,
 	.name = "network_throughput",
 	.target_value = PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE,

kernel/rtmutex.c

diff --git a/kernel/rtmutex.c b/kernel/rtmutex.c
index ab44911..255e166 100644
--- a/kernel/rtmutex.c
+++ b/kernel/rtmutex.c
@@ -890,7 +890,7 @@
 {
 	lock->owner = NULL;
 	raw_spin_lock_init(&lock->wait_lock);
-	plist_head_init_raw(&lock->wait_list, &lock->wait_lock);
+	plist_head_init(&lock->wait_list);
 
 	debug_rt_mutex_init(lock, name);
 }

kernel/sched.c

diff --git a/kernel/sched.c b/kernel/sched.c
index 3f2e502..71bc127 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -7781,7 +7781,7 @@
 #ifdef CONFIG_SMP
 	rt_rq->rt_nr_migratory = 0;
 	rt_rq->overloaded = 0;
-	plist_head_init_raw(&rt_rq->pushable_tasks, &rq->lock);
+	plist_head_init(&rt_rq->pushable_tasks);
 #endif
 
 	rt_rq->rt_time = 0;
@@ -7986,7 +7986,7 @@
 #endif
 
 #ifdef CONFIG_RT_MUTEXES
-	plist_head_init_raw(&init_task.pi_waiters, &init_task.pi_lock);
+	plist_head_init(&init_task.pi_waiters);
 #endif
 
 	/*