4 files changed, 11 insertions, 3 deletions

diff --git a/include/linux/osq_lock.h b/include/linux/osq_lock.h
index b001682bf7cb..90230d5811c5 100644
--- a/include/linux/osq_lock.h
+++ b/include/linux/osq_lock.h
@@ -16,4 +16,12 @@ struct optimistic_spin_queue {
         atomic_t tail;
 };
 
+/* Init macro and function. */
+#define OSQ_LOCK_UNLOCKED { ATOMIC_INIT(OSQ_UNLOCKED_VAL) }
+
+static inline void osq_lock_init(struct optimistic_spin_queue *lock)
+{
+        atomic_set(&lock->tail, OSQ_UNLOCKED_VAL);
+}
+
 #endif
diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
index 9fdcdd03507d..25cd9aa2f3d7 100644
--- a/include/linux/rwsem.h
+++ b/include/linux/rwsem.h
@@ -69,7 +69,7 @@ static inline int rwsem_is_locked(struct rw_semaphore *sem)
           __RAW_SPIN_LOCK_UNLOCKED(name.wait_lock),     \
           LIST_HEAD_INIT((name).wait_list),             \
           NULL, /* owner */                             \
-          { ATOMIC_INIT(OSQ_UNLOCKED_VAL) } /* osq */   \
+          OSQ_LOCK_UNLOCKED /* osq */                   \
           __RWSEM_DEP_MAP_INIT(name) }
 #else
 #define __RWSEM_INITIALIZER(name)                       \
diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index d9b313906caa..acca2c1a3c5e 100644
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -60,7 +60,7 @@ __mutex_init(struct mutex *lock, const char *name, struct lock_class_key *key)
         INIT_LIST_HEAD(&lock->wait_list);
         mutex_clear_owner(lock);
 #ifdef CONFIG_MUTEX_SPIN_ON_OWNER
-        atomic_set(&lock->osq.tail, OSQ_UNLOCKED_VAL);
+        osq_lock_init(&lock->osq);
 #endif
 
         debug_mutex_init(lock, name, key);
diff --git a/kernel/locking/rwsem-xadd.c b/kernel/locking/rwsem-xadd.c
index b77a6230bbf6..7190592c2645 100644
--- a/kernel/locking/rwsem-xadd.c
+++ b/kernel/locking/rwsem-xadd.c
@@ -84,7 +84,7 @@ void __init_rwsem(struct rw_semaphore *sem, const char *name,
         INIT_LIST_HEAD(&sem->wait_list);
 #ifdef CONFIG_SMP
         sem->owner = NULL;
-        atomic_set(&sem->osq.tail, OSQ_UNLOCKED_VAL);
+        osq_lock_init(&sem->osq);
 #endif
 }