rtmutex: Remove unused argument from rt_mutex_proxy_unlock()

From: Thomas Gleixner <tglx@linutronix.de>

[ Upstream commit 2156ac1934166d6deb6cd0f6ffc4c1076ec63697 ]
Nothing uses the argument. Remove it as preparation to use
pi_state_update_owner().

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/kernel/futex.c b/kernel/futex.c
index 1390ffa874a6baf983429756aa82e5e1df70d5d6..bf40921ef1200aba80efd53521e77c110282d1ed 100644 (file)
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -878,7 +878,7 @@ static void free_pi_state(struct futex_pi_state *pi_state)
                list_del_init(&pi_state->list);
                raw_spin_unlock_irq(&pi_state->owner->pi_lock);
 
-               rt_mutex_proxy_unlock(&pi_state->pi_mutex, pi_state->owner);
+               rt_mutex_proxy_unlock(&pi_state->pi_mutex);
        }
 
        if (current->pi_state_cache)

diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index 45d3c9aec8533c57d284846e0e9b607fbd10d452..1c0cb5c3c6ad6fe3773a5b2eb48b2058caac175e 100644 (file)
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -1662,8 +1662,7 @@ void rt_mutex_init_proxy_locked(struct rt_mutex *lock,
  * No locking. Caller has to do serializing itself
  * Special API call for PI-futex support
  */
-void rt_mutex_proxy_unlock(struct rt_mutex *lock,
-                          struct task_struct *proxy_owner)
+void rt_mutex_proxy_unlock(struct rt_mutex *lock)
 {
        debug_rt_mutex_proxy_unlock(lock);
        rt_mutex_set_owner(lock, NULL);

diff --git a/kernel/locking/rtmutex_common.h b/kernel/locking/rtmutex_common.h
index ea7310b9ce83a562cd42921f41ca42c492320064..4584db96265d429da8175a07e1f408da7d75a538 100644 (file)
--- a/kernel/locking/rtmutex_common.h
+++ b/kernel/locking/rtmutex_common.h
@@ -101,8 +101,7 @@ enum rtmutex_chainwalk {
 extern struct task_struct *rt_mutex_next_owner(struct rt_mutex *lock);
 extern void rt_mutex_init_proxy_locked(struct rt_mutex *lock,
                                       struct task_struct *proxy_owner);
-extern void rt_mutex_proxy_unlock(struct rt_mutex *lock,
-                                 struct task_struct *proxy_owner);
+extern void rt_mutex_proxy_unlock(struct rt_mutex *lock);
 extern int rt_mutex_start_proxy_lock(struct rt_mutex *lock,
                                     struct rt_mutex_waiter *waiter,
                                     struct task_struct *task);