Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6

[linux-drm-fsl-dcu.git] / kernel / rtmutex.c

diff --git a/kernel/rtmutex.c b/kernel/rtmutex.c
index 4ab17da46fd80de1690744f9022691923942cb70..12879f6c1ec3b9a53069690f0205082ea581565c 100644 (file)
--- a/kernel/rtmutex.c
+++ b/kernel/rtmutex.c
@@ -56,7 +56,7 @@
  * state.
  */
 
-static void
+void
 rt_mutex_set_owner(struct rt_mutex *lock, struct task_struct *owner,
                   unsigned long mask)
 {
@@ -80,29 +80,6 @@ static void fixup_rt_mutex_waiters(struct rt_mutex *lock)
                clear_rt_mutex_waiters(lock);
 }
 
-/*
- * We can speed up the acquire/release, if the architecture
- * supports cmpxchg and if there's no debugging state to be set up
- */
-#if defined(__HAVE_ARCH_CMPXCHG) && !defined(CONFIG_DEBUG_RT_MUTEXES)
-# define rt_mutex_cmpxchg(l,c,n)       (cmpxchg(&l->owner, c, n) == c)
-static inline void mark_rt_mutex_waiters(struct rt_mutex *lock)
-{
-       unsigned long owner, *p = (unsigned long *) &lock->owner;
-
-       do {
-               owner = *p;
-       } while (cmpxchg(p, owner, owner | RT_MUTEX_HAS_WAITERS) != owner);
-}
-#else
-# define rt_mutex_cmpxchg(l,c,n)       (0)
-static inline void mark_rt_mutex_waiters(struct rt_mutex *lock)
-{
-       lock->owner = (struct task_struct *)
-                       ((unsigned long)lock->owner | RT_MUTEX_HAS_WAITERS);
-}
-#endif
-
 /*
  * Calculate task priority from the waiter list priority
  *
@@ -123,7 +100,7 @@ int rt_mutex_getprio(struct task_struct *task)
  *
  * This can be both boosting and unboosting. task->pi_lock must be held.
  */
-static void __rt_mutex_adjust_prio(struct task_struct *task)
+void __rt_mutex_adjust_prio(struct task_struct *task)
 {
        int prio = rt_mutex_getprio(task);
 
@@ -159,11 +136,11 @@ int max_lock_depth = 1024;
  * Decreases task's usage by one - may thus free the task.
  * Returns 0 or -EDEADLK.
  */
-static int rt_mutex_adjust_prio_chain(struct task_struct *task,
-                                     int deadlock_detect,
-                                     struct rt_mutex *orig_lock,
-                                     struct rt_mutex_waiter *orig_waiter,
-                                     struct task_struct *top_task)
+int rt_mutex_adjust_prio_chain(struct task_struct *task,
+                              int deadlock_detect,
+                              struct rt_mutex *orig_lock,
+                              struct rt_mutex_waiter *orig_waiter,
+                              struct task_struct *top_task)
 {
        struct rt_mutex *lock;
        struct rt_mutex_waiter *waiter, *top_waiter = orig_waiter;
@@ -524,8 +501,8 @@ static void wakeup_next_waiter(struct rt_mutex *lock)
  *
  * Must be called with lock->wait_lock held
  */
-static void remove_waiter(struct rt_mutex *lock,
-                         struct rt_mutex_waiter *waiter)
+void remove_waiter(struct rt_mutex *lock,
+                  struct rt_mutex_waiter *waiter)
 {
        int first = (waiter == rt_mutex_top_waiter(lock));
        struct task_struct *owner = rt_mutex_owner(lock);
@@ -625,7 +602,7 @@ rt_mutex_slowlock(struct rt_mutex *lock, int state,
        /* Setup the timer, when timeout != NULL */
        if (unlikely(timeout))
                hrtimer_start(&timeout->timer, timeout->timer.expires,
-                             HRTIMER_ABS);
+                             HRTIMER_MODE_ABS);
 
        for (;;) {
                /* Try to acquire the lock: */