atomic_t count;
spinlock_t wait_lock;
struct list_head wait_list;
-#ifdef CONFIG_DEBUG_MUTEXES
+#if defined(CONFIG_DEBUG_MUTEXES) || defined(CONFIG_SMP)
struct thread_info *owner;
+#endif
+#ifdef CONFIG_DEBUG_MUTEXES
const char *name;
void *magic;
#endif
struct list_head list;
struct task_struct *task;
#ifdef CONFIG_DEBUG_MUTEXES
- struct mutex *lock;
void *magic;
#endif
};
*
* Returns 1 if the mutex is locked, 0 if unlocked.
*/
-static inline int fastcall mutex_is_locked(struct mutex *lock)
+static inline int mutex_is_locked(struct mutex *lock)
{
return atomic_read(&lock->count) != 1;
}
#define mutex_lock_interruptible(lock) mutex_lock_interruptible_nested(lock, 0)
#define mutex_lock_killable(lock) mutex_lock_killable_nested(lock, 0)
#else
-extern void fastcall mutex_lock(struct mutex *lock);
-extern int __must_check fastcall mutex_lock_interruptible(struct mutex *lock);
-extern int __must_check fastcall mutex_lock_killable(struct mutex *lock);
+extern void mutex_lock(struct mutex *lock);
+extern int __must_check mutex_lock_interruptible(struct mutex *lock);
+extern int __must_check mutex_lock_killable(struct mutex *lock);
# define mutex_lock_nested(lock, subclass) mutex_lock(lock)
# define mutex_lock_interruptible_nested(lock, subclass) mutex_lock_interruptible(lock)
/*
* NOTE: mutex_trylock() follows the spin_trylock() convention,
* not the down_trylock() convention!
+ *
+ * Returns 1 if the mutex has been acquired successfully, and 0 on contention.
*/
-extern int fastcall mutex_trylock(struct mutex *lock);
-extern void fastcall mutex_unlock(struct mutex *lock);
+extern int mutex_trylock(struct mutex *lock);
+extern void mutex_unlock(struct mutex *lock);
+extern int atomic_dec_and_mutex_lock(atomic_t *cnt, struct mutex *lock);
#endif