atomic_t count;
int sleepers;
wait_queue_head_t wait;
-#ifdef WAITQUEUE_DEBUG
- long __magic;
-#endif
};
-#ifdef WAITQUEUE_DEBUG
-# define __SEM_DEBUG_INIT(name) .__magic = (long)&(name).__magic
-#else
-# define __SEM_DEBUG_INIT(name)
-#endif
-
-#define __SEMAPHORE_INIT(name,cnt) { \
+#define __SEMAPHORE_INIT(name, cnt) \
+{ \
.count = ATOMIC_INIT(cnt), \
.wait = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait), \
- __SEM_DEBUG_INIT(name) \
}
#define __MUTEX_INITIALIZER(name) __SEMAPHORE_INIT(name,1)
atomic_set(&sem->count, val);
sem->sleepers = 0;
init_waitqueue_head(&sem->wait);
-#ifdef WAITQUEUE_DEBUG
- sem->__magic = (long)&sem->__magic;
-#endif
}
static inline void init_MUTEX(struct semaphore *sem)
*/
static inline void down(struct semaphore * sem)
{
-#ifdef WAITQUEUE_DEBUG
- CHECK_MAGIC(sem->__magic);
-#endif
might_sleep();
__down_op(sem, __down_failed);
}
*/
static inline int down_interruptible (struct semaphore * sem)
{
-#ifdef WAITQUEUE_DEBUG
- CHECK_MAGIC(sem->__magic);
-#endif
might_sleep();
return __down_op_ret(sem, __down_interruptible_failed);
}
static inline int down_trylock(struct semaphore *sem)
{
-#ifdef WAITQUEUE_DEBUG
- CHECK_MAGIC(sem->__magic);
-#endif
-
return __down_op_ret(sem, __down_trylock_failed);
}
*/
static inline void up(struct semaphore * sem)
{
-#ifdef WAITQUEUE_DEBUG
- CHECK_MAGIC(sem->__magic);
-#endif
-
__up_op(sem, __up_wakeup);
}