atomic_t count;
int sleepers;
wait_queue_head_t wait;
-#ifdef WAITQUEUE_DEBUG
- long __magic;
-#endif
};
-#ifdef WAITQUEUE_DEBUG
-# define __SEM_DEBUG_INIT(name) \
- , (int)&(name).__magic
-#else
-# define __SEM_DEBUG_INIT(name)
-#endif
-
-#define __SEMAPHORE_INITIALIZER(name,count) \
-{ ATOMIC_INIT(count), 0, __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \
- __SEM_DEBUG_INIT(name) }
-
-#define __MUTEX_INITIALIZER(name) \
- __SEMAPHORE_INITIALIZER(name,1)
+#define __SEMAPHORE_INITIALIZER(name, n) \
+{ \
+ .count = ATOMIC_INIT(n), \
+ .sleepers = 0, \
+ .wait = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \
+}
#define __DECLARE_SEMAPHORE_GENERIC(name,count) \
struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
atomic_set(&sem->count, val);
sem->sleepers = 0;
init_waitqueue_head(&sem->wait);
-#ifdef WAITQUEUE_DEBUG
- sem->__magic = (int)&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();
__asm__ __volatile__(
{
int result;
-#ifdef WAITQUEUE_DEBUG
- CHECK_MAGIC(sem->__magic);
-#endif
might_sleep();
__asm__ __volatile__(
{
int result;
-#ifdef WAITQUEUE_DEBUG
- CHECK_MAGIC(sem->__magic);
-#endif
-
__asm__ __volatile__(
"# atomic interruptible down operation\n\t"
LOCK "decl %1\n\t" /* --sem->count */
*/
static inline void up(struct semaphore * sem)
{
-#ifdef WAITQUEUE_DEBUG
- CHECK_MAGIC(sem->__magic);
-#endif
__asm__ __volatile__(
"# atomic up operation\n\t"
LOCK "incl %0\n\t" /* ++sem->count */