int ker_semBDelete(SEM_ID semid)
{
int ret = -1;
unsigned long flags;
struct task_struct *tsk;
struct semb_wait_item *wait;
struct list_head *list;
struct semb_struct *sem = (struct semb_struct *)semid;
if(!semid)
{
LOG("Delete NULL BSem!");
return ERROR_SEMID_INVALID;
}
if (sem->magic != SEM_MAGIC)
{
return ERROR_SEMID_INVALID;
}
if(InInterrupt())
{
LOG("Delete BSem <0x%p> In ISR!",sem);
return ERROR_SEM_IN_INTR;
}
delete_sem_from_list(&sem->all_list);
spin_lock_irqsave(&sem->lock, flags);
sem->magic = 0;
while (!list_empty(&sem->wait_list))
{
list = sem->wait_list.next;
wait = list_entry(list, struct semb_wait_item, list);
list_del(list);
list->next = NULL;
tsk = wait->task;
wait->flag |= SEM_DELETED;
try_to_wake_up(tsk);
}
spin_unlock_irqrestore(&sem->lock, flags);
if (atomic_dec_and_test(&sem->refcount))
{
hal_free_align4(sem);
}
ret = 0;
return ret;
}
inline int fastcall wake_up_process(struct task_struct * p)
{
return try_to_wake_up(p, 0);
}
