Esempi in C++ (Cpp) per security_sem_free

Esempio n. 1

File: sem.c Progetto: u9621071/kernel-uek-UEK3

static int newary(struct ipc_namespace *ns, struct ipc_params *params)
{
	int id;
	int retval;
	struct sem_array *sma;
	int size;
	key_t key = params->key;
	int nsems = params->u.nsems;
	int semflg = params->flg;
	int i;

	if (!nsems)
		return -EINVAL;
	if (ns->used_sems + nsems > ns->sc_semmns)
		return -ENOSPC;

	size = sizeof (*sma) + nsems * sizeof (struct sem);
	sma = ipc_rcu_alloc(size);
	if (!sma) {
		return -ENOMEM;
	}
	memset (sma, 0, size);

	sma->sem_perm.mode = (semflg & S_IRWXUGO);
	sma->sem_perm.key = key;

	sma->sem_perm.security = NULL;
	retval = security_sem_alloc(sma);
	if (retval) {
		ipc_rcu_putref(sma);
		return retval;
	}

	id = ipc_addid(&sem_ids(ns), &sma->sem_perm, ns->sc_semmni);
	if (id < 0) {
		security_sem_free(sma);
		ipc_rcu_putref(sma);
		return id;
	}
	ns->used_sems += nsems;

	sma->sem_base = (struct sem *) &sma[1];

	for (i = 0; i < nsems; i++) {
		INIT_LIST_HEAD(&sma->sem_base[i].sem_pending);
		spin_lock_init(&sma->sem_base[i].lock);
	}

	sma->complex_count = 0;
	INIT_LIST_HEAD(&sma->sem_pending);
	INIT_LIST_HEAD(&sma->list_id);
	sma->sem_nsems = nsems;
	sma->sem_ctime = get_seconds();
	sem_unlock(sma, -1);
	rcu_read_unlock();

	return sma->sem_perm.id;
}

Esempio n. 2

static
#endif
int newary(struct ipc_namespace *ns, struct ipc_params *params)
{
	int id;
	int retval;
	struct sem_array *sma;
	int size;
	key_t key = params->key;
	int nsems = params->u.nsems;
	int semflg = params->flg;

	if (!nsems)
		return -EINVAL;
	if (ns->used_sems + nsems > ns->sc_semmns)
		return -ENOSPC;

	size = sizeof (*sma) + nsems * sizeof (struct sem);
	sma = ipc_rcu_alloc(size);
	if (!sma) {
		return -ENOMEM;
	}
	memset (sma, 0, size);

	sma->sem_perm.mode = (semflg & S_IRWXUGO);
	sma->sem_perm.key = key;

	sma->sem_perm.security = NULL;
	retval = security_sem_alloc(sma);
	if (retval) {
		ipc_rcu_putref(sma);
		return retval;
	}

#ifdef CONFIG_KRG_IPC
	id = ipc_addid(&sem_ids(ns), &sma->sem_perm, ns->sc_semmni,
		       params->requested_id);
#else
	id = ipc_addid(&sem_ids(ns), &sma->sem_perm, ns->sc_semmni);
#endif
	if (id < 0) {
		security_sem_free(sma);
		ipc_rcu_putref(sma);
		return id;
	}
	ns->used_sems += nsems;

	sma->sem_base = (struct sem *) &sma[1];
	INIT_LIST_HEAD(&sma->sem_pending);
	INIT_LIST_HEAD(&sma->list_id);
	sma->sem_nsems = nsems;
	sma->sem_ctime = get_seconds();
#ifdef CONFIG_KRG_IPC
	INIT_LIST_HEAD(&sma->remote_sem_pending);

	if (is_krg_ipc(&sem_ids(ns))) {
		retval = krg_ipc_sem_newary(ns, sma);
		if (retval) {
			security_sem_free(sma);
			ipc_rcu_putref(sma);
			return retval;
		}
	} else

	sma->sem_perm.krgops = NULL;
#endif
	sem_unlock(sma);

	return sma->sem_perm.id;
}