Exemplos de __raw_read_trylock em C++ (Cpp)

Exemplo n.º 1

Arquivo: spinlock_debug.c Projeto: johnny/CobraDroidBeta

int _raw_read_trylock(rwlock_t *lock)
{
	int ret = __raw_read_trylock(&lock->raw_lock);

#ifndef CONFIG_SMP
	/*
	 * Must not happen on UP:
	 */
	RWLOCK_BUG_ON(!ret, lock, "trylock failure on UP");
#endif
	return ret;
}

Exemplo n.º 2

	/*
	 * Must not happen on UP:
	 */
	SPIN_BUG_ON(!ret, lock, "trylock failure on UP");
#endif
	return ret;
}

void _raw_spin_unlock(spinlock_t *lock)
{
	debug_spin_unlock(lock);
	__raw_spin_unlock(&lock->raw_lock);
}

static void rwlock_bug(rwlock_t *lock, const char *msg)
{
	if (!debug_locks_off())
		return;

	printk(KERN_EMERG "BUG: rwlock %s on CPU#%d, %s/%d, %p (%s)\n",
		msg, raw_smp_processor_id(), current->comm,
		current->pid, lock, print_tainted());
	dump_stack();
}

#define RWLOCK_BUG_ON(cond, lock, msg) if (unlikely(cond)) rwlock_bug(lock, msg)

#if 0		/* __write_lock_debug() can lock up - maybe this can too? */
static void __read_lock_debug(rwlock_t *lock)
{
	int print_once = 1;
	u64 i;

	for (;;) {
		for (i = 0; i < loops_per_jiffy * HZ; i++) {
			if (__raw_read_trylock(&lock->raw_lock))
				return;
		}
		/* lockup suspected: */
		if (print_once) {
			print_once = 0;
			printk(KERN_EMERG "BUG: read-lock lockup on CPU#%d, "
					"%s/%d, %p (%s)\n",
				raw_smp_processor_id(), current->comm,
				current->pid, lock, print_tainted());
			dump_stack();
		}
	}
}

Exemplo n.º 3

Arquivo: spinlock.c Projeto: bjayesh/chandra

int __lockfunc _raw_read_trylock(rwlock_t *lock)
{
	return __raw_read_trylock(lock);
}

Exemplo n.º 4

Arquivo: spinlock_debug.c Projeto: jameshilliard/actiontec_opensrc_mi424wr-rev-e-f_fw-20-10-7-5

void _raw_read_lock(rwlock_t *lock)
{
	RWLOCK_BUG_ON(lock->magic != RWLOCK_MAGIC, lock, "bad magic");
	if (unlikely(!__raw_read_trylock(&lock->raw_lock)))
		__read_lock_debug(lock);
}