C++ (Cpp) LOCK_CONTENDED_FLAGS Examples

Example #1

unsigned long __lockfunc _write_lock_irqsave(rwlock_t *lock)
{
	unsigned long flags;

	local_irq_save(flags);
	preempt_disable();
	rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_);
	LOCK_CONTENDED_FLAGS(lock, _raw_write_trylock, _raw_write_lock,
			     _raw_write_lock_flags, &flags);
	return flags;
}

Example #2

File: spinlock.c Project: bjayesh/chandra

unsigned long __lockfunc _raw_spin_lock_irqsave_nested(raw_spinlock_t *lock,
						   int subclass)
{
	unsigned long flags;

	local_irq_save(flags);
	preempt_disable();
	spin_acquire(&lock->dep_map, subclass, 0, _RET_IP_);
	LOCK_CONTENDED_FLAGS(lock, do_raw_spin_trylock, do_raw_spin_lock,
				do_raw_spin_lock_flags, &flags);
	return flags;
}