C++ (Cpp) do_mlockall примеры использования

Пример #1

Файл: mlock.c Проект: BackupTheBerlios/tuxap

asmlinkage long sys_mlockall(int flags)
{
	unsigned long lock_limit;
	int ret = -EINVAL;

	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE)))
		goto out;

	ret = -EPERM;
	if (!can_do_mlock())
		goto out;

	down_write(&current->mm->mmap_sem);

	lock_limit = current->rlim[RLIMIT_MEMLOCK].rlim_cur;
	lock_limit >>= PAGE_SHIFT;

	ret = -ENOMEM;
	if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) ||
	    capable(CAP_IPC_LOCK))
		ret = do_mlockall(flags);
	up_write(&current->mm->mmap_sem);
out:
	return ret;
}

Пример #2

Файл: mlock.c Проект: BackupTheBerlios/tuxap

asmlinkage long sys_munlockall(void)
{
	int ret;

	down_write(&current->mm->mmap_sem);
	ret = do_mlockall(0);
	up_write(&current->mm->mmap_sem);
	return ret;
}

Пример #3

Файл: mlock.c Проект: xricson/knoppix

asmlinkage long sys_mlockall(int flags)
{
	unsigned long lock_limit;
	int ret = -EINVAL;

	down_write(&current->mm->mmap_sem);
	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE)))
		goto out;

	lock_limit = current->rlim[RLIMIT_MEMLOCK].rlim_cur;
	lock_limit >>= PAGE_SHIFT;

	ret = -ENOMEM;
	if (current->mm->total_vm <= lock_limit)
		ret = do_mlockall(flags);
out:
	up_write(&current->mm->mmap_sem);
	return ret;
}