up(&cpuset_sem); 
cpuset_up(&cpuset_sem); 
cpumask_t cpuset_cpus_allowed(const struct task_struct *tsk){	cpumask_t mask;	down(&cpuset_sem);	task_lock((struct task_struct *)tsk);	guarantee_online_cpus(tsk->cpuset, &mask);	task_unlock((struct task_struct *)tsk);	up(&cpuset_sem);	return mask;}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/4247bdc60048018b98f71228b45cfbc5f5270c86/cpuset.c/clean/kernel/cpuset.c