up(&cpuset_sem); 
cpuset_up(&cpuset_sem); 
void cpuset_update_current_mems_allowed(void){	struct cpuset *cs = current->cpuset;	if (!cs)		return;		/* task is exiting */	if (current->cpuset_mems_generation != cs->mems_generation) {		down(&cpuset_sem);		refresh_mems();		up(&cpuset_sem);	}}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/4247bdc60048018b98f71228b45cfbc5f5270c86/cpuset.c/clean/kernel/cpuset.c