kernel/time/tick-sched.c

327 static atomic_t tick_dep_mask;
373 	if (check_tick_dependency(&tick_dep_mask))
376 	if (check_tick_dependency(&ts->tick_dep_mask))
379 	if (check_tick_dependency(&current->tick_dep_mask))
382 	if (check_tick_dependency(&current->signal->tick_dep_mask))
430 	 * activate_task()                      STORE p->tick_dep_mask
436 	 *     LOAD p->tick_dep_mask
450 	 *   smp_mb__after_spin_lock()          STORE p->tick_dep_mask
452 	 *      LOAD p->tick_dep_mask           LOAD p->cpu
495 	tick_nohz_dep_set_all(&tick_dep_mask, bit);
500 	atomic_andnot(BIT(bit), &tick_dep_mask);
514 	prev = atomic_fetch_or(BIT(bit), &ts->tick_dep_mask);
534 	atomic_andnot(BIT(bit), &ts->tick_dep_mask);
544 	if (!atomic_fetch_or(BIT(bit), &tsk->tick_dep_mask))
551 	atomic_andnot(BIT(bit), &tsk->tick_dep_mask);
565 	prev = atomic_fetch_or(BIT(bit), &sig->tick_dep_mask);
577 	atomic_andnot(BIT(bit), &sig->tick_dep_mask);
595 		if (atomic_read(&current->tick_dep_mask) ||
596 		    atomic_read(&current->signal->tick_dep_mask))