2677 static inline int get_numa_group(struct numa_group *grp)  in get_numa_group()  argument
2679 	return refcount_inc_not_zero(&grp->refcount);  in get_numa_group()
2682 static inline void put_numa_group(struct numa_group *grp)  in put_numa_group()  argument
2684 	if (refcount_dec_and_test(&grp->refcount))  in put_numa_group()
2685 		kfree_rcu(grp, rcu);  in put_numa_group()
2691 	struct numa_group *grp, *my_grp;  in task_numa_group()  local
2702 		grp = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);  in task_numa_group()
2703 		if (!grp)  in task_numa_group()
2706 		refcount_set(&grp->refcount, 1);  in task_numa_group()
2707 		grp->active_nodes = 1;  in task_numa_group()
2708 		grp->max_faults_cpu = 0;  in task_numa_group()
2709 		spin_lock_init(&grp->lock);  in task_numa_group()
2710 		grp->gid = p->pid;  in task_numa_group()
2713 			grp->faults[i] = p->numa_faults[i];  in task_numa_group()
2715 		grp->total_faults = p->total_numa_faults;  in task_numa_group()
2717 		grp->nr_tasks++;  in task_numa_group()
2718 		rcu_assign_pointer(p->numa_group, grp);  in task_numa_group()
2727 	grp = rcu_dereference(tsk->numa_group);  in task_numa_group()
2728 	if (!grp)  in task_numa_group()
2732 	if (grp == my_grp)  in task_numa_group()
2739 	if (my_grp->nr_tasks > grp->nr_tasks)  in task_numa_group()
2745 	if (my_grp->nr_tasks == grp->nr_tasks && my_grp > grp)  in task_numa_group()
2759 	if (join && !get_numa_group(grp))  in task_numa_group()
2768 	double_lock_irq(&my_grp->lock, &grp->lock);  in task_numa_group()
2772 		grp->faults[i] += p->numa_faults[i];  in task_numa_group()
2775 	grp->total_faults += p->total_numa_faults;  in task_numa_group()
2778 	grp->nr_tasks++;  in task_numa_group()
2781 	spin_unlock_irq(&grp->lock);  in task_numa_group()
2783 	rcu_assign_pointer(p->numa_group, grp);  in task_numa_group()
2803 	struct numa_group *grp = rcu_dereference_raw(p->numa_group);  in task_numa_free()  local
2811 	if (grp) {  in task_numa_free()
2812 		spin_lock_irqsave(&grp->lock, flags);  in task_numa_free()
2814 			grp->faults[i] -= p->numa_faults[i];  in task_numa_free()
2815 		grp->total_faults -= p->total_numa_faults;  in task_numa_free()
2817 		grp->nr_tasks--;  in task_numa_free()
2818 		spin_unlock_irqrestore(&grp->lock, flags);  in task_numa_free()
2820 		put_numa_group(grp);  in task_numa_free()