2937 static inline int get_numa_group(struct numa_group *grp)  in get_numa_group()  argument
2939 	return refcount_inc_not_zero(&grp->refcount);  in get_numa_group()
2942 static inline void put_numa_group(struct numa_group *grp)  in put_numa_group()  argument
2944 	if (refcount_dec_and_test(&grp->refcount))  in put_numa_group()
2945 		kfree_rcu(grp, rcu);  in put_numa_group()
2951 	struct numa_group *grp, *my_grp;  in task_numa_group()  local
2962 		grp = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);  in task_numa_group()
2963 		if (!grp)  in task_numa_group()
2966 		refcount_set(&grp->refcount, 1);  in task_numa_group()
2967 		grp->active_nodes = 1;  in task_numa_group()
2968 		grp->max_faults_cpu = 0;  in task_numa_group()
2969 		spin_lock_init(&grp->lock);  in task_numa_group()
2970 		grp->gid = p->pid;  in task_numa_group()
2973 			grp->faults[i] = p->numa_faults[i];  in task_numa_group()
2975 		grp->total_faults = p->total_numa_faults;  in task_numa_group()
2977 		grp->nr_tasks++;  in task_numa_group()
2978 		rcu_assign_pointer(p->numa_group, grp);  in task_numa_group()
2987 	grp = rcu_dereference(tsk->numa_group);  in task_numa_group()
2988 	if (!grp)  in task_numa_group()
2992 	if (grp == my_grp)  in task_numa_group()
2999 	if (my_grp->nr_tasks > grp->nr_tasks)  in task_numa_group()
3005 	if (my_grp->nr_tasks == grp->nr_tasks && my_grp > grp)  in task_numa_group()
3019 	if (join && !get_numa_group(grp))  in task_numa_group()
3028 	double_lock_irq(&my_grp->lock, &grp->lock);  in task_numa_group()
3032 		grp->faults[i] += p->numa_faults[i];  in task_numa_group()
3035 	grp->total_faults += p->total_numa_faults;  in task_numa_group()
3038 	grp->nr_tasks++;  in task_numa_group()
3041 	spin_unlock_irq(&grp->lock);  in task_numa_group()
3043 	rcu_assign_pointer(p->numa_group, grp);  in task_numa_group()
3063 	struct numa_group *grp = rcu_dereference_raw(p->numa_group);  in task_numa_free()  local
3071 	if (grp) {  in task_numa_free()
3072 		spin_lock_irqsave(&grp->lock, flags);  in task_numa_free()
3074 			grp->faults[i] -= p->numa_faults[i];  in task_numa_free()
3075 		grp->total_faults -= p->total_numa_faults;  in task_numa_free()
3077 		grp->nr_tasks--;  in task_numa_free()
3078 		spin_unlock_irqrestore(&grp->lock, flags);  in task_numa_free()
3080 		put_numa_group(grp);  in task_numa_free()