infiniband: use performance variant for_each_cpu_mask_nr

Change references from for_each_cpu_mask to for_each_cpu_mask_nr
where appropriate

Reviewed-by: Paul Jackson <pj@sgi.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

drivers/infiniband/hw/ehca/ehca_irq.c

@@ -641,8 +641,8 @@ static inline int find_next_online_cpu(struct ehca_comp_pool *pool)
 		ehca_dmp(&cpu_online_map, sizeof(cpumask_t), "");
 
 	spin_lock_irqsave(&pool->last_cpu_lock, flags);
-	cpu = next_cpu(pool->last_cpu, cpu_online_map);
-	if (cpu == NR_CPUS)
+	cpu = next_cpu_nr(pool->last_cpu, cpu_online_map);
+	if (cpu >= nr_cpu_ids)
 		cpu = first_cpu(cpu_online_map);
 	pool->last_cpu = cpu;
 	spin_unlock_irqrestore(&pool->last_cpu_lock, flags);