[PATCH 37/54] arch/ia64: replace cpumask_weight with cpumask_weight_eq in mm/tlb.c

[Yury Norov <yury.norov@xxxxxxxxx>]

__flush_tlb_range() code calls cpumask_weight() to compare the
weight of cpumask with a given number. We can do it more efficiently with
cpumask_weight_eq because conditional cpumask_weight may stop traversing
the cpumask earlier, as soon as condition is met.

Signed-off-by: Yury Norov <yury.norov@xxxxxxxxx>
---
 arch/ia64/mm/tlb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c
index 135b5135cace..a5bce13ab047 100644
--- a/arch/ia64/mm/tlb.c
+++ b/arch/ia64/mm/tlb.c
@@ -332,7 +332,7 @@ __flush_tlb_range (struct vm_area_struct *vma, unsigned long start,
 
 	preempt_disable();
 #ifdef CONFIG_SMP
-	if (mm != current->active_mm || cpumask_weight(mm_cpumask(mm)) != 1) {
+	if (mm != current->active_mm || !cpumask_weight_eq(mm_cpumask(mm), 1)) {
 		ia64_global_tlb_purge(mm, start, end, nbits);
 		preempt_enable();
 		return;
-- 
2.30.2