sched/fair: Clean up update_sg_lb_stats() a bit

Add rq->nr_running to sgs->sum_nr_running directly instead of
assigning it through an intermediate variable nr_running.

Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1384508212-25032-1-git-send-email-kamalesh@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 6cb36c7ea39150585c5ab19a591acaf7d9b4a624..a566c0739f7774ceceb6e85cce009fd8ea17ad8a 100644 (file)
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5500,7 +5500,6 @@ static inline void update_sg_lb_stats(struct lb_env *env,
                        struct sched_group *group, int load_idx,
                        int local_group, struct sg_lb_stats *sgs)
 {
-       unsigned long nr_running;
        unsigned long load;
        int i;
 
@@ -5509,8 +5508,6 @@ static inline void update_sg_lb_stats(struct lb_env *env,
        for_each_cpu_and(i, sched_group_cpus(group), env->cpus) {
                struct rq *rq = cpu_rq(i);
 
-               nr_running = rq->nr_running;
-
                /* Bias balancing toward cpus of our domain */
                if (local_group)
                        load = target_load(i, load_idx);
@@ -5518,7 +5515,7 @@ static inline void update_sg_lb_stats(struct lb_env *env,
                        load = source_load(i, load_idx);
 
                sgs->group_load += load;
-               sgs->sum_nr_running += nr_running;
+               sgs->sum_nr_running += rq->nr_running;
 #ifdef CONFIG_NUMA_BALANCING
                sgs->nr_numa_running += rq->nr_numa_running;
                sgs->nr_preferred_running += rq->nr_preferred_running;