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-rw-r--r--kernel/sched/fair.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 726e1290572..dfa92b7b3de 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5026,8 +5026,21 @@ static int load_balance(int this_cpu, struct rq *this_rq,
.cpus = cpus,
};
+ /*
+ * For NEWLY_IDLE load_balancing, we don't need to consider
+ * other cpus in our group
+ */
+ if (idle == CPU_NEWLY_IDLE) {
+ env.dst_grpmask = NULL;
+ /*
+ * we don't care max_lb_iterations in this case,
+ * in following patch, this will be removed
+ */
+ max_lb_iterations = 0;
+ } else
+ max_lb_iterations = cpumask_weight(env.dst_grpmask);
+
cpumask_copy(cpus, cpu_active_mask);
- max_lb_iterations = cpumask_weight(env.dst_grpmask);
schedstat_inc(sd, lb_count[idle]);