diff options
| -rw-r--r-- | kernel/sched/fair.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 3937f79240df..950046b1b8eb 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -6384,6 +6384,10 @@ static void attach_one_task(struct rq *rq, struct task_struct *p) { raw_spin_lock(&rq->lock); attach_task(rq, p); + /* + * We want to potentially raise target_cpu's OPP. + */ + update_capacity_of(cpu_of(rq)); raw_spin_unlock(&rq->lock); } @@ -6405,6 +6409,11 @@ static void attach_tasks(struct lb_env *env) attach_task(env->dst_rq, p); } + /* + * We want to potentially raise env.dst_cpu's OPP. + */ + update_capacity_of(env->dst_cpu); + raw_spin_unlock(&env->dst_rq->lock); } @@ -7667,6 +7676,11 @@ more_balance: * ld_moved - cumulative load moved across iterations */ cur_ld_moved = detach_tasks(&env); + /* + * We want to potentially lower env.src_cpu's OPP. + */ + if (cur_ld_moved) + update_capacity_of(env.src_cpu); /* * We've detached some tasks from busiest_rq. Every @@ -8037,8 +8051,13 @@ static int active_load_balance_cpu_stop(void *data) schedstat_inc(sd, alb_count); p = detach_one_task(&env); - if (p) + if (p) { schedstat_inc(sd, alb_pushed); + /* + * We want to potentially lower env.src_cpu's OPP. + */ + update_capacity_of(env.src_cpu); + } else schedstat_inc(sd, alb_failed); } |