diff options
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/fair.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index c7aaae2b1030..783356f96b7b 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -9313,6 +9313,14 @@ static struct rq *find_busiest_queue(struct lb_env *env, case migrate_util: util = cpu_util(cpu_of(rq)); + /* + * Don't try to pull utilization from a CPU with one + * running task. Whatever its utilization, we will fail + * detach the task. + */ + if (nr_running <= 1) + continue; + if (busiest_util < util) { busiest_util = util; busiest = rq; |