After commit 88b8dac0, dst-cpu can be changed in load_balance(),
then we can't know cpu_idle_type of dst-cpu when load_balance()
return positive. So, add explicit cpu_idle_type checking.
Cc: Srivatsa Vaddagiri <va...@linux.vnet.ibm.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo....@lge.com>
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 6f72851..0c6aaf6 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5515,10 +5515,10 @@ static void rebalance_domains(int cpu, enum
cpu_idle_type idle)
if (time_after_eq(jiffies, sd->last_balance + interval)) {
if (load_balance(cpu, rq, sd, idle, &balance)) {
/*
- * We've pulled tasks over so either we're no
- * longer idle.
+ * We've pulled tasks over so either we may
+ * be no longer idle.
*/
- idle = CPU_NOT_IDLE;
+ idle = idle_cpu(cpu) ? CPU_IDLE : CPU_NOT_IDLE;
}
sd->last_balance = jiffies;
}
--
1.7.9.5
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