nr_moved is not the correct check for triggering all pinned logic. Fix the
all pinned logic in the case of load_balance_newidle().
Signed-off-by: Suresh Siddha <[email protected]>
---
diff --git a/kernel/sched.c b/kernel/sched.c
index 3332bbb..0cdac9c 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2668,6 +2668,7 @@ load_balance_newidle(int this_cpu, struct rq *this_rq, struct sched_domain *sd)
unsigned long imbalance;
int nr_moved = 0;
int sd_idle = 0;
+ int all_pinned = 0;
cpumask_t cpus = CPU_MASK_ALL;
/*
@@ -2706,10 +2707,10 @@ redo:
double_lock_balance(this_rq, busiest);
nr_moved = move_tasks(this_rq, this_cpu, busiest,
minus_1_or_zero(busiest->nr_running),
- imbalance, sd, CPU_NEWLY_IDLE, NULL);
+ imbalance, sd, CPU_NEWLY_IDLE, &all_pinned);
spin_unlock(&busiest->lock);
- if (!nr_moved) {
+ if (unlikely(all_pinned)) {
cpu_clear(cpu_of(busiest), cpus);
if (!cpus_empty(cpus))
goto redo;
-
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