[PATCH v4 4/7] sched/fair: remove useless check in select_idle_core

From: Abel Wu
Date: Sun Jun 19 2022 - 08:05:46 EST


The function only gets called when sds->has_idle_cores is true which can
be possible only when sched_smt_present is enabled.

Signed-off-by: Abel Wu <wuyun.abel@xxxxxxxxxxxxx>
---
kernel/sched/fair.c | 3 ---
1 file changed, 3 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index aba1dad19574..1cc86e76e38e 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -6256,9 +6256,6 @@ static int select_idle_core(struct task_struct *p, int core, struct cpumask *cpu
bool idle = true;
int cpu;

- if (!static_branch_likely(&sched_smt_present))
- return __select_idle_cpu(core, p);
-
for_each_cpu(cpu, cpu_smt_mask(core)) {
if (!available_idle_cpu(cpu)) {
idle = false;
--
2.31.1