diff options
| author | Ke Wang <ke.wang@spreadtrum.com> | 2017-10-30 17:38:16 +0800 |
|---|---|---|
| committer | Todd Kjos <tkjos@google.com> | 2017-11-02 17:59:53 +0000 |
| commit | 7d5a251c66be3516c14cffa80e6b076b37736971 (patch) | |
| tree | 88284fb44d68960a77a0c6bcdcf703830728f677 /kernel | |
| parent | 1cb87c38cb81847938bbb4776d9c6f3afe8fd938 (diff) | |
sched: EAS: update trg_cpu to backup_cpu if no energy saving for target_cpu
If no energy saving for target_cpu in the calculation of energy_diff(),
backup_cpu will be set as the new dst_cpu for the next calculation. At this
point, we also need update the new trg_cpu as backup_cpu to make sure the
subsequent calculation of energy_diff() is correct.
Signed-off-by: Ke Wang <ke.wang@spreadtrum.com>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/fair.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 06b814b58d20..3b429c5ce721 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -6723,6 +6723,7 @@ static int select_energy_cpu_brute(struct task_struct *p, int prev_cpu, int sync /* No energy saving for target_cpu, try backup */ target_cpu = tmp_backup; eenv.dst_cpu = target_cpu; + eenv.trg_cpu = target_cpu; if (tmp_backup < 0 || tmp_backup == prev_cpu || energy_diff(&eenv) >= 0) { |