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Revert "sched: fair: Always try to use energy efficient cpu for wakeups"

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This reverts commit 63c27502786646271b4c4ba32268b727e294bbb2.

Bug: 117438867
Bug: 144961676
Test: Tracing confirms EAS is no longer always used
Change-Id: If321547a86592527438ac21c3734a9f4decda712
Signed-off-by: Connor O'Brien <connoro@google.com>
Signed-off-by: Jimmy Shiu <jimmyshiu@google.com>
This commit is contained in:
Connor O'Brien 2018-12-05 12:31:26 -08:00 committed by spakkkk
parent 7d9ac85ec1
commit 63e23634b7
1 changed files with 0 additions and 10 deletions
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10
kernel/sched/fair.c
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@ -8013,16 +8013,6 @@ select_task_rq_fair(struct task_struct *p, int prev_cpu, int sd_flag, int wake_f
int want_affine = 0; int want_affine = 0;
int sync = (wake_flags & WF_SYNC) && !(current->flags & PF_EXITING); int sync = (wake_flags & WF_SYNC) && !(current->flags & PF_EXITING);
if (static_branch_unlikely(&sched_energy_present)) {
rcu_read_lock();
new_cpu = find_energy_efficient_cpu(p, prev_cpu, sync,
sibling_count_hint);
if (unlikely(new_cpu < 0))
new_cpu = prev_cpu;
rcu_read_unlock();
return new_cpu;
}
if (sd_flag & SD_BALANCE_WAKE) { if (sd_flag & SD_BALANCE_WAKE) {
record_wakee(p); record_wakee(p);