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6.18: fix BORE Scheduler #178

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6.18: fix BORE Scheduler #178

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12 changes: 6 additions & 6 deletions 6.18/sched/0001-bore-cachy.patch
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Original file line number Diff line number Diff line change
Expand Up @@ -1196,23 +1196,23 @@ index b2e4fd2070c4..6f3360a6c8ce 100644
if (dequeue_entities(rq, &p->se, flags) < 0)
return false;

@@ -8893,6 +8960,16 @@ static void check_preempt_wakeup_fair(struct rq *rq, struct task_struct *p, int
if (__pick_eevdf(cfs_rq, !do_preempt_short) == pse)
@@ -8988,6 +8988,16 @@
if (nse == pse)
goto preempt;

+#ifdef CONFIG_SCHED_BORE
+ if (static_branch_likely(&sched_bore_key) &&
+ sched_feat(PREEMPT_SHORT_BORE) &&
+ entity_is_task(pse) && entity_is_task(se) &&
+ task_of(pse)->bore.penalty < task_of(se)->bore.penalty) {
+ do_preempt_short = true;
+ preempt_action = PREEMPT_WAKEUP_SHORT;
+ goto preempt;
+ }
+#endif /* CONFIG_SCHED_BORE */
+
if (sched_feat(RUN_TO_PARITY) && do_preempt_short)
update_protect_slice(cfs_rq, se);

/*
* Because p is enqueued, nse being null can only mean that we
* dequeued a delayed task. If there are still entities queued in
@@ -9067,16 +9144,25 @@ static void yield_task_fair(struct rq *rq)
/*
* Are we the only task in the tree?
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