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scx: Fix CPU online tracking #215

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scx: Fix CPU online tracking #215

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17 changes: 14 additions & 3 deletions kernel/sched/ext.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5741,9 +5741,6 @@ void __init init_sched_ext_class(void)
BUG_ON(!zalloc_cpumask_var(&rq->scx.cpus_to_preempt, GFP_KERNEL));
BUG_ON(!zalloc_cpumask_var(&rq->scx.cpus_to_wait, GFP_KERNEL));
init_irq_work(&rq->scx.kick_cpus_irq_work, kick_cpus_irq_workfn);

if (cpu_online(cpu))
cpu_rq(cpu)->scx.flags |= SCX_RQ_ONLINE;
}

register_sysrq_key('S', &sysrq_sched_ext_reset_op);
Expand Down Expand Up @@ -6965,3 +6962,17 @@ static int __init scx_init(void)
return 0;
}
__initcall(scx_init);


static int __init scx_late_init(void)
{
s32 cpu;

for_each_possible_cpu(cpu) {
if (cpu_online(cpu))
cpu_rq(cpu)->scx.flags |= SCX_RQ_ONLINE;
}

return 0;
}
late_initcall(scx_late_init);