mirror of https://gitee.com/openkylin/linux.git
sched: Fix task affinity for select_task_rq_fair
While merging select_task_rq_fair() and sched_balance_self() I made a mistake that leads to testing the wrong task affinty. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -1318,7 +1318,6 @@ find_idlest_cpu(struct sched_group *group, struct task_struct *p, int this_cpu)
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*/
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static int select_task_rq_fair(struct task_struct *p, int flag, int sync)
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{
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struct task_struct *t = current;
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struct sched_domain *tmp, *sd = NULL;
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int cpu = smp_processor_id();
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int prev_cpu = task_cpu(p);
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@ -1393,13 +1392,13 @@ static int select_task_rq_fair(struct task_struct *p, int flag, int sync)
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continue;
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}
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group = find_idlest_group(sd, t, cpu);
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group = find_idlest_group(sd, p, cpu);
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if (!group) {
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sd = sd->child;
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continue;
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}
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new_cpu = find_idlest_cpu(group, t, cpu);
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new_cpu = find_idlest_cpu(group, p, cpu);
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if (new_cpu == -1 || new_cpu == cpu) {
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/* Now try balancing at a lower domain level of cpu */
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sd = sd->child;
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