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sched/core: Pass child domain into sd_init()
If behavioural sched_domain flags depend on topology flags set at higher domain levels we need a way to update the child domain flags. Moving the child pointer assignment inside sd_init() should make that possible. Signed-off-by: Morten Rasmussen <morten.rasmussen@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: dietmar.eggemann@arm.com Cc: freedom.tan@mediatek.com Cc: keita.kobayashi.ym@renesas.com Cc: mgalbraith@suse.de Cc: sgurrappadi@nvidia.com Cc: vincent.guittot@linaro.org Cc: yuyang.du@intel.com Link: http://lkml.kernel.org/r/1469453670-2660-7-git-send-email-morten.rasmussen@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
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commit
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1 changed files with 4 additions and 3 deletions
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@ -6381,7 +6381,8 @@ static int sched_domains_curr_level;
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SD_SHARE_POWERDOMAIN)
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static struct sched_domain *
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sd_init(struct sched_domain_topology_level *tl, int cpu)
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sd_init(struct sched_domain_topology_level *tl,
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struct sched_domain *child, int cpu)
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{
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struct sched_domain *sd = *per_cpu_ptr(tl->data.sd, cpu);
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int sd_weight, sd_flags = 0;
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@ -6433,6 +6434,7 @@ sd_init(struct sched_domain_topology_level *tl, int cpu)
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.smt_gain = 0,
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.max_newidle_lb_cost = 0,
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.next_decay_max_lb_cost = jiffies,
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.child = child,
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#ifdef CONFIG_SCHED_DEBUG
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.name = tl->name,
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#endif
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@ -6857,14 +6859,13 @@ struct sched_domain *build_sched_domain(struct sched_domain_topology_level *tl,
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const struct cpumask *cpu_map, struct sched_domain_attr *attr,
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struct sched_domain *child, int cpu)
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{
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struct sched_domain *sd = sd_init(tl, cpu);
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struct sched_domain *sd = sd_init(tl, child, cpu);
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cpumask_and(sched_domain_span(sd), cpu_map, tl->mask(cpu));
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if (child) {
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sd->level = child->level + 1;
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sched_domain_level_max = max(sched_domain_level_max, sd->level);
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child->parent = sd;
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sd->child = child;
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if (!cpumask_subset(sched_domain_span(child),
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sched_domain_span(sd))) {
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