Commit-ID: 3676b13e8524c576825fe1e731e347dba0083888 Gitweb: http://git.kernel.org/tip/3676b13e8524c576825fe1e731e347dba0083888 Author: Morten Rasmussen <[email protected]> AuthorDate: Mon, 25 Jul 2016 14:34:23 +0100 Committer: Ingo Molnar <[email protected]> CommitDate: Thu, 18 Aug 2016 11:26:54 +0200
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 <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> --- kernel/sched/core.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 46bfb90..5739465 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -6381,7 +6381,8 @@ static int sched_domains_curr_level; SD_SHARE_POWERDOMAIN) static struct sched_domain * -sd_init(struct sched_domain_topology_level *tl, int cpu) +sd_init(struct sched_domain_topology_level *tl, + struct sched_domain *child, int cpu) { struct sched_domain *sd = *per_cpu_ptr(tl->data.sd, cpu); int sd_weight, sd_flags = 0; @@ -6433,6 +6434,7 @@ sd_init(struct sched_domain_topology_level *tl, int cpu) .smt_gain = 0, .max_newidle_lb_cost = 0, .next_decay_max_lb_cost = jiffies, + .child = child, #ifdef CONFIG_SCHED_DEBUG .name = tl->name, #endif @@ -6857,14 +6859,13 @@ struct sched_domain *build_sched_domain(struct sched_domain_topology_level *tl, const struct cpumask *cpu_map, struct sched_domain_attr *attr, struct sched_domain *child, int cpu) { - struct sched_domain *sd = sd_init(tl, cpu); + struct sched_domain *sd = sd_init(tl, child, cpu); cpumask_and(sched_domain_span(sd), cpu_map, tl->mask(cpu)); if (child) { sd->level = child->level + 1; sched_domain_level_max = max(sched_domain_level_max, sd->level); child->parent = sd; - sd->child = child; if (!cpumask_subset(sched_domain_span(child), sched_domain_span(sd))) {
