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sched: Separate out build of SMT sched domain from __build_sched_domains 

... to further strip down __build_sched_domains().

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20090818105703.GG29515@alberich.amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Andreas Herrmann 2009-08-18 12:57:03 +02:00 committed by Ingo Molnar
parent 410c408108
commit d817353555
1 changed files with 19 additions and 13 deletions
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32
kernel/sched.c
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@ -8546,6 +8546,23 @@ static struct sched_domain *__build_mc_sched_domain(struct s_data *d,
return sd;
}
static struct sched_domain *__build_smt_sched_domain(struct s_data *d,
const struct cpumask *cpu_map, struct sched_domain_attr *attr,
struct sched_domain *parent, int i)
{
struct sched_domain *sd = parent;
#ifdef CONFIG_SCHED_SMT
sd = &per_cpu(cpu_domains, i).sd;
SD_INIT(sd, SIBLING);
set_domain_attribute(sd, attr);
cpumask_and(sched_domain_span(sd), cpu_map, topology_thread_cpumask(i));
sd->parent = parent;
parent->child = sd;
cpu_to_cpu_group(i, cpu_map, &sd->groups, d->tmpmask);
#endif
return sd;
}
/*
* Build sched domains for a given set of cpus and attach the sched domains
* to the individual cpus
@ -8569,7 +8586,7 @@ static int __build_sched_domains(const struct cpumask *cpu_map,
* Set up domains for cpus specified by the cpu_map.
*/
for_each_cpu(i, cpu_map) {
struct sched_domain *sd = NULL, *p;
struct sched_domain *sd;
cpumask_and(d.nodemask, cpumask_of_node(cpu_to_node(i)),
cpu_map);
@ -8577,18 +8594,7 @@ static int __build_sched_domains(const struct cpumask *cpu_map,
sd = __build_numa_sched_domains(&d, cpu_map, attr, i);
sd = __build_cpu_sched_domain(&d, cpu_map, attr, sd, i);
sd = __build_mc_sched_domain(&d, cpu_map, attr, sd, i);
#ifdef CONFIG_SCHED_SMT
p = sd;
sd = &per_cpu(cpu_domains, i).sd;
SD_INIT(sd, SIBLING);
set_domain_attribute(sd, attr);
cpumask_and(sched_domain_span(sd),
topology_thread_cpumask(i), cpu_map);
sd->parent = p;
p->child = sd;
cpu_to_cpu_group(i, cpu_map, &sd->groups, d.tmpmask);
#endif
sd = __build_smt_sched_domain(&d, cpu_map, attr, sd, i);
}
#ifdef CONFIG_SCHED_SMT