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sched: Separate out build of SMT sched groups from __build_sched_domains

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... to further strip down __build_sched_domains().

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20090818105751.GH29515@alberich.amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Andreas Herrmann 2009-08-18 12:57:51 +02:00 committed by Ingo Molnar
parent d817353555
commit 0e8e85c941
1 changed files with 20 additions and 11 deletions
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31
kernel/sched.c
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@ -8563,6 +8563,25 @@ static struct sched_domain *__build_smt_sched_domain(struct s_data *d,
return sd;
}
static void build_sched_groups(struct s_data *d, enum sched_domain_level l,
const struct cpumask *cpu_map, int cpu)
{
switch (l) {
#ifdef CONFIG_SCHED_SMT
case SD_LV_SIBLING: /* set up CPU (sibling) groups */
cpumask_and(d->this_sibling_map, cpu_map,
topology_thread_cpumask(cpu));
if (cpu == cpumask_first(d->this_sibling_map))
init_sched_build_groups(d->this_sibling_map, cpu_map,
&cpu_to_cpu_group,
d->send_covered, d->tmpmask);
break;
#endif
default:
break;
}
}
/*
* Build sched domains for a given set of cpus and attach the sched domains
* to the individual cpus
@ -8597,19 +8616,9 @@ static int __build_sched_domains(const struct cpumask *cpu_map,
sd = __build_smt_sched_domain(&d, cpu_map, attr, sd, i);
}
#ifdef CONFIG_SCHED_SMT
/* Set up CPU (sibling) groups */
for_each_cpu(i, cpu_map) {
cpumask_and(d.this_sibling_map,
topology_thread_cpumask(i), cpu_map);
if (i != cpumask_first(d.this_sibling_map))
continue;
init_sched_build_groups(d.this_sibling_map, cpu_map,
&cpu_to_cpu_group,
d.send_covered, d.tmpmask);
build_sched_groups(&d, SD_LV_SIBLING, cpu_map, i);
}
#endif
#ifdef CONFIG_SCHED_MC
/* Set up multi-core groups */