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Subject[tip:sched/domains] sched: Separate out build of MC sched domain from __build_sched_domains
Commit-ID:  410c408108bb85f32fe132aaf448388af0b6da64
Gitweb: http://git.kernel.org/tip/410c408108bb85f32fe132aaf448388af0b6da64
Author: Andreas Herrmann <andreas.herrmann3@amd.com>
AuthorDate: Tue, 18 Aug 2009 12:56:14 +0200
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 18 Aug 2009 18:35:41 +0200

sched: Separate out build of MC 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: <20090818105614.GF29515@alberich.amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>


---
kernel/sched.c | 30 ++++++++++++++++++------------
1 files changed, 18 insertions(+), 12 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index 3d0666c..5c829d4 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -8529,6 +8529,23 @@ static struct sched_domain *__build_cpu_sched_domain(struct s_data *d,
return sd;
}

+static struct sched_domain *__build_mc_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_MC
+ sd = &per_cpu(core_domains, i).sd;
+ SD_INIT(sd, MC);
+ set_domain_attribute(sd, attr);
+ cpumask_and(sched_domain_span(sd), cpu_map, cpu_coregroup_mask(i));
+ sd->parent = parent;
+ parent->child = sd;
+ cpu_to_core_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
@@ -8559,18 +8576,7 @@ 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);
-
-#ifdef CONFIG_SCHED_MC
- p = sd;
- sd = &per_cpu(core_domains, i).sd;
- SD_INIT(sd, MC);
- set_domain_attribute(sd, attr);
- cpumask_and(sched_domain_span(sd), cpu_map,
- cpu_coregroup_mask(i));
- sd->parent = p;
- p->child = sd;
- cpu_to_core_group(i, cpu_map, &sd->groups, d.tmpmask);
-#endif
+ sd = __build_mc_sched_domain(&d, cpu_map, attr, sd, i);

#ifdef CONFIG_SCHED_SMT
p = sd;

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