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Subject[tip:sched/core] sched: Merge cpu_to_core_group functions
Commit-ID:  f269893c575167447cc9f6d1867e639fb5b6f0c5
Gitweb: http://git.kernel.org/tip/f269893c575167447cc9f6d1867e639fb5b6f0c5
Author: Heiko Carstens <heiko.carstens@de.ibm.com>
AuthorDate: Tue, 31 Aug 2010 10:28:15 +0200
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Thu, 9 Sep 2010 20:41:18 +0200

sched: Merge cpu_to_core_group functions

Merge and simplify the two cpu_to_core_group variants so that the
resulting function follows the same pattern like cpu_to_phys_group.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20100831082843.953617555@de.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
kernel/sched.c | 18 +++++-------------
1 files changed, 5 insertions(+), 13 deletions(-)
diff --git a/kernel/sched.c b/kernel/sched.c
index 8eef8e5..1a0c084 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -6552,31 +6552,23 @@ cpu_to_cpu_group(int cpu, const struct cpumask *cpu_map,
#ifdef CONFIG_SCHED_MC
static DEFINE_PER_CPU(struct static_sched_domain, core_domains);
static DEFINE_PER_CPU(struct static_sched_group, sched_group_core);
-#endif /* CONFIG_SCHED_MC */

-#if defined(CONFIG_SCHED_MC) && defined(CONFIG_SCHED_SMT)
static int
cpu_to_core_group(int cpu, const struct cpumask *cpu_map,
struct sched_group **sg, struct cpumask *mask)
{
int group;
-
+#ifdef CONFIG_SCHED_SMT
cpumask_and(mask, topology_thread_cpumask(cpu), cpu_map);
group = cpumask_first(mask);
+#else
+ group = cpu;
+#endif
if (sg)
*sg = &per_cpu(sched_group_core, group).sg;
return group;
}
-#elif defined(CONFIG_SCHED_MC)
-static int
-cpu_to_core_group(int cpu, const struct cpumask *cpu_map,
- struct sched_group **sg, struct cpumask *unused)
-{
- if (sg)
- *sg = &per_cpu(sched_group_core, cpu).sg;
- return cpu;
-}
-#endif
+#endif /* CONFIG_SCHED_MC */

static DEFINE_PER_CPU(struct static_sched_domain, phys_domains);
static DEFINE_PER_CPU(struct static_sched_group, sched_group_phys);

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