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Subject[RFC v3 PATCH 1/7] sched: Rename sched_rt_period_mask() and use it in CFS also
sched: Rename sched_rt_period_mask() and use it in CFS also.

From: Bharata B Rao <bharata@linux.vnet.ibm.com>

sched_rt_period_mask() is needed in CFS also. Rename it to a generic name
and move it to kernel/sched.c. No functionality change in this patch.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
---
kernel/sched.c | 23 +++++++++++++++++++++++
kernel/sched_rt.c | 19 +------------------
2 files changed, 24 insertions(+), 18 deletions(-)
diff --git a/kernel/sched.c b/kernel/sched.c
index a455dca..1309e8d 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1810,6 +1810,29 @@ static void cfs_rq_set_shares(struct cfs_rq *cfs_rq, unsigned long shares)

static void calc_load_account_active(struct rq *this_rq);

+
+#if defined(CONFIG_RT_GROUP_SCHED) || defined(CONFIG_FAIR_GROUP_SCHED)
+
+#ifdef CONFIG_SMP
+static inline const struct cpumask *sched_bw_period_mask(void)
+{
+ return cpu_rq(smp_processor_id())->rd->span;
+}
+#else /* !CONFIG_SMP */
+static inline const struct cpumask *sched_bw_period_mask(void)
+{
+ return cpu_online_mask;
+}
+#endif /* CONFIG_SMP */
+
+#else
+static inline const struct cpumask *sched_bw_period_mask(void)
+{
+ return cpu_online_mask;
+}
+
+#endif
+
#include "sched_stats.h"
#include "sched_idletask.c"
#include "sched_fair.c"
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index a4d790c..97067e1 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -235,18 +235,6 @@ static int rt_se_boosted(struct sched_rt_entity *rt_se)
return p->prio != p->normal_prio;
}

-#ifdef CONFIG_SMP
-static inline const struct cpumask *sched_rt_period_mask(void)
-{
- return cpu_rq(smp_processor_id())->rd->span;
-}
-#else
-static inline const struct cpumask *sched_rt_period_mask(void)
-{
- return cpu_online_mask;
-}
-#endif
-
static inline
struct rt_rq *sched_rt_period_rt_rq(struct rt_bandwidth *rt_b, int cpu)
{
@@ -296,11 +284,6 @@ static inline int rt_rq_throttled(struct rt_rq *rt_rq)
return rt_rq->rt_throttled;
}

-static inline const struct cpumask *sched_rt_period_mask(void)
-{
- return cpu_online_mask;
-}
-
static inline
struct rt_rq *sched_rt_period_rt_rq(struct rt_bandwidth *rt_b, int cpu)
{
@@ -518,7 +501,7 @@ static int do_sched_rt_period_timer(struct rt_bandwidth *rt_b, int overrun)
if (!rt_bandwidth_enabled() || rt_b->rt_runtime == RUNTIME_INF)
return 1;

- span = sched_rt_period_mask();
+ span = sched_bw_period_mask();
for_each_cpu(i, span) {
int enqueue = 0;
struct rt_rq *rt_rq = sched_rt_period_rt_rq(rt_b, i);

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