sched: Move group scheduling functions out of include/linux/sched.h

- Make sched_group_{set_,}runtime(), sched_group_{set_,}period()
and sched_rt_can_attach() static.

- Move sched_{create,destroy,online,offline}_group() to
kernel/sched/sched.h.

- Remove declaration of sched_group_shares().

Signed-off-by: Li Zefan <lizefan@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/5135A7C5.3000708@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2 files changed, 17 insertions, 5 deletions

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 7f12624a393c..9ad26c986441 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -7455,7 +7455,7 @@ unlock:
         return err;
 }
 
-int sched_group_set_rt_runtime(struct task_group *tg, long rt_runtime_us)
+static int sched_group_set_rt_runtime(struct task_group *tg, long rt_runtime_us)
 {
         u64 rt_runtime, rt_period;
 
@@ -7467,7 +7467,7 @@ int sched_group_set_rt_runtime(struct task_group *tg, long rt_runtime_us)
         return tg_set_rt_bandwidth(tg, rt_period, rt_runtime);
 }
 
-long sched_group_rt_runtime(struct task_group *tg)
+static long sched_group_rt_runtime(struct task_group *tg)
 {
         u64 rt_runtime_us;
 
@@ -7479,7 +7479,7 @@ long sched_group_rt_runtime(struct task_group *tg)
         return rt_runtime_us;
 }
 
-int sched_group_set_rt_period(struct task_group *tg, long rt_period_us)
+static int sched_group_set_rt_period(struct task_group *tg, long rt_period_us)
 {
         u64 rt_runtime, rt_period;
 
@@ -7492,7 +7492,7 @@ int sched_group_set_rt_period(struct task_group *tg, long rt_period_us)
         return tg_set_rt_bandwidth(tg, rt_period, rt_runtime);
 }
 
-long sched_group_rt_period(struct task_group *tg)
+static long sched_group_rt_period(struct task_group *tg)
 {
         u64 rt_period_us;
 
@@ -7527,7 +7527,7 @@ static int sched_rt_global_constraints(void)
         return ret;
 }
 
-int sched_rt_can_attach(struct task_group *tg, struct task_struct *tsk)
+static int sched_rt_can_attach(struct task_group *tg, struct task_struct *tsk)
 {
         /* Don't accept realtime tasks when there is no way for them to run */
         if (rt_task(tsk) && tg->rt_bandwidth.rt_runtime == 0)
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index eca526d7afbd..304fc1c77143 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -221,6 +221,18 @@ extern void init_tg_rt_entry(struct task_group *tg, struct rt_rq *rt_rq,
                 struct sched_rt_entity *rt_se, int cpu,
                 struct sched_rt_entity *parent);
 
+extern struct task_group *sched_create_group(struct task_group *parent);
+extern void sched_online_group(struct task_group *tg,
+                               struct task_group *parent);
+extern void sched_destroy_group(struct task_group *tg);
+extern void sched_offline_group(struct task_group *tg);
+
+extern void sched_move_task(struct task_struct *tsk);
+
+#ifdef CONFIG_FAIR_GROUP_SCHED
+extern int sched_group_set_shares(struct task_group *tg, unsigned long shares);
+#endif
+
 #else /* CONFIG_CGROUP_SCHED */
 
 struct cfs_bandwidth { };