sched/headers: Move the cpufreq interfaces to <linux/sched/cpufreq.h>

No need to have this in the generic <linux/sched.h> header.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

include/linux/sched.h

@@ -2288,21 +2288,4 @@ static inline void mm_update_next_owner(struct mm_struct *mm)
 }
 #endif /* CONFIG_MEMCG */
 
-#define SCHED_CPUFREQ_RT	(1U << 0)
-#define SCHED_CPUFREQ_DL	(1U << 1)
-#define SCHED_CPUFREQ_IOWAIT	(1U << 2)
-
-#define SCHED_CPUFREQ_RT_DL	(SCHED_CPUFREQ_RT | SCHED_CPUFREQ_DL)
-
-#ifdef CONFIG_CPU_FREQ
-struct update_util_data {
-       void (*func)(struct update_util_data *data, u64 time, unsigned int flags);
-};
-
-void cpufreq_add_update_util_hook(int cpu, struct update_util_data *data,
-                       void (*func)(struct update_util_data *data, u64 time,
-				    unsigned int flags));
-void cpufreq_remove_update_util_hook(int cpu);
-#endif /* CONFIG_CPU_FREQ */
-
 #endif

include/linux/sched/cpufreq.h

@@ -3,4 +3,25 @@
 
 #include <linux/sched.h>
 
+/*
+ * Interface between cpufreq drivers and the scheduler:
+ */
+
+#define SCHED_CPUFREQ_RT	(1U << 0)
+#define SCHED_CPUFREQ_DL	(1U << 1)
+#define SCHED_CPUFREQ_IOWAIT	(1U << 2)
+
+#define SCHED_CPUFREQ_RT_DL	(SCHED_CPUFREQ_RT | SCHED_CPUFREQ_DL)
+
+#ifdef CONFIG_CPU_FREQ
+struct update_util_data {
+       void (*func)(struct update_util_data *data, u64 time, unsigned int flags);
+};
+
+void cpufreq_add_update_util_hook(int cpu, struct update_util_data *data,
+                       void (*func)(struct update_util_data *data, u64 time,
+				    unsigned int flags));
+void cpufreq_remove_update_util_hook(int cpu);
+#endif /* CONFIG_CPU_FREQ */
+
 #endif /* _LINUX_SCHED_CPUFREQ_H */