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sched/headers: Split hotplug CPU interfaces out of <linux/sched.h> into <linux/sched/hotplug.h>

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Split the CPU hotplug scheduler APIs out of the common 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>
This commit is contained in:
Ingo Molnar 2017-02-03 14:52:01 +01:00
parent 70b8157e61
commit 0ca0156973
2 changed files with 20 additions and 15 deletions
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15
include/linux/sched.h
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@ -196,15 +196,6 @@ extern void cpu_init (void);
extern void trap_init(void); extern void trap_init(void);
extern void update_process_times(int user); extern void update_process_times(int user);
extern void scheduler_tick(void); extern void scheduler_tick(void);
extern int sched_cpu_starting(unsigned int cpu);
extern int sched_cpu_activate(unsigned int cpu);
extern int sched_cpu_deactivate(unsigned int cpu);
#ifdef CONFIG_HOTPLUG_CPU
extern int sched_cpu_dying(unsigned int cpu);
#else
# define sched_cpu_dying NULL
#endif
#define MAX_SCHEDULE_TIMEOUT LONG_MAX #define MAX_SCHEDULE_TIMEOUT LONG_MAX
extern signed long schedule_timeout(signed long timeout); extern signed long schedule_timeout(signed long timeout);
@ -1498,12 +1489,6 @@ extern void sched_exec(void);
#define sched_exec() {} #define sched_exec() {}
#endif #endif
#ifdef CONFIG_HOTPLUG_CPU
extern void idle_task_exit(void);
#else
static inline void idle_task_exit(void) {}
#endif
extern int yield_to(struct task_struct *p, bool preempt); extern int yield_to(struct task_struct *p, bool preempt);
extern void set_user_nice(struct task_struct *p, long nice); extern void set_user_nice(struct task_struct *p, long nice);
extern int task_prio(const struct task_struct *p); extern int task_prio(const struct task_struct *p);

20
include/linux/sched/hotplug.h
View File

@ -3,4 +3,24 @@
#include <linux/sched.h> #include <linux/sched.h>
/*
* Scheduler interfaces for hotplug CPU support:
*/
extern int sched_cpu_starting(unsigned int cpu);
extern int sched_cpu_activate(unsigned int cpu);
extern int sched_cpu_deactivate(unsigned int cpu);
#ifdef CONFIG_HOTPLUG_CPU
extern int sched_cpu_dying(unsigned int cpu);
#else
# define sched_cpu_dying NULL
#endif
#ifdef CONFIG_HOTPLUG_CPU
extern void idle_task_exit(void);
#else
static inline void idle_task_exit(void) {}
#endif
#endif /* _LINUX_SCHED_HOTPLUG_H */ #endif /* _LINUX_SCHED_HOTPLUG_H */