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Commit bab0aae9 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

posix-timers: Move posix-timer internals to core 



None of these declarations is required outside of kernel/time. Move them to
an internal header.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Christoph Hellwig <hch@lst.de>
Link: http://lkml.kernel.org/r/20170530211656.394803853@linutronix.de
parent 03676b41

include/linux/posix-timers.h

+0 −30
Original line number Diff line number Diff line
@@ -100,36 +100,6 @@ struct k_itimer { 
	} it;

};



struct k_clock {

	int (*clock_getres) (const clockid_t which_clock, struct timespec64 *tp);

	int (*clock_set) (const clockid_t which_clock,

			  const struct timespec64 *tp);

	int (*clock_get) (const clockid_t which_clock, struct timespec64 *tp);

	int (*clock_adj) (const clockid_t which_clock, struct timex *tx);

	int (*timer_create) (struct k_itimer *timer);

	int (*nsleep) (const clockid_t which_clock, int flags,

		       struct timespec64 *, struct timespec __user *);

	long (*nsleep_restart) (struct restart_block *restart_block);

	int (*timer_set) (struct k_itimer *timr, int flags,

			  struct itimerspec64 *new_setting,

			  struct itimerspec64 *old_setting);

	int (*timer_del) (struct k_itimer *timr);

#define TIMER_RETRY 1

	void (*timer_get) (struct k_itimer *timr,

			   struct itimerspec64 *cur_setting);

};



extern const struct k_clock clock_posix_cpu;

extern const struct k_clock clock_posix_dynamic;

extern const struct k_clock clock_process;

extern const struct k_clock clock_thread;

extern const struct k_clock alarm_clock;



/* function to call to trigger timer event */

int posix_timer_event(struct k_itimer *timr, int si_private);



void posix_cpu_timer_schedule(struct k_itimer *timer);



void run_posix_cpu_timers(struct task_struct *task);

void posix_cpu_timers_exit(struct task_struct *task);

void posix_cpu_timers_exit_group(struct task_struct *task);

kernel/time/alarmtimer.c

+2 −0
Original line number Diff line number Diff line
@@ -28,6 +28,8 @@ 
#include <linux/workqueue.h>

#include <linux/freezer.h>



#include "posix-timers.h"



#define CREATE_TRACE_POINTS

#include <trace/events/alarmtimer.h>

kernel/time/posix-clock.c

+2 −0
Original line number Diff line number Diff line
@@ -25,6 +25,8 @@ 
#include <linux/syscalls.h>

#include <linux/uaccess.h>



#include "posix-timers.h"



static void delete_clock(struct kref *kref);



/*

kernel/time/posix-cpu-timers.c

+2 −0
Original line number Diff line number Diff line
@@ -13,6 +13,8 @@ 
#include <linux/tick.h>

#include <linux/workqueue.h>



#include "posix-timers.h"



/*

 * Called after updating RLIMIT_CPU to run cpu timer and update

 * tsk->signal->cputime_expires expiration cache if necessary. Needs

kernel/time/posix-timers.c

+1 −0
Original line number Diff line number Diff line
@@ -51,6 +51,7 @@ 
#include <linux/hashtable.h>



#include "timekeeping.h"

#include "posix-timers.h"



/*

 * Management arrays for POSIX timers. Timers are now kept in static hash table