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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: Thomas 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
This commit is contained in:
Thomas Gleixner 2017-05-30 23:15:41 +02:00
parent 03676b41a8
commit bab0aae9dc
6 changed files with 36 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
include/linux/posix-timers.h
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@ -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);

2
kernel/time/alarmtimer.c
View File

@ -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>

2
kernel/time/posix-clock.c
View File

@ -25,6 +25,8 @@
#include <linux/syscalls.h>
#include <linux/uaccess.h>
#include "posix-timers.h"
static void delete_clock(struct kref *kref);
/*

2
kernel/time/posix-cpu-timers.c
View File

@ -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

1
kernel/time/posix-timers.c
View File

@ -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

29
kernel/time/posix-timers.h Normal file
View File

@ -0,0 +1,29 @@
#define TIMER_RETRY 1
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);
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;
int posix_timer_event(struct k_itimer *timr, int si_private);
void posix_cpu_timer_schedule(struct k_itimer *timer);