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timekeeping: Make jiffies_lock internal 

Nothing outside of the timekeeping core needs that lock.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
This commit is contained in:
Thomas Gleixner 2013-02-21 22:51:36 +00:00 committed by John Stultz
parent 23a9537a69
commit eb93e4d930
3 changed files with 3 additions and 1 deletions
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1
include/linux/jiffies.h
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@ -75,7 +75,6 @@ extern int register_refined_jiffies(long clock_tick_rate);
*/ */
extern u64 __jiffy_data jiffies_64; extern u64 __jiffy_data jiffies_64;
extern unsigned long volatile __jiffy_data jiffies; extern unsigned long volatile __jiffy_data jiffies;
extern seqlock_t jiffies_lock;
#if (BITS_PER_LONG < 64) #if (BITS_PER_LONG < 64)
u64 get_jiffies_64(void); u64 get_jiffies_64(void);

2
kernel/time/tick-internal.h
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@ -4,6 +4,8 @@
#include <linux/hrtimer.h> #include <linux/hrtimer.h>
#include <linux/tick.h> #include <linux/tick.h>
extern seqlock_t jiffies_lock;
#ifdef CONFIG_GENERIC_CLOCKEVENTS_BUILD #ifdef CONFIG_GENERIC_CLOCKEVENTS_BUILD
#define TICK_DO_TIMER_NONE -1 #define TICK_DO_TIMER_NONE -1

1
kernel/time/timekeeping.c
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@ -23,6 +23,7 @@
#include <linux/stop_machine.h> #include <linux/stop_machine.h>
#include <linux/pvclock_gtod.h> #include <linux/pvclock_gtod.h>
#include "tick-internal.h"
static struct timekeeper timekeeper; static struct timekeeper timekeeper;