Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit a40f262c authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

timekeeping: Move ktime_get() functions to timekeeping.c 



The ktime_get() functions for GENERIC_TIME=n are still located in
hrtimer.c. Move them to time/timekeeping.c where they belong.

LKML-Reference: <new-submission>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 951ed4d3

kernel/hrtimer.c

+0 −60
Original line number Diff line number Diff line
@@ -48,39 +48,6 @@ 


#include <asm/uaccess.h>



#ifndef CONFIG_GENERIC_TIME

/**

 * ktime_get - get the monotonic time in ktime_t format

 *

 * returns the time in ktime_t format

 */

ktime_t ktime_get(void)

{

	struct timespec now;



	ktime_get_ts(&now);



	return timespec_to_ktime(now);

}

EXPORT_SYMBOL_GPL(ktime_get);

#endif



/**

 * ktime_get_real - get the real (wall-) time in ktime_t format

 *

 * returns the time in ktime_t format

 */

ktime_t ktime_get_real(void)

{

	struct timespec now;



	getnstimeofday(&now);



	return timespec_to_ktime(now);

}



EXPORT_SYMBOL_GPL(ktime_get_real);



/*

 * The timer bases:

 *
@@ -108,33 +75,6 @@ DEFINE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases) = 
	}

};



#ifndef CONFIG_GENERIC_TIME

/**

 * ktime_get_ts - get the monotonic clock in timespec format

 * @ts:		pointer to timespec variable

 *

 * The function calculates the monotonic clock from the realtime

 * clock and the wall_to_monotonic offset and stores the result

 * in normalized timespec format in the variable pointed to by @ts.

 */

void ktime_get_ts(struct timespec *ts)

{

	struct timespec tomono;

	unsigned long seq;



	do {

		seq = read_seqbegin(&xtime_lock);

		getnstimeofday(ts);

		tomono = wall_to_monotonic;



	} while (read_seqretry(&xtime_lock, seq));



	set_normalized_timespec(ts, ts->tv_sec + tomono.tv_sec,

				ts->tv_nsec + tomono.tv_nsec);

}

EXPORT_SYMBOL_GPL(ktime_get_ts);

#endif



/*

 * Get the coarse grained time at the softirq based on xtime and

 * wall_to_monotonic.

kernel/time/timekeeping.c

+57 −2
Original line number Diff line number Diff line
@@ -290,10 +290,65 @@ static void change_clocksource(void) 
	       clock->name);

	 */

}

#else

#else /* GENERIC_TIME */

static inline void clocksource_forward_now(void) { }

static inline void change_clocksource(void) { }

#endif



/**

 * ktime_get - get the monotonic time in ktime_t format

 *

 * returns the time in ktime_t format

 */

ktime_t ktime_get(void)

{

	struct timespec now;



	ktime_get_ts(&now);



	return timespec_to_ktime(now);

}

EXPORT_SYMBOL_GPL(ktime_get);



/**

 * ktime_get_ts - get the monotonic clock in timespec format

 * @ts:		pointer to timespec variable

 *

 * The function calculates the monotonic clock from the realtime

 * clock and the wall_to_monotonic offset and stores the result

 * in normalized timespec format in the variable pointed to by @ts.

 */

void ktime_get_ts(struct timespec *ts)

{

	struct timespec tomono;

	unsigned long seq;



	do {

		seq = read_seqbegin(&xtime_lock);

		getnstimeofday(ts);

		tomono = wall_to_monotonic;



	} while (read_seqretry(&xtime_lock, seq));



	set_normalized_timespec(ts, ts->tv_sec + tomono.tv_sec,

				ts->tv_nsec + tomono.tv_nsec);

}

EXPORT_SYMBOL_GPL(ktime_get_ts);

#endif /* !GENERIC_TIME */



/**

 * ktime_get_real - get the real (wall-) time in ktime_t format

 *

 * returns the time in ktime_t format

 */

ktime_t ktime_get_real(void)

{

	struct timespec now;



	getnstimeofday(&now);



	return timespec_to_ktime(now);

}

EXPORT_SYMBOL_GPL(ktime_get_real);



/**

 * getrawmonotonic - Returns the raw monotonic time in a timespec