Commit 56cc7b8a authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

timekeeping: remove xtime_update 



There are no more users of xtime_update aside from legacy_timer_tick(),
so fold it into that function and remove the declaration.

update_process_times() is now only called inside of the kernel/time/
code, so the declaration can be moved there.

Reviewed-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Tested-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent f9a01539

include/linux/timekeeping.h

+0 −2
Original line number Diff line number Diff line
@@ -10,8 +10,6 @@ void timekeeping_init(void); 
extern int timekeeping_suspended;



/* Architecture timer tick functions: */

extern void update_process_times(int user);

extern void xtime_update(unsigned long ticks);

extern void legacy_timer_tick(unsigned long ticks);



/*

kernel/time/tick-legacy.c

+20 −2
Original line number Diff line number Diff line
@@ -10,10 +10,28 @@ 


#include "tick-internal.h"



/**

 * legacy_timer_tick() - advances the timekeeping infrastructure

 * @ticks:	number of ticks, that have elapsed since the last call.

 *

 * This is used by platforms that have not been converted to

 * generic clockevents.

 *

 * If 'ticks' is zero, the CPU is not handling timekeeping, so

 * only perform process accounting and profiling.

 *

 * Must be called with interrupts disabled.

 */

void legacy_timer_tick(unsigned long ticks)

{

	if (ticks)

		xtime_update(ticks);

	if (ticks) {

		raw_spin_lock(&jiffies_lock);

		write_seqcount_begin(&jiffies_seq);

		do_timer(ticks);

		write_seqcount_end(&jiffies_seq);

		raw_spin_unlock(&jiffies_lock);

		update_wall_time();

	}

	update_process_times(user_mode(get_irq_regs()));

	profile_tick(CPU_PROFILING);

}

kernel/time/timekeeping.c

+0 −16
Original line number Diff line number Diff line
@@ -2438,19 +2438,3 @@ void hardpps(const struct timespec64 *phase_ts, const struct timespec64 *raw_ts) 
}

EXPORT_SYMBOL(hardpps);

#endif /* CONFIG_NTP_PPS */
 


/**

 * xtime_update() - advances the timekeeping infrastructure

 * @ticks:	number of ticks, that have elapsed since the last call.

 *

 * Must be called with interrupts disabled.

 */

void xtime_update(unsigned long ticks)

{

	raw_spin_lock(&jiffies_lock);

	write_seqcount_begin(&jiffies_seq);

	do_timer(ticks);

	write_seqcount_end(&jiffies_seq);

	raw_spin_unlock(&jiffies_lock);

	update_wall_time();

}

kernel/time/timekeeping.h

+1 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ static inline int sched_clock_suspend(void) { return 0; } 
static inline void sched_clock_resume(void) { }

#endif



extern void update_process_times(int user);

extern void do_timer(unsigned long ticks);

extern void update_wall_time(void);

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