diff options
| -rw-r--r-- | include/linux/timekeeping.h | 2 | ||||
| -rw-r--r-- | kernel/time/tick-legacy.c | 22 | ||||
| -rw-r--r-- | kernel/time/timekeeping.c | 16 | ||||
| -rw-r--r-- | kernel/time/timekeeping.h | 1 |
4 files changed, 21 insertions, 20 deletions
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h index 3670cb1670ff..d47009611109 100644 --- a/include/linux/timekeeping.h +++ b/include/linux/timekeeping.h @@ -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); /* diff --git a/kernel/time/tick-legacy.c b/kernel/time/tick-legacy.c index 73c5a0af4743..af225b32f5b3 100644 --- a/kernel/time/tick-legacy.c +++ b/kernel/time/tick-legacy.c @@ -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); } diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 52fff7e9edcd..daa0ff017819 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -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(); -} diff --git a/kernel/time/timekeeping.h b/kernel/time/timekeeping.h index 099737f6f10c..d94b69c5b869 100644 --- a/kernel/time/timekeeping.h +++ b/kernel/time/timekeeping.h @@ -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); |