diff options
Diffstat (limited to 'kernel/time')
-rw-r--r-- | kernel/time/alarmtimer.c | 27 | ||||
-rw-r--r-- | kernel/time/clockevents.c | 6 | ||||
-rw-r--r-- | kernel/time/clocksource.c | 2 | ||||
-rw-r--r-- | kernel/time/hrtimer.c | 56 | ||||
-rw-r--r-- | kernel/time/itimer.c | 12 | ||||
-rw-r--r-- | kernel/time/jiffies.c | 4 | ||||
-rw-r--r-- | kernel/time/ntp.c | 2 | ||||
-rw-r--r-- | kernel/time/posix-cpu-timers.c | 2 | ||||
-rw-r--r-- | kernel/time/posix-timers.c | 24 | ||||
-rw-r--r-- | kernel/time/tick-broadcast-hrtimer.c | 2 | ||||
-rw-r--r-- | kernel/time/tick-broadcast.c | 27 | ||||
-rw-r--r-- | kernel/time/tick-common.c | 4 | ||||
-rw-r--r-- | kernel/time/tick-oneshot.c | 2 | ||||
-rw-r--r-- | kernel/time/tick-sched.c | 34 | ||||
-rw-r--r-- | kernel/time/tick-sched.h | 2 | ||||
-rw-r--r-- | kernel/time/time.c | 2 | ||||
-rw-r--r-- | kernel/time/timecounter.c | 6 | ||||
-rw-r--r-- | kernel/time/timekeeping.c | 63 | ||||
-rw-r--r-- | kernel/time/timekeeping_internal.h | 6 | ||||
-rw-r--r-- | kernel/time/timer.c | 2 | ||||
-rw-r--r-- | kernel/time/timer_list.c | 2 | ||||
-rw-r--r-- | kernel/time/timer_stats.c | 2 |
22 files changed, 151 insertions, 138 deletions
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c index 9b08ca391aed..e6dc9a538efa 100644 --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -234,7 +234,7 @@ static int alarmtimer_suspend(struct device *dev) min = freezer_delta; expires = freezer_expires; type = freezer_alarmtype; - freezer_delta = ktime_set(0, 0); + freezer_delta = 0; spin_unlock_irqrestore(&freezer_delta_lock, flags); rtc = alarmtimer_get_rtcdev(); @@ -254,13 +254,13 @@ static int alarmtimer_suspend(struct device *dev) if (!next) continue; delta = ktime_sub(next->expires, base->gettime()); - if (!min.tv64 || (delta.tv64 < min.tv64)) { + if (!min || (delta < min)) { expires = next->expires; min = delta; type = i; } } - if (min.tv64 == 0) + if (min == 0) return 0; if (ktime_to_ns(min) < 2 * NSEC_PER_SEC) { @@ -277,7 +277,7 @@ static int alarmtimer_suspend(struct device *dev) now = ktime_add(now, min); /* Set alarm, if in the past reject suspend briefly to handle */ - ret = rtc_timer_start(rtc, &rtctimer, now, ktime_set(0, 0)); + ret = rtc_timer_start(rtc, &rtctimer, now, 0); if (ret < 0) __pm_wakeup_event(ws, MSEC_PER_SEC); return ret; @@ -328,7 +328,7 @@ static void alarmtimer_freezerset(ktime_t absexp, enum alarmtimer_type type) delta = ktime_sub(absexp, base->gettime()); spin_lock_irqsave(&freezer_delta_lock, flags); - if (!freezer_delta.tv64 || (delta.tv64 < freezer_delta.tv64)) { + if (!freezer_delta || (delta < freezer_delta)) { freezer_delta = delta; freezer_expires = absexp; freezer_alarmtype = type; @@ -453,10 +453,10 @@ u64 alarm_forward(struct alarm *alarm, ktime_t now, ktime_t interval) delta = ktime_sub(now, alarm->node.expires); - if (delta.tv64 < 0) + if (delta < 0) return 0; - if (unlikely(delta.tv64 >= interval.tv64)) { + if (unlikely(delta >= interval)) { s64 incr = ktime_to_ns(interval); overrun = ktime_divns(delta, incr); @@ -464,7 +464,7 @@ u64 alarm_forward(struct alarm *alarm, ktime_t now, ktime_t interval) alarm->node.expires = ktime_add_ns(alarm->node.expires, incr*overrun); - if (alarm->node.expires.tv64 > now.tv64) + if (alarm->node.expires > now) return overrun; /* * This (and the ktime_add() below) is the @@ -516,12 +516,13 @@ static enum alarmtimer_restart alarm_handle_timer(struct alarm *alarm, spin_lock_irqsave(&ptr->it_lock, flags); if ((ptr->it_sigev_notify & ~SIGEV_THREAD_ID) != SIGEV_NONE) { - if (posix_timer_event(ptr, 0) != 0) + if (IS_ENABLED(CONFIG_POSIX_TIMERS) && + posix_timer_event(ptr, 0) != 0) ptr->it_overrun++; } /* Re-add periodic timers */ - if (ptr->it.alarm.interval.tv64) { + if (ptr->it.alarm.interval) { ptr->it_overrun += alarm_forward(alarm, now, ptr->it.alarm.interval); result = ALARMTIMER_RESTART; @@ -729,7 +730,7 @@ static int update_rmtp(ktime_t exp, enum alarmtimer_type type, rem = ktime_sub(exp, alarm_bases[type].gettime()); - if (rem.tv64 <= 0) + if (rem <= 0) return 0; rmt = ktime_to_timespec(rem); @@ -754,7 +755,7 @@ static long __sched alarm_timer_nsleep_restart(struct restart_block *restart) struct alarm alarm; int ret = 0; - exp.tv64 = restart->nanosleep.expires; + exp = restart->nanosleep.expires; alarm_init(&alarm, type, alarmtimer_nsleep_wakeup); if (alarmtimer_do_nsleep(&alarm, exp)) @@ -834,7 +835,7 @@ static int alarm_timer_nsleep(const clockid_t which_clock, int flags, restart = ¤t->restart_block; restart->fn = alarm_timer_nsleep_restart; restart->nanosleep.clockid = type; - restart->nanosleep.expires = exp.tv64; + restart->nanosleep.expires = exp; restart->nanosleep.rmtp = rmtp; ret = -ERESTART_RESTARTBLOCK; diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c index 2c5bc77c0bb0..97ac0951f164 100644 --- a/kernel/time/clockevents.c +++ b/kernel/time/clockevents.c @@ -179,7 +179,7 @@ void clockevents_switch_state(struct clock_event_device *dev, void clockevents_shutdown(struct clock_event_device *dev) { clockevents_switch_state(dev, CLOCK_EVT_STATE_SHUTDOWN); - dev->next_event.tv64 = KTIME_MAX; + dev->next_event = KTIME_MAX; } /** @@ -213,7 +213,7 @@ static int clockevents_increase_min_delta(struct clock_event_device *dev) if (dev->min_delta_ns >= MIN_DELTA_LIMIT) { printk_deferred(KERN_WARNING "CE: Reprogramming failure. Giving up\n"); - dev->next_event.tv64 = KTIME_MAX; + dev->next_event = KTIME_MAX; return -ETIME; } @@ -310,7 +310,7 @@ int clockevents_program_event(struct clock_event_device *dev, ktime_t expires, int64_t delta; int rc; - if (unlikely(expires.tv64 < 0)) { + if (unlikely(expires < 0)) { WARN_ON_ONCE(1); return -ETIME; } diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c index 150242ccfcd2..665985b0a89a 100644 --- a/kernel/time/clocksource.c +++ b/kernel/time/clocksource.c @@ -170,7 +170,7 @@ void clocksource_mark_unstable(struct clocksource *cs) static void clocksource_watchdog(unsigned long data) { struct clocksource *cs; - cycle_t csnow, wdnow, cslast, wdlast, delta; + u64 csnow, wdnow, cslast, wdlast, delta; int64_t wd_nsec, cs_nsec; int next_cpu, reset_pending; diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c index 08be5c99d26b..c6ecedd3b839 100644 --- a/kernel/time/hrtimer.c +++ b/kernel/time/hrtimer.c @@ -50,7 +50,7 @@ #include <linux/timer.h> #include <linux/freezer.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <trace/events/timer.h> @@ -171,7 +171,7 @@ hrtimer_check_target(struct hrtimer *timer, struct hrtimer_clock_base *new_base) return 0; expires = ktime_sub(hrtimer_get_expires(timer), new_base->offset); - return expires.tv64 <= new_base->cpu_base->expires_next.tv64; + return expires <= new_base->cpu_base->expires_next; #else return 0; #endif @@ -313,7 +313,7 @@ ktime_t ktime_add_safe(const ktime_t lhs, const ktime_t rhs) * We use KTIME_SEC_MAX here, the maximum timeout which we can * return to user space in a timespec: */ - if (res.tv64 < 0 || res.tv64 < lhs.tv64 || res.tv64 < rhs.tv64) + if (res < 0 || res < lhs || res < rhs) res = ktime_set(KTIME_SEC_MAX, 0); return res; @@ -465,8 +465,8 @@ static inline void hrtimer_update_next_timer(struct hrtimer_cpu_base *cpu_base, static ktime_t __hrtimer_get_next_event(struct hrtimer_cpu_base *cpu_base) { struct hrtimer_clock_base *base = cpu_base->clock_base; - ktime_t expires, expires_next = { .tv64 = KTIME_MAX }; unsigned int active = cpu_base->active_bases; + ktime_t expires, expires_next = KTIME_MAX; hrtimer_update_next_timer(cpu_base, NULL); for (; active; base++, active >>= 1) { @@ -479,7 +479,7 @@ static ktime_t __hrtimer_get_next_event(struct hrtimer_cpu_base *cpu_base) next = timerqueue_getnext(&base->active); timer = container_of(next, struct hrtimer, node); expires = ktime_sub(hrtimer_get_expires(timer), base->offset); - if (expires.tv64 < expires_next.tv64) { + if (expires < expires_next) { expires_next = expires; hrtimer_update_next_timer(cpu_base, timer); } @@ -489,8 +489,8 @@ static ktime_t __hrtimer_get_next_event(struct hrtimer_cpu_base *cpu_base) * the clock bases so the result might be negative. Fix it up * to prevent a false positive in clockevents_program_event(). */ - if (expires_next.tv64 < 0) - expires_next.tv64 = 0; + if (expires_next < 0) + expires_next = 0; return expires_next; } #endif @@ -561,10 +561,10 @@ hrtimer_force_reprogram(struct hrtimer_cpu_base *cpu_base, int skip_equal) expires_next = __hrtimer_get_next_event(cpu_base); - if (skip_equal && expires_next.tv64 == cpu_base->expires_next.tv64) + if (skip_equal && expires_next == cpu_base->expires_next) return; - cpu_base->expires_next.tv64 = expires_next.tv64; + cpu_base->expires_next = expires_next; /* * If a hang was detected in the last timer interrupt then we @@ -622,10 +622,10 @@ static void hrtimer_reprogram(struct hrtimer *timer, * CLOCK_REALTIME timer might be requested with an absolute * expiry time which is less than base->offset. Set it to 0. */ - if (expires.tv64 < 0) - expires.tv64 = 0; + if (expires < 0) + expires = 0; - if (expires.tv64 >= cpu_base->expires_next.tv64) + if (expires >= cpu_base->expires_next) return; /* Update the pointer to the next expiring timer */ @@ -653,7 +653,7 @@ static void hrtimer_reprogram(struct hrtimer *timer, */ static inline void hrtimer_init_hres(struct hrtimer_cpu_base *base) { - base->expires_next.tv64 = KTIME_MAX; + base->expires_next = KTIME_MAX; base->hres_active = 0; } @@ -827,21 +827,21 @@ u64 hrtimer_forward(struct hrtimer *timer, ktime_t now, ktime_t interval) delta = ktime_sub(now, hrtimer_get_expires(timer)); - if (delta.tv64 < 0) + if (delta < 0) return 0; if (WARN_ON(timer->state & HRTIMER_STATE_ENQUEUED)) return 0; - if (interval.tv64 < hrtimer_resolution) - interval.tv64 = hrtimer_resolution; + if (interval < hrtimer_resolution) + interval = hrtimer_resolution; - if (unlikely(delta.tv64 >= interval.tv64)) { + if (unlikely(delta >= interval)) { s64 incr = ktime_to_ns(interval); orun = ktime_divns(delta, incr); hrtimer_add_expires_ns(timer, incr * orun); - if (hrtimer_get_expires_tv64(timer) > now.tv64) + if (hrtimer_get_expires_tv64(timer) > now) return orun; /* * This (and the ktime_add() below) is the @@ -955,7 +955,7 @@ static inline ktime_t hrtimer_update_lowres(struct hrtimer *timer, ktime_t tim, */ timer->is_rel = mode & HRTIMER_MODE_REL; if (timer->is_rel) - tim = ktime_add_safe(tim, ktime_set(0, hrtimer_resolution)); + tim = ktime_add_safe(tim, hrtimer_resolution); #endif return tim; } @@ -1104,7 +1104,7 @@ u64 hrtimer_get_next_event(void) raw_spin_lock_irqsave(&cpu_base->lock, flags); if (!__hrtimer_hres_active(cpu_base)) - expires = __hrtimer_get_next_event(cpu_base).tv64; + expires = __hrtimer_get_next_event(cpu_base); raw_spin_unlock_irqrestore(&cpu_base->lock, flags); @@ -1296,7 +1296,7 @@ static void __hrtimer_run_queues(struct hrtimer_cpu_base *cpu_base, ktime_t now) * are right-of a not yet expired timer, because that * timer will have to trigger a wakeup anyway. */ - if (basenow.tv64 < hrtimer_get_softexpires_tv64(timer)) + if (basenow < hrtimer_get_softexpires_tv64(timer)) break; __run_hrtimer(cpu_base, base, timer, &basenow); @@ -1318,7 +1318,7 @@ void hrtimer_interrupt(struct clock_event_device *dev) BUG_ON(!cpu_base->hres_active); cpu_base->nr_events++; - dev->next_event.tv64 = KTIME_MAX; + dev->next_event = KTIME_MAX; raw_spin_lock(&cpu_base->lock); entry_time = now = hrtimer_update_base(cpu_base); @@ -1331,7 +1331,7 @@ retry: * timers which run their callback and need to be requeued on * this CPU. */ - cpu_base->expires_next.tv64 = KTIME_MAX; + cpu_base->expires_next = KTIME_MAX; __hrtimer_run_queues(cpu_base, now); @@ -1379,13 +1379,13 @@ retry: cpu_base->hang_detected = 1; raw_spin_unlock(&cpu_base->lock); delta = ktime_sub(now, entry_time); - if ((unsigned int)delta.tv64 > cpu_base->max_hang_time) - cpu_base->max_hang_time = (unsigned int) delta.tv64; + if ((unsigned int)delta > cpu_base->max_hang_time) + cpu_base->max_hang_time = (unsigned int) delta; /* * Limit it to a sensible value as we enforce a longer * delay. Give the CPU at least 100ms to catch up. */ - if (delta.tv64 > 100 * NSEC_PER_MSEC) + if (delta > 100 * NSEC_PER_MSEC) expires_next = ktime_add_ns(now, 100 * NSEC_PER_MSEC); else expires_next = ktime_add(now, delta); @@ -1495,7 +1495,7 @@ static int update_rmtp(struct hrtimer *timer, struct timespec __user *rmtp) ktime_t rem; rem = hrtimer_expires_remaining(timer); - if (rem.tv64 <= 0) + if (rem <= 0) return 0; rmt = ktime_to_timespec(rem); @@ -1693,7 +1693,7 @@ schedule_hrtimeout_range_clock(ktime_t *expires, u64 delta, * Optimize when a zero timeout value is given. It does not * matter whether this is an absolute or a relative time. */ - if (expires && !expires->tv64) { + if (expires && *expires == 0) { __set_current_state(TASK_RUNNING); return 0; } diff --git a/kernel/time/itimer.c b/kernel/time/itimer.c index 2b9f45bc955d..8c89143f9ebf 100644 --- a/kernel/time/itimer.c +++ b/kernel/time/itimer.c @@ -14,7 +14,7 @@ #include <linux/hrtimer.h> #include <trace/events/timer.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> /** * itimer_get_remtime - get remaining time for the timer @@ -34,10 +34,10 @@ static struct timeval itimer_get_remtime(struct hrtimer *timer) * then we return 0 - which is correct. */ if (hrtimer_active(timer)) { - if (rem.tv64 <= 0) - rem.tv64 = NSEC_PER_USEC; + if (rem <= 0) + rem = NSEC_PER_USEC; } else - rem.tv64 = 0; + rem = 0; return ktime_to_timeval(rem); } @@ -216,12 +216,12 @@ again: goto again; } expires = timeval_to_ktime(value->it_value); - if (expires.tv64 != 0) { + if (expires != 0) { tsk->signal->it_real_incr = timeval_to_ktime(value->it_interval); hrtimer_start(timer, expires, HRTIMER_MODE_REL); } else - tsk->signal->it_real_incr.tv64 = 0; + tsk->signal->it_real_incr = 0; trace_itimer_state(ITIMER_REAL, value, 0); spin_unlock_irq(&tsk->sighand->siglock); diff --git a/kernel/time/jiffies.c b/kernel/time/jiffies.c index 555e21f7b966..a4a0e478e44d 100644 --- a/kernel/time/jiffies.c +++ b/kernel/time/jiffies.c @@ -59,9 +59,9 @@ #define JIFFIES_SHIFT 8 #endif -static cycle_t jiffies_read(struct clocksource *cs) +static u64 jiffies_read(struct clocksource *cs) { - return (cycle_t) jiffies; + return (u64) jiffies; } static struct clocksource clocksource_jiffies = { diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index 6df8927c58a5..edf19cc53140 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c @@ -381,7 +381,7 @@ ktime_t ntp_get_next_leap(void) if ((time_state == TIME_INS) && (time_status & STA_INS)) return ktime_set(ntp_next_leap_sec, 0); - ret.tv64 = KTIME_MAX; + ret = KTIME_MAX; return ret; } diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c index f246763c9947..e9e8c10f0d9a 100644 --- a/kernel/time/posix-cpu-timers.c +++ b/kernel/time/posix-cpu-timers.c @@ -6,7 +6,7 @@ #include <linux/posix-timers.h> #include <linux/errno.h> #include <linux/math64.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <linux/kernel_stat.h> #include <trace/events/timer.h> #include <linux/tick.h> diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c index f2826c35e918..1e6623d76750 100644 --- a/kernel/time/posix-timers.c +++ b/kernel/time/posix-timers.c @@ -36,7 +36,7 @@ #include <linux/time.h> #include <linux/mutex.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <linux/list.h> #include <linux/init.h> #include <linux/compiler.h> @@ -359,7 +359,7 @@ static void schedule_next_timer(struct k_itimer *timr) { struct hrtimer *timer = &timr->it.real.timer; - if (timr->it.real.interval.tv64 == 0) + if (timr->it.real.interval == 0) return; timr->it_overrun += (unsigned int) hrtimer_forward(timer, @@ -449,7 +449,7 @@ static enum hrtimer_restart posix_timer_fn(struct hrtimer *timer) timr = container_of(timer, struct k_itimer, it.real.timer); spin_lock_irqsave(&timr->it_lock, flags); - if (timr->it.real.interval.tv64 != 0) + if (timr->it.real.interval != 0) si_private = ++timr->it_requeue_pending; if (posix_timer_event(timr, si_private)) { @@ -458,7 +458,7 @@ static enum hrtimer_restart posix_timer_fn(struct hrtimer *timer) * we will not get a call back to restart it AND * it should be restarted. */ - if (timr->it.real.interval.tv64 != 0) { + if (timr->it.real.interval != 0) { ktime_t now = hrtimer_cb_get_time(timer); /* @@ -485,9 +485,9 @@ static enum hrtimer_restart posix_timer_fn(struct hrtimer *timer) */ #ifdef CONFIG_HIGH_RES_TIMERS { - ktime_t kj = ktime_set(0, NSEC_PER_SEC / HZ); + ktime_t kj = NSEC_PER_SEC / HZ; - if (timr->it.real.interval.tv64 < kj.tv64) + if (timr->it.real.interval < kj) now = ktime_add(now, kj); } #endif @@ -743,7 +743,7 @@ common_timer_get(struct k_itimer *timr, struct itimerspec *cur_setting) iv = timr->it.real.interval; /* interval timer ? */ - if (iv.tv64) + if (iv) cur_setting->it_interval = ktime_to_timespec(iv); else if (!hrtimer_active(timer) && (timr->it_sigev_notify & ~SIGEV_THREAD_ID) != SIGEV_NONE) @@ -756,13 +756,13 @@ common_timer_get(struct k_itimer *timr, struct itimerspec *cur_setting) * timer move the expiry time forward by intervals, so * expiry is > now. */ - if (iv.tv64 && (timr->it_requeue_pending & REQUEUE_PENDING || - (timr->it_sigev_notify & ~SIGEV_THREAD_ID) == SIGEV_NONE)) + if (iv && (timr->it_requeue_pending & REQUEUE_PENDING || + (timr->it_sigev_notify & ~SIGEV_THREAD_ID) == SIGEV_NONE)) timr->it_overrun += (unsigned int) hrtimer_forward(timer, now, iv); remaining = __hrtimer_expires_remaining_adjusted(timer, now); /* Return 0 only, when the timer is expired and not pending */ - if (remaining.tv64 <= 0) { + if (remaining <= 0) { /* * A single shot SIGEV_NONE timer must return 0, when * it is expired ! @@ -839,7 +839,7 @@ common_timer_set(struct k_itimer *timr, int flags, common_timer_get(timr, old_setting); /* disable the timer */ - timr->it.real.interval.tv64 = 0; + timr->it.real.interval = 0; /* * careful here. If smp we could be in the "fire" routine which will * be spinning as we hold the lock. But this is ONLY an SMP issue. @@ -924,7 +924,7 @@ retry: static int common_timer_del(struct k_itimer *timer) { - timer->it.real.interval.tv64 = 0; + timer->it.real.interval = 0; if (hrtimer_try_to_cancel(&timer->it.real.timer) < 0) return TIMER_RETRY; diff --git a/kernel/time/tick-broadcast-hrtimer.c b/kernel/time/tick-broadcast-hrtimer.c index 690b797f522e..a7bb8f33ae07 100644 --- a/kernel/time/tick-broadcast-hrtimer.c +++ b/kernel/time/tick-broadcast-hrtimer.c @@ -97,7 +97,7 @@ static enum hrtimer_restart bc_handler(struct hrtimer *t) ce_broadcast_hrtimer.event_handler(&ce_broadcast_hrtimer); if (clockevent_state_oneshot(&ce_broadcast_hrtimer)) - if (ce_broadcast_hrtimer.next_event.tv64 != KTIME_MAX) + if (ce_broadcast_hrtimer.next_event != KTIME_MAX) return HRTIMER_RESTART; return HRTIMER_NORESTART; diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index f6aae7977824..3109204c87cc 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -604,14 +604,14 @@ static void tick_handle_oneshot_broadcast(struct clock_event_device *dev) bool bc_local; raw_spin_lock(&tick_broadcast_lock); - dev->next_event.tv64 = KTIME_MAX; - next_event.tv64 = KTIME_MAX; + dev->next_event = KTIME_MAX; + next_event = KTIME_MAX; cpumask_clear(tmpmask); now = ktime_get(); /* Find all expired events */ for_each_cpu(cpu, tick_broadcast_oneshot_mask) { td = &per_cpu(tick_cpu_device, cpu); - if (td->evtdev->next_event.tv64 <= now.tv64) { + if (td->evtdev->next_event <= now) { cpumask_set_cpu(cpu, tmpmask); /* * Mark the remote cpu in the pending mask, so @@ -619,8 +619,8 @@ static void tick_handle_oneshot_broadcast(struct clock_event_device *dev) * timer in tick_broadcast_oneshot_control(). */ cpumask_set_cpu(cpu, tick_broadcast_pending_mask); - } else if (td->evtdev->next_event.tv64 < next_event.tv64) { - next_event.tv64 = td->evtdev->next_event.tv64; + } else if (td->evtdev->next_event < next_event) { + next_event = td->evtdev->next_event; next_cpu = cpu; } } @@ -657,7 +657,7 @@ static void tick_handle_oneshot_broadcast(struct clock_event_device *dev) * - There are pending events on sleeping CPUs which were not * in the event mask */ - if (next_event.tv64 != KTIME_MAX) + if (next_event != KTIME_MAX) tick_broadcast_set_event(dev, next_cpu, next_event); raw_spin_unlock(&tick_broadcast_lock); @@ -672,7 +672,7 @@ static int broadcast_needs_cpu(struct clock_event_device *bc, int cpu) { if (!(bc->features & CLOCK_EVT_FEAT_HRTIMER)) return 0; - if (bc->next_event.tv64 == KTIME_MAX) + if (bc->next_event == KTIME_MAX) return 0; return bc->bound_on == cpu ? -EBUSY : 0; } @@ -688,7 +688,7 @@ static void broadcast_shutdown_local(struct clock_event_device *bc, if (bc->features & CLOCK_EVT_FEAT_HRTIMER) { if (broadcast_needs_cpu(bc, smp_processor_id())) return; - if (dev->next_event.tv64 < bc->next_event.tv64) + if (dev->next_event < bc->next_event) return; } clockevents_switch_state(dev, CLOCK_EVT_STATE_SHUTDOWN); @@ -754,7 +754,7 @@ int __tick_broadcast_oneshot_control(enum tick_broadcast_state state) */ if (cpumask_test_cpu(cpu, tick_broadcast_force_mask)) { ret = -EBUSY; - } else if (dev->next_event.tv64 < bc->next_event.tv64) { + } else if (dev->next_event < bc->next_event) { tick_broadcast_set_event(bc, cpu, dev->next_event); /* * In case of hrtimer broadcasts the @@ -789,7 +789,7 @@ int __tick_broadcast_oneshot_control(enum tick_broadcast_state state) /* * Bail out if there is no next event. */ - if (dev->next_event.tv64 == KTIME_MAX) + if (dev->next_event == KTIME_MAX) goto out; /* * If the pending bit is not set, then we are @@ -824,7 +824,7 @@ int __tick_broadcast_oneshot_control(enum tick_broadcast_state state) * nohz fixups. */ now = ktime_get(); - if (dev->next_event.tv64 <= now.tv64) { + if (dev->next_event <= now) { cpumask_set_cpu(cpu, tick_broadcast_force_mask); goto out; } @@ -871,6 +871,9 @@ void tick_broadcast_setup_oneshot(struct clock_event_device *bc) { int cpu = smp_processor_id(); + if (!bc) + return; + /* Set it up only once ! */ if (bc->event_handler != tick_handle_oneshot_broadcast) { int was_periodic = clockevent_state_periodic(bc); @@ -894,7 +897,7 @@ void tick_broadcast_setup_oneshot(struct clock_event_device *bc) tick_next_period); tick_broadcast_set_event(bc, cpu, tick_next_period); } else - bc->next_event.tv64 = KTIME_MAX; + bc->next_event = KTIME_MAX; } else { /* * The first cpu which switches to oneshot mode sets diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c index 4fcd99e12aa0..49edc1c4f3e6 100644 --- a/kernel/time/tick-common.c +++ b/kernel/time/tick-common.c @@ -178,8 +178,8 @@ static void tick_setup_device(struct tick_device *td, struct clock_event_device *newdev, int cpu, const struct cpumask *cpumask) { - ktime_t next_event; void (*handler)(struct clock_event_device *) = NULL; + ktime_t next_event = 0; /* * First device setup ? @@ -195,7 +195,7 @@ static void tick_setup_device(struct tick_device *td, else tick_do_timer_cpu = TICK_DO_TIMER_NONE; tick_next_period = ktime_get(); - tick_period = ktime_set(0, NSEC_PER_SEC / HZ); + tick_period = NSEC_PER_SEC / HZ; } /* diff --git a/kernel/time/tick-oneshot.c b/kernel/time/tick-oneshot.c index b51344652330..6b009c207671 100644 --- a/kernel/time/tick-oneshot.c +++ b/kernel/time/tick-oneshot.c @@ -28,7 +28,7 @@ int tick_program_event(ktime_t expires, int force) { struct clock_event_device *dev = __this_cpu_read(tick_cpu_device.evtdev); - if (unlikely(expires.tv64 == KTIME_MAX)) { + if (unlikely(expires == KTIME_MAX)) { /* * We don't need the clock event device any more, stop it. */ diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 71496a20e670..fc6f740d0277 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -58,21 +58,21 @@ static void tick_do_update_jiffies64(ktime_t now) * Do a quick check without holding jiffies_lock: */ delta = ktime_sub(now, last_jiffies_update); - if (delta.tv64 < tick_period.tv64) + if (delta < tick_period) return; /* Reevaluate with jiffies_lock held */ write_seqlock(&jiffies_lock); delta = ktime_sub(now, last_jiffies_update); - if (delta.tv64 >= tick_period.tv64) { + if (delta >= tick_period) { delta = ktime_sub(delta, tick_period); last_jiffies_update = ktime_add(last_jiffies_update, tick_period); /* Slow path for long timeouts */ - if (unlikely(delta.tv64 >= tick_period.tv64)) { + if (unlikely(delta >= tick_period)) { s64 incr = ktime_to_ns(tick_period); ticks = ktime_divns(delta, incr); @@ -101,7 +101,7 @@ static ktime_t tick_init_jiffy_update(void) write_seqlock(&jiffies_lock); /* Did we start the jiffies update yet ? */ - if (last_jiffies_update.tv64 == 0) + if (last_jiffies_update == 0) last_jiffies_update = tick_next_period; period = last_jiffies_update; write_sequnlock(&jiffies_lock); @@ -669,7 +669,7 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, /* Read jiffies and the time when jiffies were updated last */ do { seq = read_seqbegin(&jiffies_lock); - basemono = last_jiffies_update.tv64; + basemono = last_jiffies_update; basejiff = jiffies; } while (read_seqretry(&jiffies_lock, seq)); ts->last_jiffies = basejiff; @@ -697,7 +697,7 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, */ delta = next_tick - basemono; if (delta <= (u64)TICK_NSEC) { - tick.tv64 = 0; + tick = 0; /* * Tell the timer code that the base is not idle, i.e. undo @@ -725,6 +725,11 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, */ if (delta == 0) { tick_nohz_restart(ts, now); + /* + * Make sure next tick stop doesn't get fooled by past + * clock deadline + */ + ts->next_tick = 0; goto out; } } @@ -764,10 +769,10 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, expires = KTIME_MAX; expires = min_t(u64, expires, next_tick); - tick.tv64 = expires; + tick = expires; /* Skip reprogram of event if its not changed */ - if (ts->tick_stopped && (expires == dev->next_event.tv64)) + if (ts->tick_stopped && (expires == ts->next_tick)) goto out; /* @@ -787,6 +792,8 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, trace_tick_stop(1, TICK_DEP_MASK_NONE); } + ts->next_tick = tick; + /* * If the expiration time == KTIME_MAX, then we simply stop * the tick timer. @@ -802,7 +809,10 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, else tick_program_event(tick, 1); out: - /* Update the estimated sleep length */ + /* + * Update the estimated sleep length until the next timer + * (not only the tick). + */ ts->sleep_length = ktime_sub(dev->next_event, now); return tick; } @@ -864,7 +874,7 @@ static bool can_stop_idle_tick(int cpu, struct tick_sched *ts) } if (unlikely(ts->nohz_mode == NOHZ_MODE_INACTIVE)) { - ts->sleep_length = (ktime_t) { .tv64 = NSEC_PER_SEC/HZ }; + ts->sleep_length = NSEC_PER_SEC / HZ; return false; } @@ -914,7 +924,7 @@ static void __tick_nohz_idle_enter(struct tick_sched *ts) ts->idle_calls++; expires = tick_nohz_stop_sched_tick(ts, now, cpu); - if (expires.tv64 > 0LL) { + if (expires > 0LL) { ts->idle_sleeps++; ts->idle_expires = expires; } @@ -1051,7 +1061,7 @@ static void tick_nohz_handler(struct clock_event_device *dev) struct pt_regs *regs = get_irq_regs(); ktime_t now = ktime_get(); - dev->next_event.tv64 = KTIME_MAX; + dev->next_event = KTIME_MAX; tick_sched_do_timer(now); tick_sched_handle(ts, regs); diff --git a/kernel/time/tick-sched.h b/kernel/time/tick-sched.h index bf38226e5c17..075444e3d48e 100644 --- a/kernel/time/tick-sched.h +++ b/kernel/time/tick-sched.h @@ -27,6 +27,7 @@ enum tick_nohz_mode { * timer is modified for nohz sleeps. This is necessary * to resume the tick timer operation in the timeline * when the CPU returns from nohz sleep. + * @next_tick: Next tick to be fired when in dynticks mode. * @tick_stopped: Indicator that the idle tick has been stopped * @idle_jiffies: jiffies at the entry to idle for idle time accounting * @idle_calls: Total number of idle calls @@ -44,6 +45,7 @@ struct tick_sched { unsigned long check_clocks; enum tick_nohz_mode nohz_mode; ktime_t last_tick; + ktime_t next_tick; int inidle; int tick_stopped; unsigned long idle_jiffies; diff --git a/kernel/time/time.c b/kernel/time/time.c index bd62fb8e8e77..a3a9a8a029dc 100644 --- a/kernel/time/time.c +++ b/kernel/time/time.c @@ -38,7 +38,7 @@ #include <linux/math64.h> #include <linux/ptrace.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <asm/unistd.h> #include <generated/timeconst.h> diff --git a/kernel/time/timecounter.c b/kernel/time/timecounter.c index 4687b3104bae..8afd78932bdf 100644 --- a/kernel/time/timecounter.c +++ b/kernel/time/timecounter.c @@ -43,7 +43,7 @@ EXPORT_SYMBOL_GPL(timecounter_init); */ static u64 timecounter_read_delta(struct timecounter *tc) { - cycle_t cycle_now, cycle_delta; + u64 cycle_now, cycle_delta; u64 ns_offset; /* read cycle counter: */ @@ -80,7 +80,7 @@ EXPORT_SYMBOL_GPL(timecounter_read); * time previous to the time stored in the cycle counter. */ static u64 cc_cyc2ns_backwards(const struct cyclecounter *cc, - cycle_t cycles, u64 mask, u64 frac) + u64 cycles, u64 mask, u64 frac) { u64 ns = (u64) cycles; @@ -90,7 +90,7 @@ static u64 cc_cyc2ns_backwards(const struct cyclecounter *cc, } u64 timecounter_cyc2time(struct timecounter *tc, - cycle_t cycle_tstamp) + u64 cycle_tstamp) { u64 delta = (cycle_tstamp - tc->cycle_last) & tc->cc->mask; u64 nsec = tc->nsec, frac = tc->frac; diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index da233cdf89b0..db087d7e106d 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -104,7 +104,7 @@ static void tk_set_wall_to_mono(struct timekeeper *tk, struct timespec64 wtm) */ set_normalized_timespec64(&tmp, -tk->wall_to_monotonic.tv_sec, -tk->wall_to_monotonic.tv_nsec); - WARN_ON_ONCE(tk->offs_real.tv64 != timespec64_to_ktime(tmp).tv64); + WARN_ON_ONCE(tk->offs_real != timespec64_to_ktime(tmp)); tk->wall_to_monotonic = wtm; set_normalized_timespec64(&tmp, -wtm.tv_sec, -wtm.tv_nsec); tk->offs_real = timespec64_to_ktime(tmp); @@ -119,10 +119,10 @@ static inline void tk_update_sleep_time(struct timekeeper *tk, ktime_t delta) #ifdef CONFIG_DEBUG_TIMEKEEPING #define WARNING_FREQ (HZ*300) /* 5 minute rate-limiting */ -static void timekeeping_check_update(struct timekeeper *tk, cycle_t offset) +static void timekeeping_check_update(struct timekeeper *tk, u64 offset) { - cycle_t max_cycles = tk->tkr_mono.clock->max_cycles; + u64 max_cycles = tk->tkr_mono.clock->max_cycles; const char *name = tk->tkr_mono.clock->name; if (offset > max_cycles) { @@ -158,10 +158,10 @@ static void timekeeping_check_update(struct timekeeper *tk, cycle_t offset) } } -static inline cycle_t timekeeping_get_delta(struct tk_read_base *tkr) +static inline u64 timekeeping_get_delta(struct tk_read_base *tkr) { struct timekeeper *tk = &tk_core.timekeeper; - cycle_t now, last, mask, max, delta; + u64 now, last, mask, max, delta; unsigned int seq; /* @@ -199,12 +199,12 @@ static inline cycle_t timekeeping_get_delta(struct tk_read_base *tkr) return delta; } #else -static inline void timekeeping_check_update(struct timekeeper *tk, cycle_t offset) +static inline void timekeeping_check_update(struct timekeeper *tk, u64 offset) { } -static inline cycle_t timekeeping_get_delta(struct tk_read_base *tkr) +static inline u64 timekeeping_get_delta(struct tk_read_base *tkr) { - cycle_t cycle_now, delta; + u64 cycle_now, delta; /* read clocksource */ cycle_now = tkr->read(tkr->clock); @@ -229,7 +229,7 @@ static inline cycle_t timekeeping_get_delta(struct tk_read_base *tkr) */ static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock) { - cycle_t interval; + u64 interval; u64 tmp, ntpinterval; struct clocksource *old_clock; @@ -254,7 +254,7 @@ static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock) if (tmp == 0) tmp = 1; - interval = (cycle_t) tmp; + interval = (u64) tmp; tk->cycle_interval = interval; /* Go back from cycles -> shifted ns */ @@ -298,8 +298,7 @@ u32 (*arch_gettimeoffset)(void) = default_arch_gettimeoffset; static inline u32 arch_gettimeoffset(void) { return 0; } #endif -static inline u64 timekeeping_delta_to_ns(struct tk_read_base *tkr, - cycle_t delta) +static inline u64 timekeeping_delta_to_ns(struct tk_read_base *tkr, u64 delta) { u64 nsec; @@ -312,16 +311,15 @@ static inline u64 timekeeping_delta_to_ns(struct tk_read_base *tkr, static inline u64 timekeeping_get_ns(struct tk_read_base *tkr) { - cycle_t delta; + u64 delta; delta = timekeeping_get_delta(tkr); return timekeeping_delta_to_ns(tkr, delta); } -static inline u64 timekeeping_cycles_to_ns(struct tk_read_base *tkr, - cycle_t cycles) +static inline u64 timekeeping_cycles_to_ns(struct tk_read_base *tkr, u64 cycles) { - cycle_t delta; + u64 delta; /* calculate the delta since the last update_wall_time */ delta = clocksource_delta(cycles, tkr->cycle_last, tkr->mask); @@ -454,9 +452,9 @@ u64 notrace ktime_get_boot_fast_ns(void) EXPORT_SYMBOL_GPL(ktime_get_boot_fast_ns); /* Suspend-time cycles value for halted fast timekeeper. */ -static cycle_t cycles_at_suspend; +static u64 cycles_at_suspend; -static cycle_t dummy_clock_read(struct clocksource *cs) +static u64 dummy_clock_read(struct clocksource *cs) { return cycles_at_suspend; } @@ -573,7 +571,7 @@ EXPORT_SYMBOL_GPL(pvclock_gtod_unregister_notifier); static inline void tk_update_leap_state(struct timekeeper *tk) { tk->next_leap_ktime = ntp_get_next_leap(); - if (tk->next_leap_ktime.tv64 != KTIME_MAX) + if (tk->next_leap_ktime != KTIME_MAX) /* Convert to monotonic time */ tk->next_leap_ktime = ktime_sub(tk->next_leap_ktime, tk->offs_real); } @@ -650,7 +648,7 @@ static void timekeeping_update(struct timekeeper *tk, unsigned int action) static void timekeeping_forward_now(struct timekeeper *tk) { struct clocksource *clock = tk->tkr_mono.clock; - cycle_t cycle_now, delta; + u64 cycle_now, delta; u64 nsec; cycle_now = tk->tkr_mono.read(clock); @@ -923,7 +921,7 @@ void ktime_get_snapshot(struct system_time_snapshot *systime_snapshot) ktime_t base_real; u64 nsec_raw; u64 nsec_real; - cycle_t now; + u64 now; WARN_ON_ONCE(timekeeping_suspended); @@ -982,8 +980,8 @@ static int scale64_check_overflow(u64 mult, u64 div, u64 *base) * interval is partial_history_cycles. */ static int adjust_historical_crosststamp(struct system_time_snapshot *history, - cycle_t partial_history_cycles, - cycle_t total_history_cycles, + u64 partial_history_cycles, + u64 total_history_cycles, bool discontinuity, struct system_device_crosststamp *ts) { @@ -1047,7 +1045,7 @@ static int adjust_historical_crosststamp(struct system_time_snapshot *history, /* * cycle_between - true if test occurs chronologically between before and after */ -static bool cycle_between(cycle_t before, cycle_t test, cycle_t after) +static bool cycle_between(u64 before, u64 test, u64 after) { if (test > before && test < after) return true; @@ -1077,7 +1075,7 @@ int get_device_system_crosststamp(int (*get_time_fn) { struct system_counterval_t system_counterval; struct timekeeper *tk = &tk_core.timekeeper; - cycle_t cycles, now, interval_start; + u64 cycles, now, interval_start; unsigned int clock_was_set_seq = 0; ktime_t base_real, base_raw; u64 nsec_real, nsec_raw; @@ -1138,7 +1136,7 @@ int get_device_system_crosststamp(int (*get_time_fn) * current interval */ if (do_interp) { - cycle_t partial_history_cycles, total_history_cycles; + u64 partial_history_cycles, total_history_cycles; bool discontinuity; /* @@ -1644,7 +1642,7 @@ void timekeeping_resume(void) struct clocksource *clock = tk->tkr_mono.clock; unsigned long flags; struct timespec64 ts_new, ts_delta; - cycle_t cycle_now; + u64 cycle_now; sleeptime_injected = false; read_persistent_clock64(&ts_new); @@ -2010,11 +2008,10 @@ static inline unsigned int accumulate_nsecs_to_secs(struct timekeeper *tk) * * Returns the unconsumed cycles. */ -static cycle_t logarithmic_accumulation(struct timekeeper *tk, cycle_t offset, - u32 shift, - unsigned int *clock_set) +static u64 logarithmic_accumulation(struct timekeeper *tk, u64 offset, + u32 shift, unsigned int *clock_set) { - cycle_t interval = tk->cycle_interval << shift; + u64 interval = tk->cycle_interval << shift; u64 raw_nsecs; /* If the offset is smaller than a shifted interval, do nothing */ @@ -2055,7 +2052,7 @@ void update_wall_time(void) { struct timekeeper *real_tk = &tk_core.timekeeper; struct timekeeper *tk = &shadow_timekeeper; - cycle_t offset; + u64 offset; int shift = 0, maxshift; unsigned int clock_set = 0; unsigned long flags; @@ -2253,7 +2250,7 @@ ktime_t ktime_get_update_offsets_now(unsigned int *cwsseq, ktime_t *offs_real, } /* Handle leapsecond insertion adjustments */ - if (unlikely(base.tv64 >= tk->next_leap_ktime.tv64)) + if (unlikely(base >= tk->next_leap_ktime)) *offs_real = ktime_sub(tk->offs_real, ktime_set(1, 0)); } while (read_seqcount_retry(&tk_core.seq, seq)); diff --git a/kernel/time/timekeeping_internal.h b/kernel/time/timekeeping_internal.h index 5be76270ec4a..9a18f121f399 100644 --- a/kernel/time/timekeeping_internal.h +++ b/kernel/time/timekeeping_internal.h @@ -13,9 +13,9 @@ extern void tk_debug_account_sleep_time(struct timespec64 *t); #endif #ifdef CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE -static inline cycle_t clocksource_delta(cycle_t now, cycle_t last, cycle_t mask) +static inline u64 clocksource_delta(u64 now, u64 last, u64 mask) { - cycle_t ret = (now - last) & mask; + u64 ret = (now - last) & mask; /* * Prevent time going backwards by checking the MSB of mask in @@ -24,7 +24,7 @@ static inline cycle_t clocksource_delta(cycle_t now, cycle_t last, cycle_t mask) return ret & ~(mask >> 1) ? 0 : ret; } #else -static inline cycle_t clocksource_delta(cycle_t now, cycle_t last, cycle_t mask) +static inline u64 clocksource_delta(u64 now, u64 last, u64 mask) { return (now - last) & mask; } diff --git a/kernel/time/timer.c b/kernel/time/timer.c index ea4fbf8477a9..ec33a6933eae 100644 --- a/kernel/time/timer.c +++ b/kernel/time/timer.c @@ -43,7 +43,7 @@ #include <linux/slab.h> #include <linux/compat.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <asm/unistd.h> #include <asm/div64.h> #include <asm/timex.h> diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c index ba7d8b288bb3..afe6cd1944fc 100644 --- a/kernel/time/timer_list.c +++ b/kernel/time/timer_list.c @@ -17,7 +17,7 @@ #include <linux/seq_file.h> #include <linux/kallsyms.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include "tick-internal.h" diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c index 087204c733eb..afddded947df 100644 --- a/kernel/time/timer_stats.c +++ b/kernel/time/timer_stats.c @@ -43,7 +43,7 @@ #include <linux/seq_file.h> #include <linux/kallsyms.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> /* * This is our basic unit of interest: a timer expiry event identified |