diff options
Diffstat (limited to 'kernel/time')
| -rw-r--r-- | kernel/time/clockevents.c | 10 | ||||
| -rw-r--r-- | kernel/time/sched_clock.c | 4 | ||||
| -rw-r--r-- | kernel/time/tick-sched.c | 10 |
3 files changed, 19 insertions, 5 deletions
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c index ad362c260ef4..9c94c19f1305 100644 --- a/kernel/time/clockevents.c +++ b/kernel/time/clockevents.c @@ -146,7 +146,8 @@ static int clockevents_increase_min_delta(struct clock_event_device *dev) { /* Nothing to do if we already reached the limit */ if (dev->min_delta_ns >= MIN_DELTA_LIMIT) { - printk(KERN_WARNING "CE: Reprogramming failure. Giving up\n"); + printk_deferred(KERN_WARNING + "CE: Reprogramming failure. Giving up\n"); dev->next_event.tv64 = KTIME_MAX; return -ETIME; } @@ -159,9 +160,10 @@ static int clockevents_increase_min_delta(struct clock_event_device *dev) if (dev->min_delta_ns > MIN_DELTA_LIMIT) dev->min_delta_ns = MIN_DELTA_LIMIT; - printk(KERN_WARNING "CE: %s increased min_delta_ns to %llu nsec\n", - dev->name ? dev->name : "?", - (unsigned long long) dev->min_delta_ns); + printk_deferred(KERN_WARNING + "CE: %s increased min_delta_ns to %llu nsec\n", + dev->name ? dev->name : "?", + (unsigned long long) dev->min_delta_ns); return 0; } diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c index 445106d2c729..01d2d15aa662 100644 --- a/kernel/time/sched_clock.c +++ b/kernel/time/sched_clock.c @@ -191,7 +191,8 @@ void __init sched_clock_postinit(void) static int sched_clock_suspend(void) { - sched_clock_poll(&sched_clock_timer); + update_sched_clock(); + hrtimer_cancel(&sched_clock_timer); cd.suspended = true; return 0; } @@ -199,6 +200,7 @@ static int sched_clock_suspend(void) static void sched_clock_resume(void) { cd.epoch_cyc = read_sched_clock(); + hrtimer_start(&sched_clock_timer, cd.wrap_kt, HRTIMER_MODE_REL); cd.suspended = false; } diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 3d63944a3eca..99aa6ee3908f 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -154,6 +154,7 @@ static void tick_sched_handle(struct tick_sched *ts, struct pt_regs *regs) #ifdef CONFIG_NO_HZ_FULL cpumask_var_t tick_nohz_full_mask; +cpumask_var_t housekeeping_mask; bool tick_nohz_full_running; static bool can_stop_full_tick(void) @@ -283,6 +284,7 @@ static int __init tick_nohz_full_setup(char *str) int cpu; alloc_bootmem_cpumask_var(&tick_nohz_full_mask); + alloc_bootmem_cpumask_var(&housekeeping_mask); if (cpulist_parse(str, tick_nohz_full_mask) < 0) { pr_warning("NOHZ: Incorrect nohz_full cpumask\n"); return 1; @@ -293,6 +295,8 @@ static int __init tick_nohz_full_setup(char *str) pr_warning("NO_HZ: Clearing %d from nohz_full range for timekeeping\n", cpu); cpumask_clear_cpu(cpu, tick_nohz_full_mask); } + cpumask_andnot(housekeeping_mask, + cpu_possible_mask, tick_nohz_full_mask); tick_nohz_full_running = true; return 1; @@ -334,9 +338,15 @@ static int tick_nohz_init_all(void) pr_err("NO_HZ: Can't allocate full dynticks cpumask\n"); return err; } + if (!alloc_cpumask_var(&housekeeping_mask, GFP_KERNEL)) { + pr_err("NO_HZ: Can't allocate not-full dynticks cpumask\n"); + return err; + } err = 0; cpumask_setall(tick_nohz_full_mask); cpumask_clear_cpu(smp_processor_id(), tick_nohz_full_mask); + cpumask_clear(housekeeping_mask); + cpumask_set_cpu(smp_processor_id(), housekeeping_mask); tick_nohz_full_running = true; #endif return err; |