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authorThomas Gleixner <tglx@linutronix.de>2008-10-22 09:48:06 +0200
committerThomas Gleixner <tglx@linutronix.de>2008-10-22 09:48:06 +0200
commit268a3dcfea2077fca60d3715caa5c96f9b5e6ea7 (patch)
treec2232774508424e677e27f296090a68c775e4669 /kernel/time
parentc4bd822e7b12a9008241d76db45b665f2fef180c (diff)
parent592aa999d6a272856c9bfbdaac0cfba1bb37c24c (diff)
Merge branch 'timers/range-hrtimers' into v28-range-hrtimers-for-linus-v2
Conflicts: kernel/time/tick-sched.c Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/time')
-rw-r--r--kernel/time/ntp.c3
-rw-r--r--kernel/time/tick-sched.c25
-rw-r--r--kernel/time/timer_list.c8
3 files changed, 19 insertions, 17 deletions
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 1a20715bfd6e..8ff15e5d486b 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -142,8 +142,7 @@ static enum hrtimer_restart ntp_leap_second(struct hrtimer *timer)
time_state = TIME_OOP;
printk(KERN_NOTICE "Clock: "
"inserting leap second 23:59:60 UTC\n");
- leap_timer.expires = ktime_add_ns(leap_timer.expires,
- NSEC_PER_SEC);
+ hrtimer_add_expires_ns(&leap_timer, NSEC_PER_SEC);
res = HRTIMER_RESTART;
break;
case TIME_DEL:
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 727c1ae0517a..5bbb1044f847 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -300,7 +300,7 @@ void tick_nohz_stop_sched_tick(int inidle)
goto out;
}
- ts->idle_tick = ts->sched_timer.expires;
+ ts->idle_tick = hrtimer_get_expires(&ts->sched_timer);
ts->tick_stopped = 1;
ts->idle_jiffies = last_jiffies;
rcu_enter_nohz();
@@ -380,21 +380,21 @@ ktime_t tick_nohz_get_sleep_length(void)
static void tick_nohz_restart(struct tick_sched *ts, ktime_t now)
{
hrtimer_cancel(&ts->sched_timer);
- ts->sched_timer.expires = ts->idle_tick;
+ hrtimer_set_expires(&ts->sched_timer, ts->idle_tick);
while (1) {
/* Forward the time to expire in the future */
hrtimer_forward(&ts->sched_timer, now, tick_period);
if (ts->nohz_mode == NOHZ_MODE_HIGHRES) {
- hrtimer_start(&ts->sched_timer,
- ts->sched_timer.expires,
+ hrtimer_start_expires(&ts->sched_timer,
HRTIMER_MODE_ABS);
/* Check, if the timer was already in the past */
if (hrtimer_active(&ts->sched_timer))
break;
} else {
- if (!tick_program_event(ts->sched_timer.expires, 0))
+ if (!tick_program_event(
+ hrtimer_get_expires(&ts->sched_timer), 0))
break;
}
/* Update jiffies and reread time */
@@ -456,14 +456,16 @@ void tick_nohz_restart_sched_tick(void)
*/
ts->tick_stopped = 0;
ts->idle_exittime = now;
+
tick_nohz_restart(ts, now);
+
local_irq_enable();
}
static int tick_nohz_reprogram(struct tick_sched *ts, ktime_t now)
{
hrtimer_forward(&ts->sched_timer, now, tick_period);
- return tick_program_event(ts->sched_timer.expires, 0);
+ return tick_program_event(hrtimer_get_expires(&ts->sched_timer), 0);
}
/*
@@ -542,7 +544,7 @@ static void tick_nohz_switch_to_nohz(void)
next = tick_init_jiffy_update();
for (;;) {
- ts->sched_timer.expires = next;
+ hrtimer_set_expires(&ts->sched_timer, next);
if (!tick_program_event(next, 0))
break;
next = ktime_add(next, tick_period);
@@ -577,7 +579,7 @@ static void tick_nohz_kick_tick(int cpu)
* already reached or less/equal than the tick period.
*/
now = ktime_get();
- delta = ktime_sub(ts->sched_timer.expires, now);
+ delta = ktime_sub(hrtimer_get_expires(&ts->sched_timer), now);
if (delta.tv64 <= tick_period.tv64)
return;
@@ -678,16 +680,15 @@ void tick_setup_sched_timer(void)
ts->sched_timer.cb_mode = HRTIMER_CB_IRQSAFE_PERCPU;
/* Get the next period (per cpu) */
- ts->sched_timer.expires = tick_init_jiffy_update();
+ hrtimer_set_expires(&ts->sched_timer, tick_init_jiffy_update());
offset = ktime_to_ns(tick_period) >> 1;
do_div(offset, num_possible_cpus());
offset *= smp_processor_id();
- ts->sched_timer.expires = ktime_add_ns(ts->sched_timer.expires, offset);
+ hrtimer_add_expires_ns(&ts->sched_timer, offset);
for (;;) {
hrtimer_forward(&ts->sched_timer, now, tick_period);
- hrtimer_start(&ts->sched_timer, ts->sched_timer.expires,
- HRTIMER_MODE_ABS);
+ hrtimer_start_expires(&ts->sched_timer, HRTIMER_MODE_ABS);
/* Check, if the timer was already in the past */
if (hrtimer_active(&ts->sched_timer))
break;
diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
index f6426911e35a..a999b92a1277 100644
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -66,9 +66,11 @@ print_timer(struct seq_file *m, struct hrtimer *taddr, struct hrtimer *timer,
SEQ_printf(m, ", %s/%d", tmp, timer->start_pid);
#endif
SEQ_printf(m, "\n");
- SEQ_printf(m, " # expires at %Lu nsecs [in %Ld nsecs]\n",
- (unsigned long long)ktime_to_ns(timer->expires),
- (long long)(ktime_to_ns(timer->expires) - now));
+ SEQ_printf(m, " # expires at %Lu-%Lu nsecs [in %Ld to %Ld nsecs]\n",
+ (unsigned long long)ktime_to_ns(hrtimer_get_softexpires(timer)),
+ (unsigned long long)ktime_to_ns(hrtimer_get_expires(timer)),
+ (long long)(ktime_to_ns(hrtimer_get_softexpires(timer)) - now),
+ (long long)(ktime_to_ns(hrtimer_get_expires(timer)) - now));
}
static void