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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-15 19:06:19 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-15 19:06:19 +0200 |
| commit | 19035e5b5d1e3127b4925d86f6a77964f91f2c3c (patch) | |
| tree | c9e7e9073970176a5b0970da715cb6430c3c9069 /kernel/time | |
| parent | Merge branch 'timers-for-linus-clockevents' of git://git.kernel.org/pub/scm/l... (diff) | |
| parent | timers: Logic to move non pinned timers (diff) | |
| download | linux-19035e5b5d1e3127b4925d86f6a77964f91f2c3c.tar.xz linux-19035e5b5d1e3127b4925d86f6a77964f91f2c3c.zip | |
Merge branch 'timers-for-linus-migration' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus-migration' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
timers: Logic to move non pinned timers
timers: /proc/sys sysctl hook to enable timer migration
timers: Identifying the existing pinned timers
timers: Framework for identifying pinned timers
timers: allow deferrable timers for intervals tv2-tv5 to be deferred
Fix up conflicts in kernel/sched.c and kernel/timer.c manually
Diffstat (limited to 'kernel/time')
| -rw-r--r-- | kernel/time/clockevents.c | 12 | ||||
| -rw-r--r-- | kernel/time/tick-sched.c | 7 |
2 files changed, 16 insertions, 3 deletions
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c index 3948fa644a2d..1ad6dd461119 100644 --- a/kernel/time/clockevents.c +++ b/kernel/time/clockevents.c @@ -18,6 +18,7 @@ #include <linux/notifier.h> #include <linux/smp.h> #include <linux/sysdev.h> +#include <linux/tick.h> /* The registered clock event devices */ static LIST_HEAD(clockevent_devices); @@ -253,4 +254,15 @@ void clockevents_notify(unsigned long reason, void *arg) spin_unlock(&clockevents_lock); } EXPORT_SYMBOL_GPL(clockevents_notify); + +ktime_t clockevents_get_next_event(int cpu) +{ + struct tick_device *td; + struct clock_event_device *dev; + + td = &per_cpu(tick_cpu_device, cpu); + dev = td->evtdev; + + return dev->next_event; +} #endif diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index d3f1ef4d5cbe..2aff39c6f10c 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -349,7 +349,7 @@ void tick_nohz_stop_sched_tick(int inidle) if (ts->nohz_mode == NOHZ_MODE_HIGHRES) { hrtimer_start(&ts->sched_timer, expires, - HRTIMER_MODE_ABS); + HRTIMER_MODE_ABS_PINNED); /* Check, if the timer was already in the past */ if (hrtimer_active(&ts->sched_timer)) goto out; @@ -395,7 +395,7 @@ static void tick_nohz_restart(struct tick_sched *ts, ktime_t now) if (ts->nohz_mode == NOHZ_MODE_HIGHRES) { hrtimer_start_expires(&ts->sched_timer, - HRTIMER_MODE_ABS); + HRTIMER_MODE_ABS_PINNED); /* Check, if the timer was already in the past */ if (hrtimer_active(&ts->sched_timer)) break; @@ -698,7 +698,8 @@ void tick_setup_sched_timer(void) for (;;) { hrtimer_forward(&ts->sched_timer, now, tick_period); - hrtimer_start_expires(&ts->sched_timer, HRTIMER_MODE_ABS); + hrtimer_start_expires(&ts->sched_timer, + HRTIMER_MODE_ABS_PINNED); /* Check, if the timer was already in the past */ if (hrtimer_active(&ts->sched_timer)) break; |