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time: timer cleanups

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Small cleanups to tick-related code. Wrong preempt count is followed
by BUG(), so it is hardly KERN_WARNING.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Cc: john stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Pavel Machek 2008-01-30 13:30:00 +01:00 • committed by Ingo Molnar
parent a6fa8e5a61
commit 4c9dc64122
2 changed files with 3 additions and 3 deletions
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4
kernel/time/tick-sched.c
View file

@ -296,7 +296,7 @@ void tick_nohz_stop_sched_tick(void)
/* Check, if the timer was already in the past */ /* Check, if the timer was already in the past */
if (hrtimer_active(&ts->sched_timer)) if (hrtimer_active(&ts->sched_timer))
goto out; goto out;
} else if(!tick_program_event(expires, 0)) } else if (!tick_program_event(expires, 0))
goto out; goto out;
/* /*
* We are past the event already. So we crossed a * We are past the event already. So we crossed a
@ -507,7 +507,7 @@ static inline void tick_nohz_switch_to_nohz(void) { }
*/ */
#ifdef CONFIG_HIGH_RES_TIMERS #ifdef CONFIG_HIGH_RES_TIMERS
/* /*
* We rearm the timer until we get disabled by the idle code * We rearm the timer until we get disabled by the idle code.
* Called with interrupts disabled and timer->base->cpu_base->lock held. * Called with interrupts disabled and timer->base->cpu_base->lock held.
*/ */
static enum hrtimer_restart tick_sched_timer(struct hrtimer *timer) static enum hrtimer_restart tick_sched_timer(struct hrtimer *timer)

2
kernel/timer.c
View file

@ -655,7 +655,7 @@ static inline void __run_timers(struct tvec_base *base)
int preempt_count = preempt_count(); int preempt_count = preempt_count();
fn(data); fn(data);
if (preempt_count != preempt_count()) { if (preempt_count != preempt_count()) {
printk(KERN_WARNING "huh, entered %p " printk(KERN_ERR "huh, entered %p "
"with preempt_count %08x, exited" "with preempt_count %08x, exited"
" with %08x?\n", " with %08x?\n",
fn, preempt_count, fn, preempt_count,