[PATCH 12/14] hrtimer: don't emulate notifier call to initialize timer base

From: Viresh Kumar
Date: Wed Mar 26 2014 - 07:23:50 EST


In hrtimers_init() we need to call init_hrtimers_cpu() for boot CPU. For this,
currently we are emulating a call to hotplug notifier. Probably this was done
initially to get rid of code redundancy. But this sequence always called a
single routine, i.e. init_hrtimers_cpu(), and so calling that routine directly
would be better. This would get rid of emulating a notifier call, few typecasts
and the extra steps we are doing in notifier callback.

So, this patch calls init_hrtimers_cpu() directly from hrtimers_init().

Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
---
kernel/hrtimer.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index f14d861..39dbdbd 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -1756,8 +1756,7 @@ static struct notifier_block hrtimers_nb = {

void __init hrtimers_init(void)
{
- hrtimer_cpu_notify(&hrtimers_nb, (unsigned long)CPU_UP_PREPARE,
- (void *)(long)smp_processor_id());
+ init_hrtimers_cpu(smp_processor_id());
register_cpu_notifier(&hrtimers_nb);
#ifdef CONFIG_HIGH_RES_TIMERS
open_softirq(HRTIMER_SOFTIRQ, run_hrtimer_softirq);
--
1.7.12.rc2.18.g61b472e

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/