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hrtimers: Convert hrtimers to use timerlist infrastructure

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Converts the hrtimer code to use the new timerlist infrastructure

Signed-off-by: John Stultz <john.stultz@linaro.org>
LKML Reference: <1290136329-18291-3-git-send-email-john.stultz@linaro.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
CC: Alessandro Zummo <a.zummo@towertech.it>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Richard Cochran <richardcochran@gmail.com>
This commit is contained in:
John Stultz 2010-09-20 19:19:17 -07:00
parent 9bb99b1470
commit 998adc3dda
3 changed files with 49 additions and 77 deletions
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32
include/linux/hrtimer.h
View file

@ -22,7 +22,7 @@
#include <linux/wait.h>
#include <linux/percpu.h>
#include <linux/timer.h>
#include <linux/timerqueue.h>
struct hrtimer_clock_base;
struct hrtimer_cpu_base;
@ -79,8 +79,8 @@ enum hrtimer_restart {
/**
* struct hrtimer - the basic hrtimer structure
* @node: red black tree node for time ordered insertion
* @_expires: the absolute expiry time in the hrtimers internal
* @node: timerqueue node, which also manages node.expires,
* the absolute expiry time in the hrtimers internal
* representation. The time is related to the clock on
* which the timer is based. Is setup by adding
* slack to the _softexpires value. For non range timers
@ -101,8 +101,7 @@ enum hrtimer_restart {
* The hrtimer structure must be initialized by hrtimer_init()
*/
struct hrtimer {
struct rb_node node;
ktime_t _expires;
struct timerqueue_node node;
ktime_t _softexpires;
enum hrtimer_restart (*function)(struct hrtimer *);
struct hrtimer_clock_base *base;
@ -141,8 +140,7 @@ struct hrtimer_sleeper {
struct hrtimer_clock_base {
struct hrtimer_cpu_base *cpu_base;
clockid_t index;
struct rb_root active;
struct rb_node *first;
struct timerqueue_head active;
ktime_t resolution;
ktime_t (*get_time)(void);
ktime_t softirq_time;
@ -183,43 +181,43 @@ struct hrtimer_cpu_base {
static inline void hrtimer_set_expires(struct hrtimer *timer, ktime_t time)
{
timer->_expires = time;
timer->node.expires = time;
timer->_softexpires = time;
}
static inline void hrtimer_set_expires_range(struct hrtimer *timer, ktime_t time, ktime_t delta)
{
timer->_softexpires = time;
timer->_expires = ktime_add_safe(time, delta);
timer->node.expires = ktime_add_safe(time, delta);
}
static inline void hrtimer_set_expires_range_ns(struct hrtimer *timer, ktime_t time, unsigned long delta)
{
timer->_softexpires = time;
timer->_expires = ktime_add_safe(time, ns_to_ktime(delta));
timer->node.expires = ktime_add_safe(time, ns_to_ktime(delta));
}
static inline void hrtimer_set_expires_tv64(struct hrtimer *timer, s64 tv64)
{
timer->_expires.tv64 = tv64;
timer->node.expires.tv64 = tv64;
timer->_softexpires.tv64 = tv64;
}
static inline void hrtimer_add_expires(struct hrtimer *timer, ktime_t time)
{
timer->_expires = ktime_add_safe(timer->_expires, time);
timer->node.expires = ktime_add_safe(timer->node.expires, time);
timer->_softexpires = ktime_add_safe(timer->_softexpires, time);
}
static inline void hrtimer_add_expires_ns(struct hrtimer *timer, u64 ns)
{
timer->_expires = ktime_add_ns(timer->_expires, ns);
timer->node.expires = ktime_add_ns(timer->node.expires, ns);
timer->_softexpires = ktime_add_ns(timer->_softexpires, ns);
}
static inline ktime_t hrtimer_get_expires(const struct hrtimer *timer)
{
return timer->_expires;
return timer->node.expires;
}
static inline ktime_t hrtimer_get_softexpires(const struct hrtimer *timer)
@ -229,7 +227,7 @@ static inline ktime_t hrtimer_get_softexpires(const struct hrtimer *timer)
static inline s64 hrtimer_get_expires_tv64(const struct hrtimer *timer)
{
return timer->_expires.tv64;
return timer->node.expires.tv64;
}
static inline s64 hrtimer_get_softexpires_tv64(const struct hrtimer *timer)
{
@ -238,12 +236,12 @@ static inline s64 hrtimer_get_softexpires_tv64(const struct hrtimer *timer)
static inline s64 hrtimer_get_expires_ns(const struct hrtimer *timer)
{
return ktime_to_ns(timer->_expires);
return ktime_to_ns(timer->node.expires);
}
static inline ktime_t hrtimer_expires_remaining(const struct hrtimer *timer)
{
return ktime_sub(timer->_expires, timer->base->get_time());
return ktime_sub(timer->node.expires, timer->base->get_time());
}
#ifdef CONFIG_HIGH_RES_TIMERS