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[PATCH] hrtimers: remove state field
Remove the state field and encode this information in the rb_node similiar to normal timer. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -34,13 +34,7 @@ enum hrtimer_restart {
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HRTIMER_RESTART,
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};
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/*
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* Timer states:
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*/
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enum hrtimer_state {
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HRTIMER_INACTIVE, /* Timer is inactive */
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HRTIMER_PENDING, /* Timer is pending */
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};
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#define HRTIMER_INACTIVE ((void *)1UL)
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struct hrtimer_base;
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@ -61,7 +55,6 @@ struct hrtimer_base;
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struct hrtimer {
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struct rb_node node;
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ktime_t expires;
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enum hrtimer_state state;
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int (*function)(void *);
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void *data;
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struct hrtimer_base *base;
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@ -124,7 +117,7 @@ extern ktime_t hrtimer_get_next_event(void);
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static inline int hrtimer_active(const struct hrtimer *timer)
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{
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return timer->state == HRTIMER_PENDING;
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return timer->node.rb_parent != HRTIMER_INACTIVE;
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}
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/* Forward a hrtimer so it expires after now: */
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@ -374,8 +374,6 @@ static void enqueue_hrtimer(struct hrtimer *timer, struct hrtimer_base *base)
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rb_link_node(&timer->node, parent, link);
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rb_insert_color(&timer->node, &base->active);
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timer->state = HRTIMER_PENDING;
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if (!base->first || timer->expires.tv64 <
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rb_entry(base->first, struct hrtimer, node)->expires.tv64)
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base->first = &timer->node;
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@ -395,6 +393,7 @@ static void __remove_hrtimer(struct hrtimer *timer, struct hrtimer_base *base)
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if (base->first == &timer->node)
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base->first = rb_next(&timer->node);
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rb_erase(&timer->node, &base->active);
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timer->node.rb_parent = HRTIMER_INACTIVE;
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}
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/*
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@ -405,7 +404,6 @@ remove_hrtimer(struct hrtimer *timer, struct hrtimer_base *base)
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{
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if (hrtimer_active(timer)) {
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__remove_hrtimer(timer, base);
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timer->state = HRTIMER_INACTIVE;
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return 1;
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}
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return 0;
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@ -579,6 +577,7 @@ void hrtimer_init(struct hrtimer *timer, clockid_t clock_id,
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clock_id = CLOCK_MONOTONIC;
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timer->base = &bases[clock_id];
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timer->node.rb_parent = HRTIMER_INACTIVE;
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}
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/**
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@ -625,7 +624,6 @@ static inline void run_hrtimer_queue(struct hrtimer_base *base)
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fn = timer->function;
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data = timer->data;
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set_curr_timer(base, timer);
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timer->state = HRTIMER_INACTIVE;
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__remove_hrtimer(timer, base);
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spin_unlock_irq(&base->lock);
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@ -633,12 +631,10 @@ static inline void run_hrtimer_queue(struct hrtimer_base *base)
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spin_lock_irq(&base->lock);
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/* Another CPU has added back the timer */
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if (timer->state != HRTIMER_INACTIVE)
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continue;
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if (restart != HRTIMER_NORESTART)
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if (restart != HRTIMER_NORESTART) {
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BUG_ON(hrtimer_active(timer));
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enqueue_hrtimer(timer, base);
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}
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}
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set_curr_timer(base, NULL);
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spin_unlock_irq(&base->lock);
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