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-rw-r--r--include/linux/hrtimer.h41
1 files changed, 17 insertions, 24 deletions
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 6401c31d6add..93830158348e 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -34,15 +34,7 @@ enum hrtimer_restart {
34 HRTIMER_RESTART, 34 HRTIMER_RESTART,
35}; 35};
36 36
37/* 37#define HRTIMER_INACTIVE ((void *)1UL)
38 * Timer states:
39 */
40enum hrtimer_state {
41 HRTIMER_INACTIVE, /* Timer is inactive */
42 HRTIMER_EXPIRED, /* Timer is expired */
43 HRTIMER_RUNNING, /* Timer is running the callback function */
44 HRTIMER_PENDING, /* Timer is pending */
45};
46 38
47struct hrtimer_base; 39struct hrtimer_base;
48 40
@@ -53,9 +45,7 @@ struct hrtimer_base;
53 * @expires: the absolute expiry time in the hrtimers internal 45 * @expires: the absolute expiry time in the hrtimers internal
54 * representation. The time is related to the clock on 46 * representation. The time is related to the clock on
55 * which the timer is based. 47 * which the timer is based.
56 * @state: state of the timer
57 * @function: timer expiry callback function 48 * @function: timer expiry callback function
58 * @data: argument for the callback function
59 * @base: pointer to the timer base (per cpu and per clock) 49 * @base: pointer to the timer base (per cpu and per clock)
60 * 50 *
61 * The hrtimer structure must be initialized by init_hrtimer_#CLOCKTYPE() 51 * The hrtimer structure must be initialized by init_hrtimer_#CLOCKTYPE()
@@ -63,23 +53,23 @@ struct hrtimer_base;
63struct hrtimer { 53struct hrtimer {
64 struct rb_node node; 54 struct rb_node node;
65 ktime_t expires; 55 ktime_t expires;
66 enum hrtimer_state state; 56 int (*function)(struct hrtimer *);
67 int (*function)(void *);
68 void *data;
69 struct hrtimer_base *base; 57 struct hrtimer_base *base;
70}; 58};
71 59
72/** 60/**
73 * struct hrtimer_base - the timer base for a specific clock 61 * struct hrtimer_base - the timer base for a specific clock
74 * 62 *
75 * @index: clock type index for per_cpu support when moving a timer 63 * @index: clock type index for per_cpu support when moving a timer
76 * to a base on another cpu. 64 * to a base on another cpu.
77 * @lock: lock protecting the base and associated timers 65 * @lock: lock protecting the base and associated timers
78 * @active: red black tree root node for the active timers 66 * @active: red black tree root node for the active timers
79 * @first: pointer to the timer node which expires first 67 * @first: pointer to the timer node which expires first
80 * @resolution: the resolution of the clock, in nanoseconds 68 * @resolution: the resolution of the clock, in nanoseconds
81 * @get_time: function to retrieve the current time of the clock 69 * @get_time: function to retrieve the current time of the clock
82 * @curr_timer: the timer which is executing a callback right now 70 * @get_sofirq_time: function to retrieve the current time from the softirq
71 * @curr_timer: the timer which is executing a callback right now
72 * @softirq_time: the time when running the hrtimer queue in the softirq
83 */ 73 */
84struct hrtimer_base { 74struct hrtimer_base {
85 clockid_t index; 75 clockid_t index;
@@ -88,7 +78,9 @@ struct hrtimer_base {
88 struct rb_node *first; 78 struct rb_node *first;
89 ktime_t resolution; 79 ktime_t resolution;
90 ktime_t (*get_time)(void); 80 ktime_t (*get_time)(void);
81 ktime_t (*get_softirq_time)(void);
91 struct hrtimer *curr_timer; 82 struct hrtimer *curr_timer;
83 ktime_t softirq_time;
92}; 84};
93 85
94/* 86/*
@@ -122,11 +114,12 @@ extern ktime_t hrtimer_get_next_event(void);
122 114
123static inline int hrtimer_active(const struct hrtimer *timer) 115static inline int hrtimer_active(const struct hrtimer *timer)
124{ 116{
125 return timer->state == HRTIMER_PENDING; 117 return timer->node.rb_parent != HRTIMER_INACTIVE;
126} 118}
127 119
128/* Forward a hrtimer so it expires after now: */ 120/* Forward a hrtimer so it expires after now: */
129extern unsigned long hrtimer_forward(struct hrtimer *timer, ktime_t interval); 121extern unsigned long
122hrtimer_forward(struct hrtimer *timer, ktime_t now, ktime_t interval);
130 123
131/* Precise sleep: */ 124/* Precise sleep: */
132extern long hrtimer_nanosleep(struct timespec *rqtp, 125extern long hrtimer_nanosleep(struct timespec *rqtp,