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timers: Introduce timerlist infrastructure.
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1 #ifndef _LINUX_TIMERLIST_H
2 #define _LINUX_TIMERLIST_H
3
4 #include <linux/rbtree.h>
5 #include <linux/ktime.h>
6
7
8 struct timerlist_node {
9 struct rb_node node;
10 ktime_t expires;
11 };
12
13 struct timerlist_head {
14 struct rb_root head;
15 struct timerlist_node *next;
16 };
17
18
19 extern void timerlist_add(struct timerlist_head *head,
20 struct timerlist_node *node);
21 extern void timerlist_del(struct timerlist_head *head,
22 struct timerlist_node *node);
23 extern struct timerlist_node *timerlist_getnext(struct timerlist_head *head);
24 extern struct timerlist_node *timerlist_iterate_next(
25 struct timerlist_node *node);
26
27 static inline void timerlist_init(struct timerlist_node *node)
28 {
29 RB_CLEAR_NODE(&node->node);
30 }
31
32 static inline void timerlist_init_head(struct timerlist_head *head)
33 {
34 head->head = RB_ROOT;
35 head->next = NULL;
36 }
37 #endif /* _LINUX_TIMERLIST_H */