diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-06 13:42:43 -0500 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-06 13:42:43 -0500 |
commit | dda5f0a372873bca5f0b1d1866d7784dffd8b675 (patch) | |
tree | 1f745951b51ef9dcd127ca3c65ecb1d2ce4967c2 /include/linux/timerqueue.h | |
parent | 65b2074f84be2287e020839e93b4cdaaf60eb37c (diff) | |
parent | 88606e80da0e8d862a42ee19e5bb60b01b940ea7 (diff) |
Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
MAINTAINERS: Update timer related entries
timers: Use this_cpu_read
timerqueue: Make timerqueue_getnext() static inline
hrtimer: fix timerqueue conversion flub
hrtimers: Convert hrtimers to use timerlist infrastructure
timers: Fixup allmodconfig build issue
timers: Rename timerlist infrastructure to timerqueue
timers: Introduce timerlist infrastructure.
hrtimer: Remove stale comment on curr_timer
timer: Warn when del_timer_sync() is called in hardirq context
timer: Del_timer_sync() can be used in softirq context
timer: Make try_to_del_timer_sync() the same on SMP and UP
posix-timers: Annotate lock_timer()
timer: Permit statically-declared work with deferrable timers
time: Use ARRAY_SIZE macro in timecompare.c
timer: Initialize the field slack of timer_list
timer_list: Remove alignment padding on 64 bit when CONFIG_TIMER_STATS
time: Compensate for rounding on odd-frequency clocksources
Fix up trivial conflict in MAINTAINERS
Diffstat (limited to 'include/linux/timerqueue.h')
-rw-r--r-- | include/linux/timerqueue.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/include/linux/timerqueue.h b/include/linux/timerqueue.h new file mode 100644 index 000000000000..d24aabaca474 --- /dev/null +++ b/include/linux/timerqueue.h | |||
@@ -0,0 +1,50 @@ | |||
1 | #ifndef _LINUX_TIMERQUEUE_H | ||
2 | #define _LINUX_TIMERQUEUE_H | ||
3 | |||
4 | #include <linux/rbtree.h> | ||
5 | #include <linux/ktime.h> | ||
6 | |||
7 | |||
8 | struct timerqueue_node { | ||
9 | struct rb_node node; | ||
10 | ktime_t expires; | ||
11 | }; | ||
12 | |||
13 | struct timerqueue_head { | ||
14 | struct rb_root head; | ||
15 | struct timerqueue_node *next; | ||
16 | }; | ||
17 | |||
18 | |||
19 | extern void timerqueue_add(struct timerqueue_head *head, | ||
20 | struct timerqueue_node *node); | ||
21 | extern void timerqueue_del(struct timerqueue_head *head, | ||
22 | struct timerqueue_node *node); | ||
23 | extern struct timerqueue_node *timerqueue_iterate_next( | ||
24 | struct timerqueue_node *node); | ||
25 | |||
26 | /** | ||
27 | * timerqueue_getnext - Returns the timer with the earlies expiration time | ||
28 | * | ||
29 | * @head: head of timerqueue | ||
30 | * | ||
31 | * Returns a pointer to the timer node that has the | ||
32 | * earliest expiration time. | ||
33 | */ | ||
34 | static inline | ||
35 | struct timerqueue_node *timerqueue_getnext(struct timerqueue_head *head) | ||
36 | { | ||
37 | return head->next; | ||
38 | } | ||
39 | |||
40 | static inline void timerqueue_init(struct timerqueue_node *node) | ||
41 | { | ||
42 | RB_CLEAR_NODE(&node->node); | ||
43 | } | ||
44 | |||
45 | static inline void timerqueue_init_head(struct timerqueue_head *head) | ||
46 | { | ||
47 | head->head = RB_ROOT; | ||
48 | head->next = NULL; | ||
49 | } | ||
50 | #endif /* _LINUX_TIMERQUEUE_H */ | ||