diff options
author | Ingo Molnar <mingo@elte.hu> | 2011-02-14 11:55:18 +0100 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2011-02-14 11:55:18 +0100 |
commit | d2137d5af4259f50c19addb8246a186c9ffac325 (patch) | |
tree | 2f7e309f9cf8ef2f2698532c226edda38021fe69 /include/linux/timerqueue.h | |
parent | f005fe12b90c5b9fe180a09209a893e09affa8aa (diff) | |
parent | 795abaf1e4e188c4171e3cd3dbb11a9fcacaf505 (diff) |
Merge branch 'linus' into x86/bootmem
Conflicts:
arch/x86/mm/numa_64.c
Merge reason: fix the conflict, update to latest -rc and pick up this
dependent fix from Yinghai:
e6d2e2b2b1e1: memblock: don't adjust size in memblock_find_base()
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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 @@ +#ifndef _LINUX_TIMERQUEUE_H +#define _LINUX_TIMERQUEUE_H + +#include <linux/rbtree.h> +#include <linux/ktime.h> + + +struct timerqueue_node { + struct rb_node node; + ktime_t expires; +}; + +struct timerqueue_head { + struct rb_root head; + struct timerqueue_node *next; +}; + + +extern void timerqueue_add(struct timerqueue_head *head, + struct timerqueue_node *node); +extern void timerqueue_del(struct timerqueue_head *head, + struct timerqueue_node *node); +extern struct timerqueue_node *timerqueue_iterate_next( + struct timerqueue_node *node); + +/** + * timerqueue_getnext - Returns the timer with the earlies expiration time + * + * @head: head of timerqueue + * + * Returns a pointer to the timer node that has the + * earliest expiration time. + */ +static inline +struct timerqueue_node *timerqueue_getnext(struct timerqueue_head *head) +{ + return head->next; +} + +static inline void timerqueue_init(struct timerqueue_node *node) +{ + RB_CLEAR_NODE(&node->node); +} + +static inline void timerqueue_init_head(struct timerqueue_head *head) +{ + head->head = RB_ROOT; + head->next = NULL; +} +#endif /* _LINUX_TIMERQUEUE_H */ |