diff options
Diffstat (limited to 'include/linux/timer.h')
| -rw-r--r-- | include/linux/timer.h | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/include/linux/timer.h b/include/linux/timer.h index d98c9a948aa7..e8f79ea49c74 100644 --- a/include/linux/timer.h +++ b/include/linux/timer.h @@ -60,11 +60,30 @@ static inline int timer_pending(const struct timer_list * timer) return timer->base != NULL; } -extern void add_timer(struct timer_list * timer); extern void add_timer_on(struct timer_list *timer, int cpu); extern int del_timer(struct timer_list * timer); +extern int __mod_timer(struct timer_list *timer, unsigned long expires); extern int mod_timer(struct timer_list *timer, unsigned long expires); - + +/*** + * add_timer - start a timer + * @timer: the timer to be added + * + * The kernel will do a ->function(->data) callback from the + * timer interrupt at the ->expired point in the future. The + * current time is 'jiffies'. + * + * The timer's ->expired, ->function (and if the handler uses it, ->data) + * fields must be set prior calling this function. + * + * Timers with an ->expired field in the past will be executed in the next + * timer tick. + */ +static inline void add_timer(struct timer_list * timer) +{ + __mod_timer(timer, timer->expires); +} + #ifdef CONFIG_SMP extern int del_timer_sync(struct timer_list * timer); #else |