hrtimer_try_to

函数名称：hrtimer_try_to_cancel - try to deactivate a timer*@timer: hrtimer to stop* Returns:* * 0 when the timer was not active* * 1 when the timer was active* * -1 when the timer is currently executing the callback function and* cannot be stopped

函数原型：int hrtimer_try_to_cancel(struct hrtimer *timer)

返回类型：int

参数：

类型	参数	名称
struct hrtimer *	timer

**调用者**
名称	描述
task_contending
switched_to_dl	When switching to -deadline, we may overload the rq, then* we try to push someone off, if possible.
hrtimer_cancel	hrtimer_cancel - cancel a timer and wait for the handler to finish.@timer: the timer to be cancelled Returns:* 0 when the timer was not active* 1 when the timer was active
alarm_try_to_cancel	alarm_try_to_cancel - Tries to cancel an alarm timer@alarm: ptr to alarm to be canceled Returns 1 if the timer was canceled, 0 if it was not running,* and -1 if the callback was running
common_hrtimer_try_to_cancel
do_setitimer
bc_shutdown
bfq_rq_enqueued	Called when a new fs request (rq) is added to bfqq. Check if there's* something we should do about it.
__bfq_bfqd_reset_in_service	rns true if the in-service queue gets freed
io_kill_timeout
io_link_cancel_timeout
io_timeout_cancel
dl_change_utilization
tcp_clear_xmit_timers
bfq_select_queue	Select a queue for service. If we have a current queue in service,* check whether to continue servicing it, or retrieve and set a new one.
do_timerfd_settime

函数逻辑报告