update_curr_rt

Name:Update the current task's runtime statistics. Skip current tasks that* are not in our scheduling class.

Proto:static void update_curr_rt(struct rq *rq)

Type:void

Parameter:

Type	Parameter	Name
struct rq *	rq

957

958

rt_se = rt

962

If sched_class != rt_sched_class Then Return

965

now = rq_clock_task(rq)

966

delta_exec = now - exec_start

967

If Value for the false possibility is greater at compile time((s64)delta_exec <= 0) Then Return

970

schedstat_set(exec_max, max - return maximum of two values of the same or compatible types*@x: first value*@y: second value(exec_max, delta_exec))

973

sum_exec_runtime += delta_exec

974

account_group_exec_runtime - Maintain exec runtime for a thread group

976

exec_start = now

977

cgroup_account_cputime(curr, delta_exec)

979

If Not rt_bandwidth_enabled() Then Return

983

rt_rq = rt_rq_of_se(rt_se)

985

If sched_rt_runtime(rt_rq) != Single value that denotes runtime == period, ie unlimited time. Then

986

raw_spin_lock( & Nests inside the rq lock: )

987

rt_time += delta_exec

988

If sched_rt_runtime_exceeded(rt_rq) Then sched_curr - mark rq's current task 'to be rescheduled now'.* On UP this means the setting of the need_resched flag, on SMP it* might also involve a cross-CPU call to trigger the scheduler on* the target CPU.

990

raw_spin_unlock( & Nests inside the rq lock: )

**Caller**
Name	Describe
dequeue_task_rt
put_prev_task_rt
task_tick_rt	scheduler tick hitting a task of our scheduling class

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