__task_rq_lock

Name:__task_rq_lock - lock the rq @p resides on.

Proto:struct rq *__task_rq_lock(struct task_struct *p, struct rq_flags *rf)__acquires(rq->lock)

Type:struct rq

Parameter:

Type	Parameter	Name
struct task_struct *	p
struct rq_flags *	rf

84

lockdep_assert_held( & Protection of the PI data structures: )

86

87

rq = task_rq(p)

88

raw_spin_lock( & runqueue lock: )

89

If Value is more likely to compile time(rq == task_rq(p) && !task_on_rq_migrating(p)) Then

90

rq_pin_lock(rq, rf)

91

Return rq

93

raw_spin_unlock( & runqueue lock: )

95

When Value for the false possibility is greater at compile time(task_on_rq_migrating(p)) cycle

96

**Caller**
Name	Describe
ttwu_remote	Called in case the task @p isn't fully descheduled from its runqueue,* in this case we must do a remote wakeup. Its a 'light' wakeup though,* since all we need to do is flip p->state to TASK_RUNNING, since* the task is still ->on_rq.
wake_up_new_task	wake_up_new_task - wake up a newly created task for the first time.* This function will do some initial scheduler statistics housekeeping* that must be done for every newly created context, then puts the task* on the runqueue and wakes it.

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