enqueue_task_dl

Name:enqueue_task_dl

Proto:static void enqueue_task_dl(struct rq *rq, struct task_struct *p, int flags)

Type:void

Parameter:

Type	Parameter	Name
struct rq *	rq
struct task_struct *	p
int	flags

1474

pi_task = rt_mutex_get_top_task(p)

1475

pi_se = dl

1485

If pi_task && dl_prio(normal_prio) && dl_boosted Then

1486

pi_se = dl

1487

Else if Not dl_prio(normal_prio) Then

1495

BUG_ON(!dl_boosted || flags != ENQUEUE_REPLENISH)

1496

Return

1505

If Not * Some bool flags: *@dl_throttled tells if we exhausted the runtime. If so, the * task has to wait for a replenishment to be performed at the * next firing of dl_timer. *@dl_boosted tells if we are boosted due to DI. If so we are * outside bandwidth enforc && Not Regarding the deadline, a task with implicit deadline has a relative* deadline == relative period. A task with constrained deadline has a* relative deadline <= relative period.* We support constrained deadline tasks. However, there are some restrictions Then During the activation, CBS checks if it can reuse the current task's* runtime and period

1508

If on_rq == TASK_ON_RQ_MIGRATING || flags & ENQUEUE_RESTORE Then

1509

add_rq_bw( & dl, & dl)

1510

add_running_bw( & dl, & dl)

1525

If * Some bool flags: *@dl_throttled tells if we exhausted the runtime. If so, the * task has to wait for a replenishment to be performed at the * next firing of dl_timer. *@dl_boosted tells if we are boosted due to DI. If so we are * outside bandwidth enforc && Not (flags & ENQUEUE_REPLENISH) Then

1526

If flags & ENQUEUE_WAKEUP Then task_contending( & dl, flags)

1529

Return

1532

enqueue_dl_entity( & dl, pi_se, flags)

1534

If Not task_current(rq, p) && nr_cpus_allowed > 1 Then enqueue_pushable_dl_task(rq, p)

**Caller**
Name	Describe
dl_task_timer	This is the bandwidth enforcement timer callback
update_curr_dl	Update the current task's runtime statistics (provided it is still* a -deadline task and has not been removed from the dl_rq).

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