Re: [PATCH -next] sched/deadline: Add start_new_instance helper

From: shangxiaojing
Date: Fri Aug 26 2022 - 05:10:11 EST



On 2022/8/26 16:57, Daniel Bristot de Oliveira wrote:
On 8/26/22 09:40, shangxiaojing wrote:
again, this is not a good function name. Maybe, dl_replenish_new_period() ?
right, i have thought like replenish_new_instance, but when i'm making
patch,  i was worried that "replenish" is only for ENQUEUE_REPLENISH.
I see, but that is a flag, not the action.

what about dl_start_new_period? which means a new deadline will be set, rather than
The thing it is doing is replenishing...

    dl_se->deadline += pi_of(dl_se)->dl_period;

in replenish_dl_entity.
that is why I added "new_period".... so replenish_dl_new_period() to keep the consistency.

ok, i'll use replenish_dl_new_period in v2.

+static inline void start_new_instance(struct sched_dl_entity *dl_se, struct rq *rq)

+{
+    /* for non-boosted task, pi_of(dl_se) == dl_se */
+    dl_se->deadline = rq_clock(rq) + pi_of(dl_se)->dl_deadline;
+    dl_se->runtime = pi_of(dl_se)->dl_runtime;
+}
+
-- Daniel
-- Daniel

Thanks,

Shang XiaoJing