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Re: [PATCH v2] sched/deadline: remove useless param from setup_new_dl_entity

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On 05/07/16 15:37, Wanpeng Li wrote:
> 2016-06-30 3:07 GMT+08:00 Juri Lelli <juri.lelli@arm.com>:
> > setup_new_dl_entity() takes two parameters, but it only actually uses
> > one of them, under a different name, to setup a new dl_entity, after:
> >
> >  2f9f3fdc928 "sched/deadline: Remove dl_new from struct sched_dl_entity"
> >
> > as we currently do
> >
> >  setup_new_dl_entity(&p->dl, &p->dl)
> >
> > However, before Luca's change we were doing
> >
> >  setup_new_dl_entity(dl_se, pi_se)
> >
> > in update_dl_entity() for a dl_se->new entity: we were using pi_se's
> > parameters (the potential PI donor) for setting up a new entity.
> >
> > Restore this behaviour (as we want to correctly initialize parameters of
> > a boosted task that enters DEADLINE) by removing the useless second
> > parameter of setup_new_dl_entity() and retrieving the top waiter
> > directly from inside that function.
> >
> > Cc: Ingo Molnar <mingo@redhat.com>
> > Cc: Peter Zijlstra <peterz@infradead.org>
> > Cc: Steven Rostedt <rostedt@goodmis.org>
> > Cc: Luca Abeni <luca.abeni@unitn.it>
> > Signed-off-by: Juri Lelli <juri.lelli@arm.com>
> >
> 
> Reviewed-by: Wanpeng Li <wanpeng.li@hotmail.com>
> 

Thanks!

- Juri

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[PATCH v2] sched/deadline: remove useless param from setup_new_dl_entity Juri Lelli <juri.lelli@arm.com> - 2016-06-29 21:10 +0200
  Re: [PATCH v2] sched/deadline: remove useless param from  setup_new_dl_entity luca abeni <luca.abeni@unitn.it> - 2016-07-04 11:10 +0200
    Re: [PATCH v2] sched/deadline: remove useless param from  setup_new_dl_entity Juri Lelli <juri.lelli@arm.com> - 2016-07-04 11:30 +0200
  Re: [PATCH v2] sched/deadline: remove useless param from setup_new_dl_entity Wanpeng Li <kernellwp@gmail.com> - 2016-07-05 09:40 +0200
    Re: [PATCH v2] sched/deadline: remove useless param from  setup_new_dl_entity Juri Lelli <juri.lelli@arm.com> - 2016-07-05 11:00 +0200
  Re: [PATCH v2] sched/deadline: remove useless param from  setup_new_dl_entity Steven Rostedt <rostedt@goodmis.org> - 2016-07-05 16:30 +0200
    Re: [PATCH v2] sched/deadline: remove useless param from  setup_new_dl_entity Juri Lelli <juri.lelli@arm.com> - 2016-07-05 16:40 +0200
      Re: [PATCH v2] sched/deadline: remove useless param from  setup_new_dl_entity Steven Rostedt <rostedt@goodmis.org> - 2016-07-05 18:50 +0200
        Re: [PATCH v2] sched/deadline: remove useless param from  setup_new_dl_entity Juri Lelli <juri.lelli@arm.com> - 2016-07-05 19:00 +0200
          Re: [PATCH v2] sched/deadline: remove useless param from  setup_new_dl_entity luca abeni <luca.abeni@unitn.it> - 2016-07-06 10:50 +0200
            Re: [PATCH v2] sched/deadline: remove useless param from  setup_new_dl_entity Juri Lelli <juri.lelli@arm.com> - 2016-07-07 10:40 +0200
              Re: [PATCH v2] sched/deadline: remove useless param from  setup_new_dl_entity Steven Rostedt <rostedt@goodmis.org> - 2016-07-07 15:50 +0200
                Re: [PATCH v2] sched/deadline: remove useless param from  setup_new_dl_entity Juri Lelli <juri.lelli@arm.com> - 2016-07-08 13:40 +0200
    Re: [PATCH v2] sched/deadline: remove useless param from  setup_new_dl_entity luca abeni <luca.abeni@unitn.it> - 2016-07-06 10:50 +0200

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