lkml.org 
[lkml]   [2016]   [Jul]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2] sched/deadline: remove useless param from setup_new_dl_entity
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

\
 
 \ /
  Last update: 2016-07-05 11:21    [W:1.390 / U:1.248 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site