Messages in this thread | | | Date | Wed, 22 Feb 2017 14:04:15 +0900 | From | Byungchul Park <> | Subject | Re: [PATCH v3 8/9] sched: Don't reinvent the wheel but use existing llist API |
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On Tue, Feb 14, 2017 at 04:26:29PM +0900, Byungchul Park wrote: > Although llist provides proper APIs, they are not used. Make them used.
Hello,
What do you think?
> > Signed-off-by: Byungchul Park <byungchul.park@lge.com> > --- > kernel/sched/core.c | 15 +++------------ > 1 file changed, 3 insertions(+), 12 deletions(-) > > diff --git a/kernel/sched/core.c b/kernel/sched/core.c > index d01f9d0..8938125 100644 > --- a/kernel/sched/core.c > +++ b/kernel/sched/core.c > @@ -1773,7 +1773,7 @@ void sched_ttwu_pending(void) > { > struct rq *rq = this_rq(); > struct llist_node *llist = llist_del_all(&rq->wake_list); > - struct task_struct *p; > + struct task_struct *p, *t; > unsigned long flags; > struct rq_flags rf; > > @@ -1783,17 +1783,8 @@ void sched_ttwu_pending(void) > raw_spin_lock_irqsave(&rq->lock, flags); > rq_pin_lock(rq, &rf); > > - while (llist) { > - int wake_flags = 0; > - > - p = llist_entry(llist, struct task_struct, wake_entry); > - llist = llist_next(llist); > - > - if (p->sched_remote_wakeup) > - wake_flags = WF_MIGRATED; > - > - ttwu_do_activate(rq, p, wake_flags, &rf); > - } > + llist_for_each_entry_safe(p, t, llist, wake_entry) > + ttwu_do_activate(rq, p, p->sched_remote_wakeup ? WF_MIGRATED : 0, &rf); > > rq_unpin_lock(rq, &rf); > raw_spin_unlock_irqrestore(&rq->lock, flags); > -- > 1.9.1
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