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sched/core: Use the new llist_for_each_entry_safe() primitive 

Now that we've added llist_for_each_entry_safe(), use it to simplify
an open coded version of it in sched_ttwu_pending().

Signed-off-by: Byungchul Park <byungchul.park@lge.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: <kernel-team@lge.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1494549584-11730-1-git-send-email-byungchul.park@lge.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Byungchul Park 2017-05-12 09:39:44 +09:00 committed by Ingo Molnar
parent d714893e61
commit 73215849df
1 changed files with 3 additions and 12 deletions
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15
kernel/sched/core.c
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@ -1731,7 +1731,7 @@ 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;
struct rq_flags rf;
if (!llist)
@ -1740,17 +1740,8 @@ void sched_ttwu_pending(void)
rq_lock_irqsave(rq, &rf);
update_rq_clock(rq);
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_unlock_irqrestore(rq, &rf);
}